CN114290648B - Manufacturing equipment for PET plastic container blanks - Google Patents
Manufacturing equipment for PET plastic container blanks Download PDFInfo
- Publication number
- CN114290648B CN114290648B CN202210051788.3A CN202210051788A CN114290648B CN 114290648 B CN114290648 B CN 114290648B CN 202210051788 A CN202210051788 A CN 202210051788A CN 114290648 B CN114290648 B CN 114290648B
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- China
- Prior art keywords
- fan
- plastic container
- sliding tube
- pet plastic
- manufacturing
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 238000001816 cooling Methods 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a manufacturing device of PET plastic container blanks, which comprises: the clamping head is used for fixing the inner container blank and is provided with a hollow part which is penetrated up and down; the air supply assembly is positioned in the hollow part; the first fan is connected with the air supply assembly through a hose; the air supply assembly includes: the sliding tube is positioned in the hollow part, can slide up and down relative to the clamping head, and the upper end of the sliding tube is connected with the first fan through a hose; the distributor is arranged at the lower end of the sliding pipe, and is provided with an upward exhaust hole which is communicated with the sliding pipe; the device can reduce the rejection rate of double-layer plastic container blanks.
Description
Technical Field
The invention relates to the field of bottle production, in particular to equipment for manufacturing PET plastic container blanks.
Background
In the current manufacturing of the PET double-layer plastic container blank, a manufacturing method of separately manufacturing an inner layer and an outer layer and then assembling the inner layer and the outer layer is generally adopted, the manufacturing method is low in efficiency and long in manufacturing time, and meanwhile, the plastic bottle blank is easy to collide with the inner layer and the outer layer in size due to the cooling rate and the like in the manufacturing process, so that the assembly cannot be performed.
Therefore, the prior art proposes a manufacturing method of a double-layer plastic container blank, firstly manufacturing an inner-layer blank, and then directly manufacturing an outer-layer blank by taking the inner-layer blank as a die, so that the inner layer blank and the outer layer blank are tightly combined; the outer layer blank part needs to be heated in the outer layer manufacturing process, when the heating is uneven, the local temperature of the inner layer blank is easy to be too high, the inner layer blank is caused to melt, the plastic container is deformed, and the rejection rate is improved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a manufacturing device of PET plastic container blanks, which can reduce the rejection rate of double-layer plastic container blanks.
The apparatus for manufacturing PET plastic container blanks of the present invention comprises: the clamping head is used for fixing the inner container blank and is provided with a hollow part which is penetrated up and down; the air supply assembly is positioned in the hollow part; the first fan is connected with the air supply assembly through a hose; the air supply assembly includes: the sliding tube is positioned in the hollow part, can slide up and down relative to the clamping head, and the upper end of the sliding tube is connected with the first fan through a hose; the distributor is arranged at the lower end of the sliding pipe, and is provided with an upward exhaust hole which is communicated with the sliding pipe.
According to some embodiments of the invention, the plurality of exhaust holes are uniformly distributed along the circumference of the sliding tube.
According to some embodiments of the invention, a resilient means is further included, the resilient means connecting the gripping head and the dispenser.
According to some embodiments of the invention, the plurality of rebound devices are distributed uniformly along the circumference of the sliding tube.
According to some embodiments of the invention, the distributor is provided with a bevel, the normal direction of the bevel is along the oblique upward direction, the exhaust hole is arranged on the bevel, and the bevel can be abutted against the opening at the lower end of the hollow part.
According to some embodiments of the invention, the apparatus for manufacturing a PET plastic container preform further comprises a linear bearing disposed in the hollow portion, the sliding tube being slidably engaged with the linear bearing, and the clamping head being fixedly connected with the linear bearing.
According to some embodiments of the invention, the apparatus for manufacturing PET plastic container blanks further comprises a cooling device provided on the first fan for cooling the wind blown by the first fan towards the sliding tube.
According to some embodiments of the invention, the apparatus for manufacturing PET plastic container blanks further comprises a semiconductor heat exchange device, and the cooling device comprises a cold end of the semiconductor heat exchange device.
According to some embodiments of the invention, the apparatus for manufacturing the PET plastic container blanks further comprises a second fan, wherein the second fan is located at one side of the hot end of the semiconductor heat exchange device, and air blown by the first fan passes through the hot end of the semiconductor heat exchange device and then is blown to the outer container blanks.
According to some embodiments of the invention, the first fan and the second fan of the manufacturing device of the PET plastic container blanks are both axial flow fans.
By using the manufacturing equipment of the PET plastic container blanks, in the actual manufacturing process, the clamping heads can be controlled to be plugged into the bottle mouth of the inner container blank and fixed, then the outer container blank is manufactured on the outer side of the inner container blank, meanwhile, a first fan is started to supply air to the air supply assembly, and air flows sequentially pass through the sliding tube and the distributor under the driving of the first fan and are discharged from the exhaust hole; because the exhaust hole extends upwards in an inclined way, when the air flow is exhausted from the exhaust hole, the distributor is driven by downward acting force to slide the sliding tube downwards to the bottom of the inner bottle blank together, and the inner bottle blank is blown from the bottom of the inner bottle blank to dissipate heat, so that the heat dissipation uniformity of the inner bottle blank is effectively improved; the occurrence of deformation caused by overhigh local temperature of the inner layer bottle embryo is reduced, and the rejection rate is effectively reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is an axial side view showing a part of the construction of a manufacturing apparatus for PET plastic container blanks according to an embodiment of the present invention;
FIG. 2 is a top view of a portion of the construction of the apparatus for making PET plastic container blanks of FIG. 1; the method comprises the steps of carrying out a first treatment on the surface of the
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a schematic system diagram of a portion of a system for manufacturing PET plastic container blanks according to an embodiment of the present invention; the above figures contain the following reference numerals.
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Clamping head | 310 | Air guide pipe |
| 110 | Linear bearing | 320 | Cold end |
| 200 | Air supply assembly | 330 | First fan |
| 210 | Sliding tube | 340 | Second fan |
| 220 | Dispenser | 350 | Hot end |
| 221 | Exhaust hole | 360 | Distributing pipe |
| 240 | Rebound device | 370 | DC power supply |
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality means one or more, and a plurality means two or more, and it is understood that greater than, less than, exceeding, etc. does not include the present number, and it is understood that greater than, less than, within, etc. include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 4, the apparatus for manufacturing a PET plastic container preform of the present embodiment includes: the clamping head 100 is used for fixing the inner container blank, and the clamping head 100 is provided with a hollow part which penetrates up and down; a gas supply assembly 200 located in the hollow portion; the first fan 330 connected with the air supply assembly 200 through a hose; the air supply assembly 200 includes: a sliding tube 210 located in the hollow portion, the sliding tube 210 being capable of sliding up and down with respect to the clamping head 100, an upper end of the sliding tube 210 being connected to the first fan 330 through a hose; the distributor 220 is arranged at the lower end of the sliding tube 210, and the distributor 220 is provided with an upward exhaust hole 221, and the exhaust hole 221 is communicated with the sliding tube 210.
With the above-mentioned PET plastic container preform manufacturing apparatus, during the actual manufacturing process, the clamping head 100 may be controlled to be plugged into the mouth of the inner container preform and fixed, then the outer container preform is manufactured outside the inner container preform, and simultaneously the first fan 330 is turned on to supply air to the air supply assembly 200, and the air flow is driven by the first fan 330 to sequentially pass through the sliding tube 210 and the distributor 220, and is discharged from the air outlet 221; because the exhaust hole 221 extends obliquely upwards, when the air flow is exhausted from the exhaust hole 221, the distributor 220 is driven by downward acting force to slide the sliding tube 210 downwards to the bottom of the inner bottle blank together, and the inner bottle blank is blown from the bottom of the inner bottle blank to dissipate heat, so that the heat dissipation uniformity of the inner bottle blank is effectively improved; the occurrence of deformation caused by overhigh local temperature of the inner layer bottle embryo is reduced, and the rejection rate is effectively reduced.
Wherein, the first fan 330 is connected with the upper end of the sliding tube 210 through a hose, and when the sliding tube 210 slides up and down in the hollow portion, the hose can be deformed along with the sliding of the sliding tube 210, so that the wind blown by the first fan 330 can be continuously supplied toward the sliding tube 210.
As shown in fig. 1 and 2, a plurality of exhaust holes 221 are provided, and the exhaust holes 221 are uniformly distributed along the circumferential direction of the sliding tube 210; in the actual use process, the air is discharged from the plurality of exhaust holes 221, so that the air supply assembly 200 is prevented from deflecting moment caused by the air flow blown out from one side while the uniform heat dissipation around the inner wall of the inner container blank can be ensured, and the air supply assembly 200 is caused to rotate.
As shown in fig. 1 and 3, the apparatus for manufacturing the PET plastic container blanks further includes a spring back 240, wherein the spring back 240 connects the clamping head 100 and the dispenser 220; when the first fan 330 blows air to the sliding tube 210 through the hose, the air is blown out obliquely upward from the air outlet 221, the dispenser 220 is subjected to the force of the air flow, and moves downward against the elastic force of the rebound device 240, so that the dispenser 220 approaches the bottle bottom, cold air is delivered to the inner wall of the bottle bottom, and the cold air flows upward after being heated.
The sliding tube 210 and the clamping head 100 may be set to be in clearance fit, so that cold air flows upwards after being heated, and is discharged from the gap between the sliding tube 210 and the clamping head 100, thereby ensuring heat dissipation and ventilation.
Wherein, in order to prevent the sliding tube 210 from twisting during the rebound process under the action of the rebound device 240, there are a plurality of rebound devices 240, and a plurality of rebound devices 240 are uniformly distributed along the circumference of the sliding tube 210; the rebound device 240 may be a component having a rebound function, such as an extension spring, an elastic band, etc., which are widely used in the prior art.
As shown in fig. 3, in order to ensure the stability of the movement of the sliding tube 210 during the sliding process, a linear bearing 110 may be disposed between the sliding tube 210 and the inner wall of the hollow portion, the sliding tube 210 is slidably engaged with the linear bearing 110, and the clamping head 100 is fixedly connected to the linear bearing 110, at this time, the heated air flow is actually discharged from the gap of the linear bearing 110.
As shown in fig. 3, the distributor 220 is provided with a slope, the normal direction of the slope is along the upward direction, the exhaust hole 221 is arranged on the slope, and the slope can be abutted against the opening at the lower end of the hollow part; as shown in fig. 3, after the first fan 330 stops rotating, the dispenser 220 is driven by the rebound device 240 to move upwards, and the inclined surface can abut against the edge of the lower end of the hollow portion to seal the hollow portion, so as to prevent the air leakage of the clamping head 100 during the manufacturing process of the inner container blank.
As shown in fig. 4, the apparatus for manufacturing pet plastic container blanks further includes a cooling device provided on the first fan 330, the cooling device being for cooling the wind blown by the first fan 330 toward the slide tube 210; specifically, the air blown by the first fan 330 is cooled by the cooling device and then blown into the sliding tube 210 through the air guide pipe 310 and the hose.
It will be appreciated that the cooling device may cool the air blown by the first fan 330 in a variety of ways, such as by a water-cooled radiator connected to a tap water line, by cooling the air blown by the first fan 330 in a water-cooled manner, or by using an evaporator of a heat pump system, by cooling the air blown by the first fan 330, etc.
As shown in fig. 4, the apparatus for manufacturing PET plastic container blanks further comprises a semiconductor heat exchange device, and the cooling device comprises a cold end 320 of the semiconductor heat exchange device; the cold end 320 of the semiconductor heat exchange device can absorb heat of the air flow blown out by the first fan 330 and transfer the heat to the hot end 350 under the driving of the dc power supply 370, so as to cool the air flow blown out by the first fan 330.
As shown in fig. 4, the apparatus for manufacturing the PET plastic container blanks further includes a second fan 340, the second fan 340 is located at one side of the hot end 350 of the semiconductor heat exchange device, and the air blown by the first fan 330 is blown to the outer container blanks after passing through the hot end 350 of the semiconductor heat exchange device; the semiconductor heat exchange device can use the heat absorbed by the inner container blank when cooling the outer container blank to heat the outer container blank, so that the energy consumption when heating the outer container blank is reduced, and the energy efficiency ratio is improved.
Specifically, the air blown by the second fan 340 is heated by the hot end 350 and then is blown to the outer container blank through the distribution pipe 360 for heating during manufacturing of the outer container blank.
Specifically, the first fan 330 and the second fan 340 are both axial flow fans.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (6)
1. A manufacturing apparatus for PET plastic container blanks, comprising:
the clamping head (100) is used for fixing the inner container blank, and the clamping head (100) is provided with a hollow part which penetrates up and down;
a gas supply assembly (200) located in the hollow portion;
a first fan (330) connected to the air supply assembly (200) through a hose;
the air supply assembly (200) includes:
a sliding tube (210) located in the hollow portion, wherein the sliding tube (210) can slide up and down relative to the clamping head (100), and the upper end of the sliding tube (210) is connected with the first fan (330) through a hose;
the distributor (220) is arranged at the lower end of the sliding tube (210), an upward exhaust hole (221) is formed in the distributor (220), and the exhaust hole (221) is communicated with the sliding tube (210); the plurality of exhaust holes (221) are uniformly distributed along the circumferential direction of the sliding tube (210);
further comprising a rebound device (240), the rebound device (240) connecting the gripping head (100) with the dispenser (220);
a plurality of rebound devices (240) are arranged, and the rebound devices (240) are uniformly distributed along the circumferential direction of the sliding tube (210);
the distributor (220) is provided with an inclined plane, the normal direction of the inclined plane is along the inclined upward direction, the exhaust hole (221) is formed in the inclined plane, and the inclined plane can be abutted to the opening at the lower end of the hollow part.
2. The apparatus for manufacturing a PET plastic container preform according to claim 1, further comprising a linear bearing (110) provided in the hollow portion, the slide tube (210) being slidably fitted with the linear bearing (110), the clamping head (100) being fixedly connected with the linear bearing (110).
3. The apparatus for manufacturing PET plastic container blanks according to claim 1, further comprising a cooling device provided on the first fan (330) for cooling the wind blown by the first fan (330) toward the slide tube (210).
4. A plant for manufacturing PET plastic container blanks according to claim 3, further comprising a semiconductor heat exchange device, said cooling device comprising a cold end (320) of said semiconductor heat exchange device.
5. The apparatus for manufacturing the PET plastic container blanks according to claim 4, further comprising a second fan (340), wherein the second fan (340) is located at one side of the hot end (350) of the semiconductor heat exchange device, and the air blown by the first fan (330) passes through the hot end (350) of the semiconductor heat exchange device and then blows toward the outer container blanks.
6. The apparatus for producing PET plastic container blanks according to claim 5, wherein the first fan (330) and the second fan (340) are both axial fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210051788.3A CN114290648B (en) | 2022-01-17 | 2022-01-17 | Manufacturing equipment for PET plastic container blanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210051788.3A CN114290648B (en) | 2022-01-17 | 2022-01-17 | Manufacturing equipment for PET plastic container blanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114290648A CN114290648A (en) | 2022-04-08 |
| CN114290648B true CN114290648B (en) | 2024-02-13 |
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ID=80978145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210051788.3A Active CN114290648B (en) | 2022-01-17 | 2022-01-17 | Manufacturing equipment for PET plastic container blanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114290648B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5085822A (en) * | 1989-08-31 | 1992-02-04 | Nissei Asb Machine Co., Ltd. | Method for stretch blow molding and uniformly cooling a hollow heat-resistant |
| JPH05329918A (en) * | 1992-05-28 | 1993-12-14 | Denki Kagaku Kogyo Kk | Manufacture of resin hollow container |
| JPH0639910A (en) * | 1992-07-24 | 1994-02-15 | Denki Kagaku Kogyo Kk | Manufacture of hollow resin container |
| JPH10128832A (en) * | 1996-10-29 | 1998-05-19 | Japan Steel Works Ltd:The | Multilayer container, and method and apparatus for making the same |
| JP2000343590A (en) * | 1999-06-02 | 2000-12-12 | Toyo Seikan Kaisha Ltd | Method and apparatus for producing biaxially stretched blow molded container |
| CN104434537A (en) * | 2014-10-20 | 2015-03-25 | 宁波爱麦田母婴用品有限公司 | Process for making double-layer bottle/cup |
| CN210820645U (en) * | 2019-09-24 | 2020-06-23 | 江门敬记塑胶厂有限公司 | Bottle blank and mold for manufacturing same |
| CN113046848A (en) * | 2021-03-05 | 2021-06-29 | 太仓逸枫化纤有限公司 | Preparation method and equipment of ultrahigh hollow thermal polyester filament |
| CN214294413U (en) * | 2020-10-28 | 2021-09-28 | 昆山聚彩模具设备有限公司 | Thermoplastic molding blow mold |
-
2022
- 2022-01-17 CN CN202210051788.3A patent/CN114290648B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5085822A (en) * | 1989-08-31 | 1992-02-04 | Nissei Asb Machine Co., Ltd. | Method for stretch blow molding and uniformly cooling a hollow heat-resistant |
| JPH05329918A (en) * | 1992-05-28 | 1993-12-14 | Denki Kagaku Kogyo Kk | Manufacture of resin hollow container |
| JPH0639910A (en) * | 1992-07-24 | 1994-02-15 | Denki Kagaku Kogyo Kk | Manufacture of hollow resin container |
| JPH10128832A (en) * | 1996-10-29 | 1998-05-19 | Japan Steel Works Ltd:The | Multilayer container, and method and apparatus for making the same |
| JP2000343590A (en) * | 1999-06-02 | 2000-12-12 | Toyo Seikan Kaisha Ltd | Method and apparatus for producing biaxially stretched blow molded container |
| CN104434537A (en) * | 2014-10-20 | 2015-03-25 | 宁波爱麦田母婴用品有限公司 | Process for making double-layer bottle/cup |
| CN210820645U (en) * | 2019-09-24 | 2020-06-23 | 江门敬记塑胶厂有限公司 | Bottle blank and mold for manufacturing same |
| CN214294413U (en) * | 2020-10-28 | 2021-09-28 | 昆山聚彩模具设备有限公司 | Thermoplastic molding blow mold |
| CN113046848A (en) * | 2021-03-05 | 2021-06-29 | 太仓逸枫化纤有限公司 | Preparation method and equipment of ultrahigh hollow thermal polyester filament |
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| Publication number | Publication date |
|---|---|
| CN114290648A (en) | 2022-04-08 |
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