CN211518388U - Hidden ejection structure of board-to-board connector plastic mold - Google Patents

Abstract

The utility model provides a board to board connector mould hidden ejecting structure, includes: the upper die assembly comprises a base and a sliding block, the ejector pin is movably arranged in a through hole of the base, the sliding block is movably mounted at the top of the base on two sides of the ejector pin respectively, a spring used for enabling the two sliding blocks to move towards the direction away from each other is arranged on the base, the ejector pin is sleeved outside the male die core, the top end of the male die core is used for mounting a metal terminal, the top end of the ejector pin is located below the metal terminal in a non-ejection state, and the upper die assembly drives the two sliding blocks to move towards the direction close to each other. The utility model realizes the increase of product strength during production and no head ejection and poor fracture; the middle part of the plastic film can be thickened, and the plastic film can not be lack of glue during injection molding production. In addition, when a new product is designed, the matching height can be smaller, a larger assembly space is brought to modern miniaturized design products, and the surface of the product is free of thimble marks, so that the product is attractive.

Description

Board-to-Board Connector Molding Mold Hidden Ejector Structure

technical field

The utility model relates to the production field of board-to-board connectors, in particular to a hidden ejection structure of a plastic-molding mold of a board-to-board connector.

Background technique

In the prior art, there are thimbles at both ends of the head of the product that are directly pushed against the product, which is easy to cause the head to break during ejection during injection molding production; there are thimbles in the middle of the product that directly push against the product, which is easy to push during injection molding production. Wear, lack of glue; there is a thimble ejector in the middle part of the product, the minimum glue level of the product requires a thickness of 0.12mm to be filled, which has limited the height of the molding glue level; there are thimble marks on the surface of the product

Utility model content

The utility model provides a hidden ejection structure of a plastic mold of a board-to-board connector to solve at least one of the above-mentioned technical problems.

In order to solve the above problems, as an aspect of the present utility model, there is provided a board-to-board connector plastic mold hidden ejector structure, including: an upper mold assembly, a lower mold assembly, a male mold core, and an ejector pin, The lower die assembly includes a base and a sliding block, the ejector pin is movably arranged in the through hole of the base, and one of the sliders is movably installed on the top of the base on both sides of the ejector pin. The base is provided with a spring for moving the two sliding blocks away from each other, the ejector pin is sleeved on the outside of the male mold core, and the top of the male mold core is used for installing metal terminals, and all the The top end of the ejector pin is located below the metal terminal in a non-ejection state, and the upper die assembly drives the two sliders to move toward each other.

Preferably, the base includes a first slider base and a second slider base, and the second slider base is installed inside the first slider base.

Preferably, the upper end of the second slider base protrudes from the upper end of the first slider base, and a concave portion for installing the spring is formed on the outer side wall of the second slider base.

Preferably, a chute for installing the slider is formed on the first slider base.

Preferably, the sliding block includes a first sliding block and a second sliding block that are connected to each other, one end of the spring abuts one side of the first sliding block, and the first sliding block is installed on the sliding block. In the groove, the second slider slides along the end of the second slider base.

Preferably, the upper die assembly includes a chicken shovel base and a chicken shovel for driving the first sliding block, and one chicken shovel is installed on each side of the lower part of the chicken shovel base.

Preferably, the contact mating surface between the chicken shovel base and the first sliding block is an inclined surface.

Due to the adoption of the above-mentioned technical solution, the utility model realizes the improvement of the ejection structure of the plastic mold of the board-to-board connector, so that the strength of the product is increased during production, and there is no bad ejection of the head; Thick, there is no shortage of glue during injection molding production. In addition, when designing new products, the matching height can be made smaller, which brings more assembly space for modern miniaturized design products, and there is no thimble mark on the surface of the product, which has a beautiful effect.

Description of drawings

Fig. 1 schematically shows the overall structure schematic diagram of the present invention;

Fig. 2 schematically shows an enlarged view of part A of Fig. 1;

Fig. 3 schematically shows a partial enlarged view of the mold clamping state;

FIG. 4 schematically shows a partial enlarged view of the first state when the mold is opened;

FIG. 5 schematically shows an enlarged view of the second state when the mold is opened;

FIG. 6 schematically shows an enlarged view of the third state when the mold is opened.

Reference symbols in the figure: 1, male model core; 2, thimble; 3, spring; 4, metal terminal; 5, the first slider base; 6, the second slider base; 7, the first slider; 8, The second slider; 9. Chicken shovel base; 10. Chicken shovel; 11. Thimble plate; 12. Return pin; 13. Return spring; 14. Thimble support plate; 15. Machine ejector rod; 16. Clearance.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

The purpose of the utility model is to improve: the strength of the two ends of the head ejector type connector is increased, so that the head will not break during the ejection; the glue position of the ejector type connector in the middle part becomes thicker, and the molding is easy to inject. Full glue; the height of the connector can be made smaller, so that it has a larger space for mating; the appearance of the connector is beautified.

One aspect of the present utility model provides a board-to-board connector plastic mold hidden ejection structure, including: an upper mold assembly, a lower mold assembly, a male mold core 1, and an ejector pin 2, the lower mold The assembly includes a base and a slider, the thimble 2 is movably arranged in the through hole of the base, and one of the sliders is movably installed on the top of the base on both sides of the thimble 2, and the base There is a spring 3 for moving the two sliders away from each other, the thimble 2 is sleeved on the outside of the male mold core 1, and the top of the male mold core 1 is used to install the metal terminal 4 , and the top end of the ejector pin 2 is located below the metal terminal 4 in the non-ejection state, and the upper die assembly drives the two sliders to move in the direction of approaching each other.

Preferably, the base includes a first slider base 5 and a second slider base 6 , and the second slider base 6 is installed inside the first slider base 5 . Preferably, the upper end of the second slider base 6 protrudes from the upper end of the first slider base 5 , and a recess for installing the spring 3 is formed on the outer side wall of the second slider base 6 . Preferably, a chute for installing the slider is formed on the first slider base 5 .

Preferably, the sliding block includes a first sliding block 7 and a second sliding block 8 that are connected to each other, one end of the spring 3 abuts one side of the first sliding block 7 , and the first sliding block 7 Installed in the chute, the second slider 8 slides along the end of the second slider base 6 .

Preferably, the upper mold assembly includes a chicken shovel base 9 and a chicken shovel 10 for driving the first sliding block 7 , and one chicken shovel 10 is installed on each side of the lower side of the chicken shovel base 9 . Preferably, the contact mating surface between the chicken shovel base 9 and the first sliding block 7 is an inclined surface.

As shown in FIG. 1 , when the mold is in the state of opening the mold, the first slider 7 and the second slider 8 are relatively stationary, and the first slider 7 is in a natural state, only the first slider 7 is moved by the tension of the spring. The second sliding block 8 also moves with the first sliding block 7 at the same time.

Please refer to Figure 3. When the mold is closed, the closing of the male and female molds is completed by the movement of the machine. During the mold closing process, the female mold shovel and the first slider 7 of the male mold contact first, and the male mold workpiece does not move at this time; during the mold closing process, the first slider 7 of the male mold is squeezed by the female mold shovel. Press, the spring is compressed, then the first slider 7 and the second slider 8 slide to the core position of the male mold at the same time; continue to close the mold to the state shown in Figure 3, at this time, the male and female molds are closed to the final position.

When the mold is opened, the sequence of closing is reversed. During the mold opening process, as the first slider 7 is reduced by the pressure of the chicken shovel, the spring tension in the first slider 7 starts to work, and the first slider 7 is bounced until the first slider base 5 stop sliding backwards at the limit.

Please refer to Figure 4 to Figure 6. After the mold is opened, the action stroke of the ejector pin is as follows: under the drive of the injection molding machine, the mold is pulled to the set position, and the first slider 7 and the second slider 8 are simultaneously backward. Slide to the limit position of the first slider base 5, there is a position of 13.00mm between the thimble plate and the upper thimble support plate. Then, the ejector rod of the machine starts to move to eject the ejector pin support plate, and at the same time drives the ejector pin to eject through the gap of the second slider 8, and then contacts the product, and continues to eject to the set height before the product can fall off. Then, the ejector rod of the machine moves back, and at the same time, the return pin and the ejector pin return the ejector mechanism to the inside of the mold by the tension of the return spring, and then the hidden ejector pin returns to the small slider to continue the next cycle of production.

In the above technical solution, before the mold is closed, the metal terminals are placed before the mold is closed to wait for the mold to be closed. After the mold is closed, the injection molding is completed. During the mold closing process, the upper mold oblique pressure block (shovel chicken) pushes the lower mold slider to complete the mold closing, forming a closed mold cavity. At this time, the ejector pin is hidden under the slider. After injection molding, the surface of the product is smooth and without traces (no thimble marks). During the mold opening process, the upper mold oblique pressure block rises with the mold opening, and the lower mold slider is reset accordingly, and the mold opening is completed. In the process of ejecting the product, after the slider of the lower die is reset, the ejector pin hidden under the slider is ejected on the metal terminal to eject the product, so the surface of the product is smooth and without traces (no ejector pin marks).

Due to the adoption of the above-mentioned technical solution, the utility model realizes the improvement of the ejection structure of the plastic mold of the board-to-board connector, so that the strength of the product is increased during production, and there is no bad ejection of the head; Thick, there is no shortage of glue during injection molding production. In addition, when designing new products, the matching height can be made smaller, which brings more assembly space for modern miniaturized design products, and there is no thimble mark on the surface of the product, which has a beautiful effect.

The utility model improves the ejection structure of the injection mold of the board-to-board connector. Before injection molding, the ejector pin of the mold is hidden under the slider. When the injection molding is completed, the slider retreats, and the ejector pin is ejected on the metal surface of the connector. , In the whole production process, the thimble is not directly ejected on the plastic surface head and the middle plastic part of the product, so the plastic head is not broken, the glue in the middle part of the product is not lacking, and there is no thimble mark or burr on the surface, and the appearance of the product is very good. beautiful.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a hidden ejecting structure of board to board connector mould which characterized in that includes: go up mould subassembly, lower mould subassembly, public mould core (1) and thimble (2), lower mould subassembly includes base and slider, thimble (2) set up movably in the through-hole of base, thimble (2) both sides the top of base is respectively installed one movably the slider, be provided with on the base and be used for making two spring (3) of slider to the direction motion of keeping away from each other, thimble (2) cover is in the outside of public mould core (1), the top of public mould core (1) is used for installing metal terminal (4), just the top of thimble (2) is located under the ejecting state of non below of metal terminal (4), it drives to go up the mould subassembly two sliders move to the direction that is close to each other.

2. The plate-to-plate connector mold hidden ejection structure according to claim 1, wherein the base comprises a first slider base (5) and a second slider base (6), the second slider base (6) being mounted inside the first slider base (5).

3. The plate-to-plate connector mold hidden ejection structure according to claim 2, wherein the upper end of the second slider base (6) protrudes from the upper end of the first slider base (5), and a recess for mounting the spring (3) is formed on the outer side wall of the second slider base (6).

4. The plate-to-plate connector mold hidden ejection structure according to claim 3, wherein the first slider base (5) is formed with a chute for mounting the slider.

5. The plate-to-plate connector mold hidden ejection structure according to claim 4, wherein the slider comprises a first slider (7) and a second slider (8) connected with each other, one end of the spring (3) () abuts against one side of the first slider (7), the first slider (7) is installed in the sliding groove, and the second slider (8) slides along the end of the second slider base (6).

6. The plate-to-plate connector mold hidden ejection structure according to claim 5, wherein the upper mold assembly comprises a chicken shoveling base (9) and chicken shoveling members (10) for driving the first sliding block (7), and the chicken shoveling members (10) are respectively mounted on two sides below the chicken shoveling base (9).

7. The plate-to-plate connector mold hidden ejection structure according to claim 6, wherein the contact mating surface between the shovel chicken base (9) and the first slider (7) is a slope.

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