Oil cylinder sliding block loose core

Abstract

The utility model relates to the technical field of injection molds, in particular to an oil cylinder sliding block loose core which comprises a mold base, core pulling barrels are arranged on the two sides of the top end of the outer wall of the mold base, first sliding blocks are arranged on the two sides of the outer wall of the mold base and correspond to the core pulling barrels, and the ends, away from the mold base, of the first sliding blocks are connected with oil cylinders. Second sliding blocks are arranged on the front side and the rear side of the outer wall of the mold base and correspond to the end of the core pulling barrel, and inclined guide columns are connected to the upper sides and the lower sides of the outer walls of the second sliding blocks in a sliding mode, when the stroke needed by the sliding blocks is larger than 50 mm, the sliding blocks can be moved through the oil cylinders and the oil cylinder pull rods instead of the inclined guide columns, then the mold structure can be simplified, and the mold cost is reduced. The stress condition of the inclined guide pillar is improved, stable core-pulling action is ensured, and the size of the mold is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a core pulling mechanism for a cylinder slide block. Background Art

[0002] Injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise size. Injection mold is also a processing method used in mass production of parts, mainly used in the industrial field. The injection mold process is to inject the heated and molten material into the mold cavity by high pressure, and after cooling and solidification, a molded product is obtained; according to the molding characteristics, it is divided into thermosetting plastic mold and thermoplastic plastic mold.

[0003] For some products with a large amount of undercut, such as pipe injection molds, core pulling is often used to remove the products. The existing core pulling is mostly operated by a slider in conjunction with an inclined guide column. However, for molds with a slider stroke exceeding 50mm, the use of an inclined guide column will lead to a complex mold structure. At the same time, the force condition of the inclined guide block is unstable, resulting in an unstable core pulling action, and the volume of the mold will also increase accordingly. Therefore, the existing pipe injection mold still has certain shortcomings.

[0004] In summary, it is necessary to invent the core pulling of the oil cylinder slider. Utility Model Content

[0005] To this end, the utility model provides a cylinder slider core pulling to solve the problem that when the slider stroke exceeds 50mm, the use of inclined guide columns will lead to a complex mold structure, and the force condition of the inclined guide block is unstable, resulting in an unstable core pulling action and a corresponding increase in the volume of the mold.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cylinder slider core pulling, including a mold base, core pulling cylinders are arranged on both sides of the top of the outer wall of the mold base, and a first slider is arranged on both sides of the outer wall of the mold base and at positions corresponding to the core pulling cylinders. The end of the first slider away from the mold base is connected to the cylinder, and a second slider is arranged on the front and rear sides of the outer wall of the mold base and at positions corresponding to the end of the core pulling cylinder. The upper and lower sides of the outer wall of the second slider are slidably connected with inclined guide columns.

[0007] Preferably, a pull rod T-shaped slot is provided at the center of the outer wall of the first sliding block away from the mold base, a cylinder pull rod is fixed to the output end of the oil cylinder, and the oil cylinder pull rod is slidably connected to the pull rod T-shaped slot.

[0008] Preferably, one end of the first sliding block close to the mold base is connected to a connecting block by bolts, the inner wall of the core pulling cylinder is provided with a molded product, and the outer wall of the connecting block is provided with a through hole at a position corresponding to the core pulling cylinder.

[0009] Preferably, a hollow groove is provided at the rear end of the outer wall of the first sliding block and at a position corresponding to the connecting block, the outer wall of the connecting block abuts against the inner wall of the hollow groove, and the end of the product away from the core pulling cylinder passes through a through hole and is connected to the inner wall of the hollow groove.

[0010] The beneficial effects of the utility model are:

[0011] In the utility model, when the required stroke of the slider is greater than 50 mm, the slider can be moved by the oil cylinder and the oil cylinder pull rod instead of the inclined guide column, thereby simplifying the mold structure, improving the stress condition of the inclined guide column, ensuring smooth core pulling action, and reducing the mold volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model in the front view direction;

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model in a top view;

[0014] Figure 3 It is a schematic diagram of the overall structure of the first sliding block and the core-pulling cylinder in the utility model when viewed from above;

[0015] Figure 4 For this utility model Figure 3 Schematic diagram of the explosion structure.

[0016] In the figure: 100, mold base; 200, first slider; 201, pull rod T-slot; 210, connecting block; 300, core pulling cylinder; 310, product; 400, oil cylinder; 410, oil cylinder pull rod; 500, second slider; 510, inclined guide column. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Refer to the attached Figure 1-4The oil cylinder slider core pulling provided by the utility model comprises a mold base 100, and core pulling cylinders 300 are arranged on both sides of the top of the outer wall of the mold base 100. The core pulling cylinder 300 is arranged to mold the injection liquid into a product 310. A first slider 200 is arranged on both sides of the outer wall of the mold base 100 and at a position corresponding to the core pulling cylinder 300. The end of the first slider 200 away from the mold base 100 is connected to the oil cylinder 400. The outer wall of the mold base 100 is provided with a front and rear side and at a position corresponding to the end of the core pulling cylinder 300. The second slider 500, the upper and lower sides of the outer wall of the second slider 500 are slidably connected with an inclined guide column 510, and the second slider 500 can slide upward on the inclined guide column 510, and when it is pulled, a part of the product 310 can be pulled out from the other end of the core-pulling barrel 300 through another connecting block connected thereto, and the shape of the core-pulling barrel 300 is L-shaped, the first slider 200 is connected to the long section of the core-pulling barrel 300, and the second slider 500 is connected to the short section of the core-pulling barrel 300;

[0019] Furthermore, a pull rod T-slot 201 is provided at the center of the outer wall of one side of the first slider 200 away from the mold base 100, and a cylinder pull rod 410 is fixed to the output end of the cylinder 400. The cylinder pull rod 410 is slidably connected to the pull rod T-slot 201. The set cylinder pull rod 410 is slidably inserted in the pull rod T-slot 201, and the output end of the cylinder 400 can be fixed to the outer wall of the other side end of the cylinder pull rod 410, so that the cylinder 400 can pull the first slider 200 to move by contraction, and the end of the first slider 200 close to the mold base 100 is connected to the connecting block 210 by bolts, and the inner wall of the core pulling cylinder 300 is provided with a molded product 310, and the connecting block 210 The outer wall of the first slider 200 is provided with a through hole at a position corresponding to the core pulling cylinder 300, and an empty groove is provided at the rear end of the outer wall of the first slider 200 and at a position corresponding to the connecting block 210. The outer wall of the connecting block 210 abuts against the inner wall of the empty groove, and the end of the product 310 away from the core pulling cylinder 300 passes through the through hole and is connected to the inner wall of the empty groove. Specifically, the set product 310 can form a mesh plate-like structure in the empty groove opened in the first slider 200 after cooling and forming. Therefore, when the oil cylinder 400 pulls the first slider 200 to move, the product 310 can pass through the mesh plate-like structure and cannot slide out of the through hole opened in the connecting block 210, so that the first slider 200 can pull the product 310 out of the core pulling cylinder 300.

[0020] The use process of the utility model is as follows: first, the personnel can assemble the mold according to the above instructions, and then the injection molding liquid can be injected into the core-pulling barrel 300 through the injection molding port on the top of the mold base 100, and the injection molding liquid will form a product 310 in the core-pulling barrel 300 after cooling. When the product 310 is cooled and needs to be taken out, the personnel can control the oil cylinder 400 to contract, so that the oil cylinder 400 can pull the first slider 200 to move to both sides through the output end, and the end of the product 310 is fixed to the inner wall of the empty groove and cannot slide out from the through hole opened on the side wall of the connecting block 210. Therefore, the long section of the product 310 can be slowly drawn out of the core-pulling barrel 300 as the first slider 200 moves, and the product The short section of the product 310 can be pulled out when the second slider 500 slides along the inclined guide column 510. After pulling it out, the personnel can unscrew the bolts fixing the first slider 200 and the connecting block 210 to separate the first slider 200 from the connecting block 210, and then the product 310 can be removed from the first slider 200 and the connecting block 210. After the product 310 is removed, the first slider 200 and the connecting block 210 can be re-fixed by bolts, and then the oil cylinder 400 is controlled to extend to reset the first slider 200 and the connecting block 210. The principle and method of taking and placing the product 310 at the second slider 500 are the same as those of the first slider 200 and the connecting block 210, and the utility model will not be described in detail again.

[0021] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A core pulling device for a hydraulic cylinder slide comprises a mold base (100), wherein core pulling cylinders (300) are arranged on both sides of the top of the outer wall of the mold base (100), and the characteristics are: A first slider (200) is arranged on both sides of the outer wall of the mold base (100) and at positions corresponding to the core pulling cylinder (300); an end of the first slider (200) away from the mold base (100) is connected to an oil cylinder (400); a second slider (500) is arranged on the front and rear sides of the outer wall of the mold base (100) and at positions corresponding to the end of the core pulling cylinder (300); and an inclined guide column (510) is slidably connected to the upper and lower sides of the outer wall of the second slider (500).

2. The core pulling device for the oil cylinder slide block according to claim 1 is characterized in that: A pull rod T-shaped slot (201) is provided at the center of the outer wall of one side of the first sliding block (200) away from the mold base (100), and a cylinder pull rod (410) is fixed to the output end of the oil cylinder (400), and the oil cylinder pull rod (410) is slidably connected to the pull rod T-shaped slot (201).

3. The core pulling device for the oil cylinder slide block according to claim 1 is characterized in that: One end of the first sliding block (200) close to the mold base (100) is connected to a connecting block (210) by bolts, the inner wall of the core-pulling cylinder (300) is provided with a molded product (310), and the outer wall of the connecting block (210) is provided with a through hole at a position corresponding to the core-pulling cylinder (300).

4. The core pulling device for the oil cylinder slide block according to claim 3 is characterized in that: A hollow groove is provided at the rear end of the outer wall of the first sliding block (200) and at a position corresponding to the connecting block (210); the outer wall of the connecting block (210) abuts against the inner wall of the hollow groove; and the end of the product (310) away from the core-pulling cylinder (300) passes through a through hole and is connected to the inner wall of the hollow groove.

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