WO2020017125A1 - Dispositif de bateau à eau et machine d'impression - Google Patents

Dispositif de bateau à eau et machine d'impression Download PDF

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Publication number
WO2020017125A1
WO2020017125A1 PCT/JP2019/017367 JP2019017367W WO2020017125A1 WO 2020017125 A1 WO2020017125 A1 WO 2020017125A1 JP 2019017367 W JP2019017367 W JP 2019017367W WO 2020017125 A1 WO2020017125 A1 WO 2020017125A1
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WO
WIPO (PCT)
Prior art keywords
roller
water
watercraft
dampening
printing press
Prior art date
Application number
PCT/JP2019/017367
Other languages
English (en)
Japanese (ja)
Inventor
隆史 新開
英治 奥薗
閲男 加藤
浅尾　栄次
一雄 山田
豊 神
Original Assignee
パナソニックＩｐマネジメント株式会社
テクノロール株式会社
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 パナソニックＩｐマネジメント株式会社, テクノロール株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2020017125A1 publication Critical patent/WO2020017125A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • B41F7/06—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs for printing on sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/32—Ducts, containers, or like supply devices for liquids

Definitions

  • the present invention relates to a watercraft device for supplying dampening water and a printing machine provided with the watercraft device.
  • various rollers such as an ink roller, a plate cylinder, a blanket, and an impression cylinder have been used in a lithographic offset printing press.
  • a plurality of ink rollers are arranged between the ink reservoir and the plate cylinder, and guide the ink from the ink reservoir to the plate cylinder while being in rotational contact with the ink.
  • the printing press is provided with a configuration for guiding the dampening solution to the plate cylinder.
  • a watercraft device is installed as a source of dampening water, and dampening water is supplied to the plate cylinder from the watercraft device via a plurality of rollers.
  • Patent Document 1 describes a watercraft device provided with a dampening water cooling mechanism.
  • a pipe is attached so as to be in contact with the outer bottom surface of the watercraft, and a cooling medium flows through the pipe.
  • the cooling medium is stored in the tank while being cooled by the refrigerator.
  • the temperature of the dampening solution is measured by a temperature sensor. When the temperature of the dampening solution rises, the temperature of the cooling medium is lowered by the refrigerator, and the dampening solution is cooled. Thereby, the fountain solution in the watercraft is maintained at a predetermined temperature.
  • Patent Document 1 requires a refrigerator for cooling the cooling medium and a tank for storing the cooling medium. For this reason, the cost of the watercraft device increases, and the space for arranging these devices increases the size of the watercraft device.
  • piping is provided on the outer bottom surface of the watercraft, the configuration of the watercraft device is complicated.
  • the outer bottom surface of the watercraft is cooled, there is a temperature difference between the dampening water near the bottom of the watercraft and the vicinity of the fountain roller. Cooling and temperature control may not be possible.
  • an object of the present invention is to provide a watercraft device capable of appropriately controlling the temperature of dampening water with a simple configuration, and a printing machine including the same.
  • the first aspect of the present invention relates to a watercraft device.
  • the watercraft device includes a watercraft for storing dampening water, a water source roller that rotates in contact with the dampening water stored in the watercraft, and a water source roller installed inside the water source roller. And a thermoelectric converter for controlling the temperature of the water supply roller.
  • thermoelectric converter is disposed inside the water roller, it is not necessary to separately provide a refrigerator or a tank around the water roller and the watercraft. Also, there is no need for a pipe for sending dampening water from the watercraft to the refrigerator or the tank. Therefore, the configuration of the watercraft device can be simplified, and the size and cost of the watercraft device can be reduced.
  • the temperature of the fountain roller is controlled by the thermoelectric converter, the temperature of the fountain solution is adjusted in a process in which the fountain solution contacts the fountain roller and is transferred. Therefore, dampening water can be supplied to the plate cylinder or the like at an appropriate temperature.
  • a printing press according to a second aspect includes the watercraft device according to the first aspect, and a plate cylinder to which dampening water is supplied from the watercraft device and ink is supplied from an ink reservoir.
  • the size and cost of the printing press can be reduced.
  • the temperature of the dampening solution can be properly controlled, printing can be performed with higher quality.
  • FIG. 1 is a diagram schematically illustrating a configuration of a printing press according to an embodiment.
  • FIG. 2A is a side view schematically illustrating the configuration near the plate cylinder of the printing unit according to the embodiment.
  • FIG. 2B is a perspective view illustrating a configuration of the watercraft according to the embodiment.
  • FIG. 2C is a diagram schematically illustrating a printing method of the printing unit according to the embodiment.
  • FIG. 3A is a diagram illustrating a configuration of a water source roller according to the embodiment.
  • FIG. 3B is a diagram illustrating a state in which a water roller is installed on a frame according to the embodiment.
  • FIGS. 4A and 4B are diagrams schematically illustrating a state in which the roller body is viewed from the cooling air outlet side according to the embodiment.
  • FIG. 5 is a partially exploded perspective view showing a structure including an upper heat sink, a thermoelectric converter, and a heat pipe and a press-fit member according to the embodiment.
  • FIG. 6A is an exploded perspective view schematically illustrating a configuration of a part of the thermoelectric converter according to the embodiment.
  • FIG. 6B is a perspective view schematically illustrating a configuration in a state where the thermoelectric converter according to the embodiment is substantially assembled.
  • FIG. 7 is a side view illustrating the configuration of the watercraft device according to the embodiment.
  • FIG. 8A is a perspective view illustrating a configuration of an exhaust unit according to the embodiment.
  • FIG. 8B is a perspective view illustrating the configuration of the exhaust unit according to the embodiment with the chamber removed.
  • FIG. 9 is a cross-sectional view of the exhaust unit cut along a plane passing through a central axis of the exhaust unit according to the embodiment.
  • FIG. 10 is a cross-sectional view schematically illustrating a configuration near a water roller according to the embodiment.
  • FIGS. 11A and 11B are cross-sectional views schematically illustrating a configuration near a water roller according to a modification.
  • FIG. 1 is a diagram schematically showing the configuration of the printing press 1.
  • a configuration example of the printing press 1 that performs printing on one side of the printing paper P10 is shown.
  • the printing press 1 includes a paper feed unit 2, four printing units 3, and an accumulation unit 4.
  • the paper feeding unit 2 stores printing paper P10 of a predetermined size, which is an object to be printed, and sequentially sends out the stored printing paper P10 to the printing unit 3 closest to the Y-axis negative side.
  • the printing paper P10 sent from the paper feeding unit 2 is sequentially sent to the four printing units 3 by the transport mechanism of each printing unit 3.
  • the four printing units 3 print a pattern image of a predetermined color on the printing paper P10 sent from the paper feeding unit 2, respectively.
  • the four printing units 3 respectively print yellow, cyan, magenta, and black pattern images on printing paper P10.
  • Each of the three printing units 3 on the negative side of the Y-axis sends out the printed printing paper P10 to the adjacent printing units 3 in the positive Y-axis direction by the transport mechanism.
  • the printing unit 3 on the Y axis positive side sends out the printed printing paper P10 to the stacking unit 4 by the transport mechanism.
  • the stacking unit 4 sequentially conveys the sent printing paper P10 to the stacking unit.
  • the printing paper P10 on which printing of all colors has been completed is stacked on the stacking unit 4.
  • Each printing unit 3 includes an ink reservoir 3a for storing ink of each color.
  • Each printing unit 3 includes four ink rollers 10, a plate cylinder 21, a blanket 22, and an impression cylinder 23.
  • the ink roller 10, plate cylinder 21, blanket 22, and impression cylinder 23 each have a columnar shape, and rotate in a direction parallel to the YZ plane about a rotation axis parallel to the X axis.
  • the four ink rollers 10 guide the ink from the ink reservoir 3a to the plate cylinder 21 while rotatingly contacting the ink.
  • the ink guided to the plate cylinder 21 is printed on the outer peripheral surface of the plate cylinder 21 in a predetermined drawing pattern.
  • the ink printed on the outer peripheral surface of the plate cylinder 21 is transferred to the blanket 22 at a contact position between the plate cylinder 21 and the blanket 22.
  • the ink transferred to the blanket 22 in this manner is transferred to the printing paper P10 sent between the blanket 22 and the impression cylinder 23.
  • FIG. 2A is a side view schematically showing a configuration near the plate cylinder 21 of the printing unit 3.
  • FIG. 2B is a diagram illustrating a configuration of the watercraft 24.
  • FIG. 2C is a diagram schematically illustrating a printing method of the printing unit 3.
  • the printing unit 3 further includes a watercraft 24, a water source roller 25, rubber rollers 26 and 28, and an intermediate roller 27 at a position close to the plate cylinder 21.
  • the water roller 25 and the intermediate roller 27 have members that form the outer peripheral surface made of a metal material such as copper or aluminum.
  • members constituting the outer peripheral surface are made of a rubber material.
  • the watercraft 24 has a boat-like shape having an arc-shaped concave portion 24a formed on the upper surface.
  • the recess 24a is curved only in a direction parallel to the YZ plane.
  • the curvature of the concave portion 24a is constant at all positions in the X-axis direction. That is, the concave portion 24a is configured such that the inner side surface is aligned with a predetermined cylindrical surface.
  • the X-axis positive / negative ends of the concave portion 24a are smoothly connected to the wall surface 24b via the inclined surface 24c.
  • the wall surface 24b is perpendicular to the X axis.
  • the width of the concave portion 24a in the X-axis direction is slightly larger than the body of the water source roller 25, that is, the width of the roller body 25a in the X-axis direction described later.
  • the watercraft 24 stores the dampening water A20 in the concave portion 24a.
  • the dampening solution A20 is a mixture of tap water and an etchant.
  • the dampening water A20 is supplied from the dampening water supplier 30 to the watercraft 24.
  • dampening solution A20 is supplied to recess 24a from a supply port (not shown) formed on the bottom surface or side surface of watercraft 24.
  • the fountain roller 25 is fitted in the concave portion 24a while being separated from the inner side surface of the concave portion 24a. That is, a part of the water roller 25 on the negative side of the Z axis is fitted in the concave portion 24a with a predetermined gap.
  • the radius of curvature of the water source roller 25 is smaller than the radius of curvature of the concave portion 24a.
  • the two rubber rollers 26, 28, and the intermediate roller 27 rotate in the directions of the arrows shown in FIG. It is applied to the outer peripheral surface of the plate cylinder 21 along the rollers. At this time, the intermediate roller 27 is swung in the radial direction, and the dampening solution A20 propagating from the rubber roller 26 to the rubber roller 28 is leveled. Thereby, the dampening solution A20 is evenly applied to the plate cylinder 21.
  • a plate for drawing is installed on the outer peripheral surface of the plate cylinder 21 in advance.
  • the printing plate is configured such that dampening solution A20 adheres to the non-drawing portion. Therefore, the dampening solution A20 applied to the outer peripheral surface of the plate cylinder 21 by the fountain roller 25, the two rubber rollers 26 and 28, and the intermediate roller 27 remains only in the non-drawing portion and does not remain in the drawing portion. Therefore, the ink A10 guided from the ink roller 10 to the outer peripheral surface of the plate cylinder 21 adheres only to the drawing portion of the outer peripheral surface of the plate cylinder 21 where no dampening solution A20 remains.
  • FIG. 2C shows a state where the ink A10 and the dampening solution A20 adhere to the outer peripheral surface of the plate cylinder 21.
  • the ink A10 printed on the outer peripheral surface of the plate cylinder 21 in the above process is transferred to the blanket 22 as described above, and then transferred to the printing paper P10.
  • a pattern image corresponding to the plate attached to the outer peripheral surface of the plate cylinder 21 is printed on the printing paper P10.
  • the dampening solution A20 serves to attach the ink A10 to the outer peripheral surface of the plate cylinder 21 and also cools the plate cylinder 21 and adjusts the temperature of the plate cylinder 21 to a predetermined temperature. It also plays a role.
  • the ink roller 10 is rotated about an axis parallel to the X axis while being driven in the X axis direction by a drive mechanism (not shown).
  • a drive mechanism not shown.
  • the dampening solution A20 plays a role of cooling the plate cylinder 21 by being applied to the plate cylinder 21. Therefore, the dampening solution A20 needs to be adjusted to a predetermined temperature so that the plate cylinder 21 can be cooled efficiently.
  • thermoelectric converter 500 is installed inside the water supply roller 25, and the water supply roller 25 is cooled by the thermoelectric converter 500. Thereby, the dampening solution A20 is cooled when coming into contact with the fountain roller 25, and is adjusted to an appropriate temperature range.
  • a supply port (not shown) for supplying dampening water A20 is formed on the bottom or side surface of the watercraft 24, but a discharge port for discharging dampening water A20 from the watercraft 24 is formed. Not done. This is because the dampening water A20 in the watercraft 24 can be directly cooled by the water source roller 25, so that a refrigerator or a tank for cooling the dampening water A20 becomes unnecessary, and the dampening water from the watercraft 24 to the refrigerator or the tank is eliminated. This is because no pipe for sending A20 is required.
  • FIG. 3A is a diagram illustrating the configuration of the water supply roller 25.
  • the water source roller 25 includes a roller main body 25a and support members 25b and 25c.
  • the roller body 25a has a cylindrical structure.
  • the outer peripheral surface of the roller body 25a contacts the dampening solution A20.
  • the support members 25b and 25c are cylindrical members and have holes 25d and 25e penetrating in the X-axis direction.
  • the support members 25b and 25c are symmetrical with respect to a central axis parallel to the X axis.
  • the support members 25b and 25c are made of a metal material.
  • the support members 25b and 25c are mounted on the roller main body 25a so as to cover both ends of the roller main body 25a with circular flanges 25f and 25g. In FIGS. 3A and 3B, for convenience, screws for fixing the flanges 25f and 25g to both ends of the roller body 25a are omitted.
  • FIG. 3B is a view showing a state in which the water roller 25 is installed on the frames 41 and 42.
  • FIG. 3B shows a state in which the joints between the frames 41 and 42 and the support members 25b and 25c are seen through in the Y-axis direction.
  • the water source roller 25 is supported by the frames 41 and 42 by fitting the support members 25b and 25c into the bearings 41a and 42a.
  • the water source roller 25 is rotatable about an axis parallel to the X axis.
  • the water source roller 25 is rotated around an axis parallel to the X axis by a drive mechanism (not shown).
  • the thermoelectric converter is installed on the inner peripheral surface of the roller body 25a of the water source roller 25.
  • the heat of the outer peripheral surface of the roller main body 25a is moved to the inner peripheral side of the roller main body 25a by the thermoelectric converter.
  • cooling air is circulated inside the roller main body 25a via the support members 25b and 25c, and heat transferred by the thermoelectric converter is removed.
  • the outer peripheral surface of the roller main body 25a is effectively cooled, and the dampening solution A20 in contact with the outer peripheral surface of the roller main body 25a is appropriately cooled.
  • FIGS. 4A and 4B are diagrams schematically illustrating a state where the roller main body 25a is viewed from the cooling air outlet side.
  • FIGS. 4A and 4B show the roller body 25a with the support members 25b and 25c removed.
  • FIG. 4A shows a state before the press-fitting member 400 is mounted.
  • the roller main body 25a includes a cylinder 100, a heat sink 200, a heat pipe 300, a press-fit member 400, and a thermoelectric converter 500.
  • the cylindrical body 100 has a cylindrical shape and is made of a metal material having excellent thermal conductivity, such as copper or aluminum.
  • the cylindrical body 100 is formed with a circular through-hole 101 penetrating in the X-axis direction.
  • the cylindrical body 100 has six screw holes 102 for screwing the support members 25b and 25c shown in FIG. 3A on the end surface on the X axis negative side and the end surface on the X axis positive side, respectively. Is provided.
  • 2Two heat sinks 200 each having the heat pipe 300 and the thermoelectric converter 500 mounted therein are accommodated in the through hole 101 of the cylindrical body 100.
  • the press-fitting member 400 is press-fitted between the two heat sinks 200.
  • the two heat sinks 200 are separated from each other and pressed against the inner surface of the through hole 101.
  • the two heat sinks 200 are fixed to the through holes 101 of the cylindrical body 100.
  • FIG. 5 is a partially exploded perspective view showing the structure including the upper heat sink 200, the thermoelectric converter 500, and the heat pipe 300, and the press-fit member 400.
  • the structure including the lower heat sink 200, the thermoelectric converter 500, and the heat pipe 300 is the same as that in FIG.
  • the heat sink 200 has a semi-cylindrical shape and is made of a material having excellent heat conduction properties such as copper and aluminum.
  • the length of the heat sink 200 is slightly shorter than the length of the cylinder 100.
  • the two heat sinks 200 have the same shape. When the two heat sinks 200 are vertically stacked, a substantially columnar structure is formed. The outer diameter of this structure is slightly smaller than the inner diameter of the cylinder 100.
  • the heat sink 200 has a top surface 201, two holes 202, a groove 203, a plurality of fins 204, and two recesses 205 integrally formed.
  • the top surface 201 is an arc-shaped curved surface. On this top surface 201, ten thermoelectric converters 500 are installed at substantially equal intervals. As described later, the thermoelectric converter 500 has a structure that can be bent in a direction parallel to the YZ plane. The thermoelectric converter 500 is installed on the top surface 201 by a bonding means such as an adhesive or heat radiation grease while being curved in a shape along the top surface 201.
  • a bonding means such as an adhesive or heat radiation grease
  • the two holes 202 have a circular shape, extend in the X-axis direction, and penetrate the heat sink 200.
  • the diameter of the hole 202 is slightly larger than the diameter of the heat pipe 300.
  • the two holes 202 are provided at symmetrical positions in the Y-axis direction.
  • a heat pipe 300 is inserted into each of the two holes 202 and attached.
  • the heat pipe 300 is inserted into the hole 202 so as to extend from near one end in the longitudinal direction of the heat sink 200 to near the other end. That is, the heat pipe 300 extends so as to cover all the installation positions of the ten thermoelectric converters 500 installed on the top surface 201 of the heat sink 200.
  • the heat pipe 300 is installed to make the temperature of the top surface 201 of the heat sink 200 uniform in the X-axis direction. As the working fluid circulates in the heat pipe 300 while repeating vaporization and liquefaction, heat moves from the high temperature part to the low temperature part. Thereby, the temperature of the top surface 201 of the heat sink 200 is made substantially uniform. By making the temperature of the top surface 201 uniform in this way, the temperatures of the heat radiation surfaces of the ten thermoelectric converters 500 become substantially the same, and the cooling capacity of all the thermoelectric converters 500 can be kept high.
  • the groove 203 is provided to regulate the position of the press-fitting member 400.
  • the groove 203 has a substantially V-shaped cross-sectional shape, and extends in the X-axis direction from the end surface on the X-axis negative side of the heat sink 200 to the end surface on the X-axis positive side.
  • the groove 203 has two flat surfaces 203a and 203b for receiving the press-fit member 400. When a virtual plane parallel to the XZ plane is set at the deepest position of the groove 203, the two planes 203a and 203b are inclined at substantially the same angle in directions opposite to each other with respect to this virtual plane.
  • the bottom of the groove 203 is slightly rounded.
  • a plurality of notches are formed substantially radially from the center of the bottom surface of the heat sink 200 in the Y-axis direction, so that a plurality of fins 204 are formed.
  • Each fin 204 extends in the X-axis direction from the end surface on the X-axis negative side of the heat sink 200 to the end surface on the X-axis positive side.
  • the recess 205 is provided to lead out a lead wire for supplying power to the thermoelectric converter 500.
  • the concave portion 205 has a shape in which the outer peripheral surface of the heat sink 200 is cut out in an arc shape.
  • the concave portion 205 extends in the X-axis direction from the end surface on the X-axis negative side of the heat sink 200 to the end surface on the X-axis positive side.
  • the lead wire drawn from each thermoelectric converter 500 is housed in the recess 205 and drawn out.
  • the press-fitting member 400 is a rod-shaped member having a circular cross section, and is made of a highly rigid material such as stainless steel. In the present embodiment, four press-fitting members 400 are used. The length of each press fitting member 400 is half the length of the heat sink 200. The four press-fitting members 400 have the same shape as each other.
  • the press-fitting member 400 has a conical shape in which the end 401 in the press-fitting direction becomes narrower toward the tip.
  • the two press-fit members 400 are arranged in one groove 203 of the heat sink 200 so as to be arranged in the X-axis direction. Therefore, the two press-fitting members 400 arranged in the X-axis direction are arranged so as to cover substantially the entire range of the heat sink 200 in the longitudinal direction.
  • FIG. 6A is an exploded perspective view schematically illustrating a configuration of a part of the thermoelectric converter 500
  • FIG. 6B is a schematic diagram illustrating a configuration in which the thermoelectric converter 500 is substantially assembled.
  • FIG. 6A and 6B x, y, and z axes orthogonal to each other are newly added for convenience.
  • the x-axis, y-axis, and z-axis directions are the vertical direction, the horizontal direction, and the thickness direction of the thermoelectric converter 500, respectively.
  • the thermoelectric converter 500 includes a substrate 501, an electrode 502, a thermoelectric conversion element 503, a lead wire 504, and an electrode 505.
  • the substrate 501 has a contour in which the corners of a square are rounded in plan view.
  • the substrate 501 is made of a material having excellent thermal conductivity and flexibility.
  • a thin copper plate can be used as the substrate 501.
  • the substrate 501 may be made of aluminum, silicon resin, epoxy resin, or the like.
  • An electrode 502 is provided on the upper surface of the substrate 501.
  • the electrode 502 is made of copper, aluminum, or the like.
  • an insulating layer is provided between the substrate 501 and the electrode 502.
  • the electrode 502 and the electrode 505 on the upper surface side are arranged so as to connect the thermoelectric converters 500 in series.
  • the thermoelectric conversion element 503 has a substantially cubic shape.
  • the thermoelectric conversion element 503 is an element that controls heat with electric power, such as a Peltier element.
  • the thermoelectric conversion elements 503 are arranged in a matrix in the y-axis direction and the x-axis direction.
  • the lower surface of thermoelectric conversion element 503 is joined to the upper surface of electrode 502 by solder.
  • Lead wires 504 are connected to the electrodes 502 on the y-axis positive and negative ends, respectively.
  • an electrode 505 is joined to the upper surface of the thermoelectric conversion element 503 by solder.
  • all the thermoelectric conversion elements 503 are connected in series to the two lead wires 504 via the electrodes 502 and 505.
  • a voltage is applied to all the thermoelectric conversion elements 503 via the electrodes 502 and 505.
  • thermoelectric conversion element 503 In place of the thermoelectric conversion element 503, four reinforcing members 506 each having substantially the same shape as the thermoelectric conversion element 503 are provided on the electrode 502 on the y-axis positive / negative end, respectively.
  • the reinforcing member 506 is for reinforcing the thermoelectric converter 500, and does not exhibit a temperature control action even when a voltage is applied to the lead wire 504.
  • a reinforcing plate 507 extending in the x-axis direction is provided on the upper surfaces of the reinforcing members 506. This makes it difficult for the thermoelectric converter 500 to bend in a direction parallel to the xz plane.
  • thermoelectric converter 500 is configured.
  • thermoelectric converter 500 When a voltage is applied to the thermoelectric converter 500 via the two lead wires 504, heat on the upper surface of the thermoelectric converter 500 moves to the lower surface of the thermoelectric converter 500 (the surface of the substrate 508 on the negative side of the Z axis). I do.
  • the polarity of each of the plurality of thermoelectric converters 500 installed on the substrate 501 is adjusted such that heat is transferred from the lower surface to the upper surface when a voltage is applied via the two lead wires 504.
  • thermoelectric converter 500 is located at the position P1 of the gap between the adjacent electrodes 502. , Yz plane. Thereby, thermoelectric converter 500 can be installed on top surface 201 so as to follow the shape of top surface 201 of heat sink 200.
  • thermoelectric converters 500 are installed on the top surface 201 of the heat sink 200, and further, the heat pipes 300 are attached to the two holes 202 of the heat sink 200, respectively. Be composed. Then, as shown in FIG. 4A, the two structures are inserted into the through-hole 101 of the cylindrical body 100 so as to overlap each other. Then, two press-fitting members 400 are press-fitted into the grooves 203 of each heat sink 200 from the X-axis positive side and the X-axis negative side. Thus, as shown in FIG. 4B, the assembly of the roller body 25a is completed.
  • the cooling air that has flowed into the cylinder 100 is discharged from the cylinder 100 through the gap between the fins 204.
  • the heat that has moved from the cylindrical body 100 to the thermoelectric converter 500 and further has moved from the thermoelectric converter 500 to the fins 204 is removed by the cooling air.
  • accumulation of heat on the heat radiation surface of the thermoelectric converter 500 is suppressed, and the cooling action of the thermoelectric converter 500 is maintained.
  • the cylinder 100 (the roller body 25a) is effectively cooled.
  • FIG. 7 is a side view showing the configuration of the watercraft device 29.
  • the watercraft device 29 includes an intake unit 60 and an exhaust unit 70 in addition to the water source roller 25 having the above configuration.
  • the intake unit 60 is installed on the side surface on the X axis positive side of the frame 42.
  • the intake unit 60 connects the end of the support member 25b on the X axis negative side to the duct 53.
  • the other end of the duct 53 is connected to the outside via an opening provided in the cover 51.
  • the intake unit 60 includes a motor 61 for rotating the roller body 25a of the water source roller 25 about a rotation center axis parallel to the X axis.
  • the cable drawn from the motor 61 is attached so as to extend downward along the inner surface of the cover 51, and is drawn out of the cover 51 at a predetermined drawing position.
  • the exhaust unit 70 is installed on the side surface on the X axis positive side of the frame 42.
  • the cable drawn from the thermoelectric converter 500 installed on the inner peripheral surface of the roller body 25a of the water source roller 25 is connected to a slip ring installed in the exhaust unit 70.
  • the cable pulled out from the slip ring is attached so as to extend downward along the inner surface of the cover 52, and is drawn out of the cover 52 at a predetermined drawing position.
  • the exhaust unit 70 connects the end on the X-axis positive side of the support member 25c and the duct 54, and the other end of the duct 54 is connected to a blower (not shown) via an opening provided in the cover 52. ing. Cooling air (air) is taken into the duct 53 from the outside by the suction force of the blower. Thereafter, the cooling air is guided to the water roller 25 via the intake unit 60, takes heat from the water roller 25, and is exhausted through the exhaust unit 70 and the duct 53.
  • a blower not shown
  • the configuration of the exhaust unit 70 will be described later with reference to FIGS. 8A and 8B and FIG.
  • the configuration of the intake unit 60 is the same as the configuration of the exhaust unit 70 except that the slip ring is replaced with a motor 61.
  • a region R1 is a region for supplying ink from the ink reservoir 3a to the plate cylinder 21, and regions R2 and R3 are ink rollers 10, the plate cylinder 21, the blanket 22, the impression cylinder 23, and the water source roller.
  • This is an area where a mechanism for driving the 25 and the like is arranged. Therefore, ink and fountain solution are filled in the region R1, and oil mist is generated in the regions R2 and R3.
  • the frames 41 and 42 and the covers 51 and 52 are barriers for separating these areas. Therefore, the intake unit 60 and the exhaust unit 70 need to have a configuration for allowing the cooling air to flow without leakage and a configuration for preventing the oil mist from entering inside.
  • FIG. 8A is a perspective view showing the configuration of the exhaust unit 70.
  • FIG. 8B is a perspective view showing the configuration of the exhaust unit 70 with the chamber 120 removed.
  • the exhaust unit 70 includes a hood member 110, a chamber 120, two support shafts 130, and two guide shafts 140.
  • the hood member 110 has a hollow cylindrical shape with both ends opened.
  • the support member 25c of the water roller 25 is fitted into the hood member 110 at the end on the X-axis negative side without a gap, and is connected to the support member 25c.
  • a coupling member 220 attached to the rotation shaft 213 (see FIG. 9) of the slip ring 210 is fitted to the end of the hood member 110 on the X-axis positive side, and the slip ring 210 is attached.
  • the hood member 110 covers an area between the rotation shaft 213 of the slip ring 210 and the end of the water roller 25.
  • the coupling member 220 is a disk-shaped member having substantially the same diameter as the inner diameter of the end of the hood member 110 on the X axis positive side. By fitting the coupling member 220 into the end of the hood member 110, the end of the hood member 110 is closed by the rotation shaft 213 of the slip ring 210 and the coupling member 220. On the side of the coupling member 220 on the negative side of the X-axis, a flange portion for collectively holding the cables drawn from the rotation shaft 213 of the slip ring 210 is provided.
  • the hood member 110 has an opening 111 formed therein.
  • the opening 111 is provided not only on the upper surface but also on the lower surface of the hood member 110.
  • the two openings 111 are provided at the same position in the longitudinal direction (X-axis direction).
  • a chamber 120 is mounted on the hood member 110 so as to cover these openings 111.
  • the chamber 120 includes a box portion 121 and a tube portion 122.
  • the box portion 121 has a substantially cubic shape, and the inside is hollow.
  • the cylindrical portion 122 has a cylindrical shape and is integrally formed on the upper surface of the box portion 121 so as to communicate with the inside of the box portion 121.
  • the duct 54 shown in FIG. 7 is connected to the cylindrical portion 122.
  • a circular hole 123 penetrating in the X-axis direction is formed in the box portion 121. That is, the two holes 123 are formed coaxially on the X-axis positive side surface and the X-axis negative side surface of the box portion 121, respectively.
  • the diameter of the hole 123 is substantially the same as or slightly larger than the outer diameter of the hood member 110.
  • the hood member 110 is passed through the hole 123.
  • An oil seal or an O-ring is preferably further provided to fill a gap between the hole 123 and the outer surface of the hood member 110.
  • the chamber 120 is fixed to the frame 42 by two support shafts 130. Specifically, a screw portion having a smaller diameter than the shaft portion of the support shaft 130 is provided at the end of the support shaft 130 on the X-axis positive side. Further, on the side surface on the X axis positive side of the box portion 121, support holes through which the screw portions of the support shaft 130 are passed are provided at diagonal positions. Further, on the side surface on the negative side of the X-axis of the box portion 121, the support holes through which the shaft portions of the support shafts 130 pass are respectively coaxial with the support holes on the X-axis positive side at diagonal positions. Is provided.
  • the screw portion and the shaft portion of the support shaft 130 are respectively passed through two support holes provided on the X axis positive side and the X axis negative side of the box portion 121, and the nut 131 is fixed to the screw portion from the X axis positive side. .
  • the end on the X axis negative side of the support shaft 130 is fixed to the frame 42.
  • the chamber 120 is fixed to the frame 42.
  • the slip ring 210 includes four holes 211 in a flange provided on the X axis negative side.
  • the guide shaft 140 is passed through two of the four holes 211 at diagonal positions, and a fastener 141 is attached to an end of the guide shaft 140.
  • the slip ring 210 is supported by the chamber 120 via the guide shaft 140.
  • the cable drawn from the rotation shaft 213 of the slip ring 210 (see FIG. 9) is connected to the cables connected to the plurality of thermoelectric converters 500 inside the water source roller 25 inside the hood member 110. Thereby, the electric power supplied to the cable 212 of the slip ring 210 is supplied to each thermoelectric converter 500 inside the water source roller 25.
  • the intake unit 60 also has the same configuration as in FIGS. 8 (a) and 8 (b).
  • the slip ring 210 is replaced with a motor 61.
  • the motor 61 is driven, the roller body 25a rotates together with the support member 25b, and at the same time, the rotation shaft 213 (see FIG. 9) of the slip ring 210 rotates together with the support member 25c.
  • the rotation of the water source roller 25 is performed.
  • FIG. 9 is a cross-sectional view of the exhaust unit 70 cut in a plane parallel to the XZ plane and passing through the central axis of the exhaust unit 70.
  • the flow of the cooling air is indicated by broken-line arrows.
  • the cooling air flowing into the hood member 110 from the inside of the water source roller 25 via the support member 25c is guided to the internal space of the chamber 120 through the opening 111 of the hood member 110.
  • the end on the X-axis positive side of the hood member 110 is closed by the coupling member 220 and the rotating shaft 213. That is, the inside of the hood member 110 is a closed space.
  • the cooling air flowing into the hood member 110 is efficiently guided from the opening 111 to the internal space of the chamber 120.
  • the cooling air is exhausted to the outside through the duct 54 connected to the cylindrical portion 122 of the chamber 120.
  • the cooling air flows inside the water source roller 25.
  • the hood member 110 Since the hood member 110 is inserted into the hole 123 of the chamber 120, the hood member 110 rotates along with the rotation shaft 213 of the slip ring 210 along the inner side surface of the hole 123 with the rotation of the ink roller 10. At this time, since the chamber 120 covers the entire periphery of the hood member 110 as shown in FIG. 8A, even if the hood member 110 makes one rotation, the hood member 110 The opening 111 does not come off the chamber 120.
  • the chamber 120 is configured to cover the entire movement range of the opening 111 of the hood member 110 that moves with the rotation of the water source roller 25. Therefore, during the printing operation, the cooling air can be smoothly circulated inside the water supply roller 25 while rotating the hood member 110 together with the water supply roller 25.
  • the intake unit 60 is configured similarly to the exhaust unit 70, even if the water source roller 25 rotates during the printing operation, the cooling air can be smoothly taken into the intake unit 60 via the duct 53, Further, the taken-in cooling air can be smoothly circulated from the intake unit 60 to the inside of the water supply roller 25.
  • FIG. 10 is a cross-sectional view schematically showing a configuration near the water supply roller 25.
  • FIG. 10 shows a state where the center position of the roller body 25a in the X-axis direction is cut along a plane parallel to the YZ plane. For convenience, hatching indicating a cross section is omitted in FIG.
  • a straight line (a straight line parallel to the X axis) that defines the center of curvature C10 of the inner side surface of the concave portion 24 a coincides with the rotation center axis R10 of the water source roller 25.
  • the watercraft 24 is disposed with respect to the water source roller 25.
  • the rotation center axis R10 coincides with the center axis of the roller main body 25a. Therefore, in this embodiment, the watercraft 24 and the water supply roller 25 are arranged such that the center axis of the water supply roller 25 and the center of curvature C10 of the inner surface of the concave portion 24a coincide.
  • the gap D2 between the concave portion 24a and the outer peripheral surface of the water roller 25 becomes constant at an arbitrary position of the concave portion 24a.
  • the outer diameter D1 of the roller body 25a of the water source roller 25 is, for example, about 80 to 100 mm
  • the gap D2 is, for example, about 5 to 8 mm. That is, the gap D2 is significantly smaller than the outer diameter D1 of the roller body 25a.
  • the dampening solution A20 stored in the concave portion 24a can be effectively stirred with the rotation of the roller body 25a. Thereby, the temperature of the dampening solution A20 stored in the concave portion 24a hardly varies, and the temperature of the dampening solution A20 can be made substantially uniform.
  • the dampening water A20 stored in the concave portion 24a is transferred to the thermoelectric conversion device installed on the inner surface of the roller main body 25a.
  • the container 500 can be cooled effectively, and the temperature difference of the stored dampening solution A20 can be substantially eliminated.
  • the dampening solution A20 stored in the recess 24a can be effectively cooled without a temperature difference.
  • the dampening solution A20 moves from the concave portion 24a to the outer peripheral surface of the roller main body 25a with the rotation of the roller main body 25a, and is transported in a state of being spread thinly on the outer peripheral surface of the roller main body 25a. Therefore, also in this transfer process, the dampening solution A20 is effectively cooled by the thermoelectric converter 500.
  • the appropriately cooled dampening solution A20 can be supplied to the plate cylinder 21. Therefore, the plate cylinder 21 can be appropriately cooled, and the printing performance of the printing press 1 can be improved.
  • thermoelectric converter 500 Since the thermoelectric converter 500 is disposed inside the water source roller 25, there is no need to separately provide a refrigerator or a tank for cooling the dampening water A20 around the water source roller 25 and the watercraft 24. . Further, a pipe for sending dampening water A20 from the watercraft 24 to the refrigerator or the tank is not required. Therefore, the configuration of the watercraft device 29 can be simplified, and the size and cost of the watercraft device 29 can be reduced. Further, since the configuration is such that the temperature of the fountain roller 25 is controlled by the thermoelectric converter 500, the temperature of the fountain solution A20 is efficiently and in the process of being transferred while the fountain solution A20 contacts the fountain roller 25. Can be adjusted stably. Therefore, the dampening solution A20 having a more appropriate temperature can be supplied to the plate cylinder and the like.
  • the water roller 25 (roller body 25a) has a columnar shape, and the watercraft 24 has a concave portion 24a that curves along the outer surface of the water roller 25, and dampening water A20 is provided in the concave portion 24a.
  • the stored water source roller 25 is fitted in the concave portion 24a while being separated from the inner side surface of the concave portion 24a.
  • the dampening solution A20 stored in the concave portion 24a is effectively stirred without stagnation with the rotation of the water roller 25. it can. Therefore, the temperature of the dampening solution A20 stored in the concave portion 24a can be made uniform, and the temperature of the dampening solution A20 can be appropriately managed. Thereby, the quality of printing can be improved.
  • the watercraft 24 is moved relative to the water base roller 25 so that the straight line defining the center of curvature C100 of the inner surface of the recess 24a coincides with the rotation center axis R10 of the water base roller 25. Are located.
  • the gap between the inner side surface of the concave portion 24a and the outer peripheral surface of the water roller 25 is constant, the temperature of the dampening solution A20 stored in the concave portion 24a can be more reliably made uniform, The temperature of the water A20 can be managed more appropriately. Thereby, the quality of printing can be further improved.
  • thermoelectric converter 500 is installed on the inner side surface of the water roller 25 and distributes cooling air along the inside of the water roller 25.
  • a ventilation mechanism (intake unit 60, exhaust unit 70) is provided.
  • the efficiency of the thermoelectric converter 500 can be improved, and the outer peripheral surface of the water source roller 25 (the roller main body 25a) can be effectively cooled. Therefore, the temperature of the dampening solution A20 can be more appropriately controlled, and as a result, the quality of printing can be further improved.
  • the watercraft 24 is adjusted so that the straight line defining the center of curvature C100 of the inner surface of the concave portion 24 a coincides with the rotation center axis R10 of the water source roller 25.
  • the arrangement of the watercraft 24 and the water source roller 25 is not limited to this.
  • the watercraft 24 is shifted in the negative Z-axis direction from the state of FIG. 10, and a straight line defining the center of curvature C10 on the inner side surface of the concave portion 24a is formed by the water source roller 25. It may be shifted in the Z-axis negative direction with respect to the rotation center axis R10.
  • the radius of curvature of the concave portion 24a of the watercraft 24 is enlarged from the state of FIG. 10, and a straight line defining the center of curvature C10 on the inner side surface of the concave portion 24a is formed by the water source roller 25. May be shifted in the Z-axis negative direction with respect to the rotation center axis R10.
  • the inner surface of the concave portion 24a has a shape along the outer peripheral surface of the water roller 25, and the straight line defining the center of curvature C10 of the inner surface of the concave portion 24a is Is parallel to the rotation center axis R10. Therefore, the dampening solution A20 stored in the concave portion 24a can be smoothly stirred with the rotation of the water supply roller 25, and the temperature of the dampening solution A20 stored in the concave portion 24a can be made uniform.
  • the gap between the inner surface of the concave portion 24a and the outer peripheral surface of the water roller 25 is not constant, so the configuration of the above embodiment shown in FIG. In comparison with the above, a slight temperature difference is more likely to occur in the dampening solution A20 stored in the concave portion 24a. Therefore, in order to more appropriately equalize the temperature of the dampening solution A20 stored in the concave portion 24a, a straight line that defines the center of curvature C10 of the inner side surface of the concave portion 24a is drawn as in the above-described embodiment. It can be said that it is preferable to make the gap between the inner surface of the concave portion 24a and the outer peripheral surface of the water source roller 25 constant in accordance with the rotation center axis R10.
  • thermoelectric converter 500 is installed inside the water roller 25 to control the temperature of the outer peripheral surface of the water roller 25.
  • the temperature of the outer peripheral surface of the intermediate roller 27 may be controlled by installing the container 500.
  • the intermediate roller 27 includes a roller body made of a metal material having excellent thermal conductivity and support members provided at both ends of the roller body, similarly to the water roller 25, and a thermoelectric conversion device is provided inside the roller body.
  • a vessel is installed.
  • the configuration for installing the thermoelectric converter is the same as the configuration shown in FIGS.
  • the same configuration as the intake unit 60 and the exhaust unit 70 shown in FIGS. 7 to 9 is applied to the intermediate roller 27.
  • the temperature of the dampening solution A20 when the dampening solution A20 propagates on the outer surface of the intermediate roller 27, the temperature of the dampening solution A20 can be controlled. Therefore, the temperature of the dampening solution A20 can be controlled more precisely and appropriately than in the above embodiment.
  • the structure for adjusting the temperature including the thermoelectric converter 500, the intake unit 60, and the exhaust unit 70 may be further applied to the ink roller 10.
  • the temperature of the ink A10 applied to the plate cylinder 21 can be more appropriately controlled together with the temperature control by the dampening solution A20, and as a result, the printing quality can be further improved.
  • the shape of the watercraft 24 is not limited to the shapes shown in the above-described embodiment and modified examples, and can be variously changed. However, in order to equalize the temperature of the dampening solution A20 stored in the watercraft 24, it is preferable that the inner surface of the concave portion 24a is curved so as to follow the shape of the outer peripheral surface of the water source roller 25. Further, the curvature of the concave portion 24a may not be uniform over the entire range in the longitudinal direction, and may smoothly change in the longitudinal direction.
  • the dampening solution A20 stored in the watercraft 24 can be effectively stirred with the rotation of the water supply roller 25 as long as the inner side surface of the concave portion 24a follows the shape of the outer peripheral surface of the water supply roller 25.
  • the temperature of the dampening solution A20 can be made uniform.
  • one watercraft device 29 is arranged for one plate cylinder 21, but a plurality of watercraft devices 29 may be arranged for one plate cylinder 21.
  • the ventilation mechanism that allows the cooling air to flow inside the water source roller 25 is not limited to the configuration illustrated in FIGS. 8A and 8B, and may have another configuration.
  • thermoelectric converter 500 is installed on the inner peripheral surface of the water source roller 25 by the configuration shown in FIGS. 4A, 4B, and 5, but the thermoelectric converter 500 is installed.
  • the configuration is not limited to this.
  • the number of thermoelectric converters 500 arranged on the water source roller 25 is not necessarily limited to ten, and may be another number.
  • rollers disposed between the water source roller 25 and the plate cylinder 21 are not limited to the two rubber rollers 26 and 28 and the intermediate roller 27 shown in FIG. May be added. Further, the arrangement order and arrangement position of these rollers are not limited to the example of FIG. 2A, and can be changed as appropriate.
  • the number of ink rollers 10 arranged in the printing unit 3 is not limited to four.
  • the printing machine 1 may be configured to perform printing on both sides in addition to the configuration performing printing on one side of the printing paper P10. In this case, the number of installed printing units 3 is appropriately changed, and accordingly, the number of installed watercraft devices 29 is also changed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

La présente invention concerne un dispositif de bateau à eau qui est pourvu : d'un bateau à eau (24) pour stocker de l'eau d'amortissement (A20) ; d'un rouleau de source d'eau (25) qui tourne en contact avec l'eau d'amortissement (A20) stockée dans le bateau à eau (24) ; et d'un convertisseur thermoélectrique (500) qui est installé à l'intérieur du rouleau de source d'eau (25) et commande la température du rouleau de source d'eau (25). Le rouleau de source d'eau (25) présente une forme cylindrique, et le bateau à eau (24) présente une partie évidée (24a) incurvée le long de la surface extérieure du rouleau de source d'eau (25). L'eau d'amortissement (A20) est stockée dans la partie évidée (24a). Le rouleau de source d'eau (25) est ajusté dans la partie évidée (24a) dans un état séparé de la surface intérieure de la partie évidée (24a).
PCT/JP2019/017367 2018-07-19 2019-04-24 Dispositif de bateau à eau et machine d'impression WO2020017125A1 (fr)

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JP2018135464 2018-07-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024081889A1 (fr) 2022-10-14 2024-04-18 Genesis Therapeutics, Inc. Dérivés de 4h-pyrido[1,2-a]pyrimidin-4-one pour le traitement du cancer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135665A (en) * 1979-04-10 1980-10-22 Takeshi Hashimoto Dampening water cooling device in printing press
JPS6435114A (en) * 1987-07-30 1989-02-06 Toppan Printing Co Ltd Cooling and heating roll
JPH04359765A (ja) * 1991-02-12 1992-12-14 Baldwin Printing Controls Ltd 電子冷熱素子を利用して加熱または冷却されるシリンダまたはローラおよびその加熱・冷却システム
JP2002361826A (ja) * 2001-06-05 2002-12-18 Heidelberger Druckmas Ag オフセット印刷機の湿しユニット用の水ため
US8001894B2 (en) * 2006-05-10 2011-08-23 Koenig & Bauer Aktiengesellschaft Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller
JP2016107616A (ja) * 2014-12-09 2016-06-20 パナソニックＩｐマネジメント株式会社 シート状物冷却装置およびそれを備えた印刷機
JP2017205958A (ja) * 2016-05-19 2017-11-24 アイマー・プランニング株式会社 印刷機の湿水装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135665A (en) * 1979-04-10 1980-10-22 Takeshi Hashimoto Dampening water cooling device in printing press
JPS6435114A (en) * 1987-07-30 1989-02-06 Toppan Printing Co Ltd Cooling and heating roll
JPH04359765A (ja) * 1991-02-12 1992-12-14 Baldwin Printing Controls Ltd 電子冷熱素子を利用して加熱または冷却されるシリンダまたはローラおよびその加熱・冷却システム
JP2002361826A (ja) * 2001-06-05 2002-12-18 Heidelberger Druckmas Ag オフセット印刷機の湿しユニット用の水ため
US8001894B2 (en) * 2006-05-10 2011-08-23 Koenig & Bauer Aktiengesellschaft Roller of a printing machine comprising a device for generating an axial oscillating movement of the rotating roller
JP2016107616A (ja) * 2014-12-09 2016-06-20 パナソニックＩｐマネジメント株式会社 シート状物冷却装置およびそれを備えた印刷機
JP2017205958A (ja) * 2016-05-19 2017-11-24 アイマー・プランニング株式会社 印刷機の湿水装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024081889A1 (fr) 2022-10-14 2024-04-18 Genesis Therapeutics, Inc. Dérivés de 4h-pyrido[1,2-a]pyrimidin-4-one pour le traitement du cancer

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