A linkage core-pulling mechanism for driving longitudinal core pulling by transverse motion of a mold

Abstract

The utility model discloses a linkage core-pulling mechanism of transverse motion drive longitudinal core-pulling for mould, it includes the upper die and the fixed mould of being connected, the upper die lower extreme is equipped with the block, and the fixed mould inner chamber is equipped with linkage assembly, and the linkage assembly includes the left and right slideable row position, and the row position is connected with the block, and the slideable elastic plate of up and down, and the elastic plate is connected with the row position, and the core-pulling of inside is connected in the elastic plate lower extreme. The utility model opens the mould, and the upper die moves upward, and the block fixed on the upper die goes up along with it, and because the extrusion of the block to the row position, the upward movement is converted into the horizontal thrust to the row position, forces the row position to slide sideways, and the row position promotes the elastic plate to move upward, and then drives the core-pulling of inside connected with the elastic plate synchronous rising, thereby realizes the accurate core-pulling to the inside reverse buckle structure of plastic part. With this, the core-pulling difficult problem of deep cavity type plastic part is solved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a linkage core-pulling mechanism for driving longitudinal core pulling with lateral motion in molds. Background Technology

[0002] In the field of mold manufacturing, such as injection molding and die casting, plastic parts or castings often have complex structures such as lateral grooves, undercuts, or internal bosses. Due to space constraints and being surrounded by external structures, these internal features cannot be demolded using conventional lateral core-pulling mechanisms; therefore, special internal core-pulling mechanisms are required. While traditional angled ejector mechanisms can achieve a certain degree of internal demolding, their movement trajectory is singular, only able to move obliquely at a fixed angle, making it difficult to meet the needs of multi-directional undercuts or long-distance lateral core-pulling in deep cavities. Although hydraulic or pneumatic internal core-pulling can provide directional linear motion, its placement within the confined space of the mold is difficult, and the sealing and guiding issues of the piston rod can easily lead to insufficient stability. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To address the aforementioned problems, this utility model provides the following technical solution: A linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion of a mold includes an upper mold and a fixed mold connected to each other. The lower end of the upper mold is provided with a paddle block, and the inner cavity of the fixed mold is provided with a linkage component. The linkage component includes a slide that can slide left and right and is connected to the paddle block, a spring plate that can slide up and down and is connected to the slide, and an inner core-pulling mechanism connected to the lower end of the spring plate.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in the mold of this utility model, wherein: an opening is provided on the slide for the push block to pass through, and one end of the push block passing through the opening has a bent portion.

[0007] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in the mold of this utility model, wherein: the lower end of the spring plate is provided with a moving groove, and one side of the upper end of the slide is provided with a protrusion extending into the moving groove.

[0008] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in the mold of this utility model, wherein: the moving groove is provided with a margin space for the protrusion to move.

[0009] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in the mold of this utility model, wherein: the corresponding sidewalls of the protrusion and the moving groove are provided with a matching inclined surface structure to adapt to the movement trajectory of the protrusion.

[0010] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in the mold of this utility model, the opening is inclined, and the upper and lower opposite sides of the opening are respectively provided with a horizontal guide surface adapted to the push block.

[0011] As a preferred embodiment of the linkage core-pulling mechanism for driving longitudinal core-pulling with transverse motion in the mold of this utility model, wherein the side profile of the bent part is parallel to the inner wall profile of the opening.

[0012] The beneficial effects of this invention are as follows: When the mold opens, the upper mold moves upward, and the pry block fixed on the upper mold moves upward accordingly. Due to the pressure of the pry block on the slide, the upward movement is converted into a horizontal pushing force on the slide, forcing the slide to slide laterally. The slide pushes the spring plate upward, which in turn drives the inner core puller connected to the spring plate to rise synchronously, thereby achieving precise core pulling of the undercut structure inside the plastic part. This solves the problem of difficult inner core pulling of deep cavity plastic parts. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a perspective view of the entire embodiment.

[0014] Figure 2 This is a diagram showing the cross-section of this embodiment.

[0015] Figure 3 This is a partial view of the cross-section in this embodiment.

[0016] In the figure: upper mold 100, push block 101, bending part 101-1, fixed mold 200, linkage component 300, slide 301, opening 301-1, protrusion 301-2, horizontal guide surface 301-11, spring plate 302, moving groove 302-1, allowance space 302-2, core pulling 303. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Example Reference Figures 1 to 3 This embodiment of the present invention provides a linkage core-pulling mechanism for driving longitudinal core pulling with lateral movement of a mold, including an upper mold 100 and a fixed mold 200 connected to each other. The lower end of the upper mold 100 is provided with a pry block 101, and the inner cavity of the fixed mold 200 is provided with a linkage component 300. The linkage component 300 includes a sliding position 301 that can slide left and right and is connected to the pry block 101, a sliding spring plate 302 that can slide up and down and is connected to the sliding position 301, and an inner core-pulling 303 connected to the lower end of the spring plate 302. When the mold opens, the upper mold 100 moves upward. At the same time, the lever 101 fixed on the upper mold moves upward as well. Due to the pressure of the lever 101 on the slide 301, the upward movement is converted into a horizontal pushing force on the slide 301, forcing the slide 301 to slide laterally. The slide 301 pushes the spring plate 302 upward, which in turn drives the inner core puller 303 connected to the spring plate 302 to rise synchronously, thereby achieving precise core pulling of the undercut structure inside the plastic part. This solves the problem of difficult inner core pulling of deep cavity plastic parts.

[0021] The slide 301 has an opening 301-1 for the paddle block 101 to pass through, and the end of the paddle block 101 passing through the opening 301-1 has a bent portion 101-1. The opening of the bent portion 101-1 allows the paddle block 101 to move upward, and through its engagement with the inclined surface of the slide 301, the upward movement is converted into a horizontal thrust on the slide 301, forcing the slide 301 to slide laterally, thereby lifting the spring plate 302 so that the inner core puller 303 can pull the core.

[0022] The lower end of the spring plate 302 is provided with a moving groove 302-1, and the upper side of the slide position 301 is provided with a protrusion 301-2 extending into the moving groove 302-1. Since the protrusion 301-2 is embedded in the moving groove 302-1 of the spring plate 302, when the slide position 301 moves laterally, the protrusion 301-2 will exert a squeezing effect on the inner wall of the moving groove 302-1, so that the spring plate 302 obtains an additional upward driving force, causing the spring plate 302 to move upward under the driving force.

[0023] The moving groove 302-1 is provided with a space 302-2 for the protrusion 301-2 to move. The space 302-2 provides a certain stroke for the protrusion 301-2, so that in the initial stage of the lateral movement of the slide 301, the protrusion 301-2 can move freely in the space 302-2, avoiding premature rigid interference and ensuring that the slide 301 can slide smoothly into place; after the slide 301 moves to a certain position, the protrusion 301-2 contacts the side wall of the moving groove 302-1, forming an auxiliary thrust, which further enhances the upward power of the spring plate 302.

[0024] The corresponding sidewalls of the protrusion 301-2 and the moving groove 302-1 are provided with matching inclined structures to accommodate the movement trajectory of the protrusion 301-2.

[0025] The opening 301-1 is inclined, and the upper and lower sides of the opening 301-1 are respectively provided with a horizontal guide surface 301-11 adapted to the toggle block 101.

[0026] The side profile of the bent part 101-1 is parallel to the inner wall profile of the opening 301-1.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion of a mold, comprising an upper mold (100) and a fixed mold (200) connected to each other, characterized in that: The upper mold (100) is provided with a pry block (101) at its lower end, and the fixed mold (200) is provided with a linkage component (300) in its inner cavity. The linkage component (300) includes a slide (301) that can slide left and right, and the slide (301) is connected to the pry block (101), a spring plate (302) that can slide up and down, and the spring plate (302) is connected to the slide (301), and an inner core puller (303) connected to the lower end of the spring plate (302).

2. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in molds as described in claim 1, characterized in that: The row position (301) has an opening (301-1) for the paddle block (101) to pass through, and the end of the paddle block (101) that passes through the opening (301-1) has a bent portion (101-1).

3. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in molds as described in claim 1, characterized in that: The lower end of the spring plate (302) is provided with a moving groove (302-1), and the upper side of the slide (301) is provided with a protrusion (301-2) extending into the moving groove (302-1).

4. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in molds as described in claim 3, characterized in that: The movable groove (302-1) is provided with a spare space (302-2) for the protrusion (301-2) to move.

5. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in a mold as described in claim 3, characterized in that: The corresponding sidewalls of the protrusion (301-2) and the moving groove (302-1) are provided with matching inclined structures to accommodate the movement trajectory of the protrusion (301-2).

6. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in a mold as described in claim 2, characterized in that: The opening (301-1) is inclined, and the upper and lower opposite sides of the opening (301-1) are respectively provided with a horizontal guide surface (301-11) adapted to the toggle block (101).

7. The linkage core-pulling mechanism for driving longitudinal core pulling with transverse motion in a mold as described in claim 6, characterized in that: The side profile of the bent portion (101-1) is parallel to the inner wall profile of the opening (301-1).

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