Plastic bottle production equipment and production process thereof

Abstract

The invention discloses plastic bottle production equipment and a production process thereof, and relates to the technical field of plastic bottle production, the plastic bottle production equipment comprises an injection molding machine, a blow molding mechanism, a workbench, a rotation mechanism and an extrusion mechanism; the blow molding mechanism comprises a first blow molding assembly and a second blow molding assembly which are arranged on the two sides of the extrusion mechanism. A first module and a second module are arranged on the workbench in a sliding mode, and a first conveying belt and a second conveying belt are arranged on one side of the workbench. The alternating mechanism comprises an electric sliding rail and a sliding table, the electric sliding rail is arranged on the workbench, and the sliding table is used for driving the first module and the second module to move among the first blow molding assembly, the extrusion mechanism and the second blow molding assembly; the extrusion mechanism is used for controlling opening and closing of the first module and the second module. The alternating mechanism is arranged to continuously drive the first module and the second module, alternate production of plastic bottles of different specifications is achieved, and the problem that the plastic bottles of multiple specifications cannot be produced on the same production line at the same time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bottle production, and in particular to plastic bottle production equipment and a production process thereof. Background Art

[0002] Plastic bottles are products that can be seen everywhere in life, and the existence of plastic bottles has greatly improved people's quality of life. Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents.

[0003] Plastic bottles are widely made of polyester, polyethylene, and polypropylene as raw materials. After adding corresponding organic solvents, they are heated at high temperatures and then blow molded, extruded, or injection molded through plastic molds to form plastic containers.

[0004] Plastic bottles come in a variety of specifications. For plastic bottles with a small daily output demand, opening a separate production line is prone to overcapacity, which in turn causes increased costs and waste. Therefore, a plastic bottle production equipment and a production process thereof are proposed to meet the demand for stable production of plastic bottles of multiple specifications on the same production line. Summary of the invention

[0005] The main purpose of the present invention is to provide a plastic bottle production device and a production process thereof, which can effectively solve the problems in the background technology by blow molding with two molds of different specifications in rotation and alternation.

[0006] To achieve the above-mentioned purpose, the present invention provides a plastic bottle production equipment and a production process thereof, including an injection molding machine, a blow molding mechanism, a workbench, a rotation mechanism and an extrusion mechanism;

[0007] The injection molding machine includes a hopper, a heating mechanism and an extrusion mechanism;

[0008] The blow molding mechanism comprises a first blow molding component and a second blow molding component, wherein the first blow molding component and the second blow molding component are symmetrically arranged on both sides of the extrusion mechanism;

[0009] The side of the workbench close to the blow molding mechanism is slidably connected with a first module and a second module, and the side of the workbench far from the blow molding mechanism is respectively provided with a first conveyor belt and a second conveyor belt;

[0010] The rotation mechanism includes an electric slide rail and a slide table, wherein the electric slide rail is arranged on the workbench, and the slide table is slidably mounted on the electric slide rail, and the slide table is used to drive the first module and the second module to move between the first blow molding component, the extrusion mechanism and the second blow molding component;

[0011] The squeezing mechanism is used to control the opening and closing of the first die set and the second die set.

[0012] Based on the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, baffles are respectively provided on the first conveyor belt and the second conveyor belt, the workbench, the first conveyor belt and the second conveyor belt are arranged in sequence at intervals, one end of the first conveyor belt is arranged on one side of the blow molding port of the second blow molding component, and one end of the second conveyor belt is arranged on one side of the blow molding port of the first blow molding component.

[0014] Furthermore, condensing pipes are provided in both the first module and the second module.

[0015] Further, the first mold group includes two first half molds, the second mold group includes two second half molds, the extrusion mechanism includes a first control component and a second control component, the first control component and the second control component are installed on the slide table of the electric slide rail at intervals, the first control component includes a first motor and a first screw rod, the two first half molds are respectively mounted on the two ends of the first screw rod through the mounting member thread, the second control component includes a second motor and a second screw rod, the two second half molds are respectively mounted on the two ends of the second screw rod through the mounting member thread.

[0016] Furthermore, the first screw rod and the second screw rod are both left-hand and right-hand screw rods.

[0017] Furthermore, the first motor, the second motor and the electric slide rail are respectively connected to a PLC.

[0018] The present invention also provides a production process using the plastic bottle production equipment, the plastic bottle production process comprising the following steps:

[0019] S1. Raw material preparation: the mixed raw materials are fed from the hopper, the raw materials are melted by heating and the shearing action of the feed screw, and a cylindrical plastic parison is formed from the extrusion nozzle of the extrusion mechanism;

[0020] S2. Taking out the preform of the first specification bottle body: the slide drives the first die set and the second die set to move to the position where the first die set is facing the extrusion nozzle of the extrusion mechanism, and the two first half molds are closed;

[0021] S3. Blow molding of bottles of the first specification: the slide drives the first mold group to move to one side of the first blow molding assembly for blow molding, the air forces the plastic in the first mold group to form the shape of the mold, the first screw rotates, the two first half molds are separated, the bottles of the first specification fall to the first conveyor belt, and at the same time the second mold group moves to the extrusion nozzle of the second mold group facing the extrusion mechanism, and the two second half molds are closed;

[0022] S4. Blow molding of the second specification bottle body: the slide drives the second mold group to move to one side of the second blow molding assembly for blow molding. After blow molding, the second screw rotates, the two second half molds are separated, and the second specification bottle body falls to the second conveyor belt.

[0023] The beneficial effects of the present invention are as follows: the present invention provides a plastic bottle production equipment and a production process thereof, which have the following advantages:

[0024] 1. The present invention sets a first module and a second module of different specifications. When the slide drives the first module to move to one side of the extrusion nozzle of the extrusion mechanism, the two first half-molds are closed, and then the parison is cut in the mold cavity of the first module. The slide continues to drive the first module and the parison to move to the first blow molding assembly for blow molding. During the movement, the two second half-molds are in a separated state. During the blow molding process of the first specification bottle body in the first module, the second module cuts the parison in the mold cavity. After the blow molding of the first specification bottle body is completed, the two first half-molds are separated, and then the first specification bottle body falls to the first blow molding assembly. On the conveyor belt, the first module moves toward the extrusion mechanism, the second module and the preform move to the second blow molding assembly for blow molding, and after the blow molding of the second specification bottle is completed, the two second half molds are separated, and then the second specification bottle falls onto the second conveyor belt, and this is repeated, thereby realizing the demand of simultaneously producing two different specifications of plastic bottles by this production equipment through alternating blow molding of two molds of different specifications, solving the problem of overcapacity that may occur if a separate production line is opened for plastic bottles with smaller daily output demand, thereby causing increased costs and waste.

[0025] 2. The present invention realizes the simultaneous production of two plastic bottles of different specifications by setting PLC to perform sequential control and motion control on the first motor, the second motor and the electric slide rail, without the need for manual operations such as mold switching.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of a plastic bottle production equipment proposed in the present invention.

[0029] Figure 2 The present invention is a schematic structural diagram of a rotation mechanism in a plastic bottle production device.

[0030] Figure 3The present invention provides a structural schematic diagram of a plastic bottle production device and an extrusion mechanism in its production process.

[0031] In the figure: 1. injection molding machine; 2. hopper; 3. heating mechanism; 4. extrusion mechanism; 5. blow molding mechanism; 6. first blow molding component; 7. second blow molding component; 8. workbench; 9. first module; 10. second module; 11. first conveyor belt; 12. second conveyor belt; 13. baffle; 14. rotation mechanism; 15. electric slide rail; 16. slide table; 17. extrusion mechanism; 18. first half mold; 19. second half mold; 20. first control component; 21. second control component; 22. first motor; 23. first screw rod; 24. second motor; 25. second screw rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Embodiment 1

[0036] like Figure 1-3 As shown, the present invention provides a plastic bottle production device, including an injection molding machine 1, a blow molding mechanism 5, a workbench 8, a rotation mechanism 14 and an extrusion mechanism 17;

[0037] The injection molding machine 1 includes a hopper 2, a heating mechanism 3 and an extrusion mechanism 4;

[0038] The blow molding mechanism 5 includes a first blow molding component 6 and a second blow molding component 7, and the first blow molding component 6 and the second blow molding component 7 are symmetrically arranged on both sides of the extrusion mechanism 4;

[0039] The side of the workbench 8 close to the blow molding mechanism 5 is slidably connected with the first module 9 and the second module 10, and the first module 9 and the second module 10 are both provided with condensing pipes, and the side of the workbench 8 away from the blow molding mechanism 5 is respectively provided with a first conveyor belt 11 and a second conveyor belt 12, and the first conveyor belt 11 and the second conveyor belt 12 are respectively provided with baffles 13, and the workbench 8, the first conveyor belt 11 and the second conveyor belt 12 are sequentially arranged at intervals, one end of the first conveyor belt 11 is arranged at one side of the blow molding port of the second blow molding component 7, and one end of the second conveyor belt 12 is arranged at one side of the blow molding port of the first blow molding component 6;

[0040] The rotation mechanism 14 includes an electric slide rail 15 and a slide table 16, wherein the electric slide rail 15 is arranged on the workbench 8, and the slide table 16 is slidably mounted on the electric slide rail 15, and the slide table 16 is used to drive the first module 9 and the second module 10 to move between the first blow molding component 6, the extrusion mechanism 4 and the second blow molding component 7;

[0041] The extrusion mechanism 17 is used to control the opening and closing of the first die set 9 and the second die set 10;

[0042] In this embodiment, the first die set 9 includes two first half dies 18, the second die set 10 includes two second half dies 19, the extrusion mechanism 17 includes a first control assembly 20 and a second control assembly 21, the first control assembly 20 and the second control assembly 21 are installed on the slide 16 of the electric slide rail 15 at intervals, the first control assembly 20 includes a first motor 22 and a first screw rod 23, the two first half dies 18 are respectively mounted on both ends of the first screw rod 23 through a mounting member thread, the second control assembly 21 includes a second motor 24 and a second screw rod 25, the two second half dies 19 are respectively mounted on both ends of the second screw rod 25 through a mounting member thread, and the first screw rod 23 and the second screw rod 25 are both left-handed screw rods;

[0043] In this embodiment, the first motor 22, the second motor 24 and the electric slide rail 15 are respectively connected to the PLC, and the slide 16 drives the first module 9 and the second module 10 to slide on the workbench 8. When the first module 9 is arranged opposite to the extrusion nozzle of the extrusion mechanism 4, the second module 10 is arranged opposite to the blow molding port of the second blow molding component 7. When the slide 16 drives the first module 9 to move to one side of the blow molding port of the second blow molding component 7, the second module 10 is arranged opposite to the extrusion nozzle of the extrusion mechanism 4.

[0044] In this embodiment, the first screw rod 23 and the second screw rod 25 rotate forward, and the two first half molds 18 and the two second half molds 19 are respectively moved closer to each other and closed, and the first screw rod 23 and the second screw rod 25 rotate backward, and the two first half molds 18 and the two second half molds 19 are respectively separated;

[0045] In this embodiment, when the first module 9 moves toward the direction close to the extrusion mechanism 4, the two first half molds 18 are in a separated state. When the first module 9 moves to one side of the extrusion nozzle of the extrusion mechanism 4, the two first half molds 18 are closed, and then the parison is cut in the mold cavity of the first module 9. The slide 16 drives the first module 9 and the parison to move to the first blow molding assembly 6 for blow molding. During the movement, the two second half molds 19 are in a separated state. During the blow molding process of the first specification bottle body in the first module 9, the second module 10 cuts the parison in the mold cavity. After the blow molding of the first specification bottle body is completed, the two first half molds 18 are separated, and then the first specification bottle body falls onto the first conveyor belt 11 and passes through the first conveyor belt 11. The two first half molds 18 are then transferred to the next production link. At this time, the two first half molds 18 are in a separated state and move toward the extrusion mechanism 4. The second mold group 10 and the parison are moved to the second blow molding assembly 7 for blow molding. After the blow molding of the second specification bottle body is completed, the two second half molds 19 are separated, and then the second specification bottle body falls onto the second conveyor belt 12 and is transferred to the next production link through the second conveyor belt 12. This is repeated, so that the two molds of different specifications are rotated and blown alternately to meet the demand of the production equipment to produce two different specifications of plastic bottles at the same time, which solves the problem of overcapacity when a separate production line is opened for plastic bottles with a smaller daily output demand, thereby increasing costs and causing waste.

[0046] Embodiment 2

[0047] The present invention also provides a production process using the plastic bottle production equipment, the plastic bottle production process comprising the following steps:

[0048] S1. Raw material preparation: The mixed raw material is put into the hopper 2, the raw material is melted by heating and the shearing action of the feed screw, and a cylindrical plastic parison is formed from the extrusion nozzle of the extrusion mechanism 4;

[0049] S2. Take the preform of the first specification bottle: the slide 16 drives the first module 9 and the second module 10 to move to the first module 9 facing the extrusion nozzle of the extrusion mechanism 4, and the two first half molds 18 are closed;

[0050] S3. Blow molding of bottles of the first specification: the slide 16 drives the first mold group 9 to move to one side of the first blow molding assembly 6 for blow molding, the air forces the plastic in the first mold group 9 to form the shape of the mold, the first screw 23 rotates, the two first half molds 18 are separated, and the bottles of the first specification fall to the first conveyor belt 11, and at the same time the second mold group 10 moves to the second mold group 10 facing the extrusion nozzle of the extrusion mechanism 4, and the two second half molds 19 are closed;

[0051] S4. Blow molding of the second specification bottle body: the slide 16 drives the second mold assembly 10 to move to one side of the second blow molding assembly 7 for blow molding. After blow molding, the second screw 25 rotates, the two second half molds 19 are separated, and the second specification bottle body falls to the second conveyor belt 12.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A plastic bottle production equipment, characterized in that: include: An injection molding machine (1), the injection molding machine (1) comprising a hopper (2), a heating mechanism (3) and an extrusion mechanism (4); A blow molding mechanism (5), the blow molding mechanism (5) comprising a first blow molding component (6) and a second blow molding component (7), the first blow molding component (6) and the second blow molding component (7) being symmetrically arranged on both sides of the extrusion mechanism (4); A workbench (8), wherein a first mold group (9) and a second mold group (10) are slidably connected on a side of the workbench (8) close to the blow molding mechanism (5), and a first conveyor belt (11) and a second conveyor belt (12) are respectively provided on a side of the workbench (8) away from the blow molding mechanism (5); A rotation mechanism (14), the rotation mechanism (14) comprising an electric slide rail (15) and a slide table (16), the electric slide rail (15) being arranged on the workbench (8), the slide table (16) being slidably mounted on the electric slide rail (15), the slide table (16) being used to drive the first module (9) and the second module (10) to move between the first blow molding component (6), the extrusion mechanism (4) and the second blow molding component (7); A squeezing mechanism (17), wherein the squeezing mechanism (17) is used to control the opening and closing of the first die set (9) and the second die set (10).

2. A plastic bottle production equipment according to claim 1, characterized in that: The first conveyor belt (11) and the second conveyor belt (12) are respectively provided with baffles (13); the workbench (8), the first conveyor belt (11) and the second conveyor belt (12) are sequentially arranged at intervals; one end of the first conveyor belt (11) is arranged on one side of the blow molding port of the second blow molding component (7); and one end of the second conveyor belt (12) is arranged on one side of the blow molding port of the first blow molding component (6).

3. The plastic bottle production equipment according to claim 1, characterized in that: Condensation pipes are provided in both the first module (9) and the second module (10).

4. The plastic bottle production equipment according to claim 1, characterized in that: The first die set (9) comprises two first half dies (18), the second die set (10) comprises two second half dies (19), the extrusion mechanism (17) comprises a first control assembly (20) and a second control assembly (21), the first control assembly (20) and the second control assembly (21) are installed on a slide table (16) of an electric slide rail (15) at intervals, the first control assembly (20) comprises a first motor (22) and a first screw rod (23), the two first half dies (18) are respectively mounted on two ends of the first screw rod (23) through a mounting member thread, the second control assembly (21) comprises a second motor (24) and a second screw rod (25), and the two second half dies (19) are respectively mounted on two ends of the second screw rod (25) through a mounting member thread.

5. The plastic bottle production equipment according to claim 4, characterized in that: The first screw rod (23) and the second screw rod (25) are both left-hand and right-hand screw rods.

6. The plastic bottle production equipment according to claim 4, characterized in that: The first motor (22), the second motor (24) and the electric slide rail (15) are respectively connected to a PLC.

7. A production process using the plastic bottle production equipment according to any one of claims 1 to 6, characterized in that: The plastic bottle production process comprises the following steps: S1. Raw material preparation: The mixed raw material is put into the hopper (2), the raw material is melted by heating and shearing action of the feed screw, and a cylindrical plastic parison is formed from the extrusion nozzle of the extrusion mechanism (4); S2. Taking the preform of the first specification bottle: the slide (16) drives the first module (9) and the second module (10) to move to the first module (9) facing the extrusion nozzle of the extrusion mechanism (4), and the two first half molds (18) are closed; S3. Blow molding of bottles of the first specification: the slide (16) drives the first mold group (9) to move to one side of the first blow molding assembly (6) for blow molding, and the air forces the plastic in the first mold group (9) to form the shape of the mold, the first screw (23) rotates, the two first half molds (18) separate, and the first specification bottle falls onto the first conveyor belt (11), and at the same time the second mold group (10) moves to the second mold group (10) facing the extrusion nozzle of the extrusion mechanism (4), and the two second half molds (19) close together; S4. Blow molding of the second specification bottle body: the slide (16) drives the second mold assembly (10) to move to one side of the second blow molding assembly (7) for blow molding. After blow molding, the second screw (25) rotates, the two second half molds (19) are separated, and the second specification bottle body falls onto the second conveyor belt (12).

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