CN216001306U

CN216001306U - Inclined ejection spring needle structure

Info

Publication number: CN216001306U
Application number: CN202121594814.4U
Authority: CN
Inventors: 王耀晶; 袁先锋; 李升�
Original assignee: Shenzhen Xinyuda Plastic Mold Co ltd
Current assignee: Shenzhen Xinyuda Plastic Mold Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-03-11
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to the field of injection molds, and discloses an inclined ejection spring needle structure which is arranged on one side of a mold core and comprises an inclined ejection assembly and a side spring assembly; the inclined ejection assembly comprises an inclined ejection push block and an inclined ejection push rod, the inclined ejection push rod is obliquely arranged towards the middle of the mold core, and the head of the inclined ejection push rod is connected with the inclined ejection push block; the side bullet subassembly includes bullet needle, spring and side bullet guide block, and straight spout has been seted up to side bullet guide block, and in the head embedding oblique top of bullet needle pushed away the piece, the afterbody of bullet needle was equipped with square slider, and square slider sliding connection is in straight spout, and the spring cup joints outside the bullet needle. The inclined ejection bullet needle structure can reduce the abrasion of the bullet needle and prolong the service life of the bullet needle.

Description

Inclined ejection spring needle structure

Technical Field

The utility model relates to the field of injection molds, in particular to an inclined ejection spring needle structure.

Background

The injection molding product generally adopts the structure demolding of pushing up to one side, because the injection molding is cooled off the shaping and is then to the adduction, produces the packing power to pushing up to one side, in order to prevent that the injection molding from gluing to push up to one side and remove and lead to the product scratch, generally can inlay in pushing up to one side and have the bullet needle, solves the sticky problem of pushing up to one side of injection molding through the compound motion of bullet needle and pushing up to one side.

However, the tail of the existing bullet needle is in a spherical shape, the push block is ejected back and forth in the die assembly and demolding process, the point of the spherical end face of the bullet needle and the side bullet guide block are repeatedly rubbed, and the acting force is concentrated on the spherical end point of the bullet needle, so that the part is seriously abraded, and the service life of the bullet needle is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides an inclined ejection bullet needle structure which can reduce the abrasion of a bullet needle and prolong the service life of the bullet needle.

The purpose of the utility model is realized by the following technical scheme:

an inclined ejection pin structure is arranged on one side of a mold core and comprises an inclined ejection assembly and a side ejection assembly, wherein the inclined ejection assembly comprises an inclined ejection push block and an inclined ejection push rod, the inclined ejection push rod is obliquely arranged towards the middle of the mold core, and the head of the inclined ejection push rod is connected with the inclined ejection push block; the side bullet subassembly includes bullet needle, spring and side bullet guide block, straight spout has been seted up to the side bullet guide block, the head embedding of bullet needle pushes away in the piece to one side, the afterbody of bullet needle is equipped with square slider, square slider sliding connection is in straight spout, the spring cup joints outside the bullet needle.

In one embodiment, a surface of the straight sliding groove, which is used for being in contact with the square sliding block, is a vertical surface, and a surface of the square sliding block, which is used for being in contact with the straight sliding groove, is a vertical surface.

In one embodiment, a guide chute is arranged at the top of the straight chute.

In one embodiment, the inclined surface of the guide chute forms an angle of 30 ° to 60 ° with the vertical surface.

In one embodiment, two side walls of the straight sliding groove are inclined to form two inclined guide walls, the side surface of the inclined ejection pushing block close to the straight sliding groove is an inclined surface, and the inclination direction of the inclined guide walls is parallel to that of the inclined surface.

In one of them embodiment, the side bullet subassembly still includes the side bullet fixed block, the side bullet fixed block cup joints outside the afterbody of bullet needle, just the side bullet fixed block inlay in oblique top pushes up the piece.

In one embodiment, the inclined ejector push block is provided with a through hole for the head of the elastic needle to be embedded into.

In one embodiment, the lifter assembly further comprises a lifter guide block, the head of the lifter push rod penetrates through the lifter guide block to be connected with the lifter push block, the lifter guide block is provided with a guide hole for the lifter push rod to penetrate through, and the guide hole is obliquely arranged towards the middle of the die core.

In one embodiment, the pitched roof assembly further comprises a pitched roof fixing seat, and the tail part of the pitched roof push rod is hinged in the pitched roof fixing seat.

In one embodiment, the lifter assembly further comprises a lifter fixing block, the lifter fixing block is sleeved outside the head of the lifter push rod, and the lifter fixing block is embedded in the mold core.

Compared with the prior art, the utility model has at least the following advantages:

according to the utility model, the square sliding block is additionally arranged at the tail part of the bullet needle, so that the stress area is increased, the acting force is dispersed, and the straight sliding groove plays a guiding role in the sliding of the square sliding block, so that the abrasion of the lateral bullet guiding block on the square sliding block can be reduced, the abrasion of the lateral bullet guiding block on the bullet needle is reduced, and the service life of the bullet needle is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a mold according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a slant-top pogo pin structure according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a mold according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In one embodiment, referring to fig. 1, 2 and 3, a mold includes a mold core 20 and a plurality of inclined-ejecting elastic needle structures 10, wherein the inclined-ejecting elastic needle structures 10 are respectively disposed on two sides of the mold core 20. Each of the slant top latch structures 10 includes a slant top assembly 110 and a side latch assembly 120. The slanted ejecting assembly 110 includes a slanted ejecting block 111 and a slanted ejecting rod 112, the slanted ejecting rod 112 is obliquely disposed toward the middle of the mold core 20, and the head of the slanted ejecting rod 112 is connected to the slanted ejecting block 111. The side bullet assembly 120 comprises a bullet needle 121, a spring 122 and a side bullet guide block 123, the side bullet guide block 123 is provided with a straight sliding groove 1231, the head of the bullet needle 121 is embedded into the inclined ejection push block 111, the tail of the bullet needle 121 is provided with a square slider 1211, the square slider 1211 is slidably connected into the straight sliding groove 1231, and the spring 122 is sleeved outside the bullet needle 121.

The working principle of the inclined ejection spring needle 121 structure 10 is as follows: the injection molding product 30 is formed on the inclined ejector push block 111, because the inclined ejector push rod 112 is obliquely arranged towards the middle of the mold core 20, the inclined ejector push block 111 obtains the vertical movement and the horizontal movement close to the middle of the mold core 20 through the inclined ejector motion of the inclined ejector push rod 112 towards the middle of the mold core 20, because the square slide 1211 is slidably connected in the straight slide groove 1231, the elastic needle 121 keeps the horizontal position still, and the square slide 1211 vertically moves along the straight slide groove 1231, when the ejector motion reaches a certain stroke, the head of the elastic needle 121 penetrates out of the inclined ejector push block 111, the injection molding product 30 is pushed, the product and the inclined ejector push block 111 are loosened, the inclined ejector push rod 111 is not adhered any more, and the inclined ejector push rod 112 continuously drives the inclined ejector push block 111 to make the upward inclined movement to eject the product, so that the injection molding product is prevented from being scratched due to the inclined ejector motion. When the pitched roof assembly 110 moves downwards to be reset, the elastic needle 121 is reset under the action of the spring 122.

The inclined ejection pin 121 structure 10 increases the force-bearing area and disperses the force by adding the square slider 1211 at the tail of the ejection pin 121, and plays a guiding role for the sliding of the square slider 1211 through the straight chute 1231, so as to reduce the abrasion of the square slider 1211 by the side ejection guide block 123, thereby reducing the abrasion of the side ejection guide block 123 to the ejection pin 121 and prolonging the service life of the ejection pin 121.

Further, the surface of the straight sliding groove 1231, which is used for contacting with the square sliding block 1211, is a vertical surface, and the surface of the square sliding block 1211, which is used for contacting with the straight sliding groove 1231, is a vertical surface, so that the square sliding block 1211 carries the pogo pin 121 to move vertically along the straight sliding groove 1231.

Further, a guide chute 1233 is arranged at the top of the straight chute 1231, and an included angle of 30 to 60 degrees is formed between the inclined surface of the guide chute 1233 and the vertical surface, so that the square slide block 1211 can be guided by the guide chute 1233, and the elastic needle 121 is prevented from being separated from the straight chute 1231.

Furthermore, two guiding inclined walls 1232 are formed by two inclined walls of the straight sliding groove 1231, the side surface of the inclined pushing block 111 close to the straight sliding groove 1231 is an inclined surface 1111, and the inclined direction of the guiding inclined walls 1232 is parallel to the inclined direction of the inclined surface 1111, so that the guiding inclined walls 1232 can guide or avoid the movement of the inclined pushing block 111 on one hand, and limit the square sliding block 1211 on the other hand, thereby preventing the elastic needle 121 from separating from the straight sliding groove 1231.

Further, the side bullet subassembly 120 still includes side bullet fixed block 124, side bullet fixed block 124 cup joints outside the afterbody of bullet needle 121, just side bullet fixed block 124 inlay in the inslot is inlayed to the first of oblique top ejector pad 111, the confession has been seted up to the tank bottom in first inlaying the groove the through-hole of the head embedding of bullet needle 121, so can connect bullet needle 121 on oblique top ejector pad 111 through side bullet fixed block 124, and does not influence the removal of bullet needle 121 in the through-hole of oblique top ejector pad 111.

Further, the lifter assembly 110 further includes a lifter guide block 113, a head of the lifter 112 penetrates through the lifter guide block 113 to be connected with the lifter 111, the lifter guide block 113 is provided with a guide hole for the head of the lifter 112 to penetrate through, and the guide hole is obliquely arranged toward the middle of the mold insert 20, so that the lifter 112 is obliquely arranged toward the middle of the mold insert 20.

Further, the pitched roof assembly 110 further comprises a pitched roof fixing seat 114, and the tail part of the pitched roof push rod 112 is hinged in the pitched roof fixing seat 114. The pitched roof fixing seat 114 comprises a clamping seat and a sliding part, the sliding part is connected in the clamping seat in a sliding mode, the sliding part comprises a hinged block and two pitched roof sliding blocks, the tail part of the pitched roof push rod 112 is connected in the hinged block, and two sides of the hinged block are hinged to the pitched roof sliding blocks respectively. Therefore, the hinge block can rotate relative to the inclined ejection sliding block, so that the inclined ejection push rod 112 can rotate relative to the clamping seat, and the inclined ejection push rod 112 can be obliquely arranged.

Further, the lifter assembly 110 further includes a lifter fixing block 115 and a bolt, the lifter fixing block 115 is sleeved outside the head of the lifter 112, the lifter fixing block 115 is embedded in a second embedding groove of the mold core 20, and an inclined hole for the lifter 112 to pass through is formed at the bottom of the second embedding groove; the head of the inclined ejector push rod 112 is connected with the inclined ejector push block 111 through the bolt. Therefore, the slanted ejecting push rod 112 is connected to the mold core 20 through the slanted ejecting fixing block 115, and the slanted ejecting push rod 112 is fixed to the slanted ejecting push block 111 through a bolt without affecting the movement of the slanted ejecting push rod 112 in the slanted hole of the mold core 20.

the utility model increases the force bearing area and disperses the acting force by adding the square slide block 1211 at the tail part of the elastic needle 121, and plays a role in guiding the sliding of the square slide block 1211 by the straight chute 1231, thereby reducing the abrasion of the square slide block 1211 by the side elastic guide block 123, reducing the abrasion of the side elastic guide block 123 to the elastic needle 121 and prolonging the service life of the elastic needle 121.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An inclined ejection pin structure is arranged on one side of a die core and is characterized in that the inclined ejection pin structure comprises an inclined ejection assembly and a side ejection assembly, the inclined ejection assembly comprises an inclined ejection push block and an inclined ejection push rod, the inclined ejection push rod is obliquely arranged towards the middle of the die core, and the head of the inclined ejection push rod is connected with the inclined ejection push block; the side bullet subassembly includes bullet needle, spring and side bullet guide block, straight spout has been seted up to the side bullet guide block, the head embedding of bullet needle pushes away in the piece to one side, the afterbody of bullet needle is equipped with square slider, square slider sliding connection is in straight spout, the spring cup joints outside the bullet needle.

2. The angle ejection pogo pin structure of claim 1, wherein a surface of the straight slide groove for contacting the square slider is a vertical surface, and a surface of the square slider for contacting the straight slide groove is a vertical surface.

3. The angle ejection pogo pin structure of claim 1, wherein a guide chute is provided at a top of the straight chute.

4. The structure of claim 3, wherein the inclined surface of the guide chute forms an angle of 30 ° to 60 ° with the vertical surface.

5. The slant top spring needle structure according to claim 1, wherein two side walls of the straight chute are inclined to form two guide inclined walls, the side surface of the slant top pushing block close to the straight chute is an inclined surface, and the inclination direction of the guide inclined walls is parallel to the inclination direction of the inclined surface.

6. The angle ejection bullet needle structure of claim 1, wherein the side bullet assembly further comprises a side bullet fixing block, the side bullet fixing block is sleeved outside the tail portion of the bullet needle, and the side bullet fixing block is embedded in the angle ejection block.

7. The angle-ejection pogo pin structure of claim 1, wherein the angle-ejection push block is formed with a through hole into which a head of the pogo pin is inserted.

8. The angle ejector pin structure according to claim 1, wherein the angle ejector assembly further comprises an angle ejector guide block, the head of the angle ejector push rod passes through the angle ejector guide block to be connected with the angle ejector push block, the angle ejector guide block is provided with a guide hole for the angle ejector push rod to pass through, and the guide hole is obliquely arranged toward the middle of the die core.

9. The angle-top pogo pin structure of claim 1, wherein the angle-top assembly further comprises an angle-top fixing seat, and a tail portion of the angle-top push rod is hinged in the angle-top fixing seat.

10. The angle ejector spring needle structure according to claim 1, wherein the angle ejector assembly further comprises an angle ejector fixing block, the angle ejector fixing block is sleeved outside the head of the angle ejector push rod, and the angle ejector fixing block is embedded in the mold core.