Slide block structure for inverted buckle of injection molding product

Abstract

The utility model discloses a slide block structure for an inverted buckle of an injection molding product, which relates to the technical field of injection molding, and adopts the technical scheme that the slide block structure comprises a first slide block, a second slide block, a third slide block and a fourth slide block, the two moving directions are opposite. The driving assembly is in linkage with the first sliding block and the second sliding block and can drive the first sliding block and the second sliding block to slide. The demolding mechanism has the beneficial effects that the demolding mechanism can be applied to a special structure with inverted buckles on the two sides of an injection molding product, the driving assembly is adopted to drive the first sliding block and the second sliding block to move towards different directions, and the demolding problem of the inverted buckles of the product can be well solved. The scheme is small in occupied space, simple and reliable in structure and capable of effectively improving the production efficiency, reducing the cost and ensuring the quality of mass-produced products.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an undercut slider structure of an injection molding product. Background Art

[0002] Injection molding is a common process in modern product production. With the advancement of injection molding technology and injection molding materials, more and more products can rely on injection molding technology for large-scale rapid production. However, due to the diversified demands for different products, there are also various problems in the injection molding process.

[0003] When undercuts appear in injection molded products, the undercut structure will be deformed due to the mold opening direction. For this problem, sliders and inclined ejector mechanisms are often used to achieve demolding. However, when a special structure with undercuts both inside and outside a certain part of the product appears in the injection molded product, this structure is more difficult to handle. The existing technical solution is to use an external slider to demold the external undercuts and an inclined ejector to demold the internal undercuts. This method cannot solve the deformation problem of the product undercuts when the product structure and space are limited and the inclined ejector mechanism cannot be designed. The only option is to modify the product or use complex structures such as cylinder sliders, rack sliders, etc., which are costly and low in safety. Summary of the invention

[0004] In view of one of the deficiencies of the prior art, the utility model provides a slider structure for undercutting an injection molded product, which solves the demoulding problem of undercutting on both sides of the injection molded product.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a slider structure for an injection molded product with an undercut, comprising:

[0006] A first slider is arranged on one side of the undercut structure of the product, and the first slider can slide toward or away from the product;

[0007] A second slider is arranged opposite to the first slider and is located on the other side of the undercut structure of the product. The second slider can slide toward or away from the product.

[0008] A driving component, linked with the first slider and the second slider, capable of driving the first slider and the second slider to slide;

[0009] When the first slider moves toward the product, the second slider moves toward the first slider, and when the second slider moves away from the product, the second slider moves away from the first slider;

[0010] A forming portion corresponding to the undercuts on two sides of the product is arranged on one side of the first sliding block opposite to the second sliding block.

[0011] Preferably, the driving component can slide in linkage with the movable mold of the injection mold, and the driving component can slide in linkage with the first slider and the second slider.

[0012] Preferably, the mold opening direction during product injection molding is taken as the first direction, and the movement direction perpendicular to the first direction is taken as the second direction;

[0013] The movement directions of the first and second sliding blocks are parallel to the second direction, and the movement direction of the driving assembly is parallel to the first direction.

[0014] Preferably, when the driving assembly moves, the first slider and the second slider move synchronously.

[0015] Preferably, the first direction is a vertical direction, and the second direction is a horizontal direction;

[0016] The first slider and the second slider move in opposite directions.

[0017] Preferably, the driving assembly comprises:

[0018] A first driving member, linked to the first sliding block;

[0019] A second driving member, linked to the second sliding block;

[0020] The first driving member and the second driving member move synchronously, and the two move in the same direction.

[0021] Preferably, the first driving member is an inclined rod, a first guide hole corresponding to the first driving member is opened on the block of the first sliding block, and the first driving member is coaxially slidably connected with the first guide hole;

[0022] The second driving member is an inclined rod, and a second guide hole corresponding to the second driving member is opened on the block of the second sliding block, and the second driving member is coaxially slidably connected with the second guide hole.

[0023] Preferably, the upper end of the first driving member is arranged close to the product, and the lower end is arranged away from the product;

[0024] The upper end of the second driving member is arranged away from the product, and the lower end is arranged close to the product.

[0025] Preferably, the second driving member is provided with one, which is located in the middle area of ​​the second sliding block;

[0026] Two first driving members are provided, and the two first driving members are located on both sides of the first driving member.

[0027] Preferably, it also includes:

[0028] A limit assembly is used to limit the movement direction of the first slider and the second slider; the limit assembly includes:

[0029] A first limiter is provided corresponding to the first slider, and the first limiter moves synchronously with the driving assembly; a first inclined surface is provided on a side of the first limiter away from the product, and a limiting inclined surface corresponding to the first inclined surface is provided on a side of the first limiter facing the first limiter, and the first slider and the first limiter are fitted together through the first inclined surface and the limiting inclined surface;

[0030] The second limiting member is arranged corresponding to the second sliding block, the second limiting member is fixedly connected to the external injection molding structure, and the second sliding block is slidably connected to the second limiting member.

[0031] Compared with the prior art, the present invention has the following beneficial effects: the structure of the present invention can be applied to special structures with undercuts on both sides of injection molded products. The present invention adopts a driving assembly to drive the first slider and the second slider to move in different directions respectively, and when the driving assembly moves with the movable mold, the first slider and the second slider can move in linkage, which can well solve the demoulding problem of undercuts of products. The present invention occupies a small space, has a simple and reliable structure, can effectively improve production efficiency, reduce costs, and ensure the quality of mass-produced products. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The overall structure of the embodiment of the present application is shown in FIG. Figure 1 ;

[0033] Figure 2 The overall structure of the embodiment of the present application is shown in FIG. Figure 2 ;

[0034] Figure 3 The overall structure of the embodiment of the present application is shown in FIG. Figure 3 ;

[0035] Figure 4 for Figure 3 Hide the first slider state diagram;

[0036] Figure 5 This is a front view of an embodiment of the present application;

[0037] Figure 6 for Figure 5 Hide the first slider state diagram.

[0038] In the figure:

[0039] 1. First slider; 2. Second slider; 3. Driving assembly; 31. First driving assembly; 32. Second driving assembly; 4. Limiting assembly; 41. First limiting member; 42. Second limiting member. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See also Figure 1-Figure 6 , this application provides the following technical solutions:

[0042] A slider structure for an undercut of an injection molded product comprises a first slider 1 and a second slider 2 respectively arranged on both sides of an undercut position of a product 100. The first slider 1 is arranged on one side of the undercut structure of the product 100, and the second slider 2 is located on the other side of the undercut structure of the product 100. A molding part corresponding to the undercuts on both sides of the product 100 is arranged on the opposite side of the first slider 1 and the second slider 2. The molding part is used to complete the molding of the undercuts on both sides of the product 100 during injection molding. The first slider 1 and the second slider 2 can both perform translational sliding motion toward or away from the product 100, and the two motion directions are opposite. The first slider 1 and the second slider 2 are both linked to a driving component 3. The driving component 3 slides in linkage with the movable mold of the injection mold, and the driving component 3 can slide in linkage with the first slider 1 and the second slider 2 during sliding.

[0043] The mold opening direction during injection molding of the product 100 is taken as the first direction, and the movement direction perpendicular to the first direction is taken as the second direction; the movement directions of the first slider 1 and the second slider 2 are parallel to the second direction, and the movement direction of the driving component 3 is parallel to the first direction.

[0044] If the first direction, i.e., the mold opening direction, is the vertical direction, the second direction is the horizontal direction. Driven by the driving assembly 3, when the first slider 1 moves toward the product 100, the second slider 2 moves toward the first slider 1; when the second slider 1 moves away from the product 100, the second slider 2 moves away from the first slider 1.

[0045] Through the structure of this solution, the driving assembly 3 is used as the driving structure of the first slider 1 and the second slider 2 at the same time, and the first slider 1 and the second slider 2 are synchronously driven to move in different directions by the driving assembly 3, so as to complete the separation from the undercuts on both sides of the product 100. This structure only needs to consider the setting of the first slider 1 and the second slider 2, that is, the linkage setting of the driving assembly 3 and the movable mold, and occupies very little space, and has a good application effect for the product 100 with undercuts on both sides in a small space.

[0046] On the basis of the above implementation scheme, when the driving assembly 3 moves, the first slider 1 and the second slider 2 move synchronously. In this solution, the driving assembly 3 and the first slider 1 and the second slider 2 move synchronously, that is, the driving assembly 3 rises with the opening action of the movable mold, and the first slider 1 and the second slider 2 move synchronously to both sides.

[0047] According to actual needs, it can also be set so that there is a time difference between the movement of the drive component 3 and the mold opening action. For example, when the mold opening action starts, the drive component 3 moves again after a certain time difference. In this way, the undercut body can be provided with the cooling time of the above-mentioned time difference to avoid the situation of pulling deformation. For the setting method of the movement time difference of the drive component 3, the existing scheme can be adopted. If the drive component 3 and the movable mold are directly connected, the mold opening time of the movable mold and the action time of the drive component 3 are synchronized. When a delayed linkage structure is set between the drive component 3 and the movable mold, the time difference can be reserved. For the delayed linkage structure, reference can be made to the existing technology. This is not the key point of this scheme and will not be repeated here.

[0048] Based on the above implementation scheme, the driving assembly 3 includes a first driving member 31 linked to the first slider 1, and a second driving member 32 linked to the second slider 2; the first driving member 31 and the second driving member 32 move synchronously, and the two move in the same direction.

[0049] This solution provides a specific implementation form of a driving assembly 3, wherein the first driving member 31 is an inclined rod, and a first guide hole corresponding to the first driving member 31 is provided on the block of the first slider 1, and the first driving member 31 is coaxially slidably connected with the first guide hole. The second driving member 32 is also an inclined rod, and a second guide hole corresponding to the second driving member 32 is provided on the block of the second slider 2, and the second driving member 32 is coaxially slidably connected with the second guide hole. The upper end of the first driving member 31 is arranged close to the product 100, and the lower end is arranged away from the product 100; the upper end of the second driving member 32 is arranged away from the product 100, and the lower end is arranged close to the product 100.

[0050] One second driving member 32 is provided and located in the middle area of ​​the second sliding block 2 ; two first driving members 31 are provided and the two first driving members 31 are located on both sides of the first driving member 32 .

[0051] Through the setting of inclined rods and guide holes, Figure 5 and Figure 6 For direction reference, with upward as the mold opening direction, when the first driving member 31 and the second driving member 32 move upward, the first slider 1 moves toward the right due to the cooperation between the first guide hole and the first driving member 31; the second slider 2 moves toward the left due to the cooperation between the second guide hole and the second driving member 32.

[0052] On the basis of the above implementation scheme, this solution further provides a limit assembly 4, which is used to limit the movement direction of the first slider 1 and the second slider 2; the limit assembly 4 includes a first limit member 41 and a second limit member 42.

[0053] The first limiter 41 is provided corresponding to the first slider 1, and the first limiter 41 moves synchronously with the driving assembly 3; a first inclined surface is provided on the side of the first limiter 41 away from the product 100, and a limiting inclined surface corresponding to the first inclined surface is provided on the side of the first limiter 42 facing the first limiter 41, and the first slider 1 and the first limiter 42 are fitted together through the first inclined surface and the limiting inclined surface;

[0054] The second position-limiting member 42 is disposed corresponding to the second sliding block 2 . The second position-limiting member 42 is fixedly connected to the external injection molding structure. The second sliding block 2 is slidably connected to the second position-limiting member 42 .

[0055] like Figure 4 As shown, the product 100 of this solution is an annular body, and the second slider 2 adopts a rectangular block structure as the overall structure, and an upward extension structure is provided inverted toward the inner side of the product 100. The first slider 1 is approximately a trapezoidal block as a whole, and a notch begins to be formed on its lower side, which is concave upward and corresponds to the rectangular block part of the second slider 2. The first slider 1 is buckled on the second slider 2 through the notch, and the first slider 1 and the second slider 2 are slidably connected.

[0056] Symmetrical limiting wing plates are arranged at the lower part of the second sliding block 2 , and the second limiting member 42 is a limiting block corresponding to the two limiting wing plates. After being connected with the external injection molding structure, the lower side of the second limiting member 42 forms a sliding space for the limiting wing plates.

[0057] A side limit block is also provided on the side of the first sliding block 1 , and the side limit block and the notch structure of the first sliding block 1 are combined to ensure that the first sliding block 1 will not be offset when it moves laterally.

[0058] The first stopper 41 also adopts a trapezoidal block structure, and one of the trapezoidal inclined surfaces fits the inclined surface of the first slider 1 away from the product 100. The second slider 2 is provided with a socket corresponding to the first stopper 41, and when the first stopper 41 moves downward, its lower part can be inserted into the socket of the second slider 2.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A slider structure for an undercut injection molded product, characterized in that: include: A first sliding block (1) is arranged on one side of the undercut structure of the product (100), and the first sliding block (1) can slide in a translational manner towards or away from the product (100); A second sliding block (2) is arranged opposite to the first sliding block (1) and is located on the other side of the undercut structure of the product (100); the second sliding block (2) can slide in a translational manner towards or away from the product (100); A driving component (3) is linked with the first sliding block (1) and the second sliding block (2) to drive the first sliding block (1) and the second sliding block (2) to slide; When the first slider (1) moves toward the product (100), the second slider (2) moves toward the first slider (1); when the second slider (2) moves away from the product (100), the second slider (2) moves away from the first slider (1); A molding portion that is inverted corresponding to two sides of the product (100) is provided on one side of the first sliding block (1) and the second sliding block (2) that is opposite to each other.

2. The undercut slider structure of the injection molded product according to claim 1, characterized in that: The driving component (3) can slide in conjunction with the movable mold of the injection mold, and the driving component (3) can slide in conjunction with the first sliding block (1) and the second sliding block (2).

3. The slider structure of the injection molded product undercut according to claim 2, characterized in that: The mold opening direction during injection molding of the product (100) is taken as the first direction, and the movement direction perpendicular to the first direction is taken as the second direction; The movement direction of the first sliding block (1) and the second sliding block (2) is parallel to the second direction, and the movement direction of the driving component (3) is parallel to the first direction.

4. The undercut slider structure of the injection molded product according to claim 2, characterized in that: When the driving component (3) moves, the first slider (1) and the second slider (2) move synchronously.

5. The undercut slider structure of the injection molded product according to claim 3, characterized in that: The first direction is a vertical direction, and the second direction is a horizontal direction; The movement directions of the first sliding block (1) and the second sliding block (2) are opposite.

6. The undercut slider structure of the injection molded product according to claim 2, characterized in that: The driving component (3) comprises: A first driving member (31) linked to the first sliding block (1); A second driving member (32) linked to the second sliding block (2); The first driving member (31) and the second driving member (32) move synchronously, and their movement directions are the same.

7. The undercut slider structure of the injection molded product according to claim 6, characterized in that: The first driving member (31) is an inclined rod, a first guide hole corresponding to the first driving member (31) is opened on the block of the first sliding block (1), and the first driving member (31) is coaxially slidably connected with the first guide hole; The second driving member (32) is an inclined rod, and a second guide hole corresponding to the second driving member (32) is opened on the block of the second sliding block (2), and the second driving member (32) is coaxially slidably connected with the second guide hole.

8. The undercut slider structure of the injection molded product according to claim 7, characterized in that: The upper end of the first driving member (31) is arranged close to the product (100), and the lower end is arranged away from the product (100); The upper end of the second driving member (32) is arranged away from the product (100), and the lower end is arranged close to the product (100).

9. The undercut slider structure of the injection molded product according to claim 8, characterized in that: The second driving member (32) is provided with one and is located in the middle area of ​​the second sliding block (2); Two first driving members (31) are provided, and the two first driving members (31) are located on both sides of the first driving member (31).

10. The undercut slider structure of an injection molded product according to any one of claims 1 to 9, characterized in that: Also includes: A limit assembly (4) is used to limit the movement direction of the first slider (1) and the second slider (2); the limit assembly (4) comprises: A first limiting member (41) is provided corresponding to the first sliding block (1), and the first limiting member (41) moves synchronously with the driving assembly (3); a first inclined surface is provided on a side of the first limiting member (41) away from the product (100), and a limiting inclined surface corresponding to the first inclined surface is provided on a side of the second limiting member (42) facing the first limiting member (41); the first sliding block (1) and the second limiting member (42) are fitted together via the first inclined surface and the limiting inclined surface; The second position-limiting member (42) is arranged corresponding to the second sliding block (2); the second position-limiting member (42) is fixedly connected to the external injection molding structure; and the second sliding block (2) is slidably connected to the second position-limiting member (42).

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