An injection mold for a connector

Abstract

This utility model provides an injection mold for a connector, including an upper mold and a lower mold. The lower mold includes: a first template with a mold core fixedly mounted thereon; a first push plate, which is movable up and down on the first template and has a pre-pull position for driving the connector to separate from the mold core; and a second push plate, which is movable up and down below the first template and has ejector pins for driving the connector to separate from the mold core. A clutch mechanism is provided between the second push plate and the first push plate. When the connector is separated, the first push plate and the second push plate move upward synchronously. First, the first push plate drives the product to initially separate from the mold core, eliminating most of the clamping force. Then, the second push plate moves independently, and the ejector pins completely separate the connector from the mold core. Compared with the prior art, this can be applied to larger connectors.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an injection mold for a connector. Background Technology

[0002] Connectors are a type of connector frequently encountered in the field of electronic engineering. They are commonly used for connections between wire harnesses or between wire harnesses and electrical components.

[0003] Connectors are produced by injection molding. After the product cools and shrinks, a significant clamping force is generated between it and the mold core. For large-sized connectors, the force of traditional ejector pins is relatively small and cannot provide sufficient ejection force to overcome the adhesion force between the entire product and the mold core. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the prior art, such as small ejection force of the ejector pin and inability to separate the product from the mold core, so as to provide an injection mold for a connector with large ejection force.

[0005] Therefore, this utility model provides an injection mold for a connector, including an upper mold and a lower mold. The lower mold includes a first template, a first push plate, and a second push plate. The first template is fixedly provided with a mold core. The first push plate is movably mounted on the first template and has a pre-extraction position for driving the connector to separate from the mold core. The second push plate is movably mounted below the first template and has an ejector pin for driving the connector to separate from the mold core. A clutch mechanism is provided between the second push plate and the first push plate. Before the first push plate moves to the pre-extraction position, the clutch mechanism is engaged, and the second push plate moves synchronously with the first push plate. After the first push plate moves to the pre-extraction position, the clutch mechanism is disengaged, the first push plate remains stationary, and the second push plate continues to move to drive the ejector pin to completely separate the connector from the mold core.

[0006] The clutch mechanism includes: two push rods, respectively disposed on both sides of the second push plate and arranged vertically; two sliders, respectively disposed on both sides of the first push plate, the sliders being movably mounted in the first groove of the first push plate via elastic elements, the sliders having an engaged state driven by the push rods to move the first push plate toward the pre-extraction position, and a disengaged state separated from the push rods, the end of the slider extending out of the first push plate having a lower abutment portion and an upper first mating inclined surface, the abutment portion abutting against the top of the push rod; and two guide blocks fixed on both sides of the first template, the guide blocks having a second mating inclined surface corresponding to the first mating inclined surface, the second mating inclined surface of the guide block engaging with the first mating inclined surface to drive the sliders to switch from the engaged state to the disengaged state.

[0007] The guide block is formed in a second groove for the push rod to move.

[0008] The elastic element is a spring, with one end of the spring abutting against the inner wall of the first groove and the other end abutting against the slider.

[0009] The lower mold has feet at the four corners of the side where the clutch mechanism is located.

[0010] The lower mold has a positioning block on its top, and the upper mold has a positioning groove that matches the positioning block.

[0011] The technical solution of this utility model has the following advantages:

[0012] 1. The connector injection mold provided by this utility model has a first push plate and a second push plate that move upward synchronously when the connector is separated. The first push plate first drives the product to initially separate from the mold core, eliminating most of the clamping force. Then the second push plate moves independently and uses ejector pins to completely separate the connector from the mold core. Compared with the prior art, this can be applied to larger connectors.

[0013] 2. The injection mold for the connector provided by this utility model includes a clutch mechanism comprising a push rod, a slider, and a guide block. The second push plate first abuts against the slider via the push rod, thereby driving the first push plate to move upwards synchronously. Then, the first mating inclined surface of the slider abuts against the second mating inclined surface of the guide block, causing it to move horizontally into the first groove until the slider separates from the push rod. At this point, the first push plate moves to the pre-extraction position, and then the second push plate continues to move upwards, driving the connector to completely separate from the mold core via an ejector pin. The aforementioned clutch mechanism has the advantage of simple structure.

[0014] 3. The injection mold for the connector provided by this utility model has four corner feet on the side of the lower mold where the clutch mechanism is located. This way, the corner feet can protect the clutch mechanism and prevent it from contacting the ground when the mold is assembled or disassembled. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the connector injection mold of this utility model;

[0017] Figure 2 for Figure 1 Cross-sectional view;

[0018] Figure 3 This is a three-dimensional view of the lower mold;

[0019] Figure 4 for Figure 3 Cross-sectional view;

[0020] Figure 5 for Figure 4 A magnified structural diagram of part A in the middle;

[0021] Figure 6 This is an exploded structural diagram of the guide block, push rod, and slider.

[0022] Explanation of reference numerals in the attached drawings: 1. Upper mold; 2. Lower mold; 3. First template; 4. Mold core; 5. First push plate; 6. Connector; 7. Second push plate; 8. Ejector pin; 9. Push rod; 10. Slider; 11. First slide groove; 12. Second slide groove; 13. Abutment part; 14. First mating slope; 15. Second mating slope; 16. Guide block; 17. Stand; 18. Positioning block; 19. Positioning groove; 20. Elastic element. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Example

[0028] This embodiment provides an injection mold for a connector, such as Figure 1 As shown, it includes upper mold 1 and lower mold 2, as follows: Figure 2 As shown, the lower mold 2 has a positioning block 18 on its top, and the upper mold 1 has a positioning groove 19 that is adapted to the positioning block 18.

[0029] like Figure 3 and Figure 4As shown, the lower mold 2 includes: a first template 3, on which a mold core 4 is fixedly mounted; a first push plate 5, movably mounted on the first template 3, having a pre-extraction position for partially separating the drive connector 6 from the mold core 4; and a second push plate 7, movably mounted below the first template 3, having an ejector pin 8 for driving the connector 6 to separate from the mold core 4. A clutch mechanism is provided between the second push plate 7 and the first push plate 5. Before the first push plate 5 moves to the pre-extraction position, the clutch mechanism is engaged, and the second push plate 7 moves synchronously with the first push plate 5. After the first push plate 5 moves to the pre-extraction position, the clutch mechanism is disengaged, the first push plate 5 remains stationary, and the second push plate 7 continues to move, driving the ejector pin 8 to completely separate the connector 6 from the mold core 4. The lower mold 2 has four corner supports 17 on the side with the clutch mechanism.

[0030] In this embodiment, as Figure 5 and Figure 6 As shown, the clutch mechanism includes two push rods 9, which are respectively disposed on both sides of the second push plate 7 and arranged in a vertical direction; two sliders 10, which are respectively disposed on both sides of the first push plate 5. The sliders 10 are movably mounted in the first slide groove 11 of the first push plate 5 in a horizontal direction by means of an elastic element 20. The sliders 10 have an engaged state in which they are driven by the push rods 9 to move the first push plate 5 toward the pre-pull position, and a disengaged state in which they are separated from the push rods 9. The elastic element 20 is a spring, one end of which abuts against the inner wall of the first slide groove 11, and the other end abuts against the sliders 10. The end of the slider 10 extending out of the first push plate 5 has a lower abutment portion 13 and an upper first mating inclined surface 14. The abutment portion 13 can abut against the top of the push rod 9. Two guide blocks 16 are fixed on both sides of the first template 3. The guide blocks 16 are formed with a second mating inclined surface 15 corresponding to the first mating inclined surface 14. The guide blocks 16 are formed in a second sliding groove 12 for the push rod 9 to move. The second mating inclined surface 15 of the guide blocks 16 cooperates with the first mating inclined surface 14 to drive the slider 10 to switch from the engaged state to the disengaged state.

[0031] The connector injection mold provided by this utility model has a first push plate 5 and a second push plate 7 that move upward synchronously when the connector is separated. The first push plate 5 first drives the product to initially separate from the mold core 4, eliminating most of the clamping force. Then the second push plate 7 moves independently and uses ejector pins to completely separate the connector 6 from the mold core 4. Compared with the prior art, this can be applied to larger connectors.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An injection mold for a connector, comprising an upper mold (1) and a lower mold (2), characterized in that, The lower mold includes: The first template (3) is fixedly provided with a mold core (4); The first push plate (5) is movable up and down on the first template (3) and has a pre-pull position where the drive connector (6) is partially separated from the mold core (4); The second push plate (7) is movably mounted below the first template (3) and is provided with an ejector pin (8) for driving the connector (6) to separate from the mold core (4). A clutch mechanism is provided between the second push plate (7) and the first push plate (5). Before the first push plate (5) moves to the pre-extraction position, the clutch mechanism is engaged. The second push plate (7) moves synchronously with the first push plate (5). After the first push plate (5) moves to the pre-extraction position, the clutch mechanism is disengaged. The first push plate (5) remains stationary, and the second push plate (7) continues to move to drive the ejector pin (8) to completely separate the connector (6) from the mold core (4).

2. The injection mold for the connector according to claim 1, characterized in that, The clutch mechanism includes: Two push rods (9) are respectively located on both sides of the second push plate (7) and are arranged in the vertical direction; Two sliders (10) are respectively disposed on both sides of the first push plate (5). The sliders (10) are installed in the first groove (11) of the first push plate (5) in a horizontal direction by means of an elastic element (20). The sliders (10) have an engaged state in which they are driven by the push rod (9) to move the first push plate (5) toward the pre-pull position, and a disengaged state in which they are separated from the push rod (9). The end of the slider (10) extending out of the first push plate (5) has a lower abutment portion (13) and an upper first mating inclined surface (14). The abutment portion (13) can abut against the top of the push rod (9). Two guide blocks (16) are fixed on both sides of the first template (3). The guide blocks (16) are formed with a second mating slope (15) corresponding to the first mating slope (14). The second mating slope (15) of the guide blocks (16) is mated with the first mating slope (14) to drive the slider (10) to switch from the combined state to the separated state.

3. The injection mold for the connector according to claim 2, characterized in that, The guide block (16) is formed in a second groove (12) for the push rod (9) to move.

4. The injection mold for the connector according to claim 2, characterized in that, The elastic element (20) is a spring, one end of which abuts against the inner wall of the first groove (11), and the other end abuts against the slider (10).

5. The injection mold for the connector according to claim 1, characterized in that, The lower mold (2) has four corner feet (17) on one side of the clutch mechanism.

6. The injection mold for the connector according to claim 1, characterized in that, The lower mold (2) is provided with a positioning block (18) at its top, and the upper mold (1) is provided with a positioning groove (19) that is adapted to the positioning block (18).

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