Sliding block high-position mold sticking prevention structure

Abstract

The utility model discloses an anti-sticking structure for a sliding block at a high position, which comprises a front mold, a rear mold and a forming cavity, a sliding block component capable of being driven by an inclined ejector rod is arranged on the rear mold, and the anti-sticking structure is characterized in that a sliding chute and a sliding insert in sliding fit with the sliding chute are arranged on the sliding block component, a front mold insert is arranged on the front mold, and a rear mold insert is arranged on the rear mold. The end face of the sliding insert forms part of the cavity wall of the forming cavity, the sliding insert can be limited by the front mold insert and cannot slide together with the sliding block assembly in the core pulling direction during mold opening, and an elastic piece capable of enabling the sliding insert to slide in the core pulling direction is arranged between the sliding insert and the sliding block assembly. The structure prevents the product from being deformed and even deviated due to local pulling, and the structure is simple and reliable.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an anti-sticking mold structure at a high position of a slide block. Background Art

[0002] Some products have a large contact surface with the slider assembly of the mold and are embedded with the slider assembly after injection molding. Therefore, when the slider assembly is driven by the inclined ejector to perform the core pulling action, the part of the product that contacts the slider assembly is easily adhered to the slider assembly and pulled, resulting in local deformation or even position displacement, thus causing quality problems. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a mold-sticking prevention structure at a high position of a slider.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A high-position anti-sticking mold structure for a slider comprises a front mold and a rear mold, and a molding cavity. The rear mold is provided with a slider assembly that can be driven by a tilted ejector rod. The characteristic is that: the slider assembly is provided with a slide groove and a sliding insert that slidably cooperates with the slide groove, the front mold is provided with a front mold insert, and the end face of the sliding insert constitutes part of the cavity wall of the molding cavity. The sliding insert can be restricted by the front mold insert and will not slide along the core pulling direction together with the slider assembly when the mold is opened, and an elastic member that enables the sliding insert to slide along the core pulling direction is provided between the sliding insert and the slider assembly.

[0006] The ends of the front mold insert are oppositely provided with guiding inclined surfaces.

[0007] The sliding insert is provided with a limiting hole penetrating the sliding insert, and the front mold insert can be located in the limiting hole.

[0008] A limiting structure is provided between the sliding insert and the slider assembly.

[0009] The limiting structure comprises a limiting rod arranged on the slider assembly and a limiting hole arranged on the sliding insert, and the limiting rod can move in the limiting hole.

[0010] The slide groove is a T-shaped groove, and the sliding insert is provided with a T-shaped block that matches the T-shaped groove.

[0011] The slider assembly comprises a large slider and a slider insert fixed above the large slider.

[0012] The beneficial effects of the utility model are as follows: the utility model changes the structure of the slider assembly, adds a sliding insert and a front mold insert, and clamps the sliding insert through the front mold insert when opening the mold, thereby ensuring that the sliding insert of the slider assembly does not move during the core pulling process, thereby being able to support the product and preventing the product from being deformed or even offset due to local pulling, and the structure is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a cross-sectional structural view of the anti-adhesion part structure;

[0015] Figure 2 It is the structural view of the mold;

[0016] Figure 3 It is the structural view of the mold after the front mold is hidden;

[0017] Figure 4 It is the structure view of the anti-adhesive part and the product;

[0018] Figure 5 It is a partial exploded structural view of the anti-adhesive part;

[0019] Figure 6 is a structural view of the sliding insert. DETAILED DESCRIPTION

[0020] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0021] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0022] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0023] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0024] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0025] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0026] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0027] Reference Figures 1 to 6 The utility model discloses a high-position anti-sticking mold structure for a slider, comprising a front mold 1 and a rear mold 2, a molding cavity, a front mold molding part 3 in the front mold 1, a rear mold molding part 4 in the rear mold 2, a slider assembly driven by an inclined ejector rod 5 is provided on the rear mold 2, a slide groove 6 and a sliding insert 7 slidably matched with the slide groove 6 are provided on the slider assembly, and the molding cavity is surrounded by the molding surface of the front mold molding part 3, the molding surface of the rear mold molding part 4, the molding surface of the slider assembly and the end surface of the sliding insert 7. Of course, the end surface of the sliding insert 7 and the molding surface of the slider assembly are on the same side, so that When the product at this location is partially pulled, there will be a support position in the adjacent location to prevent deformation. A front mold insert 8 is provided on the front mold 1. The front mold insert 8 is in the shape of a long strip, and one end is fixed to the front mold 1 by a screw. The sliding insert 7 can be restricted by the front mold insert 8 and will not slide along the core pulling direction together with the slider assembly when the mold is opened. An elastic member (not shown in the figure) that enables the sliding insert 7 to slide along the core pulling direction is provided between the sliding insert 7 and the slider assembly. The elastic member is preferably a compression spring. The core pulling direction in this application refers to a direction perpendicular to the mold opening direction.

[0028] The working principle of the above structure is as follows: when the mold is opened, the rear mold 2, the slider assembly, the sliding insert 7, the rear mold forming part 4 and the product 9 all move linearly along the mold opening direction, and the slider assembly moves linearly along the mold opening direction and along the core pulling direction at the same time through the action of the inclined ejector rod 5, so that it can be separated from the product 9; but at this time, the sliding insert 7 can only move in the core pulling direction due to the restriction of the front mold insert 8, thereby ensuring that the slider assembly supports the product 9 during the core pulling process to prevent the product 9 from sticking to the slider assembly and deforming. After the slider assembly completes the core pulling, the sliding insert 7 also moves over the front mold insert 8. At this time, the elastic member can eject the sliding insert 7 in the core pulling direction, thereby separating the sliding insert 7 from the product 9, and continuing to move with the slider assembly until the limit position, and then ejecting the product 9 through the ejector pin to complete the demolding of the product 9.

[0029] As shown in the figure, the ends of the front mold insert 8 are provided with guide slopes 10, which can ensure that the sliding insert 7 can be slowly pushed out by the elastic member during demoulding, and can also ensure that the sliding insert 7 can be squeezed back to its original position during mold closing.

[0030] As shown in the figure, the sliding insert 7 is provided with a limiting hole 11 which passes through the sliding insert 7, and the front mold insert 8 can be located in the limiting hole 11. The above structure is relatively compact. As a further structure, a limiting structure is provided between the sliding insert 7 and the slider assembly. The limiting structure can prevent the elastic member from ejecting the sliding insert 7 from the slide groove 6. The limiting structure specifically includes a limiting rod 12 arranged on the slider assembly and a limiting hole 13 arranged on the sliding insert 7. The limiting rod 12 can move in the limiting hole 13. Of course, the limiting hole 13 is a long hole, and the limiting rod 12 can be fixed to the slider assembly by a screw, and the head of the screw is located in the limiting hole 13 for limitation.

[0031] As a specific structure, the slide groove 6 is a T-shaped groove, and the sliding insert 7 is provided with a T-shaped block 17 that cooperates with the T-shaped groove; and for the convenience of processing, the slider assembly includes a large slider 14 and a slider insert 15 fixed above the large slider 14, the slider insert 15 is fixed to the large slider 14 by screws, the large slider 14 and the front mold 1 can slide relative to each other, and the sliding structure between the large slider 14 and the front mold 1 is an old structure, so it is not described in detail. The slide groove 6 is arranged on the slider insert 15, and there is a spring hole 16 on the groove wall of the slide groove 6, one end of the compression spring is located in the spring hole, and the other end is against the sliding insert 7.

[0032] The above is a detailed introduction to the anti-sticking mold structure at the high position of the slider provided by an embodiment of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A high-position anti-sticking mold structure for a slider, comprising a front mold and a rear mold, and a molding cavity, wherein the rear mold is provided with a slider assembly that can be driven by an inclined ejector rod, characterized in that: The slider assembly is provided with a slide groove and a sliding insert that slides with the slide groove, and the front mold is provided with a front mold insert. The end face of the sliding insert constitutes part of the cavity wall of the molding cavity. The sliding insert can be restricted by the front mold insert and will not slide along the core pulling direction together with the slider assembly when the mold is opened. An elastic part that enables the sliding insert to slide along the core pulling direction is provided between the sliding insert and the slider assembly.

2. The anti-sticking mold structure at the high position of the slider according to claim 1, characterized in that: The ends of the front mold insert are oppositely provided with guiding inclined surfaces.

3. The anti-sticking mold structure at the high position of the slider according to claim 1, characterized in that: The sliding insert is provided with a limiting hole penetrating the sliding insert, and the front mold insert can be located in the limiting hole.

4. The anti-sticking mold structure at the high position of the slider according to claim 1, characterized in that: An elastic member capable of making the sliding insert slide along the core pulling direction is arranged between the sliding insert and the slider assembly.

5. The anti-sticking mold structure at the high position of the slider according to claim 1, characterized in that: A limiting structure is provided between the sliding insert and the slider assembly.

6. The anti-adhesion mold structure at the top of the slider according to claim 5, characterized in that: The limiting structure comprises a limiting rod arranged on the slider assembly and a limiting hole arranged on the sliding insert, and the limiting rod can move in the limiting hole.

7. The anti-mold sticking structure at the high position of the slider according to claim 5, characterized in that: The slide groove is a T-shaped groove, and the sliding insert is provided with a T-shaped block that matches the T-shaped groove.

8. The anti-sticking mold structure at the high position of the slider according to claim 1, characterized in that: The slider assembly comprises a large slider and a slider insert fixed above the large slider.

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