Terminal positioning mechanism for injection mold

Abstract

The utility model relates to a terminal positioning mechanism for an injection mold, which comprises a module provided with a cavity and a positioning column, the positioning column is driven by a driving mechanism to move up and down relative to the module, the module is provided with a through hole for the positioning column to pass through, and the upper end of the positioning column is used for positioning a terminal when passing through the through hole and extending into the cavity; the driving mechanism comprises a power part, a first sliding block and a second sliding block; the first sliding block can move in the transverse direction, and the second sliding block can move in the vertical direction. The first sliding block and the second sliding block are connected through a reversing transmission structure, and the lower end of the positioning column is fixedly connected with the first sliding block. When the first sliding block is driven by the power component to transversely move, the second sliding block is driven to vertically move through the reversing transmission structure, and then the positioning column is driven to vertically move. The terminal positioning device is reasonable in structural arrangement, can effectively position the terminal, and ensures the injection molding production quality of products.

Description

Technical Field

[0001] The utility model belongs to the field of injection mold structure design, and in particular relates to a terminal positioning mechanism for an injection mold. Background Art

[0002] Electrical connector products usually conduct the circuit by setting conductive terminals. In some electrical connectors, the conductive terminals and the plastic shell are integrally injection molded. Such electrical connectors need to position the conductive terminals in the injection mold during injection molding, and a terminal positioning mechanism for positioning the conductive terminals is set in the injection mold. In existing injection molds, the terminal positioning mechanism is to fix the positioning column in the cavity, and the positioning of the terminal is achieved by sleeve-fitting the positioning hole on the terminal with the positioning column. However, in this structure, since the positioning column is fixed, the positioning column is easy to hinder the product when demolding, which makes demolding difficult and also easily causes damage to the product during demolding. Utility Model Content

[0003] In view of the deficiencies pointed out in the background technology, the purpose of the utility model is to provide a terminal positioning mechanism for an injection mold, through which the terminal can be effectively positioned and the product can be demoulded after injection molding.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a terminal positioning mechanism for an injection mold, comprising a module provided with a cavity;

[0006] It also includes a positioning column arranged in the up-down direction, the positioning column is driven by the driving mechanism to move up and down relative to the module, the module is provided with a through hole for the positioning column to pass through, and the upper end of the positioning column is used to position the terminal when it passes through the through hole and extends into the cavity;

[0007] The driving mechanism includes a power component, a first slider and a second slider; the first slider can move in the horizontal direction, and the second slider can move in the vertical direction; the first slider is connected to the second slider through a reversing transmission structure, and the lower end of the positioning column is fixedly connected to the first slider; when the first slider is driven by the power component to move horizontally, the reversing transmission structure drives the second slider to move up and down, thereby driving the positioning column to move up and down.

[0008] In some embodiments, the reversing transmission structure includes an upper oblique push portion and a lower oblique push portion respectively arranged on the upper and lower portions of the first slider, and a transverse slide groove arranged on the second slider, the upper oblique push portion and the lower oblique push portion are staggered in the movable direction of the first slider, the first slider is arranged through the transverse slide groove, and the upper oblique push portion and the lower oblique push portion can both enter the transverse slide groove within the moving stroke of the first slider, when the first slider moves, the upper oblique push portion pushes the second slider to move upward, and the lower oblique push portion pushes the second slider to move downward.

[0009] In some embodiments, the power component is a gas cylinder or oil cylinder having a telescopic rod, and the end of the telescopic rod is connected to the first sliding block.

[0010] In some embodiments, the end of the telescopic rod is connected to a connecting block, and the end of the first sliding block is fixedly connected to the connecting block.

[0011] In some embodiments, the connection block is fixed to the first slider by fixing screws, a positioning groove is provided on the connection block, and a positioning block is provided at the corresponding end of the first slider to cooperate with the positioning groove.

[0012] In some embodiments, a first limiting block is further included. A first guide hole is provided on the first limiting block along a transverse direction. One end of the first sliding block away from the connecting block is passed through the first guide hole.

[0013] In some embodiments, a second limit block is further included, and a second guide hole is provided on the second limit block that penetrates in the up-down direction, and the second sliding block is arranged through the second guide hole.

[0014] The utility model has the positive effects: the structure of the terminal positioning mechanism in the utility model is optimized and designed, so the terminal can be effectively positioned, and no interference or damage will be caused when the product is demolded, which is beneficial to the demolding of the product; when it is installed and used, before the injection mold is closed, the positioning column is first controlled by the driving mechanism to move upward so that the upper end of the positioning column is inserted into the cavity, and then the terminal is sleeved on the upper end of the positioning column for positioning, and the terminal and the plastic part are injected as one during mold closing and injection molding. When the injection mold is opened, the driving mechanism controls the positioning column to move downward so that the upper end of the positioning column exits the cavity and separates from the product, so that the interference of the positioning column when the product is demolded can be avoided, which is beneficial to demolding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 1 This is a structural schematic diagram of a terminal positioning mechanism in the utility model;

[0017] Figure 2 for Figure 1 A front view of the terminal positioning mechanism shown;

[0018] Figure 3 This is an exploded view of the terminal positioning mechanism in the utility model.

[0019] The reference numerals shown in the figure are: 11-cavity; 1-module; 2-positioning column; 3-terminal; 4-power component; 41-telescopic rod; 5-first slider; 51-upper oblique push part; 52-lower oblique push part; 53-positioning block; 6-second slider; 61-transverse slide groove; 7-connecting block; 71-positioning groove; 72-fixing screw; 8-first limit block; 81-first guide hole; 9-second limit block; 91-second guide hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In the present utility model, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] The utility model provides a terminal positioning mechanism for use in an injection mold, the structure of which is as follows Figures 1 to 3 As shown, it includes a module 1 provided with a cavity 11 and a positioning column 2 arranged in the up and down direction, the positioning column 2 is driven by a driving mechanism to move up and down relative to the module 1, and the module 1 is provided with a through hole for the positioning column 2 to pass through, and the upper end of the positioning column 2 is used to position the terminal 3 when it passes through the through hole and extends into the cavity 11; when installed and used, before the injection mold is closed, the positioning column 2 is first controlled by the driving mechanism to move upward so that the upper end of the positioning column 2 is inserted into the cavity 11, and then the terminal 3 is sleeved on the upper end of the positioning column 2 for positioning, and the terminal 3 is injected as a whole with the plastic part during mold closing and injection molding, and when the injection mold is opened, the driving mechanism controls the positioning column 2 to move downward so that the upper end of the positioning column 2 exits the cavity 11 and separates from the product, so that the interference of the positioning column 2 when the product is demoulded can be avoided, which is conducive to demoulding.

[0024] Specifically, the driving mechanism includes a power component 4, a first slider 5 and a second slider 6; the power component 4 can be an air cylinder or an oil cylinder with a telescopic rod 41, the end of the telescopic rod 41 is connected to the first slider 5, the first slider 5 can move in the transverse direction, and when the telescopic rod 41 of the power component 4 is telescopic, it drives the first slider 5 to move in the transverse direction, and the second slider 6 is set to move in the up and down direction; the first slider 5 and the second slider 6 are connected by a reversing transmission structure, and the lower end of the positioning column 2 is fixedly connected to the first slider 5; when the first slider 5 is driven by the power component 4 to move in the transverse direction, the reversing transmission structure drives the second slider 6 to move up and down, and then drives the positioning column 2 to move up and down, so that the transverse movement of the first slider 5 is converted into the up and down movement of the second slider 6, and then drives the positioning column 2 to move up and down, and the driving direction conversion can make the installation position of the driving mechanism on the injection mold flexible, adapting to the more optimized design of the injection mold; when the above-mentioned terminal positioning mechanism is installed on the injection mold, the module 1 and the power component 4 are fixed on the template.

[0025] See also Figure 2 and Figure 3As shown, the reversing transmission structure includes an upper oblique push portion 51 and a lower oblique push portion 52 respectively arranged on the upper and lower parts of the first slider 5, and a transverse slide groove 61 arranged on the second slider 6, the upper oblique push portion 51 and the lower oblique push portion 52 are staggered in the movable direction of the first slider 5, the first slider 5 is arranged through the transverse slide groove 61, and the upper oblique push portion 51 and the lower oblique push portion 52 can enter the transverse slide groove 61 within the moving stroke of the first slider 5, when the first slider 5 moves, the upper oblique push portion 51 acts on the upper side wall of the transverse slide groove 61 to push the second slider 6 to move upward, so that the upper end of the positioning column 2 extends into the cavity 11, when the first slider 5 moves in the opposite direction, the lower oblique push portion 52 acts on the lower side wall of the transverse slide groove 61 to push the second slider 6 to move downward, so that the structure is simple and the operation is stable.

[0026] As a preferred implementation scheme, in order to facilitate the placement of the first slider 5 into the transverse slide groove 61, the transverse slide groove 61 is arranged on the side of the second slider 6 in this embodiment, and the side of the transverse slide groove 61 is open. During assembly, the corresponding part of the first slider 5 is placed into the transverse slide groove 61 from the open opening.

[0027] In a further embodiment, the end of the telescopic rod 41 is connected to a connecting block 7, and the end of the first slider 5 is fixedly connected to the connecting block 7. The connecting block 7 is provided to transitionally connect the telescopic rod 41 and the first slider 5, so that at least two first sliders 5 can be driven by the power component 4.

[0028] In some embodiments, the connecting block 7 is fixed to the first slider 5 by a fixing screw 72, a positioning groove 71 is provided on the connecting block 7, and a positioning block 53 is provided at the corresponding end of the first slider 5 for positioning and cooperating with the positioning groove 71. The matching accuracy of the connecting block 7 and the first slider 5 can be ensured by the matching of the positioning groove 71 and the positioning block 53, and the connection is further fixed by the fixing screw 72.

[0029] In some embodiments, a first limit block 8 is also included, and the first limit block 8 is fixed in the injection mold. A first guide hole 81 is provided on the first limit block 8 along the transverse direction, and one end of the first slider 5 away from the connecting block 7 is passed through the first guide hole 81; the first guide hole 81 is provided to provide a guide for the movement of the first slider 5, thereby ensuring the stability of the movement of the first slider 5.

[0030] In some embodiments, a second limit block 9 is further included. The second limit block 9 is fixed in the injection mold. A second guide hole 91 is provided on the second limit block 9 and penetrates in the up and down directions. The second slider 6 is arranged through the second guide hole 91. The second guide hole 91 is provided to provide a guide for the movement of the second slider 6, thereby ensuring the stability of the movement of the second slider 6.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A terminal positioning mechanism for an injection mold, comprising a module (1) provided with a cavity (11); It is characterized in that It also includes a positioning column (2) arranged in the up-down direction, the positioning column (2) being driven by a driving mechanism to move up-down relative to the module (1), the module (1) being provided with a through hole for the positioning column (2) to pass through, and the upper end of the positioning column (2) passing through the through hole and extending into the cavity (11) is used to position the terminal (3); The driving mechanism comprises a power component (4), a first slider (5) and a second slider (6); the first slider (5) can move in a lateral direction, and the second slider (6) can move in an up-down direction; the first slider (5) and the second slider (6) are connected via a reversing transmission structure, and the lower end of the positioning column (2) is fixedly connected to the first slider (5); when the first slider (5) is driven by the power component (4) to move in a lateral direction, the reversing transmission structure drives the second slider (6) to move up-down, thereby driving the positioning column (2) to move up-down.

2. The terminal positioning mechanism for an injection mold according to claim 1, characterized in that: The reversing transmission structure comprises an upper oblique push portion (51) and a lower oblique push portion (52) respectively arranged at the upper and lower parts of the first slider (5), and a transverse slide groove (61) arranged on the second slider (6); the upper oblique push portion (51) and the lower oblique push portion (52) are staggered in the movable direction of the first slider (5); the first slider (5) is arranged to pass through the transverse slide groove (61), and within the moving stroke of the first slider (5), the upper oblique push portion (51) and the lower oblique push portion (52) can both enter the transverse slide groove (61); when the first slider (5) moves, the upper oblique push portion (51) pushes the second slider (6) to move upward, and the lower oblique push portion (52) pushes the second slider (6) to move downward.

3. The terminal positioning mechanism for an injection mold according to claim 2, characterized in that: The power component (4) is a gas cylinder or oil cylinder having a telescopic rod (41), and the end of the telescopic rod (41) is connected to the first sliding block (5).

4. The terminal positioning mechanism for an injection mold according to claim 3, characterized in that: The end of the telescopic rod (41) is connected to a connecting block (7), and the end of the first sliding block (5) is fixedly connected to the connecting block (7).

5. The terminal positioning mechanism for an injection mold according to claim 4, characterized in that: The connecting block (7) and the first sliding block (5) are fixed by means of fixing screws (72); a positioning groove (71) is provided on the connecting block (7); and a positioning block (53) which is positioned and matched with the positioning groove (71) is provided at the corresponding end of the first sliding block (5).

6. The terminal positioning mechanism for an injection mold according to claim 4, characterized in that: It also comprises a first limiting block (8), the first limiting block (8) being provided with a first guide hole (81) arranged in a transverse direction, and one end of the first sliding block (5) away from the connecting block (7) is passed through the first guide hole (81).

7. The terminal positioning mechanism for an injection mold according to claim 1, characterized in that: It also comprises a second limiting block (9), the second limiting block (9) being provided with a second guide hole (91) penetrating in the up-down direction, and the second sliding block (6) being arranged through the second guide hole (91).

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