Pin accessory and processing equipment thereof

Abstract

The present invention discloses a pin accessory, comprising a plastic insulating shell and two metal conductive pins inserted into the plastic insulating shell. A pin hole corresponding to each metal conductive pin is provided in the plastic insulating shell, and a bent slot is provided in each pin hole. The upper end portion of each metal conductive pin extends out of the plastic insulating shell, and a bent portion that cooperates with the bent slot is provided on the portion of each metal conductive pin extending into the pin hole. The upper end of each metal conductive pin extends out of the plastic insulating shell and is connected to a wire. The present invention also discloses a pin accessory and processing equipment thereof. The present invention improves connection stability and can simultaneously improve the final mold forming effect, thereby avoiding product waste.

Description

Technical Field

[0001] The present invention relates to the technical field of assembling a pin accessory, in particular to a pin accessory and processing equipment thereof. Background Art

[0002] At present, pin accessories are the most common connecting devices in electronic products, which can connect electrical appliances. The most common pin accessories are two or more pins and a plastic insulating shell for assembling metal conductive pins. During the assembly process, the two metal conductive pins need to be inserted into the plastic insulating shell. The pins on the current pin accessories are all straight structures, which can easily cause them to be pulled out of the plastic insulating shell under the action of external force, thereby affecting the conductive performance. Moreover, when the current pins are assembled into the plastic insulating shell, they are generally fixed directly above the pin through the upper mold, and then the lower pin is fixed below the lower mold, and then the mold is closed. At the same time, the mold cavity is injected to form the plastic insulating shell, and finally the pin is placed in the plastic insulating shell. However, when the upper and lower molds are closed, the pin length is long enough, so the middle part of the pin is easily deformed during the closing of the mold, which wears the fitting gap between the plastic insulating shell and the pin and affects the fixing effect. Therefore, improvement is needed. Summary of the Invention

[0003] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art and to provide a pin accessory and processing equipment thereof that improves the pin positioning effect while avoiding deformation of the middle part of the pin during mold closing, which causes wear of the fitting clearance between the plastic insulating shell and the pin and ultimately leads to a decrease in product yield.

[0004] In order to achieve the above-mentioned purpose, the present invention is designed to provide a pin accessory, comprising a plastic insulating shell and two metal conductive pins inserted into the plastic insulating shell. A pin hole corresponding to each metal conductive pin is provided in the plastic insulating shell, and a bent slot is provided in each pin hole. The upper end portion of each metal conductive pin extends out of the plastic insulating shell, and a bent portion that cooperates with the bent slot is provided on the portion of each metal conductive pin extending into the pin hole. The upper end of each metal conductive pin extends out of the plastic insulating shell and is connected to a wire.

[0005] In order to improve the fixing effect of the metal conductive pin connection, an extension portion for fixing the metal conductive pin is provided above the plastic insulating shell.

[0006] The present invention also discloses a processing device for pin accessories, comprising an upper template and a lower template that cooperate with each other, a lower mold core is provided in the lower template, a lower mold forming cavity for forming the base of the plastic insulating shell is provided in the lower mold core, a lower metal fixing hole for fixing the lower end of the metal conductive pin is provided in the lower mold forming cavity, an active cavity and an upper mold cavity located below the active cavity are provided in the upper template, at least two spaced positioning springs with upper ends fixed in the upper template are provided above the active cavity, a support pad is provided between the two positioning springs, an upper mold forming core that can move up and down after being driven by the positioning spring is provided below the support pad, and a lower mold forming hole is provided below the support pad. Guide rods extending from the upper mold plate are provided on both sides relative to the upper mold forming core, and the guide rods can slide up and down in the upper mold plate, and an upper mold forming cavity for forming an extension of the plastic insulating shell is provided below the upper mold forming core, and an upper metal fixing hole for fixing the upper end of the metal conductive pin is provided in the upper mold forming cavity. When the upper mold plate and the lower mold plate are closed, the guide rods are pressed together by the lower mold plate to reset and compress the positioning spring, so that the lower surface of the upper mold forming cavity extends into the upper mold cavity. When the upper mold plate and the lower mold plate are opened, the positioning spring restores the factory shape and extends the upper mold forming cavity downward, so that the lower surface of the upper mold forming cavity is flush with the lower surface of the upper mold cavity below.

[0007] Preferably, in order to facilitate installation, the upper portion of the support pad is connected to one end of all the positioning springs, and the other end of the positioning spring is placed in the upper template.

[0008] Preferably, in order to facilitate installation, a fixing plate is fixed below the support pad by a first screw, the upper mold forming core is fixed to the fixing plate, and the upper end of the guide rod passes through the fixing plate and is connected to the support pad.

[0009] Preferably, in order to facilitate installation, the upper mold cavity is fixed to the upper mold plate by a second screw.

[0010] Preferably, in order to facilitate installation, the lower mold core is fixed to the lower mold plate by a third screw.

[0011] Compared with the prior art, the present invention has the following technical effects: 1. In a pin accessory disclosed in the present invention, a bending portion is provided on the part where the metal conductive pin is inserted into the pin hole, so that the bending portion can be used later to prevent the exposed part of the metal conductive pin from falling out of the plastic insulating shell due to external force, thereby affecting the conductivity of the wiring. Once the metal conductive pin and the plastic insulating shell are installed, the later connection stability is better.

[0012] 2. The present invention discloses a processing equipment for pin accessories. When installing, the lower part of the metal conductive pin is inserted into the lower metal fixing hole of the lower mold core for fixing. At this time, due to the action of the upper positioning spring, the lower support pad is moved downward, and finally the upper mold forming core below is driven to move downward to ensure that the lower surface of the upper mold forming cavity is flush with the lower surface of the upper mold cavity below. At this time, when the upper part of the metal conductive pin is inserted into the upper metal fixing hole, the upper mold forming cavity can completely wrap up the upper half of the metal conductive pin except the remaining part located in the lower metal fixing hole, so that the entire metal conductive pin is completely wrapped and limited. Then, when the mold is closed, when the lower mold plate moves downward, the support plate is pushed under the action of the guide rod. The support plate is pushed upward and squeezes the positioning spring, and the metal conductive pin will not be bent at this time. After the mold is completely closed, the lower mold core and the upper mold cavity are fitted together. Under the action of the positioning spring, they are always fitted together, further improving the mold closing effect. Then injection molding is performed to produce the plastic insulating shell, and finally the processing of the pin accessories disclosed in this embodiment is realized. Therefore, this structure can avoid the problem that the middle part of the pin is easily deformed during mold closing due to the pin being long enough and partially exposed to the outside, which causes the fitting clearance between the plastic insulating shell and the pin to be worn and affects the fixing effect. This structure adjusts the positioning position on the metal conductive pin through spring adjustment to improve the final mold closing molding effect and avoid product scrap. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic cross-sectional view of a plastic insulating housing in a pin accessory in Example 1; Figure 2 This is a schematic cross-sectional view of a pin accessory in Example 1; Figure 3 This is a schematic structural diagram of a pin accessory processing device in Example 1 during mold opening; Figure 4 This is a schematic structural diagram of a pin accessory processing device in Example 1 during mold closing.

[0014] In the figure: plastic insulating shell 1, metal conductive pin 2, pin hole 3, bent slot 4, bent portion 5, extension portion 6, upper template 7, lower template 8, lower mold core 9, base 1-1, lower mold forming cavity 10, lower metal fixing hole 11, movable cavity 12, upper mold cavity 13, positioning spring 14, support pad 15, upper mold forming core 16, guide rod 17, upper mold forming cavity 18, upper metal fixing hole 19, fixing plate 20, first screw 21, second screw 22, third screw 23. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] Example 1: Please refer to Figure 1-Figure 2 The present embodiment provides a pin accessory, comprising a plastic insulating shell 1 and two metal conductive pins 2 inserted into the plastic insulating shell 1. A pin hole 3 corresponding to each metal conductive pin 2 is provided in the plastic insulating shell 1, and a bent slot 4 is provided in each pin hole 3. The upper end portion of each metal conductive pin 2 extends out of the plastic insulating shell 1, and a bent portion 5 is provided at the portion of each metal conductive pin 2 extending into the pin hole 3, which cooperates with the bent slot 4. The upper end of each metal conductive pin 2 is connected to the wire after extending out of the plastic insulating shell 1. Through the above-mentioned structural arrangement, a bent portion 5 is provided at the portion where the metal conductive pin 2 is inserted into the pin hole 3, so that the bent portion 5 can be used later to prevent the exposed portion of the metal conductive pin 2 from falling out of the plastic insulating shell 1 due to external force, thereby affecting the conductivity of the wiring. Once the metal conductive pin 2 is installed with the plastic insulating shell 1, the subsequent connection stability is better.

[0017] In order to improve the fixing effect of the connection of the metal conductive pin 2, an extension portion 6 for fixing the metal conductive pin 2 is provided above the plastic insulating shell 1. By providing the extension portion 6 wrapped around the outside of the metal conductive pin 2, the connection strength between the metal conductive pin 2 and the plastic insulating shell 1 is improved.

[0018] like Figure 3 、 Figure 4As shown, this embodiment also discloses a processing device for a pin accessory, including an upper template 7 and a lower template 8 that cooperate with each other, a lower mold core 9 is provided in the lower template 8, a lower mold forming cavity 10 for forming the base 1-1 of the plastic insulating shell 1 is provided in the lower mold core 9, a lower metal fixing hole 11 for fixing the lower end of the metal conductive pin 2 is provided in the lower mold forming cavity 10, an active cavity 12 and an upper mold cavity 13 located below the active cavity 12 are provided in the upper template 7, at least two spaced positioning springs 14 are provided above the active cavity 12, a support pad 15 is provided between the two positioning springs 14, an upper mold forming core 16 that can move up and down after being driven by the positioning spring 14 is provided below the support pad 15, and a support pad 15 is provided below the support pad 15. Below the upper mold forming core 16, guide rods 17 extending from the upper mold plate 7 are provided on both sides thereof. The guide rods 17 can slide up and down in the upper mold plate 7. Below the upper mold forming core 16, an upper mold forming cavity 18 for forming the extension portion 6 of the plastic insulating shell 1 is provided. An upper metal fixing hole 19 for fixing the upper end of the metal conductive pin 2 is provided in the upper mold forming cavity 18. When the upper mold plate 7 and the lower mold plate 8 are closed, the guide rods 17 are pressed together by the lower mold plate 8 to reset and compress the positioning spring 14, so that the lower surface of the upper mold forming cavity 18 extends into the upper model cavity 13. When the upper mold plate 7 and the lower mold plate 8 are opened, the positioning spring 14 restores the factory shape and extends the upper mold forming cavity 18 downward, so that the lower surface of the upper mold forming cavity 18 is flush with the lower surface of the upper model cavity 13 below.

[0019] When this structure is operated, first, the upper template 7 and the lower template 8 are in the mold opening state, and the lower part of the metal conductive pin 2 is first inserted into the lower metal fixing hole 11 of the lower mold core 9 for fixing. At this time, due to the action of the upper positioning spring 14, the lower support pad 15 is moved downward, and finally the upper mold forming core 16 below is also driven to move downward to ensure that the lower surface of the upper mold forming cavity 18 is flush with the lower surface of the upper mold cavity 13 below. At this time, when the upper part of the metal conductive pin 2 is inserted into the upper metal fixing hole 19, the upper mold forming cavity 18 can completely wrap up the upper half of the metal conductive pin 2 except the remaining part located in the lower metal fixing hole 11, so that the entire metal conductive pin 2 is completely wrapped and limited. Then, when the mold is closed, when the lower template 8 moves down, at this time, on the guide rod 17 Under the action of , the support pad 15 will be pushed upward and the positioning spring 14 will be squeezed. At this time, the metal conductive pin 2 will not be bent. After the mold is completely closed, the lower mold core 9 and the upper mold cavity 13 are in contact. Under the action of the positioning spring 14, they are always in contact, further improving the mold closing effect. Then injection molding is performed to produce the plastic insulating shell 1, and finally the processing of the pin accessories disclosed in this embodiment is realized. Therefore, this structure can avoid the problem that the middle part of the pin is easily deformed during mold closing due to the pin being long enough and partially exposed to the outside, which causes the fitting clearance between the plastic insulating shell and the pin to be worn and affects the fixing effect. This structure adjusts the positioning position on the metal conductive pin 2 through spring adjustment to improve the final mold closing molding effect and avoid product scrap.

[0020] Preferably, in order to facilitate installation, the upper side of the support pad 15 is connected to one end of all the positioning springs 14 , and the other end of the positioning spring 14 is placed in the upper template 7 .

[0021] Preferably, in order to facilitate installation, a fixing plate 20 is fixed below the support pad 15 by a first screw 21, the upper mold forming core 16 is fixed to the fixing plate 20, and the upper end of the guide rod 17 passes through the fixing plate 20 and is connected to the support pad 15. This structure fixes the support pad 15 and the fixing plate 20 by the first screw 21, which is convenient for later disassembly.

[0022] Preferably, in order to facilitate installation, the upper mold cavity 13 is fixed to the upper mold plate 7 by a second screw 22. This structure fixes the upper mold cavity 13 to the upper mold plate 7 by the second screw 22, which is convenient for later disassembly.

[0023] Preferably, in order to facilitate installation, the lower mold core 9 is fixed to the lower mold plate 8 by a third screw 23. This structure fixes the lower mold core 9 to the lower mold plate 8 by the third screw 23, which is convenient for later disassembly.

[0024] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; 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 internal communication between two elements or an interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for pin accessories, characterized by: The invention comprises an upper template (7) and a lower template (8) which cooperate with each other, a lower mold core (9) is provided in the lower template (8), a lower mold forming cavity (10) for forming a base (1-1) of a plastic insulating shell (1) is provided in the lower mold core (9), a lower metal fixing hole (11) for fixing the lower end of a metal conductive pin (2) is provided in the lower mold forming cavity (10), an active cavity (12) and an upper mold cavity (13) located below the active cavity (12) are provided in the upper template (7), at least two spaced positioning springs (14) whose upper ends are fixed in the upper template (7) are provided above the active cavity (12), a support pad (15) is provided between the two positioning springs (14), an upper mold forming core (16) which can be moved up and down after being driven by the positioning spring (14) is provided below the support pad (15), and a support pad (15) is provided below the support pad (15) relative to the upper mold forming core (1 6) are provided with guide rods (17) extending from the upper template (7) on both sides, and the guide rods (17) can slide up and down in the upper template (7), and an upper mold forming cavity (18) for forming the extension portion (6) of the plastic insulating shell (1) is provided below the upper mold forming core (16), and an upper metal fixing hole (19) for fixing the upper end of the metal conductive pin (2) is provided in the upper mold forming cavity (18). When the upper template (7) and the lower template (8) are closed, the guide rods (17) are pressed by the lower template (8) to reset and compress the positioning spring (14), so that the lower surface of the upper mold forming cavity (18) extends into the upper mold cavity (13). When the upper template (7) and the lower template (8) are opened, the positioning spring (14) restores the factory shape and extends the upper mold forming cavity (18) downward, so that the lower surface of the upper mold forming cavity (18) is flush with the lower surface of the upper mold cavity (13) below.

2. The processing equipment for pin accessories according to claim 1, characterized in that: The upper portion of the support pad (15) is connected to one end of all the positioning springs (14), and the other end of the positioning spring (14) is placed in the upper template (7).

3. The processing equipment for pin accessories according to claim 2, characterized in that: A fixing plate (20) is fixed below the support pad (15) via a first screw (21), the upper mold forming core (16) is fixed to the fixing plate (20), and the upper end of the guide rod (17) passes through the fixing plate (20) and is connected to the support pad (15).

4. The processing equipment for pin accessories according to claim 3, characterized in that: The upper mold cavity (13) is fixed to the upper mold plate (7) via a second screw (22).

5. The processing equipment for pin accessories according to claim 3, characterized in that: The lower mold core (9) is fixed to the lower mold plate (8) via a third screw (23).

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