A plastic bottle blow molding die

Abstract

This utility model relates to the field of plastic bottle blow molding, and discloses a plastic bottle blow molding mold, including a support platform for support. A mounting frame is fixedly connected to the top of the support platform. A lower pressure plate is slidably connected to the upper inner side of the mounting frame. A blow molding head is fixedly connected to the bottom end of the lower pressure plate. Limiting support frames are fixedly connected to both inner sides of the mounting frame. A molding mold seat is slidably connected to both outer sides of the limiting support frames. A mold slot is formed on the inner side of each molding mold seat. A water storage tank is fixedly connected to the inner side of the support platform. A circulating cooling component is installed at the top of the water storage tank. Air-cooling components are installed on both the inner and outer sides of the molding mold seat to improve the efficiency of plastic bottle molding. This utility model improves the cooling effect and efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle blow molding, and in particular to a plastic bottle blow molding mold. Background Technology

[0002] A plastic bottle blow molding mold is a special tool used for the production of hollow plastic products. Its working principle is to put the heated and softened plastic preform into the mold cavity, close the mold, and inject high-pressure air into the preform to make the plastic expand and stick tightly to the inner wall of the mold. After cooling and solidification, the mold is opened to obtain a plastic bottle with the same shape as the mold cavity.

[0003] In the process of blow molding plastic bottles, the cooling effect of the mold directly affects the production efficiency and product quality. When the cooling is uneven or insufficient, the plastic bottle will shrink and deform, the wall thickness will be uneven, and even the surface will be dented or warped. In addition, the increased cooling time will reduce the production efficiency and prolong the production cycle. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plastic bottle blow molding mold that improves the cooling effect and efficiency of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A blow molding die for plastic bottles includes a support platform for support. A mounting frame is fixedly connected to the top of the support platform. A lower pressure plate is slidably connected to the upper inner side of the mounting frame. A blow molding head is fixedly connected to the bottom end of the lower pressure plate. Limiting support frames are fixedly connected to both inner sides of the mounting frame. A molding die seat is slidably connected to both outer sides of the limiting support frames. A die slot is formed on the inner side of each molding die seat. A water storage tank is fixedly connected to the inner side of the support platform. A circulating cooling component is installed at the top of the water storage tank. Air-cooled cooling components are installed on both the inner and outer sides of the molding die seat to improve the efficiency of plastic bottle molding.

[0007] Furthermore, the air-cooled cooling component includes a cooling fan located inside the outer side of the molding mold base. Multiple external exhaust slots are provided on both sides of the molding mold base. Multiple cooling fins are uniformly fixedly connected inside the molding mold base, located inside the cooling fan.

[0008] Furthermore, the circulating cooling component includes upper delivery hoses located on both sides of the top of the water storage tank. A traction water pump is fixedly connected to the outside of each upper delivery hose. A cooling water tank is opened inside the molding mold base. A water inlet pipe is fixedly connected to the rear side of the bottom of the molding mold base. The top ends of the upper delivery hoses are respectively fixedly connected to the bottom ends of the water inlet pipes.

[0009] Furthermore, a transmission water pipe is fixedly connected to the front end of the cooling water tank inside the molding mold base. A drain pipe is fixedly connected to the bottom end of the transmission water pipe. A down-feed hose is fixedly connected to the bottom end of the drain pipe. The bottom end of the down-feed hose is fixedly connected to the top end of the water storage tank.

[0010] Furthermore, hydraulic push rods are fixedly connected to both sides of the interior of the mounting frame, and a support disc frame is fixedly connected to the outer side of the forming mold base. The output end of the hydraulic push rod is fixedly connected to the outer side of the support disc frame.

[0011] Furthermore, a downward-pushing cylinder is fixedly connected to the top of the mounting frame, a downward-pushing rod is fixedly connected to the output end of the downward-pushing cylinder, and the bottom end of the downward-pushing rod is fixedly connected to the top of the downward-pressing plate.

[0012] Furthermore, a cooling copper sheet is fixedly connected inside the molding die seat on the inner side of the cooling fins, and a conductive copper column is fixedly connected inside the cooling copper sheet. The outer inner side of the conductive copper column penetrates into the interior of the cooling water tank and is fixedly connected to a transfer copper sheet.

[0013] Furthermore, the partition grooves of the cooling fins correspond to the external exhaust ports to improve air circulation.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, cooling water is transmitted to the interior of the cooling water tank through the water inlet pipe. When the water level reaches the transmission water pipe, it is discharged downward to complete the circulation. Furthermore, the cooling water is cooled by the cooling fan. The cooling water is further cooled by the connection between the transmission copper plate, the conduction copper column and the cooling copper plate, thereby improving the cooling effect and efficiency of the device. Attached Figure Description

[0016] Figure 1 This is an overall view of a plastic bottle blow molding die proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the water storage tank mechanism of a blow molding die for a plastic bottle proposed in this utility model;

[0018] Figure 3 This is an inner view of the molding die of a plastic bottle blow molding die proposed in this utility model;

[0019] Figure 4 This is an external view of the forming mold of a plastic bottle blow molding mold proposed in this utility model;

[0020] Figure 5This is an internal view of the molding die of a plastic bottle blow molding die proposed in this utility model;

[0021] Figure 6 This invention relates to a copper sheet transfer mechanism for a blow molding die for plastic bottles.

[0022] Legend:

[0023] 1. Supporting platform; 2. Mounting frame; 3. Downward push cylinder; 4. Downward push rod; 5. Downward pressure plate; 6. Blow molding head; 7. Molding mold base; 8. Hydraulic push rod; 9. Supporting disc frame; 10. Limiting support frame; 11. Upper conveying hose; 12. Lower conveying hose; 13. Water storage tank; 14. External drain outlet; 15. Traction water pump; 16. Mold slot; 17. Water inlet pipe; 18. Drain pipe; 19. Cooling fan; 20. Cooling fins; 21. Cooling copper sheet; 22. Cooling water tank; 23. Transmission water pipe; 24. Transmission copper sheet; 25. Conducting copper column. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a plastic bottle blow molding mold, comprising a support platform 1 for support, a mounting frame 2 fixedly connected to the top of the support platform 1, a lower pressure plate 5 slidably connected to the upper inner side of the mounting frame 2, a blow molding head 6 fixedly connected to the bottom end of the lower pressure plate 5, limit support frames 10 fixedly connected to both inner sides of the mounting frame 2, and molding mold seats 7 slidably connected to both outer sides of the limit support frames 10, each molding mold seat 7 having a mold slot 16 on its inner side, and a water tank fixedly connected to the inner side of the support platform 1. The water tank 13 has a circulating cooling component installed at its top. The molding mold base 7 has air-cooled cooling components installed both inside and outside to improve the efficiency of plastic bottle molding. The circulating cooling component includes upper delivery hoses 11 located on both sides of the top of the water tank 13. A traction water pump 15 is fixedly connected to the outside of each upper delivery hose 11. A cooling water tank 22 is provided inside the molding mold base 7. A water inlet pipe 17 is fixedly connected to the rear side of the bottom of the molding mold base 7. The top ends of the upper delivery hoses 11 are respectively fixedly connected to the bottom ends of the water inlet pipes 17. (Refer to...) Figure 5The molding mold base 7 is located inside the cooling water tank 22 and is fixedly connected to the front end of the cooling water tank 22. The bottom end of the cooling water tank 22 is fixedly connected to the drain pipe 18. The bottom end of the drain pipe 18 is fixedly connected to the down-feed hose 12. The bottom end of the down-feed hose 12 is fixedly connected to the top end of the water storage tank 13. The two sides of the inside of the mounting frame 2 are fixedly connected to hydraulic push rods 8. The outer side of the molding mold base 7 is fixedly connected to the support disc frame 9. The output end of the hydraulic push rod 8 is fixedly connected to the outer side of the support disc frame 9. The top end of the mounting frame 2 is fixedly connected to the down-push cylinder 3. The output end of the down-push cylinder 3 is fixedly connected to the down-push rod 4. The bottom end of the down-push rod 4 is fixedly connected to the top end of the down-press plate 5.

[0026] First, the hydraulic push rods 8 on both sides are started simultaneously, pushing the support disc frame 9 to move inward, so that the molding mold seats 7 on both sides fit tightly together. Then, the raw material is injected into the mold slot 16. At the same time, the lower push cylinder 3 is started to drive the lower push rod 4 to press down, which drives the air pipe of the blow molding head 6 to extend into the mold slot 16 for blow molding. At the same time, the traction water pump 15 starts to work, pumping the cooling water in the water storage tank 13 into the water inlet pipe 17 through the upper delivery hose 11, and flowing into the cooling water tank 22 of the mold. When the water level exceeds the set height of the transmission water pipe 23, the cooling water flows back to the lower delivery hose 12 through the drain pipe 18 through the transmission water pipe 23, and finally returns to the water storage tank 13, realizing the efficient operation of the cooling water circulation system.

[0027] Reference Figure 4 , Figure 5 and Figure 6 The air-cooled cooling component includes a cooling fan 19 located inside the outer side of the molding mold base 7. Multiple external discharge slots 14 are provided on both sides of the molding mold base 7. Multiple cooling fins 20 are uniformly fixedly connected inside the molding mold base 7 and inside the cooling fan 19. Cooling copper sheets 21 are fixedly connected inside the molding mold base 7 and inside the cooling fins 20. Conductive copper pillars 25 are fixedly connected inside the cooling copper sheets 21. The outer side of the conductive copper pillars 25 penetrates into the interior of the cooling water tank 22 and is fixedly connected to a transfer copper sheet 24. The partition slots of the cooling fins 20 correspond to the external discharge slots 14 to improve air circulation.

[0028] During the cooling process, the copper plate 24 directly contacts the cooling water in the cooling water tank 22, and the water temperature change is conducted to the cooling copper plate 21 through the heat-conducting copper column 25. At the same time, the cooling fans 19 on both sides are started, which accelerates the introduction of external air into the molding mold seat 7. The high-speed airflow passes through the multi-channel structure formed by the cooling fins 20, which further improves the linear flow rate, thereby rapidly reducing the surface temperature of the cooling copper plate 21. Finally, the air after heat exchange is discharged through the exhaust port 14, achieving efficient heat dissipation. This design significantly improves the overall cooling effect and cooling efficiency of the system through the synergistic effect of water cooling and air cooling.

[0029] Working principle: Simultaneously activating the hydraulic push rods 8 on both sides generates an inward thrust on the supporting disc frame 9, thereby bringing the molding mold seats 7 on both sides together. At this time, a certain amount of raw material is added to the inside of the mold slot 16. Activating the downward push cylinder 3 generates downward pressure on the downward push rod 4, pressing down the lower pressure plate 5. The air pipe of the blow molding head 6 contacts the inside of the mold slot 16, thereby blowing the raw material inside the mold slot 16. At this time, the traction water pump 15 is activated to transmit the cooling water inside the water storage tank 13 upward through the upward conveying hose 11, thereby entering the inside of the water inlet pipe 17. The cooling water is discharged into the cooling water tank 22. The cooling water accumulates inside the cooling water tank 22. When the water level is higher than that of the transmission water pipe 23, the cooling water flows through the transmission water... The water flows downward through pipe 23, then flows back into the downflow hose 12 via drain pipe 18 and enters the water storage tank 13, completing the circulation of cooling water. During the cooling process, the copper plate 24 contacts the cooling water inside the cooling water tank 22. The temperature of the cooling water is connected to the cooling copper plate 21 through the conduction copper column 25. At the same time, the cooling fans 19 on both sides are activated to accelerate the external air into the mold base 7. The accelerated airflow enters the multiple slots separated by the cooling fins 20, increasing the linear velocity of the airflow and rapidly reducing the surface temperature of the cooling copper plate 21. The air is discharged to the outside through the exhaust slot 14, reducing the internal cooling water temperature and improving the cooling effect and efficiency of the device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic bottle blow molding mold characterized by, The device includes a support platform (1) for support, a mounting frame (2) fixedly connected to the top of the support platform (1), a lower pressure plate (5) slidably connected to the upper inner side of the mounting frame (2), a blow molding head (6) fixedly connected to the bottom of the lower pressure plate (5), a limiting support frame (10) fixedly connected to both sides of the inner side of the mounting frame (2), a molding mold seat (7) slidably connected to both sides of the outer side of the limiting support frame (10), a mold slot (16) opened on the inner side of the molding mold seat (7), a water storage tank (13) fixedly connected to the inner side of the support platform (1), a circulating cooling component installed at the top of the water storage tank (13), and air-cooled cooling components installed on both the inner and outer sides of the molding mold seat (7) to improve the efficiency of plastic bottle molding.

2. A blow mold for plastic bottles according to claim 1, characterized in that: The air-cooled cooling component includes a cooling fan (19) located inside the outside of the molding mold base (7). Multiple external discharge slots (14) are provided on both sides of the molding mold base (7). Multiple cooling fins (20) are uniformly fixedly connected inside the molding mold base (7) and located inside the cooling fan (19).

3. A blow mold for plastic bottles according to claim 1, characterized in that: The circulating cooling component includes upper delivery hoses (11) located on both sides of the top of the water storage tank (13). The upper delivery hoses (11) are fixedly connected to the outside of the traction water pump (15). The molding mold base (7) has a cooling water tank (22) inside. The bottom rear side of the molding mold base (7) is fixedly connected to the water inlet pipe (17). The top of the upper delivery hoses (11) is fixedly connected to the bottom of the water inlet pipe (17).

4. A plastic bottle blow molding mold according to claim 3, characterized in that: The mold base (7) is located inside the front end of the cooling water tank (22) and is fixedly connected to a transmission water pipe (23). The bottom end of the transmission water pipe (23) is fixedly connected to a drain pipe (18). The bottom end of the drain pipe (18) is fixedly connected to a down-feed hose (12). The bottom end of the down-feed hose (12) is fixedly connected to the top of the water storage tank (13).

5. A plastic bottle blow molding mold according to claim 1, characterized in that: Hydraulic push rods (8) are fixedly connected to both sides of the inner side of the mounting frame (2), and a support disc frame (9) is fixedly connected to the outer side of the molding mold base (7). The output end of the hydraulic push rod (8) is fixedly connected to the outer side of the support disc frame (9).

6. A plastic bottle blow molding mold according to claim 1, characterized in that: The top of the mounting frame (2) is fixedly connected to a push cylinder (3), the output end of the push cylinder (3) is fixedly connected to a push rod (4), and the bottom end of the push rod (4) is fixedly connected to the top of the pressure plate (5).

7. The blow molding die for a plastic bottle according to claim 1, characterized in that: The mold base (7) is located inside the cooling fin (20) and a cooling copper sheet (21) is fixedly connected. A conductive copper column (25) is fixedly connected to the inside of the cooling copper sheet (21). The outer side of the conductive copper column (25) penetrates into the interior of the cooling water tank (22) and is fixedly connected to a transmission copper sheet (24).

8. A plastic bottle blow molding mold according to claim 2, characterized in that: The partition grooves of the cooling fins (20) correspond to the external discharge slots (14) to improve air circulation.

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