Plastic bottle processing die and processing method thereof

Abstract

The application belongs to the technical field of plastic bottle processing, and particularly relates to a plastic bottle processing mold and a processing method thereof. In view of the fact that single cooling heat exchange is insufficient in the existing blow molding demolding, which leads to insufficient bottle body shaping, uneven shrinkage, adhesion to the mold cavity, deformation, scratches and even breakage during demolding, the following scheme is proposed, which comprises a blow molding machine body, a processing bin arranged on one side of the blow molding machine body, a plurality of moving rails arranged in the processing bin, and two outer modules arranged oppositely on the moving rails. The disclosed plastic bottle processing mold and processing method have the advantages that the high-speed cooling airflow is input into the interiors of the two mold bodies by means of the airflow separation assembly, so that a high-speed airflow curtain is formed between the inner walls of the two mold bodies and the outer wall of the plastic bottle, which cuts off and isolates the adhesion of the plastic bottle to the mold body and further cools the plastic bottle, greatly improving the solidification effect of the plastic bottle and improving the quality of the finished product.

Description

Technical Field

[0001] This invention relates to the field of plastic bottle processing technology, and in particular to a plastic bottle processing mold and its processing method. Background Technology

[0002] Plastic bottles are hollow containers made from thermoplastic plastics such as polyethylene and polyethylene terephthalate through blow molding. With the deep integration of intelligent manufacturing equipment, blow molding production lines can now monitor temperature, pressure, and wall thickness distribution in real time through sensors and automated control systems, significantly improving product consistency and production capacity. At the same time, additive manufacturing equipment technology provides a new path for rapid prototyping verification of blow molding molds and conformal cooling channel design, greatly shortening the development cycle and reducing trial and error costs. In addition, blow molding is highly adaptable to recycled plastics. Combined with a closed-loop system for recycling plastic waste, post-consumer bottle flakes can be re-granulated and mixed into new materials to produce recycled bottles, which reduces the consumption of primary petroleum and promotes the transformation of the packaging industry towards a circular economy model.

[0003] Existing blow molding demolding methods mostly use single cooling, which has insufficient heat exchange efficiency. This results in insufficient shaping and uneven shrinkage of the bottle body when the mold is opened, causing it to stick to the mold cavity wall. During demolding, pulling can easily cause the bottle body to deform, have uneven wall thickness, surface scratches, or even break. At the same time, it accelerates mold wear and seriously reduces the pass rate and equipment stability. Summary of the Invention

[0004] This invention discloses a plastic bottle processing mold and its processing method, aiming to solve the technical problems in the prior art where insufficient cooling heat exchange in existing blow molding demolding leads to inadequate bottle shaping, uneven shrinkage, adhesion to the mold cavity, and easy deformation, scratches, or even breakage during demolding.

[0005] The present invention provides a plastic bottle processing mold, comprising: The blow molding machine body has a processing chamber on one side. Multiple moving rails are arranged inside the processing chamber, and two external modules are arranged opposite each other on the multiple moving rails; Two airflow separation components are respectively disposed on the corresponding external module, and each of the two airflow separation components includes a blower box; Two mold bodies are respectively set on one side of the corresponding blower box, and multiple air inlets are opened inside the two mold bodies; Two cooling components are respectively disposed on the corresponding external module, and each of the two cooling components includes a water tank.

[0006] In a preferred embodiment, the airflow separation component further includes: Two limiting plates, one end of each limiting plate is set inside the corresponding sliding slot hole of the outer module, and the other end of each limiting plate is fixedly connected to the same blower box. Multiple telescopic springs are provided, with one end of each spring being disposed at one end of a corresponding limiting plate, and the other end of each spring being fixedly connected to the inner wall of the outer module.

[0007] In a preferred embodiment, the airflow separation component further includes: A sliding plate is located inside the blower box; Multiple plugs are provided, with one end of each plug evenly spaced on one side of the sliding plate, and the other end of each plug passing through the blower box and located inside the corresponding air inlet of the mold body.

[0008] In a preferred embodiment, the airflow separation component includes: Multiple air-gathering cylinders are arranged at equal intervals inside the outer module; Multiple fixed venting cylinders are respectively installed inside the corresponding air-gathering cylinder, and multiple outer layer holes are equally spaced on the outer wall of the multiple fixed venting cylinders.

[0009] In a preferred embodiment, the airflow separation component further includes: Multiple jet pipes are arranged on one side of the blower box. One end of each jet pipe passes through the blower box and is located inside the sliding hole corresponding to the sliding plate. The other end of each jet pipe slides inside the corresponding fixed vent. Multiple air outlets are equally spaced on the outer wall of one end of each jet pipe. Two electric telescopic rods are equally spaced on one side of the blower box, and the telescopic ends of the two electric telescopic rods are fixedly connected to the same sliding plate.

[0010] In a preferred embodiment, the airflow separation component includes: Multiple connecting blocks are respectively disposed inside the corresponding fixed ventilation cylinder. The multiple connecting blocks are connected to the other end of the corresponding jet pipe. Multiple inner layer holes are equally spaced on the outer wall of the multiple connecting blocks. Multiple fixing frames are equally spaced on the outer module, and the same compression cylinder is installed inside every two fixing frames. Multiple gas supply pipes, one end of each gas supply pipe is disposed on one side of a corresponding compression cylinder, and the other end of each gas supply pipe is respectively inserted into one end of a corresponding gas gathering cylinder; Multiple air pumps are installed on corresponding compression cylinders, and the air pumps are connected to the interior of the corresponding compression cylinders.

[0011] In a preferred embodiment, the cooling assembly further includes: The water inlet is located on the water tank; A heat exchanger is located on the lower side of the outer module, and a fixed output pipe is provided on one side of the heat exchanger; A fixed input pipe is provided on one side of the water tank, and an input water pump is provided on the outer wall of the fixed input pipe.

[0012] In a preferred embodiment, the cooling assembly further includes: A sliding input tube, one end of which is located inside the fixed input tube, and the other end of which is inserted into the water inlet hole on the upper side of the mold body; A sliding output tube, one end of which is located inside the fixed output tube, and the other end of which is inserted into the water outlet hole opened on the lower side of the mold body; A return pipe is installed on the water tank and heat exchanger, and a return water pump is installed on the outer wall of the return pipe.

[0013] In a preferred embodiment, it also includes: A blow molding head is mounted on the blow molding machine body, which also has a control panel.

[0014] A method for processing plastic bottles, using a plastic bottle processing mold as described above, includes the following steps: Step 1: When using the device, first control the two external modules to move relative to each other along the moving rail using the control panel, and finally merge them. Step 2: After the two outer modules are combined, the heated preform is placed inside the two combined mold bodies. Then, the blow molding head is controlled by the control panel to inject high-pressure gas into the preform, so that the plastic adheres to the inner wall of the two combined mold bodies, thus completing the blow molding. Step 3: After blow molding is completed, the cooling components are turned on to exchange heat between the flowing water and the combined mold body, thereby cooling the blow-molded plastic bottle. Step 4: During demolding, the two outer modules move away from each other. At the same time, cold air is injected into the merged mold body through the airflow detachment component to help the plastic bottle detach from the mold body. Finally, the detached plastic bottle is collected.

[0015] As can be seen from the above, the plastic bottle processing mold provided by the present invention utilizes an airflow separation component to input high-speed cooling airflow into the interior of two mold bodies, thereby forming a high-speed air curtain between the inner wall of the two mold bodies and the outer wall of the plastic bottle. This cuts off and isolates the plastic bottle from the mold body while further cooling the plastic bottle, greatly improving the curing effect of the plastic bottle and improving the quality of the finished product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a plastic bottle processing mold proposed in this invention; Figure 2 This is a schematic cross-sectional view of the internal structure of the processing chamber of a plastic bottle processing mold proposed in this invention. Figure 3 This is an exploded view of the external module structure of a plastic bottle processing mold proposed in this invention; Figure 4 This is a schematic cross-sectional view of the outer module structure of a plastic bottle processing mold proposed in this invention; Figure 5 This is a schematic cross-sectional view of the internal structure of the blower box in the airflow separation component of a plastic bottle processing mold proposed in this invention. Figure 6 This is a schematic cross-sectional view of the internal structure of the air-gathering cylinder in the airflow separation component of a plastic bottle processing mold proposed in this invention. Figure 7 This is a schematic diagram of the overall structure of the cooling component of a plastic bottle processing mold proposed in this invention.

[0017] In the diagram: 1. Blow molding machine body; 2. Control panel; 3. Blow molding head; 4. Processing chamber; 5. Moving rail; 6. Airflow separation assembly; 601. Blower box; 602. Electric telescopic rod; 603. Air collection cylinder; 604. Air delivery pipe; 605. Fixing frame; 606. Compression cylinder; 607. Air pump; 608. Telescopic spring; 609. Limiting plate; 610. Air jet pipe; 611. Sliding plate; 612. Plug; 613. Fixed vent; 614. Connecting block; 7. Cooling assembly; 701. Water inlet; 702. Water tank; 703. Return water pump; 704. Return pipe; 705. Heat exchanger; 706. Fixed output pipe; 707. Sliding output pipe; 708. Input water pump; 709. Sliding input pipe; 710. Fixed input pipe; 8. External module; 9. Mold body. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The plastic bottle processing mold disclosed in this invention is mainly used in scenarios where existing blow molding demolding is insufficient due to single cooling and heat exchange, resulting in inadequate bottle shaping, uneven shrinkage, adhesion to the mold cavity, and easy deformation, scratches, or even breakage during demolding.

[0020] Reference Figures 1-6 A plastic bottle processing mold, comprising: Blow molding machine body 1, with a processing chamber 4 provided on one side of blow molding machine body 1; Multiple moving rails 5 are set inside the processing chamber 4, and two external modules 8 are arranged opposite each other on the multiple moving rails 5; Two airflow separation components 6 are respectively disposed on the corresponding outer module 8, and each of the two airflow separation components 6 includes a blower box 601. Two mold bodies 9 are respectively set on one side of the corresponding blower box 601, and multiple air inlets are opened inside the two mold bodies 9; Two cooling components 7 are respectively installed on the corresponding external module 8, and each cooling component 7 includes a water tank 702.

[0021] In this invention, the airflow separation component 6 further includes: Two limiting plates 609, one end of each limiting plate 609 is set inside the corresponding sliding slot hole of the outer module 8, and the other end of each limiting plate 609 is fixedly connected to the same blower box 601. Multiple telescopic springs 608 are provided, with one end of each telescopic spring 608 being disposed at one end of a corresponding limiting plate 609, and the other end of each telescopic spring 608 being fixedly connected to the inner wall of the outer module 8.

[0022] In this invention, the airflow separation component 6 further includes: Sliding plate 611, the sliding plate 611 is disposed inside the blower box 601; Multiple plugs 612 are provided, with one end of each plug 612 being equally spaced on one side of the sliding plate 611, and the other end of each plug 612 passing through the blower box 601 and located inside the corresponding air inlet of the mold body 9.

[0023] In this invention, the airflow separation component 6 includes: Multiple air-gathering cylinders 603 are equally spaced inside the outer module 8; Multiple fixed venting cylinders 613 are respectively installed inside the corresponding air-gathering cylinder 603, and multiple outer layer holes are equally spaced on the outer wall of the multiple fixed venting cylinders 613.

[0024] In this invention, the airflow separation component 6 further includes: Multiple jet pipes 610 are disposed on one side of the blower box 601. One end of the multiple jet pipes 610 passes through the blower box 601 and is located inside the corresponding sliding hole opened in the sliding plate 611. The other end of the multiple jet pipes 610 slides inside the corresponding fixed vent 613. Multiple air outlet holes are opened at equal intervals on the outer wall of one end of the multiple jet pipes 610. Two electric telescopic rods 602 are equally spaced on one side of the blower box 601, and the telescopic ends of the two electric telescopic rods 602 are fixedly connected to the same sliding plate 611.

[0025] In this invention, the airflow separation component 6 includes: Multiple connecting blocks 614 are respectively disposed inside the corresponding fixed ventilation cylinder 613. The multiple connecting blocks 614 are connected to the other end of the corresponding jet pipe 610. Multiple inner layer holes are equally spaced on the outer wall of the multiple connecting blocks 614. Multiple fixing brackets 605 are equally spaced on the outer module 8, and the same compression cylinder 606 is installed inside every two fixing brackets 605. Multiple gas supply pipes 604, one end of each gas supply pipe 604 is disposed on one side of a corresponding compression cylinder 606, and the other end of each gas supply pipe 604 is respectively inserted into one end of a corresponding gas gathering cylinder 603; Multiple air pumps 607 are respectively installed on corresponding compression cylinders 606, and the air inlet of the multiple air pumps 607 is connected to the interior of the corresponding compression cylinders 606.

[0026] Specifically, before demolding, multiple air pumps 607 are turned on to inflate the corresponding compression cylinders 606. Since the outer holes on the multiple fixed air cylinders 613 do not coincide with the inner holes on the corresponding connecting block 614 when the two mold bodies 9 are joined, the air-gathering cylinder 603, air-transmitting pipe 604, and compression cylinder 606 are not connected to the corresponding connecting block 614 and air-jet pipe 610. When demolding begins, the two outer modules 8 move away from each other. Because the blower box 601 is connected to the corresponding outer mold via two limiting plates 609... Since block 8 is a sliding connection, within the limited distance that the two outer modules 8 move, the two mold bodies 9 remain tightly closed under the action of multiple telescopic springs 608. Simultaneously, because multiple air-gathering cylinders 603 and their internal fixed air-venting cylinders 613 are fixedly installed with the outer modules 8, they move along with the outer modules 8. This causes a relative displacement between the fixed air-venting cylinders 613 and the stationary connecting block 614, until the multiple inner holes on the connecting block 614 coincide with the multiple outer holes on the fixed air-venting cylinders 613, thus achieving the desired air-gathering effect. 3. Connecting to the jet pipe 610, simultaneously opening two electric telescopic rods 602 to move the sliding plate 611 away from the mold body 9, thereby causing multiple plugs 612 to leave the multiple air inlets on the mold body 9, thus connecting the multiple air inlets to the inside of the blower box 601, and exposing the multiple air outlets opened on the outer wall of one end of the multiple jet pipes 610. Finally, the compressed cold air inside the compression cylinder 606 passes through the air delivery pipe 604, the air gathering cylinder 603, the fixed air vent 613, the connecting block 614, and the jet pipe with a large acceleration. 610. Finally, it enters the interior of the two mold bodies 9, thereby forming a high-speed air curtain between the inner wall of the two mold bodies 9 and the outer wall of the plastic bottle. This can cut off and isolate the plastic bottle from the mold body 9 while further cooling the plastic bottle, greatly improving the curing effect of the plastic bottle and improving the quality of the finished product. When the two outer modules 8 move beyond the limited distance, multiple limit plates 609, under the pull of the corresponding outer modules 8, drive the two blower boxes 601 to move away from each other, thereby moving the two mold bodies 9 away from each other, thus completing the demolding.

[0027] In specific application scenarios, the mold closing is guided by the moving rail 5, and the limiting plate 609 slides inside the blower box 601 and compresses the telescopic spring 608. This design not only plays a buffer role in mold closing and avoids the rigid collision of the outer module 8 to damage the mold body 9, but also, in the early stage of demolding, the outer modules 8 move away from each other first, and the telescopic spring 608 uses elastic restoring force to keep the two mold bodies 9 in a tightly closed state for a short time, realizing "delayed pressure holding". This structure ensures that the preform does not deform prematurely due to the mold separation action of the outer module 8 after high-pressure blow molding and in the early stage of cooling, effectively improving the dimensional stability and roundness of the plastic bottle. The outer layer hole on the fixed vent 613 and the inner layer hole on the connecting block 614 adopt a "misaligned and non-overlapping" design, and only overlap and connect with each other when the outer module 8 moves a specific distance in the early stage of demolding. This ingenious design achieves "mechanical delayed automatic release" of high-pressure cold air, eliminating the need for additional solenoid valve control. The timing is precise and highly reliable. Once the air path is open, the electric telescopic rod 602 pushes the sliding plate 611 to move the plug 612 away from the air inlet. The high-pressure cold air in the compression cylinder 606 is then injected at high speed into the mold body 9 through the jet pipe 610, forming a high-speed annular air curtain between the outer wall of the plastic bottle and the inner wall of the mold. This air curtain not only powerfully severs the adhesion between the plastic bottle and the inner wall of the mold, but also utilizes the heat absorption effect of the cold air expansion to further cool the bottle body rapidly for a second time, significantly improving the surface smoothness and curing effect of the plastic bottle and greatly reducing the demolding damage rate.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 7 In a preferred embodiment, the cooling assembly 7 further includes: Water inlet 701 is located on water tank 702; Heat exchanger 705 is located on the lower side of outer module 8, and a fixed output pipe 706 is provided on one side of heat exchanger 705. A fixed input pipe 710 is provided on one side of the water tank 702, and an input water pump 708 is provided on the outer wall of the fixed input pipe 710.

[0029] In this invention, the cooling assembly 7 further includes: The sliding input tube 709 has one end located inside the fixed input tube 710 and the other end inserted into the water inlet hole on the upper side of the mold body 9. The sliding output tube 707 has one end located inside the fixed output tube 706, and the other end of the sliding output tube 707 is inserted into the water outlet hole opened on the lower side of the mold body 9. A return pipe 704 is installed on the water tank 702 and the heat exchanger 705, and a return water pump 703 is installed on the outer wall of the return pipe 704.

[0030] Specifically, by activating the input water pump 708, cooling water from the water tank 702 is pumped into the mold body 9 through the fixed input pipe 710 and the sliding input pipe 709, thereby exchanging heat with the inner wall of the mold body 9 and initially cooling the plastic. The water after heat exchange then enters the heat exchanger 705 for further cooling through the sliding output pipe 707 and the fixed output pipe 706. The sliding arrangement of the sliding output pipe 707 and the fixed output pipe 706, as well as the sliding input pipe 709 and the fixed input pipe 710, allows the water to move with the mold body 9, ensuring normal operation. The water cooled by the heat exchanger 705 is then returned to the water tank 702 by the activated return water pump 703, thus creating a cycle.

[0031] In specific application scenarios, the sliding engagement between the sliding input pipe 709 and the fixed input pipe 710, and between the sliding output pipe 707 and the fixed output pipe 706, allows the cooling pipes to perfectly follow the movement of the mold body 9, ensuring that the mold closing / opening actions are not restricted by the pipes and solving the water supply problem for the moving mold. Simultaneously, the closed-loop circulating water cooling system, formed by the input water pump 708, heat exchanger 705, and return water pump 703, continuously provides forced heat exchange to the merged mold body 9, greatly improving the cooling efficiency after blow molding and shortening the molding cycle.

[0032] Reference Figure 1 In a preferred embodiment, it also includes: Blow head 3 is mounted on blow molding machine body 1, and control panel 2 is also mounted on blow molding machine body 1.

[0033] A method for processing plastic bottles, using a plastic bottle processing mold as described above, includes the following steps: Step 1: In use, first control the two outer modules 8 to move relative to each other along the moving rail 5 through the control panel 2, and finally merge them (during this process, the two mold bodies 9 merge. Since the two mold bodies 9 are fixed on the corresponding blower box 601, the two limit plates 609 on the two blower boxes 601 slide inside the two outer modules 8 and squeeze the corresponding telescopic springs 608. At this time, multiple telescopic springs 608 are in a compressed state). Step 2: After the two outer modules 8 are combined, the heated preform is placed inside the two combined mold bodies 9. Then, the blow molding head 3 is controlled by the control panel 2 to inject high-pressure gas into the preform, so that the plastic adheres to the inner wall of the two combined mold bodies 9, thereby completing the blow molding. Step 3: After blow molding is completed, the cooling component 7 is turned on to exchange heat between the flowing water and the combined mold body 9, thereby cooling the blow-molded plastic bottle. (The input water pump 708 is turned on to input cooling water from the water tank 702 into the mold body 9 through the fixed input pipe 710 and the sliding input pipe 709, thereby exchanging heat with the inner wall of the mold body 9 and initially cooling the plastic. The water after heat exchange enters the heat exchanger 705 through the sliding output pipe 707 and the fixed output pipe 706 for further cooling. The sliding arrangement of the sliding output pipe 707 and the fixed output pipe 706, as well as the sliding input pipe 709 and the fixed input pipe 710, allows the water to follow the movement of the mold body 9, ensuring normal operation. The water cooled by the heat exchanger 705 is then returned to the water tank 702 by the turned-on return water pump 703, thus circulating and improving cooling efficiency.) Step 4: During demolding, the two outer modules 8 move away from each other. Simultaneously, cold air is injected into the merged mold body 9 via the airflow detachment component 6, assisting the plastic bottle in detaching from the mold body 9. Finally, the detached plastic bottles are collected. (Before demolding, multiple air pumps 607 are activated to inflate the corresponding compression cylinders 606. Because the outer holes on the multiple fixed air cylinders 613 do not coincide with the inner holes on the corresponding connecting blocks 614 when the two mold bodies 9 are merged, the air-gathering cylinder 603, air-transmitting pipe 604, and compression cylinder 606 do not connect with the corresponding connecting blocks 614.) Block 614 and the air jet pipe 610 are connected. When demolding begins, the two outer modules 8 move away from each other. Since the blower box 601 is slidably connected to the corresponding outer module 8 through two limiting plates 609, the two mold bodies 9 remain tightly closed under the action of multiple telescopic springs 608 within the limited distance the two outer modules 8 move. At the same time, since the multiple air-gathering cylinders 603 and their internal fixed air vents 613 are fixedly set with the outer modules 8, they move with the movement of the outer modules 8, thereby causing the fixed air vents 613 to undergo relative displacement with the stationary connecting block 614 until the connecting block... Multiple inner holes on 614 coincide with multiple outer holes on the fixed vent 613, thereby connecting the air-gathering cylinder 603 and the jet pipe 610. Simultaneously, two electric telescopic rods 602 are activated to move the sliding plate 611 away from the mold body 9, causing multiple plugs 612 to move away from the multiple air inlets on the mold body 9. This connects the multiple air inlets to the inside of the blower box 601 and exposes the multiple air outlets on the outer wall of one end of the multiple jet pipes 610. Finally, the compressed cold air inside the compression cylinder 606 passes through the air delivery pipe 604, air-gathering cylinder 603, and fixed vent 614 with a large acceleration. The air vent 613, connecting block 614, and air jet pipe 610 finally enter the interior of the two mold bodies 9, thereby forming a high-speed air curtain between the inner wall of the two mold bodies 9 and the outer wall of the plastic bottle. This can cut off and isolate the plastic bottle from the mold body 9 while further cooling the plastic bottle, greatly improving the curing effect of the plastic bottle and improving the quality of the finished product. When the two outer modules 8 move beyond the limited distance, multiple limit plates 609, under the pull of the corresponding outer modules 8, drive the two blower boxes 601 to move away from each other, thereby moving the two mold bodies 9 away from each other, thus completing the demolding.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plastic bottle processing mold, characterized in that, include: Blow molding machine body (1), and a processing chamber (4) is provided on one side of the blow molding machine body (1); Multiple moving rails (5) are arranged inside the processing chamber (4), and two external modules (8) are arranged opposite each other on the multiple moving rails (5). Two airflow separation components (6) are respectively disposed on the corresponding external module (8), and both airflow separation components (6) include a blower box (601). Two mold bodies (9) are respectively disposed on one side of the corresponding blower box (601), and multiple air inlets are opened inside the two mold bodies (9); Two cooling components (7) are respectively disposed on the corresponding external module (8), and both cooling components (7) include a water tank (702).

2. The plastic bottle processing mold according to claim 1, characterized in that, The airflow separation component (6) further includes: Two limiting plates (609) are provided at one end in the sliding slot hole corresponding to the outer module (8), and the other end of the two limiting plates (609) are fixedly connected to the same blower box (601). Multiple telescopic springs (608) are provided, one end of each of the multiple telescopic springs (608) is respectively disposed at one end of the corresponding limiting plate (609), and the other end of each of the multiple telescopic springs (608) is respectively fixedly connected to the inner wall of the outer module (8).

3. The plastic bottle processing mold according to claim 2, characterized in that, The airflow separation component (6) further includes: A sliding plate (611) is disposed inside the blower box (601); Multiple plugs (612) are provided at equal intervals on one side of the sliding plate (611), and the other ends of the multiple plugs (612) pass through the blower box (601) and are respectively located inside the corresponding air inlet of the mold body (9).

4. A plastic bottle processing mold according to claim 3, characterized in that, The airflow separation component (6) includes: Multiple air-gathering cylinders (603) are equally spaced inside the outer module (8); Multiple fixed venting cylinders (613) are respectively disposed inside the corresponding air-gathering cylinder (603), and multiple outer layer holes are equally spaced on the outer wall of the multiple fixed venting cylinders (613).

5. A plastic bottle processing mold according to claim 4, characterized in that, The airflow separation component (6) further includes: Multiple jet pipes (610) are disposed on one side of the blower box (601). One end of the multiple jet pipes (610) passes through the blower box (601) and is located inside the corresponding sliding hole of the sliding plate (611). The other end of the multiple jet pipes (610) slides inside the corresponding fixed ventilator (613). Multiple air outlet holes are equally spaced on the outer wall of one end of the multiple jet pipes (610). Two electric telescopic rods (602) are equally spaced on one side of the blower box (601), and the telescopic ends of the two electric telescopic rods (602) are fixedly connected to the same sliding plate (611).

6. A plastic bottle processing mold according to claim 5, characterized in that, The airflow separation component (6) includes: Multiple connecting blocks (614) are respectively disposed inside the corresponding fixed ventilation cylinder (613). The multiple connecting blocks (614) are connected to the other end of the corresponding jet pipe (610). Multiple inner layer holes are equally spaced on the outer wall of the multiple connecting blocks (614). Multiple fixing brackets (605) are equally spaced on the outer module (8), and the same compression cylinder (606) is provided inside every two fixing brackets (605). Multiple gas delivery pipes (604) are provided at one end of the multiple gas delivery pipes (604) on one side of the corresponding compression cylinder (606), and the other end of the multiple gas delivery pipes (604) are respectively inserted into one end of the corresponding gas gathering cylinder (603); Multiple air pumps (607) are respectively installed on corresponding compression cylinders (606), and the air charging ends of the multiple air pumps (607) are respectively connected to the interior of the corresponding compression cylinders (606).

7. A plastic bottle processing mold according to claim 1, characterized in that, The cooling assembly (7) also includes: Water inlet (701) is located on water tank (702); Heat exchanger (705) is located on the lower side of the outer module (8), and a fixed output pipe (706) is provided on one side of the heat exchanger (705). A fixed input pipe (710) is provided on one side of the water tank (702), and an input water pump (708) is provided on the outer wall of the fixed input pipe (710).

8. A plastic bottle processing mold according to claim 7, characterized in that, The cooling assembly (7) also includes: A sliding input tube (709) is provided at one end inside the fixed input tube (710), and the other end of the sliding input tube (709) is inserted into the water inlet hole opened on the upper side of the mold body (9). A sliding output tube (707) is provided at one end inside the fixed output tube (706), and the other end of the sliding output tube (707) is inserted into the water outlet hole opened on the lower side of the mold body (9). A return pipe (704) is installed on the water tank (702) and the heat exchanger (705), and a return water pump (703) is installed on the outer wall of the return pipe (704).

9. A plastic bottle processing mold according to claim 1, characterized in that, Also includes: Blow head (3) is provided on blow molding machine body (1), and control panel (2) is also provided on blow molding machine body (1).

10. A method for processing plastic bottles, using a plastic bottle processing mold as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: When using the device, first control the two external modules (8) to move along the moving rail (5) to each other via the control panel (2), and finally merge them. Step 2: After the two outer modules (8) are combined, the heated preform is placed inside the two combined mold bodies (9). Then, the blow molding head (3) is controlled by the control panel (2) to fill the preform with high-pressure gas, so that the plastic adheres to the inner wall of the two combined mold bodies (9), thereby completing the blow molding. Step 3: After blow molding is completed, the plastic bottle is cooled by turning on the cooling component (7) and exchanging heat between the flowing water and the combined mold body (9). Step 4: During demolding, the two outer modules (8) move away from each other. At the same time, cold air is injected into the merged mold body (9) through the airflow detachment component (6) to help the plastic bottle detach from the mold body (9). Finally, the detached plastic bottle is collected.

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