CN212045705U

CN212045705U - Injection mold of self-adaptation jump ring position circle

Info

Publication number: CN212045705U
Application number: CN201922100374.1U
Authority: CN
Inventors: 高克火
Original assignee: Yuhuan Auto Parts Industry Co ltd
Current assignee: Yuhuan Auto Parts Industry Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-12-01
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to an injection mold of self-adaptation jump ring position circle, including movable mould and cover half, the system has the second die cavity on the movable mould, the system has first die cavity on the cover half, the second die cavity with first die cavity all is semi-circular, the movable mould still includes columniform slider, during the compound die the slider is located the circular mould intracavity that second die cavity and first die cavity enclose, the inner wall of second die cavity, first die cavity with the lateral wall of slider constitutes the position circle die cavity jointly, and molten plastics enters into through each runner and runner in the position circle die cavity. Compared with the prior art, the utility model, its advantage is that make self-adaptation jump ring position circle injection moulding once, simplifies manufacturing procedure, and reduce cost improves production efficiency.

Description

Injection mold of self-adaptation jump ring position circle

Technical Field

The utility model relates to an injection mold especially relates to an injection mold of self-adaptation jump ring position circle.

Background

The circlip is also called retainer ring or retainer ring, belongs to a kind of fastener, and is used for being installed in the shaft groove or hole groove of machine and equipment, and plays the role of preventing the axial movement of the parts on the shaft or hole. At present, in the widely used snap spring, the structure is single, and the function is single. And the clamp spring is directly fixed on the workpiece, so that the requirement on the precision of the workpiece is high, and the clamp spring is difficult to operate. Therefore, the clamp spring is required to be designed to be matched with the clamp spring, and the clamp spring can be indirectly arranged on a workpiece. Patent CN201820617440.5 discloses auto-lock fixing device of quick connector, wherein the position collar 6 of this jump ring of jump ring and cooperation installation including novel structure, as shown in figure 6, 7, 8, it has jump ring constant head tank 61 and supplementary jump ring constant head tank 62 to make on the position collar 6, jump ring constant head tank 61 wholly is approximately in the C font, and by sharp hook holding ring 64, fretwork ring 65 and spacing ring 66 are constituteed, the system has location step 67 on the sharp hook holding ring 64, supplementary jump ring constant head tank 62 is the same with jump ring constant head tank 61's structure, the bulge loop 63 has still been made to the outer wall of position collar 6, position collar 6 makes the loading and unloading of jump ring more simple and convenient. However, the positioning ring has a complex structure, the existing mold cannot be formed at one time, multiple times of manual processing are needed, the manufacturing process is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of prior art, provide an injection mold who enables above-mentioned self-adaptation jump ring position circle one shot forming.

For realizing the purpose the utility model adopts the technical proposal that:

the injection mold of self-adaptation jump ring position circle, including movable mould and cover half, the system has the second die cavity on the movable mould, the system has first die cavity on the cover half, the second die cavity with first die cavity all is semicircular, the movable mould still includes columniform slider, during the compound die the slider is located the circular die cavity that second die cavity and first die cavity enclose, the inner wall of second die cavity, the inner wall of first die cavity with the lateral wall of slider constitutes the position circle die cavity jointly, and molten plastics enters into through each runner and runner in the position circle die cavity.

As a further optimization of the above technical solution: the both sides of second die cavity inner wall all make twice arc chimb, and four arc chimbs are two rows and are listed as, bilateral symmetry sets up, and four arc chimbs are close to the one end at second die cavity inner wall middle part all makes the breach.

As a further optimization of the above technical solution: the inner wall of the first cavity is provided with two semicircular convex edges, the middle of each semicircular convex edge is provided with an arc-shaped first groove, the center of each first groove is provided with a convex block, and the convex blocks on the two semicircular convex edges extend outwards to the upper surface and the lower surface of the first cavity respectively.

As a further optimization of the above technical solution: when the die is closed, the semicircular convex edge is connected with the arc convex edge, and one side surface of the arc convex edge, one side surface of the semicircular convex edge and one side surface of the convex block are tightly attached to the side wall of the sliding block.

As a further optimization of the above technical solution: the middle part of the positioning ring die cavity is provided with a circular second groove, and the second groove is tightly attached to one of the semicircular convex edges.

As a further optimization of the above technical solution: the inner side of the other semicircular convex edge is also connected with a positioning strip, the surface of the positioning strip and the groove bottom of the first groove are positioned on the same plane, and two end faces of the positioning strip are both made into inclined planes.

As a further optimization of the above technical solution: and a channel penetrates through the inside of the movable die, and an opening at one end of the channel is positioned in the middle of the second cavity.

Compared with the prior art, the utility model, its advantage is that make self-adaptation jump ring position circle injection moulding once, simplifies manufacturing procedure, and reduce cost improves production efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the second cavity of the present invention.

Fig. 3 is a schematic perspective view of the first cavity of the present invention.

Fig. 4 is a schematic structural diagram of the second cavity in the present invention.

Fig. 5 is a schematic structural diagram of the first cavity in the present invention.

Fig. 6 is a schematic structural view of the injection-molded retainer ring of the present invention.

FIG. 7 is a cross-sectional structural view of the cage of FIG. 6.

Fig. 8 is a schematic structural diagram of the snap spring positioning groove in fig. 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-8, the injection mold of the self-adaptive snap spring retainer ring comprises a movable mold 1 and a fixed mold 2, wherein a second cavity 11 is formed in the movable mold 1, a first cavity 21 is formed in the fixed mold 2, the second cavity 11 and the first cavity 21 are both semicircular, the movable mold 1 further comprises a cylindrical sliding block 7, the sliding block 7 is located in a circular cavity formed by the second cavity 11 and the first cavity 21 in the mold closing process, the inner wall of the second cavity 11, the inner wall of the first cavity 21 and the side wall of the sliding block 7 jointly form a retainer ring mold cavity 3, and molten plastic enters the retainer ring mold cavity 3 through each runner 4 and a gate 5. Fig. 1 is only one example of the arrangement of the present invention, and for the convenience of observation, fig. 1 omits a part of the movable mold 1 and the slide block 7.

In the above technical scheme: as shown in fig. 2 and 4, two sides of the inner wall of the second cavity 11 are provided with two arc-shaped flanges 111, four arc-shaped flanges 111 are arranged in two rows and two columns and are arranged in bilateral symmetry, and one end of each arc-shaped flange 111 close to the middle part of the inner wall of the second cavity 11 is provided with a notch 1111.

In the above technical scheme: as shown in fig. 3 and 5, two semicircular convex edges 211 are formed on the inner wall of the first cavity 21, an arc-shaped first groove 2111 is formed in the middle of each semicircular convex edge 211, a protrusion 2112 is formed in the center of each first groove 2111, and the protrusions 2112 on the two semicircular convex edges 211 extend outwards to the upper surface and the lower surface of the first cavity 21 respectively. When the die is closed, the semicircular convex edge 211 is connected with the arc convex edge 111, and one side surface of the arc convex edge 111, one side surface of the semicircular convex edge 211 and one side surface of the convex block 2112 are tightly attached to the side wall of the sliding block 7. The semicircular convex edge 211 and the arc convex edge 111 correspondingly form a hollow ring 65, the first groove 2111 correspondingly forms a limit ring 66, the bump 211 enables the middle of the limit ring 66 to be isolated, a gap between two arc convex edges 111 in the same row correspondingly forms a pointed hook positioning ring 64, and the notch 1111 correspondingly forms a positioning step 67.

In the above technical scheme: the middle part of the positioning ring die cavity 3 is provided with a circular second groove 31, the second groove 31 is tightly attached to one of the semicircular convex edges 211, and the second groove 31 correspondingly forms a convex ring 63.

In the above technical scheme: the inner side of the other semicircular convex edge 211 is further connected with a positioning strip 212, the surface of the positioning strip 212 and the groove bottom of the first groove 2111 are located on the same plane, and two end faces of the positioning strip 212 are made into inclined planes 2121.

In the above technical scheme: a channel 12 is formed in the movable mold 1 in a penetrating manner, and an opening at one end of the channel 12 is located in the middle of the second cavity 11. The channel 12 is used for venting the cage cavity 3 during injection molding. And an ejector rod is further arranged in the channel 12, the fixed mold and the movable mold are separated after injection molding is finished, the slide block 7 looses a core, and finally the ejector rod ejects a product out of the second cavity 11.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.

Claims

1. Injection mold of self-adaptation jump ring position circle, including movable mould (1) and cover half (2), the system has second die cavity (11) on movable mould (1), the system has first die cavity (21) on cover half (2), its characterized in that second die cavity (11) with first die cavity (21) all are semicircular, movable mould (1) still includes columniform slider (7), during the compound die slider (7) are located in the circular mould intracavity that second die cavity (11) and first die cavity (21) enclosed, the inner wall of second die cavity (11), the inner wall of first die cavity (21) with the lateral wall of slider (7) constitutes position circle die cavity (3) jointly, and molten plastics enter into through each runner (4) and runner (5) in position circle die cavity (3).

2. The injection mold of the self-adaptive clamp spring positioning ring according to claim 1, wherein two sides of the inner wall of the second cavity (11) are provided with two arc-shaped convex edges (111), the four arc-shaped convex edges (111) are symmetrically arranged in two rows and two columns and are arranged in a left-right manner, and one ends of the four arc-shaped convex edges (111) close to the middle part of the inner wall of the second cavity (11) are provided with notches (1111);

the inner wall of the first cavity (21) is provided with two semicircular convex edges (211), the middle part of each semicircular convex edge (211) is provided with an arc-shaped first groove (2111), the center of each first groove (2111) is provided with a convex block (2112), and the convex blocks (2112) on the two semicircular convex edges (211) respectively extend outwards to the upper surface and the lower surface of the first cavity (21);

when the die is closed, the semicircular convex edge (211) is connected with the arc-shaped convex edge (111), and one side surface of the arc-shaped convex edge (111), one side surface of the semicircular convex edge (211) and one side surface of the convex block (2112) are tightly attached to the side wall of the sliding block (7).

3. The injection mold of the self-adaptive clamp spring positioning ring according to claim 2, wherein a circular second groove (31) is formed in the middle of the positioning ring mold cavity (3), and the second groove (31) is tightly attached to one of the semicircular convex edges (211).

4. The injection mold of the self-adaptive clamp spring positioning ring according to claim 3, wherein a positioning strip (212) is further connected to the inner side of the other semicircular convex edge (211), the surface of the positioning strip (212) and the groove bottom of the first groove (2111) are located on the same plane, and two end faces of the positioning strip (212) are made into inclined planes (2121).

5. The injection mold of the self-adaptive clamp spring positioning ring according to claim 1, characterized in that a channel (12) is formed in the movable mold (1) in a penetrating manner, and an opening at one end of the channel (12) is located in the middle of the second cavity (11).