A step-by-step driven anti-jamming pressure mold slider core-pulling mold opening structure

Abstract

This utility model discloses a step-by-step driven anti-jamming mold opening structure for a slider core-pulling mechanism, including slider A, slider B, and a core-pulling assembly. The core-pulling assembly includes a hollow shell with a push rod at one end and a pull rod at the other. The push rod extends into the interior of slider A, and the pull rod extends into the interior of slider B. Slider A drives the core-pulling assembly to move to the mold opening position, and slider B then drives the core-pulling assembly to complete the mold opening operation. This utility model avoids motion conflicts caused by a single drive by pre-positioning slider A and completing mold opening with slider B. The precise coordination of the push rod, pull rod, and shell ensures controllable movement trajectories and balanced force distribution for each component, completely solving the mold opening jamming problem of traditional structures and improving mold opening stability.

Description

Technical Field

[0001] This utility model relates to the field of mold application technology, and in particular to a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold. Background Technology

[0002] In the field of injection molding, the slider core-pulling mold opening structure is a key component for demolding complex-shaped injection molded parts. Traditional slider core-pulling structures often use a single drive method, which can easily lead to jamming or even seizing between the core-pulling component and the slider during the mold opening process due to poor synchronization of component movement and uneven force. This not only affects the molding quality and demolding efficiency of the injection molded parts, but also accelerates the wear of mold components and shortens the mold's service life.

[0003] Meanwhile, the connection between the slider and core-pulling assembly in traditional structures is relatively fixed, making disassembly and maintenance difficult. When a component malfunctions, the entire assembly often needs to be disassembled and replaced, increasing production and maintenance costs and downtime. Furthermore, some core-pulling structures struggle to achieve precise molten material flow during injection molding, leading to uneven material distribution. This further affects the structural strength and appearance accuracy of the molded parts, failing to meet the demands of high-precision, high-efficiency injection molding production. Therefore, this invention proposes a step-by-step driven, anti-jamming slider core-pulling mold opening structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a slider core-pulling mold opening structure for a step-by-step driven anti-jamming mold, which solves the technical problems of easy jamming, inconvenient maintenance and poor injection molding quality of the existing slider core-pulling mold opening structure.

[0005] To solve the above technical problems, the present invention adopts a technical solution as follows: a slider core-pulling mold opening structure for step-by-step driving anti-jamming pressure mold is provided, including slider A, slider B and core-pulling assembly, wherein the core-pulling assembly includes a shell, the shell is hollow, a push rod is provided at one end of the shell and a pull rod is provided at the other end; The push rod extends into the interior of slider A, and the pull rod extends into the interior of slider B. Slider A drives the core-pulling assembly to move to the mold opening position, and slider B drives the core-pulling assembly to realize the mold opening operation.

[0006] The present invention is further configured such that: a fixing groove is provided inside the slider A, and a stop groove is provided near one end of the fixing groove, and the push rod is inserted into the fixing groove.

[0007] With the above technical solution, after the push rod is inserted into the fixing groove, it can be accurately positioned and fixed with the help of the stop groove. This structure can limit the radial and axial movement of the push rod in the slider A, ensuring that when the slider A drives the core pulling assembly to move, the push rod and the slider A maintain synchronous displacement, avoiding the core pulling assembly from shifting due to loose connection, and providing a stable initial motion foundation for subsequent step-by-step driving.

[0008] The present invention is further configured such that: one end of the push rod is fixedly connected to a mating end, the other end of the push rod is provided with a limiting end, and the push rod passes through the slider A through the fixing groove and is connected and fixed at the stop groove, and the limiting end is inserted into the inside of the shell.

[0009] Through the above technical solution, the mating end of one end of the push rod can enhance its adaptability with external related components, ensuring the continuity of power transmission; the limiting end of the other end is inserted into the shell, which can not only achieve a flexible connection between the push rod and the shell, but also limit the insertion depth of the push rod in the shell through the size design of the limiting end. At the same time, the way in which the push rod passes through the slider A and is fixed at the stop groove further strengthens the connection stability of the push rod, slider A and the core-pulling assembly, preventing the components from detaching or jamming during movement.

[0010] The present invention is further configured such that: one end of the pull rod is fixedly connected to an injection end, and a plurality of corresponding holes are provided on one side of the injection end; the pull rod is inserted into the interior of the shell through the injection end, and the injection end is pressed against the limiting end of the push rod; at the same time, the corresponding holes are adapted to and correspond to the injection grooves opened on the side wall of the shell.

[0011] Through the above technical solution, the pull rod is inserted into the shell through the injection end, and the injection end abuts against the limiting end of the push rod, forming a tight force transmission path inside the core-pulling assembly. This ensures that when the slider B drives the core-pulling assembly, the pull rod can respond quickly and transmit driving force. Furthermore, the corresponding hole at the injection end matches the injection groove on the side wall of the shell, allowing for precise flow of molten material into the mold cavity during the injection stage, ensuring the quality of the molded part. During the mold opening stage, this mating structure also prevents the pull rod and shell from jamming due to misalignment, improving the smoothness of mold opening.

[0012] The present invention is further configured such that the interior of the pull rod is hollow, and its end face away from the injection molding end is tapered.

[0013] Through the above technical solution, the hollow design inside the pull rod can reduce the overall weight of the component, reduce the inertial load during mold movement, reduce drive energy consumption, and facilitate internal wiring or material feeding. Its tapered end face design away from the injection end can reduce the contact area between the pull rod and the injection part during the mold opening and core pulling process, reduce core pulling resistance, and avoid deformation of the injection part or jamming of the pull rod due to excessive core pulling force. It is especially suitable for core pulling operations of injection parts with complex shapes.

[0014] The present invention is further configured such that: the slider B includes a block, the block is bolted to a cover block, and the block and the cover block are provided with positioning grooves that are adapted to the shell.

[0015] Through the above technical solution, slider B is composed of a mold block and a cover block connected by bolts to form a split structure, which facilitates mold disassembly, maintenance, and component replacement. When a component wears out, it is not necessary to replace slider B as a whole, reducing maintenance costs. The positioning grooves inside the mold block and cover block are adapted to the shell, which can accurately position and clamp the shell, ensuring that the shell maintains a stable posture when slider B drives the core-pulling assembly, avoiding mold opening jamming problems caused by shell misalignment.

[0016] The present invention is further configured such that: the cover block is provided with a positioning hole A near the side wall, and the positioning hole A is correspondingly provided with a positioning hole B on the outer wall of the shell.

[0017] With the above technical solution, the positioning hole A of the cover block and the positioning hole B of the core-pulling assembly are correspondingly set, and the relative position of the core-pulling assembly and the slider B can be further fixed by inserting positioning pins and other components. This structure can effectively prevent the core-pulling assembly from rotating or moving within the slider B during the mold opening process, ensuring the precise movement trajectory of the core-pulling assembly and fundamentally avoiding jamming failures caused by component misalignment.

[0018] The beneficial effects of this utility model are as follows: This utility model proposes a step-by-step driven anti-jamming mold opening structure with a slider core-pulling mechanism. The mold opening is completed by slider A pre-positioning and slider B, avoiding motion conflicts caused by a single drive. With the precise cooperation of the push rod, pull rod and shell, the movement trajectory of each component is controllable and the force is balanced, which completely solves the problem of mold opening jamming in traditional structures and improves the stability of mold opening. Attached Figure Description

[0019] Figure 1 This is the first structural diagram of a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold according to this utility model; Figure 2 This is a second structural diagram of a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold according to this utility model; Figure 3 This is a structural diagram of slider A in a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold according to this utility model; Figure 4 This is a structural diagram of slider B in a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold according to this utility model; Figure 5 This is an exploded view of the core-pulling component in the slider core-pulling mold opening structure of the step-driven anti-jamming pressure mold of this utility model; Figure 6This is a cross-sectional view of the core-pulling component in the slider core-pulling mold opening structure of the step-driven anti-jamming pressure mold of this utility model.

[0020] Reference numerals: 1. Slider A; 11. Fixing groove; 12. Stop groove; 2. Slider B; 21. Molding block; 211. Positioning groove; 22. Cover block; 221. Positioning hole A; 3. Core-pulling assembly; 31. Molding block; 311. Injection groove; 312. Positioning hole B; 32. Push rod; 321. Mating end; 322. Limiting end; 33. Pull rod; 331. Injection end; 332. Corresponding hole. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] like Figures 1-6 As shown, a slider core-pulling mold opening structure for a step-by-step driven anti-jamming pressure mold includes slider A1, slider B2 and core-pulling assembly 3. The core-pulling assembly 3 includes a shell 31, which is hollow. A push rod 32 is provided at one end of the shell, and a pull rod 33 is provided at the other end. Push rod 32 extends into the interior of slider A1, and pull rod 33 extends into the interior of slider B2. Slider A1 drives the core-pulling assembly 3 to move to the mold opening position, and slider B2 drives the core-pulling assembly 3 to realize the mold opening operation.

[0023] like Figure 1 and Figure 5 As shown, a fixing groove 11 is provided inside the slider A1, and a stop groove 12 is provided near one end of the fixing groove 11. The push rod 32 is inserted into the fixing groove 11. After the push rod 32 is inserted into the fixing groove 11, it can be accurately positioned and fixed with the help of the stop groove 12. This structure can limit the radial and axial movement of the push rod 32 in the slider A1, ensuring that when the slider A1 drives the core-pulling assembly 3 to move, the push rod 32 and the slider A1 maintain synchronous displacement, avoiding the core-pulling assembly 3 from shifting due to loose connection, and providing a stable initial motion basis for subsequent step-by-step driving. One end of the push rod 32 is fixedly connected to a mating end 321, and the other end of the push rod 32 is provided with a limiting end 322. The push rod 32 passes through the slider A1 through the fixing groove 11 and is connected and fixed at the stop groove 12. The limiting end 322 is inserted into the inside of the drawer 31. The mating end 321 at one end of the push rod 32 can enhance its compatibility with external related components and ensure the continuity of power transmission. The limiting end 322 at the other end is inserted into the inside of the drawer 31, which can realize the flexible connection between the push rod 32 and the drawer 31, and can also limit the insertion depth of the push rod 32 in the drawer 31 through the size design of the limiting end 322. At the same time, the way in which the push rod 32 passes through the slider A1 and is fixed at the stop groove 12 further strengthens the connection stability of the push rod 32, the slider A1 and the core-pulling assembly 3, and prevents the components from detaching or jamming during the movement.

[0024] like Figure 5 As shown, one end of the pull rod 33 is fixedly connected to an injection end 331, and a plurality of corresponding holes 332 are provided on one side of the injection end 331. The pull rod 33 is inserted into the interior of the shell 31 through the injection end 331, and the injection end 331 is pressed against the limiting end 322 of the push rod 32. At the same time, the corresponding holes 332 are matched and correspond to the injection groove 311 opened on the side wall of the shell 31. The pull rod 33 is inserted into the interior of the shell 31 through the injection end 331, and the injection end 331 is pressed against the limiting end 322 of the push rod 32. A tight force transmission path can be formed inside the core-pulling assembly 3, ensuring that when the slider B2 drives the core-pulling assembly 3, the pull rod 33 can respond quickly and transmit driving force. In addition, the corresponding hole 332 of the injection end 331 is adapted to correspond with the injection groove 311 on the side wall of the shell 31, so that the molten material can flow into the mold cavity accurately during the injection stage, ensuring the molding quality of the injection molded part; during the mold opening stage, this mating structure can also prevent the pull rod 33 and the shell 31 from jamming due to misalignment, improving the smoothness of mold opening.

[0025] like Figure 5 and Figure 6 As shown, the inside of the pull rod 33 is hollow, and its end face away from the injection end 331 is tapered. The hollow design of the pull rod 33 can reduce the overall weight of the component, reduce the inertial load during mold movement, reduce drive energy consumption, and facilitate internal wiring or material flow, such as cooling water channels. Its tapered end face design away from the injection end 331 can reduce the contact area between the pull rod 33 and the injection part during the mold opening and core pulling process, reduce core pulling resistance, and avoid deformation of the injection part or jamming of the pull rod 33 due to excessive core pulling force. It is especially suitable for core pulling operations of injection parts with complex shapes.

[0026] like Figure 4 and Figure 5As shown, slider B2 includes a mold block 21, which is bolted to a cover block 22. Both the mold block 21 and the cover block 22 have internal positioning grooves 211 that fit the shell 31. Slider B2, consisting of the mold block 21 and the cover block 22 connected by bolts, forms a split structure, facilitating mold disassembly, maintenance, and component replacement. When a component wears out, slider B2 does not need to be replaced entirely, reducing maintenance costs. The positioning grooves 211 inside the mold block 21 and the cover block 22 fit the shell 31, allowing for precise positioning and clamping of the shell 31. This ensures that the shell 31 maintains a stable posture when slider B2 moves the core-pulling assembly 3, preventing mold jamming caused by shell 31 offset. The cover block 22 has a positioning hole A221 near its side wall, which corresponds to the positioning hole B312 on the outer wall of the shell 31. The positioning holes A221 and B312 of the cover block 22 and shell 31 can be further fixed by inserting positioning pins or other components to secure the relative position of the shell 31 and the slider B2. This structure effectively prevents the shell 31 from rotating or shifting within the slider B2 during mold opening, ensuring precise movement of the core-pulling assembly 3 and fundamentally avoiding jamming caused by component misalignment.

[0027] In use, the slider core-pulling mold opening structure first undergoes initial assembly and positioning. The push rod 32 passes through the fixing groove 11 of the slider A1 and is fixed at the stop groove 12, allowing its limiting end 322 to extend into the core-pulling assembly 3's shell 31. The pull rod 33 is inserted through the injection end 331 into the other end of the shell 31 and abuts against the limiting end 322, with the corresponding hole 332 aligned with the injection groove 311 of the shell 31. Then, the core-pulling assembly 3 is placed into the positioning groove 211 formed by the block 21 and cover block 22 of the slider B2, and the block 21 and cover block are connected by bolts. 22, and use positioning holes A221 and B312 to insert positioning pins for fixation; during injection molding, the molten material flows into the cavity through the injection groove 311 and the corresponding hole 332. In the mold opening stage, the slider A1 drives the push rod 32, which in turn pushes the core pulling assembly 3 to the mold opening preparation position. Then, the slider B2 drives the shell 31 and the pull rod 33 to move. The tapered end face of the pull rod 33 is pulled out smoothly due to the small resistance, and finally the injection molded part is smoothly demolded. The whole process effectively avoids the problem of mold opening jamming through step-by-step driving, precise cooperation of each component and special structural design of the pull rod 33.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A step-by-step driving anti-stuck die mold slide core pulling mold opening structure, comprising a slide block A (1), a slide block B (2) and a core pulling assembly (3), characterized in that: The core-pulling assembly (3) includes a core-pulling shell (31), which is hollow and has a push rod (32) at one end and a pull rod (33) at the other end. The push rod (32) extends into the interior of the slider A (1), and the pull rod (33) extends into the interior of the slider B (2). The core-pulling assembly (3) is driven to move to the mold opening position by the slider A (1), and the core-pulling assembly (3) is driven by the slider B (2) to realize the mold opening operation.

2. The slide core pulling mold opening structure of the step-by-step driving anti-stuck pressing mold according to claim 1, characterized in that: The slider A (1) has a fixed groove (11) inside and a stop groove (12) is provided near the fixed groove (11). The push rod (32) is inserted into the fixed groove (11).

3. The slide core pulling mold opening structure of step-by-step driving anti-stuck pressing mold according to claim 2, characterized in that: One end of the push rod (32) is fixedly connected to a mating end (321), and the other end of the push rod (32) is provided with a limiting end (322). The push rod (32) passes through the slider A (1) through the fixing groove (11) and is fixedly connected at the stop groove (12). The limiting end (322) is inserted into the inside of the shell (31).

4. The slide core pulling mold opening structure of the step-by-step driving anti-stuck pressing mold according to claim 3, characterized in that: One end of the pull rod (33) is fixedly connected to an injection end (331), and a plurality of corresponding holes (332) are provided on one side of the injection end (331). The pull rod (33) is inserted into the interior of the shell (31) through the injection end (331), and the injection end (331) is pressed against the limiting end (322) of the push rod (32). At the same time, the corresponding holes (332) are matched and correspond to the injection groove (311) opened on the side wall of the shell (31).

5. The slide core pulling mold structure of step-by-step driving anti-stuck pressing mold according to claim 4, characterized in that: The inside of the pull rod (33) is hollow, and its end face away from the injection end (331) is tapered.

6. The step drive anti-jamming die sliding block core-pulling structure according to claim 1, characterized in that: The slider B (2) includes a block (21), which is bolted to a cover block (22), and the block (21) and the cover block (22) have positioning grooves (211) that are compatible with the shell (31).

7. The slide core pulling mold structure of step-by-step driving anti-stuck pressing mold according to claim 6, characterized in that: The cover block (22) has a positioning hole A (221) near the side wall, and the positioning hole A (221) is correspondingly set with the positioning hole B (312) on the outer wall of the shell (31).

Images