CN211518388U

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

Info

Publication number: CN211518388U
Application number: CN201922386546.6U
Authority: CN
Inventors: 徐军; 林文星; 王攀
Original assignee: Shenzhen Yingfeinit Technology Co ltd
Current assignee: Shenzhen Yingfeinit Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-18
Anticipated expiration: 2029-12-26

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

Hidden ejection structure of board-to-board connector plastic mold

Technical Field

The utility model relates to a board is to board connector production field, in particular to hidden ejecting structure of board to board connector mould.

Background

In the prior art, the ejector pins are arranged at two ends of the head of a product and directly prop against the product, so that the head is easy to break when the ejector pins are ejected during injection molding production; the middle part of the product is directly propped against the product by a thimble, so that the product is easy to prop through during injection molding production and has poor glue shortage; the center glue position of the product with the ejector pin at the middle part can be fully molded only by the glue thickness of 0.12mm, and the height of the molding glue position is limited; the product surface is provided with thimble imprints

SUMMERY OF THE UTILITY MODEL

The utility model provides a hidden ejecting structure of board to board connector mould to solve at least one above-mentioned technical problem.

In order to solve the above problem, as an aspect of the utility model provides a hidden ejecting structure of board to board connector mould, include: go up mould subassembly, lower mould subassembly, public mould core and thimble, lower mould subassembly includes base and slider, the thimble set up movably in the through-hole of base, the thimble both sides the top of base respectively installs one movably the slider, be provided with on the base and be used for making two the slider is to the spring of the direction motion of keeping away from each other, the thimble cover is in the outside of public mould core, the top of public mould core is used for installing the metal terminal, just the top of thimble is located under the ejecting state of non-the below of metal terminal, it drives to go up the mould subassembly two sliders are to the direction motion that is close to each other.

Preferably, the base includes a first slider base and a second slider base, the second slider base being mounted 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 recess for mounting the spring is formed on the outer side wall of the second slider base.

Preferably, a sliding groove for mounting the sliding block is formed on the first sliding block base.

Preferably, the slider includes first slider and the second slider of interconnect, the one end of spring with one side butt of first slider, first slider is installed in the spout, the second slider is followed the tip of second slider base slides.

Preferably, go up the mould subassembly including shovel chicken base and being used for the drive the shovel chicken of first slider, shovel chicken base below both sides respectively install one shovel chicken.

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

Due to the adoption of the technical scheme, the utility model realizes the improvement of the ejection structure of the plate-to-plate connector plastic mould, and achieves the purposes of increasing the product strength during production and having 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.

Drawings

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

FIG. 2 schematically shows an enlarged view of section A of FIG. 1;

FIG. 3 schematically shows a partially enlarged view in a clamped state;

FIG. 4 schematically illustrates an enlarged partial view of a first state in an open mold state;

FIG. 5 schematically illustrates an enlarged view of a second state in the on-die state;

fig. 6 schematically shows an enlarged view of a third state in the mold-open state.

Reference numbers in the figures: 1. a male mold core; 2. a thimble; 3. a spring; 4. a metal terminal; 5. a first slider base; 6. a second slider base; 7. a first slider; 8. a second slider; 9. shoveling the chicken base; 10. shoveling the chicken; 11. an ejector plate; 12. a return pin; 13. a return spring; 14. a thimble supporting plate; 15. a machine bench ejector rod; 16. a gap.

Detailed Description

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

The utility model aims at improving: the strength of two ends of the head ejection type connector is increased, so that the head can not be broken when the connector is ejected; the middle part is provided with an ejection type connector glue position for thickening, and the forming is easy to fill glue; the height of the connector can be smaller, so that the connector has larger matching space; the connector has a beautiful appearance.

The utility model discloses an aspect provides a hidden ejecting structure of board to board connector mould, include: 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, 2 both sides of thimble the top of base is respectively installed movably one the slider, be provided with on the base and be used for making two the slider is to the spring 3 of the direction motion of keeping away from each other, 2 covers of thimble 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-metal terminal 4's below, it drives to go up mould subassembly two sliders are to the direction motion that is close to each other.

Preferably, 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. 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 mounting the spring 3 is formed on the outer side wall of the second slider base 6. Preferably, a sliding groove for mounting the slider is formed on the first slider base 5.

Preferably, the slider comprises a first slider 7 and a second slider 8 which are 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.

Preferably, go up the mould subassembly including shovel chicken base 9 and be used for the drive shovel chicken 10 of first slider 7, respectively install one on shovel chicken base 9 below both sides shovel chicken 10. Preferably, the contact matching surface between the chicken shoveling 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 sprung outward only by the tension of the spring in the natural state, so that the second slider 8 moves simultaneously with the first slider 7.

Referring to fig. 3, when the mold is closed, the male and female mold closing is completed by the movement of the machine. In the mould closing process, the female mould shovel chicken is firstly contacted with the first sliding block 7 of the male mould, and at the moment, the male mould workpiece does not move; in the process of continuously closing the die, the first sliding block 7 of the male die is extruded by the female die chicken shovel, the spring is compressed, and then the first sliding block 7 and the second sliding block 8 slide towards the core position of the male die simultaneously; the mold closing is continued to the state shown in fig. 3, at which time the male and female mold halves are closed to the final position.

When the mold is opened, the sequence is reversed from closing. In the die sinking process, the first sliding block 7 is reduced by the pressure of the chicken shoveling, so that the spring tension in the first sliding block 7 starts to act, the first sliding block 7 is bounced open, and the first sliding block 7 stops sliding backwards until the limiting position of the first sliding block base 5.

Referring to fig. 4-6, after the mold is opened, the movement of the ejector pin is as follows: the mould is pulled to a set position under the driving of the injection molding machine, at the moment, the first sliding block 7 and the second sliding block 8 simultaneously slide backwards to the limit position of the first sliding block base 5, and a position of 13.00mm is arranged between the ejector plate and the upper ejector plate. And then, the machine bench ejector rod starts to act to eject the ejector pin supporting plate, meanwhile, the ejector pin is driven to eject through the gap of the second sliding block 8, then the ejector pin contacts with the product, the product is continuously ejected to the set height, and the product can fall off. And then, the machine bench ejector rod retreats, the return pin and the ejector pin return the ejection mechanism to the interior of the mold by the tension of the return spring, and then the hidden ejector pin retreats to the position below the small slide block to continue the production in the next period.

In the technical scheme, before die assembly, the metal terminals are placed in the die before die assembly, and the die is waited to be assembled. And (3) completing injection molding after mold closing, wherein in the mold closing process, an upper mold inclined pressing block (shovel) pushes a lower mold sliding block to complete mold closing to form a closed mold cavity, the ejector pin is hidden under the sliding block at the moment, and the surface of a product is smooth and traceless (without ejector pin marks) after injection molding and cooling molding. In the die opening process, the upper die inclined pressing block ascends along with the completion of die opening, the lower die sliding block resets along with the ascending, and the die opening is completed. In the product ejection process, after the lower die sliding block is reset, the ejector pin hidden below the sliding block is ejected out of the metal terminal to eject the product, so that the surface of the product is smooth and has no trace (no ejector pin mark).

The utility model discloses a to the improvement of the ejecting structure of board to connector injection mold, before injection moulding, the mould thimble hides below the slider, and the slider retreats after injection moulding accomplishes, and the thimble is ejecting at connector metal surface this moment, and the thimble does not have direct ejecting at product plastic surface head and middle plastic position in whole production process, so the plastic head does not have the fracture, and the product middle part is glued the position and is lacked gluey, and the surface also does not have any thimble seal of a government organization in old china or burr, and product appearance is very pleasing to the eye.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

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.