Sliding block mechanism and injection mold
By introducing delay limit fit and elastic parts into the slider mechanism, the problem of steel sheet offset during the mold closing process is solved, and the slider is stable mold closing and opening, which improves the reliability of injection molding.
Patent Information
- Application Number
- CN202422624425.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-29
AI Technical Summary
During the injection molding process, the side-sliding slider is likely to cause the steel sheet to shift when the steel sheet is not fixed by the front and rear molds. It is difficult for the prior art to effectively avoid the problem of shoveling steel sheets caused by the slider being closed first.
A slider mechanism is designed, by setting a delay limit fitting and elastic members on the slider, so that the slider is closed for a distance before closing the mold before limiting the slider. The first elastic member is used to keep the slider fixed to avoid closing the slider first, and combining the oblique guide fitting structure to achieve stable mold closing and opening of the slider.
It effectively avoids the steel sheet offset problem caused by the slider being closed first, ensures that the slider remains fixed during the mold clamping process, and improves the stability and smoothness of product forming.
Smart Images
Figure CN223290234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to a slider mechanism and an injection mold. Background Art
[0002] Injection molding is a processing method used in the mass production of certain parts. When preparing products with holes or grooves on the side, it is necessary to set a molding slider laterally to form the holes or grooves on the side of the product. This requires the installation of a laterally movable slider mechanism. In addition, in the injection molding of some products (such as mobile phone front shells), it is necessary to place a steel sheet in the mold beforehand for molding. During the manufacturing process, it was found that if the laterally sliding slider is moved forward to close the mold without the steel sheet being fixed by the front and rear molds, it is easy to scrape the steel sheet and cause it to shift. Therefore, it is necessary to design a mechanism that can delay the slider closing the mold. Utility Model Content
[0003] Therefore, in order to solve the above problems, the present invention provides a slider mechanism and an injection mold.
[0004] To achieve the above purpose, the technical solutions provided by the present invention are as follows:
[0005] A slider mechanism includes a slide seat and a slider, wherein the slide seat is arranged on one side of the slider and forms a delayed limit fit with the slider so that the slide seat forms a limit with the slider only after moving a certain distance relative to the slider; and further includes a first elastic member, which is assembled on the side of the slider away from the slide seat, and when the slider is in the mold opening position, the slider is kept fixed by the first elastic member against the mold body.
[0006] Furthermore, a mounting blind hole is provided on the slider, and the first elastic member is a spring and is assembled in the mounting blind hole of the slider.
[0007] Furthermore, there are a plurality of first elastic members, which are spaced apart along the length direction of the slider.
[0008] Furthermore, a limiting groove is provided on the slider, and a protrusion with a size smaller than the limiting groove is provided on the slide. The protrusion fits in the limiting groove to achieve delayed limiting fit between the slide and the slider. The movable range of the protrusion in the limiting groove is the moving range of the slide relative to the slider.
[0009] Furthermore, it also includes an elastic limit buckle, which is engaged with the slider when the slider is in the mold closing position to maintain the slider; the elastic limit buckle also forms a guiding fit with the slide, and when the slide slides from the mold closing position toward the mold opening direction until it forms a limit with the slider, the elastic limit buckle is driven to disengage from the slider.
[0010] Furthermore, a slot is provided at the bottom of the slider, and the elastic limit buckle is inserted into the slot of the slider to restrict the slider; the slide seat and the elastic limit buckle form an oblique guide fit, and when the slide seat moves away from the slider, the elastic limit buckle is driven out of the slot through the oblique guide fit structure.
[0011] Furthermore, the elastic limit buckle includes a limit block and a second elastic member. Under the action of the second elastic member, the limit block presses upward into the slot of the slider, thereby limiting the slider; the limit block is also provided with a first inclined surface, and the bottom of the slide seat is provided with a second inclined surface adapted to the first inclined surface. When the slide seat is in contact with the slider, the second inclined surface of the slide seat cooperates with the first inclined surface of the limit block and then forms an oblique guide with the elastic limit buckle.
[0012] Furthermore, a receiving hole is provided at the bottom of the limiting block, and the second elastic member is assembled in the receiving hole of the limiting block.
[0013] An injection mold comprises at least the slider mechanism described above.
[0014] The technical solution provided by the utility model has the following beneficial effects:
[0015] When the slider is in the mold-opening position, it is held in place by the first elastic member against the mold body. Simultaneously, the slide and slider form a delayed limiter. When the mold is closed, the slide closes the mold a certain distance before engaging the slider. During this process, the slider remains firmly in place under the action of the first elastic member, effectively preventing the slider from closing the mold early and causing scraping of steel. Continued movement of the slide then drives the slider to overcome the elastic force of the first elastic member and close the mold until it is in place. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 Shown is a three-dimensional schematic diagram of the slider mechanism in the embodiment;
[0017] Figure 2 Shown is a bottom view of the slider mechanism in the embodiment;
[0018] Figure 3 The figure shows a schematic diagram of the structural decomposition of the slider mechanism in the embodiment;
[0019] Figure 4 Shown Figure 2 Cross-sectional view along line AA;
[0020] Figure 5 Shown Figure 2 Cross-sectional view along the midline BB;
[0021] Figure 6Shown is a cross-sectional view of the slider mechanism in another state in the embodiment. DETAILED DESCRIPTION
[0022] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.
[0023] In the description of the present invention, terms such as "up", "down", "left", "right", "front", and "back" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.
[0024] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.
[0025] Reference Figures 1 to 6 As shown, a slider mechanism provided in this embodiment includes a slide 20 and a slider 10. The slide 20 is arranged on one side of the slider 10 and forms a delayed limit fit with the slider 10, so that the slide 20 forms a limit with the slider 10 only after moving a certain distance relative to the slider; the slide 20 drives the slider 10 to close or open the mold, as shown in FIG. Figures 4 to 6 As shown, movement toward the left is the mold closing direction, and movement toward the right is the mold opening direction. The slide seat 20 is arranged on the right side of the slider 10.
[0026] Specifically, the slider 10 is provided with a limit groove 11, and the slide 20 is provided with a protrusion 21 whose size is smaller than the limit groove 11. The protrusion 21 is matched in the limit groove 11 to realize the delayed limit cooperation between the slide 20 and the slider 10. The movable range of the protrusion 21 in the limit groove 11 is the movable range of the slide 20 relative to the slider 10. In this way, the delayed limit cooperation between the slide 20 and the slider 10 is realized; when the slider 10 and the slide 20 are both in the mold closing position (such as Figure 4 combine Figure 5 As shown), the left side wall of the protrusion 22 fits with the left wall of the limiting groove 12. When the mold is opened, the slide 20 moves to the right first, and the protrusion 22 moves to the right in the limiting groove 12 until the protrusion 22 abuts against the right side wall of the limiting groove 12, thereby limiting the slide 20 and the slider 10. Figure 6 As shown, after that, the continued rightward movement of the slide 20 will drive the slider 10 to move synchronously. Such arrangement has a simple structure and is easy to implement.
[0027] Furthermore, a first elastic member 30 is included. The first elastic member 30 is assembled on the side of the slider 10 facing away from the slide 20 (i.e., the left side). When the slider 10 is in the mold-opening position, the slider is pressed against the mold body by the first elastic member 30 and remains fixed. In this way, when the mold is closed, the slide 20 closes the mold for a distance before limiting the position with the slider 10. During this process, the slider 10 can be well fixed under the action of the first elastic member 30, which can effectively avoid the problem of scraping steel pieces caused by the slider 10 closing the mold first. The continued movement of the slide 20 will then drive the slider 10 to overcome the elastic force of the first elastic member 30 and close the mold until the mold is closed.
[0028] Specifically, the mold opening position in this embodiment refers to the position of the component when the mold is fully opened, and the mold closing position refers to the position of the component when the mold is fully closed. For example, the mold closing position of the slider 10 is the position of the slider 10 when the mold is fully closed, the mold opening position of the slider 10 is the position of the slider 10 when the mold is fully opened, and so on. Figure 4 and Figure 5 As shown, the slider 10 and the slide 20 are both in the mold closing position; Figure 6 It is shown that the slider 10 is still in the mold closing position, and the slide 20 is in a position between the mold closing position and the mold opening position.
[0029] There are multiple first elastic members 30 , two in this embodiment, which are spaced apart along the length direction of the slider 10 . This arrangement makes the acting force more uniform, thus preventing the slider 10 from deflecting.
[0030] The slider 10 is provided with a mounting blind hole 12 . The first elastic member 30 is a spring and is assembled in the mounting blind hole 12 of the slider 10 , thereby achieving stable assembly of the first elastic member 30 .
[0031] Of course, in other embodiments, the number of the first elastic members 30 may be one or more than two; the first elastic member 30 may also be replaced by a “V”-shaped spring piece, etc.
[0032] Furthermore, it also includes an elastic limit buckle 40, such as Figure 4 and Figure 5 As shown, when the slider 10 is in the mold closing position, the elastic limit buckle 40 is engaged with the slider 10 to hold the slider 10; the elastic limit buckle 40 also forms a guide fit with the slide 20, and when the slide 20 slides from the mold closing position toward the mold opening direction to form a limit with the slider 10, as shown in FIG. Figure 6As shown, the elastic limit buckle 40 is driven to disengage from the slider 10, thereby releasing the restriction on the slider 10; the slider 10 realizes mold opening under the pulling force of the slide 20 and the thrust of the first elastic member 30. This prevents the slider 10 from opening the mold in advance due to other factors (such as the thrust of the first elastic member 30 and other external forces). This mold opening action is very suitable for a structure in which the slide 20 pulls the core first, that is, a core shaft can be set on the slide 20, and the core shaft passes through the slider 10 into the molding cavity of the mold to participate in the molding of the product; when opening the mold, since the slide 20 opens the mold first, the core shaft pulls the core first, and the product demolding is smoother.
[0033] Further preferably, a slot 13 is provided at the bottom of the slider 10, and the elastic limit buckle 40 includes a limit block 41 and a second elastic member 42. The limit block 41 is pressed upward into the slot 13 of the slider 10 under the action of the second elastic member 42, thereby limiting the slider 10 and achieving a simple and stable fit. The slider 20 and the elastic limit buckle 40 form an oblique guide fit; the specific structure of the oblique guide fit is as follows: the limit block 41 is also provided with a first inclined surface 411, and the bottom of the slider 20 is provided with a second inclined surface 22 adapted to the first inclined surface 411. When the slider 20 and the slider 10 are in contact (i.e., when both are in the mold-clamping position), the second inclined surface 22 of the slider 20 fits on the first inclined surface 411 of the limit block 41 and thus forms an oblique guide fit with the elastic limit buckle 40. When the slide 20 moves to the right, the first inclined surface 411 and the second inclined surface 22 guide the limit block 41 to overcome the elastic force of the second elastic member 42 and move downward, so that the limit block 41 disengages from the slot 13 of the slider to achieve unlocking; such a setting has a simple structural design, stable operation and is easy to implement.
[0034] The bottom of the stopper 41 is provided with a receiving hole 412. The second elastic member 42, also a spring, is assembled within the receiving hole 412 of the stopper 41, ensuring stable assembly of the second elastic member 42. The elastic stopper 40 is mounted on the mold body and is fixed in position, preventing left-right movement.
[0035] The above discloses one of the more preferred solutions in this embodiment. Of course, in other embodiments, other methods can also be used. For example, in the delayed limit cooperation formed by the slide 20 and the slider 10, the positions of the limit groove 11 and the protrusion 21 can be interchanged, or other delayed limit cooperation structures can be used; for example, the structure of the elastic limit buckle 40 can also be omitted, and so on.
[0036] This embodiment also provides an injection mold, which at least includes the slider mechanism described above.
[0037] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.
Claims
1. A slider mechanism, comprising a slide seat and a slider, characterized in that: The slide is arranged on one side of the slider and forms a delayed limit fit with the slider, so that the slide forms a limit with the slider only after moving a certain distance relative to the slider; it also includes a first elastic member, which is assembled on the side of the slider away from the slide, and when the slider is in the mold opening position, the slider is kept fixed by the first elastic member against the mold body.
2. The slider mechanism according to claim 1, wherein: A mounting blind hole is provided on the slider, and the first elastic member is a spring and is assembled in the mounting blind hole of the slider.
3. The slider mechanism according to claim 1 or 2, characterized in that: There are a plurality of first elastic members, which are spaced apart along the length direction of the slider.
4. The slider mechanism according to claim 1, wherein: A limiting groove is provided on the slider, and a protrusion with a size smaller than the limiting groove is provided on the slide. The protrusion fits in the limiting groove to realize delayed limiting fit between the slide and the slider. The movable range of the protrusion in the limiting groove is the moving range of the slide relative to the slider.
5. The slider mechanism according to claim 1, wherein: It also includes an elastic limiting buckle, which is engaged with the slider when the slider is in the mold closing position to maintain the slider; the elastic limiting buckle also forms a guiding fit with the slide, and when the slide slides from the mold closing position toward the mold opening direction until it forms a limit with the slider, the elastic limiting buckle is driven to disengage from the slider.
6. The slider mechanism according to claim 5, characterized in that: A slot is provided at the bottom of the slider, and the elastic limiting buckle is inserted into the slot of the slider to limit the slider; the slide seat and the elastic limiting buckle form an oblique guide fit, and when the slide seat moves away from the slider, the elastic limiting buckle is driven out of the slot through the oblique guide fit structure.
7. The slider mechanism according to claim 6, wherein: The elastic limit buckle includes a limit block and a second elastic member. Under the action of the second elastic member, the limit block presses upward into the slot of the slider, thereby limiting the slider; the limit block is also provided with a first inclined surface, and the bottom of the slide seat is provided with a second inclined surface adapted to the first inclined surface. When the slide seat is in contact with the slider, the second inclined surface of the slide seat cooperates with the first inclined surface of the limit block and then forms an oblique guide with the elastic limit buckle.
8. The slider mechanism according to claim 7, wherein: A receiving hole is provided at the bottom of the limiting block, and the second elastic member is assembled in the receiving hole of the limiting block.
9. An injection mold, characterized in that: At least comprising the slider mechanism described in any one of claims 1 to 8.