Injection mold easy to demold

Abstract

The utility model discloses an injection mold easy to demold, and belongs to the field of injection molds, the lower bottom end of an injection molding box is fixedly connected with a supporting table, an ejection assembly is arranged in the injection molding box, the ejection assembly comprises a lower mold, the inner bottom end of the lower mold is fixedly connected with an ejection bag belt, and the upper top end of the ejection bag belt is fixedly connected with a liquid inlet hose; according to the injection mold, an operator can conveniently take out the mold, the injection molding quality is improved, the volume of liquid in the vacuum pipe can be changed through the sliding jacking sliding plate after the lower mold is jacked by the jacking mold through mutual cooperation of the jacking bag belt, the liquid inlet hose, the jacking sliding plate and the vacuum pipe, and the injection molding quality is improved. Liquid flows to the ejection bag belt through the liquid inlet hose, the mold in the lower mold is ejected out for the second time, the ejected mold provides a taking point for an operator, the mold is prevented from being damaged in the taking-out process, and the mold stripping efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically an easy-to-demold injection mold. Background Technology

[0002] Injection molds are tools used to manufacture plastic products. They are formed by injecting molten plastic into a mold cavity, which then cools and solidifies to create plastic products with specific shapes and sizes. They can produce plastic products with high dimensional accuracy and repeatability, ensuring stable product quality.

[0003] A search revealed a Chinese utility model patent (publication number: CN220841218U) disclosing an easy-to-demold injection mold. The upper mold is placed above the lower mold. Both the upper and lower molds have multiple cavities. An insertion mechanism is provided between the upper and lower molds. A support is located below the lower mold, and support plates are fixed between the upper two sides of the support and the bottom of the lower mold. A lower plate is located above the support, and sliding mechanisms are provided between the lower plate and the two support plates on both sides. This injection mold cools and solidifies molten plastic by pouring it into the mold cavities. When the molded part needs to be removed from the mold cavities, the upper mold is simply removed from above the lower mold, and the lower plate can be moved by the adjustment mechanism.

[0004] Although the above-mentioned adjustment mechanism, through the cooperation of various components, allows the mold to be ejected after injection molding, thus improving the efficiency of mold ejection, due to the different sizes of the molds, the operator still needs to manually remove them after ejection. Smaller and lighter molds are more easily damaged during the operator's removal process because there is no suitable picking point, which is very detrimental to improving the injection molding quality of the mold.

[0005] Therefore, this utility model provides an easy-to-demold injection mold to solve the above problems. Utility Model Content

[0006] This invention provides an easy-to-demold injection mold, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-demold injection mold, including an injection box, a support platform fixedly connected to the bottom end of the injection box, and an ejection assembly provided inside the injection box;

[0008] The ejection assembly includes a lower mold, an ejection bladder fixedly connected to the inner bottom end of the lower mold, a liquid inlet hose fixedly connected to the upper top end of the ejection bladder, a lifting slide plate fixedly connected to the side wall of the lower mold, a vacuum tube fixedly connected to the inner wall of the injection molding box, and the lifting slide plate sliding inside the vacuum tube. The end of the liquid inlet hose is fixedly connected to the upper top end of the vacuum tube, and a lifting assembly is provided at the lower bottom end of the injection molding box.

[0009] As a preferred technical solution of this application, the lifting assembly includes a drive motor fixedly connected to the outer wall of the injection molding box, a bidirectional lead screw fixedly sleeved at the output end of the drive motor, and a rotating seat fixedly connected to the inner wall of the injection molding box at the location corresponding to the bidirectional lead screw.

[0010] As a preferred technical solution of this application, the lifting assembly further includes a displacement seat threaded onto the outer wall of the bidirectional lead screw, a synchronizing rod rotatably connected to the upper top of the displacement seat, a lifting platform rotatably connected to the end of the synchronizing rod via a rotating shaft, the lifting platform being fixedly connected to the lower bottom end of the lower mold, and a limit assembly being provided inside the injection molding box.

[0011] As a preferred technical solution of this application, the limiting component includes a slide fixedly connected to the inner wall of the injection molding box, a slider fixedly connected to the outer wall of the lower mold at the corresponding position of the slide, and the slider slides inside the slide. A cooling component is provided at the bottom end of the injection molding box.

[0012] As a preferred technical solution of this application, the cooling assembly includes a cooling box fixedly connected to the bottom end of the injection molding box, and a circulating pump is fixedly connected inside the cooling box.

[0013] As a preferred technical solution of this application, the cooling assembly further includes a cooling pipe fixedly connected to the bottom of the injection molding box, one end of the cooling pipe being fixedly connected to the output end of the circulation pump through a circulation pipe, and the other end of the cooling pipe being fixedly connected to the outer wall of the cooling box.

[0014] As a preferred technical solution of this application, the outer wall of the injection molding box is fixedly connected to a mounting base, the mounting base is equipped with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly sleeved with an upper mold.

[0015] As a preferred technical solution of this application, the interior of the upper mold is slidably connected to the top of the injection box via a limiting rod, and the top of the upper mold is fixedly connected to an injection port.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting the ejection assembly, the cooperation of various components makes it easier for operators to remove the mold, thereby improving the quality of injection molding. Through the cooperation of the ejection belt, the liquid inlet hose, the lifting slide plate and the vacuum tube, after the lower mold is lifted by the lifting mold, the volume of liquid in the vacuum tube is changed by the sliding lifting slide plate. The liquid flows through the liquid inlet hose to the ejection belt, which ejects the mold in the lower mold a second time. The ejected mold provides a pick-up point for the operator, avoiding damage to the mold during the removal process and improving the efficiency of demolding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the ejection bladder belt of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bidirectional lead screw of this utility model;

[0020] Figure 4 This is a schematic diagram of the synchronizing rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the upper mold of this utility model.

[0022] In the diagram: 1. Injection box; 2. Lower mold; 3. Ejector belt; 4. Liquid inlet hose; 5. Lifting slide plate; 6. Vacuum tube; 7. Drive motor; 8. Two-way lead screw; 9. Displacement seat; 10. Synchronizing rod; 11. Rotary shaft; 12. Lifting platform; 13. Slide table; 14. Slider; 15. Cooling box; 16. Circulating pump; 17. Cooling pipe; 18. Circulating pipe; 19. Mounting seat; 20. Hydraulic cylinder; 21. Upper mold; 22. Limiting rod. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, an easy-to-demold injection mold includes an injection box 1, a support platform is fixedly connected to the bottom end of the injection box 1, and an ejection assembly is provided inside the injection box 1.

[0025] The ejection assembly includes a lower mold 2, an ejection bladder 3 is fixedly connected to the inner bottom of the lower mold 2, an inlet hose 4 is fixedly connected to the upper top of the ejection bladder 3, a lifting slide plate 5 is fixedly connected to the side wall of the lower mold 2, a vacuum tube 6 is fixedly connected to the inner wall of the injection box 1, and the lifting slide plate 5 slides inside the vacuum tube 6. The end of the inlet hose 4 is fixedly connected to the upper top of the vacuum tube 6, and a lifting assembly is provided at the lower bottom of the injection box 1.

[0026] The lifting assembly includes a drive motor 7 fixedly connected to the outer wall of the injection molding box 1. A bidirectional lead screw 8 is fixedly sleeved at the output end of the drive motor 7. A rotating seat is fixedly connected to the inner wall of the injection molding box 1 at the location corresponding to the bidirectional lead screw 8.

[0027] The lifting assembly also includes a displacement seat 9 threaded onto the outer wall of the bidirectional lead screw 8. The top end of the displacement seat 9 is rotatably connected to a synchronizing rod 10. The end of the synchronizing rod 10 is rotatably connected to a lifting platform 12 via a rotating shaft 11. The lifting platform 12 is fixedly connected to the bottom end of the lower mold 2. A limit assembly is provided inside the injection molding box 1.

[0028] The limiting component includes a slide 13 fixedly connected to the inner wall of the injection box 1, a slider 14 fixedly connected to the outer wall of the lower mold 2 at the corresponding position of the slide 13, and the slider 14 slides inside the slide 13. A cooling component is provided at the bottom of the injection box 1.

[0029] Specifically, the support platform at the bottom of the injection molding box 1 provides sufficient support and stability during the injection process. The ejector assembly, through the cooperation of various components, allows for secondary ejection after the lifting assembly has completed its initial lifting. This facilitates the operator's access to the mold and prevents damage due to lack of access points. After the lower mold 2 is lifted, the lifting slide plate 5 connected to its side wall slides inside the vacuum tube 6, squeezing the liquid inside the vacuum tube 6 from the inlet hose 4 into the ejector belt 3. The deformation of the belt then ejects the mold again. This lifting of the mold facilitates... With protruding side walls, it is easy for operators to handle. After injection molding is completed, the drive motor 7 is started, causing the bidirectional lead screw 8 connected to its output end to rotate. This drives the displacement seat 9 on the outer wall of the bidirectional lead screw 8 to move in opposite directions, which in turn drives the synchronous rod 10 to rotate inside the displacement seat 9. At the same time, the two synchronous rods 10 drive the lifting platform 12 through the rotating shaft 11 to continuously lift the lower mold 2, making it easier to eject the mold. With the setting of the slide table 13 and the slider 14, the lower mold 2 can be stably slid inside the injection box 1, improving the stability of the ejection. This component has a simple structure, strong practicality, and can improve injection molding efficiency and injection molding quality.

[0030] The cooling assembly includes a cooling box 15 fixedly connected to the bottom of the injection molding box 1, and a circulation pump 16 fixedly connected inside the cooling box 15.

[0031] The cooling assembly also includes a cooling pipe 17 fixedly connected to the bottom of the injection molding box 1. One end of the cooling pipe 17 is fixedly connected to the output end of the circulation pump 16 through the circulation pipe 18, and the other end of the cooling pipe 17 is fixedly connected to the outer wall of the cooling box 15.

[0032] An installation base 19 is fixedly connected to the outer wall of the injection molding box 1. A hydraulic cylinder 20 is installed inside the installation base 19. The output end of the hydraulic cylinder 20 is fixedly sleeved with the upper mold 21.

[0033] The interior of the upper mold 21 is slidably connected to the top of the injection box 1 via a limiting rod 22, and the top of the upper mold 21 is fixedly connected to an injection port.

[0034] Specifically, by setting up the cooling components, cooling can be provided for injection molding through circulating water, thereby increasing the cooling speed of the mold. The circulating pump 16 circulates the cooling water from inside the cooling pipe 17 to provide cooling for the mold. Through the cooperation of the mounting base 19 and the hydraulic cylinder 20, the upper mold 21 can be moved by the hydraulic cylinder 20, which facilitates the injection molding process.

[0035] 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. An easy-to-demold injection mold, comprising an injection box (1), characterized in that: The bottom end of the injection molding box (1) is fixedly connected to a support platform, and the injection molding box (1) is provided with an ejection assembly inside; The ejection assembly includes a lower mold (2), an ejection bladder (3) is fixedly connected to the inner bottom end of the lower mold (2), an inlet hose (4) is fixedly connected to the upper top end of the ejection bladder (3), a lifting slide plate (5) is fixedly connected to the side wall of the lower mold (2), a vacuum tube (6) is fixedly connected to the inner wall of the injection box (1), and the lifting slide plate (5) slides inside the vacuum tube (6). The end of the inlet hose (4) is fixedly connected to the upper top end of the vacuum tube (6), and a lifting assembly is provided at the lower bottom end of the injection box (1).

2. The easy-release injection mold according to claim 1, characterized in that: The lifting assembly includes a drive motor (7) fixedly connected to the outer wall of the injection molding box (1), and a bidirectional lead screw (8) is fixedly sleeved at the output end of the drive motor (7). A rotating seat is fixedly connected to the inner wall of the injection molding box (1) at the position corresponding to the bidirectional lead screw (8).

3. The easy-to-demold injection mold according to claim 2, characterized in that: The lifting assembly also includes a displacement seat (9) threaded onto the outer wall of the bidirectional lead screw (8). The upper top of the displacement seat (9) is rotatably connected to a synchronizing rod (10). The end of the synchronizing rod (10) is rotatably connected to a lifting platform (12) via a rotating shaft (11). The lifting platform (12) is fixedly connected to the lower bottom of the lower mold (2). The injection molding box (1) is equipped with a limit assembly inside.

4. The easy-to-demold injection mold according to claim 3, characterized in that: The limiting component includes a slide (13) fixedly connected to the inner wall of the injection molding box (1), and a slider (14) fixedly connected to the outer wall of the lower mold (2) at the location corresponding to the slide (13). The slider (14) slides inside the slide (13), and a cooling component is provided at the bottom of the injection molding box (1).

5. The easy-release injection mold according to claim 4, characterized in that: The cooling assembly includes a cooling box (15) fixedly connected to the bottom of the injection molding box (1), and a circulation pump (16) is fixedly connected inside the cooling box (15).

6. The easy-to-demold injection mold according to claim 5, characterized in that: The cooling assembly also includes a cooling pipe (17) fixedly connected to the bottom of the injection molding box (1). One end of the cooling pipe (17) is fixedly connected to the output end of the circulation pump (16) through a circulation pipe (18), and the other end of the cooling pipe (17) is fixedly connected to the outer wall of the cooling box (15).

7. The easy-release injection mold according to claim 1, characterized in that: The outer wall of the injection molding box (1) is fixedly connected to a mounting base (19), and a hydraulic cylinder (20) is installed inside the mounting base (19). The output end of the hydraulic cylinder (20) is fixedly sleeved with an upper mold (21).

8. The easy-release injection mold according to claim 7, characterized in that: The interior of the upper mold (21) is slidably connected to the top of the injection box (1) via a limiting rod (22), and the top of the upper mold (21) is fixedly connected to an injection port.

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