Sliding block demolding structure of injection mold
The barbed diagonal rod and slider demoulding component structure solves the problem of the cylinder structure requiring a specific mounting seat, simplifies the processing difficulty of the injection mold, and achieves convenient and stable movement of the slider.
Patent Information
- Application Number
- CN202422789072.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In existing injection molds, the cylinder structure requires a specific cylinder mounting seat that is installed perpendicular to the slide guide, which makes processing difficult and increases production difficulty.
The barbed inclined rod and slider demoulding component structure is adopted. The barbed inclined rod cooperates with the linkage slider and uses a controllable cylinder to provide external thrust, omitting the processing process of a specific mounting seat and simplifying the slider movement structure.
The production difficulty of the injection mold is reduced, the processing process of the slider moving structure is simplified, and the convenience and stability of processing are improved.
Smart Images
Figure CN223478255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to a slider demolding structure for injection molds. Background Technology
[0002] Injection molds are tools used to manufacture plastic products, also known as plastic molds. They typically consist of a mold base, mold core, guide pillars, guide sleeves, ejector pins, nozzles, and a cooling system. Plastic is melted and injected into the mold under high temperature and pressure. After the plastic cools, the desired product is obtained. The mold core includes structures such as a moving core, a fixed core, and a sprue. When the injection molded product has barbs, a slider structure needs to be added to the core to cooperate with the mold core, so that the product with barbs can be formed in one step, and the product can be directly demolded after the slider is removed after the product is formed.
[0003] Currently, the main structure for controlling the movement of the slider is a cylinder. The characteristics of cylinders require that their push rods be aligned with the direction of slider movement. Therefore, a cylinder mounting base that is perpendicular to the slider guide is required. However, this inclined mounting base is not easy to manufacture, which increases the difficulty of injection mold production.
[0004] Therefore, a slider demolding structure for injection molds is proposed to address the above problems. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and address the issue that the main structure for controlling the movement of the slider is a cylinder structure, the characteristics of cylinders require that their ejector rods coincide with the direction of slider movement. Therefore, a cylinder mounting base perpendicular to the slider guide is needed. However, this inclined mounting base is difficult to process, increasing the production difficulty of injection molds. To address this problem, a slider demolding structure for injection molds is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The injection mold slider demolding structure of this utility model includes a fixed core and a moving core. The core openings of the fixed core and the moving core are corresponding. A pouring gate is opened at the center of the side wall of the fixed core away from the moving core. A pouring channel is installed on the outside of the fixed core and is connected to the pouring gate. A slider demolding assembly is installed on the outside of the moving core. The slider demolding assembly is installed on the side wall away from the fixed core. A barbed slant is provided on the side wall of the moving core away from the fixed core. One end of the barbed slant penetrates into the cavity of the fixed core and the moving core. The other end of the barbed slant is fixedly connected to a linkage slider. The linkage slider is linked with the slider demolding assembly.
[0007] Preferably, the linkage slider has a linkage groove on the side wall away from the moving core, and the slider demolding assembly includes a vertical track, the side wall protrusion of the vertical track slidingly engaging with the linkage groove.
[0008] Preferably, a top plate is installed at the top center of the moving core, the side wall of the top plate is parallel to the side wall of the moving core, and a limiting groove is formed at the bottom center of the moving core, the limiting groove and the guide center of the vertical track are coplanar.
[0009] Preferably, one end of the vertical track is vertically fixed to a limiting track, and the limiting track slides into a limiting groove.
[0010] Preferably, the other end of the vertical track extends above the top surface of the moving core, and a linkage circular plate is fixedly connected to one end of the vertical track.
[0011] Preferably, a controllable cylinder is installed on the top plate at the center of the side wall away from the shaping core.
[0012] Preferably, the output end of the controllable cylinder is fixedly connected to the linkage circular plate.
[0013] The beneficial effects of this utility model are:
[0014] In this invention, one end of a barbed slant rod is inserted into the moving core and cooperates with the fixed core to form a barbed cavity. After the product is formed in the cavity, the barbed slant rod is removed before the product can be demolded. The slider demolding assembly serves as an auxiliary structure for removing the barbed slant rod from the moving core. It is engaged with the linkage groove on the linkage slider via a vertical track. This allows the vertical track to be pushed outward while providing an outward pulling force to the barbed slant rod. The controllable cylinder provides an outward pushing force to the vertical track. It is installed in conjunction with the top plate, eliminating the need to manufacture a special inclined body for installation, thereby reducing the production difficulty of the device. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a perspective view of one side of this utility model;
[0017] Figure 2 This is a perspective view of the other side of this utility model;
[0018] Figure 3 This is a perspective view of the shaping core in this utility model;
[0019] Figure 4 This is a perspective view of a partial cross-section of the moving core in this utility model;
[0020] Figure 5 This is a perspective view of the vertical track and the barbed slant bar in this utility model;
[0021] Legend:
[0022] 1. Fixed core; 2. Moving core; 11. Pour gate; 12. Pour channel; 3. Sliding block demolding assembly; 4. Barbed slant bar; 41. Linked slider; 42. Linked groove; 31. Vertical track; 21. Top plate; 22. Limiting groove; 32. Limiting track; 33. Linked circular plate; 5. Controllable cylinder. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] Please see Figure 1 - Figure 5 This utility model provides a slider demolding structure for an injection mold, including a fixed core 1 and a moving core 2. The core openings of the fixed core 1 and the moving core 2 correspond to each other. A pouring gate 11 is provided at the center of the side wall of the fixed core 1 away from the moving core 2. A pouring channel 12 is installed on the outside of the fixed core 1, and the pouring channel 12 connects with the pouring gate 11. A slider demolding assembly 3 is installed on the outside of the moving core 2. The slider demolding assembly 3 is installed on the side wall away from the fixed core 1. A barbed slant 4 is provided on the side wall of the moving core 2 away from the fixed core 1, and one end of the barbed slant 4 passes through the fixed core. Inside the cavity of core 1 and moving core 2, the other end of the barbed slant rod 4 is fixedly connected to the linkage slider 41. The linkage slider 41 is linked with the slider demolding assembly 3. The fixed core 1 and moving core 2 cooperate to form the main body of the cavity. Before product injection molding, the barbed slant rod 4 is inserted into the cavity to shape the product. Then, the liquid raw material enters the cavity through the pouring port 11 and pouring channel 12 and the product is formed in the cavity. After the raw material is shaped, before the product is demolded, it is moved out of the moving core 2 by the cooperation of the slider demolding assembly 3 with the linkage slider 41 at one end of the barbed slant rod 4. Then the demolding action is performed.
[0026] like Figure 1 and Figure 5As shown, the linkage slider 41 has a linkage groove 42 on the side wall away from the moving core 2. The slider demolding assembly 3 includes a vertical track 31. The side wall protrusion of the vertical track 31 slides and engages with the linkage groove 42. The linkage slider 41 is linked with the vertical track 31 through the linkage groove 42. This allows the barbed rod 4 to have an outward force during the process of pushing the vertical track 31 outward. The sliding engagement between the vertical track 31 and the linkage groove 42 will not cause any movement resistance during the process of the barbed rod 4 moving out of the moving core 2.
[0027] like Figure 2 , Figure 4 and Figure 5 As shown, a top plate 21 is installed at the top center of the moving core 2. The side wall of the top plate 21 is parallel to the side wall of the moving core 2. A limiting groove 22 is opened at the bottom center of the moving core 2. The limiting groove 22 and the guide center of the vertical track 31 are coplanar. The moving core 2 installs the controllable cylinder 5 through the top plate 21. The moving core 2 limits the position of the limiting track 32 through the opening of the limiting groove 22. The moving core 2 is linked with the slider demolding assembly 3 through the setting of the top plate 21 and the limiting groove 22 respectively. Since the slider demolding assembly 3 is the main structure that controls the barbed bar 4 to move out of the moving core 2, the moving core 2 and its linkage structure are simple to process, which reduces the overall processing difficulty of the device.
[0028] like Figure 2 and Figure 5 As shown, one end of the vertical track 31 is vertically fixed to the limiting track 32, and the limiting track 32 slides and engages with the limiting groove 22. The mutual engagement between the limiting track 32 and the limiting groove 22 at one end of the vertical track 31 increases the structural stability during its outward movement by restricting one end without affecting the outward movement of the vertical track 31.
[0029] like Figure 2 As shown, the other end of the vertical track 31 extends to the top surface of the moving core 2. One end of the vertical track 31 is fixedly connected to a linkage circular plate 33. A controllable cylinder 5 is installed at the center of the side wall of the top plate 21 away from the fixed core 1. The output end of the controllable cylinder 5 is fixedly connected to the linkage circular plate 33. The controllable cylinder 5 installed on the side wall of the top plate 21 is linked with the slider demolding assembly 3 through the docking of the output shaft and the linkage circular plate 33, providing an outward output force for the slider demolding assembly 3, and thus providing an output force for the barbed slant bar 4 to move out of the moving core 2.
[0030] Working principle: The fixed core 1 and the moving core 2 work together to form the main body of the mold cavity. Before product injection, the barbed rod 4 is inserted into the cavity to shape the product. Then, the liquid raw material enters the cavity through the pouring port 11 and the pouring channel 12, and the product is formed in the cavity. After the raw material is shaped, before the product is demolded, the sliding demolding assembly 3 and the linkage slider 41 at one end of the barbed rod 4 are used to move the product from the moving core 2. Then the demolding action is performed. The linkage slider 41 is linked to the vertical rail 31 through the linkage groove 42. This allows the barbed rod 4 to have an outward force during the process of pushing the vertical rail 31 outward. The sliding fit between the vertical rail 31 and the linkage groove 42 will not cause the barbed rod 4 to be driven by the moving core 2. The process of the core 2 moving out generates movement resistance. The movable core 2 is installed on the controllable cylinder 5 through the top plate 21. The movable core 2 limits the position of the limiting track 32 through the opening of the limiting groove 22. The movable core 2 is linked with the slider demolding assembly 3 through the setting of the top plate 21 and the limiting groove 22 respectively. Since the slider demolding assembly 3 is the main structure for controlling the movement of the barb slant bar 4 from the movable core 2, the movable core 2 and its linkage structure are simple to process. The controllable cylinder 5 installed on the side wall of the top plate 21 is linked with the slider demolding assembly 3 through the docking of the output shaft with the linkage circular plate 33, providing the slider demolding assembly 3 with the outward movement output force, and thus providing the output force for the barb slant bar 4 to move out from the movable core 2.
[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.
Claims
1. A slider demolding structure for an injection mold, characterized in that: The device includes a fixed core (1) and a moving core (2), with the core openings of the fixed core (1) and the moving core (2) corresponding to each other. The fixed core (1) has a pouring port (11) at the center of the side wall away from the moving core (2). A pouring channel (12) is installed on the outside of the fixed core (1), and the pouring channel (12) is connected to the pouring port (11). A slider demolding assembly (3) is installed on the outside of the moving core (2), and the slider demolding assembly (3) is installed on the side wall away from the fixed core (1). A barbed slant bar (4) is provided on the side wall away from the fixed core (1) of the moving core (2). One end of the barbed slant bar (4) penetrates into the cavity of the fixed core (1) and the moving core (2), and the other end of the barbed slant bar (4) is fixed to a linkage slider (41). The linkage slider (41) is linked with the slider demolding assembly (3).
2. The injection mold slider demolding structure according to claim 1, characterized in that: The linkage slider (41) has a linkage groove (42) on the side wall away from the moving core (2). The slider demolding assembly (3) includes a vertical track (31), and the side wall protrusion of the vertical track (31) slides and engages with the linkage groove (42).
3. The injection mold slider demolding structure according to claim 2, characterized in that: A top plate (21) is installed at the top center of the moving core (2). The side wall of the top plate (21) is parallel to the side wall of the moving core (2). A limiting groove (22) is opened at the bottom center of the moving core (2). The limiting groove (22) and the guide center of the vertical track (31) are coplanar.
4. The injection mold slider demolding structure according to claim 3, characterized in that: One end of the vertical track (31) is vertically fixed to a limiting track (32), and the limiting track (32) slides into contact with the limiting groove (22).
5. The injection mold slider demolding structure according to claim 4, characterized in that: The other end of the vertical track (31) extends above the top surface of the moving core (2), and a linkage circular plate (33) is fixed to one end of the vertical track (31).
6. The injection mold slider demolding structure according to claim 5, characterized in that: A controllable cylinder (5) is installed on the top plate (21) at the center of the side wall away from the shaping core (1).
7. The injection mold slider demolding structure according to claim 6, characterized in that: The output end of the controllable cylinder (5) is fixedly connected to the linkage circular plate (33).