WO2020166642A1 - Injection blow molding device - Google Patents
Injection blow molding device Download PDFInfo
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- WO2020166642A1 WO2020166642A1 PCT/JP2020/005447 JP2020005447W WO2020166642A1 WO 2020166642 A1 WO2020166642 A1 WO 2020166642A1 JP 2020005447 W JP2020005447 W JP 2020005447W WO 2020166642 A1 WO2020166642 A1 WO 2020166642A1
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- WIPO (PCT)
- Prior art keywords
- blow molding
- station
- lip
- injection
- injection blow
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
- B29C49/30—Blow-moulding apparatus having movable moulds or mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
Definitions
- the present invention relates to an injection blow molding device that forms a resin hollow container by blow molding an injection molded preform.
- the injection blow molding device that employs this injection blow molding method includes an injection molding station and a blow molding station. At the injection molding station, a resin preform is injection molded. The preform is transferred from the injection molding station to the blow molding station with its lip (neck) held. A hollow container is formed by blow molding this preform at a blow molding station.
- injection blow molding device is also called, for example, a one-step type or hot parison type blow molding device.
- Such an injection blow molding device is equipped with a transfer section for transferring a resin molded product (eg, preform, hollow container).
- a rotary transport system is often used as the transport section of the injection blow molding apparatus.
- the rotary transfer method is a method in which the lip mold that holds the lip mold (neck mold) of the resin molded product is fixed to the rotating disc, and this rotating disc is rotated to move the resin molded product held by the lip mold to each It is to be transported to the station.
- the size of the injection blow molding machine is limited to a size that can be mounted on a truck or carried into a shipping container, so the size of the rotating disk is also made too large. It is not possible.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide an injection blow molding apparatus having improved productivity and versatility while suppressing an increase in size.
- An injection blow molding apparatus comprising: a plurality of lip mold fixing plates in which a plurality of lip molds are fixed in a row; and a direction in which the plurality of lip mold fixing plates are arranged is a column direction.
- a lip type unit having a plate holding member that holds the lip type fixing plates arranged in parallel in the row direction so that the distance between the lip type fixing plates can be adjusted, and an edge portion of the lip type unit is slidably supported to support the lip type unit.
- An upper base provided with a transport path on the lower surface for circulating and transporting the mold unit to each station, and slide moving means for linearly sliding the lip mold unit along the transport path.
- the injection blow molding device is characterized by
- a resin molded product for example, a preform
- a resin molded product for example, a preform
- the number of rows of neck molds can be increased relatively easily, and an injection blow molding apparatus with improved productivity and versatility can be realized.
- the transport device is provided corresponding to each station, and a guide member that supports an edge portion of each side of the lip type unit that crosses the transport path, and a first position that supports the lip type unit. And a moving unit that moves the guide member between a second position that does not interfere with the lip type unit.
- the carrying device is provided with a movable plate that is provided corresponding to the injection molding station and the blow molding station, and that can move up and down while holding the lip type unit. Thereby, the resin molded product can be more appropriately conveyed.
- the transfer device is provided corresponding to the injection molding station and the blow molding station, includes a movable plate that can be raised and lowered while holding the lip type unit, and is provided corresponding to each station. Between a guide member that supports an edge portion of each side of the lip type unit that crosses the transport path, and a first position that supports the lip type unit and a second position that does not interfere with the lip type unit. And moving means for moving the guide member, and the guide member and the moving means are preferably provided on the movable plate. Accordingly, the resin molded product can be appropriately held on the movable plate in the injection molding station, the blow molding station, or the like, and the resin molded product can be properly moved up and down together with the movable plate.
- the guide member provided on the movable plate corresponding to the blow molding station is configured to be movable together with the lip type fixing plate as the gap between the lip type fixing plates is expanded. Further, it is preferable that the movable plate corresponding to the blow molding station is configured to be able to move up and down even when the gap between the lip type fixed plates is expanded. As a result, the resin molded product can be appropriately conveyed to each station by the lip type unit.
- the plate holding member includes a plurality of dividing members to which the lip-type fixing plates are fixed, and a connecting member that connects the plurality of dividing members to each other so as to be contactable and separable. ..
- the pitch between the columns of the neck type can be easily changed, so that the number of columns of the neck type can be more easily increased.
- the blow molding station is provided with a plurality of sets of blow molds, and the dividing members are respectively connected to bottom molds that constitute the blow molds. As a result, the pitch between the neck mold rows can be appropriately changed at the blow molding station.
- the slide moving means includes a rail member linearly provided between the stations, a chuck member slidably mounted on the rail member and engaging with the plate holding member, and the chuck member being the rail member. And a power source that slides along the member.
- the injection blow molding apparatus of the present invention it is possible to appropriately convey the resin molded product to each station and prevent the apparatus from increasing in size. That is, it is possible to realize an injection blow molding apparatus with improved productivity and versatility while suppressing the increase in size of the apparatus.
- FIG. 3 is a front view of the injection blow molding apparatus according to the first embodiment.
- FIG. 1 is a perspective view showing a schematic configuration of a carrying device according to a first embodiment.
- FIG. 1 is a diagram showing a schematic configuration of a carrying device according to a first embodiment.
- FIG. 3 is a diagram showing a schematic configuration of a lip type unit according to the first embodiment.
- FIG. 3 is a cross-sectional view illustrating a slide support member according to the first embodiment.
- FIG. 3 is a cross-sectional view illustrating a guide member according to the first embodiment.
- FIG. 3 is a diagram illustrating a moving device according to the first embodiment.
- FIG. 3 is a side view showing a schematic configuration of the blow molding die according to the first embodiment.
- FIG. 6 is a diagram for explaining the operation of the lip type unit according to the first embodiment.
- It is a block diagram which shows schematic structure of the injection blow molding apparatus which concerns on 2nd Embodiment.
- It is a block diagram which shows schematic structure of the injection blow molding apparatus which concerns on 4th Embodiment.
- FIG. 1 is a block diagram showing a schematic configuration of an injection blow molding apparatus according to one embodiment (first embodiment) of the present invention.
- FIG. 2 is a diagram showing a front side of the injection blow molding apparatus, and is a diagram showing a schematic configuration of an injection molding station, an inspection station, and a take-out station.
- FIG. 3 is a perspective view showing an example of a transfer device included in the injection blow molding apparatus, and
- FIG. 4 is a view showing a lower surface (bottom surface) side of an upper base included in the transfer device.
- the injection blow molding apparatus is, for example, a one-step (hot parison type) blow molding apparatus for manufacturing a hollow container (resin molded product) such as a PET bottle, and performs different manufacturing steps. It is equipped with multiple stations.
- the injection blow molding apparatus 10 includes at least an injection molding station 20, blow molding stations 40 and 50, and an ejection station 70.
- the injection blow molding apparatus 10 according to the present embodiment includes an injection molding station 20, a temperature control station 30, a first blow molding station 40, a second blow molding station 50, and an inspection station 60. And a take-out station 70.
- These six stations 20 to 70 are provided on a machine base 11 that constitutes the injection blow molding apparatus 10.
- the transport device according to the present disclosure is not applied only to the injection blow molding device having 6 stations.
- the invention can be applied to an injection blow molding device having four stations shown in FIG. 11 described later and an injection blow molding device having five stations shown in FIG. 15 described later.
- the injection molding station (injection molding device) 20 includes an injection mold 22 to which an injection device 21 is connected via a hot runner mold, and the injection device 21 supplies the injection mold 22 with a resin material (for example, a raw material).
- a resin material for example, a raw material.
- a preform is molded by injecting PET resin).
- the temperature control station (temperature control device) 30 is a temperature control mold (temperature control pot and temperature control rod (temperature control core, air cooling rod, heating core)) 31 for controlling (heating or cooling) the temperature of the preform.
- the temperature of the preform conveyed from the injection molding station 20 to the temperature control station 30 is adjusted in the temperature control mold 31 to a predetermined temperature.
- the first blow molding station (first blow molding device) 40 includes a blow molding die (first blow molding die and first blow core die and stretch rod) 41, and an intermediate molded product from a preform.
- a blow molding die first blow molding die and first blow core die and stretch rod
- an intermediate molded product from a preform Form. That is, in the temperature control station 30, the preform conveyed to the first blow molding station 40 is placed in the blow molding die 41, and the preform is blow-molded with a pressurized gas (high pressure air) to obtain a predetermined shape.
- a pressurized gas high pressure air
- the second blow molding station (second blow molding device) 50 includes blow molding dies (second blow molding die and first blow core die and stretch rod) 51, and includes intermediate molded products to final molded products. To form a hollow container. That is, in the first blow molding station 40, the intermediate molded product conveyed to the second blow molding station 50 is placed in the blow molding die 51, and the intermediate molded product is blown by pressurized gas (high pressure air). By molding, a hollow container which is the final molded product is formed.
- the inspection station (inspection device) 60 is a station for inspecting the hollow container conveyed from the second blow molding station 50 (leak inspection, etc.).
- the inspection method at the inspection station 60 is not particularly limited, and an existing inspection method may be adopted.
- the hollow container determined to be non-defective by the inspection station 60 is transported to the take-out station 70 and taken out of the apparatus from the take-out station 70.
- the injection molding station 20, the temperature control station 30, the first blow molding station 40, the second blow molding station 50, the inspection station 60, and the take-out station 70 are arranged in two rows of three stations on the machine base 11. As a whole, the injection blow molding apparatus 10 has a substantially rectangular shape in a top view.
- the injection blow molding apparatus 10 passes from the injection molding station 20 through the temperature control station 30, the first blow molding station 40, the second blow molding station 50, and the inspection station 60 to the take-out station 70 to form a resin molded product (
- a transport device 100 for sequentially transporting a preform, an intermediate molded product or a hollow container is provided.
- the transport device 100 circulates and transports the lip type unit 110 to each station as indicated by an arrow in FIG.
- the injection blow molding device 10 is characterized by the configuration of the transfer device 100. Below, the structure of the conveyance apparatus 100 is mainly demonstrated in detail.
- the transport device 100 includes a plurality of lip dies 23 (see FIG. 5) that form a lip portion (neck portion) of a resin molded product (preform, intermediate molded product or hollow container). It includes a lip type unit 110 including the lip type unit 110, and sequentially conveys the lip type unit 110 to each station along the surface (lower surface) of the upper substrate 120.
- the transfer device 100 includes six lip-type units 110 for six stations, and the plurality of lip-type units 110 are circulated and transferred to each station.
- FIG. 5 is a diagram showing a schematic configuration of the lip type unit
- FIG. 5(a) is a diagram showing a state where the pitch between the rows of the lip type is minimum
- FIG. It is a figure which shows the state where a pitch is the maximum.
- the lip type unit 110 includes a plurality of (four in this embodiment) lip type fixing plates 111 (111a to 111d) and a plurality of these lip types. And a frame-shaped plate holding member 112 that holds the mold fixing plate 111 at predetermined intervals.
- the number of lip type fixing plates is not limited to four (four rows), and may be two (two rows), three (three rows) and the like.
- the direction in which the plurality of lip-type fixing plates 111 are arranged is referred to as the column direction.
- a plurality of (6 in the present embodiment) fixing holes 113 are formed in a line in each lip-type fixing plate 111.
- a lip die 23 composed of a pair of split dies is fixed in each of the fixing holes 113.
- Each lip type fixed plate 111 (111a to 111d) is composed of a pair of divided plates 114a and 114b.
- the split molds that form the lip mold 23 are fixed to the pair of split plates 114a and 114b, respectively.
- the pair of split plates 114a and 114b forming the lip type fixed plate 111 are normally biased by a spring or the like and are held in a state in which they are in close contact (the state where the lip type 23 is closed). Further, wedge-shaped holes 115 are formed at both ends in the longitudinal direction of the mating surfaces of the division plates 114a and 114b.
- the plate holding member 112 holds a plurality of lip die fixing plates 111 arranged in parallel in a direction (row direction) orthogonal to a direction in which the plurality of lip dies 23 formed in one row are arranged,
- the distance between the lip-type fixed plates 111 is adjustable. That is, the plate holding member 112 can change the interval (the pitch between the rows of the lip dies 23) between the lip die fixing plates 111 when the pair of split plates 114a and 114b are in close contact (the lip die 23 is closed). It is configured.
- the plate holding member 112 is divided between the lip type fixed plates 111, and is composed of a plurality of (for example, six) dividing members 116a to 116f (see FIG. 5B). ). Of the six dividing members 116a to 116f, the dividing members 116a and 116f located on both outer sides in the arrangement direction are formed in a substantially U shape and support both end portions of the lip type fixing plates 111a and 111d. There is.
- the dividing members 116b to 116e provided in the central portion in the arrangement direction slidably support one end sides of the lip type fixing plates 111b and 111c.
- the dividing members 116b and 116c slidably support both ends of the lip type fixing plate 111b, and the dividing members 116d and 116e slidably support both ends of the lip type fixing plate 111c.
- the adjacent dividing members 116 are connected by a connecting member 119 having a connecting pin 117 and a long hole 118 into which the connecting pin 117 is inserted.
- the connecting pin 117 is provided on one of the adjacent dividing members 116, and the connecting member 119 is fixed to the other dividing member 116 with the connecting pin 117 inserted into the elongated hole 118.
- the distance between the adjacent division members 116 can be adjusted within the range of the length of the long holes 118. That is, in a state where the pair of split plates 114 constituting the lip type fixing plate 111 are in close contact (the state where the lip type 23 is closed), the interval between the lip type fixing plates 111 (the pitch between the rows of the lip type 23) is appropriately set. Can be adjusted.
- the dividing members 116 are connected by the connecting pin 117 and the connecting member 119 as described above, but the connecting structure of the dividing members 116 is not particularly limited, and between the rows of the lip type 23. Any structure that can adjust the pitch may be used.
- the transfer device 100 sequentially transfers the plurality of lip type units 110 having such a configuration to each station along the surface (lower surface) of the upper substrate 120.
- the upper substrate 120 corresponds to the injection molding station 20, the temperature control station 30, the first blow molding station 40, the second blow molding station 50, the inspection station 60, and the ejection station 70. It is provided and fixed on the machine base 11 by a plurality of legs 121.
- a substantially rectangular transport path 122 for transporting the lip type unit 110 is provided on the lower surface side of the upper substrate 120. That is, on the lower surface of the upper base 120, a plurality of slide support members 123 that slidably support the edge of the lip type unit 110 are arranged in an inner and outer double ring, and the inner slide support member 123a and the outer slide member 123a. The area between the support member 123b and the support member 123b is the transport path 122 (see FIG. 4).
- each slide support member 123 has a lower end of the upper base 120, for example, a tip end that is bent and protrudes so as to have an L-shaped cross section and faces the inside of the transport path 122. It is provided in.
- the lip type unit 110 is slidable along the transport path 122 with the edge portion 110 a supported by the slide support member 123.
- the slide support member 123 is not particularly limited as long as it can slidably support the lip type unit 110, and the shape thereof is not particularly limited.
- the upper base 120 corresponding to each station is provided with substantially rectangular through holes 124 (124a to 124f) for exposing each lip die of the lip die unit 110.
- the above-mentioned slide support member 123 is provided outside the through holes 124 at each station (see FIG. 4), and the lip type unit 110 that has slid along the transport path 122 is located at a position facing each through hole 124. It is supposed to be retained.
- molding processing members injection core type, temperature control rod type, blow core type, stretch rod, eject cam
- the lip type unit 110 is configured so that the pitch between the rows of the lip type 23 can be changed as described above.
- the through holes 124b, 124e, and 124f provided in the temperature control station 30, the inspection station 60, and the take-out station 70 are provided in the lip mold units 110 in a state where the pitch between rows of the lip molds 23 is minimized. It is large enough to expose.
- the slide support member 123 is attached to the upper base 120 in the temperature control station 30, the inspection station 60, and the take-out station 70.
- the transfer device 100 is provided with a movable plate 130 that can be lifted and lowered while holding the lip mold unit 110 at a station where the lip mold 23 needs to be lifted and lowered.
- the movable plate 130 (130A, 130B, 130C) is provided in each of the injection molding station 20, the first blow molding station 40, and the second blow molding station 50.
- Each movable plate 130 is provided with an exposure opening 131 of a size that exposes each lip die of the lip die unit 110 in a state where the pitch between rows of the lip die is minimized.
- the through holes 124a, 124c, 124d provided in the injection molding station 20, the first blow molding station 40, and the second blow molding station 50 have a size capable of accommodating the movable plate 130 (130A, 130B, 130C). doing.
- the movable plate 130 is provided so as to be accommodated in the through holes 124a, 124c, 124d of the upper base 120.
- the movable plate 130A corresponding to the injection molding station 20 is formed in a size capable of holding the lip type unit in which the inter-row pitch of the lip types 23 is minimized. Therefore, the through holes 124a corresponding to the movable plate 130A are also formed in such a size that the lip die unit 110 in a state where the pitch between rows of the lip die 23 is minimized is exposed.
- the slide support member 123 is attached to the movable plate 130 in which the exposure opening 131 is formed. That is, the movable plate 130 holds the lip mold unit 110 by a member including the slide support member 123, and is configured to be movable up and down between the upper base 120 and the injection molding mold (injection cavity mold) 22.
- the injection molding station 20 is provided with a so-called vertical tightening type injection molding device as shown in FIG. 2, and an injection core mold (not shown) is moved forward and backward (elevated) above the upper base 120.
- a drive mechanism section 200 is provided above the upper base 120.
- a plurality of (for example, four) air cylinders are further provided, and an elevating device (elevating means) 140 for elevating the movable plate 130 is provided.
- the elevating device 140 and the movable plate 130 are connected via a rod member 145.
- the movable plate 130 can be moved up and down between the upper base 120 and the injection molding die (injection cavity die) 22 by the elevating device 140 while holding the lip die unit 110.
- the movable plate 130B corresponding to the first blow molding station 40 and the movable plate 130C corresponding to the second blow molding station 50 are large enough to hold the lip mold unit 110 in which the row pitch of the lip molds 23 is maximized. It has a shape and a shape. Therefore, the through holes 124c and 124d corresponding to the movable plates 130B and 130C are also formed in such a size that the lip type unit 110 in which the pitch between the rows of the lip types 23 is maximized is exposed.
- the movable plates 130 ⁇ /b>B and 130 ⁇ /b>C include a frame-shaped main body portion 132 in which the exposure opening 131 is formed, and a pair of extension portions that extend from the main body portion 132 to the outer side in the row-to-row direction of the lip mold 23. And 133.
- a slide support member 123 is provided from the main body portion 132 of the movable plate 130 to the extension portion 133 (see FIG. 3 and the like).
- the movable plate 130 can hold the lip type unit 110 not only when the row pitch of the lip dies 23 is minimized but also when the row pitch is maximized. That is, the lip-type unit 110 can change the pitch between rows while being held by the movable plate 130.
- the movable plates 130C and 130D hold the lip type unit 110 by a member including the slide support member 123, and the upper base 120 and the blow molding unit. It is configured to be able to move up and down between the metal molds (blow cavity molds) 41 and 51.
- the movable plates 130B and 130C can be moved up and down by an elevating device provided above the upper base 120.
- the transfer device 100 further includes a guide member (holding member) 125 for holding the lip type unit 110 at each station, separately from the slide support member 123 forming the transfer path 122.
- the guide member 125 is provided at each station so as to correspond to two sides of the lip type unit 110 that crosses the transport path 122.
- These guide members 125 are movably provided by a moving device (moving means) 126 so as not to hinder the conveyance of the lip type unit 110.
- the moving device 126 includes, for example, two actuators (power sources) 127 configured by air cylinders or the like, and has a first position (FIG. 7) that holds the edge portion 110a of the lip type unit 110.
- the guide member 125 is appropriately moved to a second position (see FIG. 2B) that does not interfere with the movement of the lip type unit 110 (see (a)).
- the guide member 125 and the moving device 126 are attached to the upper base 120 in the temperature control station 30, the inspection station 60, and the take-out station 70, and the injection molding station 20 and the first base 120 are attached.
- the movable plate 130 is attached in the blow molding station 40 and the second blow molding station 50. That is, in this embodiment, the movable plate 130 is configured to be movable up and down while the lip type unit 110 is held by the slide support member 123 and the guide member 125. Note that the upper substrate 120 and the movable plate 130 are not shown in FIG. 7.
- the guide member 125 and the moving device 126 may be provided as needed.
- the guide member 125 and the moving device 126 may not be provided as long as the slide support member 123 can appropriately hold the lip type unit 110.
- the movable plates 130B and 130C corresponding to the first blow molding station 40 and the second blow molding station 50 are provided with the main body portion 132 and the extending portion 133, and the row of the lip mold 23 is provided.
- the lip type unit 110 can be held not only in the state in which the inter-row pitch is minimized but also in the state in which the inter-row pitch is maximized.
- the guide member 125 (125 a) provided between the pair of extending portions 133 is moved to the second position by the moving device 126.
- the inter-row pitch of the lip dies 23 can be appropriately expanded without the lip die unit 110 interfering with the guide member 125.
- the first pitch converting mechanism 160 (pitch) that presses the lip type unit 110 that includes an air cylinder etc.
- a reduction mechanism is provided (see FIG. 3, etc.).
- the transfer device 100 further includes a slide transfer device (slide transfer means) 170 that moves the lip type unit 110 to each station along a transfer path 122 provided on the upper base 120. That is, the slide moving device 170 is provided on the lower surface (bottom surface) side of the upper substrate 120 and linearly slides the lip type unit 110 supported by the slide supporting member 123.
- a slide transfer device silica transfer means 170 that moves the lip type unit 110 to each station along a transfer path 122 provided on the upper base 120. That is, the slide moving device 170 is provided on the lower surface (bottom surface) side of the upper substrate 120 and linearly slides the lip type unit 110 supported by the slide supporting member 123.
- the slide movement device 170 is a so-called servo slider, and as shown in FIGS. 4 and 8, a rail member 171 linearly provided between adjacent stations and a slide on the rail member 171.
- a slide member 172 that is movably provided and a power source 173 that has a motor or the like and moves the slide member 172 along the rail member 171 are provided.
- Each rail member 171 that constitutes the slide moving device 170 is arranged on the outer peripheral portion of the rectangular upper base 120 along each side of the upper base 120. That is, each rail member 171 is arranged along the outer peripheral portion of each station arranged in a rectangular shape.
- each rail member 171 and slide member 172 configuring the slide movement device 170 are individually provided between adjacent stations.
- each slide member 172 provided on the plurality of rail members 171 arranged in a line is moved by one power source 173.
- the slide member 172 is provided with a chuck member 174 that can move forward and backward from the rail member 171 toward the lip type unit 110.
- the chuck member 174 includes an engagement protrusion 175 that protrudes toward the lip type unit 110 side.
- an engagement concave portion 180 with which the engagement protrusion 175 is engaged is formed on the side surface of the lip type unit 110 (the side surface of a plate holding member described later).
- FIG. 8A shows a state in which the chuck member 174 is not engaged with the engaging recess 180 in the one slide moving device 170 shown
- FIG. 8B shows that the chuck member 174 has the engaging recess 180. Shows the state of being engaged with.
- the upper substrate 120 and the movable plate 130 are not shown. With this configuration, the lip type unit 110 can be attached to and detached from the transfer device 100 (the injection blow molding device 10) via the chuck member 174.
- the slide moving device 170 is provided with the same number of chuck members 174 as the number of stations. Further, when it is necessary to change the interval (pitch) of each lip type fixing plate 111 during molding, it is necessary to convey the lip type unit 110 between stations while maintaining this interval. Therefore, the chuck member 174 includes a first chuck member for a narrow pitch used for transportation from the injection molding station 20 to the temperature control station 30, and the like, and the first blow molding station 40 to the second blow molding station 50. It is desirable to be configured so as to be able to correspond to at least two kinds of pitch patterns, such as being composed of a second chuck member for wide pitch which is used in the conveyance of the above.
- the gap between the lip mold fixing plates 111 (lip mold It is necessary to change the pitch 23 between columns).
- the lip mold is fixed according to the mold opening of the blow molding mold 51 (the mold opening of the blow cavity mold). It is necessary to increase the distance between the plates 111.
- the interval between the lip type fixing plates 111 (the pitch between the rows of the lip types 23) can be appropriately adjusted. Therefore, when the intermediate molded product is formed in the first blow molding station 40, the intermediate molded product can be satisfactorily taken out from the blow molding die 41. Further, when the hollow container is formed in the second blow molding station 50, the hollow container can be satisfactorily taken out from the blow molding die 51.
- the interval between the lip mold fixing plates 111 is adjusted in synchronization with the opening of the blow molding die 41.
- the interval between the lip mold fixing plates 111 is adjusted in synchronization with the opening of the blow molding die 51. Since the blow molding dies 41 and 51 have the same configuration except that the shape of the blow cavity is slightly different, the blow molding dies 51 included in the second blow molding station 50 will be described here.
- the blow molding die 51 provided in the second blow molding station 50 includes a plurality of sets (four sets in this embodiment) of blow molds 52.
- Each blow mold 52 includes a blow cavity mold 54 having a plurality of cavities in a row, and a bottom mold 55 that closes the bottom of each cavity to form the bottom surface of the hollow container.
- the blow cavity mold 54 is specifically composed of a pair of split molds which are clamped by bringing the parting surfaces into contact with each other. The split molds of the blow molds 52 adjacent to each other are fixed in a state of being back-to-back.
- the blow molding die 51 is provided with a blow core die above the blow die 52, which is inserted into an intermediate molded product arranged in the cavity and introduces air into the inside.
- the blow cavity mold 54 that constitutes the plurality of blow molds 52 and the bottom mold 55 are connected by a connecting member 58 having a connecting pin 56 and an elongated hole 57.
- the connecting pin 56 and the connecting member 58 are provided near the upper end and the lower end of the blow mold 52, respectively.
- the lip mold unit 110 is connected to the blow molding mold 51 having such a configuration, and the interval between the lip mold fixing plates 111 is adjusted according to the mold opening of the blow molding mold 51. It is supposed to be done.
- the bottom die 55 that constitutes each blow die 52 is provided with the connection pins 59, while the split members 116 (116a to 116f) that constitute the plate holding member 112 are provided with these pins.
- An insertion hole 185 into which each connection pin 59 is inserted is formed (see FIG. 10B and FIG. 3 ).
- a second pitch conversion mechanism (pitch expansion mechanism) is configured by the connection pin 59, the insertion hole 185, and the like.
- each connection pin 59 is inserted into each insertion hole of each split member 116. It is inserted in 185, and each dividing member 116 is integrated with each bottom die 55 (see FIG. 10A).
- the blow molding die 51 is opened, and then the lip mold unit 110 is lifted and separated from the blow molding die 51. As a result, the hollow container is taken out of the blow molding die 51.
- the first pitch converting mechanism 160 described above presses the lip type unit 110 (plate holding member 112) to return the gap between the lip type fixing plates 111 to the original state (narrow state), and then to the inspection station 60. Transport.
- the lip mold unit 110 that holds the plurality of lip molds 23 is provided in the injection molding station 20, the temperature control station 30, and the first blow molding station. 40, the second blow molding station 50, the inspection station 60 and the unloading station 70, respectively. Therefore, it is possible to realize an injection blow molding apparatus with improved productivity and versatility.
- the injection blow molding apparatus 10 has a substantially rectangular shape provided on the lower surface of the upper base 120 between a plurality of stations including at least the injection molding station 20, the blow molding station 40, and the take-out station 70.
- a conveyance device 100 is provided that allows a lip type unit 110 having a plurality of rows of lip type fixing plates 111 holding a plurality of lip types 23 to be slidably movable and detachable with respect to a shaped conveyance path 122. With this configuration, the size of the lip mold unit 110 and the number of lip molds 23 can be increased, and the productivity can be improved, as compared with a rotary disk having the same area of the upper base 120.
- the upper base 120 may be a combination of bases individually provided for each station, or may be a base integrally provided for a plurality of stations. However, it is preferable that at least the portion corresponding to the injection molding station 20 of the upper substrate 120 is separable from the portions corresponding to the other stations 30 to 70.
- the upper base 120 is such that the portion corresponding to the injection molding station 20 can be separated from the portions corresponding to the other stations 30 to 70, and the temperature control station 30 and the first blow molding station are further provided. 40 and the portion facing the second blow molding station 50 and the portion facing the inspection station 60 and the take-out station 70 are separable.
- the injection molding station 20 is equipped with a so-called vertical tightening type injection molding device, and its height is relatively high. Therefore, it is preferable that the portion of the upper base 120 corresponding to the injection molding station 20 be separable from the portions corresponding to the other stations 30 to 70. As a result, the injection molding station (injection molding apparatus) 20 can be transported separately from other stations. Therefore, the ease of carrying the injection blow molding apparatus 10 is improved.
- the lip mold unit is fixed to four (four rows) lip molds.
- the plates are provided, the number of the lip type fixing plates provided in the lip type unit is not particularly limited, and may be two (two rows), three (three rows), or the like.
- the transport device is illustrated as having six lip-type units for six stations, but the number of lip-type units included in the transport device is not particularly limited. ..
- the carrier may, for example, be equipped with four lip-type units for six stations.
- the injection blow molding apparatus is illustrated as having a configuration including six stations for performing the steps of injection molding, temperature control, two-time blow molding, inspection, and take-out.
- the process content is not particularly limited.
- the blow molding process may be performed once.
- the configuration of the blow molding station may be the same as that of the second blow molding station 50 including the second pitch conversion mechanism.
- the first pitch conversion mechanism may be arranged in the take-out station instead of the blow molding station.
- the injection blow molding apparatus including six stations has been described, but the number of stations is not particularly limited, and, for example, an injection blow molding apparatus including four stations or five stations can also be used.
- the invention can be applied.
- each station is arranged in 2 rows of 3 stations on the machine base.
- 2 stations are arranged on each machine base.
- the stations may be arranged in rows.
- each station is arranged in two rows of three stations on the machine base, while a lip type unit that does not hold any one extra station (space). May be a place to wait (see FIG. 15 described later).
- FIG. 11 is a block diagram showing an injection blow molding apparatus 1010 according to another embodiment (second embodiment) different from the above embodiment.
- FIG. 12 is a perspective view showing a schematic configuration of a carrying device 1100 in the injection blow molding device 1010.
- FIG. 13 is a plan view showing a schematic configuration of the transfer device 1100.
- the injection blow molding apparatus 1010 includes four stations: an injection molding station 20, a temperature control station 30, a blow molding station 1040, and a take-out station 70.
- the blow molding station 1040 differs from the first blow molding station 40 and the second blow molding station 50 in the first embodiment in that a hollow container is formed from a preform, but the blow molding die 1041 is
- the second blow molding station 50 has the same structure as the second blow molding station 50 except that the shape of the cavity is slightly different, and thus detailed description thereof will be omitted.
- Members having the same reference numerals as those in the first embodiment, such as the injection molding station 20, the temperature control station 30, and the take-out station 70, are the same as those in the first embodiment, and thus detailed description thereof will be omitted.
- each station is arranged in two rows on the machine base 11 in two rows.
- the number of lip mold units 110 is four.
- the lip type unit 110 shown in FIGS. 12 and 13 is different from the first embodiment in the number of fixing holes and the like in one row, but the basic configuration is similar to that of the first embodiment. Since the lip type unit 110 can be applied, the same reference numerals are given and detailed description will be omitted.
- the carrier device 1100 shown in FIGS. 12 and 13 includes an upper base 1120 having four through holes 124a, 124b, 124d, and 124e.
- the four through holes 124a, 124b, 124d, and 124e are provided at positions corresponding to the injection molding station 20, the temperature control station 30, the blow molding station 1040, and the take-out station 70, respectively.
- the leg portion 121, the guide member 125, the moving device 126, the first pitch conversion mechanism 160, the slide moving device 170, and the like of the transport device 1100 have the same basic configuration as that described in the first embodiment. Since they can be applied, the same reference numerals are given and detailed description will be omitted.
- the transport path 122 is shorter than that in the first embodiment because the number of stations is not small, but is similar to the first embodiment in that it is a path through which the slide moving device 170 transports the lip type unit 110. Therefore, the same reference numerals are given and detailed description will be omitted.
- the transport apparatus 1100 according to the present disclosure can be applied to the injection blow molding apparatus 1010 including the four stations.
- the transport device 1100 may be provided corresponding to the injection molding station 20 and the blow molding station 1040, and may include a movable plate that can be moved up and down while holding the lip mold unit 110.
- FIG. 14 is a block diagram showing an injection blow molding device 2010 according to yet another embodiment (third embodiment).
- the injection blow molding apparatus 2010 includes a first injection molding station 2020, a first temperature control station 2030, a second injection molding station 2024, a second temperature control station 2032, a blow molding station 2040, and a take-out operation.
- the station 70 includes six stations.
- the blow molding station 2040 and the blow molding die 2041 provided therein are similar to the blow molding station 1040 and the blow molding die 1041 in FIG. 11, respectively.
- Members having the same reference numerals, such as the take-out station 70 and the lip type unit 110, are the same as those in the first embodiment, and thus detailed description thereof will be omitted.
- each station is arranged on the machine base 11 in two rows of three stations.
- the injection blow molding apparatus 1010 is provided with two injection molding stations, a first injection molding station 2020 and a second injection molding station 2024, and is configured to mold a preform having a two-layer structure. ..
- the transport apparatus 2100 according to the present disclosure can also be applied to the injection blow molding apparatus 2010 including six stations shown in FIG. 14. Note that the carrier device 2100 can be configured by appropriately modifying the carrier device 100 in the first embodiment according to each station of the injection blow molding device 2010, and thus detailed description thereof will be omitted.
- the injection blow molding device 2010 can mold a preform having a two-layer structure by the following procedure, for example.
- the outer layer portion of the preform is molded by injecting the resin material from the first injection device 2021 into the first injection molding die 2022.
- the outer layer portion is transported to the first temperature control station 2030 by the transport device 2100.
- the first temperature adjustment station 2030 the temperature of the outer layer portion is adjusted in the first temperature adjustment mold 2031 so as to reach a predetermined temperature.
- the outer layer portion is transported to the second injection molding station 2024 by the transport device 2100.
- the resin material is injected from the second injection device 2025 into the second injection mold 2026 to mold the inner layer portion inside the outer layer portion of the preform.
- the transport device 2100 transports the preform including the inner layer portion and the outer layer portion to the second temperature control station 2032.
- the temperature of the preform is adjusted in the second temperature control mold 2033 so as to reach a predetermined temperature.
- the method of molding the two-layer structure preform in the injection blow molding apparatus 2010 is not limited to the above-described example, but the inner layer portion is molded in the first injection molding station 2020 and the exterior is molded in the second injection molding station 2024. A mode in which the part is molded may be adopted.
- a first temperature control station 2030 between the first injection molding station 2020 and the second injection molding station 2024.
- the second preform portion is molded in the second injection molding station 2024 by sufficiently cooling and solidifying the first preform portion molded in the first injection molding station 2020. The deformation of the first preform portion can be suppressed.
- the first preform portion By suppressing the deformation of the first preform portion, it is possible to form a two-layer (laminate) preform having a uniform thickness distribution of the inner and outer layers.
- the sticking property sticking condition: weldability, adhesiveness, adhesiveness
- the second preform part may be deteriorated (eg, the first: Preform material-PET, second preform material-PET, PP, EVOH).
- the first temperature control station 2030 between the first injection molding station 2020 and the second injection molding station 2024, the surface of the cooled first preform portion is heated to improve the adhesiveness. It is possible to achieve good adhesion between the first preform portion and the second preform portion.
- FIG. 15 is a block diagram showing an injection blow molding device 3010 according to still another embodiment (fourth embodiment).
- the injection blow molding device 3010 includes five stations: a first injection molding station 3020, a second injection molding station 3024, a temperature control station 30, a blow molding station 3040, and a take-out station 70.
- the blow molding station 3040 and the blow molding die 3041 provided therein are similar to the blow molding station 1040 and the blow molding die 1041 in FIG. 11, respectively.
- the first injection molding station 3020 and the second injection molding station 3024 are different in arrangement in the injection blow molding apparatus 3010, but the first injection molding station 2020 and the second injection molding station 2024 in FIG. It is a mode similar to.
- each station is arranged in two rows of three stations on the machine base 11. However, the station between the take-out station 70 and the first injection molding station 3020 is a place where the lip type unit 110 holding nothing is waiting.
- the injection blow molding apparatus 3010 is provided with two injection molding stations and is configured to mold a preform having a two-layer structure.
- the transport device 3100 according to the present disclosure can also be applied to the injection blow molding device 3010 including the five stations illustrated in FIG. 15.
- the carrier device 3100 can be configured by appropriately modifying the carrier device 100 in the first embodiment according to each station of the injection blow molding device 3010, and thus detailed description thereof will be omitted.
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Abstract
A conveyance device (100) of an injection blow molding device (10) comprises: a lip-type unit (110) which has a lip-type fixed plate and a plate retaining member; an upper base (120) which supports an edge section of the lip-type unit (110) in a manner allowing sliding movement, and in which a conveyance path (122), for conveying the lip-type unit (110) to stations in a circulating manner, is provided to a bottom surface thereof; and a sliding movement means (170) for causing linear sliding movement of the lip-type unit (110) along the conveyance path (122).
Description
本発明は、射出成形したプリフォームをブロー成形することで樹脂製の中空容器を形成する射出ブロー成形装置に関する。
The present invention relates to an injection blow molding device that forms a resin hollow container by blow molding an injection molded preform.
従来、樹脂製の中空容器の成形方法としては様々提案されているが、代表的な方法としては、射出成形によりプリフォーム(パリソン)を形成し、このプリフォームをブロー成形することにより中空容器を成形する射出ブロー成形方法がある(例えば、特許文献1参照)。
Conventionally, various methods have been proposed as molding methods for resin hollow containers, but a typical method is to form a preform (parison) by injection molding, and blow mold this preform to form a hollow container. There is an injection blow molding method for molding (for example, refer to Patent Document 1).
この射出ブロー成形方法を採用する射出ブロー成形装置は、射出成形ステーションと、ブロー成形ステーションとを備えている。射出成形ステーションでは、樹脂製のプリフォームを射出成形する。プリフォームは、そのリップ部(ネック部)が保持された状態で射出成形ステーションからブロー成形ステーションに移送される。このプリフォームをブロー成形ステーションにてブロー成形することで中空容器を形成する。
The injection blow molding device that employs this injection blow molding method includes an injection molding station and a blow molding station. At the injection molding station, a resin preform is injection molded. The preform is transferred from the injection molding station to the blow molding station with its lip (neck) held. A hollow container is formed by blow molding this preform at a blow molding station.
なお、このような射出ブロー成形装置は、例えば、1ステップ方式、あるいはホットパリソン式のブロー成形装置とも呼ばれている。
Note that such an injection blow molding device is also called, for example, a one-step type or hot parison type blow molding device.
またこのような射出ブロー成形装置は、樹脂成形品(例えば、プリフォーム、中空容器)を搬送するための搬送部を備えている。射出ブロー成形装置の搬送部としては、回転搬送方式が採用されているものが多い。回転搬送方式とは、樹脂成形品のリップ型(ネック型)を保持するリップ型を回転盤に固定しておき、この回転盤を回転させることで、リップ型で保持された樹脂成形品を各ステーションに搬送するものである。
Also, such an injection blow molding device is equipped with a transfer section for transferring a resin molded product (eg, preform, hollow container). A rotary transport system is often used as the transport section of the injection blow molding apparatus. The rotary transfer method is a method in which the lip mold that holds the lip mold (neck mold) of the resin molded product is fixed to the rotating disc, and this rotating disc is rotated to move the resin molded product held by the lip mold to each It is to be transported to the station.
ここで、射出ブロー成形装置においては、成形する中空容器のサイズを変更することなく生産性及び汎用性の向上を図ることが望まれている。そのためには、従来の射出ブロー成形装置と略同サイズのリップ型(ネック型)を用いて、リップ型の列数を増やす必要がある。
Here, in the injection blow molding device, it is desired to improve productivity and versatility without changing the size of the hollow container to be molded. For that purpose, it is necessary to increase the number of rows of lip molds by using a lip mold (neck mold) having substantially the same size as the conventional injection blow molding device.
しかしながら、回転搬送式が採用されている従来の射出ブロー成形装置では、一対の割型からなり開閉可能なネック型が回転盤に対して固定されている。このため、従来の射出成形装置においては、ネック型の列数を容易に変更することは難しく、成形可能なボトルサイズの選択範囲が狭い傾向にあった。したがって、従来の射出ブロー成形装置では、生産性及び汎用性の大幅な向上は難しいという問題があった。
However, in the conventional injection blow molding device that employs the rotary transfer type, a neck mold that is composed of a pair of split molds and that can be opened and closed is fixed to the turntable. For this reason, in the conventional injection molding apparatus, it is difficult to easily change the number of rows of the neck molds, and the selection range of the moldable bottle size tends to be narrow. Therefore, the conventional injection blow molding apparatus has a problem that it is difficult to greatly improve productivity and versatility.
なお回転搬送方式を採用した射出ブロー成形装置であっても、回転盤自体を大きくすることでネック型の列数を増加させることはできるものの、結果として装置全体が大型化してしまうという問題がある。また、射出ブロー成形装置のエンドユーザーへの輸送の都合上、射出ブロー成形装置の大きさはトラックに搭載可能または輸送コンテナに搬入可能なサイズに限定されるため、回転盤のサイズもあまり大きくさせることはできない。
Even in the injection blow molding apparatus adopting the rotary transfer method, although the number of rows of neck molds can be increased by enlarging the turntable itself, there is a problem that the entire apparatus becomes large as a result. .. Also, for the convenience of transporting the injection blow molding machine to the end user, the size of the injection blow molding machine is limited to a size that can be mounted on a truck or carried into a shipping container, so the size of the rotating disk is also made too large. It is not possible.
本発明は、このような事情に鑑みてなされたものであり、大型化を抑制しつつ、生産性及び汎用性を向上した射出ブロー成形装置を提供することを目的とする。
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an injection blow molding apparatus having improved productivity and versatility while suppressing an increase in size.
上記課題を解決する本発明の一つの態様は、射出成形ステーションと、ブロー成形ステーションと、取出しステーションと、を少なくとも含む複数ステーションを備えると共に、複数の各ステーションに樹脂成形品を循環搬送する搬送装置を備える射出ブロー成形装置であって、前記搬送装置は、複数のリップ型が一列に固定される複数枚のリップ型固定プレートと、前記複数枚のリップ型固定プレートが並ぶ方向を列方向とした時に前記列方向に並設された前記リップ型固定プレートを間隔調整可能に保持するプレート保持部材と、を有するリップ型ユニットと、前記リップ型ユニットの縁部をスライド移動可能に支持して当該リップ型ユニットを各ステーションに循環搬送するための搬送路が下面に設けられた上部基盤と、前記リップ型ユニットを前記搬送路に沿って直線的にスライド移動させるスライド移動手段と、を備えていることを特徴とする射出ブロー成形装置にある。
One aspect of the present invention that solves the above-mentioned problems is to provide a plurality of stations including at least an injection molding station, a blow molding station, and a take-out station, and to convey a resin molded product to each of the plurality of stations in a circulating manner. An injection blow molding apparatus comprising: a plurality of lip mold fixing plates in which a plurality of lip molds are fixed in a row; and a direction in which the plurality of lip mold fixing plates are arranged is a column direction. A lip type unit having a plate holding member that holds the lip type fixing plates arranged in parallel in the row direction so that the distance between the lip type fixing plates can be adjusted, and an edge portion of the lip type unit is slidably supported to support the lip type unit. An upper base provided with a transport path on the lower surface for circulating and transporting the mold unit to each station, and slide moving means for linearly sliding the lip mold unit along the transport path. The injection blow molding device is characterized by
かかる本発明の射出ブロー成形装置によれば、樹脂成形品(例えば、プリフォーム等)を各ステーションに適切に搬送することができる。また、ネック型の列数を比較的容易に増加することができ、生産性や汎用性を向上した射出ブロー成形装置を実現することができる。
According to such an injection blow molding apparatus of the present invention, a resin molded product (for example, a preform) can be appropriately conveyed to each station. Further, the number of rows of neck molds can be increased relatively easily, and an injection blow molding apparatus with improved productivity and versatility can be realized.
ここで、前記搬送装置は、各ステーションに対応して設けられ、前記搬送路を横切る前記リップ型ユニットの各辺の縁部を支持するガイド部材と、前記リップ型ユニットを支持する第1の位置と前記リップ型ユニットとは干渉しない第2の位置との間で前記ガイド部材を移動させる移動手段と、を備えていることが好ましい。これにより、樹脂成形品を各ステーションに適切に搬送することができ、且つ各ステーションでは樹脂成形品を適切に保持することができる。
Here, the transport device is provided corresponding to each station, and a guide member that supports an edge portion of each side of the lip type unit that crosses the transport path, and a first position that supports the lip type unit. And a moving unit that moves the guide member between a second position that does not interfere with the lip type unit. Thereby, the resin molded product can be appropriately conveyed to each station, and the resin molded product can be appropriately held in each station.
また、前記搬送装置は、前記射出成形ステーション及び前記ブロー成形ステーションに対応して設けられ、前記リップ型ユニットを保持した状態で昇降可能な可動板を備えていることが好ましい。これにより、樹脂成形品をより適切に搬送することができる。
Further, it is preferable that the carrying device is provided with a movable plate that is provided corresponding to the injection molding station and the blow molding station, and that can move up and down while holding the lip type unit. Thereby, the resin molded product can be more appropriately conveyed.
また前記搬送装置は、前記射出成形ステーション及び前記ブロー成形ステーションに対応して設けられ、前記リップ型ユニットを保持した状態で昇降可能な可動板を備えていると共に、各ステーションに対応して設けられ、前記搬送路を横切る前記リップ型ユニットの各辺の縁部を支持するガイド部材と、前記リップ型ユニットを支持する第1の位置と前記リップ型ユニットとは干渉しない第2の位置との間で前記ガイド部材を移動させる移動手段と、を備え、前記ガイド部材及び前記移動手段が前記可動板に設けられていることが好ましい。これにより、射出成形ステーションやブロー成形ステーション等において、樹脂成形品を可動板に適切に保持することができ、樹脂成形品を可動板と共に良好に昇降させることができる。
The transfer device is provided corresponding to the injection molding station and the blow molding station, includes a movable plate that can be raised and lowered while holding the lip type unit, and is provided corresponding to each station. Between a guide member that supports an edge portion of each side of the lip type unit that crosses the transport path, and a first position that supports the lip type unit and a second position that does not interfere with the lip type unit. And moving means for moving the guide member, and the guide member and the moving means are preferably provided on the movable plate. Accordingly, the resin molded product can be appropriately held on the movable plate in the injection molding station, the blow molding station, or the like, and the resin molded product can be properly moved up and down together with the movable plate.
さらに前記ブロー成形ステーションに対応する前記可動板に設けられた前記ガイド部材は、前記リップ型固定プレートの間隔の拡張に伴い前記リップ型固定プレートと共に移動可能に構成されていることが好ましい。また前記ブロー成形ステーションに対応する前記可動板は、前記リップ型固定プレートの間隔を拡張した状態でも昇降可能に構成されていることが好ましい。これにより、リップ型ユニットによって樹脂成形品を各ステーションにより適切に搬送することができる。
Further, it is preferable that the guide member provided on the movable plate corresponding to the blow molding station is configured to be movable together with the lip type fixing plate as the gap between the lip type fixing plates is expanded. Further, it is preferable that the movable plate corresponding to the blow molding station is configured to be able to move up and down even when the gap between the lip type fixed plates is expanded. As a result, the resin molded product can be appropriately conveyed to each station by the lip type unit.
また前記プレート保持部材は、前記リップ型固定プレートがそれぞれ固定される複数個の分割部材と、これら複数個の前記分割部材をそれぞれ接離可能に連結する連結部材と、を備えていることが好ましい。これにより、ネック型の列間ピッチを容易に変更することができるため、ネック型の列数をより増加させやすくなる。
Further, it is preferable that the plate holding member includes a plurality of dividing members to which the lip-type fixing plates are fixed, and a connecting member that connects the plurality of dividing members to each other so as to be contactable and separable. .. With this, the pitch between the columns of the neck type can be easily changed, so that the number of columns of the neck type can be more easily increased.
さらに前記ブロー成形ステーションは、複数組のブロー金型を備え、前記分割部材は、前記ブロー金型を構成する底型にそれぞれ連結されることが好ましい。これにより、ブロー成形ステーションにおいて、ネック型の列間ピッチを適切に変更することができる。
Furthermore, it is preferable that the blow molding station is provided with a plurality of sets of blow molds, and the dividing members are respectively connected to bottom molds that constitute the blow molds. As a result, the pitch between the neck mold rows can be appropriately changed at the blow molding station.
また前記スライド移動手段は、各ステーション間に直線的に設けられるレール部材と、該レール部材上をスライド移動可能に設けられると共に前記プレート保持部材に係合するチャック部材と、前記チャック部材を前記レール部材に沿ってスライド移動させる動力源と、を備えていることが好ましい。これにより、リップ型ユニットを各ステーションに適切に搬送することができると共に、射出ブロー成形装置の大型化を抑制することができる。
The slide moving means includes a rail member linearly provided between the stations, a chuck member slidably mounted on the rail member and engaging with the plate holding member, and the chuck member being the rail member. And a power source that slides along the member. As a result, the lip type unit can be appropriately conveyed to each station, and the injection blow molding apparatus can be prevented from increasing in size.
以上のように、本発明の射出ブロー成形装置によれば、樹脂成形品を各ステーションに適切に搬送することができると共に、装置の大型化を抑制することができる。つまり、装置の大型化を抑制しつつ、生産性及び汎用性を向上した射出ブロー成形装置を実現することができる。
As described above, according to the injection blow molding apparatus of the present invention, it is possible to appropriately convey the resin molded product to each station and prevent the apparatus from increasing in size. That is, it is possible to realize an injection blow molding apparatus with improved productivity and versatility while suppressing the increase in size of the apparatus.
以下、本発明の一実施形態(第1の実施形態)について図面を参照して詳細に説明する。
Hereinafter, an embodiment (first embodiment) of the present invention will be described in detail with reference to the drawings.
図1は、本発明の一実施形態(第1の実施形態)に係る射出ブロー成形装置の概略構成を示すブロック図である。図2は、射出ブロー成形装置の正面側を示す図であり、射出成形ステーション、検査ステーション及び取出しステーションの概略構成を示す図である。図3は、射出ブロー成形装置が備える搬送装置の一例を示す斜視図であり、図4は、搬送装置が備える上部基盤の下面(底面)側を示す図である。
FIG. 1 is a block diagram showing a schematic configuration of an injection blow molding apparatus according to one embodiment (first embodiment) of the present invention. FIG. 2 is a diagram showing a front side of the injection blow molding apparatus, and is a diagram showing a schematic configuration of an injection molding station, an inspection station, and a take-out station. FIG. 3 is a perspective view showing an example of a transfer device included in the injection blow molding apparatus, and FIG. 4 is a view showing a lower surface (bottom surface) side of an upper base included in the transfer device.
本実施形態に係る射出ブロー成形装置は、例えば、PETボトル等の中空容器(樹脂成形品)を製造するための1ステップ式(ホットパリソン式)のブロー成形装置であり、それぞれ異なる製造工程を実施する複数のステーションを備えている。
The injection blow molding apparatus according to the present embodiment is, for example, a one-step (hot parison type) blow molding apparatus for manufacturing a hollow container (resin molded product) such as a PET bottle, and performs different manufacturing steps. It is equipped with multiple stations.
図1~図4に示すように、本実施形態に係る射出ブロー成形装置10は、少なくとも射出成形ステーション20と、ブロー成形ステーション40,50と、取出しステーション70と、を含む。具体的には、本実施形態に係る射出ブロー成形装置10は、射出成形ステーション20と、温調ステーション30と、第1のブロー成形ステーション40と、第2のブロー成形ステーション50と、検査ステーション60と、取出しステーション70と、を備えている。これら6つのステーション20~70は、射出ブロー成形装置10を構成する機台11上に設けられている。なお、後述するように本開示における搬送装置は、6ステーションを有する射出ブロー成形装置のみに適用されるものではない。例えば、後述する図11に示す4ステーションを有する射出ブロー成形装置や、後述する図15に示す5ステーションを有する射出ブロー成形装置に適用することも可能である。
As shown in FIGS. 1 to 4, the injection blow molding apparatus 10 according to the present embodiment includes at least an injection molding station 20, blow molding stations 40 and 50, and an ejection station 70. Specifically, the injection blow molding apparatus 10 according to the present embodiment includes an injection molding station 20, a temperature control station 30, a first blow molding station 40, a second blow molding station 50, and an inspection station 60. And a take-out station 70. These six stations 20 to 70 are provided on a machine base 11 that constitutes the injection blow molding apparatus 10. Note that, as will be described later, the transport device according to the present disclosure is not applied only to the injection blow molding device having 6 stations. For example, the invention can be applied to an injection blow molding device having four stations shown in FIG. 11 described later and an injection blow molding device having five stations shown in FIG. 15 described later.
射出成形ステーション(射出成形装置)20は、射出装置21がホットランナー型を介して接続される射出成形型22を備えており、射出装置21から射出成形型22に原材料である樹脂材料(例えば、PET樹脂)を射出することでプリフォームを成形する。
The injection molding station (injection molding device) 20 includes an injection mold 22 to which an injection device 21 is connected via a hot runner mold, and the injection device 21 supplies the injection mold 22 with a resin material (for example, a raw material). A preform is molded by injecting PET resin).
温調ステーション(温調装置)30は、プリフォームの温度を調整(加熱または冷却)するための温調金型(温調ポットおよび温調ロッド(温調コア、空冷ロッド、加熱コア))31を備えており、射出成形ステーション20から温調ステーション30に搬送されたプリフォームは、温調金型31内で所定温度となるように温度調整される。
The temperature control station (temperature control device) 30 is a temperature control mold (temperature control pot and temperature control rod (temperature control core, air cooling rod, heating core)) 31 for controlling (heating or cooling) the temperature of the preform. The temperature of the preform conveyed from the injection molding station 20 to the temperature control station 30 is adjusted in the temperature control mold 31 to a predetermined temperature.
第1のブロー成形ステーション(第1のブロー成形装置)40は、ブロー成形用金型(第1のブロー成形型および第1のブローコア型並びに延伸ロッド)41を備え、プリフォームから中間成形品を形成する。すなわち温調ステーション30では、第1のブロー成形ステーション40に搬送されたプリフォームがブロー成形用金型41内に配置され、このプリフォームを加圧気体(高圧エアー)によってブロー成形することで所定の大きさの中間成形品を形成する。
The first blow molding station (first blow molding device) 40 includes a blow molding die (first blow molding die and first blow core die and stretch rod) 41, and an intermediate molded product from a preform. Form. That is, in the temperature control station 30, the preform conveyed to the first blow molding station 40 is placed in the blow molding die 41, and the preform is blow-molded with a pressurized gas (high pressure air) to obtain a predetermined shape. To form an intermediate molded product having a size of.
第2のブロー成形ステーション(第2のブロー成形装置)50は、ブロー成形用金型(第2のブロー成形型および第1のブローコア型並びに延伸ロッド)51を備え、中間成形品から最終成形品である中空容器を形成する。すなわち第1のブロー成形ステーション40では、第2のブロー成形ステーション50に搬送された中間成形品がブロー成形用金型51内に配置され、この中間成形品を加圧気体(高圧エアー)によってブロー成形することで最終成形品である中空容器を形成する。
The second blow molding station (second blow molding device) 50 includes blow molding dies (second blow molding die and first blow core die and stretch rod) 51, and includes intermediate molded products to final molded products. To form a hollow container. That is, in the first blow molding station 40, the intermediate molded product conveyed to the second blow molding station 50 is placed in the blow molding die 51, and the intermediate molded product is blown by pressurized gas (high pressure air). By molding, a hollow container which is the final molded product is formed.
検査ステーション(検査装置)60は、第2のブロー成形ステーション50から搬送された中空容器の検品(リーク検査等)を行うステーションである。検査ステーション60での検査方法は特に限定されず、既存の検査方法を採用すればよい。検査ステーション60にて良品と判断された中空容器は、取出しステーション70に搬送され、この取出しステーション70から装置外に取り出される。
The inspection station (inspection device) 60 is a station for inspecting the hollow container conveyed from the second blow molding station 50 (leak inspection, etc.). The inspection method at the inspection station 60 is not particularly limited, and an existing inspection method may be adopted. The hollow container determined to be non-defective by the inspection station 60 is transported to the take-out station 70 and taken out of the apparatus from the take-out station 70.
このような射出成形ステーション20、温調ステーション30、第1のブロー成形ステーション40、第2のブロー成形ステーション50、検査ステーション60及び取出しステーション70は、機台11上に3ステーションずつ2列に配置されており、射出ブロー成形装置10の全体としては、上面視において略矩形状となっている。
The injection molding station 20, the temperature control station 30, the first blow molding station 40, the second blow molding station 50, the inspection station 60, and the take-out station 70 are arranged in two rows of three stations on the machine base 11. As a whole, the injection blow molding apparatus 10 has a substantially rectangular shape in a top view.
そして射出ブロー成形装置10は、射出成形ステーション20から、温調ステーション30、第1のブロー成形ステーション40、第2のブロー成形ステーション50及び検査ステーション60を介して、取出しステーション70まで樹脂成形品(プリフォーム、中間成形品又は中空容器)を順次搬送する搬送装置100を備えている。搬送装置100は、図1中に矢印で示すようにリップ型ユニット110を各ステーションに循環搬送する。
Then, the injection blow molding apparatus 10 passes from the injection molding station 20 through the temperature control station 30, the first blow molding station 40, the second blow molding station 50, and the inspection station 60 to the take-out station 70 to form a resin molded product ( A transport device 100 for sequentially transporting a preform, an intermediate molded product or a hollow container is provided. The transport device 100 circulates and transports the lip type unit 110 to each station as indicated by an arrow in FIG.
本実施形態に係る射出ブロー成形装置10は、この搬送装置100の構成に特徴がある。以下では主に、搬送装置100の構成について詳しく説明する。
The injection blow molding device 10 according to the present embodiment is characterized by the configuration of the transfer device 100. Below, the structure of the conveyance apparatus 100 is mainly demonstrated in detail.
搬送装置100は、図1~図4に示すように、樹脂成形品(プリフォーム、中間成形品又は中空容器)のリップ部(ネック部)を形成する複数のリップ型23(図5参照)を含むリップ型ユニット110を備え、このリップ型ユニット110を上部基盤120の表面(下面)に沿って各ステーションに順次搬送する。
As shown in FIGS. 1 to 4, the transport device 100 includes a plurality of lip dies 23 (see FIG. 5) that form a lip portion (neck portion) of a resin molded product (preform, intermediate molded product or hollow container). It includes a lip type unit 110 including the lip type unit 110, and sequentially conveys the lip type unit 110 to each station along the surface (lower surface) of the upper substrate 120.
本実施形態では、搬送装置100は、6つのステーションに対して6つのリップ型ユニット110を備えており、これら複数台のリップ型ユニット110を各ステーションに循環搬送する。
In the present embodiment, the transfer device 100 includes six lip-type units 110 for six stations, and the plurality of lip-type units 110 are circulated and transferred to each station.
ここで、リップ型ユニット110について説明する。図5は、リップ型ユニットの概略構成を示す図であり、図5(a)はリップ型の列間ピッチが最小である状態を示す図であり、図5(b)はリップ型の列間ピッチが最大である状態を示す図である。
Here, the lip type unit 110 will be described. FIG. 5 is a diagram showing a schematic configuration of the lip type unit, FIG. 5(a) is a diagram showing a state where the pitch between the rows of the lip type is minimum, and FIG. It is a figure which shows the state where a pitch is the maximum.
リップ型ユニット110は、図5(a)及び図5(b)に示すように、複数枚(本実施形態では4枚)のリップ型固定プレート111(111a~111d)と、これら複数枚のリップ型固定プレート111を所定間隔で保持する枠状のプレート保持部材112と、を備えている。なお、後述するようにリップ型固定プレートは4枚(4列)に限られず、2枚(2列)、3枚(3列)等であってもよい。ここで、複数枚のリップ型固定プレート111が並ぶ方向を列方向とする。
As shown in FIGS. 5A and 5B, the lip type unit 110 includes a plurality of (four in this embodiment) lip type fixing plates 111 (111a to 111d) and a plurality of these lip types. And a frame-shaped plate holding member 112 that holds the mold fixing plate 111 at predetermined intervals. Note that, as will be described later, the number of lip type fixing plates is not limited to four (four rows), and may be two (two rows), three (three rows) and the like. Here, the direction in which the plurality of lip-type fixing plates 111 are arranged is referred to as the column direction.
各リップ型固定プレート111には、複数個(本実施形態では、6個)の固定孔113が一列に形成されている。これらの固定孔113には、一対の割型からなるリップ型23がそれぞれ固定されている。また各リップ型固定プレート111(111a~111d)は、一対の分割プレート114a,114bで構成されている。そして、これら一対の分割プレート114a,114bに、リップ型23を構成する割型がそれぞれ固定されている。
A plurality of (6 in the present embodiment) fixing holes 113 are formed in a line in each lip-type fixing plate 111. A lip die 23 composed of a pair of split dies is fixed in each of the fixing holes 113. Each lip type fixed plate 111 (111a to 111d) is composed of a pair of divided plates 114a and 114b. The split molds that form the lip mold 23 are fixed to the pair of split plates 114a and 114b, respectively.
なおリップ型固定プレート111を構成する一対の分割プレート114a,114bは、通常、スプリング等によって付勢されて両者が密着した状態(リップ型23が閉じられた状態)に保持されている。また分割プレート114a,114bの合せ面には、その長手方向の両端部に楔状孔115が形成されている。中空容器を保持したリップ型ユニット110が、取出しステーション70に搬送された際、この楔状孔115にエジェクトカム71(図2参照)を進入させることで、分割プレート114a,114bが引き離されて、リップ型23による中空容器の保持が解除されるようになっている。
The pair of split plates 114a and 114b forming the lip type fixed plate 111 are normally biased by a spring or the like and are held in a state in which they are in close contact (the state where the lip type 23 is closed). Further, wedge-shaped holes 115 are formed at both ends in the longitudinal direction of the mating surfaces of the division plates 114a and 114b. When the lip-type unit 110 holding the hollow container is conveyed to the take-out station 70, the ejecting cam 71 (see FIG. 2) is caused to enter the wedge-shaped hole 115, whereby the split plates 114a and 114b are separated and the lip-type unit 110 is pulled out. The holding of the hollow container by the mold 23 is released.
またプレート保持部材112は、1列に形成された複数のリップ型23の並ぶ方向とは直交する方向(列方向)に並設された複数枚のリップ型固定プレート111を保持すると共に、これら複数枚のリップ型固定プレート111の間隔を調整可能に構成されている。すなわちプレート保持部材112は、一対の分割プレート114a,114bが密着した状態(リップ型23が閉じられた状態)で、リップ型固定プレート111の間隔(リップ型23の列間ピッチ)を変更可能に構成されている。
Further, the plate holding member 112 holds a plurality of lip die fixing plates 111 arranged in parallel in a direction (row direction) orthogonal to a direction in which the plurality of lip dies 23 formed in one row are arranged, The distance between the lip-type fixed plates 111 is adjustable. That is, the plate holding member 112 can change the interval (the pitch between the rows of the lip dies 23) between the lip die fixing plates 111 when the pair of split plates 114a and 114b are in close contact (the lip die 23 is closed). It is configured.
本実施形態では、プレート保持部材112は、各リップ型固定プレート111間にて分割されており、複数(例えば、6つ)の分割部材116a~116fで構成されている(図5(b)参照)。6つの分割部材116a~116fのうち、その並び方向の両外側に位置する分割部材116a,116fは、それぞれ略コ字に形成されており、リップ型固定プレート111a,111dの両端部を支持している。
In the present embodiment, the plate holding member 112 is divided between the lip type fixed plates 111, and is composed of a plurality of (for example, six) dividing members 116a to 116f (see FIG. 5B). ). Of the six dividing members 116a to 116f, the dividing members 116a and 116f located on both outer sides in the arrangement direction are formed in a substantially U shape and support both end portions of the lip type fixing plates 111a and 111d. There is.
これに対し、並び方向の中央部に設けられる分割部材116b~116eは、リップ型固定プレート111b,111cの一端側をそれぞれスライド可能に支持する。分割部材116b,116cがリップ型固定プレート111bの両端部をそれぞれスライド可能に支持し、分割部材116d,116eがリップ型固定プレート111cの両端部をそれぞれスライド可能に支持している。
On the other hand, the dividing members 116b to 116e provided in the central portion in the arrangement direction slidably support one end sides of the lip type fixing plates 111b and 111c. The dividing members 116b and 116c slidably support both ends of the lip type fixing plate 111b, and the dividing members 116d and 116e slidably support both ends of the lip type fixing plate 111c.
隣接する各分割部材116は、それぞれ連結ピン117及び連結ピン117が挿入される長孔118を備えた連結部材119によって連結されている。連結ピン117は、隣接する分割部材116の一方に設けられ、連結部材119は、連結ピン117が長孔118に挿入された状態で、他方の分割部材116に固定されている。
The adjacent dividing members 116 are connected by a connecting member 119 having a connecting pin 117 and a long hole 118 into which the connecting pin 117 is inserted. The connecting pin 117 is provided on one of the adjacent dividing members 116, and the connecting member 119 is fixed to the other dividing member 116 with the connecting pin 117 inserted into the elongated hole 118.
これにより、長孔118の長さの範囲で、隣接する各分割部材116の間隔を調整できるようになっている。すなわちリップ型固定プレート111を構成する一対の分割プレート114が密着された状態(リップ型23が閉じられた状態)で、各リップ型固定プレート111の間隔(リップ型23の列間ピッチ)を適宜調整することができる。
With this, the distance between the adjacent division members 116 can be adjusted within the range of the length of the long holes 118. That is, in a state where the pair of split plates 114 constituting the lip type fixing plate 111 are in close contact (the state where the lip type 23 is closed), the interval between the lip type fixing plates 111 (the pitch between the rows of the lip type 23) is appropriately set. Can be adjusted.
本実施形態では、このような連結ピン117及び連結部材119によって各分割部材116を連結するようにしたが、各分割部材116の連結構造は特に限定されるものではなく、リップ型23の列間ピッチを調整できる構造であればよい。
In the present embodiment, the dividing members 116 are connected by the connecting pin 117 and the connecting member 119 as described above, but the connecting structure of the dividing members 116 is not particularly limited, and between the rows of the lip type 23. Any structure that can adjust the pitch may be used.
そして搬送装置100は、このような構成の複数台のリップ型ユニット110を、上部基盤120の表面(下面)に沿って各ステーションに順次搬送する。
Then, the transfer device 100 sequentially transfers the plurality of lip type units 110 having such a configuration to each station along the surface (lower surface) of the upper substrate 120.
図1~図4に戻り、上部基盤120は、射出成形ステーション20、温調ステーション30、第1のブロー成形ステーション40、第2のブロー成形ステーション50、検査ステーション60及び取出しステーション70に対応して設けられ、複数本の脚部121によって機台11上に固定されている。
1 to 4, the upper substrate 120 corresponds to the injection molding station 20, the temperature control station 30, the first blow molding station 40, the second blow molding station 50, the inspection station 60, and the ejection station 70. It is provided and fixed on the machine base 11 by a plurality of legs 121.
この上部基盤120の下面側には、リップ型ユニット110を搬送するための略矩形状の搬送路122が設けられている。すなわち上部基盤120の下面には、リップ型ユニット110の縁部をスライド可能に支持する複数のスライド支持部材123が内外二重の環状に配置されており、内側のスライド支持部材123aと外側のスライド支持部材123bとの間の領域が搬送路122となっている(図4参照)。
On the lower surface side of the upper substrate 120, a substantially rectangular transport path 122 for transporting the lip type unit 110 is provided. That is, on the lower surface of the upper base 120, a plurality of slide support members 123 that slidably support the edge of the lip type unit 110 are arranged in an inner and outer double ring, and the inner slide support member 123a and the outer slide member 123a. The area between the support member 123b and the support member 123b is the transport path 122 (see FIG. 4).
各スライド支持部材123は、図6の断面図に示すように、上部基盤120の下面に、例えば、断面がL字状となるように突出して折れ曲がった先端部が搬送路122の内側を向くように設けられている。リップ型ユニット110は、このようなスライド支持部材123によって縁部110aが支持されて搬送路122に沿ってスライド移動可能となっている。なお、スライド支持部材123は、リップ型ユニット110をスライド移動可能に支持できるものであればよく、その形状は特に限定されるものではない。
As shown in the cross-sectional view of FIG. 6, each slide support member 123 has a lower end of the upper base 120, for example, a tip end that is bent and protrudes so as to have an L-shaped cross section and faces the inside of the transport path 122. It is provided in. The lip type unit 110 is slidable along the transport path 122 with the edge portion 110 a supported by the slide support member 123. The slide support member 123 is not particularly limited as long as it can slidably support the lip type unit 110, and the shape thereof is not particularly limited.
また各ステーションに対応する上部基盤120には、リップ型ユニット110の各リップ型を露出させるための略矩形状の貫通孔124(124a~124f)が設けられている。上述のスライド支持部材123は、各ステーションにおいて貫通孔124の外側に設けられており(図4参照)、搬送路122に沿ってスライド移動したリップ型ユニット110は各貫通孔124に対向する位置で保持されるようになっている。貫通孔124により、上部基盤120の上方に設けられ昇降される各ステーション用の成形処理部材(射出コア型、温調ロッド型、ブローコア型、延伸ロッド、エジェクトカム)を、リップ型23やプリフォームに侵入または当接させることができる。
Further, the upper base 120 corresponding to each station is provided with substantially rectangular through holes 124 (124a to 124f) for exposing each lip die of the lip die unit 110. The above-mentioned slide support member 123 is provided outside the through holes 124 at each station (see FIG. 4), and the lip type unit 110 that has slid along the transport path 122 is located at a position facing each through hole 124. It is supposed to be retained. Through the through holes 124, molding processing members (injection core type, temperature control rod type, blow core type, stretch rod, eject cam) for each station that are provided above the upper base 120 and are moved up and down are used. Can enter or abut.
なおリップ型ユニット110は、上述のようにリップ型23の列間ピッチを変更可能に構成されている。本実施形態では、温調ステーション30、検査ステーション60及び取出しステーション70に設けられる貫通孔124b,124e,124fは、リップ型23の列間ピッチを最小にした状態でリップ型ユニット110の各リップ型を露出させる程度の大きさを有している。そして、これら温調ステーション30、検査ステーション60及び取出しステーション70においてスライド支持部材123は、上部基盤120に取り付けられている。
The lip type unit 110 is configured so that the pitch between the rows of the lip type 23 can be changed as described above. In the present embodiment, the through holes 124b, 124e, and 124f provided in the temperature control station 30, the inspection station 60, and the take-out station 70 are provided in the lip mold units 110 in a state where the pitch between rows of the lip molds 23 is minimized. It is large enough to expose. The slide support member 123 is attached to the upper base 120 in the temperature control station 30, the inspection station 60, and the take-out station 70.
また搬送装置100は、リップ型23を昇降させる必要があるステーションに、リップ型ユニット110を保持した状態で昇降可能な可動板130を備えている。本実施形態では、射出成形ステーション20、第1のブロー成形ステーション40及び第2のブロー成形ステーション50の各成形ステーションに、可動板130(130A,130B,130C)がそれぞれ設けられている。各可動板130には、リップ型の列間ピッチを最小にした状態で、リップ型ユニット110の各リップ型を露出させる大きさの露出口131が設けられている。
Further, the transfer device 100 is provided with a movable plate 130 that can be lifted and lowered while holding the lip mold unit 110 at a station where the lip mold 23 needs to be lifted and lowered. In this embodiment, the movable plate 130 (130A, 130B, 130C) is provided in each of the injection molding station 20, the first blow molding station 40, and the second blow molding station 50. Each movable plate 130 is provided with an exposure opening 131 of a size that exposes each lip die of the lip die unit 110 in a state where the pitch between rows of the lip die is minimized.
射出成形ステーション20、第1のブロー成形ステーション40及び第2のブロー成形ステーション50に設けられる貫通孔124a,124c,124dは、可動板130(130A、130B,130C)を収容可能な大きさを有している。言い換えれば、可動板130は、上部基盤120の貫通孔124a,124c,124d内に収容可能に設けられている。
The through holes 124a, 124c, 124d provided in the injection molding station 20, the first blow molding station 40, and the second blow molding station 50 have a size capable of accommodating the movable plate 130 (130A, 130B, 130C). doing. In other words, the movable plate 130 is provided so as to be accommodated in the through holes 124a, 124c, 124d of the upper base 120.
ここで、射出成形ステーション20に対応する可動板130Aは、リップ型23の列間ピッチを最小にしたリップ型ユニットを保持できる大きさで形成されている。このため、可動板130Aに対応する貫通孔124aも、リップ型23の列間ピッチを最小にした状態のリップ型ユニット110が露出される程度の大きさで形成されている。
Here, the movable plate 130A corresponding to the injection molding station 20 is formed in a size capable of holding the lip type unit in which the inter-row pitch of the lip types 23 is minimized. Therefore, the through holes 124a corresponding to the movable plate 130A are also formed in such a size that the lip die unit 110 in a state where the pitch between rows of the lip die 23 is minimized is exposed.
そして、射出成形ステーション20においてスライド支持部材123は、露出口131が形成された可動板130に取り付けられている。すなわち可動板130は、スライド支持部材123を含む部材によってリップ型ユニット110を保持し、上部基盤120と射出成形型(射出キャビティ型)22との間で昇降可能に構成されている。
Then, in the injection molding station 20, the slide support member 123 is attached to the movable plate 130 in which the exposure opening 131 is formed. That is, the movable plate 130 holds the lip mold unit 110 by a member including the slide support member 123, and is configured to be movable up and down between the upper base 120 and the injection molding mold (injection cavity mold) 22.
例えば、射出成形ステーション20は、図2に示すように、いわゆる縦締め型の射出成形装置を備えており、上部基盤120の上方には、射出コア型(図示は省略)を進退移動(昇降)させる駆動機構部200が設けられている。上部基盤120の上方には、さらに、複数本(例えば、4本)のエアシリンダを備え、可動板130を昇降させる昇降装置(昇降手段)140が設けられている。昇降装置140と可動板130とはロッド部材145を介して接続されるようになっている。そして可動板130は、リップ型ユニット110を保持した状態で、昇降装置140によって上部基盤120と射出成形型(射出キャビティ型)22との間で昇降可能となっている。
For example, the injection molding station 20 is provided with a so-called vertical tightening type injection molding device as shown in FIG. 2, and an injection core mold (not shown) is moved forward and backward (elevated) above the upper base 120. A drive mechanism section 200 is provided. Above the upper base 120, a plurality of (for example, four) air cylinders are further provided, and an elevating device (elevating means) 140 for elevating the movable plate 130 is provided. The elevating device 140 and the movable plate 130 are connected via a rod member 145. The movable plate 130 can be moved up and down between the upper base 120 and the injection molding die (injection cavity die) 22 by the elevating device 140 while holding the lip die unit 110.
一方、第1のブロー成形ステーション40に対応する可動板130B及び第2のブロー成形ステーション50に対応する可動板130Cは、リップ型23の列間ピッチを最大にしたリップ型ユニット110を保持できる大きさ及び形状に形成されている。このため、可動板130B,130Cに対応する貫通孔124c,124dも、リップ型23の列間ピッチを最大にした状態のリップ型ユニット110が露出される程度の大きさで形成されている。
On the other hand, the movable plate 130B corresponding to the first blow molding station 40 and the movable plate 130C corresponding to the second blow molding station 50 are large enough to hold the lip mold unit 110 in which the row pitch of the lip molds 23 is maximized. It has a shape and a shape. Therefore, the through holes 124c and 124d corresponding to the movable plates 130B and 130C are also formed in such a size that the lip type unit 110 in which the pitch between the rows of the lip types 23 is maximized is exposed.
可動板130B,130Cは、本実施形態では、露出口131が形成された枠状の本体部132と、本体部132からリップ型23の列間方向の外側に延設される一対の延設部133とを有している。そして可動板130の本体部132から延設部133に亘ってスライド支持部材123が設けられている(図3等参照)。
In the present embodiment, the movable plates 130</b>B and 130</b>C include a frame-shaped main body portion 132 in which the exposure opening 131 is formed, and a pair of extension portions that extend from the main body portion 132 to the outer side in the row-to-row direction of the lip mold 23. And 133. A slide support member 123 is provided from the main body portion 132 of the movable plate 130 to the extension portion 133 (see FIG. 3 and the like).
これにより可動板130は、リップ型23の列間ピッチを最小にした状態はもちろん、列間ピッチを最大にした状態でも、リップ型ユニット110を保持することができるようになっている。すなわちリップ型ユニット110は、可動板130に保持された状態で列間ピッチを変更することができるようになっている。
With this, the movable plate 130 can hold the lip type unit 110 not only when the row pitch of the lip dies 23 is minimized but also when the row pitch is maximized. That is, the lip-type unit 110 can change the pitch between rows while being held by the movable plate 130.
また、これら第1のブロー成形ステーション40及び第2のブロー成形ステーション50においても、可動板130C,130Dは、スライド支持部材123を含む部材によってリップ型ユニット110を保持し、上部基盤120とブロー成形用金型(ブローキャビティ型)41,51との間で昇降可能に構成されている。なお可動板130B,130Cは、射出成形ステーション20の可動板130Aと同様に、上部基盤120の上方に設けられた昇降装置によって昇降可能となっている。
Further, also in the first blow molding station 40 and the second blow molding station 50, the movable plates 130C and 130D hold the lip type unit 110 by a member including the slide support member 123, and the upper base 120 and the blow molding unit. It is configured to be able to move up and down between the metal molds (blow cavity molds) 41 and 51. Like the movable plate 130A of the injection molding station 20, the movable plates 130B and 130C can be moved up and down by an elevating device provided above the upper base 120.
搬送装置100は、さらに、各ステーションにおいてリップ型ユニット110を保持するためのガイド部材(保持部材)125を、搬送路122を形成するスライド支持部材123とは別に備えている。ガイド部材125は、各ステーションにおいて、搬送路122を横切るリップ型ユニット110の二辺に対応して設けられている。これらのガイド部材125は、リップ型ユニット110の搬送の妨げにならないように移動装置(移動手段)126によって移動可能に設けられている。
The transfer device 100 further includes a guide member (holding member) 125 for holding the lip type unit 110 at each station, separately from the slide support member 123 forming the transfer path 122. The guide member 125 is provided at each station so as to correspond to two sides of the lip type unit 110 that crosses the transport path 122. These guide members 125 are movably provided by a moving device (moving means) 126 so as not to hinder the conveyance of the lip type unit 110.
図7に示すように、移動装置126は、例えば、エアシリンダ等で構成される2つのアクチュエータ(動力源)127を備え、リップ型ユニット110の縁部110aを保持する第1の位置(図7(a)参照)と、リップ型ユニット110の移動とは干渉しない第2の位置(図2(b)参照)とに、ガイド部材125を適宜移動させる。
As shown in FIG. 7, the moving device 126 includes, for example, two actuators (power sources) 127 configured by air cylinders or the like, and has a first position (FIG. 7) that holds the edge portion 110a of the lip type unit 110. The guide member 125 is appropriately moved to a second position (see FIG. 2B) that does not interfere with the movement of the lip type unit 110 (see (a)).
これらのガイド部材125及び移動装置126は、スライド支持部材123と同様に、温調ステーション30、検査ステーション60及び取出しステーション70においては上部基盤120に取り付けられており、射出成形ステーション20、第1のブロー成形ステーション40及び第2のブロー成形ステーション50においては可動板130に取り付けられている。つまり本実施形態では、可動板130は、スライド支持部材123及びガイド部材125によってリップ型ユニット110を保持した状態で昇降可能に構成されている。なお図7では、上部基盤120、可動板130の図示を省略している。
Like the slide support member 123, the guide member 125 and the moving device 126 are attached to the upper base 120 in the temperature control station 30, the inspection station 60, and the take-out station 70, and the injection molding station 20 and the first base 120 are attached. In the blow molding station 40 and the second blow molding station 50, the movable plate 130 is attached. That is, in this embodiment, the movable plate 130 is configured to be movable up and down while the lip type unit 110 is held by the slide support member 123 and the guide member 125. Note that the upper substrate 120 and the movable plate 130 are not shown in FIG. 7.
このガイド部材125及び移動装置126は、必要に応じて設けられればよく、例えば、スライド支持部材123によってリップ型ユニット110を適切に保持することができれば、必ずしも設けられていなくてもよい。
The guide member 125 and the moving device 126 may be provided as needed. For example, the guide member 125 and the moving device 126 may not be provided as long as the slide support member 123 can appropriately hold the lip type unit 110.
ところで、上述のように第1のブロー成形ステーション40及び第2のブロー成形ステーション50に対応する可動板130B,130Cは、本体部132と延設部133とを備えており、リップ型23の列間ピッチを最小にした状態はもちろん、列間ピッチを最大にした状態でも、リップ型ユニット110を保持することができるようになっている。
By the way, as described above, the movable plates 130B and 130C corresponding to the first blow molding station 40 and the second blow molding station 50 are provided with the main body portion 132 and the extending portion 133, and the row of the lip mold 23 is provided. The lip type unit 110 can be held not only in the state in which the inter-row pitch is minimized but also in the state in which the inter-row pitch is maximized.
そしてリップ型ユニット110のリップ型23の列間ピッチの拡張する際、一対の延設部133間に設けられるガイド部材125(125a)は、移動装置126によって第2の位置に移動させる。これにより、リップ型ユニット110がガイド部材125に干渉することなく、リップ型23の列間ピッチを適切に拡張することができる。
Then, when the pitch between the rows of the lip dies 23 of the lip die unit 110 is expanded, the guide member 125 (125 a) provided between the pair of extending portions 133 is moved to the second position by the moving device 126. Thereby, the inter-row pitch of the lip dies 23 can be appropriately expanded without the lip die unit 110 interfering with the guide member 125.
また可動板130C,130Dの一対の延設部133間には、例えば、エアシリンダ等を備えリップ型の列間ピッチが拡張されたリップ型ユニット110を押圧する第1のピッチ変換機構160(ピッチ縮小機構)が設けられている(図3等参照)。この第1のピッチ変換機構160によってリップ型ユニット110を押圧することで、リップ型ユニット110のリップ型23の列間ピッチを縮小させることができるようになっている。なお第1のピッチ変換機構160の構成は、リップ型ユニット110を押圧することができるものであれば、特に限定されるものではない。
In addition, between the pair of extending portions 133 of the movable plates 130C and 130D, for example, the first pitch converting mechanism 160 (pitch) that presses the lip type unit 110 that includes an air cylinder etc. A reduction mechanism) is provided (see FIG. 3, etc.). By pressing the lip type unit 110 by the first pitch converting mechanism 160, the pitch between rows of the lip dies 23 of the lip type unit 110 can be reduced. The configuration of the first pitch conversion mechanism 160 is not particularly limited as long as it can press the lip type unit 110.
搬送装置100は、さらに、上部基盤120に設けられた搬送路122に沿ってリップ型ユニット110を各ステーションに移動させるスライド移動装置(スライド移動手段)170を備えている。すなわちスライド移動装置170は、上部基盤120の下面(底面)側に設けられ、スライド支持部材123によって支持されているリップ型ユニット110を直線的にスライド移動させる。
The transfer device 100 further includes a slide transfer device (slide transfer means) 170 that moves the lip type unit 110 to each station along a transfer path 122 provided on the upper base 120. That is, the slide moving device 170 is provided on the lower surface (bottom surface) side of the upper substrate 120 and linearly slides the lip type unit 110 supported by the slide supporting member 123.
本実施形態に係るスライド移動装置170は、いわゆるサーボスライダーであり、図4及び図8に示すように、隣接する各ステーション間に直線的に設けられるレール部材171と、このレール部材171上をスライド移動可能に設けられるスライド部材172と、モータ等を有してスライド部材172をレール部材171に沿って移動させる動力源173と、を備えている。
The slide movement device 170 according to the present embodiment is a so-called servo slider, and as shown in FIGS. 4 and 8, a rail member 171 linearly provided between adjacent stations and a slide on the rail member 171. A slide member 172 that is movably provided and a power source 173 that has a motor or the like and moves the slide member 172 along the rail member 171 are provided.
そして、スライド移動装置170を構成する各レール部材171は、矩形状の上部基盤120の外周部に、上部基盤120の各辺に沿って配置されている。すなわち各レール部材171は、矩形状に配置された各ステーションの外周部に沿って配置されている。
Each rail member 171 that constitutes the slide moving device 170 is arranged on the outer peripheral portion of the rectangular upper base 120 along each side of the upper base 120. That is, each rail member 171 is arranged along the outer peripheral portion of each station arranged in a rectangular shape.
また本実施形態では、スライド移動装置170を構成する各レール部材171及びスライド部材172は、隣接する各ステーション間に個別に設けられている。ただし、一列に配置されている複数のレール部材171上に設けられる各スライド部材172は、一つの動力源173によって移動させている。
Further, in the present embodiment, each rail member 171 and slide member 172 configuring the slide movement device 170 are individually provided between adjacent stations. However, each slide member 172 provided on the plurality of rail members 171 arranged in a line is moved by one power source 173.
ここで、スライド部材172は、図8に示すように、レール部材171からリップ型ユニット110側に向かって進退可能なチャック部材174を備えている。このチャック部材174は、リップ型ユニット110側に向かって突出する係合突起部175を備えている。一方、リップ型ユニット110の側面(後述するプレート保持部材の側面)には、係合突起部175が係合する係合凹部180が形成されている。
Here, as shown in FIG. 8, the slide member 172 is provided with a chuck member 174 that can move forward and backward from the rail member 171 toward the lip type unit 110. The chuck member 174 includes an engagement protrusion 175 that protrudes toward the lip type unit 110 side. On the other hand, on the side surface of the lip type unit 110 (the side surface of a plate holding member described later), an engagement concave portion 180 with which the engagement protrusion 175 is engaged is formed.
そしてスライド移動装置170は、このチャック部材174の係合突起部175が、リップ型ユニット110の係合凹部180に係合することでリップ型ユニット110に連結されるようになっている。なお図8(a)は、図示する一方のスライド移動装置170において、チャック部材174が係合凹部180に係合していない状態を示し、図8(b)はチャック部材174が係合凹部180に係合した状態を示している。また図8では、上部基盤120、可動板130の図示を省略している。この構成により、チャック部材174を介してリップ型ユニット110を、搬送装置100(射出ブロー成形装置10)に対して脱着させることができる。
In the slide moving device 170, the engagement protrusion 175 of the chuck member 174 engages with the engagement recess 180 of the lip type unit 110 so that it is coupled to the lip type unit 110. Note that FIG. 8A shows a state in which the chuck member 174 is not engaged with the engaging recess 180 in the one slide moving device 170 shown, and FIG. 8B shows that the chuck member 174 has the engaging recess 180. Shows the state of being engaged with. Further, in FIG. 8, the upper substrate 120 and the movable plate 130 are not shown. With this configuration, the lip type unit 110 can be attached to and detached from the transfer device 100 (the injection blow molding device 10) via the chuck member 174.
なお、スライド移動装置170には、ステーション数と同数のチャック部材174が備えられているのが望ましい。また、各リップ型固定プレート111の間隔(ピッチ)を成形時に変更する必要がある場合、この間隔を維持したままリップ型ユニット110をステーション間で搬送する必要がある。よって、チャック部材174は、射出成形ステーション20から温調ステーション30への搬送等で用いられる狭ピッチ用の第1のチャック部材と、第1のブロー成形ステーション40から第2のブロー成形ステーション50への搬送等で用いられる広ピッチ用の第2のチャック部材とからなる等、少なくとも2種類のピッチパターンに対応可能なように構成されるのが望ましい。
It is desirable that the slide moving device 170 is provided with the same number of chuck members 174 as the number of stations. Further, when it is necessary to change the interval (pitch) of each lip type fixing plate 111 during molding, it is necessary to convey the lip type unit 110 between stations while maintaining this interval. Therefore, the chuck member 174 includes a first chuck member for a narrow pitch used for transportation from the injection molding station 20 to the temperature control station 30, and the like, and the first blow molding station 40 to the second blow molding station 50. It is desirable to be configured so as to be able to correspond to at least two kinds of pitch patterns, such as being composed of a second chuck member for wide pitch which is used in the conveyance of the above.
ところで、第1のブロー成形ステーション40ではブロー成形により中間成形品を形成するにあたり、また第2のブロー成形ステーション50ではブロー成形により中空容器を形成するにあたり、リップ型固定プレート111の間隔(リップ型23の列間ピッチ)を変更する必要がある。例えば、リップ型23によって中空容器を保持したまま、中空容器をブロー成形用金型51から取り出すには、ブロー成形用金型51の型開き(ブローキャビティ型の型開き)に合わせてリップ型固定プレート111の間隔を広げる必要がある。
By the way, at the first blow molding station 40 when forming an intermediate molded product by blow molding, and at the second blow molding station 50 when forming a hollow container by blow molding, the gap between the lip mold fixing plates 111 (lip mold It is necessary to change the pitch 23 between columns). For example, in order to take out the hollow container from the blow molding mold 51 while holding the hollow container by the lip mold 23, the lip mold is fixed according to the mold opening of the blow molding mold 51 (the mold opening of the blow cavity mold). It is necessary to increase the distance between the plates 111.
本実施形態に係るリップ型ユニット110は、上述のように各リップ型固定プレート111の間隔(リップ型23の列間ピッチ)を適宜調整することができる。したがって、第1のブロー成形ステーション40で中間成形品を形成した際、ブロー成形用金型41から中間成形品を良好に取り出すことができる。また第2のブロー成形ステーション50で中空容器を形成した際、中空容器をブロー成形用金型51から良好に取り出すことができる。
In the lip type unit 110 according to the present embodiment, as described above, the interval between the lip type fixing plates 111 (the pitch between the rows of the lip types 23) can be appropriately adjusted. Therefore, when the intermediate molded product is formed in the first blow molding station 40, the intermediate molded product can be satisfactorily taken out from the blow molding die 41. Further, when the hollow container is formed in the second blow molding station 50, the hollow container can be satisfactorily taken out from the blow molding die 51.
そして本実施形態では、中間成形品をブロー成形用金型41から取り出す際、ブロー成形用金型41の型開きに同期してリップ型固定プレート111の間隔が調整されるようにしている。同様に、中空容器をブロー成形用金型51から取り出す際、ブロー成形用金型51の型開きに同期してリップ型固定プレート111の間隔が調整されるようにしている。なおブロー成形用金型41,51は、ブローキャビティの形状が若干異なる以外は同様の構成であるため、ここでは第2のブロー成形ステーション50が備えるブロー成形用金型51について説明する。
In this embodiment, when the intermediate molded product is taken out from the blow molding die 41, the interval between the lip mold fixing plates 111 is adjusted in synchronization with the opening of the blow molding die 41. Similarly, when the hollow container is taken out from the blow molding die 51, the interval between the lip mold fixing plates 111 is adjusted in synchronization with the opening of the blow molding die 51. Since the blow molding dies 41 and 51 have the same configuration except that the shape of the blow cavity is slightly different, the blow molding dies 51 included in the second blow molding station 50 will be described here.
具体的には、図9に示すように、第2のブロー成形ステーション50に備えられているブロー成形用金型51は、複数組(本実施形態では4組)のブロー金型52を備えている。各ブロー金型52は、複数のキャビティを一列に備えるブローキャビティ型54と、各キャビティの底部を塞ぎ中空容器の底面を形成する底型55と、を備えている。またブローキャビティ型54は、具体的には、パーティング面同士を当接させて型締めされる一対の割型で構成されている。なお隣接するブロー金型52の割型同士は、背面合わせの状態で固定されている。
Specifically, as shown in FIG. 9, the blow molding die 51 provided in the second blow molding station 50 includes a plurality of sets (four sets in this embodiment) of blow molds 52. There is. Each blow mold 52 includes a blow cavity mold 54 having a plurality of cavities in a row, and a bottom mold 55 that closes the bottom of each cavity to form the bottom surface of the hollow container. Further, the blow cavity mold 54 is specifically composed of a pair of split molds which are clamped by bringing the parting surfaces into contact with each other. The split molds of the blow molds 52 adjacent to each other are fixed in a state of being back-to-back.
また図示は省略するが、ブロー成形用金型51は、キャビティ内に配された中間成形品に挿入されて内部にエアーを導入するためのブローコア型をブロー金型52の上方に備えている。
Also, although not shown, the blow molding die 51 is provided with a blow core die above the blow die 52, which is inserted into an intermediate molded product arranged in the cavity and introduces air into the inside.
そして複数のブロー金型52を構成するブローキャビティ型54と、底型55とが、リップ型ユニット110と同様に、連結ピン56及び長孔57を備えた連結部材58によってそれぞれ連結されている。本実施形態では、ブロー金型52の上端付近及び下端付近のそれぞれに、連結ピン56及び連結部材58が設けられている。これにより、複数組のブロー金型52を構成する各ブローキャビティ型54及び底型55は、全てが連動して開閉するようになっている。
Like the lip mold unit 110, the blow cavity mold 54 that constitutes the plurality of blow molds 52 and the bottom mold 55 are connected by a connecting member 58 having a connecting pin 56 and an elongated hole 57. In this embodiment, the connecting pin 56 and the connecting member 58 are provided near the upper end and the lower end of the blow mold 52, respectively. As a result, all of the blow cavity molds 54 and the bottom mold 55 forming the plurality of sets of blow molds 52 are adapted to be opened and closed in conjunction with each other.
そしてリップ型ユニット110は、図10に示すように、このような構成のブロー成形用金型51に連結され、ブロー成形用金型51の型開きに合わせてリップ型固定プレート111の間隔が調整されるようになっている。
Then, as shown in FIG. 10, the lip mold unit 110 is connected to the blow molding mold 51 having such a configuration, and the interval between the lip mold fixing plates 111 is adjusted according to the mold opening of the blow molding mold 51. It is supposed to be done.
本実施形態では、各ブロー金型52を構成する底型55には、接続ピン59がそれぞれ立設される一方、プレート保持部材112を構成する各分割部材116(116a~116f)には、これらの各接続ピン59が挿入される挿入孔185が形成されている(図10(b)及び図3参照)。接続ピン59、挿入孔185等により、第2のピッチ変換機構(ピッチ拡張機構)が構成される。
In the present embodiment, the bottom die 55 that constitutes each blow die 52 is provided with the connection pins 59, while the split members 116 (116a to 116f) that constitute the plate holding member 112 are provided with these pins. An insertion hole 185 into which each connection pin 59 is inserted is formed (see FIG. 10B and FIG. 3 ). A second pitch conversion mechanism (pitch expansion mechanism) is configured by the connection pin 59, the insertion hole 185, and the like.
第2のブロー成形ステーション50にて中空容器を成形する際には、リップ型ユニット110をブロー成形用金型51に当接するまで下降させると、各接続ピン59が各分割部材116の各挿入孔185に挿入されて、各分割部材116が各底型55とそれぞれ一体化される(図10(a)参照)。
When molding the hollow container at the second blow molding station 50, the lip mold unit 110 is lowered until it abuts on the blow molding mold 51, and each connection pin 59 is inserted into each insertion hole of each split member 116. It is inserted in 185, and each dividing member 116 is integrated with each bottom die 55 (see FIG. 10A).
そして、中空容器をブロー成形用金型51から取り出す際には、ブロー成形用金型51が型開きされると、それに同期してリップ型固定プレート111の間隔も適切に調整されることになる(図10(b)参照)。
Then, when the hollow container is taken out from the blow molding die 51, when the blow molding die 51 is opened, the interval between the lip mold fixing plates 111 is also adjusted appropriately in synchronization with it. (See FIG. 10(b)).
なお第2のブロー成形ステーション50では、中空容器を成形すると、ブロー成形用金型51を型開きした後、リップ型ユニット110を上昇させてブロー成形用金型51から分離する。これにより、中空容器がブロー成形用金型51から取り出される。その後、上述した第1のピッチ変換機構160によってリップ型ユニット110(プレート保持部材112)を押圧してリップ型固定プレート111の間隔を元の状態(狭い状態)に戻してから、検査ステーション60に搬送する。
In the second blow molding station 50, when the hollow container is molded, the blow molding die 51 is opened, and then the lip mold unit 110 is lifted and separated from the blow molding die 51. As a result, the hollow container is taken out of the blow molding die 51. After that, the first pitch converting mechanism 160 described above presses the lip type unit 110 (plate holding member 112) to return the gap between the lip type fixing plates 111 to the original state (narrow state), and then to the inspection station 60. Transport.
以上説明したように、本実施形態に係る射出ブロー成形装置10によれば、複数のリップ型23を保持するリップ型ユニット110を、射出成形ステーション20、温調ステーション30、第1のブロー成形ステーション40、第2のブロー成形ステーション50、検査ステーション60及び取出しステーション70のそれぞれに適切に搬送することができる。したがって、生産性及び汎用性の向上した射出ブロー成形装置を実現することができる。
As described above, according to the injection blow molding apparatus 10 according to the present embodiment, the lip mold unit 110 that holds the plurality of lip molds 23 is provided in the injection molding station 20, the temperature control station 30, and the first blow molding station. 40, the second blow molding station 50, the inspection station 60 and the unloading station 70, respectively. Therefore, it is possible to realize an injection blow molding apparatus with improved productivity and versatility.
さらに、本実施形態に係る射出ブロー成形装置10は、射出成形ステーション20と、ブロー成形ステーション40と、取出しステーション70とを少なくとも有する複数のステーション間で、上部基盤120の下面に設けられた略矩形状の搬送路122に対し、複数のリップ型23を保持する複数列のリップ型固定プレート111を有するリップ型ユニット110をスライド移動可能かつ脱着可能とする搬送装置100を備える。この構成により、上部基盤120が同面積の回転盤と比較して、リップ型ユニット110のサイズやリップ型23の数を大きくすることができ、生産性が向上できる。
Further, the injection blow molding apparatus 10 according to the present embodiment has a substantially rectangular shape provided on the lower surface of the upper base 120 between a plurality of stations including at least the injection molding station 20, the blow molding station 40, and the take-out station 70. A conveyance device 100 is provided that allows a lip type unit 110 having a plurality of rows of lip type fixing plates 111 holding a plurality of lip types 23 to be slidably movable and detachable with respect to a shaped conveyance path 122. With this configuration, the size of the lip mold unit 110 and the number of lip molds 23 can be increased, and the productivity can be improved, as compared with a rotary disk having the same area of the upper base 120.
なお上部基盤120は、各ステーションに対応して個別に設けられた基盤を連結したものであってもよいし、複数のステーションに対応して一体的に設けられた基盤であってもよい。ただし、上部基盤120は、少なくとも射出成形ステーション20に対応する部分が、他のステーション30~70に対応する部分とは分離可能となっていることが好ましい。
Note that the upper base 120 may be a combination of bases individually provided for each station, or may be a base integrally provided for a plurality of stations. However, it is preferable that at least the portion corresponding to the injection molding station 20 of the upper substrate 120 is separable from the portions corresponding to the other stations 30 to 70.
本実施形態では、上部基盤120は、射出成形ステーション20に対応する部分が他のステーション30~70に対応する部分とは分離可能となっており、さらに温調ステーション30、第1のブロー成形ステーション40及び第2のブロー成形ステーション50に対向する部分と、検査ステーション60及び取出しステーション70に対向する部分とが分離可能となっている。
In the present embodiment, the upper base 120 is such that the portion corresponding to the injection molding station 20 can be separated from the portions corresponding to the other stations 30 to 70, and the temperature control station 30 and the first blow molding station are further provided. 40 and the portion facing the second blow molding station 50 and the portion facing the inspection station 60 and the take-out station 70 are separable.
射出成形ステーション20は、いわゆる縦締め型の射出成形装置を備えており、その高さが比較的高い。このため、上部基盤120の射出成形ステーション20に対応する部分を他のステーション30~70に対応する部分とは分離可能としておくことが好ましい。これにより、射出成形ステーション(射出成形装置)20を、他のステーションと分離して搬送することができる。したがって、射出ブロー成形装置10の搬送し易さが向上する。
The injection molding station 20 is equipped with a so-called vertical tightening type injection molding device, and its height is relatively high. Therefore, it is preferable that the portion of the upper base 120 corresponding to the injection molding station 20 be separable from the portions corresponding to the other stations 30 to 70. As a result, the injection molding station (injection molding apparatus) 20 can be transported separately from other stations. Therefore, the ease of carrying the injection blow molding apparatus 10 is improved.
以上、本発明の一実施形態について説明したが、本発明は、上述の実施形態に限定されるものではない。本発明は、その趣旨を逸脱しない範囲で適宜変更が可能なものである。
The embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. The present invention can be appropriately modified without departing from the spirit thereof.
例えば、上述の実施形態では、ブロー成形用金型として、4組のブロー成形用金型を備えた構成を例示しており、それに伴い、リップ型ユニットは4枚(4列)のリップ型固定プレートを備えているが、リップ型ユニットが備えるリップ型固定プレートの数は特に限定されるものではなく、2枚(2列)、3枚(3列)等であってもよい。
For example, in the above-described embodiment, a configuration including four sets of blow molding dies is illustrated as the blow molding dies, and accordingly, the lip mold unit is fixed to four (four rows) lip molds. Although the plates are provided, the number of the lip type fixing plates provided in the lip type unit is not particularly limited, and may be two (two rows), three (three rows), or the like.
また例えば、上述の実施形態では、搬送装置が、6つのステーションに対して6つのリップ型ユニットを備えた構成を例示したが、搬送装置が備えるリップ型ユニットの台数は特に限定されるものではない。搬送装置は、例えば、6つのステーションに対して4つのリップ型ユニットを備えていてもよい。
Further, for example, in the above-described embodiment, the transport device is illustrated as having six lip-type units for six stations, but the number of lip-type units included in the transport device is not particularly limited. .. The carrier may, for example, be equipped with four lip-type units for six stations.
また上述の実施形態では、射出ブロー成形装置が、射出成形、温調、2度のブロー成形、検査、取出しの各工程を実施する6つのステーションを備える構成を例示したが、各ステーションで実施する工程内容は特に限定されるものではない。例えば、ブロー成形の工程は、1度であってもよい。この場合、ブロー成形ステーションの構成は、第2のピッチ変換機構を備える、第2のブロー成形ステーション50と同様の構成であってもよい。また、第1のピッチ変換機構は、ブロー成形ステーションに代わりに、取出しステーションに配置されていても構わない。
Further, in the above-described embodiment, the injection blow molding apparatus is illustrated as having a configuration including six stations for performing the steps of injection molding, temperature control, two-time blow molding, inspection, and take-out. The process content is not particularly limited. For example, the blow molding process may be performed once. In this case, the configuration of the blow molding station may be the same as that of the second blow molding station 50 including the second pitch conversion mechanism. Further, the first pitch conversion mechanism may be arranged in the take-out station instead of the blow molding station.
また上述の実施形態では、6つのステーションを備える射出ブロー成形装置について説明したが、勿論、ステーションの数は特に限定されず、例えば、4つのステーションまたは5つのステーションを備える射出ブロー成形装置にも本発明を適用することができる。6つのステーションを備える射出ブロー成形装置では機台上に3ステーションずつ2列に各ステーションが配置された態様を説明したが、4つのステーションを備える射出ブロー成形装置では機台上に2ステーションずつ2列に各ステーションが配置される態様としてもよい。また、5つのステーションを備える射出ブロー成形装置では機台上に3ステーションずつ2列に各ステーションが配置される態様としつつ、1つの余りのステーション(空間)を何も保持していないリップ型ユニットが待機される場所としてもよい(後述の図15参照)。
Further, in the above-described embodiment, the injection blow molding apparatus including six stations has been described, but the number of stations is not particularly limited, and, for example, an injection blow molding apparatus including four stations or five stations can also be used. The invention can be applied. In the injection blow molding apparatus having 6 stations, each station is arranged in 2 rows of 3 stations on the machine base. However, in the injection blow molding apparatus having 4 stations, 2 stations are arranged on each machine base. The stations may be arranged in rows. In addition, in an injection blow molding apparatus having five stations, each station is arranged in two rows of three stations on the machine base, while a lip type unit that does not hold any one extra station (space). May be a place to wait (see FIG. 15 described later).
図11は、上述の実施形態とは別の実施形態(第2の実施形態)に係る射出ブロー成形装置1010を示すブロック図である。図12は、射出ブロー成形装置1010における搬送装置1100の概略構成を示す斜視図である。図13は、搬送装置1100の概略構成を示す平面図である。射出ブロー成形装置1010は、射出成形ステーション20と、温調ステーション30と、ブロー成形ステーション1040と、取出しステーション70と、の4つのステーションを備える。ブロー成形ステーション1040は、プリフォームから中空容器を形成する点で第1の実施形態における第1のブロー成形ステーション40および第2のブロー成形ステーション50と異なるが、ブロー成形用金型1041は、ブローキャビティの形状が若干異なる以外は上述の第2のブロー成形ステーション50と同様の構成であるため、詳細な説明は省略する。射出成形ステーション20、温調ステーション30、取出しステーション70等、第1の実施形態と同じ符号を付した部材については第1の実施形態と同様の態様であるため、詳細な説明は省略する。
FIG. 11 is a block diagram showing an injection blow molding apparatus 1010 according to another embodiment (second embodiment) different from the above embodiment. FIG. 12 is a perspective view showing a schematic configuration of a carrying device 1100 in the injection blow molding device 1010. FIG. 13 is a plan view showing a schematic configuration of the transfer device 1100. The injection blow molding apparatus 1010 includes four stations: an injection molding station 20, a temperature control station 30, a blow molding station 1040, and a take-out station 70. The blow molding station 1040 differs from the first blow molding station 40 and the second blow molding station 50 in the first embodiment in that a hollow container is formed from a preform, but the blow molding die 1041 is The second blow molding station 50 has the same structure as the second blow molding station 50 except that the shape of the cavity is slightly different, and thus detailed description thereof will be omitted. Members having the same reference numerals as those in the first embodiment, such as the injection molding station 20, the temperature control station 30, and the take-out station 70, are the same as those in the first embodiment, and thus detailed description thereof will be omitted.
射出ブロー成形装置1010では機台11上に2ステーションずつ2列に各ステーションが配置されている。図11に示す、4つのステーションを備える射出ブロー成形装置1010において、リップ型ユニット110の数は4つである。なお、図12および図13に示すリップ型ユニット110では、1列あたりの固定孔の個数等が第1の実施形態と異なっているが、基本的構成として第1の実施形態において説明した態様のリップ型ユニット110を適用することが可能であるため、同じ符号を付して詳細な説明は省略する。
In the injection blow molding apparatus 1010, each station is arranged in two rows on the machine base 11 in two rows. In the injection blow molding apparatus 1010 including four stations shown in FIG. 11, the number of lip mold units 110 is four. Note that the lip type unit 110 shown in FIGS. 12 and 13 is different from the first embodiment in the number of fixing holes and the like in one row, but the basic configuration is similar to that of the first embodiment. Since the lip type unit 110 can be applied, the same reference numerals are given and detailed description will be omitted.
図12および図13に示す搬送装置1100は、4つの貫通孔124a,124b,124d,124eを備える上部基盤1120を備えている。4つの貫通孔124a,124b,124d,124eはそれぞれ、射出成形ステーション20、温調ステーション30、ブロー成形ステーション1040、および取出しステーション70に対応する位置に設けられている。搬送装置1100の、脚部121、ガイド部材125、移動装置126、第1のピッチ変換機構160、スライド移動装置170等は、基本的構成として第1の実施形態において説明した態様と同様のものを適用することが可能であるため、同じ符号を付して詳細な説明は省略する。また、搬送路122はステーション数が少なくないことに伴い第1の実施形態よりも短いが、スライド移動装置170によってリップ型ユニット110が搬送される経路である点で第1の実施形態と同様であるため、同じ符号を付して詳細な説明は省略する。このように、4つのステーションを備える射出ブロー成形装置1010においても、本開示における搬送装置1100を適用することができる。なお、搬送装置1100は、射出成形ステーション20およびブロー成形ステーション1040に対応して設けられ、リップ型ユニット110を保持した状態で昇降可能な可動板を備えていても良い。
The carrier device 1100 shown in FIGS. 12 and 13 includes an upper base 1120 having four through holes 124a, 124b, 124d, and 124e. The four through holes 124a, 124b, 124d, and 124e are provided at positions corresponding to the injection molding station 20, the temperature control station 30, the blow molding station 1040, and the take-out station 70, respectively. The leg portion 121, the guide member 125, the moving device 126, the first pitch conversion mechanism 160, the slide moving device 170, and the like of the transport device 1100 have the same basic configuration as that described in the first embodiment. Since they can be applied, the same reference numerals are given and detailed description will be omitted. Further, the transport path 122 is shorter than that in the first embodiment because the number of stations is not small, but is similar to the first embodiment in that it is a path through which the slide moving device 170 transports the lip type unit 110. Therefore, the same reference numerals are given and detailed description will be omitted. As described above, the transport apparatus 1100 according to the present disclosure can be applied to the injection blow molding apparatus 1010 including the four stations. The transport device 1100 may be provided corresponding to the injection molding station 20 and the blow molding station 1040, and may include a movable plate that can be moved up and down while holding the lip mold unit 110.
図14は、さらに別の実施形態(第3の実施形態)に係る射出ブロー成形装置2010を示すブロック図である。射出ブロー成形装置2010は、第1の射出成形ステーション2020と、第1の温調ステーション2030と、第2の射出成形ステーション2024と、第2の温調ステーション2032と、ブロー成形ステーション2040と、取出しステーション70と、の6つのステーションを備える。ブロー成形ステーション2040およびそれが備えるブロー成形用金型2041は、それぞれ図11におけるブロー成形ステーション1040およびブロー成形用金型1041と同様の態様である。取出しステーション70、リップ型ユニット110等、同じ符号を付した部材については第1の実施形態と同様の態様であるため、詳細な説明は省略する。射出ブロー成形装置2010では、機台11上に3ステーションずつ2列に各ステーションが配置されている。射出ブロー成形装置1010は、第1の射出成形ステーション2020と、第2の射出成形ステーション2024と、の2つの射出成形ステーションを備えることにより、2層構造のプリフォームを成形可能に構成されている。図14に示す、6つのステーションを備える射出ブロー成形装置2010においても、本開示における搬送装置2100を適用することができる。なお、搬送装置2100は第1の実施形態における搬送装置100を射出ブロー成形装置2010の各ステーションに応じて適宜変更することにより構成することが可能であるため、詳細な説明は省略する。
FIG. 14 is a block diagram showing an injection blow molding device 2010 according to yet another embodiment (third embodiment). The injection blow molding apparatus 2010 includes a first injection molding station 2020, a first temperature control station 2030, a second injection molding station 2024, a second temperature control station 2032, a blow molding station 2040, and a take-out operation. The station 70 includes six stations. The blow molding station 2040 and the blow molding die 2041 provided therein are similar to the blow molding station 1040 and the blow molding die 1041 in FIG. 11, respectively. Members having the same reference numerals, such as the take-out station 70 and the lip type unit 110, are the same as those in the first embodiment, and thus detailed description thereof will be omitted. In the injection blow molding apparatus 2010, each station is arranged on the machine base 11 in two rows of three stations. The injection blow molding apparatus 1010 is provided with two injection molding stations, a first injection molding station 2020 and a second injection molding station 2024, and is configured to mold a preform having a two-layer structure. .. The transport apparatus 2100 according to the present disclosure can also be applied to the injection blow molding apparatus 2010 including six stations shown in FIG. 14. Note that the carrier device 2100 can be configured by appropriately modifying the carrier device 100 in the first embodiment according to each station of the injection blow molding device 2010, and thus detailed description thereof will be omitted.
射出ブロー成形装置2010は、例えば、以下の手順により2層構造のプリフォームを成形できる。まず、第1の射出成形ステーション2020において第1の射出装置2021から第1の射出成形型2022に樹脂材料を射出することでプリフォームの外層部分を成形する。続いて、搬送装置2100によって第1の温調ステーション2030へ当該外層部分を搬送する。第1の温調ステーション2030において、当該外層部分を第1の温調金型2031内で所定温度となるように温度調整する。続いて、搬送装置2100によって第2の射出成形ステーション2024へ当該外層部分を搬送する。第2の射出成形ステーション2024において、第2の射出装置2025から第2の射出成形型2026に樹脂材料を射出することでプリフォームの外層部分の内側に内層部分を成形する。続いて、搬送装置2100によって第2の温調ステーション2032へ内層部分及び外層部分から構成されるプリフォームを搬送する。第2の温調ステーション2032において、当該プリフォームを第2の温調金型2033内で所定温度となるように温度調整する。
The injection blow molding device 2010 can mold a preform having a two-layer structure by the following procedure, for example. First, in the first injection molding station 2020, the outer layer portion of the preform is molded by injecting the resin material from the first injection device 2021 into the first injection molding die 2022. Then, the outer layer portion is transported to the first temperature control station 2030 by the transport device 2100. In the first temperature adjustment station 2030, the temperature of the outer layer portion is adjusted in the first temperature adjustment mold 2031 so as to reach a predetermined temperature. Then, the outer layer portion is transported to the second injection molding station 2024 by the transport device 2100. In the second injection molding station 2024, the resin material is injected from the second injection device 2025 into the second injection mold 2026 to mold the inner layer portion inside the outer layer portion of the preform. Subsequently, the transport device 2100 transports the preform including the inner layer portion and the outer layer portion to the second temperature control station 2032. In the second temperature control station 2032, the temperature of the preform is adjusted in the second temperature control mold 2033 so as to reach a predetermined temperature.
なお、射出ブロー成形装置2010における2層構造のプリフォームの成形方法は、上述した例に限られず、第1の射出成形ステーション2020において内層部分を成形して、第2の射出成形ステーション2024において外装部分を成形する態様としても良い。また、2層構造のプリフォームを成形する場合、第1の射出成形ステーション2020および第2の射出成形ステーション2024の間に第1の温調ステーション2030を設けることが好ましい。ここで、第1の射出成形ステーション2020において成形される第1のプリフォーム部分を十分に冷却して固化させることで、第2の射出成形ステーション2024において第2のプリフォーム部分を成形する際の第1のプリフォーム部分の変形を抑制できる。第1のプリフォーム部分の変形を抑制することで、内外層の肉厚分布が整った二層(積層)プリフォームを成形することができる。その一方で、第1のプリフォーム部分を十分冷却させると、第2のプリフォーム部分との固着性(くっつき具合:溶着性・密着性・付着性)が悪くなるおそれがある(例:第1のプリフォーム材-PET、第2のプリフォーム材-PET、PP、EVOH)。第1の射出成形ステーション2020および第2の射出成形ステーション2024の間に第1の温調ステーション2030を設けることで、冷却された第1のプリフォーム部分の表面を加熱して固着性を改善させることができ、第1のプリフォーム部分と第2のプリフォーム部分との良好な固着を実現できる。
The method of molding the two-layer structure preform in the injection blow molding apparatus 2010 is not limited to the above-described example, but the inner layer portion is molded in the first injection molding station 2020 and the exterior is molded in the second injection molding station 2024. A mode in which the part is molded may be adopted. When molding a two-layer structure preform, it is preferable to provide a first temperature control station 2030 between the first injection molding station 2020 and the second injection molding station 2024. Here, when the second preform portion is molded in the second injection molding station 2024 by sufficiently cooling and solidifying the first preform portion molded in the first injection molding station 2020. The deformation of the first preform portion can be suppressed. By suppressing the deformation of the first preform portion, it is possible to form a two-layer (laminate) preform having a uniform thickness distribution of the inner and outer layers. On the other hand, if the first preform portion is sufficiently cooled, the sticking property (sticking condition: weldability, adhesiveness, adhesiveness) to the second preform part may be deteriorated (eg, the first: Preform material-PET, second preform material-PET, PP, EVOH). By providing the first temperature control station 2030 between the first injection molding station 2020 and the second injection molding station 2024, the surface of the cooled first preform portion is heated to improve the adhesiveness. It is possible to achieve good adhesion between the first preform portion and the second preform portion.
図15は、さらに別の実施形態(第4の実施形態)に係る射出ブロー成形装置3010を示すブロック図である。射出ブロー成形装置3010は、第1の射出成形ステーション3020と、第2の射出成形ステーション3024と、温調ステーション30と、ブロー成形ステーション3040と、取出しステーション70と、の5つのステーションを備える。ブロー成形ステーション3040およびそれが備えるブロー成形用金型3041は、それぞれ図11におけるブロー成形ステーション1040およびブロー成形用金型1041と同様の態様である。第1の射出成形ステーション3020及び第2の射出成形ステーション3024は、射出ブロー成形装置3010内での配置が異なる点を除き、図14における第1の射出成形ステーション2020及び第2の射出成形ステーション2024と同様の態様である。温調ステーション30、取出しステーション70、リップ型ユニット110等、同じ符号を付した部材については第1の実施形態と同様の態様であるため、詳細な説明は省略する。射出ブロー成形装置3010では、機台11上に3ステーションずつ2列に各ステーションが配置されている。ただし、取出しステーション70及び第1の射出成形ステーション3020の間のステーションは何も保持していないリップ型ユニット110が待機される場所である。射出ブロー成形装置3010は2つの射出成形ステーションを備えることにより、2層構造のプリフォームを成形可能に構成されている。図15に示す、5つのステーションを備える射出ブロー成形装置3010においても、本開示における搬送装置3100を適用することができる。なお、搬送装置3100は第1の実施形態における搬送装置100を射出ブロー成形装置3010の各ステーションに応じて適宜変更することにより構成することが可能であるため、詳細な説明は省略する。
FIG. 15 is a block diagram showing an injection blow molding device 3010 according to still another embodiment (fourth embodiment). The injection blow molding device 3010 includes five stations: a first injection molding station 3020, a second injection molding station 3024, a temperature control station 30, a blow molding station 3040, and a take-out station 70. The blow molding station 3040 and the blow molding die 3041 provided therein are similar to the blow molding station 1040 and the blow molding die 1041 in FIG. 11, respectively. The first injection molding station 3020 and the second injection molding station 3024 are different in arrangement in the injection blow molding apparatus 3010, but the first injection molding station 2020 and the second injection molding station 2024 in FIG. It is a mode similar to. Members having the same reference numerals, such as the temperature control station 30, the take-out station 70, and the lip type unit 110, are the same as those in the first embodiment, and detailed description thereof will be omitted. In the injection blow molding device 3010, each station is arranged in two rows of three stations on the machine base 11. However, the station between the take-out station 70 and the first injection molding station 3020 is a place where the lip type unit 110 holding nothing is waiting. The injection blow molding apparatus 3010 is provided with two injection molding stations and is configured to mold a preform having a two-layer structure. The transport device 3100 according to the present disclosure can also be applied to the injection blow molding device 3010 including the five stations illustrated in FIG. 15. The carrier device 3100 can be configured by appropriately modifying the carrier device 100 in the first embodiment according to each station of the injection blow molding device 3010, and thus detailed description thereof will be omitted.
なお、本願は、2019年2月13日付で出願された日本国特許出願(特願2019-23903)に基づいており、その全体が引用により援用される。また、ここに引用されるすべての参照は全体として取り込まれる。
The present application is based on the Japanese patent application (Japanese Patent Application No. 2019-23903) filed on February 13, 2019, which is incorporated by reference in its entirety. Also, all references cited herein are incorporated in their entirety.
10,1010,2010,3010 射出ブロー成形装置、11 機台、20 射出成形ステーション、21 射出装置、22 射出成形型、23 リップ型、30 温調ステーション、31 温調金型、40 第1のブロー成形ステーション、41 ブロー成形用金型(第1のブロー成形型)、50 第2のブロー成形ステーション、51 ブロー成形用金型(第2のブロー成形型)、52 ブロー金型、54 ブローキャビティ型、55 底型、56 連結ピン、57 長孔、58 連結部材、59 接続ピン、60 検査ステーション、70 取出しステーション、71 エジェクトカム、100,1100,2100,3100 搬送装置、110 リップ型ユニット、111 リップ型固定プレート、112 プレート保持部材、113 固定孔、114 分割プレート、115 楔状孔、116 分割部材、117 連結ピン、118 長孔、119 連結部材、120,1120 上部基盤、121 脚部、122 搬送路、123 スライド支持部材、124 貫通孔、125 ガイド部材、126 移動装置、130 可動板、131 露出口、132 本体部、133 延設部、140 昇降装置、145 ロッド部材、160 第1のピッチ変換機構、170 スライド移動装置(スライド移動手段)、171 レール部材、172 スライド部材、173 動力源、174 チャック部材、175 係合突起部、180 係合凹部、185 挿入孔、200 駆動機構部、1040,2040,3040 ブロー成形ステーション、1041,2041,3041 ブロー成形用金型、2020,3020 第1の射出成形ステーション、2021,3021 第1の射出装置、2022,3022 第1の射出成形型、2024,3024 第2の射出成形ステーション、2025,3025 第2の射出装置、2026,3026 第2の射出成形型、2030 第1の温調ステーション、2031 第1の温調金型、2032 第2の温調ステーション、2033 第2の温調金型
10, 1010, 2010, 3010 injection blow molding device, 11 machine base, 20 injection molding station, 21 injection device, 22 injection molding mold, 23 lip mold, 30 temperature control station, 31 temperature control mold, 40 first blow Molding station, 41 blow molding mold (first blow molding mold), 50 second blow molding station, 51 blow molding mold (second blow molding mold), 52 blow mold, 54 blow cavity mold , 55 bottom type, 56 connecting pin, 57 elongated hole, 58 connecting member, 59 connecting pin, 60 inspection station, 70 ejecting station, 71 eject cam, 100, 1100, 2100, 3100 transfer device, 110 lip type unit, 111 lip Mold fixing plate, 112 plate holding member, 113 fixing hole, 114 dividing plate, 115 wedge-shaped hole, 116 dividing member, 117 connecting pin, 118 long hole, 119 connecting member, 120, 1120 upper base, 121 leg section, 122 conveying path , 123 slide support member, 124 through hole, 125 guide member, 126 moving device, 130 movable plate, 131 exposure port, 132 main body part, 133 extension part, 140 lifting device, 145 rod member, 160 first pitch conversion mechanism , 170 slide moving device (slide moving means), 171 rail member, 172 slide member, 173 power source, 174 chuck member, 175 engaging protrusion, 180 engaging recess, 185 insertion hole, 200 drive mechanism part, 1040, 2040 , 3040 blow molding station, 1041, 2041, 3041 blow molding die, 2020, 3020 first injection molding station, 2021, 3021 first injection device, 2022, 3022 first injection molding mold, 2024, 3024 2, injection molding station, 2025, 3025, second injection device, 2026, 3026, second injection mold, 2030, first temperature control station, 2031, first temperature control mold, 2032, second temperature control station, 2033 2nd temperature control mold
Claims (9)
- 射出成形ステーションと、ブロー成形ステーションと、取出しステーションと、を少なくとも含む複数ステーションを備えると共に、複数の各ステーションに樹脂成形品を循環搬送する搬送装置を備える射出ブロー成形装置であって、
前記搬送装置は、
複数のリップ型が一列に固定される複数枚のリップ型固定プレートと、前記複数枚のリップ型固定プレートが並ぶ方向を列方向とした時に前記列方向に並設された前記リップ型固定プレートを間隔調整可能に保持するプレート保持部材と、を有するリップ型ユニットと、
前記リップ型ユニットの縁部をスライド移動可能に支持して当該リップ型ユニットを各ステーションに循環搬送するための搬送路が下面に設けられた上部基盤と、
前記リップ型ユニットを前記搬送路に沿って直線的にスライド移動させるスライド移動手段と、を備えている、射出ブロー成形装置。 An injection blow molding apparatus comprising a plurality of stations including at least an injection molding station, a blow molding station, and a take-out station, and a conveyor device for circulating and conveying a resin molded product to each of the plurality of stations,
The carrier is
A plurality of lip type fixing plates to which a plurality of lip types are fixed in a row; and a plurality of lip type fixing plates arranged side by side in the row direction when the direction in which the plurality of lip type fixing plates are arranged is the row direction. A lip-type unit having a plate holding member that holds the space adjustable
An upper substrate having a lower surface on which a transport path for slidably supporting the edge of the lip type unit and for circulating and transporting the lip type unit to each station is provided,
An injection blow molding apparatus, comprising: a slide moving unit that linearly slides the lip type unit along the transport path. - 請求項1に記載の射出ブロー成形装置であって、
前記搬送装置は、
各ステーションに対応して設けられ、前記搬送路を横切る前記リップ型ユニットの各辺の縁部を支持するガイド部材と、
前記リップ型ユニットを支持する第1の位置と前記リップ型ユニットとは干渉しない第2の位置との間で前記ガイド部材を移動させる移動手段と、を備えている、射出ブロー成形装置。 The injection blow molding apparatus according to claim 1, wherein
The carrier is
A guide member that is provided corresponding to each station and that supports an edge portion of each side of the lip type unit that crosses the transport path,
An injection blow molding apparatus, comprising: a moving unit that moves the guide member between a first position that supports the lip mold unit and a second position that does not interfere with the lip mold unit. - 請求項1に記載の射出ブロー成形装置であって、
前記搬送装置は、
前記射出成形ステーション及び前記ブロー成形ステーションに対応して設けられ、前記リップ型ユニットを保持した状態で昇降可能な可動板を備えている、射出ブロー成形装置。 The injection blow molding apparatus according to claim 1, wherein
The carrier is
An injection blow molding apparatus provided with a movable plate that is provided corresponding to the injection molding station and the blow molding station and that can move up and down while holding the lip mold unit. - 請求項1に記載の射出ブロー成形装置であって、
前記搬送装置は、
前記射出成形ステーション及び前記ブロー成形ステーションに対応して設けられ、前記リップ型ユニットを保持した状態で昇降可能な可動板を備えていると共に、
各ステーションに対応して設けられ、前記搬送路を横切る前記リップ型ユニットの各辺の縁部を支持するガイド部材と、
前記リップ型ユニットを支持する第1の位置と前記リップ型ユニットとは干渉しない第2の位置との間で前記ガイド部材を移動させる移動手段と、を備え、
前記ガイド部材及び前記移動手段が前記可動板に設けられている、
射出ブロー成形装置。 The injection blow molding apparatus according to claim 1, wherein
The carrier is
Provided corresponding to the injection molding station and the blow molding station, provided with a movable plate that can be raised and lowered while holding the lip mold unit,
A guide member that is provided corresponding to each station and that supports an edge portion of each side of the lip type unit that crosses the transport path,
A moving unit that moves the guide member between a first position that supports the lip type unit and a second position that does not interfere with the lip type unit,
The guide member and the moving means are provided on the movable plate,
Injection blow molding equipment. - 請求項4に記載の射出ブロー成形装置であって、
前記ブロー成形ステーションに対応する前記可動板に設けられた前記ガイド部材は、前記リップ型固定プレートの間隔の拡張に伴い前記リップ型固定プレートと共に移動可能に構成されている、射出ブロー成形装置。 The injection blow molding device according to claim 4, wherein
The injection blow molding apparatus, wherein the guide member provided on the movable plate corresponding to the blow molding station is configured to be movable together with the lip mold fixing plate as the gap between the lip mold fixing plates is expanded. - 請求項5に記載の射出ブロー成形装置であって、
前記ブロー成形ステーションに対応する前記可動板は、前記リップ型固定プレートの間隔を拡張した状態でも昇降可能に構成されている、射出ブロー成形装置。 The injection blow molding apparatus according to claim 5, wherein
The injection blow molding apparatus, wherein the movable plate corresponding to the blow molding station is configured to be able to move up and down even when the interval between the lip type fixed plates is expanded. - 請求項1に記載の射出ブロー成形装置であって、
前記プレート保持部材は、前記リップ型固定プレートがそれぞれ固定される複数個の分割部材と、これら複数個の前記分割部材をそれぞれ接離可能に連結する連結部材と、を備えている、射出ブロー成形装置。 The injection blow molding apparatus according to claim 1, wherein
The plate holding member includes a plurality of dividing members to which the lip-type fixing plate is fixed, and a connecting member that connects the plurality of dividing members to each other so that they can be separated from each other. apparatus. - 請求項7に記載の射出ブロー成形装置であって、
前記ブロー成形ステーションは、複数組のブロー金型を備え、
前記分割部材は、前記ブロー金型を構成する底型にそれぞれ連結される、
射出ブロー成形装置。 The injection blow molding device according to claim 7, wherein
The blow molding station comprises a plurality of sets of blow molds,
The dividing members are respectively connected to bottom molds that constitute the blow mold,
Injection blow molding equipment. - 請求項1に記載の射出ブロー成形装置であって、
前記スライド移動手段は、
各ステーション間に直線的に設けられるレール部材と、
該レール部材上をスライド移動可能に設けられると共に前記プレート保持部材に係合するチャック部材と、
前記チャック部材を前記レール部材に沿ってスライド移動させる動力源と、
を備えている、射出ブロー成形装置。 The injection blow molding apparatus according to claim 1, wherein
The slide moving means,
A rail member provided linearly between each station,
A chuck member slidably provided on the rail member and engaging with the plate holding member,
A power source for sliding the chuck member along the rail member;
An injection blow molding machine equipped with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2020544060A JP6799725B1 (en) | 2019-02-13 | 2020-02-13 | Injection blow molding equipment |
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Citations (7)
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JPS57128519A (en) * | 1981-02-03 | 1982-08-10 | Katashi Aoki | Injection blow molding machine |
JPS57159624A (en) * | 1981-03-27 | 1982-10-01 | Toshiba Mach Co Ltd | Injection stretching blow molding method |
JPH03159726A (en) * | 1989-11-17 | 1991-07-09 | Nissei Ee S B Kikai Kk | Molding method by injection, orientation and blowing |
JPH0679773A (en) * | 1992-08-31 | 1994-03-22 | Nissei Asb Mach Co Ltd | Injection stretch blow molding method and apparatus |
JPH06134845A (en) * | 1992-10-28 | 1994-05-17 | Nissei Asb Mach Co Ltd | Injection stretching blow molding machine |
US20130328249A1 (en) * | 2011-01-07 | 2013-12-12 | Mould & Matic Solutions Gmbh | Installation and method for producing hollow bodies by injection moulding and blow moulding |
JP2015128905A (en) * | 2009-09-11 | 2015-07-16 | 日精エー・エス・ビー機械株式会社 | Neck type assembly |
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JP3159726B2 (en) | 1991-03-07 | 2001-04-23 | 株式会社東芝 | Heat treatment equipment |
US6217819B1 (en) * | 1999-06-07 | 2001-04-17 | Ernst Dieter Wunderlich | Universal single-row and multi-row insert stretch blow molding method and apparatus therefor |
US6713013B2 (en) * | 2002-03-13 | 2004-03-30 | Ernst Dieter Wunderlich | Single-row and multi-row stretch blow molding method and apparatus therefor |
JP6647144B2 (en) * | 2015-12-11 | 2020-02-14 | 株式会社青木固研究所 | Injection mold and preform molding method and preform of injection stretch blow molding machine, and container molding method and container |
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- 2020-02-13 WO PCT/JP2020/005447 patent/WO2020166642A1/en active Application Filing
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57128519A (en) * | 1981-02-03 | 1982-08-10 | Katashi Aoki | Injection blow molding machine |
JPS57159624A (en) * | 1981-03-27 | 1982-10-01 | Toshiba Mach Co Ltd | Injection stretching blow molding method |
JPH03159726A (en) * | 1989-11-17 | 1991-07-09 | Nissei Ee S B Kikai Kk | Molding method by injection, orientation and blowing |
JPH0679773A (en) * | 1992-08-31 | 1994-03-22 | Nissei Asb Mach Co Ltd | Injection stretch blow molding method and apparatus |
JPH06134845A (en) * | 1992-10-28 | 1994-05-17 | Nissei Asb Mach Co Ltd | Injection stretching blow molding machine |
JP2015128905A (en) * | 2009-09-11 | 2015-07-16 | 日精エー・エス・ビー機械株式会社 | Neck type assembly |
US20130328249A1 (en) * | 2011-01-07 | 2013-12-12 | Mould & Matic Solutions Gmbh | Installation and method for producing hollow bodies by injection moulding and blow moulding |
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TWI738213B (en) | 2021-09-01 |
JP6799725B1 (en) | 2020-12-16 |
TW202043007A (en) | 2020-12-01 |
JPWO2020166642A1 (en) | 2021-02-18 |
JP2021037770A (en) | 2021-03-11 |
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