CN110815783A - Intelligent full-automatic plastic bottle blowing device - Google Patents

Intelligent full-automatic plastic bottle blowing device Download PDF

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Publication number
CN110815783A
CN110815783A CN201911150936.1A CN201911150936A CN110815783A CN 110815783 A CN110815783 A CN 110815783A CN 201911150936 A CN201911150936 A CN 201911150936A CN 110815783 A CN110815783 A CN 110815783A
Authority
CN
China
Prior art keywords
control box
telescopic rod
hydraulic telescopic
bottle blowing
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911150936.1A
Other languages
Chinese (zh)
Inventor
李锦坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangmen Junyang Hardware And Plastic Products Co Ltd
Original Assignee
Jiangmen Junyang Hardware And Plastic Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangmen Junyang Hardware And Plastic Products Co Ltd filed Critical Jiangmen Junyang Hardware And Plastic Products Co Ltd
Priority to CN201911150936.1A priority Critical patent/CN110815783A/en
Publication of CN110815783A publication Critical patent/CN110815783A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06Injection blow-moulding
    • B29C49/061Injection blow-moulding with parison holding means displaceable between injection and blow stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4205Handling means, e.g. transfer, loading or discharging means
    • B29C49/42069Means explicitly adapted for transporting blown article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/64Heating or cooling preforms, parisons or blown articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/78Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding

Abstract

The invention discloses an intelligent full-automatic plastic bottle blowing device, which comprises a bottle blowing machine body, a feeding hole, a heating chamber, an injection molding machine, a first mold, a manipulator, a high-pressure air blowing machine, a second mold, a hydraulic control box, a first hydraulic telescopic rod, a second hydraulic telescopic rod, a third hydraulic telescopic rod, a fourth hydraulic telescopic rod, a cooling plate, a dust removal fan, a servo motor, a conveying belt and a control box, wherein the dust removal fan is arranged for removing dust in the bottle blowing machine body when the bottle blowing machine works and preventing the dust from entering the plastic bottle body to influence the quality of a produced finished product when the bottle blowing machine works, the cooling plate is arranged for cooling and shaping the processed plastic bottle, the servo motor and the conveying belt are arranged for conveying the processed plastic bottle to the outside of the bottle blowing machine body, and products from injection molding to output are fully-automatically operated in the invention, manual operation is not needed, the production efficiency is improved, and the production cost is reduced.

Description

Intelligent full-automatic plastic bottle blowing device
Technical Field
The invention relates to the technical field of bottle blowing machines, in particular to an intelligent full-automatic plastic bottle blowing device.
Background
The bottle blowing machine is a device for manufacturing plastic particles into hollow containers through a blow molding process, and the common machine types at present comprise a hollow extrusion blowing machine which uses PP or PE for one-step molding, a bottle blowing machine which uses PET, PC or PP for two-step molding, and a newly developed multilayer hollow extrusion blowing and stretch blow molding. At present, most bottle blowing machines are two-step bottle blowing machines, namely, plastic raw materials are made into bottle blanks firstly, and then blowing is carried out. Nowadays, environmental protection plastics made of PET are generally used. A blow molding machine is a machine that blows a liquid plastic material and then blows the plastic material into a cavity having a predetermined shape by the wind force of the machine, and the machine is called a blow molding machine. Also relates to a bottle blowing machine, namely a hydraulic bottle blowing machine. The thermoplastic resin is extruded or injection molded to obtain tubular plastic parison, which is hot or heated to soften, and then placed in a split mold, after the mold is closed, compressed air is introduced into the parison to blow the plastic parison to cling to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained. However, after the conventional bottle blowing machine is used for too long time, a lot of dust which cannot be removed exists inside the bottle blowing machine, and if the dust is too much, the quality of a produced finished product is affected, so that people urgently need a novel bottle blowing machine to solve the problems.
Disclosure of Invention
The invention provides an intelligent full-automatic plastic bottle blowing device which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent full-automatic plastic bottle blowing device comprises a bottle blowing machine body, a feeding hole, a heating chamber, a heating plate, an injection molding machine, an injection molding hole, a first mold, a first hydraulic telescopic rod, a hydraulic control box, a first lifting control box, a second hydraulic telescopic rod, a manipulator, a second lifting control box, a high-pressure air blower, an air inlet pipe, a third hydraulic telescopic rod, an air inlet, a fourth hydraulic telescopic rod, a bottle blank supporting plate, a second mold, a control box, a servo motor, a transmission chain, a transmission roller, a conveying belt, a bottle outlet, a cooling plate and a dust removing fan, wherein the feeding hole is formed in the upper portion of the bottle blowing machine body, the heating chamber is arranged below the feeding hole, the heating plate is arranged on the inner wall of the heating chamber, the injection molding machine is arranged below the heating chamber, the injection molding hole is formed in one end of the injection molding machine, the first mold is arranged below the injection molding, a hydraulic control box is arranged at one end of the first hydraulic telescopic rod, a first lifting control box is arranged outside the hydraulic control box, a second hydraulic telescopic rod is arranged at one side of the first lifting control box, a manipulator is arranged at one end of the second hydraulic telescopic rod, a second lifting control box is arranged at one end of the hydraulic control box, a third hydraulic telescopic rod is arranged at one side of the second lifting control box, an air inlet pipe is arranged inside the third hydraulic telescopic rod, a high-pressure air blower is arranged at one end of the air inlet pipe, an air inlet is arranged at the other end of the air inlet pipe, a bottle blank supporting rod is arranged below the air inlet, a second mold is arranged below the bottle blank supporting rod, fourth hydraulic telescopic rods are arranged at two sides of the second mold, a conveying belt is arranged below the second mold, a transmission roller is arranged at one end of the conveying belt, and a transmission chain is arranged outside, the bottle blowing machine is characterized in that a servo motor is arranged at one end of the transmission chain, a bottle outlet is formed in the other end of the transmission belt, a cooling plate is arranged above the conveying belt, a control box is arranged on one side of the bottle blowing machine body, and a dust removal fan is arranged on the other side of the bottle blowing machine body.
Preferably, the output end of the control box is electrically connected with the input ends of the dust removing fan, the heating plate, the injection molding machine, the hydraulic control box, the servo motor, the high-pressure air blower, the first lifting control box, the second lifting control box and the cooling plate, and the control box is electrically connected with the power supply.
Preferably, the first hydraulic telescopic rod, the second hydraulic telescopic rod, the third hydraulic telescopic rod and the fourth hydraulic telescopic rod are all members made of steel.
Preferably, the diameter of the manipulator is smaller than the diameter of the bottle mouth.
Preferably, the hydraulic control box, the high-pressure air blower and the control box are all fixed on the side wall of the air blower body through screws.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure, safe and convenient use, and is provided with the dust removal fan, so that dust in the bottle blowing machine body can be removed when the bottle blowing machine works, the dust is prevented from entering the plastic bottle body when the bottle blowing machine works and influencing the quality of a produced finished product, the invention is provided with the cooling plate which can carry out cooling operation on the processed plastic bottle, the servo motor and the conveyor belt are arranged, the processed plastic bottle can be conveyed to the outside of the bottle blowing machine body, the hydraulic control box is arranged, and the hydraulic rod can be controlled by the hydraulic control box to fully automatically operate the whole production process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the robot of the present invention;
FIG. 3 is a schematic view of the construction of the dust removing fan of the present invention;
reference numbers in the figures: 1. a bottle blowing machine body; 2. a feed inlet; 3. a heating chamber; 4. heating plates; 5. an injection molding machine; 6. an injection molding port; 7. a first mold; 8. a first hydraulic telescopic rod; 9. a hydraulic control box; 10. a first lift control box; 11. a second hydraulic telescopic rod; 12. a manipulator; 13. a second lift control box; 14. a high pressure blower; 15. an air inlet pipe; 16. a third hydraulic telescopic rod; 17. an air inlet; 18. a fourth hydraulic telescopic rod; 19. a bottle blank support plate; 20. a second mold; 21. a control box; 22. a servo motor; 23. a drive chain; 24. a driving roller; 25. a conveyor belt; 26. discharging the bottle mouth; 27. a cooling plate; 28. a dust removal fan.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-3, the invention provides a technical scheme, an intelligent full-automatic plastic bottle blowing device, which comprises a bottle blowing machine body 1, a feeding hole 2, a heating chamber 3, a heating plate 4, an injection molding machine 5, an injection molding opening 6, a first mold 7, a first hydraulic telescopic rod 8, a hydraulic control box 9, a first lifting control box 10, a second hydraulic telescopic rod 11, a manipulator 12, a second lifting control box 13, a high-pressure air blower 14, an air inlet pipe 15, a third hydraulic telescopic rod 16, an air inlet 17, a fourth hydraulic telescopic rod 18, a bottle blank supporting plate 19, a second mold 20, a control box 21, a servo motor 22, a transmission chain 23, a transmission roller 24, a transmission belt 25, a bottle outlet 26, a cooling plate 27 and a dust removing fan 28, wherein the feeding hole 2 is arranged above the bottle blowing machine body 1, the heating chamber 3 is arranged below the feeding hole 2, the heating plate 4 is arranged on the inner wall of the, an injection molding machine 5 is arranged below the heating chamber 3, an injection port 6 is arranged at one end of the injection molding machine 5, a first mold 7 is arranged below the injection port 6, first hydraulic telescopic rods 8 are arranged at two ends of the first mold 7, a hydraulic control box 9 is arranged at one end of each first hydraulic telescopic rod 8, a first lifting control box 10 is arranged outside each hydraulic control box 9, a second hydraulic telescopic rod 11 is arranged at one side of each first lifting control box 10, a manipulator 12 is arranged at one end of each second hydraulic telescopic rod 11, a second lifting control box 13 is arranged at one end of each hydraulic control box 9, a third hydraulic telescopic rod 16 is arranged at one side of each second lifting control box 13, an air inlet pipe 15 is arranged inside each third hydraulic telescopic rod 16, a high-pressure air blower 14 is arranged at one end of each air inlet pipe 15, an air inlet 17 is arranged at the other end of each air inlet pipe 15, a bottle blank supporting rod 19 is, the two sides of the second mold 20 are provided with fourth hydraulic telescopic rods 18, a conveying belt 25 is arranged below the second mold 20, one end of the conveying belt 25 is provided with a transmission roller 24, the outer side of the transmission roller 24 is provided with a transmission chain 23, one end of the transmission chain 23 is provided with a servo motor 22, the other end of the transmission belt 25 is provided with a bottle outlet 26, a cooling plate 27 is arranged above the conveying belt 25, one side of the bottle blowing machine body 1 is provided with a control box 21, and the other side of the bottle blowing machine body 1 is provided with a dust removal fan 28.
Preferably, the output end of the control box 21 is electrically connected to the input ends of the dust removing fan 28, the heating plate 4, the injection molding machine 5, the hydraulic control box 9, the servo motor 22, the high pressure blower 14, the first lifting control box 10, the second lifting control box 13 and the cooling plate 27, and the control box 21 is electrically connected to a power supply, so that the whole device can normally operate under the driving of electric energy.
Preferably, the first hydraulic telescopic rod 8, the second hydraulic telescopic rod 11, the third hydraulic telescopic rod 16 and the fourth hydraulic telescopic rod 18 are all steel members, so as to bear higher pressure and prolong the service life of the bottle blowing machine.
Preferably, the diameter of the manipulator 12 is smaller than the diameter of the bottle opening, so as to be capable of clamping the bottle blank more firmly.
Preferably, hydraulic control box 9, high pressure blower 14 and control box 21 are all fixed to the side wall of blower body 1 by screws, so that the whole apparatus can operate more stably.
The working principle and the using process of the invention are as follows: opening the main power button of the control box 21, opening the power button of the dust removing fan 28 and the heating plate 4, pouring plastic particles into the feed port, opening the power button of the injection molding machine 5, the hydraulic control box 9, the first lifting control box 10, the high-pressure air blower 14, the second lifting control box 13, the cooling plate 27 and the servo motor 22, after heating is completed, injecting the melted plastic into the first mold 7 through the injection port 6 of the injection molding machine 5, pulling the first mold 7 to two sides by the first hydraulic telescopic rod 8 under the action of the hydraulic control box 9, allowing the basically-shaped bottle blanks to enter the bottle blank support plate 19 downwards, grasping the bottle mouth of the bottle blanks by the manipulator 12 by the second hydraulic telescopic rod 11 under the action of the hydraulic control box 9, pulling the fourth hydraulic telescopic rod 18 to two sides by the action of the hydraulic control box 9, and pulling the manipulator 12 under the action of the first lifting control box 10, the bottle embryo is put into a second mold 20, a third hydraulic telescopic rod 16 sends an air inlet 17 to the upper part of the second mold 20 under the action of a hydraulic control box 9, then the third hydraulic telescopic rod 16 sends the air inlet 17 to the bottle mouth of the bottle embryo under the action of a second lifting control box 13, high-pressure air is blown into the bottle embryo under the action of a high-pressure air blower 14, the outer side wall of the bottle embryo is blown to be attached to the inner wall of the second mold 20, after one end is cooled for a time, the bottle body is basically shaped, a fourth hydraulic telescopic rod 18 is pulled open towards two sides under the action of the hydraulic control box 9, the shaped bottle body can enter a conveying belt 25 below, the conveying belt 25 sends the shaped bottle body out of the air blower body 1 under the action of a servo motor 22, and the bottle body is completely shaped through the cooling of a cooling plate 27.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An intelligent full-automatic plastic bottle blowing device comprises a bottle blowing machine body (1), a feeding port (2), a heating chamber (3), a heating plate (4), an injection molding machine (5), an injection molding port (6), a first mold (7), a first hydraulic telescopic rod (8), a hydraulic control box (9), a first lifting control box (10), a second hydraulic telescopic rod (11), a manipulator (12), a second lifting control box (13) and a high-pressure air blower (14), intake pipe (15), third hydraulic telescoping rod (16), air inlet (17), fourth hydraulic telescoping rod (18), bottle embryo backup pad (19), second mould (20), control box (21), servo motor (22), drive chain (23), driving drum (24), conveyer (25), bottle mouth (26), cooling board (27) and dust exhausting fan (28), its characterized in that: a feeding hole (2) is arranged above the bottle blowing machine body (1), a heating chamber (3) is arranged below the feeding hole (2), a heating plate (4) is arranged on the inner wall of the heating chamber (3), an injection molding machine (5) is arranged below the heating chamber (3), an injection molding port (6) is arranged at one end of the injection molding machine (5), a first mold (7) is arranged below the injection molding port (6), first hydraulic telescopic rods (8) are arranged at two ends of the first mold (7), a hydraulic control box (9) is arranged at one end of each first hydraulic telescopic rod (8), a first lifting control box (10) is arranged outside the hydraulic control box (9), a second hydraulic telescopic rod (11) is arranged at one side of the first lifting control box (10), a manipulator (12) is arranged at one end of each second hydraulic telescopic rod (11), a second lifting control box (13) is arranged at one end of each hydraulic control box (9), a third hydraulic telescopic rod (16) is arranged on one side of the second lifting control box (13), an air inlet pipe (15) is arranged inside the third hydraulic telescopic rod (16), a high-pressure air blower (14) is arranged at one end of the air inlet pipe (15), an air inlet (17) is arranged at the other end of the air inlet pipe (15), a bottle blank supporting rod (19) is arranged below the air inlet (17), a second mold (20) is arranged below the bottle blank supporting rod (19), fourth hydraulic telescopic rods (18) are arranged on two sides of the second mold (20), a conveying belt (25) is arranged below the second mold (20), a transmission roller (24) is arranged at one end of the conveying belt (25), a transmission chain (23) is arranged on the outer side of the transmission roller (24), a servo motor (22) is arranged at one end of the transmission chain (23), and a bottle outlet (26) is arranged at the other end of the transmission, a cooling plate (27) is arranged above the conveying belt (25), a control box (21) is arranged on one side of the bottle blowing machine body (1), and a dust removing fan (28) is arranged on the other side of the bottle blowing machine body (1).
2. The intelligent full-automatic plastic bottle blowing device according to claim 1, characterized in that: the output end of the control box (21) is electrically connected with the input ends of a dust removing fan (28), the heating plate (4), the injection molding machine (5), the hydraulic control box (9), the servo motor (22), the high-pressure air blower (14), the first lifting control box (10), the second lifting control box (13) and the cooling plate (27), and the control box (21) is electrically connected with a power supply.
3. The intelligent full-automatic plastic bottle blowing device according to claim 1, characterized in that: the first hydraulic telescopic rod (8), the second hydraulic telescopic rod (11), the third hydraulic telescopic rod (16) and the fourth hydraulic telescopic rod (18) are all members made of steel.
4. The intelligent full-automatic plastic bottle blowing device according to claim 1, characterized in that: the diameter of the manipulator (12) is smaller than that of the bottle mouth.
5. The intelligent full-automatic plastic bottle blowing device according to claim 1, characterized in that: the hydraulic control box (9), the high-pressure air blower (14) and the control box (21) are all fixed on the side wall of the air blower body (1) through screws.
CN201911150936.1A 2019-11-21 2019-11-21 Intelligent full-automatic plastic bottle blowing device Withdrawn CN110815783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911150936.1A CN110815783A (en) 2019-11-21 2019-11-21 Intelligent full-automatic plastic bottle blowing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911150936.1A CN110815783A (en) 2019-11-21 2019-11-21 Intelligent full-automatic plastic bottle blowing device

Publications (1)

Publication Number Publication Date
CN110815783A true CN110815783A (en) 2020-02-21

Family

ID=69558104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911150936.1A Withdrawn CN110815783A (en) 2019-11-21 2019-11-21 Intelligent full-automatic plastic bottle blowing device

Country Status (1)

Country Link
CN (1) CN110815783A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157893A (en) * 2020-09-15 2021-01-01 郝恩政 Automatic bottle blowing machine in duplex position
CN112793127A (en) * 2021-01-06 2021-05-14 贵州巨博塑料制品有限公司 Automatic injection molding production equipment for food packaging box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157893A (en) * 2020-09-15 2021-01-01 郝恩政 Automatic bottle blowing machine in duplex position
CN112157893B (en) * 2020-09-15 2022-05-06 郝恩政 Automatic bottle blowing machine in duplex position
CN112793127A (en) * 2021-01-06 2021-05-14 贵州巨博塑料制品有限公司 Automatic injection molding production equipment for food packaging box

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WW01 Invention patent application withdrawn after publication

Application publication date: 20200221

WW01 Invention patent application withdrawn after publication