Straight-ejection and inclined-ejection linkage type injection mold

Abstract

The utility model provides a straight-ejection and inclined-ejection linkage type injection mold which comprises a movable mold, a straight-ejection piece and two inclined-ejection pieces, the straight-ejection piece is installed in the movable mold in a penetrating mode in the vertical direction, the inclined-ejection pieces are installed in the movable mold in a penetrating mode in the inclined direction, and the straight-ejection piece can slide in the vertical direction relative to the movable mold. The two inclined ejection pieces symmetrically abut against the two sides of the straight ejection piece; the inclined ejection piece and the straight ejection piece are connected through a linkage mechanism, the linkage mechanism comprises linear driving grooves symmetrically formed in the two sides of the straight ejection piece, driving blocks matched with the linear driving grooves are arranged at the end, facing the straight ejection piece, of the inclined ejection piece, and the driving blocks are arranged in the linear driving grooves; the straight ejection and inclined ejection linkage type injection mold overcomes the defects that an existing injection mold is complex in structure and high in mold cost.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a straight-top and inclined-top linkage injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. The injection mold mainly includes a fixed mold and a movable mold. The fixed mold is installed on the fixed base plate of the injection molding machine, and the movable mold is installed on the movable base plate of the injection molding machine. During injection molding, the fixed and movable molds are closed, and the plastic enters the mold cavity through the nozzle. When opening the mold, the fixed and movable molds are separated, and then the ejector mechanism is activated to eject the injection molded part.

[0003] Generally, when a product has an undercut structure, an inclined top is required to assist in molding. In the prior art, the inclined top and the straight top drive demoulding separately, resulting in a complex overall structure and high mold cost. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a straight-top and inclined-top linkage injection mold to overcome the defects of the existing injection molds with complex structures and high mold costs.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a straight-top and inclined-top linkage injection mold, comprising a movable mold, a straight top piece installed in the movable mold along a vertical direction, and two inclined top pieces installed in the movable mold along an inclined direction, the straight top piece can slide in the vertical direction relative to the movable mold, and the two inclined top pieces are symmetrically abutted on both sides of the straight top piece; the inclined top piece and the straight top piece are connected by a linkage mechanism, and the linkage mechanism includes linear drive grooves symmetrically arranged on both sides of the straight top piece, and a drive block matching the linear drive groove is arranged at one end of the inclined top piece facing the straight top piece, and the drive block is placed in the linear drive groove; when demolding, the straight top piece moves upward, and through the cooperation between the linear drive groove and the drive block, the inclined top piece is driven to move obliquely upward to disengage from the product undercut.

[0008] In some embodiments, the straight ejector includes a first molding insert, and the linear driving grooves are symmetrically arranged on both sides of the first molding insert. The inclined ejector includes a second molding insert, and the driving block is arranged at the side end of the second molding insert. A cavity is arranged in the movable mold, and the first molding insert and the second molding insert are both placed in the cavity and cooperate with the cavity to form a product.

[0009] In some embodiments, a vertical push rod is integrally formed at the lower end of the first molding insert, a guide block is fixed to the lower end of the movable mold, a guide hole is provided in the guide block, the vertical push rod is inserted into the guide hole, and a vertical hole for the vertical push rod to move is provided in the movable mold.

[0010] In some embodiments, a vertically slidable ejector plate assembly is installed at the bottom of the movable mold, and the lower end of the vertical ejector rod is fixedly connected to the ejector plate assembly; when demolding, the ejector plate assembly drives the straight ejector to move upward. The ejector plate assembly includes a stacked ejector panel and an ejector bottom plate, the ejector panel and the ejector bottom plate are fixed to each other, and the vertical ejector rod is fixed to the ejector panel.

[0011] In some embodiments, an oblique guide rod is integrally formed at the lower end of the second molding insert, and an oblique hole for the oblique guide rod to move is provided in the movable mold.

[0012] In some embodiments, a bottom plate is installed at the bottom of the movable mold, the bottom plate is fixedly connected to the movable mold through a plurality of square irons, and the ejector plate assembly is slidably installed between the bottom plate and the movable mold.

[0013] (III) Beneficial effects

[0014] The utility model provides a straight-top and inclined-top linkage injection mold, in which a straight top piece and an inclined top piece are connected by a linkage mechanism. During demoulding, the ejector plate assembly drives the straight top piece to move upward, and with the cooperation of a linear drive groove and a drive block, the straight top piece drives the inclined top piece to move obliquely upward to disengage from the product undercut. The utility model can realize the linkage between the straight top and the inclined top, and is convenient for demoulding. The overall structure is simple, the inclined top space is effectively compressed, and the mold cost is reduced. The defects of the existing injection mold with complex structure and high mold cost are overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional diagram of a straight-top and inclined-top linkage injection mold of the utility model;

[0017] Figure 2 This is a cross-sectional view of a straight-top and inclined-top linkage injection mold of the utility model;

[0018] Figure 3It is a three-dimensional diagram of the connection between the straight top piece and the inclined top piece of a straight top and inclined top linkage injection mold of the utility model;

[0019] Figure 4 It is a stereoscopic diagram of another angle of view of the connection between the straight ejector and the inclined ejector of a straight ejector and inclined ejector linkage type injection mold of the utility model;

[0020] Figure 5 It is an exploded view of a straight top and a slanted top linkage type injection mold of the utility model;

[0021] Figure 6 It is a three-dimensional diagram of a straight top and inclined top linkage type injection mold straight top piece of the utility model;

[0022] Figure 7 It is a three-dimensional diagram of a straight-roof and inclined-roof linkage type injection mold inclined ejector of the utility model;

[0023] The names of the components corresponding to the various figure marks in the figure are: 1. movable mold; 101. cavity; 2. straight ejector; 21. first molding insert; 22. vertical ejector rod; 201. linear drive groove; 3. inclined ejector; 31. second molding insert; 32. inclined guide rod; 301. drive block; 4. guide block; 5. ejector plate assembly; 51. ejector panel; 52. ejector bottom plate; 6. bottom plate; 7. square iron. DETAILED DESCRIPTION

[0024] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0029] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0030] See also Figures 1 to 7 The utility model provides a straight-top and inclined-top linkage injection mold, comprising a movable mold 1, a straight top piece 2 installed in the movable mold 1 along a vertical direction, and two inclined top pieces 3 installed in the movable mold 1 along an inclined direction, the straight top piece 2 can slide in the vertical direction relative to the movable mold 1, and the two inclined top pieces 3 are symmetrically abutted on both sides of the straight top piece 2; the inclined top piece 3 and the straight top piece 2 are connected by a linkage mechanism, and the linkage mechanism includes linear drive grooves 201 symmetrically arranged on both sides of the straight top piece 2, and a drive block 301 matching the linear drive groove 201 is arranged at one end of the inclined top piece 3 facing the straight top piece 2, and the drive block 301 is placed in the linear drive groove 201; when demolding, the straight top piece 2 moves upward, and through the cooperation between the linear drive groove 201 and the drive block 301, the inclined top piece 3 is driven to move obliquely upward to break away from the product undercut.

[0031] In some embodiments, Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the straight ejector 2 includes a first molding insert 21, and the linear driving grooves 201 are symmetrically arranged on both sides of the first molding insert 21. The inclined ejector 3 includes a second molding insert 31, and the driving block 301 is arranged at the side end of the second molding insert 31. A cavity 101 is arranged in the movable mold 1, and the first molding insert 21 and the second molding insert 31 are both placed in the cavity 101. The first molding insert 21, the second molding insert 31 and the cavity 101 cooperate to form a product.

[0032] In some embodiments, Figure 2 , Figure 3 and Figure 5 As shown, a vertical push rod 22 is integrally formed at the lower end of the first molding insert 21, a guide block 4 is fixed at the lower end of the movable mold 1, a guide hole is provided in the guide block 4, the vertical push rod 22 is inserted into the guide hole, and a vertical hole for the vertical push rod 22 to move is provided in the movable mold 1. The guide block 4 is added to guide the straight push piece 2, so that its movement direction is more accurate.

[0033] In some embodiments, Figure 1 and Figure 2 As shown, a vertically slidable ejector plate assembly 5 is installed at the bottom of the movable mold 1, and the lower end of the vertical ejector rod 22 is fixedly connected to the ejector plate assembly 5; when demoulding, the ejector plate assembly 5 drives the straight ejector 2 to move upward. The ejector plate assembly 5 includes a stacked ejector panel 51 and an ejector bottom plate 52, the ejector panel 51 and the ejector bottom plate 52 are fixed to each other, and the vertical ejector rod 22 is fixed to the ejector panel 51 by screws.

[0034] In some embodiments, Figure 7 As shown, an oblique guide rod 32 is integrally formed at the lower end of the second molding insert 31 , and an oblique hole for the oblique guide rod 32 to move is provided in the movable mold 1 .

[0035] In some embodiments, Figure 1 and Figure 2 As shown, a bottom plate 6 is installed at the bottom of the movable mold 1, and the bottom plate 6 is fixedly connected to the movable mold 1 through a plurality of square irons 7, and the ejector plate assembly 5 is slidably installed between the bottom plate 6 and the movable mold 1.

[0036] In the straight-top and inclined-top linkage injection mold, during demolding, the ejector panel 51 and the ejector bottom plate 52 are driven upward by an external injection molding machine, and the ejector panel 51 drives the straight ejector 2 to be ejected upward. With the cooperation of the linear drive groove 201 and the drive block 301, the straight ejector 2 drives the inclined ejector 3 to move obliquely upward to disengage from the product undercut.

[0037] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0038] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A straight top and inclined top linkage injection mold, characterized in that: The invention comprises a movable mold (1), a straight ejector (2) installed in the movable mold (1) along a vertical direction, and two inclined ejectors (3) installed in the movable mold (1) along an oblique direction, wherein the straight ejector (2) can slide in the vertical direction relative to the movable mold (1), and the two inclined ejectors (3) are symmetrically placed on both sides of the straight ejector (2); the inclined ejector (3) and the straight ejector (2) are connected via a linkage mechanism, wherein the linkage mechanism comprises linear drive grooves (201) symmetrically arranged on both sides of the straight ejector (2); a drive block (301) matched with the linear drive groove (201) is arranged at one end of the inclined ejector (3) facing the straight ejector (2), and the drive block (301) is placed in the linear drive groove (201); when demoulding, the straight ejector (2) moves upward, and through the cooperation between the linear drive groove (201) and the drive block (301), the inclined ejector (3) is driven to move obliquely upward to disengage from the product undercut.

2. The straight-top and inclined-top linkage injection mold according to claim 1, characterized in that: The straight top piece (2) comprises a first molding insert (21), and the linear driving grooves (201) are symmetrically arranged on both sides of the first molding insert (21).

3. The straight-top and inclined-top linkage injection mold according to claim 2, characterized in that: The inclined ejector (3) comprises a second molding insert (31), and the driving block (301) is arranged at a side end of the second molding insert (31).

4. The straight-top and inclined-top linkage injection mold according to claim 3, characterized in that: A cavity (101) is provided in the movable mold (1), and the first molding insert (21) and the second molding insert (31) are both placed in the cavity (101) and cooperate with the cavity (101) to mold a product.

5. The straight-top and inclined-top linkage injection mold according to claim 2, characterized in that: A vertical push rod (22) is integrally formed at the lower end of the first molding insert (21); a guide block (4) is fixed to the lower end of the movable mold (1); a guide hole is provided in the guide block (4); the vertical push rod (22) is inserted into the guide hole; and a vertical hole is provided in the movable mold (1) for the vertical push rod (22) to move.

6. The straight-top and inclined-top linkage injection mold according to claim 5, characterized in that: A vertically slidable ejector plate assembly (5) is installed at the bottom of the movable mold (1), and the lower end of the vertical ejector rod (22) is fixedly connected to the ejector plate assembly (5); when demoulding, the ejector plate assembly (5) drives the straight ejector (2) to move upward.

7. The straight-top and inclined-top linkage injection mold according to claim 6, characterized in that: The ejector plate assembly (5) comprises a stacked ejector panel (51) and an ejector bottom plate (52); the ejector panel (51) and the ejector bottom plate (52) are fixed to each other, and the vertical ejector rod (22) is fixed to the ejector panel (51).

8. The straight-top and inclined-top linkage injection mold according to claim 3, characterized in that: An oblique guide rod (32) is integrally formed at the lower end of the second molding insert (31), and an oblique hole for the oblique guide rod (32) to move is provided in the movable mold (1).

9. The straight-top and inclined-top linkage injection mold according to claim 6, characterized in that: A bottom plate (6) is installed at the bottom of the movable mold (1); the bottom plate (6) is fixedly connected to the movable mold (1) via a plurality of square irons (7); and the ejector plate assembly (5) is slidably installed between the bottom plate (6) and the movable mold (1).

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