Reversed injection molding part demolding mold
By designing the combination of mobile seats, oblique rods, row sliders and insert presses in the mold, the problem of interference with the inverted structure of the injection molded parts during demolding is solved, and the simple and efficient removal of the injection molded parts is achieved. The mold improves the operation ease and efficiency of the mold.
Patent Information
- Application Number
- CN202421117024.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-21
AI Technical Summary
It is difficult for existing molds to effectively avoid interference with the inverted structure of the injection molded parts during demolding, resulting in a complex demolding process and making it difficult to achieve simple and efficient demolding operations.
A molded component including a moving seat, a slant rod, a row slider and an insert block is designed. The moving mechanism drives the mutual cooperation of these components to realize up and down movement and horizontal sliding of the inverted groove of the injection molded part, simplifying the The mold release process.
It realizes simple and effective mold release of injection molded parts, avoids interference with the inverted structure, and improves the use efficiency and simplicity of operation of the mold.
Smart Images
Figure CN222309678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mold design, in particular to an undercut injection mold demoulding mold. Background Art
[0002] The mold can be used for forming injection molded parts. Some of the shapes of injection molded parts are quite special, such as mushroom-shaped ones with undercut structures at the bottom of the sides. When designing special molds for injection molded parts, in order to better avoid interference with undercuts during demoulding, the designs are often more complicated. Summary of the invention
[0003] In order to solve the deficiencies of the prior art, the utility model provides an undercut injection molded part demoulding mold which has a simple structure and is convenient for demoulding the injection molded part.
[0004] The technical solution adopted by the utility model is an undercut injection mold demoulding mold, including a product cavity adapted to the injection molded part and a molding component located on one side of the product cavity, the molding component including a moving seat, an inclined rod, a sliding block and an insert block, a horizontal slide groove is arranged in the middle of the moving seat, a first inclined groove adapted to the inclined rod is arranged on the upper part of the moving seat, the first inclined groove penetrates downwardly into the horizontal slide groove, an end of the sliding block close to the product cavity passes through the horizontal slide groove and slidably cooperates with the horizontal slide groove, and a The second inclined groove is adapted to the inclined rod, the inclined rod is arranged between the first inclined groove and the second inclined groove and the upper part of the inclined rod passes through the outside of the moving seat, the upper part of the sliding block close to the product cavity is provided with an inclined slide rail, the lower part of the insert block is provided with an inclined slide groove adapted to the inclined slide rail, one side of the insert block is slidably matched with the moving seat, the upper part of the insert block and the upper part of the moving seat are respectively provided with undercut grooves adapted to the undercuts of the injection molded part, and the undercut grooves are located at the contact surface between the insert block and the moving seat.
[0005] In the above scheme, the end of the slider and the end of the insert block form a part of the outer wall of the main part of the product cavity, and the undercut groove between the insert block and the moving seat constitutes the molding outer wall part of the product cavity that is undercut with the injection molded part; there is a moving mechanism inside the mold to drive the moving seat and the inclined rod to move back and forth, and the horizontal movement of the slider is driven by the inclined rod, and the inclined rod can move obliquely up and down on the moving seat. When the inclined rod moves, it can drive the slider to slide in the horizontal slide groove. When the slider moves, due to the cooperation of the inclined slide groove and the inclined slide rail, the insert block can move up and down. In this way, the slider and the insert block, which are the main structures for forming the product cavity in the molding component, can move separately, and the slider moves horizontally, and the insert block moves up and down. During the mold closing process, the slider moves horizontally toward the middle of the mold, and during the movement, it can drive the insert block to move upward, finally realizing the following Figure 3 The mold opening state of the molding component is transformed into Figure 4 The mold closing state of the molding component shown, that is, when the mold is closed, the upper and lower sides of the sliding block and the insert block are combined to form a structure for the side of the injection molded part, and the two undercut grooves between the insert block and the movable seat constitute the undercut structure for the injection molded part; and when demolding, the sliding block can be reset horizontally first, and can drive the insert block to move downward, thus making room for demolding of the undercut, and then the entire movable seat moves horizontally to realize the demolding of the entire injection molded part. In the utility model, the sliding block is mainly driven to move up and down at the same time, thereby simply realizing the demolding of the undercut of the injection molded part, with a simple structure and good effect.
[0006] Furthermore, the number of the molding components is two, and the two molding components are respectively arranged on both sides of the product cavity.
[0007] Furthermore, the movable seat includes a main body, a spring assembly and a mounting seat, the mounting seat is located on a side of the main body close to the product cavity, the spring assembly includes a horizontally arranged spring, the spring connects the main body and the mounting seat, and the insert block is slidably mounted on the mounting seat.
[0008] Furthermore, the horizontal slide groove runs through the main body and the mounting seat.
[0009] Furthermore, a pneumatic push-pull assembly is provided on a side of the movable seat away from the product cavity.
[0010] In the above solution, the pneumatic push-pull assembly can independently push and pull to make the movable seat slide horizontally as a whole.
[0011] Furthermore, the pneumatic push-pull assembly includes a push-pull block, one end of which is connected to the moving seat.
[0012] Furthermore, the first inclined groove of the movable seat is a waist-shaped groove, and the length of the waist-shaped groove is greater than the outer diameter of the inclined rod. A horizontal guide groove is provided on one side of the movable seat, and a guide column adapted to the horizontal guide groove is provided on the side of the sliding block.
[0013] In the above scheme, the inclined rod can drive the sliding block to move horizontally, but because the moving seat also needs to move horizontally, the first inclined groove is designed to be a waist-shaped groove with a certain length. In this way, even if the moving seat moves horizontally, the inclined rod can be relatively fixed with the mold in the whole mold, and the inclined rod will not move when the moving seat moves. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of a molding component in an embodiment.
[0015] Figure 2 yes Figure 1 Schematic diagram of partial structural explosion.
[0016] Figure 3 The present invention is a schematic structural diagram of a molding component in an embodiment when the mold is in a mold closing state.
[0017] Figure 4 The diagram is a schematic structural diagram of a molding component in an embodiment when it is in a mold demolding state.
[0018] Figure 5 It is a schematic diagram of the structure of the injection molded part and the undercut groove in an embodiment. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0020] like Figures 1 to 5As shown, the technical solution adopted by the utility model is an undercut injection mold demoulding mold, including a product cavity 2 adapted to the injection molded part 1 and a molding component located on one side of the product cavity 2, the molding component including a moving seat 3, an inclined rod 4, a sliding block 5 and an insert block 6, a horizontal slide groove 7 is arranged in the middle of the moving seat 3, a first inclined groove 8 adapted to the inclined rod 4 is arranged on the upper part of the moving seat 3, the first inclined groove 8 penetrates downwardly into the horizontal slide groove 7, one end of the sliding block 5 close to the product cavity 2 passes through the horizontal slide groove 7 and slidably cooperates with the horizontal slide groove 7, and a horizontal groove 8 is arranged in the middle of the sliding block 5 adapted to the inclined rod 4. The second inclined groove matched with the inclined rod 4, the inclined rod 4 is arranged between the first inclined groove 8 and the second inclined groove and the upper part of the inclined rod 4 passes through the outside of the moving seat 3, the upper part of the sliding block 5 close to the product cavity 2 is provided with an inclined slide rail 9, the lower part of the insert block 6 is provided with an inclined slide groove 10 matched with the inclined slide rail 9, one side of the insert block 6 and the moving seat 3 are slidably matched, the upper part of the insert block 6 and the upper part of the moving seat 3 are respectively provided with undercut grooves 12 matched with the undercuts 11 of the injection molded part 1, and the undercut grooves 12 are located at the contact surface between the insert block 6 and the moving seat 3.
[0021] In the above scheme, the end of the slider 5 and the end of the insert block 6 form a part of the outer wall of the main part of the product cavity 2, and the undercut groove 12 between the insert block 6 and the moving seat 3 constitutes the molded outer wall part of the product cavity 2 and the undercut 11 of the injection molded part 1; there is a motion mechanism inside the mold to drive the moving seat 3 and the inclined rod 4 to move back and forth, the horizontal movement of the slider 5 is driven by the inclined rod 4, and the inclined rod 4 can move obliquely upward and downward on the moving seat 3, and when the inclined rod 4 moves, it can drive the slider 5 in the horizontal slide groove 7 When the slider 5 moves, the inclined slide groove 10 cooperates with the inclined slide rail 9, so that the insert block 6 can move up and down. In this way, the slider 5 and the insert block 6 of the main structure used to form the product cavity 2 in the molding component can move separately, and the slider 5 moves horizontally, and the insert block 6 moves up and down. During the mold closing process, the slider 5 moves horizontally toward the middle of the mold, and during the movement, the insert block 6 can be driven to move up, and finally the following is achieved. Figure 3 The mold opening state of the molding component is transformed into Figure 4The mold closing state of the molding component shown, that is, when the mold is closed, the upper and lower sides of the sliding block 5 and the insert block 6 are combined to form a structure for the side of the injection molded part later, and the two undercut grooves 12 between the insert block 6 and the movable seat 3 constitute a structure for the undercut 11 of the injection molded part 1 later; and when demolding, the sliding block 5 can be reset horizontally first, and can drive the insert block 6 to move downward, thus making room for demolding of the undercut 11, and then the entire movable seat 3 moves horizontally to realize the demolding of the entire injection molded part 1. In the utility model, the sliding block 5 is mainly driven to drive the insert block 6 to move up and down at the same time, thereby simply realizing the demolding of the undercut 11 of the injection molded part 1, and the structure is simple and the effect is good.
[0022] In one embodiment, the number of the molding components is two, and the two molding components are respectively arranged on both sides of the product cavity 2.
[0023] In one embodiment, the movable seat 3 includes a main body 13, a spring assembly and a mounting seat 14, the mounting seat 14 is located on a side of the main body 13 close to the product cavity 2, the spring assembly includes a horizontally arranged spring 15, the spring 15 connects the main body 13 and the mounting seat 14, and the insert block 6 is slidably installed on the mounting seat 14.
[0024] In one embodiment, the horizontal slide groove 7 runs through the main body 13 and the mounting seat 14 .
[0025] In one embodiment, a pneumatic push-pull assembly is provided on a side of the movable seat 3 away from the product cavity 2 .
[0026] In the above solution, the pneumatic push-pull assembly can independently push and pull to make the movable seat 3 slide horizontally as a whole.
[0027] In one embodiment, the pneumatic push-pull assembly includes a push-pull block 16 , and one end of the push-pull block 16 is connected to the moving seat 3 .
[0028] In one embodiment, the first inclined groove 8 of the movable seat 3 is a waist-shaped groove, and the length of the waist-shaped groove is greater than the outer diameter of the inclined rod 4. A horizontal guide groove 17 is provided on one side of the movable seat 3, and a guide column 18 adapted to the horizontal guide groove 17 is provided on the side of the sliding block 5.
[0029] In the above scheme, the inclined rod 4 can drive the sliding block 5 to move horizontally, but because the moving seat 3 also needs to move horizontally, the first inclined groove 8 is designed to be a waist-shaped groove with a certain length. In this way, even if the moving seat 3 moves horizontally, the inclined rod 4 can be relatively fixed with the mold in the whole mold, and the inclined rod 4 will not move when the moving seat 3 moves.
Claims
1. A demoulding mold for undercut injection molded parts, characterized in that: The invention comprises a product cavity (2) adapted to an injection molded part (1) and a molding component located on one side of the product cavity (2), wherein the molding component comprises a moving seat (3), an inclined rod (4), a sliding block (5) and an insert pressing block (6), wherein a horizontal slide groove (7) is arranged in the middle of the moving seat (3), a first inclined groove (8) adapted to the inclined rod (4) is arranged in the upper part of the moving seat (3), the first inclined groove (8) penetrating downwardly through the horizontal slide groove (7), an end of the sliding block (5) close to the product cavity (2) passes through the horizontal slide groove (7) and slidably cooperates with the horizontal slide groove (7), a second inclined groove adapted to the inclined rod (4) is arranged in the middle of the sliding block (5), and the The inclined rod (4) is arranged between the first inclined groove (8) and the second inclined groove, and the upper part of the inclined rod (4) passes through the outside of the movable seat (3); the upper part of the end of the sliding block (5) close to the product cavity (2) is provided with an inclined slide rail (9); the lower part of the insert pressing block (6) is provided with an inclined slide groove (10) matched with the inclined slide rail (9); one side of the insert pressing block (6) and the movable seat (3) are slidably matched; the upper part of the insert pressing block (6) and the upper part of the movable seat (3) are respectively provided with an undercut groove (12) matched with the undercut (11) of the injection molded part (1); the undercut groove (12) is located at the contact surface between the insert pressing block (6) and the movable seat (3).
2. The demoulding mold for undercut injection molding according to claim 1, characterized in that: The number of the molding components is two, and the two molding components are respectively arranged on two sides of the product cavity (2).
3. The demoulding mold for undercut injection molding according to claim 1, characterized in that: The movable seat (3) comprises a main body (13), a spring assembly and a mounting seat (14); the mounting seat (14) is located on a side of the main body (13) close to the product cavity (2); the spring assembly comprises a horizontally arranged spring (15); the spring (15) connects the main body (13) and the mounting seat (14); the insert pressing block (6) is slidably mounted on the mounting seat (14).
4. The demoulding mold for undercut injection molding according to claim 3, characterized in that: The horizontal slide groove (7) passes through the main body (13) and the mounting seat (14).
5. The demoulding mold for undercut injection molding according to claim 1, characterized in that: A pneumatic push-pull assembly is provided on the side of the movable seat (3) away from the product cavity (2).
6. The demoulding mold for undercut injection molding according to claim 5, characterized in that: The pneumatic push-pull assembly comprises a push-pull block (16), one end of the push-pull block (16) being connected to the moving seat (3).
7. The demoulding mold for undercut injection molding according to claim 5 or 6, characterized in that: The first inclined groove (8) of the movable seat (3) is a waist-shaped groove, and the length of the waist-shaped groove is greater than the outer diameter of the inclined rod (4). A horizontal guide groove (17) is provided on one side of the movable seat (3), and a guide column (18) adapted to the horizontal guide groove (17) is provided on the side of the sliding block (5).