Injection mold for manufacturing clamp
By introducing a separation mechanism and a core extraction mechanism into the injection mold, the problem of molding difficulties caused by the toothed structure of the clamp inner edge is solved, and efficient injection molding and cost savings are achieved.
Patent Information
- Application Number
- CN202422002304.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The toothed structure of the inner edge of the clamp makes it difficult to mold out after injection molding, affecting the injection molding cycle and efficiency.
The separation mechanism and the core extraction mechanism are used to cooperate, and the slider slide and the core shrinkage are used to separate the mold core and clamp when opening the mold, and the clamp is removed by a robot to simplify the mold output process.
It improves the efficiency of injection molding, reduces production costs, and simplifies the mold output process.
Smart Images
Figure CN223223801U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of clamp production, and in particular to an injection mold for producing a clamp. Background Art
[0002] The clamp plastic part is a cylindrical structure, usually used to fix the telescopic rod, such as the attached Figure 1 As shown, its outer edge has a convex-concave structure and its inner edge has a tooth-shaped structure.
[0003] During the production of the above-mentioned clamp plastic parts, due to the tooth-shaped structure on the inner edge of the clamp, it is difficult to demold due to the influence of the tooth-shaped structure after the injection molding is completed, which leads to a long injection molding cycle and low efficiency of the parts.
[0004] Therefore, an injection mold is needed that is convenient for demoulding the clamp plastic part, so as to effectively improve the efficiency of injection molding. Utility Model Content
[0005] In order to improve the injection molding efficiency of the clamp plastic part, the present application provides an injection mold for making the clamp.
[0006] The present application provides an injection mold for manufacturing a clamp, which adopts the following technical solution:
[0007] An injection mold for making a clamp, comprising a front mold and a rear mold, the rear mold comprising a push plate and a plate B located directly below the push plate, the push plate being provided with a mold core, the mold core being provided with two opposing sliders, the sliders being slidably engaged with the push plate, a mold core being provided between the two sliders, and when the front mold and the rear mold are closed, a cavity having the same shape as the clamp is formed between the front mold, the rear mold, the sliders, and the mold core;
[0008] It also includes a separation mechanism, which is used to drive the outer slider to separate from the clamp when the front mold and the rear mold are opened;
[0009] The core-pulling mechanism is used to separate the mold core from the clamp when the front mold and the rear mold are opened.
[0010] By adopting the above technical solution, when the front mold and the rear mold are opened, the separation mechanism is used to slide the two sliders in the direction away from the mold core, and the core-pulling structure is used to reduce the inner diameter of the connection between the mold core and the clamp, thereby separating the mold core and the clamp, and then the clamp is taken out by a robot to complete the demolding. The mold has simple demolding and high molding efficiency, which effectively saves the cost of injection molding production.
[0011] Preferably, the mold core includes a core body and a plurality of outer cores slidably arranged on the core body, and when the upper surface of the core body is flush with the upper surface of the outer cores, the core body and the plurality of outer cores form a cylindrical structure;
[0012] The side surface of the core body is gradually inclined toward the core body axis, and the plurality of outer cores are obliquely clamped on the outer surface of the core body.
[0013] By adopting the above technical solution, when the core body moves downward relative to the multiple outer cores, the multiple outer cores slide along the inclined slide grooves on the core body toward the axial direction of the core body, thereby reducing the inner diameter of the top of the multiple outer cores, thereby ensuring the separation between the top of the outer core and the clamp, and facilitating the demolding of the clamp.
[0014] Preferably, the plurality of outer cores are composed of three first special-shaped cores and three second special-shaped cores, and a second special-shaped core is provided between every two of the first special-shaped cores.
[0015] By adopting the above technical solution, the three first special-shaped cores have the same inclination angle with the core body, the three second special-shaped cores have the same inclination angle with the core body, and the second special-shaped cores are more inclined to the core body than the first special-shaped cores. Therefore, in the process of the outer core moving relative to the core body, the second special-shaped core approaches inward faster than the first special-shaped core, thereby achieving the second special-shaped core being located inside the outer edge of the first special-shaped core, and the outer edges of the three first special-shaped cores forming the new outer edge of the outer core, thereby achieving the reduction of the diameter of the outer edge of the outer core, thereby achieving the separation between the mold core and the clamp, and further facilitating the demolding of the clamp.
[0016] Preferably, the core pulling mechanism includes a top plate, which is used to drive the push plate to move. The bottom of the core body is fixedly connected to the B plate. The core body is arranged through the push plate. The multiple outer cores are inserted into the outer surface of the core, and the multiple outer cores are fixedly connected to the upper surface of the push plate.
[0017] By adopting the above technical solution, the top plate drives the push plate to move so that the push plate is separated from the B plate, so that the multiple outer cores move away from the push plate, and the core body shrinks inward relative to the outer core, thereby achieving a reduction in the overall outer edge diameter of the outer core, thereby achieving separation between the mold core and the clamp, and further facilitating the demolding of the clamp.
[0018] Preferably, the separation mechanism includes two fixed parts arranged opposite to each other and a movable part located on one side of the two fixed parts, the fixed parts are fixedly connected to the B plate, the movable part is slidably arranged on the push plate and fixedly connected to the slider, and a linkage structure is provided between the fixed part and the movable part, and the linkage structure is used to drive the movable part to move in a direction away from the mold core when the push plate moves away from the B plate.
[0019] By adopting the above technical solution, the movable part is driven to move in a direction away from the mold core through the linkage structure, so that the two sliders are spread away from the mold core, further facilitating the demoulding of the clamp.
[0020] Preferably, the linkage structure includes a slide groove opened on the fixed part and a linkage block slidably connected to the slide groove, the slide groove is obliquely opened on one side of the fixed part, the slide groove is gradually inclined from bottom to top in the direction away from the mold core, one end of the linkage block is slidably connected to the slide groove, and the other end of the linkage block is fixedly connected to the side of the movable part away from the mold core.
[0021] By adopting the above technical solution, the push plate moves up to drive one end of the linkage block to move along the slide groove, so that the movable part moves on the push plate toward the side away from the mold core, thereby realizing the relative expansion of the two sliders.
[0022] Preferably, each two relatively arranged sliders, the mold core located between the two sliders, the movable part located on the same side of the fixed part and the linkage structure form a group of forming parts. There are two groups of forming parts on the push plate and they are relatively arranged on both sides of the fixed part.
[0023] By adopting the above technical solution, the overall production efficiency of the mold is effectively improved. At the same time, a linkage structure can be set on both sides of each fixed part to facilitate the simultaneous demolding of two molded parts, further improving production efficiency.
[0024] Preferably, the fixing portion is an L-shaped structure, a mounting groove is provided on one side of the B plate, and the bottom of the fixing portion is inserted into the mounting groove and fixed in the mounting groove by bolts.
[0025] By adopting the above technical solution, it is easy to fix the fixed part, and at the same time effectively ensure that the movable part cooperates with the stroke of the linkage structure, thereby improving the stability during operation.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. When the front and rear molds are opened, the separation mechanism is used to slide the two sliders away from the mold core. At the same time, the core-pulling structure is used to reduce the inner diameter of the connection between the mold core and the clamp, thereby separating the mold core and the clamp. The clamp is then removed by a robot to complete the demolding. This mold has simple demolding and high molding efficiency, effectively saving the cost of injection molding production.
[0028] 2. The three first special-shaped cores have the same inclination angle with the core body, and the three second special-shaped cores have the same inclination angle with the core body. The second special-shaped cores are more inclined with the core body than the first special-shaped cores. Therefore, when the outer core moves relative to the core body, the second special-shaped cores move inward faster than the first special-shaped cores. This allows the second special-shaped core to be located inside the outer edge of the first special-shaped core. The outer edges of the three first special-shaped cores form the outer edge of the new outer core, reducing the diameter of the outer edge of the outer core. This allows the mold core and the clamp to be separated, further facilitating demolding of the clamp.
[0029] 3. The push plate is comprehensively utilized to move up and drive one end of the linkage block to move along the slide groove, so that the movable part moves on the push plate toward the side away from the mold core, thereby realizing the relative expansion of the two sliders. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 This is an axonometric diagram mainly showing the clamp structure of this embodiment;
[0031] Figure 2 This is an axial schematic diagram mainly showing the overall structure of the mold in this embodiment;
[0032] Figure 3 for Figure 2 The enlarged schematic diagram of the local A in the middle mainly reflects the linkage structure;
[0033] Figure 4 This is an axial schematic diagram mainly showing the core structure of this embodiment;
[0034] Figure 5 This is a top view mainly showing the structure of the core part of this embodiment.
[0035] Figure numerals: 1. clamp; 2. rear mold; 3. push plate; 4. B plate; 5. mold core; 6. slider; 7. mold core; 71. core body; 72. outer core; 721. first special-shaped core; 722. second special-shaped core; 8. separation mechanism; 81. fixed part; 82. movable part; 83. linkage structure; 831. slide groove; 832. linkage block; 9. top plate. DETAILED DESCRIPTION
[0036] The present application is further described in detail below with reference to the accompanying drawings.
[0037] In the related art, refer to Figure 1 The plastic part of the clamp 1 is a cylindrical structure, which is usually used to fix the telescopic rod. Its outer edge has a convex-concave structure and its inner edge has a toothed structure.
[0038] The embodiment of the present application discloses an injection mold for making a clamp.
[0039] Reference Figure 2The injection mold for making the clamp includes a front mold (which is a conventional injection mold front mold, which will not be described in detail in this embodiment and is not shown in the accompanying drawings) and a back mold 2. The back mold 2 includes a push plate 3 and a B plate 4. At the same time, a top plate 9 (i.e., a core pulling mechanism) is provided in the mold to drive the push plate 3 to move. At the same time, the top plate 9 drives the push plate 3 to move, thereby realizing the separation between the mold core 7 and the clamp 1. A mold core 5 is provided on the push plate 3, and two mold cores 7 are relatively provided on the mold core 5. Sliders 6 are provided on both sides of each mold core 7. The slides 6 are slidably connected to the push plate 3. The mold core 7, the slides 6, and the front and back molds 2 form a cavity with the same shape as the clamp 1. A separation mechanism 8 is also provided in the mold. The separation mechanism 8 is used to expand the slides 6 on both sides of the mold core 7 away from the mold core 7 when the mold is opened.
[0040] Reference Figure 2 and Figure 3 Specifically, the separation mechanism 8 includes fixed portions 81 positioned oppositely from the push plate 3. The fixed portion 81 is L-shaped, with a mounting slot defined on one side of the B plate 4. The bottom portion of the fixed portion 81 is inserted into the mounting slot and secured therein by bolts. Slide slots 831 are defined on either side of the vertical portion of the fixed portion 81. These slots 831 are inclined, gradually tilting upwards away from the mold core 7. Each slot 831 is slidably connected to a horizontally disposed linkage block 832. The end of the linkage block 832 facing away from the slot 831 is fixedly connected to a movable portion 82 via bolts. The movable portion 82 is slidably connected to the push plate 3, and the end of the movable portion 82 facing away from the linkage block 832 is fixedly connected to the slider 6. As the push plate 3 moves upward, the linkage block 832 moves along the slot 831, causing the movable portion 82 to move on the push plate 3 toward the side away from the mold core 7, thereby achieving relative expansion of the two sliders 6.
[0041] Reference Figure 4 and Figure 5 The mold core 7 includes a core body 71 located at the central axis and a plurality of outer cores 72 inserted on the core body 71 along the circumference of the core body 71. The bottom of the core body 71 is fixedly connected to the B plate 4. The core body 71 is arranged on the push plate 3. The plurality of outer cores 72 are inserted into the outer surface of the core body 71, and the plurality of outer cores 72 are fixedly connected to the upper surface of the push plate 3.
[0042] To further illustrate, the plurality of outer cores 72 are obliquely inserted on the core body 71 , and the plurality of outer cores 72 are composed of three first special-shaped cores 721 and three second special-shaped cores 722 , with one second special-shaped core 722 being provided between every two first special-shaped cores 721 . The three first special-shaped cores 721 have the same inclination angle with the core body 71, and the three second special-shaped cores 722 have the same inclination angle with the core body 71. The second special-shaped cores 722 are more inclined with the core body 71 than the first special-shaped cores 721. Therefore, in the process of multiple outer cores 72 moving relative to the core body 71, the second special-shaped cores 722 approach inward faster than the first special-shaped cores 721. Then, in the process of movement, the second special-shaped cores 722 gradually move to the inside of the outer edge of the first special-shaped core 721. The outer edges of the three first special-shaped cores 721 form the new outer edge of the outer core 72, thereby reducing the diameter of the outer edge of the outer core 72, thereby realizing the separation between the mold core 7 and the clamp 1, and further facilitating the demolding of the clamp 1.
[0043] The implementation principle of the injection mold for making a clamp in the embodiment of the present application is as follows: when it is necessary to demould, the push plate 3 is controlled to move away from the B plate 4, so that the linkage block 832 is gradually moved along the slide groove 831, and then the slider 6 is moved in the direction away from the clamp 1. At the same time, when the push plate 3 is away from the B plate 4, the core 71 contracts inwardly relative to the multiple outer cores 72, so that the first special-shaped core 721 and the second special-shaped core 722 slide relative to the axis of the core 71. The second special-shaped core 722 and the core body 71 are more inclined than the first special-shaped core 721 and the core body 71. Therefore, in the process of the outer core 72 moving relative to the core body 71, the second special-shaped core 722 approaches inward faster than the first special-shaped core 721, so that after the movement, the second special-shaped core 722 is located inside the outer edge of the first special-shaped core 721, thereby reducing the overall outer edge diameter of the mold core 7, separating it from the clamp 1, and then the clamp 1 can be demolded by the robot.
[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An injection mold for making a clamp, comprising a front mold and a back mold (2), characterized in that: The rear mold (2) includes a push plate (3) and a B plate (4) located directly below the push plate (3); a mold core (5) is provided on the push plate (3); two opposing sliders (6) are provided on the mold core (5); the sliders (6) and the push plate (3) are slidably matched; a mold core (7) is provided between the two sliders (6); when the front mold and the rear mold (2) are closed, a cavity having the same shape as the clamp (1) is formed between the front mold, the rear mold (2), the sliders (6) and the mold core (7); It also includes a separation mechanism (8), which is used to drive the outer slide (6) to separate from the clamp (1) when the front mold and the rear mold (2) are opened; A core-pulling mechanism is used to separate the mold core (7) from the clamp (1) when the front mold and the rear mold (2) are opened.
2. The injection mold for making a clamp according to claim 1, characterized in that: The mold core (7) comprises a core body (71) and a plurality of outer cores (72) slidably arranged on the core body (71); when the upper surface of the core body (71) is flush with the upper surface of the outer cores (72), the core body (71) and the plurality of outer cores (72) form a cylindrical structure; The side surface of the core (71) is gradually inclined toward the axis of the core (71), and the plurality of outer cores (72) are obliquely clamped on the outer surface of the core (71).
3. The injection mold for making a clamp according to claim 2, characterized in that: The plurality of outer cores (72) are composed of three first special-shaped cores (721) and three second special-shaped cores (722), and a second special-shaped core (722) is provided between every two of the first special-shaped cores (721).
4. The injection mold for making a clamp according to claim 2, characterized in that: The core-pulling mechanism includes a top plate (9), which is used to drive the push plate (3) to move. The bottom of the core body (71) is fixedly connected to the B plate (4). The core body (71) is arranged on the push plate (3). The plurality of outer cores (72) are inserted into the outer surface of the core body (71), and the plurality of outer cores (72) are fixedly connected to the upper surface of the push plate (3).
5. The injection mold for making a clamp according to claim 1, characterized in that: The separation mechanism (8) includes two fixed parts (81) arranged opposite to each other and a movable part (82) located on one side of the two fixed parts (81), wherein the fixed parts (81) are fixedly connected to the B plate (4), and the movable part (82) is slidably arranged on the push plate (3) and fixedly connected to the slider (6), and a linkage structure (83) is provided between the fixed part (81) and the movable part (82), and the linkage structure (83) is used to drive the movable part (82) to move in a direction away from the mold core (7) when the push plate (3) moves away from the B plate (4).
6. The injection mold for making a clamp according to claim 5, characterized in that: The linkage structure (83) includes a slide groove (831) provided on the fixed portion (81) and a linkage block (832) slidably connected to the slide groove (831), wherein the slide groove (831) is obliquely provided on one side of the fixed portion (81), and the slide groove (831) is gradually inclined from bottom to top in a direction away from the mold core (7), one end of the linkage block (832) is slidably connected to the slide groove (831), and the other end of the linkage block (832) is fixedly connected to a side of the movable portion (82) away from the mold core (7).
7. The injection mold for making a clamp according to claim 6, characterized in that: Each two sliders (6) arranged opposite to each other, the mold core (7) located between the two sliders (6), the movable part (82) located on the same side of the fixed part (81), and the linkage structure (83) form a group of molding components. A total of two groups of molding components are provided on the push plate (3), and are arranged opposite to each other on both sides of the fixed part (81).
8. The injection mold for making a clamp according to claim 5, characterized in that: The fixing portion (81) is an L-shaped structure, a mounting groove is provided on one side of the B plate (4), and the bottom of the fixing portion (81) is inserted into the mounting groove and fixed in the mounting groove by bolts.