Demolding device for high-barrier plastic bottle

Abstract

The utility model relates to the technical field of demolding of high-barrier plastic bottles, in particular to a demolding device for a high-barrier plastic bottle. The demolding device for the high-barrier plastic bottle comprises a containing box, a driving assembly, a protection assembly, an air pump and a water tank, four fixing rods are fixedly connected to the interior of the front side of the containing box, and two connecting plates are slidably connected to the exteriors of the four fixing rods; and two molds are slidably connected to the positions, on the close sides of the two connecting plates, of the exteriors of the multiple fixing rods, springs are arranged at the positions, between the connecting plates and the molds, of the exteriors of the fixing rods in a sleeving mode, two connecting blocks are fixedly connected to the bottom ends of the connecting plates, driving assemblies are installed at the bottom ends of the connecting blocks, and a protection assembly is installed on the inner wall of the front side of the containing box. According to the utility model, the heat of the mold can be taken away more quickly and effectively, the cooling and shaping speed of the plastic bottle is accelerated, the overall working efficiency is improved, the production cycle is shortened, the mold is cooled more uniformly, and the appearance and the usability of the high-barrier plastic bottle are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of high-barrier plastic bottle demolding technology, and in particular to a demolding device for high-barrier plastic bottles. Background Technology

[0002] High-barrier plastic bottles are plastic containers with excellent gas and moisture barrier properties. They are commonly used to package environmentally sensitive products such as pharmaceuticals, food, and cosmetics, effectively extending shelf life and maintaining quality. Because the plastic adheres tightly to the mold wall during the molding process, natural demolding is extremely difficult, easily causing bottle deformation and damage. Therefore, a demolding device is needed to ensure the high-barrier plastic bottle is successfully removed from the mold, guaranteeing product quality and production efficiency.

[0003] Most demolding devices fix the injection head, then use two molds close together to cover the injection head for injection. A three-jaw chuck clamps the outside of the injection head and then the head of the bottle. An air blower blows air onto the unformed bottle, causing the injection material to contact the inner walls of the two molds. After a period of stillness, the compressed air cools and shapes the plastic bottle. The clamping is then released, and the bottle is allowed to cool naturally for a while before the three-jaw chuck is released to release the formed bottle. However, this method relies solely on natural cooling and compressed air cooling, resulting in slow cooling and reduced overall efficiency. Removing the bottle too early can lead to incomplete cooling, damaging the bottle during demolding and affecting the product's appearance and performance.

[0004] Therefore, it is necessary to provide a new demolding device for high-barrier plastic bottles to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a demolding device for high-barrier plastic bottles.

[0006] This utility model provides a demolding device for high-barrier plastic bottles, comprising: a receiving box, a driving assembly, a protective assembly, an air pump, and a water tank. Four fixing rods are fixedly connected to the inside of the front side of the receiving box. Two connecting plates are slidably connected to the outside of the four fixing rods. Two molds are slidably connected to the outside of the fixing rods on adjacent sides of the two connecting plates. Springs are sleeved between the connecting plates and the molds on the outside of the fixing rods. Two connecting blocks are fixedly connected to the bottom of the connecting plates, and a driving assembly is installed at the bottom of the connecting blocks. A protective assembly is installed on the inner wall of the front side of the receiving box. An air pump is fixedly connected to the top of the receiving box, and the output end of the air pump is fixedly connected to... The injection head has a three-jaw clamp fixedly connected to the top of the receiving box. The input end of the air pump is fixedly connected to a delivery pipe. Two water tanks are fixedly connected to the top of the receiving box. Multiple heat dissipation fins are fixedly connected to the outside of the water tanks. A water pump is fixedly connected to one side of the heat dissipation fins. A transmission pipe is fixedly connected to the output end of the water pump. A cooling pipe is fixedly connected to the output end of the transmission pipe. A connecting pipe is fixedly connected to the output end of the cooling pipe. A circulation pipe is fixedly connected to the output end of the connecting pipe. The output end of the circulation pipe is fixedly connected to the side of the water tank away from the water pump. Receiving cavities are opened inside the two molds on opposite sides. The outside of the cooling pipe is fixedly connected to the inner wall of the receiving cavity.

[0007] Preferably, the drive assembly includes two rack plates, the top of the rack plates is fixedly connected to the bottom of two of the connecting blocks, a motor is fixedly connected inside the bottom of the housing, and a gear is fixedly connected to the drive end of the motor.

[0008] Preferably, the protective assembly includes two protective doors, the exterior of which is slidably connected to the front interior of the receiving box, and a handle groove is provided on the front of the protective doors.

[0009] Preferably, the two molds are in contact on their adjacent sides during operation, and the two ends of the spring are fixedly connected to the mold and the connecting plate.

[0010] Preferably, the inner bottom of the container has multiple sliding holes, and the outer side of the connecting block is slidably connected to the inner wall of the sliding holes.

[0011] Preferably, a second sliding hole is provided on the rear side of the container, and the outer side of the connecting pipe is slidably connected to the inner wall of the second sliding hole. Two movable holes are provided on the top of the container, and the outer side of the transmission pipe is in contact with the inner wall of the movable hole. An arc shape is provided on the side of the movable hole near the transmission pipe. Both the transmission pipe and the circulation pipe are water pipes.

[0012] Preferably, the bottom end of the gear is rotatably connected to the bottom end of the housing, the rack plate is meshed with the gear, and the outside of the rack plate is slidably connected to the bottom end of the housing.

[0013] Preferably, the injection head model is the same as that in the EK17A-8 fully automatic disc-type plastic blow injection molding machine.

[0014] Compared with related technologies, the demolding device for high-barrier plastic bottles provided by this utility model has the following beneficial effects:

[0015] This invention utilizes a circulating cooling system consisting of a water tank, water pump, transmission pipe, and cooling pipe. Compared to relying solely on natural cooling and air-assisted cooling, this system can remove heat from the mold more quickly and effectively, accelerate the cooling and shaping of the plastic bottle, improve overall work efficiency, reduce the production cycle, and ensure more uniform mold cooling, thus guaranteeing the appearance and performance of the high-barrier plastic bottle.

[0016] This invention utilizes a drive assembly consisting of a motor, gears, and rack to control the opening and closing of the mold. The spring acts as a buffer and assists in resetting, ensuring a smooth demolding process and reducing the risk of damage to the plastic bottle due to uneven force during demolding. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a demolding device for a high-barrier plastic bottle provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structure of the container.

[0019] Figure 3 for Figure 1 The diagram shows the structure of the mold.

[0020] Figure 4 for Figure 2 Enlarged view of point A in the image;

[0021] Figure 5 for Figure 2 Enlarged view of point B in the image.

[0022] The following are the labels in the diagram: 1. Receiving box; 2. Fixing rod; 3. Connecting plate; 4. Mold; 5. Spring; 6. Connecting block; 7. Rack plate; 8. Motor; 9. Gear; 10. Sliding hole one; 11. Protective door; 12. Handle groove; 13. Air pump; 14. Three-jaw gripper; 15. Conveying pipe; 16. Water tank; 17. Heat dissipation fins; 18. Water pump; 19. Transmission pipe; 20. Cooling pipe; 21. Connecting pipe; 22. Circulating pipe; 23. Sliding hole two; 24. Movable hole; 25. Receiving chamber. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 5 A demolding device for high-barrier plastic bottles, comprising: a receiving box 1, with four fixed rods 2 fixedly connected to the front interior of the receiving box 1, and two connecting plates 3 slidably connected to the outside of the four fixed rods 2 for transmitting power; two molds 4 slidably connected to the outside of the multiple fixed rods 2 on the adjacent side of the two connecting plates 3 for forming the molding cavity of the high-barrier plastic bottle; the four fixed rods 2 provide a stable sliding track for the connecting plates 3 and the molds 4, ensuring that they can move smoothly in a fixed direction during the operation of the device; springs 5 ​​are sleeved on the outside of the fixed rods 2 between the connecting plates 3 and the molds 4; the adjacent sides of the two molds 4 contact each other during operation; the two ends of the springs 5 ​​are fixedly connected to the molds 4 and the connecting plates 3, playing a role in buffering and shock absorption during the movement of the molds 4, and assisting the molds 4 in resetting, ensuring the smoothness of the demolding process; two connecting blocks 6 are fixedly connected to the bottom end of the connecting plates 3;

[0026] The drive assembly is installed at the bottom of the connecting block 6. The drive assembly includes two rack plates 7. The top of the rack plates 7 is fixedly connected to the bottom of two of the connecting blocks 6. The bottom of the receiving box 1 is fixedly connected to a motor 8, which serves as the power source for the drive assembly. The drive end of the motor 8 is fixedly connected to a gear 9. The bottom of the gear 9 is rotatably connected to the bottom of the receiving box 1. The rack plates 7 and gear 9 are meshed. The outside of the rack plates 7 is slidably connected to the bottom of the receiving box 1. The bottom of the receiving box 1 has multiple sliding holes 10. The outside of the connecting block 6 is slidably connected to the inner wall of the sliding holes 10 to ensure that the connecting block 6 will not deviate during movement and to ensure the stability of the mold 4 movement. There are two rack plates 7. Through meshing with the gear 9, they slide inside the bottom of the receiving box 1, thereby driving the connecting block 6 and the connecting plate 3 to move, realizing the opening and closing action of the mold 4.

[0027] The protective assembly includes two protective doors 11 installed on the front inner wall of the housing 1. These doors can be opened or closed by sliding. When the device is in operation, the doors are closed to effectively prevent potential hazards caused by the movement of internal components or during the injection molding process, thus protecting the operator. The exterior of the two protective doors 11 is slidably connected to the front interior of the housing 1. The front of each protective door 11 has a handle groove 12, allowing the operator to apply force through the handle groove 12 to slide the protective door 11.

[0028] An air pump 13 is fixedly connected to the top of the receiving box 1. An injection head is fixedly connected to the output end of the air pump 13. The injection head is the same model as the injection head in the EK17A-8 fully automatic disc-type plastic blow injection molding machine. It has both blowing and injection functions. A delivery pipe 15 is fixedly connected to the input end of the air pump 13. Gas is input through the delivery pipe 15 to provide power to the injection head, enabling it to inject plastic raw materials into the cavity of the mold 4. During the injection process, the blowing function is used to ensure that the injection material is in full contact with the inner wall of the mold 4. A three-jaw clamp 14 is fixedly connected to the top of the inside of the receiving box 1. During the injection process, after starting, it clamps and fixes the outside of the injection head and the head of the injection bottle to ensure the stability of the position of the injection head and the head of the plastic bottle during the injection process, thereby improving the precision and stability of the injection.

[0029] Water tank 16: Two water tanks 16 are fixedly connected to the top of the housing 1 for storing cooling water. Multiple heat dissipation fins 17 are fixedly connected to the outside of each water tank 16. By increasing the heat dissipation area of ​​the water tank 16, the heat dissipation rate of the water inside the water tank 16 is accelerated, assisting in heat dissipation. A water pump 18 is fixedly connected to one side of each heat dissipation fin 17. A transmission pipe 19 is fixedly connected to the output end of the water pump 18. A cooling pipe 20 is fixedly connected to the output end of the transmission pipe 19. A connecting pipe 21 is fixedly connected to the output end of the cooling pipe 20. A circulating pipe 22 is fixedly connected to the output end of the connecting pipe 21. Both the transmission pipe 19 and the circulating pipe 22 are water pipes with extensibility, allowing them to move with the mold 4 to ensure the normal operation of the cooling system. The circulating pipe 2... The output end of 2 is fixedly connected to the side of the water tank 16 away from the water pump 18. A sliding hole 23 is provided on the rear side of the receiving box 1. The outer side of the connecting pipe 21 is slidably connected to the inner wall of the sliding hole 23 to ensure that the connecting pipe 21 can slide smoothly during the movement of the mold 4. Two movable holes 24 are provided at the top of the receiving box 1. The outer side of the transmission pipe 19 is in contact with the inner wall of the movable hole 24. The movable hole 24 is arc-shaped on the side near the transmission pipe 19. A receiving chamber 25 is provided inside the two molds 4 on the far side to accommodate the cooling pipe 20 and provide an installation position for the cooling pipe 20 so that the cooling pipe 20 can fit tightly against the mold 4 to improve the cooling effect. The outer side of the cooling pipe 20 is fixedly connected to the inner wall of the receiving chamber 25.

[0030] The working principle of the demolding device for high-barrier plastic bottles provided by this utility model is as follows:

[0031] First, ensure the container 1 is in a stable and clean working environment. Open the protective door 11 via its sliding connection to the front interior of the container 1. Operation is convenient via the handle groove 12. At this point, the device is in contact with the two molds 4. First, start the air pump 13, inputting gas through the delivery pipe 15. The injection head at the output end of the air pump 13 begins operation, injecting plastic raw material into the cavity formed by the two molds 4. Then, the three-jaw clamp 14 activates, clamping and securing the outside of the injection head and the head of the injection-molded bottle to ensure the stability of the injection molding process.

[0032] Using the same injection head as the EK17A-8 fully automatic disc-type plastic blow injection molding machine, which has both blowing and injection functions, air is blown onto the unformed injection bottle, so that the injection material is in full contact with the inner walls of the two molds 4, ensuring that the shape of the plastic bottle meets the design requirements.

[0033] Then, water pump 18 is activated, drawing water from water tank 16 and channeling it through transfer pipe 19 into cooling pipe 20. Cooling pipe 20 is located within the receiving chamber 25 of mold 4, cooling mold 4 and removing heat to help the plastic bottle cool and solidify quickly. After flowing in cooling pipe 20, the water flows through connecting pipe 21 into circulation pipe 22, and then back to water tank 16, forming a circulating cooling system. Heat dissipation fins 17 assist in heat dissipation from water tank 16, improving cooling efficiency.

[0034] Once the plastic bottle has cooled to a certain temperature, the motor 8 is started, driving the gear 9 to rotate. Since the gear 9 meshes with the rack plate 7, the rack plate 7 slides inside the bottom of the receiving box 1. The connecting block 6, fixedly connected to the top of the rack plate 7, causes the connecting plate 3 to slide on the fixed rod 2, gradually separating the two molds 4. Simultaneously, the connecting pipe 21 slides on the inner wall of the sliding hole 23, and the transmission pipe 19 slides on the inner wall of the movable hole 24. Because both the transmission pipe 19 and the circulating pipe 22 are water pipes with extensibility (the actual length is much longer in the diagram for ease of illustration), they move along with the molds 4. During this process, the spring 5 acts as a buffer and assists in resetting. After the molds 4 are completely separated, a tool is used to clamp the plastic bottle and then release the three-jaw clamp 14 to remove the plastic bottle, completing the demolding process.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A demolding device for a high-barrier plastic bottle, characterized in that, include: The container (1) has four fixed rods (2) fixedly connected inside the front side of the container (1). Two connecting plates (3) are slidably connected to the outside of the four fixed rods (2). Two molds (4) are slidably connected to the outside of the multiple fixed rods (2) on the adjacent side of the two connecting plates (3). A spring (5) is sleeved between the connecting plate (3) and the mold (4) on the outside of the fixed rods (2). Two connecting blocks (6) are fixedly connected to the bottom end of the connecting plate (3). The driving component is installed at the bottom of the connecting block (6); The protective components are installed on the front inner wall of the housing (1); An air pump (13) is fixedly connected to the top of the container (1), an injection head is fixedly connected to the output end of the air pump (13), a three-jaw clamp (14) is fixedly connected to the top of the inside of the container (1), and a delivery pipe (15) is fixedly connected to the input end of the air pump (13). Two water tanks (16) are fixedly connected to the top of the container (1). Multiple heat dissipation fins (17) are fixedly connected to the outside of the water tank (16). A water pump (18) is fixedly connected to one side of the heat dissipation fins (17). A transmission pipe (19) is fixedly connected to the output end of the water pump (18). A cooling pipe (20) is fixedly connected to the output end of the transmission pipe (19). A connecting pipe (21) is fixedly connected to the output end of the cooling pipe (20). A circulation pipe (22) is fixedly connected to the output end of the connecting pipe (21). The output end of the circulation pipe (22) is fixedly connected to the side of the water tank (16) away from the water pump (18). A container chamber (25) is opened inside the two molds (4) on the opposite side. The outside of the cooling pipe (20) is fixedly connected to the inner wall of the container chamber (25).

2. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The drive assembly includes two rack plates (7), the top of the rack plates (7) is fixedly connected to the bottom of two of the connecting blocks (6), a motor (8) is fixedly connected inside the bottom of the housing (1), and a gear (9) is fixedly connected to the drive end of the motor (8).

3. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The protective assembly includes two protective doors (11), the exterior of which is slidably connected to the front interior of the receiving box (1), and a handle groove (12) is provided on the front side of the protective door (11).

4. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The two molds (4) are in contact on their adjacent sides during operation, and the two ends of the spring (5) are fixedly connected to the mold (4) and the connecting plate (3).

5. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The inner bottom of the container (1) has multiple sliding holes (10), and the outer side of the connecting block (6) is slidably connected to the inner wall of the sliding holes (10).

6. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The rear side of the container (1) is provided with a sliding hole (23). The outer side of the connecting pipe (21) is slidably connected to the inner wall of the sliding hole (23). The top of the container (1) is provided with two movable holes (24). The outer side of the transmission pipe (19) is in contact with the inner wall of the movable hole (24). The movable hole (24) is arc-shaped on the side near the transmission pipe (19). Both the transmission pipe (19) and the circulation pipe (22) are water pipes.

7. The demolding device for a high-barrier plastic bottle according to claim 2, characterized in that, The bottom end of the gear (9) is rotatably connected to the bottom end of the housing (1), the rack plate (7) is meshed with the gear (9), and the outside of the rack plate (7) is slidably connected to the bottom end of the housing (1).

8. The demolding device for a high-barrier plastic bottle according to claim 1, characterized in that, The injection head model is the same as that in the EK17A-8 fully automatic disc-type plastic blow injection molding machine.

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