A slider inclined pin structure and an injection mold applying the same

Abstract

The utility model provides a kind of slider inclined pin structure and injection mould applied it, including slider, shovel, inclined pin into son, ejector and spring, shovel includes inclined guide surface, and limit straight surface is opened on it, the side of slider is slidably relied on inclined guide surface, the side of slider is opened step hole, the top of slider is opened dismounting through-hole and inclined guide through-hole, ejector is slidably inserted in step hole, and ejector includes ejector pin and limit top post, the needle end of ejector pin is opened annular groove for forming T type draw hook, T type draw hook is located in inclined guide through-hole, and limit top post includes cylindrical end and hemispherical end, cylindrical end is fixed in the boss end of ejector pin, hemispherical end is set on limit straight surface before tripping, spring is sleeved in the needle end of ejector pin, and two ends are respectively set in the step surface of step hole and the step surface of ejector pin, inclined pin into son includes forming end and driving end, driving end is obliquely inserted into dismounting through-hole, and T type slide groove is equipped on driving end, and T type draw hook is slidably clamped in T type slide groove.

Description

Technical Field

[0001] This utility model belongs to the field of complex mold technology, and in particular relates to a slider inclined pin structure and an injection mold using it. Background Technology

[0002] like Figure 1 As shown, a common injection mold generally includes a front mold 80 and a rear mold 90. The front mold 80 includes a front mold fixing plate 81, an A plate 82, and a front mold core 83. The front mold fixing plate 81 and the A plate 82 are fixedly connected. The front mold core 83 is embedded and fixed on the A plate 82 on the side away from the front mold fixing plate 81. The rear mold 90 includes a B plate 91, a rear mold core 92, ejector pins 93, ejector plate 94, a spacer block 95, a rear mold base plate 96, and ejector rollers 97. The rear mold core 92 is embedded on the B plate 91 on the side closer to the A plate 82. The two ends of the spacer block 95 are respectively ejected and fixed between the B plate 91 and the rear mold base plate 96 along the mold opening direction, forming a movement space 98. The rear mold base plate 96 is fixed to the movable side of the injection molding machine. The ejector plate 94 is set in the motion space 98, which can be moved away from or closer to the B plate 91. One end of the ejector pin 93 is fixed in the ejector plate 94, and the other end passes through the B plate 91 and the rear mold core 92 in sequence. One end of the ejector roller 97 is connected to the drive shaft of the injection molding machine, and the other end can slide through the rear mold base plate 96 and be ejected on the ejector plate 94. When the injection molded product is completed, the B plate 91 is driven by the rear mold base plate 96 to gradually move away from the A plate 82 until the mold is opened. The injection molded product left on the rear mold 90 is ejected by the ejector pin 93 along the mold opening direction under the action of the ejector roller 97, and the molded part is obtained.

[0003] However, when the release direction of the lateral latch of an injection molded product is perpendicular to the mold opening direction, and the release direction is also perpendicular to the lateral movement direction of the slider, conventional slider structures cannot stably and conveniently achieve its release. Therefore, how to stably and conveniently achieve the lateral release of injection molded products with release directions that are simultaneously perpendicular to the mold opening direction and the lateral movement direction of the slider becomes a problem that needs to be solved. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a slider inclined pin structure and an injection mold using it, in order to solve the problem of how to stably and conveniently achieve lateral release of injection molded products with the release direction perpendicular to both the mold opening direction and the slider lateral movement direction.

[0005] This utility model provides a slider-pin structure, including a slider, a shovel, a slanted pin insert, an ejector, and a spring. The shovel is fixed to the front mold and includes an inclined guide surface with a limiting straight surface. The slider is disposed in the rear mold, and one side of the slider can slide against the inclined guide surface. The slider has displacements in a first direction and a second direction during sliding. The first direction is the mold opening direction, and the second direction is the lateral displacement direction of the slider relative to the rear mold. The first direction is perpendicular to the second direction. A stepped hole extending along the second direction is provided on one side of the slider. A disassembly and assembly through hole extending along the first direction is provided on the top of the slider. An inclined guide hole is also provided on the top of the slider. The ejector is slidably inserted into the stepped hole along the second direction. The ejector includes a ejector pin and a limiting ejector post. An annular groove is provided at the end of the ejector pin to form a T-shaped hook, which is located in the inclined guide hole. The limiting ejector post includes a cylindrical end and a connection to... The cylindrical end has a hemispherical end, which is fixed to the boss end of the ejector pin on the side away from the pin end of the ejector pin. The hemispherical end is positioned on the limiting straight surface before the injection molded product is released. A spring is sleeved on the pin end of the ejector pin, and the two ends of the spring are respectively positioned on the stepped surface of the stepped hole and the stepped surface of the ejector pin. The inclined pin includes a forming end and a driving end. The forming end is used to form a lateral locking position of the injection molded product in a third direction. The third direction is perpendicular to the first direction and the second direction. The driving end is obliquely inserted into the disassembly and assembly through hole from the other side of the slider along the fourth direction. The fourth direction is perpendicular to the first direction and has a first inclination angle with the second direction. The driving end is provided with a T-shaped groove extending along the third direction. The T-shaped hook can be slidably locked in the T-shaped groove along the third direction to drive the inclined pin to slide relative to the slider along the fourth direction, thereby releasing the lateral locking position of the injection molded product in the third direction. The T-shaped hook is always located in the disassembly and assembly through hole before and after the release.

[0006] Optionally, the slider inclined pin structure also includes a headless screw with a clearance hole inside. The cylindrical end passes through the clearance hole. The headless screw is adjusted and threadedly connected to the side of the stepped hole near the shovel, and is used to limit the upper position pin in the second direction.

[0007] Optionally, the ejector is a one-piece molded part.

[0008] Optionally, the T-shaped hook remains inside the disassembly / removal through hole before and after the injection-molded product is released.

[0009] Optionally, the pin tip is inserted into the small hole that passes through the stepped hole, and the protruding end of the pin is set inside the large hole of the stepped hole.

[0010] Optionally, the angled insert, ejector, and spring are located on the same side of the angled through hole.

[0011] Optionally, after the molding end disengages from the lateral locking of the injection molded product in the third direction, the hemispherical end begins to disengage from the limiting face.

[0012] This utility model also provides an injection mold, including: any of the slider-pin structures described above, plate A, plate B and inclined guide post, wherein the shovel in the slider-pin structure is fixed on the side of plate A near plate B, the slider in the slider-pin structure is slidably disposed on plate B along a second direction, one end of the inclined guide post is fixed on plate A, and the other end of the inclined guide post passes through the inclined guide hole in the slider-pin structure.

[0013] Optionally, the injection mold may also include a front mold fixing plate, and one end of the inclined guide post is pressed and fixed inside the A plate by the front mold fixing plate.

[0014] Optionally, the injection mold may also include a limiting screw, which is fixed to plate B and located on the outside of the slider to limit the sliding displacement of the slider on plate B.

[0015] Compared with the prior art, the slider inclined pin structure and the injection mold using it provided by this utility model have a simplified structure and ingenious design. For the case where the release direction of the lateral locking position of the injection molded product is perpendicular to both the mold opening direction and the slider lateral movement direction, the lateral locking can be conveniently and stably achieved during mold opening, which greatly improves the efficiency and quality of the injection molded product. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a commonly used injection mold.

[0018] Figure 2 This is a schematic diagram of the slider pin structure of an embodiment of the present invention before lateral release, viewed from one angle.

[0019] Figure 3 This is a schematic diagram of the slider pin structure of an embodiment of the present invention before lateral release, viewed from another angle.

[0020] Figure 4 This is a schematic diagram of the slider pin structure of an embodiment of the present invention after lateral release, viewed from one angle.

[0021] Figure 5 This is a schematic diagram of the slider pin structure of one embodiment of the present invention after lateral release, viewed from another angle.

[0022] Figure 6This is a schematic diagram of the structure of an injection mold according to an embodiment of the present invention. Detailed Implementation

[0023] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please refer to the reference. Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model provides a slider-pin structure 100, including a slider 1, a shovel 2, a pin insert 3, an ejector 4, and a spring 5.

[0026] The shovel 2 is fixed to the front mold. The shovel 2 includes an inclined guide surface 21, and a limiting straight surface 22 is provided at the inclined guide surface 21.

[0027] The slider 1 is set in the rear mold. One side of the slider 1 can slide against the inclined guide surface 21. When sliding, the slider 1 has displacement in the first direction X and the second direction Y. The first direction X is the mold opening direction, and the second direction Y is the lateral displacement direction of the slider 1 relative to the rear mold. The first direction X is perpendicular to the second direction Y. A stepped hole 11 extending along the second direction Y is opened on one side of the slider 1. A disassembly and assembly through hole 12 extending along the first direction X is opened on the top of the slider 1. An inclined guide hole 13 is also opened on the top of the slider 1.

[0028] Ejector 4 is slidably inserted into step hole 11 along second direction Y. Ejector 4 includes ejector pin 41 and limiting ejector post 42. The needle end of ejector pin 41 has an annular groove for forming T-shaped hook 411. T-shaped hook 411 is located in oblique guide hole 13. Limiting ejector post 42 includes cylindrical end 421 and hemispherical end 422 connected to cylindrical end 421. Cylindrical end 421 is fixed on the boss end of ejector pin 41 on the side away from the needle end of ejector pin 41. Hemispherical end 422 is pushed on limiting straight surface 22 before the injection molded product is released.

[0029] Spring 5 is sleeved on the end of ejector pin 41, and the two ends of spring 5 are respectively abutted on the stepped surface of stepped hole 11 and the stepped surface of ejector pin 41.

[0030] The inclined pin insert 3 includes a forming end 31 and a driving end 32. The forming end 31 is used to form a lateral latch 102 of the injection molded product in the third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y. The driving end 32 is obliquely inserted into the disassembly and assembly through hole 12 from the other side of the slider 1 along the fourth direction W. The fourth direction W is perpendicular to the first direction X. The fourth direction W has a first inclination angle α with the second direction Y. The driving end 32 is provided with a T-shaped groove 321 extending along the third direction Z. The T-shaped hook 411 can be slidably locked in the T-shaped groove 321 along the third direction Z, and is used to drive the inclined pin insert 3 to slide relative to the slider 1 along the fourth direction W, thereby removing the lateral latch 102 of the injection molded product in the third direction Z. The T-shaped hook 411 is always located in the disassembly and assembly through hole 12 before and after the latch is released.

[0031] Optionally, the slider inclined pin structure 100 also includes a headless screw 6, which has a clearance through hole 61. The cylindrical end 421 passes through the clearance through hole 61. The headless screw 6 is adjustablely threaded into the stepped hole 11 on the side near the shovel 2, and is used to limit the ejector pin 41 in the second direction Y. This can effectively prevent the ejector 4 from falling off, and can also limit the position of the inclined pin insert 3 by limiting the ejector 4.

[0032] Optionally, ejector 4 can be a single-piece molded part. This facilitates improved coaxiality and strength.

[0033] Optionally, the T-shaped hook 411 remains within the disassembly and assembly through hole 12 before and after the injection-molded product is released. That is, the size of the disassembly and assembly through hole 12 needs to cover the engagement part of the T-shaped hook 411 and the T-shaped slide 321 during movement, which facilitates the disassembly and assembly of the T-shaped hook 411 on the T-shaped slide 321.

[0034] Optionally, the tip of the ejector pin 41 is inserted through the small hole of the stepped hole 11, and the boss end of the ejector pin 41 is set inside the large hole of the stepped hole 11. In this way, the insertion and cooperation between the tip of the ejector pin 41 and the small hole of the stepped hole 11 can effectively prevent the ejector pin 41 from shaking in the first direction X and the third direction Z.

[0035] Optionally, the inclined pin 3, the ejector 4, and the spring 5 are located on the same side of the inclined guide hole 13. This arrangement does not affect the sliding of the slider 1 along the inclined guide post 9.

[0036] Optionally, after the molding end 31 disengages from the lateral latch 102 in the third direction Z of the injection molded product, the hemispherical end 422 begins to disengage from the limiting face 22. This ensures that the injection molded product is completely disengaged from the lateral latch 102 in the third direction Z.

[0037] Please refer to the reference. Figure 6As shown, this utility model also provides an injection mold 101, including: any of the slider-pin structure 100, A plate 7, B plate 8 and inclined guide post 9 described above. The shovel 2 in the slider-pin structure 100 is fixed on the side of A plate 7 near B plate 8. The slider 1 in the slider-pin structure 100 is slidably disposed on B plate 8 along the second direction Y. One end of the inclined guide post 9 is fixed on A plate 7, and the other end of the inclined guide post 9 passes through the inclined guide hole 13 in the slider-pin structure 100.

[0038] Optionally, the injection mold 101 also includes a front mold fixing plate 10, and one end of the inclined guide post 9 is pressed and fixed inside the A plate 7 by the front mold fixing plate 10. This facilitates the assembly and disassembly of the inclined guide post 9.

[0039] Optionally, the injection mold 101 also includes a limiting screw 20, which is fixed to the B plate 8 and located outside the slider 1 to limit the sliding displacement of the slider 1 on the B plate 8. This effectively controls the displacement of the slider 1 on the B plate 8 and prevents it from falling off.

[0040] The operating principle of the slider inclined pin structure 100 of this utility model during application is as follows: When the mold opens, plate B 8 moves away from plate A 7 along the first direction X, and at the same time, it drives slider 1 to move along the first direction X. Due to the guiding effect of the inclined guide post 9 fixed on plate A 7 and the inclined guide surface 21 of the shovel 2, slider 1 slides relative to plate B 8 along the second direction Y. At this time, ejector 4 is kept on the limit surface 22 under the action of spring 5. Before leaving the limit surface 22, ejector 4 remains stationary in the second direction Y, so that the drive end 32 that is locked in the T-shaped hook 411 remains stationary in the second direction Y. However, due to the oblique pulling of the T-shaped hook 411, the oblique pin 3 slides obliquely relative to slider 1 along the fourth direction W, so that the oblique pin 3 moves relative to slider 1 and plate B 8 in the third direction Z. At the same time, since the injection molded product is stationary relative to plate B 8 in the second direction Y, the molding end 31 remains stationary relative to the injection molded product in the second direction Y, and begins to move relative to it in the third direction Z, removing the lateral fastener 102 of the injection molded product in the third direction Z.

[0041] The slider inclined pin structure and the injection mold using it provided by this utility model have a simple structure and ingenious design. For the situation where the release direction of the lateral locking position of the injection molded product is perpendicular to both the mold opening direction and the slider lateral movement direction, the lateral locking can be conveniently and stably achieved during mold opening, which greatly improves the efficiency and quality of the injection molded product.

[0042] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A slider inclined pin structure, characterized in that, Includes slider, forklift, angled pin insert, ejector, and spring; The shovel is fixed to the front mold, and the shovel includes an inclined guide surface, at which a limiting straight surface is formed; The slider is disposed in the rear mold. One side of the slider can slide against the inclined guide surface. When sliding, the slider has displacement in a first direction and a second direction. The first direction is the mold opening direction, and the second direction is the lateral displacement direction of the slider relative to the rear mold. The first direction is perpendicular to the second direction. A stepped hole extending along the second direction is provided on one side of the slider. A disassembly and assembly through hole extending along the first direction is provided on the top of the slider. An inclined guide hole is also provided on the top of the slider. The ejector is slidably inserted into the stepped hole along the second direction. The ejector includes an ejector pin and a limiting ejector post. The ejector pin has an annular groove at its end to form a T-shaped hook. The T-shaped hook is located in the oblique through hole. The limiting ejector post includes a cylindrical end and a hemispherical end connected to the cylindrical end. The cylindrical end is fixed on the boss end of the ejector pin on the side away from the ejector pin's end. The hemispherical end is pressed against the limiting straight surface before the injection-molded product is released. The spring is sleeved on the end of the ejector pin, and the two ends of the spring respectively abut against the stepped surface of the stepped hole and the stepped surface of the ejector pin; The inclined pin includes a forming end and a driving end. The forming end is used to form a lateral fastening position of the injection molded product in a third direction, which is perpendicular to the first direction and the second direction. The driving end is obliquely inserted into the disassembly through hole from the other side of the slider along a fourth direction, which is perpendicular to the first direction and has a first angle with the second direction. The driving end is provided with a T-shaped groove extending along the third direction. The T-shaped hook can be slidably locked in the T-shaped groove along the third direction to drive the inclined pin to slide relative to the slider along the fourth direction, thereby disengaging the lateral fastening position of the injection molded product in the third direction. The T-shaped hook is always located in the disassembly through hole before and after disengagement.

2. The slider inclined pin structure as described in claim 1, characterized in that, It also includes a headless screw with a clearance hole inside, through which the cylindrical end passes. The headless screw is adjustablely threaded into the stepped hole on the side near the shovel, and is used to limit the pin in the second direction.

3. The slider inclined pin structure as described in claim 1, characterized in that, The ejector is a one-piece molded part.

4. The slider inclined pin structure as described in claim 1, characterized in that, The T-shaped hook remains within the disassembly / removal through-hole before and after the injection-molded product is released.

5. The slider inclined pin structure as described in claim 1, characterized in that, The pin tip is inserted into the small hole that passes through the stepped hole, and the protruding end of the pin is set inside the large hole of the stepped hole.

6. The slider inclined pin structure as described in claim 1, characterized in that, The inclined pin, the ejector, and the spring are located on the same side of the inclined through hole.

7. The slider inclined pin structure as described in claim 1, characterized in that, When the molding end disengages from the lateral locking position of the injection molded product in the third direction, the hemispherical end begins to disengage from the limiting surface.

8. An injection mold, characterized in that, include: As described in any one of claims 1-7, the slider-pin structure, plate A, plate B, and inclined guide post are provided, wherein the shovel in the slider-pin structure is fixed on the side of plate A near plate B, the slider in the slider-pin structure is slidably disposed on plate B in a second direction, one end of the inclined guide post is fixed on plate A, and the other end of the inclined guide post passes through the inclined guide hole in the slider-pin structure.

9. The injection mold as described in claim 8, characterized in that, It also includes a front mold fixing plate, one end of which is pressed and fixed inside the A plate by the front mold fixing plate.

10. The injection mold as described in claim 8, characterized in that, It also includes a limiting screw, which is fixed to the B plate and located on the outside of the slider to limit the sliding displacement of the slider on the B plate.

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