Die with bidirectional core pulling function

Abstract

The utility model discloses a mold with a bidirectional core-pulling function, which is suitable for manufacturing products with complex internal structures and special core-pulling requirements. The side core-pulling blocks are movably arranged on the two sides of the mold core, and the vertical guide blocks are matched with the side core-pulling blocks in a limiting mode so as to guide the side core-pulling blocks to movably slide in the vertical demolding direction of the vertical guide blocks. The slope side sliding block makes contact with the side core-pulling block, the contact face between the slope side sliding block and the side core-pulling block forms an inclined face inclined to the vertical demolding direction, and through extrusion matching of the inclined face, the side core-pulling block is driven to movably slide in the vertical demolding direction through the horizontal lateral sliding action of the slope side sliding block during demolding. And the output shaft of the driving part operates after the side core-pulling block vertically moves so as to drive the side core-pulling block to horizontally and laterally slide. Through the structures such as the inclined plane side sliding block and the guide column core-pulling sliding block, the core-pulling action in the horizontal direction can be realized in the demolding process, and the core-pulling action in the vertical direction can also be realized through the inclined plane matching between the side core-pulling block and the inclined plane side sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold with bidirectional core pulling. Background Art

[0002] The design and use of molds are crucial, especially in the production process of plastic products and metal die castings. With the development of industrial technology, higher requirements are placed on the functionality and efficiency of molds. In traditional mold design, the core pulling mechanism is mainly used to solve the demoulding problem of the concave and convex shapes on the side of the product during the molding process. However, in the manufacturing process of some complex-shaped products, core pulling in a single direction often cannot meet the needs, and core pulling operations need to be performed from two different directions to ensure the integrity and quality of the product.

[0003] The common one-way core-pulling molds on the market have obvious limitations when processing complex geometric products that require two-way core-pulling. For example, when the inner side of the product contains an insert, the inner insert needs to be supported and positioned in the product height direction, and the traditional one-way core-pulling method alone may not be able to effectively achieve demolding, resulting in low production efficiency, and may cause product misalignment or damage during the demolding process, which has a negative impact on product quality. Summary of the invention

[0004] The purpose of the utility model: In order to overcome the defects of the prior art one-way core-pulling mold, the utility model provides a mold with two-way core-pulling, which is suitable for the manufacture of products with complex internal structures and special core-pulling requirements.

[0005] The technical scheme of the utility model includes a fixed template, a movable template, an inclined guide column, a core and a driving member, wherein the inclined guide column is fixed on the fixed template, the core is arranged on the movable template, and also includes an inclined side slider, a guide column core-pulling slider, a vertical guide block and a side core-pulling block for positioning product inserts, the inclined side slider is fixedly connected with the guide column core-pulling slider, the inclined guide column is inserted into the guide column core-pulling slider to drive the guide column core-pulling slider and the inclined side slider to slide horizontally and laterally during demoulding; the side core-pulling block is movably arranged on both sides of the core, and the output of the driving member The shaft is linked with the vertical guide block, and the vertical guide block is limitedly matched with the side core pulling block to guide the side core pulling block to slide along the vertical demoulding direction of the vertical guide block; the inclined side slider is in contact with the side core pulling block and the contact surface between the two forms an inclined surface inclined to the vertical demoulding direction, and the side core pulling block is driven to slide along the vertical demoulding direction through the horizontal lateral sliding action of the inclined side slider during demoulding through the extrusion match of the inclined surface, and the output shaft of the driving member operates after the side core pulling block moves vertically to drive the side core pulling block to slide horizontally laterally.

[0006] By adopting the above technical solution, through structures such as the inclined side slider and the guide column core pulling slider, not only can the core pulling action in the horizontal direction be achieved during the demolding process, but also the core pulling in the vertical direction can be achieved through the cooperation of the inclined surface between the side core pulling block and the inclined side slider. This two-way core pulling method greatly improves the demolding efficiency and reduces the risk of jamming or damage that may occur in traditional one-way core pulling. For those products with complex internal structures and inserts, the action sequence and path of the side core pulling block are precisely controlled to ensure the stability and correct position of the insert during the entire demolding process, thereby improving the quality of the final product.

[0007] In a possible design, a dovetail platform and a dovetail groove that cooperate with each other are arranged on the inclined surface, the dovetail platform is located on the side slider of the inclined surface, and the dovetail groove is arranged on the side core pulling block.

[0008] The above design is adopted to prevent the side core pulling block from shifting, so that the inclined side slider and the side core pulling block can only move along the predetermined trajectory, thereby improving the guiding accuracy of the side core pulling block when moving along the vertical demolding direction, and ensuring a smooth transition between the inclined side slider and the side core pulling block during the demolding process.

[0009] In a possible design, a limit block is fixedly mounted on the vertical guide block, a vertical groove arranged along the vertical demoulding direction is opened on the side core pulling block, and the limit block is slidably matched with the vertical groove.

[0010] The above design ensures the linear movement of the side core pulling block in the vertical demoulding direction, avoids the side core pulling block from deflecting or rotating during the demoulding process, and ensures the accuracy of the core pulling action.

[0011] In a possible design, the driving member is an oil cylinder, and an oil cylinder core-pulling slider is installed on the output shaft of the oil cylinder. The oil cylinder core-pulling slider is also fixedly connected to the vertical guide block.

[0012] With the above design, the oil cylinder as a driving source can provide stable and controllable power, ensuring that the oil cylinder core-pulling slider can drive the vertical guide block to move horizontally.

[0013] In a possible design, a plurality of positioning protrusions are provided on the side core pulling block, and the positioning protrusions are adapted to the product to form process holes on the product.

[0014] By adopting the above design, the positioning protrusion on the side core pulling block is precisely matched with the product surface, so as to ensure the position accuracy of the molded injection product and the insert, and maintain the exhaust and stress release of the injection molded part, which is beneficial to improve the quality of the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the product processed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model mold before injection molding (the fixed template and the movable template are hidden, the same below);

[0017] Figure 3 It is a structural schematic diagram of the side core-pulling block of the utility model after completing vertical movement;

[0018] Figure 4 This is a schematic diagram of the structure of the drive member of the utility model after it is started;

[0019] Figure 5 It is a structural schematic diagram of the utility model product, the side core-pulling block and the inclined side sliding block;

[0020] Figure 6 It is an exploded view of a specific embodiment of the utility model;

[0021] Figure 7 It is a cross-sectional view of a specific embodiment of the utility model;

[0022] Among them, 1. product; 11. insert; 12. process hole; 2. side core pulling block; 21. dovetail groove; 22. vertical groove; 23. positioning protrusion; 3. inclined guide column; 4. core; 5. driving part; 51. cylinder core pulling slider; 6. inclined side slider; 61. inclined surface; 62. dovetail platform; 7. guide column core pulling slider; 8. vertical guide block; 81. limit block. DETAILED DESCRIPTION

[0023] like Figure 1-7The mold with bidirectional core pulling is shown, which is used for processing a coil skeleton product 1, and the product 1 has an insert 11. The mold includes a fixed mold plate, a movable mold plate, an inclined guide column 3, a core 4, a driving member 5, an inclined side slider 6, a guide column core pulling slider 7, a vertical guide block 8, and a side core pulling block 2 for positioning the insert 11 of the product 1. The cavity of the side core pulling block 2 fits the shape of the insert 11, so that it has a concave cavity or a convex ridge for positioning the insert 11. The inclined guide column 3 is fixed on the fixed mold plate, the core 4, the driving member 5, the inclined side slider 6, the guide column core pulling slider 7, the vertical guide block 8, and the side core pulling block 2 are all arranged on the movable mold plate, the inclined side slider 6 is fixedly connected to the guide column core pulling slider 7, and the inclined guide column 3 is inserted into the guide column core pulling slider 7, so when demolding, the movement of the inclined guide column 3 will drive the guide column core pulling slider 7 and the inclined side slider 6 to slide horizontally sideways. The two side core-pulling blocks 2 are movably arranged on two opposite sides of the core 4. The output shaft of the driving member 5 is linked to the vertical guide block 8. The vertical guide block 8 and the side core-pulling block 2 are limited to limit the side core-pulling block 2 to slide along the vertical demolding direction of the vertical guide block 8. The inclined side slider 6 is in contact with the side core-pulling block 2 and the contact surface between the two forms an inclined surface 61 inclined to the vertical demolding direction. The inclined surface 61 is also inclined to the horizontal direction. Through the extrusion staggered cooperation of the inclined surface 61, the horizontal lateral sliding action of the inclined side slider 6 can be used to drive the side core-pulling block 2 to slide along the vertical demolding direction during demolding. The output shaft of the driving member 5 operates after the side core-pulling block 2 moves vertically to drive the side core-pulling block 2 to slide horizontally. The specific demolding process is: when demolding starts, the movable template starts to move away from the fixed template, and the inclined guide column 3 pushes the guide column core-pulling slider 7 and the inclined side slider 6 to slide horizontally, and the inclined guide column 3 also gradually separates from the guide column core-pulling slider 7. At the same time, the inclined side slider 6 pushes the side core pulling block 2 to move upward along the vertical groove 22 of the vertical guide block 8 through the contact between its inclined surface 61 and the side core pulling block 2, thereby realizing vertical demoulding. Once the side core pulling block 2 completes the vertical movement, the driving member 5 is started, and its output shaft drives the oil cylinder core pulling slider 51 and the vertical guide block 8 to move in the horizontal direction, thereby driving the side core pulling block 2 to complete the core pulling action in the horizontal direction. Subsequently, the ejector pin and other devices in the mold eject the formed product 1, and finally the product 1 is demoulded. Therefore, during the demoulding process, not only the core pulling action in the horizontal direction is realized, but also the core pulling in the vertical direction is realized through the cooperation of the inclined surface 61 between the side core pulling block 2 and the inclined side slider 6, thus realizing the action of two-way core pulling.

[0024] The inclined surface 61 is provided with a dovetail platform 62 and a dovetail groove 21 that cooperate with each other. The dovetail platform 62 is located on the inclined side slider 6, and the dovetail groove 21 is provided on the side core pulling block 2. The dovetail platform 62 is placed in the dovetail groove 21 so that the two can slide staggered with each other according to a predetermined path, thereby driving the side core pulling block 2 to move in the vertical demoulding direction.

[0025] A convex stopper 81 is fixedly mounted on the vertical guide block 8, and a vertical groove 22 arranged along the vertical demoulding direction is provided on the side core-pulling block 2. The vertical guide block 8 is located on two opposite sides of the side core-pulling block 2, and two stopper blocks 81 protrude toward the side core-pulling block 2, respectively, so that a part of the stopper block 81 is placed in the corresponding vertical groove 22, so that the stopper block 81 and the vertical groove 22 can slide and cooperate. When the side core-pulling block 2 is relatively displaced with the inclined side slider 6, the side core-pulling block 2 is guided by the stopper block 81 to make a linear motion along the vertical demoulding direction.

[0026] The driving member 5 is a cylinder, and a cylinder core-pulling slider 51 is installed on the output shaft of the cylinder, and the cylinder core-pulling slider 51 is also fixedly connected to the vertical guide block 8. When the cylinder is running, the vertical guide block 8 can be driven to slide horizontally through the connection of the cylinder core-pulling slider 51.

[0027] A plurality of positioning protrusions 23 are provided on the side core pulling block 2, and the positioning protrusions 23 are adapted to the product 1 to form a process hole 12 on the product 1. The process hole 12 can ensure the position accuracy of the molded injection molded product 1 and the insert 11, and maintain the exhaust and stress release of the injection molded part, which is conducive to improving the quality of the molded product 1.

Claims

1. A mold with bidirectional core pulling, comprising a fixed mold plate, a movable mold plate, an inclined guide pin, a core and a driving member, wherein the inclined guide pin is fixed on the fixed mold plate, and the core is arranged on the movable mold plate, characterized in that: The cam is provided with a plurality of guide wheels, each of which is provided with a plurality of guide wheels, and the guide wheels are ...

2. The mold with bidirectional core pulling according to claim 1, characterized in that: The inclined surface is provided with a dovetail platform and a dovetail groove which cooperate with each other, the dovetail platform is located on the sliding block on the inclined surface side, and the dovetail groove is provided on the side core pulling block.

3. The mold with bidirectional core pulling according to claim 1 or 2, characterized in that: A limit block is fixedly mounted on the vertical guide block, a vertical groove arranged along the vertical demoulding direction is opened on the side core-pulling block, and the limit block is slidably matched with the vertical groove.

4. The mold with bidirectional core pulling according to claim 1 or 2, characterized in that: The driving member is an oil cylinder, and an oil cylinder core-pulling slider is installed on the output shaft of the oil cylinder. The oil cylinder core-pulling slider is also fixedly connected to the vertical guide block.

5. The mold with bidirectional core pulling according to claim 1 or 2, characterized in that: The side core-pulling block is provided with a plurality of positioning protrusions, and the positioning protrusions are adapted to the product to form process holes on the product.

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