Plastic mold with anti-locking mechanism

Abstract

The utility model relates to the technical field of molds, in particular to a plastic mold with an anti-locking mechanism, which comprises a base, a first mold arranged on the upper portion of the base, a second mold arranged on the upper portion of the base, a first rack slidably connected to the middle of a first sliding rail, a rotating shaft rotatably connected to the middle of a second mounting frame, and a second rack slidably connected to the rotating shaft. A first gear is fixedly connected to the outer wall of the rotating shaft, a second gear is fixedly connected to the outer wall of the rotating shaft, a second rack is slidably connected to the middle of the second sliding rail, and a moving block is fixedly connected to the end of the second rack. If a finished product is clamped at the first mold, the first rack moves downwards, the second gear, the rotating shaft and the first gear rotate, the second rack and the moving block move leftwards, the injection molding finished product is ejected out, and if the finished product is clamped at the second mold, the same way is adopted, so that the device is convenient to use, and the finished product clamped at the mold can be ejected out; and the mold is prevented from being locked and not easy to demold.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a plastic mold with an anti-locking mechanism. Background Technology

[0002] A plastic mold is a tool used to produce plastic products. It consists of several parts, including a molding cavity. During injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the molding cavity, and cools and solidifies within the cavity. Then, the upper and lower molds separate, and the product is ejected from the mold cavity via the ejection system. Finally, the mold closes again for the next injection molding cycle. The entire injection molding process is cyclical. Generally, a plastic mold consists of two parts: a moving mold and a fixed mold. The moving mold is mounted on the moving platen of the injection molding machine, and the fixed mold is mounted on the fixed platen. During injection molding, the moving and fixed molds close to form the gating system and the cavity. When the mold opens, the moving and fixed molds separate to remove the plastic product.

[0003] Existing plastic molds, although capable of injection molding, sometimes result in the finished product getting stuck in the mold, making it difficult to demold. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a plastic mold with an anti-locking mechanism.

[0005] The technical solution of this utility model is as follows: A plastic mold with an anti-locking mechanism includes a base, a first mold on the upper part of the base, a second mold on the upper part of the base, a first slide rail fixedly connected to the sides of the first mold and the second mold, a first rack slidably connected to the middle of the first slide rail, a second mounting bracket fixedly connected to the sides of the first mold and the second mold, a rotating shaft rotatably connected to the middle of the second mounting bracket, a first gear fixedly connected to the outer wall of the rotating shaft, a second gear fixedly connected to the outer wall of the rotating shaft, the second gear meshing with the first rack, a second slide rail fixedly connected to the sides of the first mold and the second mold, a second rack slidably connected to the middle of the second slide rail, the second rack meshing with the first gear, a moving block fixedly connected to the end of the second rack, the left moving block cooperating with the second mold, and the right moving block cooperating with the first mold.

[0006] Preferably, a first bracket is fixedly connected to the top of the base, and the first bracket is fixedly connected to the second mold.

[0007] Preferably, a second bracket is fixedly connected to the top of the base, and an electric telescopic rod is fixedly connected to the side of the second bracket. The output shaft of the electric telescopic rod is fixedly connected to the first mold.

[0008] Preferably, a first mounting bracket is fixedly connected to the side of the first mold and the second mold, and a sliding rod is slidably connected to the middle of the first mounting bracket, the sliding rod being fixedly connected to the first rack.

[0009] Preferably, a spring is fixedly connected to the top of the first mounting bracket, and the spring is fixedly connected to the slide rod.

[0010] Preferably, a pull rod is fixedly connected to the bottom of the first rack.

[0011] Preferably, the first mold and the second mold are used together.

[0012] Compared with the prior art, this utility model has the following beneficial technical effects: If the finished product is stuck in the first mold, pull down the pull rod, the first rack moves downward, the second gear, the rotating shaft and the first gear rotate, the second rack and the moving block move to the left, and the injection molded finished product is ejected. The same applies if the finished product is stuck in the second mold. It is convenient to use. This device can eject the finished product stuck in the mold, avoiding the mold lock and difficulty in demolding. When using it, you only need to pull down the pull rod, which is convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the side cross-sectional structure of the second slide rail of this utility model;

[0015] Figure 3 This is a schematic diagram of the side structure of the first mold of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the first gear and the second gear of this utility model.

[0017] Reference numerals in the attached drawings: 1. Base; 101. First bracket; 2. Second bracket; 201. Electric telescopic rod; 3. First mold; 301. First mounting bracket; 302. Slide rod; 303. Spring; 304. First slide rail; 305. First rack; 306. Pull rod; 307. Second mold; 4. Second mounting bracket; 401. Rotating shaft; 402. First gear; 403. Second gear; 5. Second slide rail; 501. Second rack; 502. Moving block. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0019] like Figure 1-4As shown, this utility model proposes a plastic mold with an anti-locking mechanism, including a base 1. A first mold 3 is provided on the upper part of the base 1. The first mold 3 is on the right side and can move. A second bracket 2 is fixedly connected to the top of the base 1. An electric telescopic rod 201 is fixedly connected to the side of the second bracket 2. The second bracket 2 supports two electric telescopic rods 201. The two electric telescopic rods 201 are parallel and identical. The output shaft of the electric telescopic rod 201 is fixedly connected to the first mold 3. When the electric telescopic rod 201 is working, the first mold 3 can move. A second mold 307 is provided on the upper part of the base 1. The second mold 307 is on the left side and cannot move. A first bracket 101 is fixedly connected to the top of the base 1. The first bracket 101 is fixedly connected to the second mold 307. The first bracket 101 supports the second mold 307. The first mold 3 and the second mold 307 cooperate. When the first mold 3 moves to the left and contacts the second mold 307, injection molding can begin. The injection molding machine is not shown in the figure. After injection molding is completed, the first mold 3 moves to the right.

[0020] A first slide rail 304 is fixedly connected to the side of the first mold 3 and the second mold 307. The first slide rail 304 is vertically fixed, and a first rack 305 is slidably connected to the middle of the first slide rail 304. The first rack 305 slides up and down inside the first slide rail 304. A pull rod 306 is fixedly connected to the bottom of the first rack 305. Pulling the pull rod 306 can move the first rack 305 downward. A first mounting bracket 301 is fixedly connected to the side of the first mold 3 and the second mold 307. A slide rod 302 is slidably connected to the middle of the first mounting bracket 301. 2. It can move up and down. The slide rod 302 is fixedly connected to the first rack 305. The slide rod 302 and the first rack 305 are a whole and move up and down together. The top of the first mounting bracket 301 is fixedly connected to the spring 303. The spring 303 is fixedly connected to the slide rod 302. The spring 303 provides elastic force, which makes the slide rod 302 move upward. Pulling the pull rod 306 downward, the first rack 305 moves downward. The slide rod 302 moves downward and the spring 303 is compressed. When the pull rod 306 is released, the spring 303 returns to its original state, and the slide rod 302 and the first rack 305 move upward.

[0021] The first mold 3 and the second mold 307 are fixedly connected to the sides of a second mounting bracket 4. There are two second mounting brackets 4 on the side of the first mold 3 and two second mounting brackets 4 on the side of the second mold 307. A rotating shaft 401 is rotatably connected to the middle of the second mounting bracket 4. The rotating shaft 401 is kept horizontal. The second mounting bracket 4 supports the rotating shaft 401. The rotating shaft 401 can rotate in the middle of the second mounting bracket 4, but cannot move back and forth. A first gear 402 is fixedly connected to the outer wall of the rotating shaft 401. A second gear 403 is fixedly connected to the outer wall of the rotating shaft 401. The rotating shaft 401, the first gear 402 and the second gear 403 are a whole and rotate together. When the second gear 403 rotates, it can make the rotating shaft 401 rotate, and it can make the first gear 402 rotate.

[0022] The second gear 403 meshes with the first rack 305. The first rack 305 moves up and down, causing the second gear 403 to rotate. The rotating shaft 401 rotates, causing the first gear 402 to rotate. The sides of the first mold 3 and the second mold 307 are fixedly connected to second slide rails 5. The first mold 3 has two parallel second slide rails 5 on its side. The second mold 307 also has two parallel second slide rails 5 on its side. A second rack 501 is slidably connected to the middle of each second slide rail 5. The second rack 501 moves left and right inside the second slide rail 5. The second rack 501 meshes with the first gear 402. The rotation of the first gear 402 causes the second rack 501 to move left and right. A moving block 502 is fixedly connected to the end of the second rack 501. The moving block 502 moves together with the second rack 501. The left moving block 502 engages with the second mold 307, and its surface is flush with the surface of the second mold 307. The right moving block... 502 cooperates with the first mold 3. The surface of the right moving block 502 can be flush with the surface of the first mold 3. Observing the right side of the first mold 3, from the front, when the pull rod 306 is not pulled down, the spring 303 pushes the slide rod 302 upward, the first rack 305 moves upward, the second gear 403 rotates clockwise, the rotating shaft 401 and the first gear 402 rotate clockwise, the second rack 501 moves to the right, and the right moving block 502 moves to the right, so that the surface of the right moving block 502 can be flush with the surface of the first mold 3. At this time, the moving block 502 can no longer move to the right. Although the second mold 307 is in the opposite direction, the structure is the same. When the injection molded product is stuck in the first mold 3, the right second rack 501 moves to the left, and the right moving block 502 moves to the left to push out the injection molded product. When the injection molded product is stuck in the second mold 307, the left second rack 501 moves to the right, and the left moving block 502 moves to the right to push out the injection molded product.

[0023] In this embodiment, the electric telescopic rod 201 operates, the first mold 3 moves to the left and contacts the second mold 307, allowing for injection molding. After injection molding is complete, the first mold 3 moves to the right. If the finished product is stuck in the first mold 3, pulling down the right pull rod 306 causes the first rack 305 to move downwards, the slide rod 302 to move downwards, and the spring 303 to be compressed. The downward movement of the first rack 305 causes the second gear 403 to rotate, the rotating shaft 401 and the first gear 402 to rotate, the right second rack 501 to move to the left, and the right moving block 502 to move to the left, ejecting the injection-molded finished product. After ejection, the pull rod 306 is released, the spring 303 returns to its original state, and the slide rod 302 and the first rack 305 are moved upwards. If the finished product is stuck in the second mold 307, pulling down the left side pull rod 306 will resolve the issue, making it convenient to use.

[0024] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A plastic mold with an anti-locking mechanism, comprising a base (1), characterized in that: The upper part of the base (1) is provided with a first mold (3) and a second mold (307). The sides of the first mold (3) and the second mold (307) are fixedly connected with a first slide rail (304). The middle part of the first slide rail (304) is slidably connected with a first rack (305). The sides of the first mold (3) and the second mold (307) are fixedly connected with a second mounting bracket (4). The middle part of the second mounting bracket (4) is rotatably connected with a rotating shaft (401). The outer wall of the rotating shaft (401) is fixedly connected with a first gear (402). A second gear (403) is fixedly connected to the first gear (305), and the second gear (403) meshes with the first gear (305). A second slide rail (5) is fixedly connected to the side of the first mold (3) and the second mold (307). A second gear (501) is slidably connected to the middle of the second slide rail (5), and the second gear (501) meshes with the first gear (402). A moving block (502) is fixedly connected to the end of the second gear (501). The moving block (502) on the left side cooperates with the second mold (307), and the moving block (502) on the right side cooperates with the first mold (3).

2. A plastic mold with an anti-locking mechanism according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a first bracket (101), and the first bracket (101) is fixedly connected to the second mold (307).

3. A plastic mold with an anti-locking mechanism according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a second bracket (2), and the side of the second bracket (2) is fixedly connected to an electric telescopic rod (201). The output shaft of the electric telescopic rod (201) is fixedly connected to the first mold (3).

4. A plastic mold with an anti-locking mechanism according to claim 1, characterized in that: The first mold (3) and the second mold (307) are fixedly connected to the side of a first mounting bracket (301), and a slide rod (302) is slidably connected to the middle of the first mounting bracket (301). The slide rod (302) is fixedly connected to the first rack (305).

5. A plastic mold with an anti-locking mechanism according to claim 4, characterized in that: A spring (303) is fixedly connected to the top of the first mounting bracket (301), and the spring (303) is fixedly connected to the slide rod (302).

6. A plastic mold with an anti-locking mechanism according to claim 1, characterized in that: A pull rod (306) is fixedly connected to the bottom of the first rack (305).

7. A plastic mold with an anti-locking mechanism according to claim 1, characterized in that: The first mold (3) is used in conjunction with the second mold (307).

Images