High-barrier plastic bottle production process and processing equipment

Abstract

The high-barrier plastic bottle production technology comprises the steps that S1, a special production device for the high-barrier plastic bottle is adopted, and the special production device comprises a device body, an extrusion molding assembly, a cut-off assembly, a mold assembly, a transferring mechanism, a blow molding assembly, a cutting assembly and a conveying assembly; s2, high-barrier plastic bottle production raw materials enter a screw extruder from a feeding hopper of an extrusion molding assembly and are extruded into a forming mold at a high temperature, and a hollow blank pipe is obtained; s3, the blank pipe enters the device body, the mold assembly receives the blank pipe, the cutting assembly cuts off the blank pipe, and then the transfer mechanism transfers the mold assembly to the blow molding assembly for blow molding; and S4, the heads and tails of the plastic bottles obtained after blow molding are removed through a cutting assembly, the high-barrier plastic bottles are obtained, and the high-barrier plastic bottles are conveyed to a packaging procedure through a conveying assembly to be packaged. According to the equipment, the high-barrier plastic bottles can be subjected to extrusion molding, blow molding, cutting and transferring integrated machining, and the production efficiency of the high-barrier plastic bottles is improved.

Description

Technical Field

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

[0002] High-barrier plastic bottles are a new type of packaging material. Their main feature is that they can effectively block the penetration of substances such as oxygen, moisture, and odor. They are widely used in the fields of food, cosmetics, and medicine. Compared with traditional plastic bottles, high-barrier plastic bottles can not only maintain the freshness and quality of products, but also reduce packaging costs and reduce environmental pollution.

[0003] High barrier plastic bottles are usually composed of three layers: the outer layer is high-density polyethylene, the middle layer is adhesive material, and the inner layer is synthetic polymer EVOH (ethylene-vinyl alcohol copolymer). EVOH is a product that combines the processing properties of ethylene polymers and the barrier effect of vinyl alcohol polymers, and has excellent barrier properties, processing properties and mechanical properties.

[0004] In the prior art, when producing high-barrier plastic bottles, the raw materials are usually extruded into a mold, and blow-molded using a blow molding device to obtain a semi-finished high-barrier plastic bottle. The semi-finished product is then transported to other cutting devices to cut the bottle mouth. The operation is relatively cumbersome, and therefore, the relevant technology needs to be improved and designed. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a high barrier plastic bottle production process and processing equipment.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A high barrier plastic bottle production process, comprising the following steps:

[0007] S1. A special production device for high-barrier plastic bottles is used, which includes a device body, an extrusion assembly for extruding raw materials for high-barrier plastic bottles into embryo tubes, a cutting assembly for cutting the embryo tubes, a mold assembly for receiving the cut embryo tubes, a transfer mechanism for transferring the mold assembly, a blow molding assembly for blow molding the embryo tubes in the mold assembly, a cutting assembly for removing the heads and tails of the blow-molded high-barrier plastic bottles, and a conveying assembly for conveying the high-barrier plastic bottles to the packaging process;

[0008] S2, feeding the raw materials for high-barrier plastic bottle production into the screw extruder from the feeding hopper of the extrusion component, and extruding them into the molding die at high temperature to obtain a hollow embryo tube;

[0009] S3, the embryo tube enters the device body, the mold assembly receives the embryo tube, the cutting assembly cuts the embryo tube, and then the transfer mechanism transfers the mold assembly to the blow molding assembly for blow molding;

[0010] S4. The blow-molded plastic bottles are cut off from the head and tail by a cutting assembly to obtain high-barrier plastic bottles. The conveying assembly transfers the high-barrier plastic bottles to a packaging process for packaging.

[0011] By adopting the above technical solution, the present application can perform integrated processing of extrusion, blow molding, cutting and transfer on high-barrier plastic bottles, thereby improving the production efficiency of high-barrier plastic bottles.

[0012] The present application also discloses a processing equipment used in the production process of high-barrier plastic bottles, wherein the extrusion assembly includes a screw extruder fixed to the top of the device body, a feeding hopper fixed to the top of the screw extruder near one end thereof, and a molding die fixed to the top of the device body at a position away from the feeding hopper. An extrusion screw is arranged in the extrusion barrel of the screw extruder, and the bottom of the molding die extends into the device body. A connecting hole connected to the end of the screw extruder away from the feeding hopper and a molding cavity connected to the bottom of the molding die are arranged in the molding die, and a core mold is fixed to the inner wall of the molding cavity near the connecting hole.

[0013] By adopting the above technical scheme, the raw materials for producing high-barrier plastic bottles are added into the screw extruder from the feeding hopper, the screw of the screw extruder cooperates with the extrusion barrel of the screw extruder to extrude the raw materials into the molding mold, and the molding cavity cooperates with the core mold to perform the embryo tube molding operation.

[0014] Furthermore, the gap between the screw of the screw extruder and the inner wall of the extrusion barrel of the screw extruder decreases from the feeding hopper to the forming die.

[0015] By adopting the above technical solution, the extrusion pressure of the high barrier plastic bottle is guaranteed to produce the embryo tube, which is convenient for the subsequent blow molding of the blow molding component.

[0016] Furthermore, the mold assembly, the blow molding assembly, and the conveying assembly are arranged in sequence from the screw extruder toward the side away from the screw extruder, and the arrangement direction of the three is perpendicular to the length direction of the screw extruder. The mold assembly includes a first mold and a second mold, and the sides of the first mold and the second mold close to each other are both provided with a mold groove that cooperates with the molded high-barrier plastic bottle. The transfer mechanism includes a driving assembly for driving the first mold and the second mold away from each other and a translation assembly for driving the first mold and the second mold to move toward a side close to or away from the conveying assembly.

[0017] By adopting the above technical solution, the driving component can drive the first mold and the second mold to move closer to or away from each other, so that the model groove of the first mold and the model groove of the second mold cooperate and receive the cut embryo tube, and the translation component transfers the cut embryo tube to the blow molding component for blow molding.

[0018] Furthermore, the driving assembly includes a movable plate arranged in the device body, a mounting plate fixed on the movable plate, a first screw rotatably mounted on the mounting plate, a first guide rod fixed on the mounting plate, and a first motor fixed on the mounting plate and used to drive the first screw. A first connecting block is fixed to the side of the first mold close to the movable plate, and a second connecting block is fixed to the side of the second mold close to the movable plate. The first guide rod penetrates the first connecting block and the second connecting block and slides together. The first screw is provided with threads with equal pitches and opposite rotation directions at both ends. The first connecting block and the second connecting block are symmetrically located on the two sections of the thread of the first screw and are threadedly connected. The translation assembly is used to drive the movable plate to reciprocate between the conveying assembly and the extrusion assembly.

[0019] By adopting the above technical solution, the first motor drives the first screw to rotate after it starts working. Since the first connecting block and the second connecting block are respectively threadedly connected to the two sections of the first screw, the first guide rod and the first connecting block and the second connecting block are slidably matched, so that the first connecting block and the second connecting block are close to or away from each other, and the first mold and the second mold are close to or away from each other, so that the first mold and the second mold catch the embryo tube, so that the blow molding assembly can be blow-molded later.

[0020] Furthermore, the translation assembly includes a second guide rod fixed between the inner walls on both sides of the device body, a second screw rod rotatably installed on the inner wall of the device body, a driven gear fixedly sleeved on the second screw rod, a second motor fixed on the inner wall of the device body, and a driving gear fixed to the output end of the second motor and meshing with the driven gear, the second screw rod penetrates the movable plate and is threadedly connected, and the second guide rod penetrates the movable plate and is slidably fitted.

[0021] By adopting the above technical solution, the second motor drives the second screw to rotate after working. Since the second screw is threadedly connected to the movable plate, the second guide rod and the movable plate slide together, so that the movable plate, the first mold and the second mold can reciprocate between the conveying component and the extrusion component.

[0022] Furthermore, the cutting assembly includes a fixed plate fixed on the top wall of the device body, a cross bar fixed on the fixed plate, an electric push rod fixed on one side of the fixed plate, a moving plate slidably mounted on the cross bar and fixed to the end of the output rod of the electric push rod, and an L-shaped cutter fixed to the bottom of the moving plate, and the top of the cutting blade of the L-shaped cutter is flush with the bottom of the forming mold.

[0023] By adopting the above technical solution, the electric push rod drives the moving plate to move after working, so that the L-shaped cutter moves toward the side close to or away from the forming mold, so that the cutting edge of the L-shaped cutter can cut the embryo tube after extrusion.

[0024] Furthermore, the blow molding assembly includes an L-shaped plate fixed to the top of the device body, a first cylinder fixed to the bottom of the horizontal part of the L-shaped plate, a placement plate fixed to the lower end of the piston rod of the first cylinder, and a blow molding tube fixed to the bottom of the placement plate and connected to an external air source, and a through hole for the blow molding tube to pass through is provided at the top of the device body.

[0025] By adopting the above technical solution, the first cylinder drives the placement plate to move after working, so that the blow molding tube moves up and down. After the blow molding tube descends into the embryo tube, the embryo tube can be blow molded under the cooperation of the model grooves of the first mold and the second mold.

[0026] Furthermore, a side opening is provided on one side of the device body, and the cutting assembly includes a vertical plate fixed on the inner bottom wall of the device body, a second cylinder fixed on the vertical plate, a connecting plate fixed to the end of the piston rod of the second cylinder, and an upper cutter and a lower cutter fixed to a side of the connecting plate close to the device body, wherein the width and length of the connecting plate are respectively smaller than the width and length of the side opening.

[0027] By adopting the above technical solution, the second cylinder drives the connecting plate to move after working, and the upper cutter cooperates with the lower cutter to remove the head and tail of the high-barrier plastic bottle transmitted to the cutting station.

[0028] Furthermore, the conveying assembly is a belt transmission assembly, the top of the conveyor belt of the conveying assembly is arranged adjacent to the bottom of the first mold and the second mold, and a retaining frame is fixed in the body of the device for maintaining the stability of the high-barrier plastic bottle during the process of removing the head and tail.

[0029] By adopting the above technical solution, after the first mold is separated from the second mold, the high-barrier plastic bottle falls onto the conveyor belt of the conveying assembly, and the retaining frame ensures the stability of the high-barrier plastic bottle during the cutting process.

[0030] In summary, the present invention has the following beneficial effects:

[0031] 1. This application can perform extrusion, blow molding, cutting, and transfer processing on high-barrier plastic bottles, thereby improving the production efficiency of high-barrier plastic bottles;

[0032] 2. In this application, the raw materials for producing high-barrier plastic bottles are added to the screw extruder from the feeding hopper, the screw of the screw extruder cooperates with the extrusion barrel of the screw extruder to extrude the raw materials into the molding die, and the molding cavity cooperates with the core die to perform the embryo tube molding operation;

[0033] 3. In the present application, the first motor drives the first screw to rotate after operation. Since the first connecting block and the second connecting block are respectively threadedly connected to the two sections of the first screw, the first guide rod and the first connecting block and the second connecting block are slidably matched, so that the first connecting block and the second connecting block are moved closer to or farther away from each other, and the first mold and the second mold are moved closer to or farther away from each other, so that the first mold and the second mold can catch the embryo tube so that the blow molding assembly can be blow-molded later. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the embodiment of the present invention for highlighting the interior of the device body;

[0036] Figure 3 It is a structural schematic diagram for highlighting the transfer mechanism in an embodiment of the present invention;

[0037] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0038] In the figure: 1, device body; 11, through hole; 12, side opening; 2, extrusion assembly; 21, screw extruder; 211, extrusion screw; 22, feeding hopper; 23, molding die; 231, connecting hole; 232, molding cavity; 2321, core mold; 3, cutting assembly; 31, fixing plate; 32, cross bar; 33, electric push rod; 34, moving plate; 35, L-shaped cutter; 4, mold assembly; 41, first mold; 411, first connecting block; 42, second mold; 421, second connecting block; 43, mold slot; 5, transfer mechanism; 5 1. Driving assembly; 511. movable plate; 512. mounting plate; 513. first screw rod; 514. first guide rod; 515. first motor; 52. translation assembly; 521. second guide rod; 522. second screw rod; 523. driven gear; 524. second motor; 525. driving gear; 6. blow molding assembly; 61. L-shaped plate; 62. first cylinder; 63. placement plate; 64. blow molding tube; 7. cutting assembly; 71. vertical plate; 72. second cylinder; 73. connecting plate; 74. upper cutter; 75. lower cutter; 8. conveying assembly. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0040] like Figure 1-4 As shown, the embodiment of the present application discloses a high barrier plastic bottle production process, comprising the following steps:

[0041] S1. A special production device for high-barrier plastic bottles is used, which includes a device body 1, an extrusion assembly 2 for extruding raw materials for high-barrier plastic bottles into embryo tubes, a cutting assembly 3 for cutting the embryo tubes, a mold assembly 4 for receiving the cut embryo tubes, a transfer mechanism 5 for transferring the mold assembly 4, a blow molding assembly 6 for blow molding the embryo tubes in the mold assembly 4, a cutting assembly 7 for removing the head and tail of the blow-molded high-barrier plastic bottles (cutting off the protruding parts at the bottom of the high-barrier plastic bottles), and a conveying assembly 8 for conveying the high-barrier plastic bottles to the packaging process;

[0042] S2, the raw materials for producing high-barrier plastic bottles are fed into the screw extruder 21 from the feeding hopper 22 of the extrusion assembly 2, and extruded into the molding die 23 at high temperature to obtain a hollow embryo tube;

[0043] S3, the embryo tube enters the device body 1, the mold assembly 4 receives the embryo tube, the cutting assembly 3 cuts the embryo tube, and then the transfer mechanism 5 transfers the mold assembly 4 to the blow molding assembly 6 for blow molding;

[0044] S4. The blow-molded plastic bottles are cut off from the head and tail by the cutting assembly 7 to obtain high-barrier plastic bottles. The conveying assembly 8 transports the high-barrier plastic bottles to the packaging process for packaging.

[0045] The present application can perform extrusion molding, blow molding, cutting, and transfer processing on high-barrier plastic bottles in an integrated manner, thereby improving the production efficiency of high-barrier plastic bottles.

[0046] The present embodiment also discloses a processing device for high-barrier plastic bottles, wherein the extrusion assembly 2 comprises a screw extruder 21 fixed to the top of the device body 1, a feeding hopper 22 fixed to the top of the screw extruder 21 near one end thereof, and a molding die 23 fixed to the top of the device body 1 at a position away from the feeding hopper 22. An extrusion screw 211 is arranged in the extrusion barrel of the screw extruder 21, and the bottom of the molding die 23 extends into the device body 1. A connecting hole 231 connected to the end of the screw extruder 21 away from the feeding hopper 22 and a molding cavity 232 connected to the bottom of the molding die 23 are arranged in the molding die 23, and a core mold 232 is fixed to the inner wall of the molding cavity 232 near the connecting hole 231.

[0047] The raw materials for producing high-barrier plastic bottles are added to the screw extruder 21 from the feeding hopper 22. The screw of the screw extruder 21 cooperates with the extrusion barrel of the screw extruder 21 to extrude the raw materials into the molding die 23. The molding cavity 232 cooperates with the core mold 2321 to perform the embryo tube molding operation.

[0048] The gap between the screw of the screw extruder 21 and the inner wall of the extrusion barrel of the screw extruder 21 decreases from the hopper 22 to the molding die 23. The extrusion pressure of the high barrier plastic bottle is guaranteed to produce the embryo tube, which is convenient for the subsequent blow molding assembly 6 to perform blow molding.

[0049] The mold assembly 4, the blow molding assembly 6, and the conveying assembly 8 are sequentially arranged from the screw extruder 21 toward the side away from the screw extruder 21, and the arrangement direction of the three is perpendicular to the length direction of the screw extruder 21. The mold assembly 4 includes a first mold 41 and a second mold 42. The first mold 41 and the second mold 42 are both provided with a mold groove 43 that matches the high barrier plastic bottle after molding on the side close to each other. The transfer mechanism 5 includes a driving assembly 51 for driving the first mold 41 and the second mold 42 to move away from each other and a translation assembly 52 for driving the first mold 41 and the second mold 42 to move toward or away from the conveying assembly 8. The driving assembly 51 can drive the first mold 41 and the second mold 42 to move toward or away from each other, so that the mold groove 43 of the first mold 41 and the mold groove 43 of the second mold 42 match and receive the cut embryo tube, and the translation assembly 52 transfers the cut embryo tube to the blow molding assembly 6 for blow molding.

[0050] The driving assembly 51 includes a movable plate 511 arranged in the device body 1, a mounting plate 512 fixed on the movable plate 511, a first screw 513 rotatably mounted on the mounting plate 512, a first guide rod 514 fixed on the mounting plate 512, and a first motor 515 fixed on the mounting plate 512 and used to drive the first screw 513. A first connecting block 411 is fixed to a side of the first mold 41 close to the movable plate 511, and a second connecting block 421 is fixed to a side of the second mold 42 close to the movable plate 511. The first guide rod 514 penetrates the first connecting block 411 and the second connecting block 421 and slides together. The first screw 513 is provided with threads with equal pitches and opposite rotation directions at both ends. The first connecting block 411 and the second connecting block 421 are symmetrically located on two sections of the thread of the first screw 513 and are threadedly connected. The translation assembly 52 is used to drive the movable plate 511 to reciprocate between the conveying assembly 8 and the extrusion assembly 2.

[0051] After the first motor 515 starts working, it drives the first screw 513 to rotate. Since the first connecting block 411 and the second connecting block 421 are respectively threadedly connected to the two sections of the first screw 513, the first guide rod 514 and the first connecting block 411 and the second connecting block 421 are slidably matched, so that the first connecting block 411 and the second connecting block 421 are close to or away from each other, and the first mold 41 and the second mold 42 are close to or away from each other, so that the first mold 41 and the second mold 42 can receive the embryo tube, so that the blow molding component 6 can be blow-molded later.

[0052] The translation assembly 52 includes a second guide rod 521 fixed between the inner walls on both sides of the device body 1, a second screw rod 522 rotatably mounted on the inner wall of the device body 1, a driven gear 523 fixedly sleeved on the second screw rod 522, a second motor 524 fixed on the inner wall of the device body 1, and a driving gear 525 fixed to the output end of the second motor 524 and meshing with the driven gear 523, the second screw rod 522 penetrates the movable plate 511 and is threadedly connected, and the second guide rod 521 penetrates the movable plate 511 and is slidably fitted.

[0053] After the second motor 524 starts working, it drives the driving gear 525, the driven gear 523 and the second screw 522 to rotate. Since the second screw 522 is threadedly connected with the movable plate 511, the second guide rod 521 and the movable plate 511 slide together, so that the movable plate 511, the first mold 41 and the second mold 42 can reciprocate between the conveying component 8 and the extrusion component 2.

[0054] The cutting assembly 3 includes a fixed plate 31 fixed on the top wall of the device body 1, a cross bar 32 fixed on the fixed plate 31, an electric push rod 33 fixed on one side of the fixed plate 31, a moving plate 34 slidably sleeved on the cross bar 32 and fixed to the end of the output rod of the electric push rod 33, and an L-shaped cutter 35 fixed to the bottom of the moving plate 34, and the top of the cutting edge of the L-shaped cutter 35 is flush with the bottom of the forming mold 23. After the electric push rod 33 works, it drives the moving plate 34 to move, so that the L-shaped cutter 35 moves toward or away from the forming mold 23, so that the cutting edge of the L-shaped cutter 35 cuts the embryo tube after extrusion molding.

[0055] The blow molding assembly 6 includes an L-shaped plate 61 fixed to the top of the device body 1, a first cylinder 62 fixed to the bottom of the horizontal portion of the L-shaped plate 61, a placement plate 63 fixed to the lower end of the piston rod of the first cylinder 62, and a blow molding tube 64 fixed to the bottom of the placement plate 63 and connected to an external air source. The top of the device body 1 is provided with a through hole 11 for the blow molding tube 64 to pass through. After the first cylinder 62 is in operation, it drives the placement plate 63 to move, so that the blow molding tube 64 moves up and down. After the blow molding tube 64 descends into the embryo tube, the embryo tube can be blow molded under the cooperation of the first mold 41 and the mold groove 43 of the second mold 42.

[0056] A side opening 12 is provided on one side of the device body 1, and the cutting assembly 7 includes a vertical plate 71 fixed on the inner bottom wall of the device body 1, a second cylinder 72 fixed on the vertical plate 71, a connecting plate 73 fixed to the piston rod end of the second cylinder 72, and an upper cutter 74 and a lower cutter 75 fixed to a side of the connecting plate 73 close to the device body 1, wherein the width and length of the connecting plate 73 are respectively smaller than the width and length of the side opening 12. After the second cylinder 72 is working, it drives the connecting plate 73 to move, and the upper cutter 74 cooperates with the lower cutter 75 to remove the head and tail of the high-barrier plastic bottle transmitted to the cutting station.

[0057] The conveyor assembly 8 is a belt transmission assembly, and the top of the conveyor belt of the conveyor assembly 8 is arranged near the bottom of the first mold 41 and the second mold 42. A retainer (not shown in the figure) is fixed in the device body 1 to maintain the stability of the high-barrier plastic bottle during the head and tail removal process. After the first mold 41 and the second mold 42 are separated, the high-barrier plastic bottle falls onto the conveyor belt of the conveyor assembly 8, and the retainer ensures the stability of the high-barrier plastic bottle during the cutting process.

[0058] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high barrier plastic bottle production process, characterized in that: The steps include: S1. A special production device for high-barrier plastic bottles is used, the special production device comprising a device body (1), an extrusion assembly (2) for extruding raw materials for high-barrier plastic bottles into embryo tubes, a cutting assembly (3) for cutting the embryo tubes, a mold assembly (4) for receiving the cut embryo tubes, a transfer mechanism (5) for transferring the mold assembly (4), a blow molding assembly (6) for blow molding the embryo tubes in the mold assembly (4), a cutting assembly (7) for removing the heads and tails of the blow-molded high-barrier plastic bottles, and a conveying assembly (8) for conveying the high-barrier plastic bottles to a packaging process; S2, feeding the raw materials for producing high-barrier plastic bottles into the screw extruder (21) from the feeding hopper (22) of the extrusion assembly (2), and extruding them into the molding die (23) at high temperature to obtain a hollow embryo tube; S3, the embryo tube enters the device body (1), the mold assembly (4) receives the embryo tube, the cutting assembly (3) cuts the embryo tube, and then the transfer mechanism (5) transfers the mold assembly (4) to the blow molding assembly (6) for blow molding; S4. The plastic bottles after blow molding are cut off from the head and tail by a cutting assembly (7) to obtain high-barrier plastic bottles. The conveying assembly (8) transports the high-barrier plastic bottles to a packaging process for packaging.

2. A processing equipment used in the production process of high barrier plastic bottles according to claim 1, characterized in that: The extrusion assembly (2) comprises a screw extruder (21) fixed to the top of the device body (1), a feeding hopper (22) fixed to the top of the screw extruder (21) at a position close to one end thereof, and a molding die (23) fixed to the top of the device body (1) at a position away from the feeding hopper (22). An extrusion screw (211) is arranged in the extrusion barrel of the screw extruder (21), the bottom of the molding die (23) extends into the device body (1), a connecting hole (231) connected to the end of the screw extruder (21) away from the feeding hopper (22) and a molding cavity (232) connected to the bottom of the molding die (23) are arranged in the molding die (23), and a core die (2321) is fixed to the inner wall of the molding cavity (232) at a position close to the connecting hole (231).

3. The processing equipment for producing high barrier plastic bottles according to claim 2 is characterized by: The gap between the screw of the screw extruder (21) and the inner wall of the extrusion barrel of the screw extruder (21) decreases from the feeding hopper (22) to the molding die (23).

4. The processing equipment for producing high barrier plastic bottles according to claim 2 is characterized in that: The mold assembly (4), the blow molding assembly (6), and the conveying assembly (8) are arranged in sequence from the screw extruder (21) toward a side away from the screw extruder (21), and the arrangement direction of the three is perpendicular to the length direction of the screw extruder (21). The mold assembly (4) includes a first mold (41) and a second mold (42), and the sides of the first mold (41) and the second mold (42) close to each other are both provided with a mold groove (43) that matches the molded high-barrier plastic bottle. The transfer mechanism (5) includes a driving assembly (51) for driving the first mold (41) and the second mold (42) to move away from each other, and a translation assembly (52) for driving the first mold (41) and the second mold (42) to move toward or away from the conveying assembly (8).

5. The processing equipment for producing high barrier plastic bottles according to claim 4 is characterized in that: The driving assembly (51) comprises a movable plate (511) arranged in the device body (1), a mounting plate (512) fixed on the movable plate (511), a first screw rod (513) rotatably mounted on the mounting plate (512), a first guide rod (514) fixed on the mounting plate (512), and a first motor (515) fixed on the mounting plate (512) and used for driving the first screw rod (513); a first connecting block (411) is fixed on one side of the first mold (41) close to the movable plate (511); and a first connecting block (411) is fixed on one side of the second mold (42) close to the movable plate (511). A second connecting block (421) is fixed to one side of the movable plate (511); the first guide rod (514) penetrates the first connecting block (411) and the second connecting block (421) and slides together; the first screw rod (513) is provided with threads with equal pitches and opposite rotation directions at both ends; the first connecting block (411) and the second connecting block (421) are symmetrically located on two sections of the thread of the first screw rod (513) and are threadedly connected; the translation assembly (52) is used to drive the movable plate (511) to reciprocate between the conveying assembly (8) and the extrusion assembly (2).

6. The processing equipment for producing high barrier plastic bottles according to claim 5 is characterized by: The translation assembly (52) comprises a second guide rod (521) fixed between the inner walls on both sides of the device body (1), a second screw rod (522) rotatably mounted on the inner wall of the device body (1), a driven gear (523) fixedly sleeved on the second screw rod (522), a second motor (524) fixed on the inner wall of the device body (1), and a driving gear (525) fixed to the output end of the second motor (524) and meshing with the driven gear (523), the second screw rod (522) passes through the movable plate (511) and is threadedly connected, and the second guide rod (521) passes through the movable plate (511) and is slidably fitted.

7. The processing equipment for producing high barrier plastic bottles according to claim 6 is characterized by: The cutting assembly (3) comprises a fixed plate (31) fixed to the inner top wall of the device body (1), a cross bar (32) fixed to the fixed plate (31), an electric push rod (33) fixed to one side of the fixed plate (31), a moving plate (34) slidably sleeved on the cross bar (32) and fixed to the end of the output rod of the electric push rod (33), and an L-shaped cutter (35) fixed to the bottom of the moving plate (34), wherein the top of the cutting blade of the L-shaped cutter (35) is flush with the bottom of the forming mold (23).

8. The processing equipment for producing high barrier plastic bottles according to claim 6 is characterized by: The blow molding assembly (6) comprises an L-shaped plate (61) fixed to the top of the device body (1), a first cylinder (62) fixed to the bottom surface of the horizontal portion of the L-shaped plate (61), a placement plate (63) fixed to the lower end of the piston rod of the first cylinder (62), and a blow molding tube (64) fixed to the bottom of the placement plate (63) and connected to an external air source, and a through hole (11) for the blow molding tube (64) to pass through is provided at the top of the device body (1).

9. The processing equipment for producing high barrier plastic bottles according to claim 6 is characterized by: A side opening (12) is provided on one side of the device body (1), and the cutting assembly (7) comprises a vertical plate (71) fixed on the inner bottom wall of the device body (1), a second cylinder (72) fixed on the vertical plate (71), a connecting plate (73) fixed to the end of the piston rod of the second cylinder (72), and an upper cutter (74) and a lower cutter (75) fixed to one side of the connecting plate (73) close to the device body (1), wherein the width and length of the connecting plate (73) are respectively smaller than the width and length of the side opening (12).

10. The processing equipment for producing high barrier plastic bottles according to claim 6, characterized in that: The conveying assembly (8) is a belt transmission assembly, the top of the conveying belt of the conveying assembly (8) is arranged adjacent to the bottom of the first mold (41) and the second mold (42), and a retaining frame for maintaining the stability of the high-barrier plastic bottle during the process of removing the head and tail is fixed in the device body (1).

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