Sliding block mechanism for plastic mold
By setting an adjusting groove and a detachable adjusting block between the slider body and the core, the problems of demolding interference and overflow of the slider structure are solved, thereby improving the molding quality and stability of the plastic mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHUNSHENG ELECTRONICS CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
The connection position between the core and the slider body of the existing plastic mold slider structure is difficult to adjust, resulting in a high risk of demolding interference and defects such as overflow and burrs during the molding process.
An adjusting groove (such as a dovetail groove or a T-groove) is set between the slider body and the core. The core slides along the groove direction. The gap between the main sliding groove and the slider body is adjusted by a detachable adjusting block to enhance the guiding accuracy and sealing effect.
This ensures that the core detaches smoothly from the product features, reducing jamming and damage, and improving product molding quality and mold lifespan.
Smart Images
Figure CN224240252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic molds, and in particular to a slider mechanism for plastic molds. Background Technology
[0002] Currently, in the production and manufacturing of plastic molds, the slider structure is a commonly used demolding and molding mechanism, mainly used for molding lateral or complex features such as side holes, angled holes, snaps, and grooves on products. A traditional slider structure typically includes a slider body, a main sliding groove, angled guide pillars, and a core. When the mold is closed, the slider slides under the drive of the angled guide pillars, inserting the core into the product cavity to form the desired lateral feature. When the mold opens, the angled guide pillars drive the slider back, and the core detaches from the product, achieving interference-free demolding.
[0003] The common slider structure in the existing technology has the following shortcomings: the connection between the core and the slider body lacks an adjustable structure, making it difficult to adapt to different molding requirements and resulting in a high risk of demolding interference; the slider sealing structure is simple, and defects such as overflow and burrs are prone to occur during the molding process, reducing the quality of the finished product. Utility Model Content
[0004] The purpose of this invention is to provide a slider mechanism for plastic molds to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a slider mechanism for a plastic mold, comprising: a fixed mold; a movable mold disposed on the fixed mold; a cavity formed on the fixed mold; a slider body disposed on one side of the cavity; an inclined guide post fixedly disposed on the movable mold; a main sliding groove formed in the fixed mold, wherein the slider body slides laterally along the main sliding groove; a guide hole formed on the slider body and cooperating with the inclined guide post, used to drive the slider body to reciprocate during the opening and closing of the fixed mold and the movable mold; a core portion disposed at one end of the slider body, used to form an inclined hole or lateral feature on the product; and an adjusting groove disposed between the core portion and the slider body, wherein the core portion can slide along the direction of the adjusting groove to achieve interference-free separation of the core portion from the product.
[0006] Preferably, a stop is provided between the cavity and the slider body, the stop being used to seal the product when the mold is closed and the product is formed; the stop is provided with a core hole, which is used to cooperate with the core to form an oblique hole or lateral feature on the product.
[0007] Preferably, one side of the slider body is provided with an inclined surface, which cooperates with the core part, so that the core part is vertically slidably disposed on the inclined surface.
[0008] Preferably, the adjusting groove is a dovetail groove or a T-groove, used to provide stable guidance and positioning between the core and the slider body.
[0009] Preferably, detachable adjustment blocks are provided on both sides of the main sliding groove to adjust the gap between the main sliding groove and the slider body.
[0010] Preferably, the stop block is provided with an insertion port, so that the slider body can be partially embedded in the insertion port.
[0011] The beneficial effects of this utility model are:
[0012] By setting an adjusting groove (such as a dovetail groove or a T-groove) between the slider body and the core, the core can slide along the groove direction during demolding, thereby avoiding jamming or damage caused by interference and ensuring that the core can be smoothly extracted from the oblique hole or lateral feature on the product.
[0013] By setting an adjusting groove (such as a dovetail groove or a T-groove) between the slider body and the core, the core can slide along the groove direction during demolding, thereby avoiding jamming or damage caused by interference and ensuring that the core can be smoothly extracted from the oblique hole or lateral feature on the product.
[0014] Detachable adjustment blocks are added to both sides of the main sliding groove, which can effectively adjust the gap between the slider body and the main sliding groove, ensure the guiding accuracy of the slider during movement, reduce shaking, and further improve the product dimensional accuracy and molding quality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of a slider mechanism for a plastic mold according to an embodiment of the present invention;
[0017] Figure 2 This is an exploded view of the overall structure of a slider mechanism for a plastic mold according to an embodiment of the present invention;
[0018] Figure 3 This invention relates to a slider mechanism for a plastic mold. Figure 2 Schematic diagram of cross-section at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the sliding main structure of a slider mechanism for a plastic mold according to an embodiment of the present invention.
[0020] Figure 5 This is a schematic diagram of the stop structure of a slider mechanism for a plastic mold according to an embodiment of the present invention.
[0021] The components are labeled as follows: fixed mold (100), moving mold (101), cavity (102), slider body (103), inclined guide post (104), main sliding groove (105), guide hole (106), core part (107), adjusting groove (108), stop block (109), core hole (110), inclined surface (111), and adjusting block (112). Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0023] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] like Figures 1 to 5As shown in the specific embodiment of this utility model, a slider mechanism for a plastic mold includes a fixed mold 100, a movable mold 101 disposed on the fixed mold 100, a cavity 102 formed on the fixed mold 100, a slider body 103 disposed on one side of the cavity 102 of the mold, a main sliding groove 105 formed in the fixed mold 100, and the slider body 103 sliding laterally along the main sliding groove 105; a guide hole 106 is provided on the slider body 103, the guide hole 106 cooperating with the inclined guide post 104 in the movable mold 101, for driving the slider body 103 to reciprocate along the main sliding groove 105 during the opening and closing of the mold. One end of the slider body 103 is provided with a core portion 107 for forming inclined holes or lateral features on the product during the molding process. To ensure that the core 107 can be smoothly extracted from the product during demolding, an adjustment groove 108 is provided between the slider body 103 and the core 107. The core 107 can slide along the direction of the adjustment groove 108, thereby achieving interference-free separation between the core 107 and the product during demolding.
[0025] A stop 109 is provided between the cavity 102 and the slider body 103. The stop 109 is located on the side wall of the mold cavity 102, adjacent to the slider body 103. Its main function is to seal the lateral position of the product during mold closing and product molding processes, preventing molten plastic from leaking into non-molding areas during injection molding, thus ensuring the integrity and dimensional accuracy of the product. Furthermore, the stop 109 has a core hole 110, which cooperates with the core portion 107 on the slider body 103. This allows the core portion 107 to penetrate the core hole 110 and extend into the cavity 102 when the slider body 103 is in position, participating in the formation of oblique holes or lateral features on the product.
[0026] Two inclined surfaces 111 are provided on one side of the slider body 103, and the overall arrangement is relatively inclined. The two core parts 107 respectively cooperate with the corresponding inclined surfaces 111 and slide vertically along the inclination direction of their respective inclined surfaces 111. Specifically, when the mold is opened or demolded, the two core parts 107 can slide relative to each other along their respective inclined surfaces 111, thereby achieving vertical demolding adjustment based on lateral sliding, ensuring that the core parts 107 can smoothly detach from the inclined holes or lateral features on the product, avoiding interference or damage.
[0027] The adjusting groove 108, employing a dovetail or T-slot structure, is positioned between the core 107 and the slider body 103. This adjusting groove 108 provides stable guidance and precise positioning for the core 107 during sliding. The dovetail or T-slot's slot-like design not only enhances the connection strength between the core 107 and the slider body 103 but also effectively prevents wobbling or offset during sliding, ensuring that the core 107 moves smoothly along a preset trajectory during mold opening, closing, and demolding, thereby guaranteeing product molding quality and mold reliability.
[0028] Both sides of the main sliding groove 105 are equipped with detachable adjusting blocks 112. These adjusting blocks 112 are arranged opposite to the slider body 103 and are used to adjust the fit clearance between the main sliding groove 105 and the slider body 103. By replacing or fine-tuning the thickness or position of the adjusting blocks 112, the guide clearance of the slider within the main sliding groove 105 can be precisely controlled, thereby ensuring the guiding accuracy of the slider during lateral sliding, reducing wobbling, improving sliding stability, and ultimately enhancing the quality of product molding and the service life of the mold. Furthermore, the detachable design facilitates later maintenance, adjustment, and replacement, enhancing the flexibility and adaptability of the mold structure.
[0029] The stop block 109 is provided with a socket, the size of which matches part of the shape of the slider body 103. When the slider body 103 moves to the contact position with the stop block 109, part of its structure can be inserted into the socket to achieve a more stable limiting and positioning effect. Through this structural design, not only is the fitting accuracy of the slider improved during mold closing and forming processes, but misalignment or interference is also effectively prevented when the mold closes.
[0030] Working principle: When the mold is closed, the inclined guide post 104 in the moving mold 101 is inserted into the guide hole 106 on the slider body 103. As the moving mold 101 moves, it drives the slider to slide laterally along the main sliding groove 105. The slider body 103 slides laterally into one side of the cavity 102 through the main sliding groove 105, and the core part 107 at its end passes into the core hole 110 on the stop block 109, forming the inclined hole or lateral feature required by the product together with the cavity 102. The socket on the stop block 109 can accommodate part of the structure of the slider body 103, making the slider more stable in the closed mold state, with better sealing effect, and preventing glue overflow.
[0031] When the mold is opened, the inclined guide post 104 in the moving mold 101 is inserted into the guide hole 106 on the slider body 103, and as the moving mold 101 moves, it drives the slider to slide laterally along the main sliding groove 105. At the same time, the core part 107 slides relative to the slider body 103 in the adjusting groove 108, such as a dovetail groove or a T-groove, so that it can smoothly disengage from the inclined hole position of the product and avoid interference or damage caused by direct pulling.
[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A slider mechanism for plastic molds, characterized in that: It includes a fixed mold (100), a moving mold (101) disposed on the fixed mold (100), a cavity (102) opened on the fixed mold (100), and a slider body (103) disposed on one side of the cavity (102); An inclined guide post (104) is fixedly mounted on the moving mold (101); The main sliding groove (105) is formed in the fixed mold (100), and the slider body (103) slides laterally along the main sliding groove (105); A guide hole (106) is provided on the slider body (103) and cooperates with the inclined guide post (104) to drive the slider body (103) to slide back and forth during the opening and closing of the fixed mold (100) and the moving mold (101); A core portion (107) is disposed at one end of the slider body (103) for forming oblique holes or lateral features on the product; An adjustment groove (108) is provided between the core part (107) and the slider body (103). The core part (107) can slide along the direction of the adjustment groove (108) to achieve interference-free separation of the core part (107) from the product.
2. The slider mechanism for plastic molds according to claim 1, characterized in that, A stop (109) is provided between the cavity (102) and the slider body (103). The stop (109) is used to seal the product when the moving mold (101) and the fixed mold (100) are closed and the product is formed. The stop (109) is provided with a core hole (110) for cooperating with the core part (107) to pass through and form an oblique hole or lateral feature on the product.
3. The slider mechanism for plastic molds according to claim 1, characterized in that, The slider body (103) has an inclined surface (111) on one side. The inclined surface (111) cooperates with the core part (107) so that the core part (107) is vertically slidably disposed on the inclined surface (111).
4. The slider mechanism for plastic molds according to claim 1, characterized in that, The adjusting groove (108) is a dovetail groove or a T-groove, used to provide stable guidance and positioning between the core part (107) and the slider body (103).
5. The slider mechanism for plastic molds according to claim 1, characterized in that, The main sliding groove (105) is also provided with detachable adjustment blocks (112) on both sides for adjusting the gap between the main sliding groove (105) and the slider body (103).
6. The slider mechanism for plastic molds according to claim 2, characterized in that, The stop block (109) is provided with an insertion port, so that the slider body (103) can be partially embedded in the insertion port.