A high-impact, deformation-resistant plastic storage box injection mold

Abstract

This utility model discloses a high-impact, deformation-resistant plastic storage box injection mold, belonging to the field of injection molds. The high-impact, deformation-resistant plastic storage box injection mold includes a moving mold and a fixed mold. A punch is provided on one side of the moving mold. Fixed mold frames are installed on the four outer surfaces of both the moving and fixed molds. T-slots are provided on the fixed mold frames. Two fixed mold frames are connected by a fixed mold assembly. The fixed mold assembly includes a fixed template and two clamping plates installed on one side of the fixed template. The two clamping plates cooperate with the T-slots on the two fixed mold frames. Screws are threaded to both ends of the clamping plates. A lever is fixedly installed on the outer side of the fixed template. A cooling groove is provided on the inner side of the fixed mold, and a cooling component is installed in the cooling groove. This utility model, through the provided fixed mold assembly, allows for the installation of multiple fixed mold assemblies for reinforcement as needed. The fixed mold assembly effectively improves the stability of the mold during transportation and reduces damage during transport.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for molding high-impact and deformation-resistant plastic storage boxes. Background Technology

[0002] High-impact, deformation-resistant plastic storage boxes are storage products specifically designed to improve durability and performance. These boxes are typically made of high-impact materials (such as polypropylene PP) to ensure they are not easily deformed or damaged during handling, stacking, and use.

[0003] A search revealed Chinese patent application number 202020399454.1, which discloses a high-impact, deformation-resistant plastic storage box injection mold, belonging to the field of mold manufacturing technology. It solves the problem of easy denting of the side walls of storage boxes manufactured by existing injection molds. This high-impact, deformation-resistant plastic storage box injection mold includes a moving mold and a fixed mold that cooperates with the moving mold. The fixed mold has a core protruding towards one side of the moving mold, and the moving mold has a cavity into which the core passes. The fixed mold, the core, and the cavity cooperate to form a molding chamber for molding the storage box. The inner wall of the moving mold has a pre-arched plate protruding towards the molding chamber, and the moving mold has an injection molding component communicating with the interior of the molding chamber. This invention has the advantage of strong deformation resistance.

[0004] Although the aforementioned patent provides a pre-arched plate protruding towards the molding chamber side on the inner wall of the moving mold, which gives the molded product a high resistance to deformation, the lack of fixation between the moving mold and the fixed mold makes it easy to damage the parting surface of the mold due to collisions during transportation. This causes molten plastic to easily overflow from the parting surface, forming flash on the product and affecting its quality.

[0005] Therefore, there is an urgent need for high-impact and deformation-resistant plastic storage box injection molds to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art that the lack of fixation between the moving mold and the fixed mold during mold handling can easily lead to damage to the mold parting surface and affect product quality. Therefore, this invention proposes a high-impact and deformation-resistant plastic storage box injection mold.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-impact, deformation-resistant plastic storage box injection mold includes a moving mold and a fixed mold. A punch is provided on one side of the moving mold. Fixed mold frames are installed on the four outer surfaces of both the moving mold and the fixed mold. T-slots are formed on the fixed mold frames. Two fixed mold frames are connected by a fixed mold assembly. The fixed mold assembly includes a fixed template and two clamping plates installed on one side of the fixed template. The two clamping plates mate with the T-slots on the two fixed mold frames. Screws are threaded onto both ends of the clamping plates. A lever is fixedly installed on the outer side of the fixed template. A cooling groove is formed on the inner side of the fixed mold, and a cooling assembly is installed in the cooling groove. Demolding components are fixedly installed on the moving mold at the four corners of the punch.

[0009] As a preferred technical solution of this application, a concave mold is provided on the inner side of the fixed mold, and after the mold is closed, there is a cavity between the punch and the concave mold.

[0010] As a preferred technical solution of this application, the moving mold has a positioning hole on the side facing the fixed mold, the fixed mold has a positioning pin that mates with the positioning hole fixedly installed on the side facing the moving mold, and the fixed mold has an injection port in the middle that communicates with the cavity mold.

[0011] As a preferred technical solution of this application, the demolding assembly includes a hydraulic cylinder fixedly installed in the moving mold, the output end of the hydraulic cylinder is connected to a seat plate, and the outer side of the seat plate is connected to a push plate through multiple buffer springs.

[0012] As a preferred technical solution of this application, the cooling assembly includes a baffle and four cooling plates installed on one side of the baffle, with adjacent cooling plates perpendicular to each other.

[0013] As a preferred technical solution of this application, an S-shaped cooling water pipe is installed on the cooling plate, and water pipe connection ports are provided at both ends of the cooling water pipe. Cooling water connection holes communicating with the water pipe connection ports are opened on the four outer sides of the fixed mold.

[0014] As a preferred technical solution of this application, a cotton sleeve is fitted onto the outer side of the lever.

[0015] Compared with the prior art, this utility model provides a high-impact and deformation-resistant plastic storage box injection mold, which has the following beneficial effects:

[0016] 1. This high-impact, deformation-resistant plastic storage box injection mold, through the setting of a fixed mold assembly, after the moving mold and the fixed mold are closed, the clamping plates on the fixed mold plate are inserted into the T-slots on the fixed mold frame. Multiple fixed mold assemblies can be installed for reinforcement as needed. After adjusting the position of the fixed mold plate on the fixed mold frame, the clamping plates are fixed on the fixed mold frame by screws. With the help of the fixed mold assembly, the stability of the mold during transportation can be effectively improved and the damage during mold transportation can be reduced. This solves the problem in the prior art that the lack of fixation between the moving mold and the fixed mold during mold handling can easily lead to damage to the mold parting surface and affect product quality.

[0017] 2. The high impact-resistant and deformation-resistant plastic storage box injection mold, through the setting of baffles and the cooling plate installed on one side of the baffles, can cover the outside of the cavity with the help of multiple cooling plates, improving the uniformity of cooling. In addition, S-shaped cooling water pipes are installed on the outside of the cooling plates, which helps to improve the cooling effect of the mold by cooling water. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the moving mold and the fixed mold of this utility model;

[0020] Figure 3 This is a schematic diagram of the positioning hole mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cooling component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixed mold assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the demolding component structure of this utility model;

[0024] Figure 7 For the present utility model Figure 6 Enlarged view of point A in the middle.

[0025] In the picture:

[0026] 1. Moving mold; 2. Fixed mold frame; 3. Fixed mold; 4. Fixed mold plate; 5. Positioning pin; 6. Cavity mold; 7. Cooling water connection hole; 8. Punch mold; 9. Injection port; 10. Baffle; 11. Positioning hole; 12. Cooling tank; 13. Cooling plate; 14. Water pipe connection port; 15. Cooling water pipe; 16. Clamping plate; 17. Screw; 18. Pulling rod; 19. Cotton sleeve; 20. Hydraulic cylinder; 21. Push plate; 22. Buffer spring; 23. Seat plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Reference Figures 1-7 A high-impact and deformation-resistant plastic storage box injection mold includes a moving mold 1 and a fixed mold 3. Molten plastic is injected after the moving mold 1 and the fixed mold 3 are closed, and the finished storage box is formed after cooling. A punch 8 is provided on one side of the moving mold 1. Fixed mold frames 2 are installed on the four outer surfaces of the moving mold 1 and the fixed mold 3. T-shaped grooves are opened on the fixed mold frames 2. The two fixed mold frames 2 are connected by a fixed mold assembly, which can maintain the overall stability of the mold during transportation and prevent damage to the parting surface of the mold during transportation. A cavity 6 is opened on the inner side of the fixed mold 3. After the mold is closed, there is a cavity between the punch 8 and the cavity 6. A positioning hole 11 is opened on the side of the moving mold 1 facing the fixed mold 3. A positioning pin 5 that mates with the positioning hole 11 is fixedly installed on the side of the fixed mold 3 facing the moving mold 1. The positioning pin 5 and the positioning hole 11 can make the mold closing more precise. An injection port 9 that communicates with the cavity 6 is provided in the middle of the fixed mold 3.

[0030] The mold fixing assembly includes a mold fixing plate 4 and two clamping plates 16 installed on one side of the mold fixing plate 4. The two clamping plates 16 cooperate with the T-slots on the two mold fixing frames 2. After the mold is closed, the two clamping plates 16 are snapped into the mold fixing frames 2. Both ends of the clamping plates 16 are threaded with screws 17. By rotating the screws 17, the position of the mold fixing plate 4 on the mold fixing frame 2 is fixed through the cooling water connection hole 7. A lever 18 is fixedly installed on the outside of the mold fixing plate 4. The lever 18 facilitates the sliding of the mold fixing plate 4, making it more convenient to fix the mold. A cotton sleeve 19 is sleeved on the outside of the lever 18, making it more comfortable to hold.

[0031] Reference Figure 3 and Figure 4Furthermore, a cooling groove 12 is provided on the inner side of the fixed mold 3, and a cooling assembly is installed in the cooling groove 12. The cooling assembly includes a baffle 10 and four cooling plates 13 installed on one side of the baffle 10. The adjacent cooling plates 13 are perpendicular to each other. The outer side of the cavity mold 6 is covered by multiple cooling plates 13. An S-shaped cooling water pipe 15 is installed on the cooling plate 13. Both ends of the cooling water pipe 15 are provided with water pipe connection ports 14. Cooling water connection holes 7 connected to the water pipe connection ports 14 are provided on the four outer sides of the fixed mold 3. The two cooling water connection holes 7 on one side are connected to the inlet and outlet of the cooling water respectively. The mold is cooled down quickly by the cooling water, which facilitates the acceleration of the molding time of the mold.

[0032] Reference Figure 6 and Figure 7 Furthermore, demolding components are fixedly installed on the moving mold 1 at the four corners of the punch 8. The demolding components include hydraulic cylinders 20 fixedly installed in the moving mold 1. The output end of the hydraulic cylinder 20 is connected to a seat plate 23. The outer side of the seat plate 23 is connected to the push plate 21 through multiple buffer springs 22. During demolding, the hydraulic cylinder 20 drives the push plate 21 to extend. The push plate 21 abuts against the four corners of the forming mold, pushing the forming mold out. The buffer springs 22 and the push against the four corners of the mold can effectively protect the mold during demolding, reduce damage to the mold during demolding, and improve the mold quality.

[0033] Specifically, when using this high-impact, deformation-resistant plastic storage box injection mold: During mold transportation, the moving mold 1 and the fixed mold 3 are closed and fixed by the mold fixing assembly. After transportation, the mold fixing assembly is disassembled, and then the mold is installed. During operation, the moving mold 1 and the fixed mold 3 are closed, and the punch 8 is inserted into the die 6, forming a cavity between the punch 8 and the die 6. At this time, molten plastic is injected through the injection port 9, and the molten plastic fills the cavity. At this time, the four sides of the cavity are cooled by the cooling mechanism, and the cooling effect is rapid. After cooling, the mold is opened, and the forming mold is fitted onto the punch 8. After the mold is opened, the demolding mechanism is activated, and the forming mold is pushed out by the hydraulic cylinder 20 and the push plate 21 to complete the injection molding.

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

Claims

1. A high-impact, deformation-resistant plastic storage box injection mold, comprising a moving mold (1) and a fixed mold (3), characterized in that, The moving mold (1) has a punch (8) on one side. The moving mold (1) and the fixed mold (3) are each equipped with a mold holder (2) on their four outer sides. The mold holder (2) has a T-shaped groove. The two mold holders (2) are connected by a mold assembly. The mold assembly includes a mold plate (4) and two clamping plates (16) installed on one side of the mold plate (4). The two clamping plates (16) cooperate with the T-shaped grooves on the two mold holders (2). The two ends of the clamping plates (16) are threaded with screws (17). The outside of the mold plate (4) is fixedly installed with a lever (18). The inside of the fixed mold (3) is provided with a cooling groove (12). A cooling assembly is installed in the cooling groove (12). The moving mold (1) is fixedly installed with demolding assemblies at the four corners of the punch (8).

2. The high impact-resistant and deformation-resistant plastic storage box injection mold according to claim 1, characterized in that, The inner side of the fixed mold (3) is provided with a concave mold (6), and after the mold is closed, there is a cavity between the punch (8) and the concave mold (6).

3. The high impact-resistant and deformation-resistant plastic storage box injection mold according to claim 2, characterized in that, The moving mold (1) has a positioning hole (11) on the side facing the fixed mold (3), and a positioning pin (5) that mates with the positioning hole (11) is fixedly installed on the side facing the moving mold (1). The fixed mold (3) has an injection port (9) in the middle that communicates with the concave mold (6).

4. The high impact resistance and deformation-resistant plastic storage box injection mold according to claim 1, characterized in that, The demolding assembly includes a hydraulic cylinder (20) fixedly installed in the moving mold (1). The output end of the hydraulic cylinder (20) is connected to a seat plate (23). The outer side of the seat plate (23) is connected to the push plate (21) through multiple buffer springs (22).

5. The high impact resistance and deformation-resistant plastic storage box injection mold according to claim 1, characterized in that, The cooling assembly includes a baffle (10) and four cooling plates (13) mounted on one side of the baffle (10), with adjacent cooling plates (13) perpendicular to each other.

6. The high impact resistance and deformation-resistant plastic storage box injection mold according to claim 5, characterized in that, An S-shaped cooling water pipe (15) is installed on the cooling plate (13). Both ends of the cooling water pipe (15) are provided with water pipe connection ports (14). Cooling water connection holes (7) communicating with the water pipe connection ports (14) are opened on the four outer sides of the fixed mold (3).

7. The high impact resistance and deformation-resistant plastic storage box injection mold according to claim 1, characterized in that, The outer side of the lever (18) is fitted with a cotton sleeve (19).

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