Blanking and cooling device for blow molding of plastic products
By combining ramp blocks for buffering and cooling ducts, the problems of deformation and accumulation during the unloading of plastic products are solved, enabling convenient removal and cooling, and improving product quality.
Patent Information
- Application Number
- CN202422854303.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Plastic products are prone to deformation and accumulation during the unloading process after blow molding, making them difficult to remove directly and affecting product quality.
A material unloading and cooling device was designed, which includes a ramp block, an elastic component, a rotating shaft, and a cooling duct. The ramp block buffers the falling material, the rotating baffle removes the product, and the cooling duct cools the falling product.
This allows for easy removal of plastic products, reduces deformation damage, and improves the yield rate.
Smart Images
Figure CN223545768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blow molding technology, and in particular to a cooling device for blow molding of plastic products. Background Technology
[0002] Blow molding is a plastic molding technology that involves heating and softening plastic to form a preform, then injecting compressed air into the preform to inflate it and fit it into a mold cavity. After cooling, a hollow plastic product is obtained. This process is suitable for manufacturing containers and parts of various complex shapes and is widely used in many industries such as food packaging, daily chemicals, medical, chemical, toy, automotive, and construction.
[0003] After blow molding, plastic products need to be removed from the mold for subsequent processing. Therefore, a blow molding material cooling device is needed.
[0004] Currently, during the blow molding of plastic products, the plastic products typically fall into the receiving box at the bottom after the blow molding mold is opened. At this time, the plastic products are not completely cooled, and they are prone to deformation when they come into contact with the bottom surface during the fall, which affects the product quality. At the same time, the products are difficult to remove directly when they accumulate in the box, which is inconvenient for the next step of product processing. Therefore, a cooling device for blow molding of plastic products is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a cooling device for blow molding of plastic products, which aims to improve the problems in the prior art, such as the difficulty in directly removing products that are piled up in the frame, and the easy deformation of products when they come into contact with the bottom surface during the falling process.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic product blow molding material cooling device, comprising a material feeding box, an inclined block fixedly connected inside the material feeding box, an elastic component provided on the top of the inclined block, a receiving plate fixedly connected to the top of the elastic component, a material outlet opened on the right side of the material feeding box, a connecting seat fixedly connected to the top of the material feeding box, a rotating ring rotatably connected to the outside of the connecting seat, a rotating shaft fixedly connected inside the rotating ring, a baffle fixedly connected to the outer circumference of the rotating shaft, positioning holes opened inside both the rotating shaft and the rotating ring, a limiting groove opened on the top of the material feeding box, and a fixing pin elastically connected to the bottom of the limiting groove by a limiting spring.
[0007] As a further description of the above technical solution:
[0008] The front and rear sides of the feeding box are fixedly connected to connecting plates. An air inlet box is fixedly connected to the outside of the connecting plates. A fan is installed inside the air inlet box. A cooling air duct is fixedly connected to the top of the air inlet box. An air outlet is opened on the inner side of the cooling air duct. There are two sets of cooling air ducts. The two sets of cooling air ducts are connected by a connecting pipe and a slanted baffle.
[0009] As a further description of the above technical solution:
[0010] The elastic component includes a sliding sleeve, the bottom of which is fixedly connected to the top of the ramp block, and a sliding column is elastically connected to the inner wall of the bottom end of the sliding sleeve through a buffer spring. The top end of the sliding column is fixedly connected to the bottom of the receiving plate.
[0011] As a further description of the above technical solution:
[0012] One end of the buffer spring is fixedly connected to the inner wall of the bottom end of the sliding sleeve, and the other end of the buffer spring is fixedly connected to the bottom of the sliding column. The outer periphery of the sliding column is slidably connected to the inside of the sliding sleeve.
[0013] As a further description of the above technical solution:
[0014] One end of the limiting spring is fixedly connected to the inner wall of the bottom end of the limiting groove, and the other end of the limiting spring is fixedly connected to the bottom of the fixing pin. The outer circumference of the fixing pin is slidably connected to the inside of the limiting groove.
[0015] As a further description of the above technical solution:
[0016] The fixing pin is slidably connected to the inside of the positioning hole on its outer periphery.
[0017] As a further description of the above technical solution:
[0018] The bottom end of the cooling duct on the lower side is fixedly connected to the top of the connecting plate.
[0019] As a further description of the above technical solution:
[0020] The connecting pipe and the inclined block are inclined on the upper side and outward, and a set of connecting pipes are fixedly connected to the outer side of the inclined block.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by setting a rotating shaft, rotating ring, baffle and other mechanisms, the baffle can be rotated and moved away by moving the fixing pin downwards. The finished product slides down the inclined surface of the receiving plate along the inclined block, so that the product can be easily taken out from the front of the feeding box, which is more convenient to use.
[0023] 2. In this utility model, by setting up structures such as a wind box and cooling air duct, the plastic products are cooled and hardened when they fall. At the same time, the inclined block prevents the plastic products from falling out of the feeding box, and the buffer spring provides cushioning when the products fall, thereby reducing damage to the plastic products during feeding and improving the yield rate. Attached Figure Description
[0024] Figure 1 This is a front view of the overall design of a plastic product blow molding blanking and cooling device proposed in this utility model;
[0025] Figure 2 This is a front cross-sectional view of the feeding box of a blow molding and cooling device for plastic products proposed in this utility model;
[0026] Figure 3 This utility model proposes a cooling device for blow molding of plastic products. Figure 2 Enlarged view of point A;
[0027] Figure 4 This is a front cross-sectional view of the sliding sleeve of a blow molding and cooling device for plastic products proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of the bottom surface of the connecting plate of a blow molding and cooling device for plastic products proposed in this utility model.
[0029] Legend:
[0030] 1. Feeding box; 2. Inclined block; 3. Sliding sleeve; 4. Buffer spring; 5. Sliding column; 6. Receiving plate; 7. Discharge port; 8. Connecting seat; 9. Rotating ring; 10. Rotating shaft; 11. Baffle; 12. Positioning hole; 13. Limiting groove; 14. Limiting spring; 15. Fixing pin; 16. Connecting plate; 17. Air inlet box; 18. Fan; 19. Cooling air duct; 20. Air outlet; 21. Connecting pipe; 22. Inclined block. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a plastic product blow molding material cooling device, including a material feeding box 1, which is located below the blow molding mold. When the blow molding mold is opened, the plastic product will fall directly into the inside of the material feeding box 1. A ramp block 2 is fixedly connected inside the material feeding box 1. An elastic component with a buffering function is provided on the top of the ramp block 2. The elastic component includes a sliding sleeve 3. The bottom of the sliding sleeve 3 is fixedly connected to the top of the ramp block 2. A sliding column 5 is elastically connected to the inner wall of the bottom end of the sliding sleeve 3 through a buffer spring 4. When the sliding column 5 is not under force, the buffer spring 4 will push the sliding column 5 upward. One end of the buffer spring 4 is fixedly connected to the inner wall of the bottom end of the sliding sleeve 3, and the other end of the buffer spring 4 is fixedly connected to the bottom of the sliding column 5. The outer periphery of the sliding column 5 is slidably connected to the inside of the sliding sleeve 3. The sliding sleeve 3 restricts the sliding column 5 to slide up and down only along the inner wall of the sliding sleeve 3. A receiving plate 6 for catching the product is fixedly connected to the top of the elastic component. The top of the sliding column 5 is fixedly connected to the bottom of the receiving plate 6.
[0033] Reference Figures 1-3 The feeding box 1 has a discharge port 7 on its right side. A connecting seat 8 is fixedly connected to the top of the feeding box 1. Two sets of connecting seats 8 are symmetrically arranged in front and behind the discharge port 7. A rotating ring 9 is rotatably connected to the outer side of the connecting seat 8. A rotating shaft 10 is fixedly connected inside the rotating ring 9. A baffle 11 is fixedly connected to the outer circumference of the rotating shaft 10 to prevent the product from sliding out directly. Rotation of the rotating ring 9 will drive the baffle 11 to rotate. Positioning holes 12 are provided inside both the rotating shaft 10 and the rotating ring 9. The direction of the positioning holes 12 is the same as the direction of the baffle 11. Two sets of limit grooves 13 are provided on the top of the feeding box 1. The limiting groove 13 is symmetrically arranged at the front and rear of the discharge port 7. The bottom end of the limiting groove 13 is elastically connected to the fixing pin 15 through the limiting spring 14. When the fixing pin 15 is not under force, the limiting spring 14 will push the fixing pin 15 upward. One end of the limiting spring 14 is fixedly connected to the inner wall of the bottom end of the limiting groove 13, and the other end of the limiting spring 14 is fixedly connected to the bottom of the fixing pin 15. The outer periphery of the fixing pin 15 is slidably connected to the inside of the limiting groove 13. The limiting groove 13 restricts the fixing pin 15 to slide up and down along the inner wall of the limiting groove 13. The outer periphery of the fixing pin 15 is slidably connected to the inside of the positioning hole 12, so that the rotating ring 9 and the rotating shaft 10 cannot rotate.
[0034] Reference Figure 1 and Figure 5The material feeding box 1 has two sets of connecting plates 16 fixedly connected to both the front and rear sides for fixing and connecting. The connecting plates 16 are arranged symmetrically at the front and rear. An air inlet box 17 is fixedly connected to the outer side of the connecting plates 16. A fan 18 is installed inside the air inlet box 17 to allow cold air from the outside to enter the air inlet box 17. A cooling air duct 19 is fixedly connected to the top of the air inlet box 17. An air outlet 20 is opened on the inner side of the cooling air duct 19. Several sets of air outlets 20 are arranged linearly and evenly. Inside the cooling duct 19, there are two sets of cooling ducts 19. The two sets of cooling ducts 19 are connected by a connecting pipe 21 and a slanted block 22. The bottom end of the lower cooling duct 19 is fixedly connected to the top of the connecting plate 16. The connecting pipe 21 and the slanted block 22 are inclined to the outside of the upper side, so that the upper cooling duct 19 is further out. At the same time, the inclined setting will cause the plastic product to fall into the feeding box 1 along the inclined surface when it falls. A set of connecting pipes 21 is fixedly connected to the outside of the slanted block 22.
[0035] Working principle: When you want to easily remove the plastic products from the feed box, push the fixing pin 15 downward. The fixing pin 15 moves downward and squeezes the limiting spring 14. At the same time, the fixing pin 15 disengages from the positioning hole 12. At this time, the fixing pin 15 is disengaged from the rotating ring 9 and the rotating shaft 10. Then, push the baffle 11 outward. The plastic products will fall down the inclined surface of the ramp block 2 on the receiving plate 6, so that the products inside the feed box 1 can be easily removed. When you want to reduce the damage to plastic products during their fall, the blow molding mold is opened and the plastic product falls. At this time, the blower 18 is turned on, and the blower 18 blows cold air into the air inlet box 17. The cold air is delivered inward from the air outlet 20 on the inside of the cooling air duct 19 to cool the falling plastic product and increase its hardness. At the same time, the inclined block 22 prevents the product from falling out of the outside of the feeding box 1. After the product falls onto the receiving plate 6, it presses down on the sliding column 5, causing the buffer spring 4 to compress and generate elasticity, thereby achieving buffering and reducing damage to the plastic product during feeding, thus improving the yield rate.
[0036] 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 cooling device for blow molding of plastic products, comprising a feeding box (1), characterized in that: The feeding box (1) is fixedly connected to a ramp block (2). An elastic component is provided on the top of the ramp block (2). A receiving plate (6) is fixedly connected to the top of the elastic component. A discharge port (7) is opened on the right side of the feeding box (1). A connecting seat (8) is fixedly connected to the top of the feeding box (1). A rotating ring (9) is rotatably connected to the outside of the connecting seat (8). A rotating shaft (10) is fixedly connected inside the rotating ring (9). A baffle (11) is fixedly connected to the outer periphery of the rotating shaft (10). A positioning hole (12) is opened inside both the rotating shaft (10) and the rotating ring (9). A limiting groove (13) is opened on the top of the feeding box (1). A fixing pin (15) is elastically connected to the bottom of the limiting groove (13) through a limiting spring (14).
2. The plastic product blow molding blanking and cooling device according to claim 1, characterized in that: The feeding box (1) is fixedly connected to the front and rear sides with connecting plates (16). The outer side of the connecting plate (16) is fixedly connected to the air inlet box (17). The air inlet box (17) is equipped with a fan (18). The top of the air inlet box (17) is fixedly connected to a cooling air duct (19). The inner side of the cooling air duct (19) is provided with an air outlet (20). There are two sets of cooling air ducts (19). The two sets of cooling air ducts (19) are connected by a connecting pipe (21) and a slanted baffle (22).
3. The plastic product blow molding blanking cooling device according to claim 1, characterized in that: The elastic component includes a sliding sleeve (3), the bottom of which is fixedly connected to the top of the ramp block (2), and a sliding column (5) is elastically connected to the inner wall of the bottom end of the sliding sleeve (3) by a buffer spring (4), and the top of the sliding column (5) is fixedly connected to the bottom of the receiving plate (6).
4. The plastic product blow molding blanking and cooling device according to claim 3, characterized in that: One end of the buffer spring (4) is fixedly connected to the inner wall of the bottom end of the sliding sleeve (3), and the other end of the buffer spring (4) is fixedly connected to the bottom of the sliding column (5). The outer periphery of the sliding column (5) is slidably connected to the inside of the sliding sleeve (3).
5. A plastic product blow molding blanking and cooling device according to claim 1, characterized in that: One end of the limiting spring (14) is fixedly connected to the inner wall of the bottom end of the limiting groove (13), and the other end of the limiting spring (14) is fixedly connected to the bottom of the fixing pin (15). The outer periphery of the fixing pin (15) is slidably connected to the inside of the limiting groove (13).
6. The plastic product blow molding blanking cooling device according to claim 1, characterized in that: The fixing pin (15) is slidably connected to the inside of the positioning hole (12) on its outer periphery.
7. A cooling device for blow molding of plastic products according to claim 2, characterized in that: The bottom end of the cooling duct (19) on the lower side is fixedly connected to the top of the connecting plate (16).
8. A plastic product blow molding blanking and cooling device according to claim 2, characterized in that: The connecting pipe (21) and the inclined block (22) are inclined on the upper side and outward. A set of connecting pipes (21) are fixedly connected to the outer side of the inclined block (22).