WO2022050076A1 - Holding device and printing system - Google Patents

Holding device and printing system Download PDF

Info

Publication number
WO2022050076A1
WO2022050076A1 PCT/JP2021/030501 JP2021030501W WO2022050076A1 WO 2022050076 A1 WO2022050076 A1 WO 2022050076A1 JP 2021030501 W JP2021030501 W JP 2021030501W WO 2022050076 A1 WO2022050076 A1 WO 2022050076A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
bottle
holding device
blanket
rotational symmetry
Prior art date
Application number
PCT/JP2021/030501
Other languages
French (fr)
Japanese (ja)
Inventor
秀明 岡所
智之 古村
秀次 村元
拓司 加藤
Original Assignee
株式会社Ｓｃｒｅｅｎホールディングス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｓｃｒｅｅｎホールディングス filed Critical 株式会社Ｓｃｒｅｅｎホールディングス
Publication of WO2022050076A1 publication Critical patent/WO2022050076A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/18—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes
    • B41F3/20—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed of special construction or for particular purposes with fixed type-beds and travelling impression cylinders

Definitions

  • This application relates to a holding device and a printing system.
  • a work holding device that rotatably holds the work around the axis of rotational symmetry when the printing device is relatively pressed against the side surface of the work having a shape that is rotationally symmetric about the axis of rotational symmetry to perform printing. It is known in Patent Document 1 below.
  • a plurality of backup members are provided in contact with the side surface of the work to support the work in a rotatable posture around the axis of rotational symmetry.
  • the positions of the plurality of backup members exemplified in Patent Document 1 regulate the displacement of the work by the blanket that transfers to the work and the displacement of the work by gravity.
  • the holding device and printing system disclosed in the present application are intended to stably hold an object to be printed.
  • the holding device holds an object having a surface to be printed having a rotationally symmetric shape.
  • the holding device is rotatable about the first axis, and at least a part thereof is rotatable around the first axis and a first member having an annular shape centered on the first axis.
  • the first position where the first member abuts on the object When viewed along the first direction parallel to the axis of rotational symmetry, the first position where the first member abuts on the object, the second position where the second member abuts on the object, and the third member.
  • the triangle formed by the third position in contact with the object surrounds the axis of rotational symmetry.
  • the target is stably held in the holding device.
  • FIG. 1 It is a schematic diagram which schematically exemplifies the configuration of a printing system. It is a schematic diagram which schematically exemplifies the configuration of a printing system. It is a block diagram which shows typically the control system which controls a printing system. It is a top view which illustrates the structure of the bottle holding device which concerns on Embodiment 1. FIG. It is a side view which illustrates the structure of the bottle holding device which concerns on Embodiment 1. FIG. It is a side view which schematically exemplifies the positional relationship between a bottle and a backup roller at the time of transfer. It is a side view which schematically exemplifies the positional relationship between a bottle and a backup roller.
  • FIG. 3 is a perspective view illustrating a blanket roll and a curing unit. It is a top view which shows the state which a contact member does not come into contact with a movable part. It is a top view which shows the state of transfer. It is a side view which illustrates the structure of the bottle holding device which concerns on Embodiment 2.
  • FIG. It is a perspective view which illustrates the positional relationship between a bottle and a backup roller. It is a side view which schematically exemplifies the positional relationship between a bottle, a backup roller, and a blanket roll at the time of transfer.
  • ordinal numbers such as “first” or “second” may be used in the description described below, these terms are used to facilitate understanding of the contents of the embodiments. It is used for convenience, and does not limit the order that can occur due to these ordinal numbers.
  • the expression indicating the shape not only expresses the shape strictly geometrically, but also, for example, to the extent that the same effect can be obtained. It also represents a shape with irregularities and chamfers.
  • the expressions “equipped”, “equipped”, “equipped”, “included”, or “have” one component are not exclusive expressions that exclude the existence of other components.
  • the expression “at least one of A, B and C” includes A only, B only, C only, any two of A, B and C, and all of A, B and C.
  • FIGS. 1 and 2 are schematic views schematically illustrating the configuration of the printing system 100.
  • the bottle holding device according to the later embodiment can be adopted in the printing system 100.
  • the printing system 100 prints on the side surface of the work.
  • the work is an article having a side surface having a rotationally symmetric shape.
  • the work rotates about the axis of rotational symmetry of the side surface (hereinafter referred to as "rotational symmetry axis"), and printing is performed on the side surface.
  • the work is, for example, a container made of glass or a resin made of, for example, polyethylene terephthalate (PET) as a main material.
  • PET polyethylene terephthalate
  • a bottle 8 is exemplified as a work
  • a side surface 80 of the bottle 8 is exemplified as a side surface of the work.
  • the bottle 8 is held by the bottle holding device 300.
  • the detailed configuration of the bottle holding device 300 will be described in detail later in the embodiment.
  • the bottle 8 is an example of a work, and the bottle holding device 300 functions as a work holding device.
  • the XYZ Cartesian coordinate system is set as shown in FIG. 1 in order to show the directions in a unified manner in the following description.
  • the (-Z) direction is set vertically downward
  • the XY plane is set to the horizontal plane.
  • a so-called right-handed coordinate system is set in the XYZ Cartesian coordinate system.
  • the dotted arrow attached in the vicinity of the component indicates the movement of the component.
  • the printing system 100 includes at least one printing device 101.
  • the printing apparatus 101 prints, for example, a single color on the side surface 80.
  • a plurality of printing devices 101 are provided in the printing system 100, and each printing device 101 performs single-color printing of different colors to realize multi-color printing (including two-color printing; the same applies hereinafter).
  • the case where one printing apparatus 101 is mainly provided in the printing system 100 will be described below.
  • Each of the printing devices 101 includes a plate stage unit 1, an ink filling unit 2, a transfer unit 3, and a curing unit 4. Each of these units is arranged side by side in the above order from the ( ⁇ Y) direction side to the (+ Y) direction side.
  • FIG. 1 shows a state in which the bottle 8 is held by the bottle holding device 300 and separated from the transfer unit 3 and the curing unit 4.
  • FIG. 2 shows a state in which the bottle 8 is held by the bottle holding device 300 and is close to the transfer unit 3 and the curing unit 4.
  • the bottle 8 held by the bottle holding device 300 moves between the plurality of printing devices 101.
  • the bottle 8 in the bottle holding device 300 is rotatably held around the axis of rotational symmetry of the side surface 80.
  • Each of the above steps (i) to (iv) is executed in a state where the bottle 8 is held by the bottle holding device 300.
  • the steps (i) and (ii) are executed, for example, in a state where the bottle 8 is separated from the transfer unit 3 and the curing unit 4 (see FIG. 1), or while moving between the plurality of printing devices 101. ..
  • the steps (iii) and (iv) are performed in a state where the bottle 8 is close to the transfer unit 3 and the curing unit 4 (see FIG. 2).
  • ink is applied while the bottle 8 is held by the bottle holding device 300 after the steps (i) to (iv) are executed in all the printing devices 101. Further curing is performed. In this case, the curing of the ink in the step (iv) is performed as a temporary curing for each monochrome printing.
  • the printed bottle 8 is removed from the bottle holding device 300, and then the bottle 8 to be printed is attached to the bottle holding device 300.
  • the bottle 8 is attached to and detached from the bottle holding device 300 at a position away from the printing device 101.
  • the attachment and detachment is performed manually by an operator.
  • the version stage unit 1 includes a stage 11 and a version 12.
  • the stage 11 places the plate 12 on the (+ Z) direction side.
  • the plate 12 is a plate (for example, an intaglio) for forming an ink pattern.
  • the stage 11 is moved in any direction in the XYZ direction and further in the rotation direction around the Z axis. For example, a cross roller bearing mechanism is used for such movement.
  • the stage 11 is movable in the (+ Y) direction from the position on the ( ⁇ Y) direction side when viewed from the ink filling unit 2 and the transfer unit 3, and is close to the transfer unit 3 via the ink filling unit 2 (FIG. Dotted arrow on the left side of 1).
  • the stage 11 is movable in the (-Y) direction and is separated from the transfer unit 3 via the ink filling unit 2 (dotted arrow on the left side of FIG. 1).
  • the ink filling unit 2 includes a nozzle 21 and an ink supply unit 22.
  • the ink supply unit 22 supplies photocurable ink (hereinafter, may be simply referred to as “ink”) to the nozzle 21.
  • the photocurable ink is, for example, a pigment as a color developer, a polymer material (including at least one of a monomer and an oligomer) that constitutes a strong polymer layer by polymerization, and an active species generated by chemical change upon exposure to light. Contains a photopolymerization initiator that accelerates the polymerization reaction of the polymer material.
  • the ink supplied to the nozzle 21 is ejected from the ejection port provided at the lower end of the nozzle 21 and the plate 12 ( It is applied to the surface on the + Z) direction side (hereinafter, tentatively referred to as "upper surface").
  • the plate 12 when the plate 12 is an intaglio, the upper surface of the plate 12 is rubbed by a doctor blade (not shown). As a result, the concave portion of the plate 12 is filled with ink, the ink other than the concave portion is removed, and an ink pattern is formed on the plate 12.
  • the plate 12 on which the ink pattern is formed further moves in the (+ Y) direction and approaches the transfer unit 3.
  • the transfer unit 3 includes a blanket roll 30 and a motor 33.
  • the motor 33 rotates the blanket roll 30.
  • the blanket roll 30 has a blanket body 31 and a blanket 32.
  • the blanket body 31 is a metal cylinder.
  • the blanket 32 is wrapped around the surface of the blanket body 31.
  • the blanket 32 has a cylindrical shape.
  • the blanket roll 30 is rotatably supported around the axis of rotation shown by the alternate long and short dash line in FIGS. 1 and 2.
  • the surface of the blanket 32 can carry ink.
  • the stage 11 moves in the (+ Y) direction and the blanket roll 30 faces the plate 12 in the Z direction, the surface of the blanket 32 comes into contact with the upper surface of the plate 12.
  • the ink pattern formed on the plate 12 is transferred to the surface of the blanket 32. Such a transition is also described below as the ink pattern being accepted by the blanket 32.
  • the bottle 8 is close to the transfer unit 3, the side surface 80 is in contact with the blanket 32, and the blanket 32 and the side surface 80 are in contact with each other and rotate in opposite directions. As a result, the ink pattern received by the blanket 32 is transferred to the side surface 80. It is desirable from the viewpoint of such transfer that the height of the unevenness that may occur on the side surface 80 is smaller than the thickness of the blanket 32.
  • the blanket 32 functions as an intermediate transfer body that temporarily supports the ink pattern transferred to the side surface 80.
  • the blanket 32 is made of an elastic resin material, such as a silicone resin.
  • Reverse transfer disturbs the ink pattern on the side surface 80.
  • the viscosity of the ink transferred to the side surface 80 to reduce reverse transfer is increased, for example, as follows.
  • Light is irradiated from the curing unit 4 toward the side surface 80 immediately after receiving the transfer of the ink pattern from the blanket 32.
  • a part of the polymer material contained in the ink is polymerized to increase the viscosity of the ink, but the ink is cured under conditions that do not cure the entire ink.
  • Light is emitted from the unit 4.
  • light is emitted from the curing unit 4 under the condition that the entire ink is cured. Such conditions are set, for example, by the intensity of the light.
  • the adhesiveness from the side surface 80 to the blanket 32 decreases, and the reverse transfer is reduced. Such a decrease in adhesiveness is also desirable from the viewpoint of avoiding contamination of the bottle holding device 300.
  • FIG. 3 is a block diagram schematically showing a control system that controls the printing system 100.
  • the arrow indicates that the element indicated by the block on the arrowhead side mechanically drives or controls the element indicated by the block on the arrowhead side.
  • the stage moving device 401 moves the stage 11 in the (+ Y) direction and the ( ⁇ Y) direction.
  • the motor drive circuit 402 controls the drive of the motor 33.
  • the motor 33 rotates the blanket roll 30.
  • the bottle transfer device 403 brings the bottle holding device 300 closer to or further from the transfer unit 3 and the curing unit 4. When the printing system 100 is provided with a plurality of printing devices 101, the bottle transfer device 403 also moves the bottle holding device 300 between them.
  • the control device 9 is composed of an electronic circuit including a processor such as a CPU (Central Processing Unit) and a storage device such as a RAM (Random Access Memory) and a ROM (Read Only Memory).
  • the control device 9 integrally controls the operations of the stage moving device 401, the motor drive circuit 402, the bottle transfer device 403, the ink supply unit 22, and the curing unit 4.
  • the control device 9 controls the operation of, for example, the stage moving device 401 and the ink supply unit 22, and the ink pattern in the plate 12 can be obtained.
  • the control device 9 controls, for example, the operation of the stage moving device 401 and the motor drive circuit 402, and causes the blanket 32 to accept the ink pattern.
  • the control device 9 controls the operation of, for example, the bottle holding device 300 and the motor drive circuit 402, and transfer from the blanket 32 to the side surface 80 is realized.
  • FIG. 4 is a top view illustrating the configuration of the bottle holding device 300 according to the first embodiment together with the bottle 8 held by the bottle holding device 300.
  • the front side of the paper corresponds to the (+ Z) direction
  • the downward direction corresponds to the (+ Y) direction.
  • FIG. 5 is a side view illustrating the configuration of the bottle holding device 300 according to the first embodiment together with the bottle 8 held by the bottle holding device 300.
  • the front side of the paper corresponds to the (+ Y) direction
  • the upward direction corresponds to the (+ Z) direction.
  • the side surface 80 has a rotationally symmetric shape with respect to the rotationally symmetric axis 800.
  • the case where the side surface 80 has a cylindrical shape will be described as an example.
  • the bottle 8 has a mouth portion 81 and a bottom portion 82.
  • the mouth portion 81 and the bottom portion 82 face each other in a direction parallel to the axis of rotational symmetry 800.
  • the liquid is poured from the outside to the inside of the bottle 8 through the mouth portion 81, or the liquid is poured from the inside to the outside of the bottle 8. Beverages and cosmetics are exemplified as the liquid.
  • a bottle cap (not shown) can be attached to and detached from the mouth 81.
  • the bottle holding device 300 has a configuration for holding the bottle 8 with the bottle cap removed.
  • the bottle holding device 300 has a first holding portion 310, a second holding portion 320, and a holding main body portion 330.
  • the first holding portion 310 rotatably holds the mouth portion 81 with the shaft 309 as a rotation axis.
  • the second holding portion 320 rotatably holds the bottom portion 82 with the shaft 309 as the center of rotation.
  • the first holding portion 310 may rotationally drive the mouth portion 81 with the shaft 309 as the rotating shaft
  • the second holding portion 320 may rotationally drive the bottom portion 82 with the shaft 309 as the rotating shaft.
  • the side surface 80 rotates around the rotation symmetry axis 800 because the rotation symmetry axis 800 coincides with the axis 309 and the bottle 8 is held by the bottle holding device 300.
  • the first holding portion 310 rotatably holds the bottle 8 about the axis of rotational symmetry 800.
  • the axis 309 is parallel to the X direction.
  • the mouth portion 81 is located on the (+ X) direction side with respect to the bottom portion 82, and the bottle 8 is held by the bottle holding device 300.
  • the holding main body portion 330 has a first support portion 331, a second support portion 332, and a base 333.
  • the base 333 has a flat plate shape perpendicular to the Z direction.
  • the first support portion 331 is erected in the (+ Z) direction from the base 333 on the (+ X) direction side.
  • the second support portion 332 is erected in the (+ Z) direction from the base 333 at a position separated from the first support portion 331 in the (-X) direction at predetermined intervals.
  • the predetermined interval is wider than the height of the bottle 8 (the length of the bottle 8 along the X direction in FIG. 4).
  • the first holding portion 310 has a shaft 311, a mouth holding member 313, and a picking member 314.
  • the shaft 311 is parallel to the X direction.
  • the shaft 311 is rotatably supported with respect to the first support portion 331 so that the central axis of the shaft 311 itself coincides with the shaft 309 and is centered on the central axis.
  • the mouth holding member 313 is provided at the end of the shaft 311 on the (+ X) direction side.
  • the knob member 314 is provided at the end of the shaft 311 on the (-X) direction side.
  • a male screw 83 is formed on the outer circumference of the mouth portion 81, and a female screw is formed on the inside of the mouth holding member 313. It can be said that the male screw 83 and the female screw have a shape of being screwed into each other, and the mouth portion 81 is screwed with the mouth holding member 313.
  • the configuration in which the mouth portion 81 is held by the mouth holding member 313 is not limited to the configuration using screw screwing.
  • a configuration may be adopted in which the mouth holding member 313 holds the mouth portion 81 with a plurality of members.
  • the second holding portion 320 has a shaft 321 extended in the X direction, a pressing member 322, an urging member 323, and a picking member 324.
  • the shaft 321 is rotatably supported with respect to the second support portion 332 so that the central axis of the shaft 321 itself coincides with the shaft 309 and is centered on the central axis.
  • the pressing member 322 is provided at the end of the shaft 321 on the (-X) direction side.
  • the knob member 324 is provided at the end of the shaft 321 on the (+ X) direction side.
  • the pressing member 322 comes into contact with the bottom portion 82 from the ( ⁇ X) direction side.
  • the bottle 8 is arranged so that the axis of rotational symmetry 800 coincides with the axis 309, and the pressing member 322 urges the bottom portion 82 in the (-X) direction in a state where the mouth portion 81 and the mouth holding member 313 are connected to the bottle. 8 is retained.
  • the bottle 8 is rotatably held in the bottle holding device 300 about the axis of rotational symmetry 800.
  • the urging member 323 has a function of urging the pressing member 322 to the bottom 82.
  • the urging member 323 is provided around the shaft 321 between the pressing member 322 and the wall surface 332a on the ( ⁇ X) direction side of the second support portion 332 without being fixed to the shaft 321.
  • the operator can move the picking member 324 in the (+ X) direction while resisting the urging force of the urging member 323 to separate the pressing member 322 from the bottom 82. Separating the pressing member 322 from the bottom portion 82 facilitates the process of removing the mouth holding member 313 from the mouth portion 81.
  • a self-aligning bearing (not shown) may be provided in the first support portion 331.
  • the self-aligning bearing contributes to the stable rotation of the bottle 8 as follows.
  • the axis of the male screw 83 may vary between the bottles 8 even if it is designed to coincide with the axis of rotational symmetry 800.
  • the male screw 83 is screwed with the female screw of the mouth holding member 313, it is assumed that the axial direction of the female screw does not match the shaft 309.
  • the stress is applied from the mouth holding member 313 to the mouth portion 81 in a direction non-parallel to the axis of rotational symmetry 800. It is assumed that the stress is large. The stress may cause the bottle 8 to be deformed or displaced.
  • the provision of the self-aligning bearing contributes to suppressing the stress applied to the mouth portion 81 even if the bottle 8 is rotated about the axis of rotational symmetry 800.
  • the motor 33 rotates the blanket 32 with the side surface 80 in contact with the blanket 32.
  • the bottle 8 may be driven to rotate with respect to the blanket 32, or may be rotated synchronously with the blanket 32 by a mechanism other than the blanket 32.
  • the rotation direction of the bottle 8 is opposite to the rotation direction of the blanket 32.
  • the bottle holding device 300 may include a rotary drive unit 340.
  • the rotation drive unit 340 is provided on the ( ⁇ X) direction side with respect to the first support unit 331.
  • the rotary drive unit 340 rotationally drives the bottle 8 via the shaft 311. Since the function of the rotation drive unit 340 itself has little relation to this embodiment, detailed description of the configuration of the rotation drive unit 340 is omitted.
  • the bottle holding device 300 includes backup rollers 351 and 352, 353.
  • the backup rollers 351r, 352 and 353 are mounted around the shafts 351r, 352r and 353r, respectively. At least a part of each of the backup rollers 351 and 352 and 353 is annular.
  • the portion is parallel to the X direction and the portion is concerned.
  • the position of the above in the Z direction coincides with the position of the axis of rotational symmetry 800 in the Z direction.
  • FIG. 6 is a side view schematically illustrating the positional relationship between the bottle 8, the backup rollers 351 and 352, 353, and the blanket roll 30 at the time of transfer.
  • the front side of the paper corresponds to the (+ X) direction
  • the upward direction corresponds to the (+ Z) direction.
  • the shaft 351r is parallel to the X direction and is rotatably supported by the first support portion 331 and the second support portion 332 about its own central axis 1a.
  • the shaft 352r is parallel to the X direction and is rotatably supported by the first support portion 331 and the second support portion 332 about its own central axis 2a.
  • the shaft 351r is arranged on the (+ Z) direction side and the (+ Y) direction side with respect to the rotation symmetry axis 800.
  • the shaft 352r is arranged on the (-Z) direction side and the (-Y) direction side with respect to the rotation symmetry axis 800.
  • the shaft 353r is parallel to the X direction.
  • the shaft 353r is arranged on the (+ Z) direction side with respect to the rotation symmetry axis 800.
  • the shaft 353r is rotatably supported around the central axis 3a of the shaft 353r on the (-X) direction side with respect to the movable portion 353s (see FIGS. 4 and 5).
  • the movable portion 353s is movably attached to the second support portion 332 along the (+ Y) direction and the ( ⁇ Y) direction. In the present embodiment, the movable portion 353s does not move in the direction perpendicular to the Y direction.
  • the movable portion 353s is urged in the (-Y) direction by a mechanism (not shown), for example, a spring.
  • a position (hereinafter referred to as “stop position”) at which the movable portion 353s is limited to move in the ( ⁇ Y) direction is defined by a mechanism (not shown). Therefore, in a state where an external force in the (+ Y) direction is not applied to the movable portion 353s, the movable portion 353s is located at the stop position.
  • the position of the shaft 353r in the Y direction is substantially equal to the position of the rotational symmetry axis 800 in the Y direction.
  • FIG. 4 and 5 illustrate a state in which the movable portion 353s is located at the stop position.
  • the backup roller 353, the shaft 353r, and the central axis 3a thereof when the movable portion 353s is located at the stop position are drawn by a solid line in FIG.
  • the second holding portion 320 can suppress the displacement of the bottle 8 in the (+ X) direction and the ( ⁇ X) direction, it suppresses the displacement of the rotational symmetry axis 800 in the radial direction (hereinafter, simply “diameter direction”). The effect is small.
  • the backup rollers 351, 352, 353 come into contact with the side surface 80 while the bottle 8 is held by the bottle holding device 300.
  • the backup rollers 351, 352, 353 suppress the displacement of the bottle 8 held by the bottle holding device 300 in the radial direction.
  • FIGS. 4 and 5 the positions of the backup rollers 351, 352, 353 in the X direction are exemplified to be substantially equal to each other. The case where the positions of the backup rollers 351 and 352 and 353 in the X direction are different will be described in the second embodiment.
  • the bottle 8 When the ink pattern is transferred from the blanket 32 to the side surface 80, the bottle 8 receives a force in the (+ Y) direction from the blanket 32. A force that opposes this force is applied from the backup roller 351 to the bottle 8, and the blanket 32 and the side surface 80 are appropriately brought into contact with each other.
  • the bottle holding device 300 presses the side surface 80 against the blanket 32 via the first support portion 331 and the mouth portion 81, and the second support portion 332 and the bottom portion 82. Both the mouth portion 81 and the bottom portion 82 are the ends of the bottle 8 in the X direction. Without the backup rollers 351 and 352,353, the bottle 8 may be displaced when the side surface 80 presses on the blanket 32. Since the backup rollers 351, 352, 353 abut on the side surface 80 between the first support portion 331 and the second support portion 332, the bottle 8 is unlikely to be displaced when the side surface 80 presses the blanket 32.
  • the backup rollers 351 and 352, 353 that come into contact with the side surface 80 also rotate.
  • all of the backup rollers 351 and 352 and 353 are annular at least at the portion where they abut on the side surface 80, and are rotatable about the central axes 1a, 2a and 3a, respectively.
  • the backup rollers 351 and 352, 353 abut on the side surface 80. If the viscosity of the transferred ink pattern is low, it is assumed that the ink pattern is secondarily transferred from the side surface 80 to which the ink pattern has already been transferred to the backup rollers 351, 352, 353.
  • the backup rollers 351, 352, 353 that have obtained the secondary transfer may lead to the tertiary transfer to the side surface 80, and thus the reverse transfer.
  • the contamination of the bottle holding device 300 described above in [Explanation of the overall configuration] includes secondary transfer to the backup rollers 351 and 352, 353.
  • the adoption of the curing unit 4 also contributes to the avoidance of such contamination.
  • the backup roller 353 is not always necessary for transfer. This is because the backup rollers 351, 352 and the blanket 32 surround the axis of rotational symmetry 800 and abut on the side surface 80 when viewed along the X direction.
  • the backup rollers 351, 352, 353 surround the axis of rotational symmetry 800 and abut on the side surface 80 when viewed along the X direction, except when transferred. This is because it is desirable that the bottle 8 is stably held in the bottle holding device 300 in consideration of the above-mentioned proximity, separation, and movement while the bottle holding device 300 holds the bottle 8.
  • the positional relationship when the backup rollers 351 and 352, 353 and the side surface 80 are preferably in contact with each other will be described in detail later.
  • Printing on the bottle 8 by the printing system 100 is realized as follows, for example.
  • the printing process is realized by the control device 9 executing a program stored in advance and causing each element exemplified by the block in FIG. 3 to execute a predetermined operation.
  • an area for attaching / detaching the bottle 8 (hereinafter referred to as “attaching / detaching area”) is set at a position away from the printing device 101.
  • the bottle transfer device 403 transports the bottle holding device 300 to the attachment / detachment area.
  • the operator attaches / detaches the bottle 8 to / from the bottle holding device 300 which has been conveyed to the attachment / detachment area.
  • the operator When the printed bottle 8 is attached to the bottle holding device 300, the operator operates the picking members 314 and 324 to release the holding of the bottle 8 by the first holding portion 310 and the second holding portion 320.
  • the operator presses the movable portion 353s in the (+ Y) direction to release the contact of the backup roller 353 with the side surface 80.
  • the holding is released, and the bottle 8 from which the contact is released is removed from the bottle holding device 300.
  • the operator If the bottle 8 is not attached to the bottle holding device 300, the operator carries the bottle 8 before printing into the bottle holding device 300.
  • the operator presses the movable portion 353s, and a state in which the backup roller 353 is temporarily moved in the (+ Y) direction is obtained. In this state, the operator brings the side surface 80 into contact with the backup rollers 351 and 352, then stops pressing the movable portion 353s and brings the backup roller 353 into contact with the side surface 80.
  • the contact of the backup rollers 351, 352, 353 with the side surface 80 contributes to the fact that the bottle 8 is less likely to be displaced in the radial direction with respect to the axis of rotational symmetry 800.
  • the operator operates the picking members 314 and 324 to cause the first holding portion 310 and the second holding portion 320 to hold the bottle 8.
  • the holding of the bottle 8 by the first holding portion 310 and the second holding portion 320 contributes to the fact that the bottle 8 is less likely to be displaced along the axis of rotational symmetry 800.
  • the operator acknowledges that the bottle 8 before printing is attached to the control device 9.
  • the control device 9 controls the bottle transfer device 403 to transfer the bottle holding device 300 holding the bottle 8 to the printing device 101.
  • the control device 9 controls the stage moving device 401 to move the stage 11 in the (+ Y) direction, and the plate 12 faces the nozzle 21 in the Z direction.
  • the control device 9 controls the ink supply unit 22 to eject ink through the nozzle 21.
  • An ink pattern is formed on the upper surface of the plate 12.
  • the control device 9 controls the motor drive circuit 402 to rotate the motor 33.
  • the rotation of the motor 33 rotates the blanket roll 30.
  • the control device 9 controls the stage moving device 401 to move the stage 11 further in the (+ Y) direction in synchronization with the rotation of the blanket roll 30.
  • the blanket 32 rotates while being in contact with the plate 12, and receives the ink pattern.
  • the control device 9 controls the stage moving device 401 to move the stage 11 in the (-Z) direction to release the contact between the blanket 32 and the plate 12. Further, the control device 9 controls the stage moving device 401 to move the stage 11 in the (—Y) direction, and the stage 11 is arranged on the (—Y) direction side of the ink filling unit 2.
  • the control device 9 controls the bottle transfer device 403 to move the bottle holding device 300 in the ( ⁇ Y) direction, and brings the printing start position of the side surface 80 into contact with the blanket 32.
  • the blanket 32 is rotated to transfer the ink pattern from the blanket 32 to the side surface 80.
  • the rotary drive unit 340 may be operated in response to a drive command from the control device 9. In this case, the rotation drive unit 340 rotates the bottle 8 in synchronization with the motor 33 under the control of the control device 9.
  • the rotation drive unit 340 may, under the control of the control device 9, arrange the printing start position on the side surface 80 at a predetermined position before the side surface 80 abuts on the blanket 32.
  • the bottle holding device 300 holding the bottle 8 on which the ink pattern is printed is conveyed from the printing device 101 to the attachment / detachment area by the stage moving device 401 under the control of the control device 9.
  • the mouth portion 81 and the bottom portion 82 of the bottle 8 are rotatably held around the rotation symmetry axis 800 by the first holding portion 310 and the second holding portion 320, respectively.
  • the side surface 80 may not have a cylindrical shape, but may have a rotationally symmetric shape with respect to the rotational symmetry axis 800, and the outer diameter dimension of the bottle 8 may differ at the position in the X direction.
  • FIGS. 7 and 8 are side views schematically illustrating the positional relationship between the bottle 8 and the backup rollers 351, 352, 353.
  • the front side of the paper corresponds to the (+ X) direction
  • the upward direction corresponds to the (+ Z) direction
  • the axis of rotational symmetry 800 is parallel to the (+ X) direction and thus the ( ⁇ X) direction. Therefore, both FIGS. 7 and 8 are views taken along the direction parallel to the axis of rotational symmetry 800.
  • FIG. 7 shows, for example, a suitable positional relationship in the proximity and separation of the bottle holding device 300 to the transfer unit 3 and the curing unit 4, the movement between the plurality of printing devices 101, and the transfer.
  • the positional relationship shown in FIG. 7 is obtained when the movable portion 353s is in the stop position.
  • FIG. 8 shows a suitable positional relationship when removing the bottle 8 from the transfer and bottle holding device 300.
  • the positional relationship shown in FIG. 8 is obtained by moving the movable portion 353s in the (+ Y) direction.
  • the backup rollers 351 and 352 abut with the bottle 8 at positions 1b and 2b, respectively.
  • the backup roller 353 comes into contact with the bottle 8 at position 3b.
  • the backup roller 353 does not come into contact with the bottle 8.
  • the triangle 38 formed by the position 1b, the position 2b, and the position 3b surrounds the axis of rotational symmetry 800.
  • the bottle 8 is stably held in the bottle holding device 300 by the backup rollers 351, 352, 353. Even if the bottle holding device 300 approaches or separates from the transfer unit 3 and the curing unit 4 or moves between the plurality of printing devices 101, the displacement of the bottle 8 in the radial direction is suppressed. .. This is because the distance between any two of the backup rollers 351, 352, 353 is smaller than the diameter of the circle exhibited by the side surface 80 when viewed along the axis of rotational symmetry 800.
  • the position 3c of the backup rollers 353 closest to the rotation symmetry axis 800 is introduced.
  • the backup roller 353 does not come into contact with the side surface 80.
  • the positions 3b and 3c coincide with each other.
  • the axis of rotational symmetry 800 deviates from the triangle 39 formed by the positions 1b, 2b, 3c.
  • the triangle 39 and the axis of rotational symmetry 800 have such a positional relationship, it is easy to take out the bottle 8 from the bottle holding device 300. This is because the distance between any two of the backup rollers 351 and 352 and 353 is larger than the diameter of the circle exhibited by the side surface 80 as seen along the axis of rotational symmetry 800. According to FIG. 8, the distance between the positions 2b and 3c is larger than the diameter of the circle.
  • the predetermined interval is the diameter of the circle (circle exhibited by the side surface 80 in FIGS. 7 and 8) defined by the positions 1b, 2b, and 3b.
  • the rotational symmetry axis 800 is surrounded by the triangle 39 when viewed along the rotational symmetry axis 800. Also, it is easy to take out the bottle 8 from the bottle holding device 300. The same applies when the distance between the position 1b and the position closest to the position 1b of the backup rollers 353 is wider than the predetermined interval.
  • the bottle 8 By moving the position of the backup roller 353, the bottle 8 can be stably held by the bottle holding device 300 and can be easily taken out from the bottle holding device 300.
  • FIG. 9 is a perspective view illustrating the configuration of the blanket roll 30, the curing unit 4, and the periphery thereof.
  • the blanket body 31 is rotationally driven by the shaft 301.
  • the shaft 301 is rotationally driven by the shaft 302.
  • the shaft 301 is rotationally driven by a motor 33 (see FIGS. 1 and 2: not shown in FIG. 9).
  • the shafts 301 and 302 may be integrated.
  • the bearing portion 303 rotatably supports the shafts 301 and 302.
  • the curing unit 4 is fixed to the bearing portion 303.
  • the curing unit 4 has a surface 41 that irradiates light that increases the viscosity of the ink on the (-Z) direction side thereof.
  • a form in which the surface 41 projects in the (—Z) direction near the center of the curing unit 4 in the Y direction is exemplified.
  • the surface 41 irradiates the above-mentioned light on the (—Z) direction side.
  • the contact member 304 is fixed to the bearing portion 303.
  • the contact member 304 approaches the movable portion 353s from the ( ⁇ Y) direction side.
  • the abutting member 304 abuts on the movable portion 353s.
  • the contact member 304 moves the movable portion 353s to the second support portion 332 ( Move in the + Y) direction. In the transfer, the contact member 304 is in contact with the movable portion 353s.
  • FIG. 10 is a top view showing a state in which the contact member 304 does not contact the movable portion 353s.
  • FIG. 11 is a top view showing a state of transfer.
  • the front side of the paper is the (+ Z) direction
  • the downward direction is the (+ Y) direction.
  • only the position of the surface 41 is drawn as a alternate long and short dash line with respect to the curing unit 4 so as to avoid the complexity shown in the figure.
  • the movable portion 353s is in the stop position in a state where the contact member 304 does not abut on the movable portion 353s.
  • the movable portion 353s is moved in the (+ Y) direction with respect to the second support portion 332 by the contact member 304.
  • the shaft 353r and thus the backup roller 353 also move in the (+ Y) direction with respect to the second support portion 332.
  • the above-mentioned light is irradiated from the surface 41 to the side surface 80, and the viscosity of the ink increases.
  • the fact that the backup roller 353 and the shaft 353r are not located between the surface 41 and the side surface 80 in the transfer does not prevent the side surface 80 from being irradiated with light by the surface 41, which in turn increases the viscosity of the ink and is secondary. Contributes to avoiding unnecessary transcription.
  • the work barrel 8 is the object of printing. It is not necessary to print on the entire surface of the bottle 8, and it is sufficient if the side surface 80 in which the bottle 8 exhibits a rotationally symmetric shape is provided as a surface to be printed.
  • the printed surface is preferably cylindrical from the viewpoint that at least a part thereof is held by the backup rollers 351 and 352,353, but it is not necessary that all of the printed surfaces are cylindrical.
  • the side surface 80 has a cylindrical shape is exemplified, but the side surface 80 may have an uneven shape at a height smaller than the thickness of the blanket 32.
  • the bottle holding device 300 holds the bottle 8 to be printed. It is also said that the bottle 8 is to be held by the bottle holding device 300.
  • the bottle holding device 300 includes a first member, a second member, and a third member.
  • the backup rollers 351, 352, 353 in the above description exemplify the first member, the second member, and the third member, respectively.
  • the backup roller 351 is at least partially annular and is mounted around the shaft 351r.
  • the shaft 351r is rotatably supported around its own central axis 1a.
  • the backup roller 351 is rotatable about the central axis 1a, and at least a part thereof exhibits an annular shape centered on the central axis 1a.
  • the backup roller 352 is at least partly annular and is attached around the shaft 352r.
  • the shaft 352r is rotatably supported around its own central axis 2a.
  • the backup roller 352 is rotatable about the central axis 2a, and at least a part thereof exhibits an annular shape centered on the central axis 2a.
  • the backup roller 353 is at least partly annular and is attached around the shaft 353r.
  • the shaft 353r is rotatably supported around its own central axis 3a.
  • the backup roller 353 is rotatable about the central axis 3a, and at least a part thereof exhibits an annular shape centered on the central axis 3a.
  • the side surface 80 has a cylindrical shape at least in a portion held by the backup rollers 351 and 352 and 353.
  • the bottle holding device 300 includes a first holding unit 310.
  • the first holding portion 310 rotatably holds the bottle 8 about the rotation symmetry axis 800 of the side surface 80.
  • the first position where the backup roller 351 abuts on the bottle 8 when viewed along the (-X) direction parallel to the axis of rotational symmetry 800 (hereinafter also referred to as the "first direction"). Is the position 1b where the backup roller 351 comes into contact with the side surface 80.
  • the second position where the backup roller 352 abuts on the bottle 8 is the position 2b where the backup roller 352 abuts on the side surface 80.
  • the third position where the backup roller 353 abuts on the bottle 8 is the position 3b where the backup roller 352 abuts on the side surface 80.
  • the triangle 38 formed by the positions 1b, 2b, and 3b surrounds the axis of rotational symmetry 800. Due to such a positional relationship, the bottle 8 is stably held by the bottle holding device 300.
  • the shaft 353r is rotatably supported with respect to the movable portion 353s about the central axis 3a.
  • the movable portion 353s is movably attached to the second support portion 332 along the (+ Y) direction (hereinafter, also referred to as “second direction”) and the ( ⁇ Y) direction (hereinafter, also referred to as “third direction”). ..
  • the second and third directions are orthogonal to the first direction.
  • the central axis 3r is movable along the second and third directions.
  • the backup roller 353 occupies the position 3b.
  • the rotational symmetry axis 800 is viewed along the first direction. , Deviates from the triangle 39 formed by the positions 1b, 2b, 3c.
  • the position 3c is the position closest to the rotation symmetry axis 800 in the backup roller 353. Due to such a positional relationship, it is easy to take out the bottle 8 from the bottle holding device 300.
  • the bottle 8 when viewed along the first direction, the bottle 8 is taken out from the bottle holding device 300 even if the distance d between the position 2b and the position closest to the position 2b of the backup rollers 353 is wider than a predetermined interval.
  • the predetermined interval is the diameter D of a circle in which the portion of the side surface 80 having a cylindrical shape appears when viewed along the first direction.
  • the circle is also said to be the diameter of the circle defined by the positions 1b, 2b, and 3b.
  • the movable part 353s is urged in the third direction.
  • the movable portion 353s is located at the stop position and the backup roller 353 is located at the position 3b. including.
  • the contact member 304 is adopted for applying an external force to the movable portion 353s.
  • the contact member 304 comes into contact with the movable portion 353s and moves the movable portion 353s in the second direction.
  • an actuator may be used to move the central axis 3a.
  • the printing system 100 can be said to include the blanket 32, the curing unit 4, and the abutting member 304 in addition to the bottle holding device 300.
  • the blanket 32 abuts on the side surface 80 of the bottle 8 that rotates about the axis of rotational symmetry 800, and transfers the ink to the side surface 80.
  • the curing unit 4 is a light source that irradiates the side surface 80 with light that increases the viscosity of the ink.
  • the blanket 32 is provided on the blanket roll 30 together with the blanket body 31.
  • the blanket body 31 is rotationally driven by the shaft 301, and the bearing portion 303 rotatably supports the shaft 301.
  • the curing unit 4 and the contact member 304 are fixed to the bearing portion 303.
  • the bottle holding device 300 is close to the blanket 32 and the curing unit 4.
  • the blanket 32, the curing unit 4, and the contact member 304 are relatively close to the bottle holding device 300 without changing the relative positions of the three.
  • the contact member 304 comes into contact with the movable portion 353s, and an external force along the second direction is applied to the central shaft 3r. Since the backup roller 353 is separated from the position 3b (see FIGS. 6, 8 and 11), the backup roller 353 and the shaft 353r are less likely to block the irradiation of light from the curing unit 4.
  • FIG. 12 is a side view illustrating the configuration of the bottle holding device 300 according to the second embodiment together with the bottle 8 held by the bottle holding device 300.
  • the front side of the paper corresponds to the (+ Y) direction
  • the upward direction corresponds to the (+ Z) direction.
  • FIG. 5 used in the first embodiment a case where the positions of the backup rollers 351 and 352 and 353 in the X direction are substantially equal is exemplified.
  • the bottle holding device 300 according to the second embodiment a case where the positions of the backup rollers 351 and 352 and 353 in the X direction are different from each other is exemplified.
  • any two of the positions 1b, 2b, and 3b exemplified in FIG. 7 have different positions in the first direction from each other.
  • Such an arrangement contributes to equalizing the pressure that the bottle 8 receives from the blanket 32 during transfer in the X direction.
  • the first holding portion 310 is located on one side of the backup rollers 351 and 352 and 353 along the first direction, in this case, on the (-X) direction side. do.
  • Such a positional relationship makes it difficult for the side surface 80 to be urged in a direction non-parallel to the first direction, for example, in the second direction or the third direction during transfer, and the bottle 8 is easily held stably.
  • the one located on the most (-X) direction side is located on the bottom 82 side of the bottle 8 in the X direction.
  • the central axis 1r is parallel to the first direction, and the backup roller 351 is movable in the first direction and the opposite direction along the shaft 351r.
  • the backup roller 351 is arranged at a position farther from the first holding portion 310 than the backup rollers 352 and 353, the bottle holding device 300 can easily hold the bottle 8 even when the height of the bottle 8 is high.
  • the backup roller 351 is arranged between the backup rollers 352 and 353 and the first holding portion 310, for example, near the center between them, so that the bottle holding device 300 can easily hold the bottle 8.
  • the central axes 2r, 3r are parallel to the first direction and the backup rollers 352,353 are in the first direction and vice versa. It may be movable along the direction of.
  • FIG. 13 is a perspective view illustrating the positional relationship between the bottle 8 and the backup rollers 351, 352, 353 when the central axes 1r, 2r, and 3r are not parallel to the rotational symmetry axis 800.
  • the backup rollers 351 and 352 and 353 are provided on the shafts 351r, 352r and 353r, respectively.
  • the shafts 351r, 352r, and 353r are rotatable around the central axes 1r, 2r, and 3r. Even if the side surface 80 rotates about the axis of rotational symmetry 800, the backup rollers 351, 352, 353 abut with the side surface 80 at positions 1b, 2b, and 3b, respectively, as in the first and second embodiments.
  • the backup rollers 351, 352, 353 may not be cylindrical, but may have a truncated cone or a shape in which the truncated cones are united on their bottom surfaces.
  • FIG. 14 is a side view schematically illustrating the positional relationship between the bottle 8, the backup rollers 351 and 352, 353, and the blanket roll 30 during transfer.
  • the front side of the paper corresponds to the (+ X) direction
  • the upward direction corresponds to the (+ Z) direction.
  • the position of the curing unit 4 is different from that of FIG. 6, which shows the same positional relationship.
  • the rotation direction R of the bottle 8 in the transfer is added.
  • the portion 86, the position 3b, the position 1b, and the position 2b of the side surface 80 that come into contact with the blanket 32 are arranged in this order. Light is irradiated from the curing unit 4 to the side surface 80 from the portion 86 to the position 3b in the rotation direction R.
  • the viscosity of the ink transferred at the portion 86 increases due to the light before it comes into contact with the backup roller 353. It is suppressed that the ink is secondarily transferred to any of the backup rollers 351 and 352 and 353.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Coating Apparatus (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

In the present invention, an object to be printed is stably held. This holding device comprises: a first member which is rotatable around a first axis and at least a part of which has an annular shape centered on the first axis; a second member which is rotatable around a second axis and at least a part of which has an annular shape centered on the second axis; a third member which is rotatable around a third axis and at least a part of which has an annular shape centered on the third axis; and a first holding unit that rotatably holds an object around the axis of rotational symmetry of the surface to be printed. Looking along a first direction parallel to the axis of rotational symmetry, a triangle, which is formed by a first position where the first member abuts on the object, a second position where the second member abuts on the object, and a third position where the third member abuts on the object, encloses the axis of rotational symmetry.

Description

保持装置および印刷システムRetention device and printing system
　本願は保持装置および印刷システムに関する。 This application relates to a holding device and a printing system.
　回転対称軸周りに回転対称な形状を有するワークの側面に対して印刷装置を相対的に押し当てて印刷を行う際に、ワークを回転対称軸周りに回転自在に保持するワーク保持装置が、例えば下記の特許文献１において公知である。 For example, a work holding device that rotatably holds the work around the axis of rotational symmetry when the printing device is relatively pressed against the side surface of the work having a shape that is rotationally symmetric about the axis of rotational symmetry to perform printing. It is known in Patent Document 1 below.
　当該ワーク保持装置においては、ワークの側面に当接して回転対称軸周りに回転自在な姿勢のワークを支持するバックアップ部材が複数設けられる場合が例示される。 In the work holding device, there is an example in which a plurality of backup members are provided in contact with the side surface of the work to support the work in a rotatable posture around the axis of rotational symmetry.
　特許文献１で例示された複数のバックアップ部材の位置は、ワークへの転写を行うブランケットによるワークの変位と、重力によるワークの変位とを規制する。 The positions of the plurality of backup members exemplified in Patent Document 1 regulate the displacement of the work by the blanket that transfers to the work and the displacement of the work by gravity.
特開２０２０－８２６０５号公報Japanese Unexamined Patent Publication No. 2020-82605
　転写の際に限らず、ワークの変位は抑制されることが望まれる。本願に開示される保持装置および印刷システムは、印刷の対象を安定して保持することを目的とする。 It is desirable that the displacement of the work is suppressed not only during transfer. The holding device and printing system disclosed in the present application are intended to stably hold an object to be printed.
　保持装置は、回転対称の形状を呈する被印刷面を有する対象を保持する。当該保持装置は、第１軸を中心として回転自在であって、少なくとも一部が前記第１軸を中心とする円環状を呈する第１部材と、第２軸を中心として回転自在であって、少なくとも一部が前記第２軸を中心とする円環状を呈する第２部材と、第３軸を中心として回転自在であって、少なくとも一部が前記第３軸を中心とする円環状を呈する第３部材と前記被印刷面の回転対称軸を中心として回転自在に前記対象を保持する第１保持部とを備える。前記回転対称軸に平行な第１方向に沿って見て、前記第１部材が前記対象と当接する第１位置と、前記第２部材が前記対象と当接する第２位置と、前記第３部材が前記対象と当接する第３位置とが形成する三角形は前記回転対称軸を囲む。 The holding device holds an object having a surface to be printed having a rotationally symmetric shape. The holding device is rotatable about the first axis, and at least a part thereof is rotatable around the first axis and a first member having an annular shape centered on the first axis. A second member that exhibits an annular shape centered on the second axis at least in part, and a second member that is rotatable around the third axis and at least a part thereof exhibits an annular shape centered on the third axis. It includes three members and a first holding portion that rotatably holds the object about the axis of rotational symmetry of the surface to be printed. When viewed along the first direction parallel to the axis of rotational symmetry, the first position where the first member abuts on the object, the second position where the second member abuts on the object, and the third member. The triangle formed by the third position in contact with the object surrounds the axis of rotational symmetry.
　保持装置において対象が安定して保持される。 The target is stably held in the holding device.
印刷システムの構成を概略的に例示する模式図である。It is a schematic diagram which schematically exemplifies the configuration of a printing system. 印刷システムの構成を概略的に例示する模式図である。It is a schematic diagram which schematically exemplifies the configuration of a printing system. 印刷システムを制御する制御系統を模式的に示すブロック図である。It is a block diagram which shows typically the control system which controls a printing system. 実施の形態１にかかるボトル保持装置の構成を例示する上面図である。It is a top view which illustrates the structure of the bottle holding device which concerns on Embodiment 1. FIG. 実施の形態１にかかるボトル保持装置の構成を例示する側面図である。It is a side view which illustrates the structure of the bottle holding device which concerns on Embodiment 1. FIG. 転写の際におけるボトルとバックアップローラとの位置関係を模式的に例示する側面図である。It is a side view which schematically exemplifies the positional relationship between a bottle and a backup roller at the time of transfer. ボトルとバックアップローラとの位置関係を模式的に例示する側面図である。It is a side view which schematically exemplifies the positional relationship between a bottle and a backup roller. ボトルとバックアップローラとの位置関係を模式的に例示する側面図である。It is a side view which schematically exemplifies the positional relationship between a bottle and a backup roller. ブランケットロールおよび硬化ユニットを例示する斜視図である。FIG. 3 is a perspective view illustrating a blanket roll and a curing unit. 当接部材が可動部に当接しない状態を示す上面図である。It is a top view which shows the state which a contact member does not come into contact with a movable part. 転写の状態を示す上面図である。It is a top view which shows the state of transfer. 実施の形態２にかかるボトル保持装置の構成を例示する側面図である。It is a side view which illustrates the structure of the bottle holding device which concerns on Embodiment 2. FIG. ボトルとバックアップローラとの位置関係を例示する斜視図である。It is a perspective view which illustrates the positional relationship between a bottle and a backup roller. 転写の際におけるボトルとバックアップローラと、ブランケットロールとの位置関係を模式的に例示する側面図である。It is a side view which schematically exemplifies the positional relationship between a bottle, a backup roller, and a blanket roll at the time of transfer.
　以下、添付される図面が参照されつつ実施の形態について説明される。なお、図面は概略的に示されるものであり、説明の便宜のため、適宜、構成の省略および構成の簡略化がなされるものである。また、図面に示される構成の大きさおよび位置の相互関係は、必ずしも正確に記載されるものではなく、適宜変更され得るものである。 Hereinafter, embodiments will be described with reference to the attached drawings. It should be noted that the drawings are shown schematically, and for convenience of explanation, the configuration is omitted and the configuration is simplified as appropriate. Further, the interrelationship between the sizes and positions of the configurations shown in the drawings is not always accurately described and can be changed as appropriate.
　また、以下に示される説明では、同様の構成要素には同じ符号が付されて図示され、それらの名称と機能とについても同様である。したがって、それらについての詳細な説明は、重複を避けるために省略される場合がある。 Further, in the description shown below, similar components are illustrated with the same reference numerals, and their names and functions are also the same. Therefore, detailed description of them may be omitted to avoid duplication.
　また、以下に記載される説明において、「第１」または「第２」などの序数が用いられる場合があっても、これらの用語は、実施の形態の内容を理解することを容易にするために便宜上用いられるものであり、これらの序数によって生じ得る順序などを限定しない。 Further, even if ordinal numbers such as "first" or "second" may be used in the description described below, these terms are used to facilitate understanding of the contents of the embodiments. It is used for convenience, and does not limit the order that can occur due to these ordinal numbers.
　相対的または絶対的な位置関係を示す表現（例えば「一方向に」「一方向に沿って」「平行」「直交」「中心」「同心」「同軸」など）は、特に断らない限り、その位置関係を厳密に表すのみならず、公差もしくは同程度の機能が得られる範囲で相対的に角度または距離に関して変位された状態も表す。等しい状態であることを示す表現（例えば「同一」「等しい」「均質」など）は、特に断らない限り、定量的に厳密に等しい状態を表すのみならず、公差もしくは同程度の機能が得られる差が存在する状態も表す。形状を示す表現（例えば、「四角形状」または「円筒形状」など）は、特に断らない限り、幾何学的に厳密にその形状を表すのみならず、同程度の効果が得られる範囲で、例えば凹凸や面取りなどを有する形状も表す。一の構成要素を「備える」「具える」「具備する」「含む」または「有する」という表現は、他の構成要素の存在を除外する排他的表現ではない。「Ａ，ＢおよびＣの少なくともいずれか一つ」という表現は、Ａのみ、Ｂのみ、Ｃのみ、Ａ，ＢおよびＣのうち任意の２つ、ならびに、Ａ，ＢおよびＣの全てを含む。 Expressions that indicate relative or absolute positional relationships (for example, "in one direction", "along one direction", "parallel", "orthogonal", "center", "concentric", "coaxial", etc.) are not specified. Not only does it represent the positional relationship exactly, but it also represents the state of being displaced relative to the angle or distance within the range where tolerances or similar functions can be obtained. Expressions indicating equality (eg, "same", "equal", "homogeneous", etc.) not only represent quantitatively exactly equal states, but also provide tolerance or similar functionality, unless otherwise noted. It also represents the state in which there is a difference. Unless otherwise specified, the expression indicating the shape (for example, "square shape" or "cylindrical shape") not only expresses the shape strictly geometrically, but also, for example, to the extent that the same effect can be obtained. It also represents a shape with irregularities and chamfers. The expressions "equipped", "equipped", "equipped", "included", or "have" one component are not exclusive expressions that exclude the existence of other components. The expression "at least one of A, B and C" includes A only, B only, C only, any two of A, B and C, and all of A, B and C.
　［全体的な構成の説明］
　図１および図２のいずれも、印刷システム１００の構成を概略的に例示する模式図である。後の実施の形態にかかるボトル保持装置は、印刷システム１００に採用可能である。 [Explanation of the overall configuration]
Both FIGS. 1 and 2 are schematic views schematically illustrating the configuration of the printing system 100. The bottle holding device according to the later embodiment can be adopted in the printing system 100.
　印刷システム１００はワークの側面に印刷を行う。ワークは回転対称の形状を呈する側面を有する物品である。印刷システム１００において、当該側面の回転対称の軸（以下「回転対称軸」）を軸としてワークが回転し、当該側面に印刷が施される。 The printing system 100 prints on the side surface of the work. The work is an article having a side surface having a rotationally symmetric shape. In the printing system 100, the work rotates about the axis of rotational symmetry of the side surface (hereinafter referred to as "rotational symmetry axis"), and printing is performed on the side surface.
　ワークは例えばガラス製あるいは例えばポリエチレンテレフタレート（ＰＥＴ）を主材料とした樹脂製の容器である。図１においてワークとしてボトル８が例示され、ワークの側面としてボトル８の側面８０が例示される。 The work is, for example, a container made of glass or a resin made of, for example, polyethylene terephthalate (PET) as a main material. In FIG. 1, a bottle 8 is exemplified as a work, and a side surface 80 of the bottle 8 is exemplified as a side surface of the work.
　ボトル８はボトル保持装置３００に保持される。ボトル保持装置３００の詳細な構成は後に実施の形態において詳述される。ボトル８はワークの一例であり、ボトル保持装置３００はワーク保持装置として機能する。 The bottle 8 is held by the bottle holding device 300. The detailed configuration of the bottle holding device 300 will be described in detail later in the embodiment. The bottle 8 is an example of a work, and the bottle holding device 300 functions as a work holding device.
　以下の説明において方向を統一的に示すために、図１に示すようにＸＹＺ直交座標系が設定される。例えば（－Ｚ）方向が鉛直下向きに設定され、ＸＹ平面が水平面に設定される。例えばＸＹＺ直交座標系にはいわゆる右手系の座標系が設定される。以下の各図において構成要素の近傍に付された点線矢印は、当該構成要素の動きを示す。 The XYZ Cartesian coordinate system is set as shown in FIG. 1 in order to show the directions in a unified manner in the following description. For example, the (-Z) direction is set vertically downward, and the XY plane is set to the horizontal plane. For example, a so-called right-handed coordinate system is set in the XYZ Cartesian coordinate system. In each of the following figures, the dotted arrow attached in the vicinity of the component indicates the movement of the component.
　印刷システム１００は少なくとも一つの印刷装置１０１を備える。印刷装置１０１は側面８０に、例えば単色印刷を行う。印刷システム１００に印刷装置１０１が複数設けられ、それぞれの印刷装置１０１が互いに異なる色の単色印刷を行って、多色印刷（二色印刷を含む；以下同様）が実現される。簡単のため、以下では主として一つの印刷装置１０１が印刷システム１００に備えられる場合について説明される。 The printing system 100 includes at least one printing device 101. The printing apparatus 101 prints, for example, a single color on the side surface 80. A plurality of printing devices 101 are provided in the printing system 100, and each printing device 101 performs single-color printing of different colors to realize multi-color printing (including two-color printing; the same applies hereinafter). For the sake of simplicity, the case where one printing apparatus 101 is mainly provided in the printing system 100 will be described below.
　印刷装置１０１のそれぞれは、版ステージユニット１、インク充填ユニット２、転写ユニット３および硬化ユニット４を備えている。これらの各ユニットは、（－Ｙ）方向側から（＋Ｙ）方向側に向けて上記の順番で並べて配置される。 Each of the printing devices 101 includes a plate stage unit 1, an ink filling unit 2, a transfer unit 3, and a curing unit 4. Each of these units is arranged side by side in the above order from the (−Y) direction side to the (+ Y) direction side.
　ボトル８はボトル保持装置３００で保持された状態で転写ユニット３および硬化ユニット４へ近接したり、離隔したりする（図１の右側の点線矢印）。図１はボトル８がボトル保持装置３００で保持された状態で転写ユニット３および硬化ユニット４から離隔した状態を示す。図２はボトル８がボトル保持装置３００で保持された状態で転写ユニット３および硬化ユニット４に近接した状態を示す。 The bottle 8 is held by the bottle holding device 300 and is moved toward or separated from the transfer unit 3 and the curing unit 4 (dotted arrow on the right side of FIG. 1). FIG. 1 shows a state in which the bottle 8 is held by the bottle holding device 300 and separated from the transfer unit 3 and the curing unit 4. FIG. 2 shows a state in which the bottle 8 is held by the bottle holding device 300 and is close to the transfer unit 3 and the curing unit 4.
　印刷装置１０１が複数設けられる場合には、それぞれの印刷装置１０１における上記の近接および離隔の他、ボトル保持装置３００で保持されたボトル８が複数の印刷装置１０１の間を移動する。 When a plurality of printing devices 101 are provided, in addition to the above-mentioned proximity and separation in each printing device 101, the bottle 8 held by the bottle holding device 300 moves between the plurality of printing devices 101.
　一つの印刷装置１０１においては、
（ｉ）版ステージユニット１およびインク充填ユニット２による光硬化性インクを用いたインクパターンの形成、
（ｉｉ）インクパターンの転写ユニット３への転写、
（ｉｉｉ）インクパターンの転写ユニット３から側面８０への転写、
（ｉｖ）硬化ユニット４からの光照射によるインクの硬化、
の各工程を含む単色印刷が実行される。 In one printing apparatus 101,
(I) Formation of an ink pattern using photocurable ink by the plate stage unit 1 and the ink filling unit 2.
(Ii) Transfer of the ink pattern to the transfer unit 3,
(Iii) Transfer of the ink pattern from the transfer unit 3 to the side surface 80,
(Iv) Curing of ink by irradiation with light from the curing unit 4,
Single-color printing including each step of is executed.
　ボトル保持装置３００におけるボトル８は、側面８０の回転対称軸を中心として回転自在に保持される。上記（ｉ）～（ｉｖ）のいずれの工程もボトル８がボトル保持装置３００に保持された状態で実行される。上記（ｉ），（ｉｉ）の工程は、例えばボトル８が転写ユニット３および硬化ユニット４から離隔した状態（図１参照）、あるいは複数の印刷装置１０１同士の間を移動する間において実行される。上記（ｉｉｉ），（ｉｖ）の工程は、ボトル８が転写ユニット３および硬化ユニット４に近接した状態（図２参照）において実行される。 The bottle 8 in the bottle holding device 300 is rotatably held around the axis of rotational symmetry of the side surface 80. Each of the above steps (i) to (iv) is executed in a state where the bottle 8 is held by the bottle holding device 300. The steps (i) and (ii) are executed, for example, in a state where the bottle 8 is separated from the transfer unit 3 and the curing unit 4 (see FIG. 1), or while moving between the plurality of printing devices 101. .. The steps (iii) and (iv) are performed in a state where the bottle 8 is close to the transfer unit 3 and the curing unit 4 (see FIG. 2).
　印刷装置１０１が複数設けられるときには、全ての印刷装置１０１において上記（ｉ）～（ｉｖ）の工程が実行された後、ボトル８がボトル保持装置３００に保持された状態において、（ｖ）インクを更に硬化させる処理が実行される。この場合、工程（ｉｖ）におけるインクの硬化は単色印刷毎の一時的な硬化として実行される。 When a plurality of printing devices 101 are provided, (v) ink is applied while the bottle 8 is held by the bottle holding device 300 after the steps (i) to (iv) are executed in all the printing devices 101. Further curing is performed. In this case, the curing of the ink in the step (iv) is performed as a temporary curing for each monochrome printing.
　印刷済のボトル８はボトル保持装置３００から取り外され、その後に、印刷されるべきボトル８がボトル保持装置３００に装着される。 The printed bottle 8 is removed from the bottle holding device 300, and then the bottle 8 to be printed is attached to the bottle holding device 300.
　ボトル保持装置３００に対するボトル８の装着および取り外しは、印刷装置１０１から離れた位置において行われる。例えば当該装着および取り外しは、オペレータによる手動作業によって行われる。 The bottle 8 is attached to and detached from the bottle holding device 300 at a position away from the printing device 101. For example, the attachment and detachment is performed manually by an operator.
　版ステージユニット１は、ステージ１１および版１２を備える。ステージ１１は版１２を（＋Ｚ）方向側において載置する。版１２はインクパターンを形成するための版（例えば凹版）である。ステージ１１はＸＹＺ方向のいずれの方向にも、更にＺ軸周りの回転方向にも移動される。かかる移動には例えばクロスローラベアリング機構が利用される。 The version stage unit 1 includes a stage 11 and a version 12. The stage 11 places the plate 12 on the (+ Z) direction side. The plate 12 is a plate (for example, an intaglio) for forming an ink pattern. The stage 11 is moved in any direction in the XYZ direction and further in the rotation direction around the Z axis. For example, a cross roller bearing mechanism is used for such movement.
　ステージ１１は、インク充填ユニット２および転写ユニット３から見て（－Ｙ）方向側の位置から（＋Ｙ）方向に可動であって、インク充填ユニット２を経由して転写ユニット３に近接する（図１の左側の点線矢印）。ステージ１１は（－Ｙ）方向に可動であってインク充填ユニット２を経由して転写ユニット３から離隔する（図１の左側の点線矢印）。 The stage 11 is movable in the (+ Y) direction from the position on the (−Y) direction side when viewed from the ink filling unit 2 and the transfer unit 3, and is close to the transfer unit 3 via the ink filling unit 2 (FIG. Dotted arrow on the left side of 1). The stage 11 is movable in the (-Y) direction and is separated from the transfer unit 3 via the ink filling unit 2 (dotted arrow on the left side of FIG. 1).
　インク充填ユニット２は、ノズル２１およびインク供給部２２を備える。インク供給部２２はノズル２１へ光硬化性インク（以下、単に「インク」ということがある）を供給する。 The ink filling unit 2 includes a nozzle 21 and an ink supply unit 22. The ink supply unit 22 supplies photocurable ink (hereinafter, may be simply referred to as “ink”) to the nozzle 21.
　光硬化性インクは例えば、顕色剤としての顔料、重合により強固なポリマー層を構成するポリマー材料（モノマーおよびオリゴマーの少なくとも一方を含む）、および光照射を受けて化学変化することで生じる活性種によりポリマー材料の重合反応を促進する光重合開始剤を含む。 The photocurable ink is, for example, a pigment as a color developer, a polymer material (including at least one of a monomer and an oligomer) that constitutes a strong polymer layer by polymerization, and an active species generated by chemical change upon exposure to light. Contains a photopolymerization initiator that accelerates the polymerization reaction of the polymer material.
　ステージ１１が（＋Ｙ）方向に移動してノズル２１が版１２とＺ方向において対向する際、ノズル２１へ供給されたインクはノズル２１の下端に設けられた吐出口から吐出され、版１２の（＋Ｚ）方向側の面（以下「上面」と仮称される）に塗布される。 When the stage 11 moves in the (+ Y) direction and the nozzle 21 faces the plate 12 in the Z direction, the ink supplied to the nozzle 21 is ejected from the ejection port provided at the lower end of the nozzle 21 and the plate 12 ( It is applied to the surface on the + Z) direction side (hereinafter, tentatively referred to as "upper surface").
　例えば版１２が凹版である場合、不図示のドクターブレードによって版１２の上面が擦られる。これにより版１２の凹部にインクが充填され、凹部以外のインクが除去され、版１２にインクパターンが形成される。 For example, when the plate 12 is an intaglio, the upper surface of the plate 12 is rubbed by a doctor blade (not shown). As a result, the concave portion of the plate 12 is filled with ink, the ink other than the concave portion is removed, and an ink pattern is formed on the plate 12.
　インクパターンが形成された版１２は、更に（＋Ｙ）方向に移動して転写ユニット３に近接する。 The plate 12 on which the ink pattern is formed further moves in the (+ Y) direction and approaches the transfer unit 3.
　転写ユニット３は、ブランケットロール３０とモータ３３とを備える。モータ３３はブランケットロール３０を回転させる。ブランケットロール３０はブランケット胴３１とブランケット３２とを有する。例えばブランケット胴３１は金属製の円筒である。ブランケット３２はブランケット胴３１の表面に巻き付けられる。ブランケット３２は円筒状の形状を有する。ブランケットロール３０は、図１および図２において一点鎖線で示される回転軸を中心として回転自在に支持される。 The transfer unit 3 includes a blanket roll 30 and a motor 33. The motor 33 rotates the blanket roll 30. The blanket roll 30 has a blanket body 31 and a blanket 32. For example, the blanket body 31 is a metal cylinder. The blanket 32 is wrapped around the surface of the blanket body 31. The blanket 32 has a cylindrical shape. The blanket roll 30 is rotatably supported around the axis of rotation shown by the alternate long and short dash line in FIGS. 1 and 2.
　ブランケット３２の表面はインクを担持可能である。ステージ１１が（＋Ｙ）方向に移動してブランケットロール３０が版１２とＺ方向において対向する際、ブランケット３２の表面が版１２の上面に当接する。版１２に形成されたインクパターンはブランケット３２の表面に移行する。かかる移行は、以下ではインクパターンがブランケット３２に受理される、とも表現される。 The surface of the blanket 32 can carry ink. When the stage 11 moves in the (+ Y) direction and the blanket roll 30 faces the plate 12 in the Z direction, the surface of the blanket 32 comes into contact with the upper surface of the plate 12. The ink pattern formed on the plate 12 is transferred to the surface of the blanket 32. Such a transition is also described below as the ink pattern being accepted by the blanket 32.
　ボトル８が転写ユニット３に近接し、側面８０がブランケット３２に当接し、ブランケット３２と側面８０とは当接しつつ互いに反対方向に回転する。これにより、ブランケット３２に受理されたインクパターンは側面８０に転写される。側面８０に生じ得る凹凸の高さが、ブランケット３２の厚さよりも小さいことは、かかる転写の観点から望ましい。 The bottle 8 is close to the transfer unit 3, the side surface 80 is in contact with the blanket 32, and the blanket 32 and the side surface 80 are in contact with each other and rotate in opposite directions. As a result, the ink pattern received by the blanket 32 is transferred to the side surface 80. It is desirable from the viewpoint of such transfer that the height of the unevenness that may occur on the side surface 80 is smaller than the thickness of the blanket 32.
　ブランケット３２は、側面８０に転写されるインクパターンを一時的に担持する中間転写体として機能する。ブランケット３２は弾性を有する樹脂材料、例えばシリコン樹脂で形成される。 The blanket 32 functions as an intermediate transfer body that temporarily supports the ink pattern transferred to the side surface 80. The blanket 32 is made of an elastic resin material, such as a silicone resin.
　かかる転写においてボトル８が１周以上回転する場合、側面８０のインクパターンがブランケット３２へ転写されてしまうこと（以下「逆転写」と仮称される）が想定される。逆転写は側面８０のインクパターンを乱す。逆転写が低減されるべく側面８０に転写されたインクの粘度が、例えば以下の様にして増大される。 When the bottle 8 rotates one or more turns in such transfer, it is assumed that the ink pattern on the side surface 80 is transferred to the blanket 32 (hereinafter, tentatively referred to as "reverse transfer"). Reverse transfer disturbs the ink pattern on the side surface 80. The viscosity of the ink transferred to the side surface 80 to reduce reverse transfer is increased, for example, as follows.
　ブランケット３２からインクパターンの転写を受けた直後の側面８０に向けて、硬化ユニット４から光（紫外線）が照射される。例えば印刷システム１００に印刷装置１０１が複数設けられる場合には、インクに含まれるポリマー材料の一部を重合させてインクの粘度を増大させるが、インク全体を硬化させるには至らない条件で、硬化ユニット４から光（紫外線）が照射される。単色印刷の場合には、インク全体を硬化させる条件で、硬化ユニット４から光が照射される。かかる条件は例えば当該光の強度によって設定される。 Light (ultraviolet rays) is irradiated from the curing unit 4 toward the side surface 80 immediately after receiving the transfer of the ink pattern from the blanket 32. For example, when a plurality of printing devices 101 are provided in the printing system 100, a part of the polymer material contained in the ink is polymerized to increase the viscosity of the ink, but the ink is cured under conditions that do not cure the entire ink. Light (ultraviolet rays) is emitted from the unit 4. In the case of monochromatic printing, light is emitted from the curing unit 4 under the condition that the entire ink is cured. Such conditions are set, for example, by the intensity of the light.
　インクの粘度が増大することで側面８０からブランケット３２への付着性が低下し、逆転写が低減される。かかる付着性の低下は、ボトル保持装置３００の汚染を回避する観点でも望ましい。 As the viscosity of the ink increases, the adhesiveness from the side surface 80 to the blanket 32 decreases, and the reverse transfer is reduced. Such a decrease in adhesiveness is also desirable from the viewpoint of avoiding contamination of the bottle holding device 300.
　図３は印刷システム１００を制御する制御系統を模式的に示すブロック図である。図３において矢印は、その矢尻側のブロックで示される要素が矢頭側のブロックで示される要素を、機械的に駆動もしくは制御することを示す。 FIG. 3 is a block diagram schematically showing a control system that controls the printing system 100. In FIG. 3, the arrow indicates that the element indicated by the block on the arrowhead side mechanically drives or controls the element indicated by the block on the arrowhead side.
　ステージ移動装置４０１（図１および図２において不図示）は、ステージ１１を（＋Ｙ）方向および（－Ｙ）方向に移動させる。モータ駆動回路４０２（図１および図２において不図示）は、モータ３３の駆動を制御する。モータ３３はブランケットロール３０を回転させる。ボトル搬送装置４０３（図１および図２において不図示）は、ボトル保持装置３００を、転写ユニット３および硬化ユニット４に対して近接あるいは離隔させる。印刷システム１００に複数の印刷装置１０１が設けられる場合には、それらの間におけるボトル保持装置３００の移動も、ボトル搬送装置４０３が行う。 The stage moving device 401 (not shown in FIGS. 1 and 2) moves the stage 11 in the (+ Y) direction and the (−Y) direction. The motor drive circuit 402 (not shown in FIGS. 1 and 2) controls the drive of the motor 33. The motor 33 rotates the blanket roll 30. The bottle transfer device 403 (not shown in FIGS. 1 and 2) brings the bottle holding device 300 closer to or further from the transfer unit 3 and the curing unit 4. When the printing system 100 is provided with a plurality of printing devices 101, the bottle transfer device 403 also moves the bottle holding device 300 between them.
　制御装置９は、ＣＰＵ(Central Processing Unit)等のプロセッサ、ＲＡＭ(Random Access Memory)やＲＯＭ(Read Only Memory)等の記憶装置を含む電子回路で構成される。制御装置９は、ステージ移動装置４０１、モータ駆動回路４０２、ボトル搬送装置４０３、インク供給部２２、硬化ユニット４の動作を統合的に制御する。 The control device 9 is composed of an electronic circuit including a processor such as a CPU (Central Processing Unit) and a storage device such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The control device 9 integrally controls the operations of the stage moving device 401, the motor drive circuit 402, the bottle transfer device 403, the ink supply unit 22, and the curing unit 4.
　制御装置９は例えばステージ移動装置４０１とインク供給部２２との動作を制御し、版１２におけるインクパターンが得られる。制御装置９は例えばステージ移動装置４０１とモータ駆動回路４０２との動作を制御し、ブランケット３２にインクパターンを受理させる。制御装置９は例えばボトル保持装置３００とモータ駆動回路４０２との動作を制御し、ブランケット３２から側面８０への転写が実現される。 The control device 9 controls the operation of, for example, the stage moving device 401 and the ink supply unit 22, and the ink pattern in the plate 12 can be obtained. The control device 9 controls, for example, the operation of the stage moving device 401 and the motor drive circuit 402, and causes the blanket 32 to accept the ink pattern. The control device 9 controls the operation of, for example, the bottle holding device 300 and the motor drive circuit 402, and transfer from the blanket 32 to the side surface 80 is realized.
　［実施の形態１］
　図４は実施の形態１にかかるボトル保持装置３００の構成を、ボトル保持装置３００に保持されたボトル８と共に例示する上面図である。図４において紙面手前向きが（＋Ｚ）方向に対応し、下向きが（＋Ｙ）方向に対応する。 [Embodiment 1]
FIG. 4 is a top view illustrating the configuration of the bottle holding device 300 according to the first embodiment together with the bottle 8 held by the bottle holding device 300. In FIG. 4, the front side of the paper corresponds to the (+ Z) direction, and the downward direction corresponds to the (+ Y) direction.
　図５は実施の形態１にかかるボトル保持装置３００の構成を、ボトル保持装置３００に保持されたボトル８と共に例示する側面図である。図５において紙面手前向きが（＋Ｙ）方向に対応し、上向きが（＋Ｚ）方向に対応する。 FIG. 5 is a side view illustrating the configuration of the bottle holding device 300 according to the first embodiment together with the bottle 8 held by the bottle holding device 300. In FIG. 5, the front side of the paper corresponds to the (+ Y) direction, and the upward direction corresponds to the (+ Z) direction.
　側面８０は回転対称軸８００に関して回転対称の形状を有する。本実施の形態では側面８０が円筒形状を有する場合が例となって説明される。 The side surface 80 has a rotationally symmetric shape with respect to the rotationally symmetric axis 800. In the present embodiment, the case where the side surface 80 has a cylindrical shape will be described as an example.
　ボトル８は口元部８１と底部８２とを有する。口元部８１と底部８２とは回転対称軸８００に平行な方向において対向する。口元部８１を介してボトル８の外部から内部へと液体が注ぎ込まれ、あるいはボトル８の内部から外部へと液体が注ぎ出される。当該液体として飲料物および化粧品が例示される。 The bottle 8 has a mouth portion 81 and a bottom portion 82. The mouth portion 81 and the bottom portion 82 face each other in a direction parallel to the axis of rotational symmetry 800. The liquid is poured from the outside to the inside of the bottle 8 through the mouth portion 81, or the liquid is poured from the inside to the outside of the bottle 8. Beverages and cosmetics are exemplified as the liquid.
　口元部８１にはボトルキャップ（図示省略）が着脱可能である。ボトル保持装置３００は、ボトルキャップを外した状態でボトル８を保持する構成を有する。 A bottle cap (not shown) can be attached to and detached from the mouth 81. The bottle holding device 300 has a configuration for holding the bottle 8 with the bottle cap removed.
　ボトル保持装置３００は第１保持部３１０と、第２保持部３２０と、保持本体部３３０とを有する。第１保持部３１０は軸３０９を回転軸として回転自在に口元部８１を保持する。第２保持部３２０は軸３０９を回転の中心として回転自在に底部８２を保持する。第１保持部３１０が軸３０９を回転軸として口元部８１を回転駆動し、第２保持部３２０が軸３０９を回転軸として底部８２を回転駆動してもよい。 The bottle holding device 300 has a first holding portion 310, a second holding portion 320, and a holding main body portion 330. The first holding portion 310 rotatably holds the mouth portion 81 with the shaft 309 as a rotation axis. The second holding portion 320 rotatably holds the bottom portion 82 with the shaft 309 as the center of rotation. The first holding portion 310 may rotationally drive the mouth portion 81 with the shaft 309 as the rotating shaft, and the second holding portion 320 may rotationally drive the bottom portion 82 with the shaft 309 as the rotating shaft.
　回転対称軸８００が軸３０９と一致してボトル８がボトル保持装置３００に保持されることにより、側面８０は回転対称軸８００の周りで回転する。第１保持部３１０は回転対称軸８００を中心として回転自在にボトル８を保持する。図４および図５による例示においては軸３０９はＸ方向に平行である。図４および図５による例示においては、口元部８１が底部８２に対して（＋Ｘ）方向側に位置して、ボトル８がボトル保持装置３００に保持される。 The side surface 80 rotates around the rotation symmetry axis 800 because the rotation symmetry axis 800 coincides with the axis 309 and the bottle 8 is held by the bottle holding device 300. The first holding portion 310 rotatably holds the bottle 8 about the axis of rotational symmetry 800. In the illustrations shown in FIGS. 4 and 5, the axis 309 is parallel to the X direction. In the illustration according to FIGS. 4 and 5, the mouth portion 81 is located on the (+ X) direction side with respect to the bottom portion 82, and the bottle 8 is held by the bottle holding device 300.
　保持本体部３３０は第１支持部３３１と、第２支持部３３２と、基台３３３とを有する。基台３３３はＺ方向に垂直な平板状の形状を有する。第１支持部３３１は、（＋Ｘ）方向側で基台３３３から（＋Ｚ）方向に立設されている。第２支持部３３２は、第１支持部３３１から（－Ｘ）方向に所定間隔で離間した位置で、基台３３３から（＋Ｚ）方向に立設されている。当該所定間隔は、ボトル８の高さ（図４においてはボトル８のＸ方向に沿った長さ）よりも広い。 The holding main body portion 330 has a first support portion 331, a second support portion 332, and a base 333. The base 333 has a flat plate shape perpendicular to the Z direction. The first support portion 331 is erected in the (+ Z) direction from the base 333 on the (+ X) direction side. The second support portion 332 is erected in the (+ Z) direction from the base 333 at a position separated from the first support portion 331 in the (-X) direction at predetermined intervals. The predetermined interval is wider than the height of the bottle 8 (the length of the bottle 8 along the X direction in FIG. 4).
　第１保持部３１０はシャフト３１１と、口元保持部材３１３と、摘み部材３１４とを有する。シャフト３１１はＸ方向に平行である。シャフト３１１は第１支持部３３１に対して、シャフト３１１自身の中心軸が軸３０９と一致して、当該中心軸を中心として回転自在に軸支される。 The first holding portion 310 has a shaft 311, a mouth holding member 313, and a picking member 314. The shaft 311 is parallel to the X direction. The shaft 311 is rotatably supported with respect to the first support portion 331 so that the central axis of the shaft 311 itself coincides with the shaft 309 and is centered on the central axis.
　口元保持部材３１３はシャフト３１１の（＋Ｘ）方向側の端部に設けられる。摘み部材３１４はシャフト３１１の（－Ｘ）方向側の端部に設けられる。 The mouth holding member 313 is provided at the end of the shaft 311 on the (+ X) direction side. The knob member 314 is provided at the end of the shaft 311 on the (-X) direction side.
　例えば口元部８１の外周には雄ねじ８３が形成され、口元保持部材３１３の内側には雌ねじが形成される。雄ねじ８３と当該雌ねじとは互いに螺合する形状を有し、口元部８１は口元保持部材３１３と螺合するといえる。 For example, a male screw 83 is formed on the outer circumference of the mouth portion 81, and a female screw is formed on the inside of the mouth holding member 313. It can be said that the male screw 83 and the female screw have a shape of being screwed into each other, and the mouth portion 81 is screwed with the mouth holding member 313.
　口元部８１と口元保持部材３１３とが連結されていない状態において、オペレータはボトル８を保持してボトル８の回転を規制しながら、口元部８１と口元保持部材３１３とが互いに螺合する方向へ、摘み部材３１４を回転させる。当該回転によって口元部８１と口元保持部材３１３とが螺合する。当該螺合によって口元部８１と口元保持部材３１３とが連結される。当該連結によってシャフト３１１とボトル８とがＸ方向において連結される。 In a state where the mouth portion 81 and the mouth holding member 313 are not connected, the operator holds the bottle 8 and restricts the rotation of the bottle 8, and the mouth portion 81 and the mouth holding member 313 are screwed to each other. , The picking member 314 is rotated. The rotation causes the mouth portion 81 and the mouth holding member 313 to be screwed together. The mouth portion 81 and the mouth holding member 313 are connected by the screwing. By this connection, the shaft 311 and the bottle 8 are connected in the X direction.
　シャフト３１１とボトル８とが連結された状態において、オペレータがボトル８の回転を規制しながら摘み部材３１４を、雄ねじ８３と当該雌ねじとの螺合を解除する方向へ回転させる。かかる回転により、口元部８１から口元保持部材３１３が取り外され、シャフト３１１とボトル８との間の連結が解除される。 In a state where the shaft 311 and the bottle 8 are connected, the operator rotates the knob member 314 in the direction of releasing the screw between the male screw 83 and the female screw while restricting the rotation of the bottle 8. By such rotation, the mouth holding member 313 is removed from the mouth portion 81, and the connection between the shaft 311 and the bottle 8 is released.
　口元保持部材３１３によって口元部８１を保持する構成は、ねじの螺合を利用する構成に限定されない。例えば口元保持部材３１３が複数の部材で口元部８１を保持する構成が採用されてもよい。 The configuration in which the mouth portion 81 is held by the mouth holding member 313 is not limited to the configuration using screw screwing. For example, a configuration may be adopted in which the mouth holding member 313 holds the mouth portion 81 with a plurality of members.
　第２保持部３２０はＸ方向に延設されたシャフト３２１と、押圧部材３２２と、付勢部材３２３と、摘み部材３２４とを有する。シャフト３２１は第２支持部３３２に対して、シャフト３２１自身の中心軸が軸３０９と一致して、当該中心軸を中心として回転自在に軸支される。 The second holding portion 320 has a shaft 321 extended in the X direction, a pressing member 322, an urging member 323, and a picking member 324. The shaft 321 is rotatably supported with respect to the second support portion 332 so that the central axis of the shaft 321 itself coincides with the shaft 309 and is centered on the central axis.
　押圧部材３２２はシャフト３２１の（－Ｘ）方向側の端部に設けられる。摘み部材３２４はシャフト３２１の（＋Ｘ）方向側の端部に設けられる。 The pressing member 322 is provided at the end of the shaft 321 on the (-X) direction side. The knob member 324 is provided at the end of the shaft 321 on the (+ X) direction side.
　押圧部材３２２は、ボトル８がボトル保持装置３００に保持される際に、底部８２に対して（－Ｘ）方向側から当接する。回転対称軸８００が軸３０９と一致してボトル８が配置され、口元部８１と口元保持部材３１３とが連結した状態で、押圧部材３２２が底部８２を（－Ｘ）方向へ付勢してボトル８が保持される。ボトル８は回転対称軸８００を中心として回転自在にボトル保持装置３００において保持される。 When the bottle 8 is held by the bottle holding device 300, the pressing member 322 comes into contact with the bottom portion 82 from the (−X) direction side. The bottle 8 is arranged so that the axis of rotational symmetry 800 coincides with the axis 309, and the pressing member 322 urges the bottom portion 82 in the (-X) direction in a state where the mouth portion 81 and the mouth holding member 313 are connected to the bottle. 8 is retained. The bottle 8 is rotatably held in the bottle holding device 300 about the axis of rotational symmetry 800.
　付勢部材３２３は押圧部材３２２を底部８２へ付勢する機能を有する。付勢部材３２３は、押圧部材３２２と第２支持部３３２の（－Ｘ）方向側の壁面３３２ａとの間において、シャフト３２１に固定されずにシャフト３２１の周囲に設けられる。 The urging member 323 has a function of urging the pressing member 322 to the bottom 82. The urging member 323 is provided around the shaft 321 between the pressing member 322 and the wall surface 332a on the (−X) direction side of the second support portion 332 without being fixed to the shaft 321.
　オペレータは、付勢部材３２３による付勢力に抗いながら摘み部材３２４を（＋Ｘ）方向に移動させて、押圧部材３２２を底部８２から離すことができる。押圧部材３２２を底部８２から離すことは、口元部８１から口元保持部材３１３を取り外す処理を容易にする。 The operator can move the picking member 324 in the (+ X) direction while resisting the urging force of the urging member 323 to separate the pressing member 322 from the bottom 82. Separating the pressing member 322 from the bottom portion 82 facilitates the process of removing the mouth holding member 313 from the mouth portion 81.
　例えば第１支持部３３１において自動調心軸受（不図示）が設けられてもよい。自動調心軸受は、以下のように、ボトル８を安定して回転させることに寄与する。 For example, a self-aligning bearing (not shown) may be provided in the first support portion 331. The self-aligning bearing contributes to the stable rotation of the bottle 8 as follows.
　ボトル８が同一仕様で大量生産されても、それらの間に個体差が存在する。例えば雄ねじ８３の軸は、回転対称軸８００と一致して設計されていても、ボトル８同士の間でばらつくことがある。雄ねじ８３は口元保持部材３１３の雌ねじと螺合するとき、当該雌ねじの軸方向が軸３０９と一致しなくなる場合が想定される。 Even if bottles 8 are mass-produced with the same specifications, there are individual differences between them. For example, the axis of the male screw 83 may vary between the bottles 8 even if it is designed to coincide with the axis of rotational symmetry 800. When the male screw 83 is screwed with the female screw of the mouth holding member 313, it is assumed that the axial direction of the female screw does not match the shaft 309.
　このような場合に、口元部８１および底部８２をそれぞれ口元保持部材３１３および押圧部材３２２で保持すると、口元部８１に対して口元保持部材３１３から回転対称軸８００と非平行な方向に印加される応力が大きい場合が想定される。かかる応力によってボトル８が変形あるいは変位する可能性がある。 In such a case, when the mouth portion 81 and the bottom portion 82 are held by the mouth holding member 313 and the pressing member 322, respectively, the stress is applied from the mouth holding member 313 to the mouth portion 81 in a direction non-parallel to the axis of rotational symmetry 800. It is assumed that the stress is large. The stress may cause the bottle 8 to be deformed or displaced.
　自動調心軸受が設けられることは、ボトル８を回転対称軸８００を中心として回転させても、口元部８１に対して印加される応力を抑制することに寄与する。 The provision of the self-aligning bearing contributes to suppressing the stress applied to the mouth portion 81 even if the bottle 8 is rotated about the axis of rotational symmetry 800.
　転写においては、側面８０がブランケット３２と当接した状態でモータ３３がブランケット３２を回転させる。このときボトル８はブランケット３２に対して従動回転してもよいし、ブランケット３２以外の機構によってブランケット３２と同期回転してもよい。当該同期回転においてボトル８の回転方向は、ブランケット３２の回転方向とは逆の方向である。 In the transfer, the motor 33 rotates the blanket 32 with the side surface 80 in contact with the blanket 32. At this time, the bottle 8 may be driven to rotate with respect to the blanket 32, or may be rotated synchronously with the blanket 32 by a mechanism other than the blanket 32. In the synchronous rotation, the rotation direction of the bottle 8 is opposite to the rotation direction of the blanket 32.
　ボトル保持装置３００は回転駆動部３４０を備えてもよい。回転駆動部３４０は第１支持部３３１に対して（－Ｘ）方向側に設けられる。回転駆動部３４０はシャフト３１１を介してボトル８を回転駆動する。回転駆動部３４０の機能それ自体はこの実施の形態とは関係が小さいので、回転駆動部３４０の構成の詳細な説明は省略される。 The bottle holding device 300 may include a rotary drive unit 340. The rotation drive unit 340 is provided on the (−X) direction side with respect to the first support unit 331. The rotary drive unit 340 rotationally drives the bottle 8 via the shaft 311. Since the function of the rotation drive unit 340 itself has little relation to this embodiment, detailed description of the configuration of the rotation drive unit 340 is omitted.
　ボトル保持装置３００はバックアップローラ３５１，３５２，３５３を備える。バックアップローラ３５１，３５２，３５３はそれぞれシャフト３５１ｒ，３５２ｒ，３５３ｒの周りに取り付けられる。バックアップローラ３５１，３５２，３５３のいずれも、少なくとも一部が円環状である。 The bottle holding device 300 includes backup rollers 351 and 352, 353. The backup rollers 351r, 352 and 353 are mounted around the shafts 351r, 352r and 353r, respectively. At least a part of each of the backup rollers 351 and 352 and 353 is annular.
　以下では、ブランケット３２から側面８０へのインクパターンの転写において、ブランケット３２と側面８０とが接触する部分が次の条件にある場合が例示される：当該部分はＸ方向に平行であり、当該部分のＺ方向における位置は回転対称軸８００のＺ方向における位置と一致する。 In the following, in the transfer of the ink pattern from the blanket 32 to the side surface 80, a case where the portion where the blanket 32 and the side surface 80 are in contact is under the following conditions is exemplified: the portion is parallel to the X direction and the portion is concerned. The position of the above in the Z direction coincides with the position of the axis of rotational symmetry 800 in the Z direction.
　図６は転写の際におけるボトル８とバックアップローラ３５１，３５２，３５３と、ブランケットロール３０との位置関係を模式的に例示する側面図である。図６において紙面手前向きが（＋Ｘ）方向に対応し、上向きが（＋Ｚ）方向に対応する。 FIG. 6 is a side view schematically illustrating the positional relationship between the bottle 8, the backup rollers 351 and 352, 353, and the blanket roll 30 at the time of transfer. In FIG. 6, the front side of the paper corresponds to the (+ X) direction, and the upward direction corresponds to the (+ Z) direction.
　シャフト３５１ｒはＸ方向に平行であって、第１支持部３３１と第２支持部３３２とに対して、自身の中心軸１ａを中心として回転自在に軸支される。シャフト３５２ｒはＸ方向に平行であって、第１支持部３３１と第２支持部３３２とに対して、自身の中心軸２ａを中心として回転自在に軸支される。 The shaft 351r is parallel to the X direction and is rotatably supported by the first support portion 331 and the second support portion 332 about its own central axis 1a. The shaft 352r is parallel to the X direction and is rotatably supported by the first support portion 331 and the second support portion 332 about its own central axis 2a.
　シャフト３５１ｒは、回転対称軸８００に対して（＋Ｚ）方向側であって、かつ（＋Ｙ）方向側に配置される。シャフト３５２ｒは、回転対称軸８００に対して（－Ｚ）方向側であって、かつ（－Ｙ）方向側に配置される。 The shaft 351r is arranged on the (+ Z) direction side and the (+ Y) direction side with respect to the rotation symmetry axis 800. The shaft 352r is arranged on the (-Z) direction side and the (-Y) direction side with respect to the rotation symmetry axis 800.
　シャフト３５３ｒはＸ方向に平行である。シャフト３５３ｒは回転対称軸８００に対して（＋Ｚ）方向側に配置される。シャフト３５３ｒは可動部３５３ｓ（図４および図５参照）に対して（－Ｘ）方向側において、シャフト３５３ｒの中心軸３ａを中心として回転自在に軸支される。可動部３５３ｓは第２支持部３３２に対して（＋Ｙ）方向および（－Ｙ）方向に沿って移動自在に取り付けられる。本実施の形態において可動部３５３ｓはＹ方向に垂直な方向には移動しない。 The shaft 353r is parallel to the X direction. The shaft 353r is arranged on the (+ Z) direction side with respect to the rotation symmetry axis 800. The shaft 353r is rotatably supported around the central axis 3a of the shaft 353r on the (-X) direction side with respect to the movable portion 353s (see FIGS. 4 and 5). The movable portion 353s is movably attached to the second support portion 332 along the (+ Y) direction and the (−Y) direction. In the present embodiment, the movable portion 353s does not move in the direction perpendicular to the Y direction.
　可動部３５３ｓは不図示の機構、例えばバネによって（－Ｙ）方向へ付勢される。可動部３５３ｓは不図示の機構によって（－Ｙ）方向へ移動する限度となる位置（以下「停止位置」）が規定される。よって可動部３５３ｓに対して（＋Ｙ）方向への外力が印加されない状態では、可動部３５３ｓは停止位置に位置する。可動部３５３ｓが停止位置に位置するとき、シャフト３５３ｒのＹ方向における位置は回転対称軸８００のＹ方向における位置に対してほぼ等しい。図４、図５は可動部３５３ｓが停止位置に位置する状態を例示する。可動部３５３ｓが停止位置に位置するときのバックアップローラ３５３、シャフト３５３ｒおよびその中心軸３ａは、図６において実線で描かれる。 The movable portion 353s is urged in the (-Y) direction by a mechanism (not shown), for example, a spring. A position (hereinafter referred to as “stop position”) at which the movable portion 353s is limited to move in the (−Y) direction is defined by a mechanism (not shown). Therefore, in a state where an external force in the (+ Y) direction is not applied to the movable portion 353s, the movable portion 353s is located at the stop position. When the movable portion 353s is located at the stop position, the position of the shaft 353r in the Y direction is substantially equal to the position of the rotational symmetry axis 800 in the Y direction. 4 and 5 illustrate a state in which the movable portion 353s is located at the stop position. The backup roller 353, the shaft 353r, and the central axis 3a thereof when the movable portion 353s is located at the stop position are drawn by a solid line in FIG.
　第２保持部３２０は（＋Ｘ）方向や（－Ｘ）方向におけるボトル８の変位を抑制できても、回転対称軸８００についての径方向（以下、単に「径方向」）への変位を抑制する作用は小さい。バックアップローラ３５１，３５２，３５３は、ボトル保持装置３００にボトル８が保持された状態において、側面８０に当接する。バックアップローラ３５１，３５２，３５３は、ボトル保持装置３００に保持された状態のボトル８の、径方向への変位を抑制する。 Although the second holding portion 320 can suppress the displacement of the bottle 8 in the (+ X) direction and the (−X) direction, it suppresses the displacement of the rotational symmetry axis 800 in the radial direction (hereinafter, simply “diameter direction”). The effect is small. The backup rollers 351, 352, 353 come into contact with the side surface 80 while the bottle 8 is held by the bottle holding device 300. The backup rollers 351, 352, 353 suppress the displacement of the bottle 8 held by the bottle holding device 300 in the radial direction.
　図４および図５においては、バックアップローラ３５１，３５２，３５３のＸ方向における位置は、互いにほぼ等しい場合が例示される。バックアップローラ３５１，３５２，３５３のＸ方向における位置が異なる場合については、実施の形態２において説明される。 In FIGS. 4 and 5, the positions of the backup rollers 351, 352, 353 in the X direction are exemplified to be substantially equal to each other. The case where the positions of the backup rollers 351 and 352 and 353 in the X direction are different will be described in the second embodiment.
　インクパターンがブランケット３２から側面８０へ転写される際に、ボトル８はブランケット３２から（＋Ｙ）方向の力を受ける。この力に対抗する力がバックアップローラ３５１からボトル８へ与えられ、ブランケット３２と側面８０とが適切に当接する。 When the ink pattern is transferred from the blanket 32 to the side surface 80, the bottle 8 receives a force in the (+ Y) direction from the blanket 32. A force that opposes this force is applied from the backup roller 351 to the bottle 8, and the blanket 32 and the side surface 80 are appropriately brought into contact with each other.
　バックアップローラ３５１，３５２，３５３がなければ、ボトル保持装置３００は第１支持部３３１および口元部８１と、第２支持部３３２および底部８２とを介して側面８０をブランケット３２へ押圧する。口元部８１および底部８２はいずれもボトル８のＸ方向における端部である。バックアップローラ３５１，３５２，３５３がなければ、側面８０がブランケット３２を押圧する際、ボトル８が変位する可能性がある。バックアップローラ３５１，３５２，３５３は第１支持部３３１と第２支持部３３２との間で側面８０に当接するので、側面８０がブランケット３２を押圧する際にボトル８は変位しにくい。 Without the backup rollers 351,352,353, the bottle holding device 300 presses the side surface 80 against the blanket 32 via the first support portion 331 and the mouth portion 81, and the second support portion 332 and the bottom portion 82. Both the mouth portion 81 and the bottom portion 82 are the ends of the bottle 8 in the X direction. Without the backup rollers 351 and 352,353, the bottle 8 may be displaced when the side surface 80 presses on the blanket 32. Since the backup rollers 351, 352, 353 abut on the side surface 80 between the first support portion 331 and the second support portion 332, the bottle 8 is unlikely to be displaced when the side surface 80 presses the blanket 32.
　転写において側面８０は回転するので、これに当接するバックアップローラ３５１，３５２，３５３も回転する。かかる動作に鑑みて、バックアップローラ３５１，３５２，３５３のいずれもが少なくとも側面８０と当接する部位において円環状であって、それぞれ中心軸１ａ，２ａ，３ａを中心として回転自在である。 Since the side surface 80 rotates in the transfer, the backup rollers 351 and 352, 353 that come into contact with the side surface 80 also rotate. In view of this operation, all of the backup rollers 351 and 352 and 353 are annular at least at the portion where they abut on the side surface 80, and are rotatable about the central axes 1a, 2a and 3a, respectively.
　転写においてバックアップローラ３５１，３５２，３５３は側面８０に当接する。転写されたインクパターンの粘度が低いと、既にインクパターンが転写された側面８０からバックアップローラ３５１，３５２，３５３へとインクパターンが二次的に転写されることが想定される。二次的な転写を得たバックアップローラ３５１，３５２，３５３は側面８０への三次的な転写、ひいては逆転写を招来する可能性もある。 In transfer, the backup rollers 351 and 352, 353 abut on the side surface 80. If the viscosity of the transferred ink pattern is low, it is assumed that the ink pattern is secondarily transferred from the side surface 80 to which the ink pattern has already been transferred to the backup rollers 351, 352, 353. The backup rollers 351, 352, 353 that have obtained the secondary transfer may lead to the tertiary transfer to the side surface 80, and thus the reverse transfer.
　［全体的な構成の説明］において上述されたボトル保持装置３００の汚染には、バックアップローラ３５１，３５２，３５３への二次的な転写が含まれる。硬化ユニット４の採用はかかる汚染の回避にも寄与する。 The contamination of the bottle holding device 300 described above in [Explanation of the overall configuration] includes secondary transfer to the backup rollers 351 and 352, 353. The adoption of the curing unit 4 also contributes to the avoidance of such contamination.
　転写において必ずしもバックアップローラ３５３は必要ではない。Ｘ方向に沿って見て、バックアップローラ３５１，３５２およびブランケット３２が回転対称軸８００を囲んで側面８０に当接するからである。 The backup roller 353 is not always necessary for transfer. This is because the backup rollers 351, 352 and the blanket 32 surround the axis of rotational symmetry 800 and abut on the side surface 80 when viewed along the X direction.
　例えば転写に際しては可動部３５３ｓに対して（＋Ｙ）方向への外力が印加され、可動部３５３ｓは停止位置よりも（＋Ｙ）方向へ移動する。可動部３５３ｓが停止位置にあるとき、シャフト３５３ｒのＹ方向における位置は回転対称軸８００のＹ方向における位置に対してほぼ等しい。よって可動部３５３ｓが（＋Ｙ）方向へ移動することはボトル８によって阻害されにくい。かかる移動により、バックアップローラ３５３と側面８０との当接は解除される。図６において、可動部３５３ｓが（＋Ｙ）方向へ移動したときのバックアップローラ３５３およびシャフト３５３ｒが一点鎖線で示される。かかる解除はバックアップローラ３５３への二次的な転写を回避する利点の他、後述される利点をも招来する。 For example, during transfer, an external force is applied to the movable portion 353s in the (+ Y) direction, and the movable portion 353s moves in the (+ Y) direction from the stop position. When the movable portion 353s is in the stop position, the position of the shaft 353r in the Y direction is substantially equal to the position of the rotational symmetry axis 800 in the Y direction. Therefore, the movement of the movable portion 353s in the (+ Y) direction is less likely to be hindered by the bottle 8. By such movement, the contact between the backup roller 353 and the side surface 80 is released. In FIG. 6, the backup roller 353 and the shaft 353r when the movable portion 353s moves in the (+ Y) direction are shown by a alternate long and short dash line. Such release brings about the advantage described later as well as the advantage of avoiding the secondary transfer to the backup roller 353.
　転写されるとき以外において、Ｘ方向に沿って見て、バックアップローラ３５１，３５２，３５３が回転対称軸８００を囲んで側面８０に当接することが望ましい。ボトル保持装置３００がボトル８を保持しつつ上述された近接、離隔、移動を行うことを考慮すると、ボトル保持装置３００においてボトル８が安定して保持されることが望ましいからである。バックアップローラ３５１，３５２，３５３と側面８０とが好適に当接するときの位置関係については後に詳述される。 It is desirable that the backup rollers 351, 352, 353 surround the axis of rotational symmetry 800 and abut on the side surface 80 when viewed along the X direction, except when transferred. This is because it is desirable that the bottle 8 is stably held in the bottle holding device 300 in consideration of the above-mentioned proximity, separation, and movement while the bottle holding device 300 holds the bottle 8. The positional relationship when the backup rollers 351 and 352, 353 and the side surface 80 are preferably in contact with each other will be described in detail later.
　印刷システム１００によるボトル８への印刷、特に上記（ｉｉ），（ｉｉｉ）の工程は、例えば下記のようにして実現される。印刷処理は、制御装置９が予め記憶されたプログラムを実行し、図３にブロックで例示された各要素に所定の動作を実行させることにより実現される。 Printing on the bottle 8 by the printing system 100, particularly the steps (ii) and (iii) above, is realized as follows, for example. The printing process is realized by the control device 9 executing a program stored in advance and causing each element exemplified by the block in FIG. 3 to execute a predetermined operation.
　印刷装置１０１から離れた位置に、例えばボトル８を着脱するための領域（以下「着脱領域」）が設定される。ボトル搬送装置４０３はボトル保持装置３００を着脱領域へ搬送する。着脱領域へ搬送されてきたボトル保持装置３００に対し、オペレータがボトル８を着脱する。 For example, an area for attaching / detaching the bottle 8 (hereinafter referred to as “attaching / detaching area”) is set at a position away from the printing device 101. The bottle transfer device 403 transports the bottle holding device 300 to the attachment / detachment area. The operator attaches / detaches the bottle 8 to / from the bottle holding device 300 which has been conveyed to the attachment / detachment area.
　ボトル保持装置３００に印刷済のボトル８が装着されている場合、オペレータは摘み部材３１４，３２４を操作し、第１保持部３１０および第２保持部３２０によるボトル８の保持を解除する。オペレータは可動部３５３ｓに対して（＋Ｙ）方向へ押圧して、バックアップローラ３５３の側面８０への当接を解除する。当該保持が解除され、当該当接が解除されたボトル８はボトル保持装置３００から取り外される。 When the printed bottle 8 is attached to the bottle holding device 300, the operator operates the picking members 314 and 324 to release the holding of the bottle 8 by the first holding portion 310 and the second holding portion 320. The operator presses the movable portion 353s in the (+ Y) direction to release the contact of the backup roller 353 with the side surface 80. The holding is released, and the bottle 8 from which the contact is released is removed from the bottle holding device 300.
　ボトル保持装置３００に対してボトル８が装着されていない場合、オペレータは印刷前のボトル８をボトル保持装置３００に運び込む。オペレータは可動部３５３ｓを押圧し、バックアップローラ３５３を一時的に（＋Ｙ）方向へ移動させた状態が得られる。当該状態においてオペレータは側面８０をバックアップローラ３５１，３５２に当接させたのち、可動部３５３ｓへの押圧をやめてバックアップローラ３５３を側面８０に当接させる。バックアップローラ３５１，３５２，３５３が側面８０に当接することは、回転対称軸８００についての径方向へとボトル８が変位しにくいことに寄与する。 If the bottle 8 is not attached to the bottle holding device 300, the operator carries the bottle 8 before printing into the bottle holding device 300. The operator presses the movable portion 353s, and a state in which the backup roller 353 is temporarily moved in the (+ Y) direction is obtained. In this state, the operator brings the side surface 80 into contact with the backup rollers 351 and 352, then stops pressing the movable portion 353s and brings the backup roller 353 into contact with the side surface 80. The contact of the backup rollers 351, 352, 353 with the side surface 80 contributes to the fact that the bottle 8 is less likely to be displaced in the radial direction with respect to the axis of rotational symmetry 800.
　オペレータは摘み部材３１４，３２４を操作して第１保持部３１０および第２保持部３２０に当該ボトル８を保持させる。第１保持部３１０および第２保持部３２０によるボトル８の保持は、回転対称軸８００に沿ってボトル８が変位しにくいことに寄与する。 The operator operates the picking members 314 and 324 to cause the first holding portion 310 and the second holding portion 320 to hold the bottle 8. The holding of the bottle 8 by the first holding portion 310 and the second holding portion 320 contributes to the fact that the bottle 8 is less likely to be displaced along the axis of rotational symmetry 800.
　印刷前のボトル８が装着されたことは、例えばオペレータによって制御装置９に了知される。制御装置９はボトル搬送装置４０３を制御して、ボトル８を保持したボトル保持装置３００を印刷装置１０１へ搬送させる。 For example, the operator acknowledges that the bottle 8 before printing is attached to the control device 9. The control device 9 controls the bottle transfer device 403 to transfer the bottle holding device 300 holding the bottle 8 to the printing device 101.
　制御装置９はステージ移動装置４０１を制御して、ステージ１１を（＋Ｙ）方向に移動させ、版１２がノズル２１にＺ方向において対向する。制御装置９はインク供給部２２を制御してノズル２１を介してインクを吐出させる。版１２の上面にはインクパターンが形成される。 The control device 9 controls the stage moving device 401 to move the stage 11 in the (+ Y) direction, and the plate 12 faces the nozzle 21 in the Z direction. The control device 9 controls the ink supply unit 22 to eject ink through the nozzle 21. An ink pattern is formed on the upper surface of the plate 12.
　制御装置９はモータ駆動回路４０２を制御してモータ３３を回転させる。モータ３３の回転は、ブランケットロール３０を回転させる。制御装置９はステージ移動装置４０１を制御してブランケットロール３０の回転と同期してステージ１１を更に（＋Ｙ）方向へ移動させる。ブランケット３２は版１２と当接しつつ回転し、インクパターンを受理する。 The control device 9 controls the motor drive circuit 402 to rotate the motor 33. The rotation of the motor 33 rotates the blanket roll 30. The control device 9 controls the stage moving device 401 to move the stage 11 further in the (+ Y) direction in synchronization with the rotation of the blanket roll 30. The blanket 32 rotates while being in contact with the plate 12, and receives the ink pattern.
　制御装置９はステージ移動装置４０１を制御してステージ１１を（－Ｚ）方向に移動させてブランケット３２と版１２との当接を解除する。更に制御装置９はステージ移動装置４０１を制御してステージ１１を（－Ｙ）方向に移動させ、ステージ１１はインク充填ユニット２よりも（－Ｙ）方向側に配置される。 The control device 9 controls the stage moving device 401 to move the stage 11 in the (-Z) direction to release the contact between the blanket 32 and the plate 12. Further, the control device 9 controls the stage moving device 401 to move the stage 11 in the (—Y) direction, and the stage 11 is arranged on the (—Y) direction side of the ink filling unit 2.
　制御装置９はボトル搬送装置４０３を制御して、ボトル保持装置３００を（－Ｙ）方向へ移動させ、側面８０の印刷開始位置をブランケット３２に当接させる。ブランケット３２は回転してブランケット３２から側面８０へのインクパターンの転写が行われる。 The control device 9 controls the bottle transfer device 403 to move the bottle holding device 300 in the (−Y) direction, and brings the printing start position of the side surface 80 into contact with the blanket 32. The blanket 32 is rotated to transfer the ink pattern from the blanket 32 to the side surface 80.
　印刷装置１０１に搬送されてきたボトル保持装置３００においては、制御装置９からの駆動指令に応じて回転駆動部３４０が作動してもよい。この場合、回転駆動部３４０は制御装置９の制御によって、モータ３３と同期してボトル８を回転させる。 In the bottle holding device 300 conveyed to the printing device 101, the rotary drive unit 340 may be operated in response to a drive command from the control device 9. In this case, the rotation drive unit 340 rotates the bottle 8 in synchronization with the motor 33 under the control of the control device 9.
　回転駆動部３４０は制御装置９の制御によって、側面８０がブランケット３２へ当接する前に、側面８０における印刷開始位置を所定の位置に配置してもよい。 The rotation drive unit 340 may, under the control of the control device 9, arrange the printing start position on the side surface 80 at a predetermined position before the side surface 80 abuts on the blanket 32.
　印刷装置１０１での印刷処理が完了すると、インクパターンが印刷されたボトル８を保持したボトル保持装置３００は、制御装置９による制御の下、ステージ移動装置４０１によって印刷装置１０１から着脱領域へ搬送される。 When the printing process in the printing device 101 is completed, the bottle holding device 300 holding the bottle 8 on which the ink pattern is printed is conveyed from the printing device 101 to the attachment / detachment area by the stage moving device 401 under the control of the control device 9. To.
　以上のように、本実施形態では、ボトル８の口元部８１および底部８２が、それぞれ第１保持部３１０および第２保持部３２０によって回転対称軸８００を中心として回転自在に保持される。側面８０は円筒形状でなくても、回転対称軸８００に関して回転対称な形状であってボトル８の外径寸法がＸ方向の位置において相違してもよい。 As described above, in the present embodiment, the mouth portion 81 and the bottom portion 82 of the bottle 8 are rotatably held around the rotation symmetry axis 800 by the first holding portion 310 and the second holding portion 320, respectively. The side surface 80 may not have a cylindrical shape, but may have a rotationally symmetric shape with respect to the rotational symmetry axis 800, and the outer diameter dimension of the bottle 8 may differ at the position in the X direction.
　図７および図８は、ボトル８とバックアップローラ３５１，３５２，３５３との位置関係を模式的に例示する側面図である。図７および図８において紙面手前向きが（＋Ｘ）方向に対応し、上向きが（＋Ｚ）方向に対応する。回転対称軸８００は（＋Ｘ）方向と、従って（－Ｘ）方向と平行である。よって図７および図８のいずれもが、回転対称軸８００に平行な方向に沿って見た図である。 7 and 8 are side views schematically illustrating the positional relationship between the bottle 8 and the backup rollers 351, 352, 353. In FIGS. 7 and 8, the front side of the paper corresponds to the (+ X) direction, and the upward direction corresponds to the (+ Z) direction. The axis of rotational symmetry 800 is parallel to the (+ X) direction and thus the (−X) direction. Therefore, both FIGS. 7 and 8 are views taken along the direction parallel to the axis of rotational symmetry 800.
　図７は例えば、ボトル保持装置３００の転写ユニット３および硬化ユニット４への近接および離隔、複数の印刷装置１０１の間の移動、転写において好適な位置関係を示す。図７に示された位置関係は、可動部３５３ｓが停止位置にあるときに得られる。 FIG. 7 shows, for example, a suitable positional relationship in the proximity and separation of the bottle holding device 300 to the transfer unit 3 and the curing unit 4, the movement between the plurality of printing devices 101, and the transfer. The positional relationship shown in FIG. 7 is obtained when the movable portion 353s is in the stop position.
　図８は転写およびボトル保持装置３００からボトル８を取り外す際に好適な位置関係を示す。図８に示された位置関係は、可動部３５３ｓが（＋Ｙ）方向に移動して得られる。 FIG. 8 shows a suitable positional relationship when removing the bottle 8 from the transfer and bottle holding device 300. The positional relationship shown in FIG. 8 is obtained by moving the movable portion 353s in the (+ Y) direction.
　図７および図８のいずれにおいても、バックアップローラ３５１，３５２は、ボトル８とそれぞれ位置１ｂ，２ｂにおいて当接する。図７においてバックアップローラ３５３は、ボトル８と位置３ｂにおいて当接する。図８においてバックアップローラ３５３は、ボトル８と当接しない。 In both FIGS. 7 and 8, the backup rollers 351 and 352 abut with the bottle 8 at positions 1b and 2b, respectively. In FIG. 7, the backup roller 353 comes into contact with the bottle 8 at position 3b. In FIG. 8, the backup roller 353 does not come into contact with the bottle 8.
　図７において位置１ｂと、位置２ｂと、位置３ｂとが形成する三角形３８は回転対称軸８００を囲む。 In FIG. 7, the triangle 38 formed by the position 1b, the position 2b, and the position 3b surrounds the axis of rotational symmetry 800.
　三角形３８と回転対称軸８００とがこのような位置関係にあれば、バックアップローラ３５１，３５２，３５３によって、ボトル８は安定にボトル保持装置３００に保持される。ボトル保持装置３００が転写ユニット３および硬化ユニット４へ近接したり、それらから離隔したり、複数の印刷装置１０１の間を移動したりしても、径方向へのボトル８の変位が抑制される。バックアップローラ３５１，３５２，３５３のいずれの二つの間における距離も、回転対称軸８００に沿って見て側面８０が呈する円の直径よりも小さいからである。 If the triangle 38 and the axis of rotational symmetry 800 are in such a positional relationship, the bottle 8 is stably held in the bottle holding device 300 by the backup rollers 351, 352, 353. Even if the bottle holding device 300 approaches or separates from the transfer unit 3 and the curing unit 4 or moves between the plurality of printing devices 101, the displacement of the bottle 8 in the radial direction is suppressed. .. This is because the distance between any two of the backup rollers 351, 352, 353 is smaller than the diameter of the circle exhibited by the side surface 80 when viewed along the axis of rotational symmetry 800.
　以下の説明において、バックアップローラ３５３のうち回転対称軸８００に最も近い位置３ｃが導入される。図８においてバックアップローラ３５３は側面８０とは当接しない。図７のようにバックアップローラ３５３が側面８０とは当接するときには位置３ｂ，３ｃは一致する。 In the following description, the position 3c of the backup rollers 353 closest to the rotation symmetry axis 800 is introduced. In FIG. 8, the backup roller 353 does not come into contact with the side surface 80. As shown in FIG. 7, when the backup roller 353 comes into contact with the side surface 80, the positions 3b and 3c coincide with each other.
　図８において、回転対称軸８００は、位置１ｂ，２ｂ，３ｃが形成する三角形３９から外れる。 In FIG. 8, the axis of rotational symmetry 800 deviates from the triangle 39 formed by the positions 1b, 2b, 3c.
　三角形３９と回転対称軸８００とがこのような位置関係にあれば、ボトル８をボトル保持装置３００から取り出すことが容易である。バックアップローラ３５１，３５２，３５３のいずれか二つの間における距離が、回転対称軸８００に沿って見た側面８０が呈する円の直径よりも大きいからである。図８に即していえば、位置２ｂ，３ｃの間の距離が当該円の直径よりも大きい。 If the triangle 39 and the axis of rotational symmetry 800 have such a positional relationship, it is easy to take out the bottle 8 from the bottle holding device 300. This is because the distance between any two of the backup rollers 351 and 352 and 353 is larger than the diameter of the circle exhibited by the side surface 80 as seen along the axis of rotational symmetry 800. According to FIG. 8, the distance between the positions 2b and 3c is larger than the diameter of the circle.
　図８における位置関係は、位置２ｂとバックアップローラ３５３のうち位置２ｂに最も近い位置（図８において位置３ｃとほぼ一致するので図示省略）との間の距離が、所定間隔よりも広いとみることもできる。当該所定間隔は、位置１ｂ，２ｂ，３ｂが規定する円（図７、図８において側面８０が呈する円）の直径である。位置２ｂとバックアップローラ３５３のうち位置２ｂに最も近い位置との間の距離が、当該所定間隔よりも広いとき、回転対称軸８００に沿って見て回転対称軸８００が三角形３９に囲まれていても、ボトル８をボトル保持装置３００から取り出すことが容易である。位置１ｂとバックアップローラ３５３のうち位置１ｂに最も近い位置との間の距離が、当該所定間隔よりも広いときも同様である。 Regarding the positional relationship in FIG. 8, it is considered that the distance between the position 2b and the position closest to the position 2b of the backup rollers 353 (not shown because it almost coincides with the position 3c in FIG. 8) is wider than the predetermined interval. You can also. The predetermined interval is the diameter of the circle (circle exhibited by the side surface 80 in FIGS. 7 and 8) defined by the positions 1b, 2b, and 3b. When the distance between the position 2b and the position of the backup roller 353 closest to the position 2b is wider than the predetermined interval, the rotational symmetry axis 800 is surrounded by the triangle 39 when viewed along the rotational symmetry axis 800. Also, it is easy to take out the bottle 8 from the bottle holding device 300. The same applies when the distance between the position 1b and the position closest to the position 1b of the backup rollers 353 is wider than the predetermined interval.
　バックアップローラ３５３の位置が移動することにより、ボトル８は安定にボトル保持装置３００に保持されることも、ボトル保持装置３００から容易に取り出されることも実現される。 By moving the position of the backup roller 353, the bottle 8 can be stably held by the bottle holding device 300 and can be easily taken out from the bottle holding device 300.
　図９はブランケットロール３０および硬化ユニット４、並びにその周辺の構成を例示する斜視図である。ブランケット胴３１はシャフト３０１によって回転駆動される。シャフト３０１はシャフト３０２によって回転駆動される。シャフト３０１はモータ３３（図１，図２参照：図９において不図示）によって回転駆動される。シャフト３０１，３０２は一体であってもよい。軸受け部３０３はシャフト３０１，３０２を回転自在に軸支する。 FIG. 9 is a perspective view illustrating the configuration of the blanket roll 30, the curing unit 4, and the periphery thereof. The blanket body 31 is rotationally driven by the shaft 301. The shaft 301 is rotationally driven by the shaft 302. The shaft 301 is rotationally driven by a motor 33 (see FIGS. 1 and 2: not shown in FIG. 9). The shafts 301 and 302 may be integrated. The bearing portion 303 rotatably supports the shafts 301 and 302.
　硬化ユニット４は軸受け部３０３に固定される。硬化ユニット４はインクの粘度を増大させる光を照射する面４１を、その（－Ｚ）方向側に有する。図９においては、面４１がＹ方向における硬化ユニット４の中央近傍で（－Ｚ）方向側に突出している形態が例示される。面４１は（－Ｚ）方向側に、上述された光を照射する。 The curing unit 4 is fixed to the bearing portion 303. The curing unit 4 has a surface 41 that irradiates light that increases the viscosity of the ink on the (-Z) direction side thereof. In FIG. 9, a form in which the surface 41 projects in the (—Z) direction near the center of the curing unit 4 in the Y direction is exemplified. The surface 41 irradiates the above-mentioned light on the (—Z) direction side.
　当接部材３０４は軸受け部３０３に固定される。ボトル保持装置３００がブランケットロール３０に（＋Ｙ）方向側から（－Ｙ）方向へ近接すると、当接部材３０４は可動部３５３ｓに（－Ｙ）方向側から近づく。ボトル保持装置３００が（－Ｙ）方向に沿ってブランケットロール３０へ近接し、側面８０がブランケット３２に当接する迄に、当接部材３０４は可動部３５３ｓに当接する。当接部材３０４の可動部３５３ｓへの当接が開始してからもボトル保持装置３００が（－Ｙ）方向へ近接すると、当接部材３０４は可動部３５３ｓを第２支持部３３２に対して（＋Ｙ）方向へ移動させる。転写において当接部材３０４は可動部３５３ｓに当接している。 The contact member 304 is fixed to the bearing portion 303. When the bottle holding device 300 approaches the blanket roll 30 from the (+ Y) direction side to the (−Y) direction, the contact member 304 approaches the movable portion 353s from the (−Y) direction side. By the time the bottle holding device 300 approaches the blanket roll 30 along the (-Y) direction and the side surface 80 abuts on the blanket 32, the abutting member 304 abuts on the movable portion 353s. When the bottle holding device 300 approaches in the (−Y) direction even after the contact of the contact member 304 with the movable portion 353s starts, the contact member 304 moves the movable portion 353s to the second support portion 332 ( Move in the + Y) direction. In the transfer, the contact member 304 is in contact with the movable portion 353s.
　図１０は当接部材３０４が可動部３５３ｓに当接しない状態を示す上面図である。図１１は転写の状態を示す上面図である。図１０および図１１において紙面手前向きが（＋Ｚ）方向であり、下向きが（＋Ｙ）方向である。図１０および図１１のいずれにおいても図示の煩雑が避けられるよう、硬化ユニット４に関しては面４１の位置のみが一点鎖線で描かれる。 FIG. 10 is a top view showing a state in which the contact member 304 does not contact the movable portion 353s. FIG. 11 is a top view showing a state of transfer. In FIGS. 10 and 11, the front side of the paper is the (+ Z) direction, and the downward direction is the (+ Y) direction. In both FIGS. 10 and 11, only the position of the surface 41 is drawn as a alternate long and short dash line with respect to the curing unit 4 so as to avoid the complexity shown in the figure.
　図４、図５、図７に示された状態は、図１０に示された状態において得られる。図８に示された状態は図１１に示された状態において得られる。 The states shown in FIGS. 4, 5 and 7 are obtained in the state shown in FIG. The state shown in FIG. 8 is obtained in the state shown in FIG.
　図１０を参照して、当接部材３０４が可動部３５３ｓに当接しない状態においては、可動部３５３ｓは停止位置にある。図１１を参照して、転写において可動部３５３ｓは、当接部材３０４によって第２支持部３３２に対して（＋Ｙ）方向へ移動する。可動部３５３ｓが第２支持部３３２に対して（＋Ｙ）方向へ移動することによって、シャフト３５３ｒひいてはバックアップローラ３５３も第２支持部３３２に対して（＋Ｙ）方向へ移動する。 With reference to FIG. 10, the movable portion 353s is in the stop position in a state where the contact member 304 does not abut on the movable portion 353s. With reference to FIG. 11, in the transfer, the movable portion 353s is moved in the (+ Y) direction with respect to the second support portion 332 by the contact member 304. When the movable portion 353s moves in the (+ Y) direction with respect to the second support portion 332, the shaft 353r and thus the backup roller 353 also move in the (+ Y) direction with respect to the second support portion 332.
　転写においては面４１から側面８０へと上述された光が照射されてインクの粘度が増大する。転写においてバックアップローラ３５３、シャフト３５３ｒが面４１と側面８０との間に位置しないことは、面４１によって側面８０へ光が照射されることを妨げず、ひいてはインクの粘度が増大して二次的な転写が回避されることに寄与する。 In the transfer, the above-mentioned light is irradiated from the surface 41 to the side surface 80, and the viscosity of the ink increases. The fact that the backup roller 353 and the shaft 353r are not located between the surface 41 and the side surface 80 in the transfer does not prevent the side surface 80 from being irradiated with light by the surface 41, which in turn increases the viscosity of the ink and is secondary. Contributes to avoiding unnecessary transcription.
　上述された様に説明されたことは、総括的に、以下のように説明される。 What was explained as described above is generally explained as follows.
　ワークたるボトル８は印刷の対象である。ボトル８の全面に印刷される必要はなく、ボトル８が回転対称の形状を呈する側面８０を被印刷面として有すれば足りる。被印刷面はその少なくとも一部分が、バックアップローラ３５１，３５２，３５３によって保持される観点から、円筒であることが望ましいが、被印刷面の全てが円筒である必要はない。上述された説明では側面８０は円筒形状である場合が例示されたが、ブランケット３２の厚さよりも小さな高さで側面８０に凹凸が生じる形状でも構わない。 The work barrel 8 is the object of printing. It is not necessary to print on the entire surface of the bottle 8, and it is sufficient if the side surface 80 in which the bottle 8 exhibits a rotationally symmetric shape is provided as a surface to be printed. The printed surface is preferably cylindrical from the viewpoint that at least a part thereof is held by the backup rollers 351 and 352,353, but it is not necessary that all of the printed surfaces are cylindrical. In the above description, the case where the side surface 80 has a cylindrical shape is exemplified, but the side surface 80 may have an uneven shape at a height smaller than the thickness of the blanket 32.
　ボトル保持装置３００はこのような印刷の対象たるボトル８を保持する。ボトル８はボトル保持装置３００による保持の対象であるともいる。ボトル保持装置３００は第１部材、第２部材、第３部材を備える。上述された説明におけるバックアップローラ３５１，３５２，３５３は、それぞれ第１部材、第２部材、第３部材を例示する。 The bottle holding device 300 holds the bottle 8 to be printed. It is also said that the bottle 8 is to be held by the bottle holding device 300. The bottle holding device 300 includes a first member, a second member, and a third member. The backup rollers 351, 352, 353 in the above description exemplify the first member, the second member, and the third member, respectively.
　図４および図５を参照して、バックアップローラ３５１は少なくとも一部が円環状であってシャフト３５１ｒの周りに取り付けられる。シャフト３５１ｒは自身の中心軸１ａを中心として回転自在に軸支される。バックアップローラ３５１は中心軸１ａを中心として回転自在であって、少なくとも一部が、中心軸１ａを中心とする円環状を呈する。 With reference to FIGS. 4 and 5, the backup roller 351 is at least partially annular and is mounted around the shaft 351r. The shaft 351r is rotatably supported around its own central axis 1a. The backup roller 351 is rotatable about the central axis 1a, and at least a part thereof exhibits an annular shape centered on the central axis 1a.
　バックアップローラ３５２は少なくとも一部が円環状であってシャフト３５２ｒの周りに取り付けられる。シャフト３５２ｒは自身の中心軸２ａを中心として回転自在に軸支される。バックアップローラ３５２は中心軸２ａを中心として回転自在であって、少なくとも一部が、中心軸２ａを中心とする円環状を呈する。 The backup roller 352 is at least partly annular and is attached around the shaft 352r. The shaft 352r is rotatably supported around its own central axis 2a. The backup roller 352 is rotatable about the central axis 2a, and at least a part thereof exhibits an annular shape centered on the central axis 2a.
　バックアップローラ３５３は少なくとも一部が円環状であってシャフト３５３ｒの周りに取り付けられる。シャフト３５３ｒは自身の中心軸３ａを中心として回転自在に軸支される。バックアップローラ３５３は中心軸３ａを中心として回転自在であって、少なくとも一部が、中心軸３ａを中心とする円環状を呈する。 The backup roller 353 is at least partly annular and is attached around the shaft 353r. The shaft 353r is rotatably supported around its own central axis 3a. The backup roller 353 is rotatable about the central axis 3a, and at least a part thereof exhibits an annular shape centered on the central axis 3a.
　側面８０は少なくとも、バックアップローラ３５１，３５２，３５３によって保持される部分において円筒形状を有する。 The side surface 80 has a cylindrical shape at least in a portion held by the backup rollers 351 and 352 and 353.
　ボトル保持装置３００は第１保持部３１０を備える。第１保持部３１０は、側面８０の回転対称軸８００を中心として回転自在にボトル８を保持する。 The bottle holding device 300 includes a first holding unit 310. The first holding portion 310 rotatably holds the bottle 8 about the rotation symmetry axis 800 of the side surface 80.
　図７および図８を参照して、回転対称軸８００に平行な（－Ｘ）方向（以下「第１方向」とも称す）に沿って見て、バックアップローラ３５１がボトル８と当接する第１位置は、バックアップローラ３５１が側面８０と当接する位置１ｂである。第１方向に沿って見て、バックアップローラ３５２がボトル８と当接する第２位置は、バックアップローラ３５２が側面８０と当接する位置２ｂである。 With reference to FIGS. 7 and 8, the first position where the backup roller 351 abuts on the bottle 8 when viewed along the (-X) direction parallel to the axis of rotational symmetry 800 (hereinafter also referred to as the "first direction"). Is the position 1b where the backup roller 351 comes into contact with the side surface 80. When viewed along the first direction, the second position where the backup roller 352 abuts on the bottle 8 is the position 2b where the backup roller 352 abuts on the side surface 80.
　図７を参照して、第１方向に沿って見て、バックアップローラ３５３がボトル８と当接する第３位置は、バックアップローラ３５２が側面８０と当接する位置３ｂである。位置１ｂ，２ｂ，３ｂが形成する三角形３８は回転対称軸８００を囲む。このような位置関係により、ボトル８は安定にボトル保持装置３００に保持される。 With reference to FIG. 7, when viewed along the first direction, the third position where the backup roller 353 abuts on the bottle 8 is the position 3b where the backup roller 352 abuts on the side surface 80. The triangle 38 formed by the positions 1b, 2b, and 3b surrounds the axis of rotational symmetry 800. Due to such a positional relationship, the bottle 8 is stably held by the bottle holding device 300.
　図４から図６を用いて説明されるように、シャフト３５３ｒは可動部３５３ｓに対して、中心軸３ａを中心として回転自在に軸支される。可動部３５３ｓは第２支持部３３２に対して（＋Ｙ）方向（以下「第２方向」とも称す）および（－Ｙ）方向（以下「第３方向」とも称す）に沿って移動自在に取り付けられる。第２方向および第３方向は第１方向と直交する。中心軸３ｒは第２方向および第３方向に沿って可動である。 As described with reference to FIGS. 4 to 6, the shaft 353r is rotatably supported with respect to the movable portion 353s about the central axis 3a. The movable portion 353s is movably attached to the second support portion 332 along the (+ Y) direction (hereinafter, also referred to as “second direction”) and the (−Y) direction (hereinafter, also referred to as “third direction”). .. The second and third directions are orthogonal to the first direction. The central axis 3r is movable along the second and third directions.
　中心軸３ａが図６において実線で、また図７において、それぞれ描かれる位置にあるとき（当該位置は以下「第４位置」とも称される）には、バックアップローラ３５３は位置３ｂを占める。 When the central axis 3a is a solid line in FIG. 6 and is in the position drawn in FIG. 7 (the position is also hereinafter referred to as “fourth position”), the backup roller 353 occupies the position 3b.
　中心軸３ａが図６において鎖線で、また図８において、それぞれ描かれる位置にあるとき（当該位置は第４位置とは相違する）には、第１方向に沿って見て回転対称軸８００は、位置１ｂ，２ｂ，３ｃが形成する三角形３９から外れる。位置３ｃはバックアップローラ３５３のうち回転対称軸８００に最も近い位置である。このような位置関係により、ボトル８をボトル保持装置３００から取り出すことが容易である。 When the central axis 3a is a chain line in FIG. 6 and is in the position drawn in FIG. 8 (the position is different from the fourth position), the rotational symmetry axis 800 is viewed along the first direction. , Deviates from the triangle 39 formed by the positions 1b, 2b, 3c. The position 3c is the position closest to the rotation symmetry axis 800 in the backup roller 353. Due to such a positional relationship, it is easy to take out the bottle 8 from the bottle holding device 300.
　また第１方向に沿って見て、位置２ｂと、バックアップローラ３５３のうち位置２ｂに最も近い位置との間の距離ｄが、所定間隔よりも広くても、ボトル８をボトル保持装置３００から取り出すことが容易である。ここで所定間隔は、側面８０のうち円筒形状を呈する部分が、第１方向に沿って見て現れる円の直径Ｄである。当該円は位置１ｂ，２ｂ，３ｂが規定する円の直径であるともいる。 Further, when viewed along the first direction, the bottle 8 is taken out from the bottle holding device 300 even if the distance d between the position 2b and the position closest to the position 2b of the backup rollers 353 is wider than a predetermined interval. Is easy. Here, the predetermined interval is the diameter D of a circle in which the portion of the side surface 80 having a cylindrical shape appears when viewed along the first direction. The circle is also said to be the diameter of the circle defined by the positions 1b, 2b, and 3b.
　可動部３５３ｓは第３方向へ付勢される。可動部３５３ｓに対して第２方向への外力が印加されず、中心軸３ａに対して第２方向への外力が働かないときには、可動部３５３ｓは停止位置に位置し、バックアップローラ３５３は位置３ｂを含む。 The movable part 353s is urged in the third direction. When the external force in the second direction is not applied to the movable portion 353s and the external force in the second direction does not act on the central axis 3a, the movable portion 353s is located at the stop position and the backup roller 353 is located at the position 3b. including.
　可動部３５３ｓに対して第２方向への外力が印加され、中心軸３ａに対して第２方向への外力が働くときに、可動部３５３ｓが第２支持部３３２に対して第２方向へ移動し、バックアップローラ３５３は位置３ｂから離れる。このように中心軸３ａが移動することは、図７に例示される位置関係と、図８に示される位置関係との両方を選択的に実現すること、ひいてはボトル保持装置３００に対するボトル８の着脱に寄与する。 When an external force in the second direction is applied to the movable portion 353s and an external force acts in the second direction with respect to the central axis 3a, the movable portion 353s moves in the second direction with respect to the second support portion 332. Then, the backup roller 353 moves away from the position 3b. The movement of the central axis 3a in this way selectively realizes both the positional relationship exemplified in FIG. 7 and the positional relationship shown in FIG. 8, and by extension, the attachment / detachment of the bottle 8 to / from the bottle holding device 300. Contribute to.
　上述された実施の形態においては、可動部３５３ｓへの外力の印加には当接部材３０４が採用される。当接部材３０４はボトル保持装置３００が転写ユニット３および硬化ユニット４へ近接する際に、可動部３５３ｓへ当接して可動部３５３ｓを第２方向へ移動させる。このような当接部材３０４を用いる代わりに、あるいはこれと共に、アクチュエータが用いられて中心軸３ａが移動してもよい。 In the above-described embodiment, the contact member 304 is adopted for applying an external force to the movable portion 353s. When the bottle holding device 300 approaches the transfer unit 3 and the curing unit 4, the contact member 304 comes into contact with the movable portion 353s and moves the movable portion 353s in the second direction. Instead of using such an abutting member 304, or in combination with it, an actuator may be used to move the central axis 3a.
　当接部材３０４が採用されるとき、印刷システム１００は、ボトル保持装置３００の他、ブランケット３２と、硬化ユニット４と、当接部材３０４とを備えるということができる。 When the abutting member 304 is adopted, the printing system 100 can be said to include the blanket 32, the curing unit 4, and the abutting member 304 in addition to the bottle holding device 300.
　ブランケット３２は、回転対称軸８００を中心に回転するボトル８の側面８０に当接して、側面８０へインクを転写する。硬化ユニット４は、インクの粘度を増大させる光を側面８０に照射する光源である。 The blanket 32 abuts on the side surface 80 of the bottle 8 that rotates about the axis of rotational symmetry 800, and transfers the ink to the side surface 80. The curing unit 4 is a light source that irradiates the side surface 80 with light that increases the viscosity of the ink.
　ブランケット３２はブランケット胴３１と共にブランケットロール３０に備えられる。ブランケット胴３１はシャフト３０１によって回転駆動され、軸受け部３０３はシャフト３０１を回転自在に軸支する。硬化ユニット４および当接部材３０４は軸受け部３０３に固定される。ボトル保持装置３００はブランケット３２および硬化ユニット４へ近接する。ブランケット３２と硬化ユニット４と当接部材３０４とは、三者の相対位置を変えることなく相対的にボトル保持装置３００へ近接する。 The blanket 32 is provided on the blanket roll 30 together with the blanket body 31. The blanket body 31 is rotationally driven by the shaft 301, and the bearing portion 303 rotatably supports the shaft 301. The curing unit 4 and the contact member 304 are fixed to the bearing portion 303. The bottle holding device 300 is close to the blanket 32 and the curing unit 4. The blanket 32, the curing unit 4, and the contact member 304 are relatively close to the bottle holding device 300 without changing the relative positions of the three.
　ブランケット３２が側面８０に当接するまでに、当接部材３０４が可動部３５３ｓに当接し、第２方向に沿った外力を中心軸３ｒに働かせる。バックアップローラ３５３は位置３ｂから離れる（図６、図８、図１１参照）ので、バックアップローラ３５３およびシャフト３５３ｒは、硬化ユニット４からの光の照射を阻害しにくい。 By the time the blanket 32 comes into contact with the side surface 80, the contact member 304 comes into contact with the movable portion 353s, and an external force along the second direction is applied to the central shaft 3r. Since the backup roller 353 is separated from the position 3b (see FIGS. 6, 8 and 11), the backup roller 353 and the shaft 353r are less likely to block the irradiation of light from the curing unit 4.
　［実施の形態２］
　図１２は実施の形態２にかかるボトル保持装置３００の構成を、ボトル保持装置３００に保持されたボトル８と共に例示する側面図である。図１２において紙面手前向きが（＋Ｙ）方向に対応し、上向きが（＋Ｚ）方向に対応する。 [Embodiment 2]
FIG. 12 is a side view illustrating the configuration of the bottle holding device 300 according to the second embodiment together with the bottle 8 held by the bottle holding device 300. In FIG. 12, the front side of the paper corresponds to the (+ Y) direction, and the upward direction corresponds to the (+ Z) direction.
　実施の形態１において用いられた図５では、バックアップローラ３５１，３５２，３５３のＸ方向における位置がほぼ等しい場合が例示された。実施の形態２にかかるボトル保持装置３００においては、バックアップローラ３５１，３５２，３５３のＸ方向における位置が互いに異なる場合が例示される。 In FIG. 5 used in the first embodiment, a case where the positions of the backup rollers 351 and 352 and 353 in the X direction are substantially equal is exemplified. In the bottle holding device 300 according to the second embodiment, a case where the positions of the backup rollers 351 and 352 and 353 in the X direction are different from each other is exemplified.
　これをより概括的に説明すると、図７で例示された位置１ｂ，２ｂ，３ｂのうちのいずれか二つは、互いに第１方向における位置が異なる、といる。このような配置は、転写の際にボトル８がブランケット３２から受ける押圧をＸ方向において均一化することに寄与する。 To explain this more generally, it is said that any two of the positions 1b, 2b, and 3b exemplified in FIG. 7 have different positions in the first direction from each other. Such an arrangement contributes to equalizing the pressure that the bottle 8 receives from the blanket 32 during transfer in the X direction.
　実施の形態１，２のいずれにおいても、第１保持部３１０は、バックアップローラ３５１，３５２，３５３のいずれに対しても第１方向に沿った一方側、ここでは（－Ｘ）方向側に位置する。このような位置関係は、転写の際に、側面８０が第１方向に非平行な方向、例えば第２方向や第３方向へ付勢されにくくし、ボトル８が安定して保持されやすい。例えばバックアップローラ３５１，３５２，３５３のうち最も（－Ｘ）方向側に位置するものは、ボトル８のＸ方向における中央よりも底部８２側に位置する。 In any of the first and second embodiments, the first holding portion 310 is located on one side of the backup rollers 351 and 352 and 353 along the first direction, in this case, on the (-X) direction side. do. Such a positional relationship makes it difficult for the side surface 80 to be urged in a direction non-parallel to the first direction, for example, in the second direction or the third direction during transfer, and the bottle 8 is easily held stably. For example, among the backup rollers 351 and 352, 353, the one located on the most (-X) direction side is located on the bottom 82 side of the bottle 8 in the X direction.
　例えば中心軸１ｒが第１方向に平行であって、バックアップローラ３５１がシャフト３５１ｒに沿って第１方向およびこれと反対の方向に可動である。バックアップローラ３５２，３５３よりも第１保持部３１０から離れた位置にバックアップローラ３５１が配置されることによって、ボトル８の高さが高い場合にもボトル保持装置３００がボトル８を保持しやすい。あるいはバックアップローラ３５１がバックアップローラ３５２，３５３と第１保持部３１０との間、例えばそれらの間の中央付近に配置されることによって、ボトル保持装置３００がボトル８を保持しやすい。 For example, the central axis 1r is parallel to the first direction, and the backup roller 351 is movable in the first direction and the opposite direction along the shaft 351r. By arranging the backup roller 351 at a position farther from the first holding portion 310 than the backup rollers 352 and 353, the bottle holding device 300 can easily hold the bottle 8 even when the height of the bottle 8 is high. Alternatively, the backup roller 351 is arranged between the backup rollers 352 and 353 and the first holding portion 310, for example, near the center between them, so that the bottle holding device 300 can easily hold the bottle 8.
　バックアップローラ３５１が第１方向に沿って可動であることに代えて、あるいはこれと共に、中心軸２ｒ，３ｒが第１方向に平行であって、バックアップローラ３５２，３５３が第１方向およびこれと反対の方向に沿って可動であってもよい。 Instead of or with the backup rollers 351 being movable along the first direction, the central axes 2r, 3r are parallel to the first direction and the backup rollers 352,353 are in the first direction and vice versa. It may be movable along the direction of.
　［第１の変形］
　実施の形態１，２において、中心軸１ｒ，２ｒ，３ｒは必ずしも第１方向に平行でなくてもよい。図１３は中心軸１ｒ，２ｒ，３ｒが回転対称軸８００と非平行な場合の、ボトル８とバックアップローラ３５１，３５２，３５３との位置関係を例示する斜視図である。 [First transformation]
In the first and second embodiments, the central axes 1r, 2r, and 3r do not necessarily have to be parallel to the first direction. FIG. 13 is a perspective view illustrating the positional relationship between the bottle 8 and the backup rollers 351, 352, 353 when the central axes 1r, 2r, and 3r are not parallel to the rotational symmetry axis 800.
　実施の形態１，２と同様、バックアップローラ３５１，３５２，３５３はそれぞれシャフト３５１ｒ，３５２ｒ，３５３ｒに設けられる。中心軸１ｒ，２ｒ，３ｒを中心としてシャフト３５１ｒ，３５２ｒ，３５３ｒが回転自在である。側面８０がその回転対称軸８００を中心として回転しても、実施の形態１，２と同様にバックアップローラ３５１，３５２，３５３はそれぞれ位置１ｂ，２ｂ，３ｂにおいて、側面８０と当接する。 Similar to the first and second embodiments, the backup rollers 351 and 352 and 353 are provided on the shafts 351r, 352r and 353r, respectively. The shafts 351r, 352r, and 353r are rotatable around the central axes 1r, 2r, and 3r. Even if the side surface 80 rotates about the axis of rotational symmetry 800, the backup rollers 351, 352, 353 abut with the side surface 80 at positions 1b, 2b, and 3b, respectively, as in the first and second embodiments.
　例えば、バックアップローラ３５１，３５２，３５３は円筒形ではなく、円錐台もしくは円錐台同士をそれらの底面において合体させた形状であってもよい。 For example, the backup rollers 351, 352, 353 may not be cylindrical, but may have a truncated cone or a shape in which the truncated cones are united on their bottom surfaces.
　［第２の変形］
　転写の際にバックアップローラ３５３は必ずしも移動しなくてもよい。図１４は転写の際におけるボトル８とバックアップローラ３５１，３５２，３５３と、ブランケットロール３０との位置関係を模式的に例示する側面図である。図１４において紙面手前向きが（＋Ｘ）方向に対応し、上向きが（＋Ｚ）方向に対応する。 [Second variant]
The backup roller 353 does not necessarily have to move during transfer. FIG. 14 is a side view schematically illustrating the positional relationship between the bottle 8, the backup rollers 351 and 352, 353, and the blanket roll 30 during transfer. In FIG. 14, the front side of the paper corresponds to the (+ X) direction, and the upward direction corresponds to the (+ Z) direction.
　同様の位置関係を示す図６と対比して、硬化ユニット４の位置が相違する。図１４には転写におけるボトル８の回転方向Ｒが追記される。回転方向Ｒにおいて、側面８０のうちブランケット３２と当接する部位８６、位置３ｂ、位置１ｂ、位置２ｂがこの順に並ぶ。回転方向Ｒにおいて部位８６から位置３ｂに至るまでに硬化ユニット４から側面８０に光が照射される。 The position of the curing unit 4 is different from that of FIG. 6, which shows the same positional relationship. In FIG. 14, the rotation direction R of the bottle 8 in the transfer is added. In the rotation direction R, the portion 86, the position 3b, the position 1b, and the position 2b of the side surface 80 that come into contact with the blanket 32 are arranged in this order. Light is irradiated from the curing unit 4 to the side surface 80 from the portion 86 to the position 3b in the rotation direction R.
　このような位置関係により、部位８６で転写されたインクはバックアップローラ３５３と接触するまでに当該光によって粘度が増大する。バックアップローラ３５１，３５２，３５３のいずれにもインクが二次的に転写されることが抑制される。 Due to such a positional relationship, the viscosity of the ink transferred at the portion 86 increases due to the light before it comes into contact with the backup roller 353. It is suppressed that the ink is secondarily transferred to any of the backup rollers 351 and 352 and 353.
　以上、実施形態およびその変形例にかかる保持装置および印刷システムについて説明したが、これらは好ましい実施形態の例であって、実施の範囲を限定するものではない。本実施の形態は、その開示の範囲内において、各実施形態の自由な組み合わせ、あるいは各実施形態の任意の構成要素の変形、もしくは各実施形態において任意の構成要素の省略が可能である。 Although the holding device and the printing system according to the embodiment and its modifications have been described above, these are examples of preferred embodiments and do not limit the scope of implementation. Within the scope of the disclosure of the present embodiment, any combination of the embodiments can be freely combined, any component of the embodiment can be modified, or any component can be omitted in each embodiment.
　１ａ，２ａ，３ａ　中心軸
　１ｂ，２ｂ，３ｂ，３ｃ　位置
　１ｒ，２ｒ，３ｒ　中心軸
　４　硬化ユニット
　８　ボトル
　９　制御装置
　３２　ブランケット
　３８，３９　三角形
　８０　側面
　８６　部位
　１００　印刷システム
　３００　ボトル保持装置
　３０４　当接部材
　３１０　第１保持部
　３５１，３５２，３５３　バックアップローラ
　３５１ｒ，３５２ｒ，３５３ｒ　シャフト
　８００　回転対称軸
　Ｒ　回転方向 1a, 2a, 3a Central axis 1b, 2b, 3b, 3c Position 1r, 2r, 3r Central axis 4 Curing unit 8 Bottle 9 Control device 32 Blanket 38, 39 Triangle 80 Side side 86 Part 100 Printing system 300 Bottle holding device 304 Contact Member 310 First holding part 351,352,353 Backup roller 351r, 352r, 353r Shaft 800 Rotational symmetry axis R Rotational direction

Claims (9)

  1. 　回転対称の形状を呈する被印刷面を有する対象を保持する保持装置であって、
    　第１軸を中心として回転自在であって、少なくとも一部が前記第１軸を中心とする円環状を呈する第１部材と、
    　第２軸を中心として回転自在であって、少なくとも一部が前記第２軸を中心とする円環状を呈する第２部材と、
    　第３軸を中心として回転自在であって、少なくとも一部が前記第３軸を中心とする円環状を呈する第３部材と、
    　前記被印刷面の回転対称軸を中心として回転自在に前記対象を保持する第１保持部と
    を備え、
    　前記回転対称軸に平行な第１方向に沿って見て、前記第１部材が前記対象と当接する第１位置と、前記第２部材が前記対象と当接する第２位置と、前記第３部材が前記対象と当接する第３位置とが形成する三角形は前記回転対称軸を囲む保持装置。     A holding device for holding an object having a surface to be printed having a rotationally symmetric shape.
    A first member that is rotatable about the first axis and at least partly exhibits an annular shape centered on the first axis.
    A second member that is rotatable about the second axis and at least partly exhibits an annular shape centered on the second axis.
    A third member that is rotatable about a third axis and at least partly exhibits an annular shape centered on the third axis.
    It is provided with a first holding portion that rotatably holds the object about the axis of rotational symmetry of the printed surface.
    When viewed along the first direction parallel to the axis of rotational symmetry, the first position where the first member abuts on the object, the second position where the second member abuts on the object, and the third member. The triangle formed by the third position in contact with the object is a holding device surrounding the axis of rotational symmetry.
  2. 　前記第３軸は可動であって、
    　前記第３軸が第４位置にあるときには前記第３部材は前記第３位置を占め、
    　前記第３軸が前記第４位置とは異なる位置にあるときには、前記第１方向に沿って見て前記回転対称軸は、前記第１位置と、前記第２位置と、前記第３部材のうち前記回転対称軸に最も近い位置とが形成する三角形から外れる、請求項１に記載の保持装置。     The third axis is movable,
    When the third axis is in the fourth position, the third member occupies the third position.
    When the third axis is at a position different from the fourth position, the axis of rotational symmetry is the first position, the second position, and the third member when viewed along the first direction. The holding device according to claim 1, wherein the position closest to the axis of rotational symmetry deviates from the formed triangle.
  3. 　前記第３軸は可動であって、
    　前記第３軸が第４位置にあるときには前記第３部材は前記第３位置を占め、
    　前記第３軸が前記第４位置とは異なる位置にあるときには、前記第１方向に沿って見て、前記第２位置と、前記第３部材のうち前記第２位置に最も近い位置との間の距離が、所定間隔よりも広く、
    　前記所定間隔は、前記第１位置と前記第２位置と前記第３位置とが規定する円の直径である、請求項１に記載の保持装置。     The third axis is movable,
    When the third axis is in the fourth position, the third member occupies the third position.
    When the third axis is at a position different from the fourth position, between the second position and the position closest to the second position of the third member when viewed along the first direction. The distance is wider than the predetermined interval,
    The holding device according to claim 1, wherein the predetermined interval is the diameter of a circle defined by the first position, the second position, and the third position.
  4. 　前記第１保持部は、前記第１部材、前記第２部材、前記第３部材のいずれに対しても前記第１方向に沿った一方側に位置する、請求項１から請求項３のいずれか一つに記載の保持装置。 Any one of claims 1 to 3, wherein the first holding portion is located on one side of the first member, the second member, and the third member along the first direction. The holding device described in one.
  5. 　前記第１位置、前記第２位置、前記第３位置のいずれか二つは、互いに前記第１方向における位置が異なる、請求項１から請求項４のいずれか一つに記載の保持装置。 The holding device according to any one of claims 1 to 4, wherein any two of the first position, the second position, and the third position are different from each other in the positions in the first direction.
  6. 　前記第１軸は前記第１方向に平行であって、前記第１部材が前記第１方向に沿って可動である、請求項１から請求項５のいずれか一つに記載の保持装置。 The holding device according to any one of claims 1 to 5, wherein the first axis is parallel to the first direction and the first member is movable along the first direction.
  7. 　前記第３軸は前記第１方向と直交する第２方向および前記第２方向と反対の第３方向に沿って可動であり、
    　前記第３軸に対して前記第２方向に沿った外力が働かないときに前記第３部材は前記第３位置を含み、
    　前記第３軸に対して前記第２方向に沿った外力が働くときに前記第３部材は前記第３位置から離れる、請求項１から請求項６のいずれか一つに記載の保持装置。     The third axis is movable along a second direction orthogonal to the first direction and a third direction opposite to the second direction.
    The third member includes the third position when no external force along the second direction acts on the third axis.
    The holding device according to any one of claims 1 to 6, wherein the third member separates from the third position when an external force along the second direction acts on the third axis.
  8. 　請求項１から請求項６のいずれか一つに記載の保持装置と、
    　前記回転対称軸を中心に回転する前記対象の前記被印刷面に当接して、前記被印刷面へインクを転写するブランケットと、
    　前記インクの粘度を増大させる光を前記被印刷面に照射する光源と
    を備える印刷システムであって、
    　前記対象の回転方向において、前記被印刷面のうち前記ブランケットと当接する部位、前記第３位置、前記第１位置、前記第２位置がこの順に並び、
    　前記回転方向において前記部位から前記第３位置に至るまでに前記光源から前記被印刷面に前記光が照射される、印刷システム。     The holding device according to any one of claims 1 to 6, and the holding device.
    A blanket that abuts on the printed surface of the target that rotates about the axis of rotational symmetry and transfers ink to the printed surface.
    A printing system including a light source that irradiates the surface to be printed with light that increases the viscosity of the ink.
    In the rotation direction of the target, the portion of the surface to be printed that comes into contact with the blanket, the third position, the first position, and the second position are arranged in this order.
    A printing system in which the surface to be printed is irradiated with the light from the light source from the portion to the third position in the rotation direction.
  9. 　請求項７に記載の保持装置と、
    　前記回転対称軸を中心に回転する前記対象の前記被印刷面に当接して、前記被印刷面へインクを転写するブランケットと、
    　前記インクの粘度を増大させる光を前記被印刷面に照射する光源と、
    　当接部材と
    を備える印刷システムであって、
    　前記ブランケットと前記光源と前記当接部材とは、三者の相対位置を変えることなく相対的に前記保持装置へ近接し、
    　前記ブランケットが前記被印刷面に当接するまでに、前記当接部材が前記第２方向に沿った外力を前記第３軸に働かせて、前記第３部材を前記第３位置から離れさせる、印刷システム。     The holding device according to claim 7 and
    A blanket that abuts on the printed surface of the target that rotates about the axis of rotational symmetry and transfers ink to the printed surface.
    A light source that irradiates the printed surface with light that increases the viscosity of the ink,
    A printing system equipped with an abutting member,
    The blanket, the light source, and the contact member are relatively close to the holding device without changing the relative positions of the three parties.
    A printing system in which the contact member exerts an external force along the second direction on the third axis to separate the third member from the third position by the time the blanket abuts on the surface to be printed. ..
PCT/JP2021/030501 2020-09-01 2021-08-20 Holding device and printing system WO2022050076A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-146861 2020-09-01
JP2020146861A JP2022041579A (en) 2020-09-01 2020-09-01 Holding device and printing system

Publications (1)

Publication Number Publication Date
WO2022050076A1 true WO2022050076A1 (en) 2022-03-10

Family

ID=80490805

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/030501 WO2022050076A1 (en) 2020-09-01 2021-08-20 Holding device and printing system

Country Status (3)

Country Link
JP (1) JP2022041579A (en)
TW (1) TWI791275B (en)
WO (1) WO2022050076A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250709A (en) * 1989-03-22 1990-10-08 Toyo Seikan Kaisha Ltd Method and device for cutting cylindrical body
US5388683A (en) * 1993-07-16 1995-02-14 Owens-Illinois Plastic Products Inc. Decorating hollow containers
JP2013207060A (en) * 2012-03-28 2013-10-07 Sony Corp Structure forming apparatus, structure manufacturing method, and structure
JP2020029022A (en) * 2018-08-22 2020-02-27 株式会社Ｓｃｒｅｅｎホールディングス Printing method and printer
WO2020110618A1 (en) * 2018-11-29 2020-06-04 株式会社Ｓｃｒｅｅｎホールディングス Work holding device, printing system, and printing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6005471B2 (en) * 2012-08-27 2016-10-12 株式会社ミマキエンジニアリング Inkjet printer, printed material holding member, and printing method
JP7213041B2 (en) * 2018-09-06 2023-01-26 株式会社Ｓｃｒｅｅｎホールディングス printing method
CN111391480A (en) * 2020-03-21 2020-07-10 台州市莱恩克智能科技有限公司 Bottle lateral wall screen printing is with rotatory fixture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250709A (en) * 1989-03-22 1990-10-08 Toyo Seikan Kaisha Ltd Method and device for cutting cylindrical body
US5388683A (en) * 1993-07-16 1995-02-14 Owens-Illinois Plastic Products Inc. Decorating hollow containers
JP2013207060A (en) * 2012-03-28 2013-10-07 Sony Corp Structure forming apparatus, structure manufacturing method, and structure
JP2020029022A (en) * 2018-08-22 2020-02-27 株式会社Ｓｃｒｅｅｎホールディングス Printing method and printer
WO2020110618A1 (en) * 2018-11-29 2020-06-04 株式会社Ｓｃｒｅｅｎホールディングス Work holding device, printing system, and printing method

Also Published As

Publication number Publication date
TWI791275B (en) 2023-02-01
JP2022041579A (en) 2022-03-11
TW202210313A (en) 2022-03-16

Similar Documents

Publication Publication Date Title
JP6903010B2 (en) Digital press and method
JP7181066B2 (en) WORK HOLDING DEVICE, PRINTING SYSTEM AND PRINTING METHOD
EP2179853A1 (en) Apparatus and process for printing of cylindrical or conical surfaces
WO2013099817A1 (en) Image forming system, image forming apparatus, and method of manufacturing can body
WO2022050076A1 (en) Holding device and printing system
JPH08300620A (en) Printing device for container having circular crosssection
JP6663367B2 (en) Rotary transfer device for labeling machine
WO2020050074A1 (en) Printing method
EP2836450B1 (en) Medium loading device and recording apparatus
WO2022044455A1 (en) Rotation position adjustment device and printing system
WO2022092016A1 (en) Printing device and printing method
KR100619058B1 (en) Thermal printer
JP2000296823A (en) Label expansion mechanism and label application device having label expansion mechanism
US10639908B2 (en) System and method for producing an image on an article
KR100694103B1 (en) Thermal printer
WO2019130738A1 (en) Printing apparatus and transfer roller
JPH06286120A (en) Printing coating device
US20210300088A1 (en) Modular multi enhancement printing system
JP2020179614A (en) Printing system and printing method
JP3024976B2 (en) Multicolor offset printing press for flat plate and printing system using the same
JP2008230194A (en) Manufacturing method of letterpress and offset printing device
JP3694925B2 (en) Cylindrical base material supply apparatus and cylindrical base material supply method
JP2001080028A (en) Printing device
JPH0416944A (en) Pressure developing device
JPH11179256A (en) Viscous fluid coater

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21864134

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21864134

Country of ref document: EP

Kind code of ref document: A1