CN215661513U

CN215661513U - Spiral bevel gear mould is from type structure

Info

Publication number: CN215661513U
Application number: CN202121224557.5U
Authority: CN
Inventors: 曹文奇; 马瑞伍; 左雪敬
Original assignee: Shenzhen Mim Technology Co ltd
Current assignee: Shenzhen Mim Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-01-28
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a spiral bevel gear mold release structure, which comprises a front mold core fixing plate, wherein the bottom of the front mold core fixing plate is provided with a front mold core II, the surface of the front mold core II is provided with a spiral outer circle chute, the bottom of the front mold core II is provided with a front mold core, the top end surface of the front mold core is fixed with the front mold core I, the front mold core I is movably sleeved on the outer surface of the front mold core II, the surface of the front mold core I is provided with an arc-shaped groove, and a front mold core pin penetrates through the inner side of the arc-shaped groove; the cost is greatly reduced due to batch production; the design freedom of the product is improved, and a complex structure can be designed on a part; the stability and consistency of the product are improved and the precision of the product is ensured by the mould production; through the hidden thimble of design, when not using, can not influence normal processing, and in later stage use, can carry on spacingly with ejecting height, avoid appearing the phenomenon that ejecting position is not high.

Description

Spiral bevel gear mould is from type structure

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to a release structure of a spiral bevel gear mold.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, dies are tools used to make shaped articles, which are made of various parts, and different dies are made of different parts, and are also used in the processing of spiral bevel teeth.

What metal spiral bevel gear adopted at present is that machining's method preparation, and is inefficient, and board is with high costs, and simultaneously in the drawing of patterns of later stage, the preceding mould tooth shape part to spiral bevel gear causes wearing and tearing easily to lead to the product precision to reduce, consequently there is great limitation in the in-service use, has the space that can improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a release structure of a spiral bevel gear mold, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a spiral bevel gear mould is from type structure, includes preceding mold core fixed plate, the bottom of preceding mold core fixed plate is provided with preceding mold core two, the surface of preceding mold core two is seted up and is spiral helicine excircle spout, the bottom of preceding mold core two is provided with preceding mold core, be fixed with preceding mold core one on the top face of preceding mold core, the surface of preceding mold core two is established to preceding mold core one movable sleeve, just the arc wall has been seted up on the surface of preceding mold core one, and the inboard of this arc wall runs through there is preceding mold core pin, preceding mold core pin screw in the excircle spout with two spacing connections of preceding mold core, the spiral bevel gear has been inserted to the inside of preceding mold core, the top of spiral bevel gear run through to the inside of preceding mold core one, just spiral bevel gear bottom with the bottom face meshing of preceding mold core two is connected.

Preferably, the top end surface of the spiral bevel gear and the bottom end surface of the front mold core II are both provided with bevel gears, and the intervals of the tooth-shaped spiral lines of the bevel gears are equal.

Preferably, the bottom of the front mold core is also provided with a rear mold core, and the bottom end of the spiral bevel gear is placed inside the rear mold core.

Preferably, a through hole is reserved on the bottom end face of the rear mold core, an ejector pin is arranged in the through hole, and the ejector pin penetrates through the through hole and is attached to the bottom end face of the spiral bevel gear.

Preferably, the springs are symmetrically arranged on two sides of the bottom end of the front mold core fixing plate, the bottom end of each spring is in extrusion fit with the top end of the front mold core, and the top end face of the front mold core II is in plane rotation connection with the bottom end of the front mold core fixing plate.

Preferably, the inner wall of the through hole is further provided with a side groove, two sides of the bottom of the thimble are symmetrically fixed with a limiting lug, and the limiting lug is slidably connected with the inner side of the side groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. the cost is greatly reduced due to batch production;

2. the design freedom of the product is improved, and a complex structure can be designed on a part;

3. the stability and consistency of the product are improved and the precision of the product is ensured by the mould production;

4. through the hidden thimble of design, when not using, can not influence normal processing, and in later stage use, can carry on spacingly with ejecting height, avoid appearing the phenomenon that ejecting position is not high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the thimble according to the present invention.

In the figure: 1. a front mold core fixing plate; 2. a spring; 3. a front mold core pin; 4. a front mold core; 5. a rear mold core; 6. spiral bevel gear; 7. a first front mold core; 8. a second front mold core; 9. an excircle chute; 10. a limiting bump; 11. a thimble; 12. and a side groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a spiral bevel gear mold release structure comprises a front mold core fixing plate 1, a front mold core II 8 is arranged at the bottom of the front mold core fixing plate 1, a spiral excircle chute 9 is arranged on the surface of the front mold core II 8, a front mold core 4 is arranged at the bottom of the front mold core II 8, a front mold core I7 is fixed on the top end surface of the front mold core 4, the front mold core I7 is movably sleeved on the outer surface of the front mold core II 8, an arc-shaped groove is arranged on the surface of the front mold core I7, a front mold core pin 3 penetrates through the inner side of the arc-shaped groove, the front mold core pin 3 is screwed into the excircle chute 9 and is connected with a front mold core II 8 in a limiting way, a spiral bevel gear 6 is inserted into the front mold core 4, the top end of the spiral bevel gear 6 penetrates into the front mold core I7, and the bottom end of the spiral bevel gear 6 is meshed with the bottom end face of the front mold core II 8, so that the stability and consistency of the product are improved and the precision of the product is ensured.

In this embodiment, preferably, the top end surface of the spiral bevel gear 6 and the bottom end surface of the front mold core two 8 are both formed with bevel gears, and the pitch of the tooth-shaped spiral lines of the bevel gears is equal.

In this embodiment, preferably, the bottom of the front mold core 4 is further provided with a rear mold core 5, and the bottom end of the spiral bevel gear 6 is placed inside the rear mold core 5.

In this embodiment, preferably, a through hole is reserved on the bottom end surface of the rear mold core 5, an ejector pin 11 is arranged inside the through hole, the designed hidden ejector pin 11 does not affect normal processing when not in use, and can limit the ejection height when in later use, so as to avoid the phenomenon of low ejection position, and the ejector pin 11 penetrates through the through hole and is attached to the bottom end surface of the spiral bevel gear 6.

In this embodiment, preferably, the springs 2 are symmetrically installed on two sides of the bottom end of the front mold core fixing plate 1, the bottom ends of the springs 2 and the top end surface of the front mold core 4 are in an extrusion fit state, and the top end surface of the front mold core two 8 and the bottom end surface of the front mold core fixing plate 1 are in plane rotation connection.

In this embodiment, preferably, a side groove 12 is further formed in an inner wall of the through hole, the limiting protrusions 10 are symmetrically fixed to two sides of the bottom of the thimble 11, and the limiting protrusions 10 are slidably connected to an inner side of the side groove 12.

The working principle and the using process of the utility model are as follows: when the utility model is used, after the product injection molding is finished, a front mold core fixing plate 1 provides power for a front mold core II 8 under the action of a spring 2, a fixing pin 3 in a front mold core I7 spirally slides in an excircle chute 9 of the front mold core II 8, the front mold core I7 is fixed on a front mold core 4, so that the front mold core II 8 is driven to rotate along a spiral line of the excircle chute 9 under the action of rotating torque, a tooth-shaped spiral line on a spiral bevel gear 6 is consistent with the pitch of the tooth-shaped spiral line on the outer side of the bottom of the front mold core II 8, when the front mold core II 8 rotates and moves backwards, the tooth-shaped part of the front mold core of the spiral bevel gear 6 is separated from the front mold core II 8, so as to realize the demolding of the spiral bevel gear 6, finally, the rear mold core 5 is separated from the front mold core 4, the spiral bevel gear 6 is ejected by an ejector pin, the whole process of mold opening is finished, in the demolding, limiting lugs 10 on two sides of the ejector pin 11 move in the side grooves 12, when the limiting convex block 10 moves to the top position of the side groove 12, the height of the spiral bevel gear 6 reaches the designated position, and then the spiral bevel gear 6 is taken out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spiral bevel gear mould is from type structure which characterized in that: the mold comprises a front mold core fixing plate (1), wherein a front mold core II (8) is arranged at the bottom of the front mold core fixing plate (1), a spiral excircle chute (9) is formed in the surface of the front mold core II (8), a front mold core (4) is arranged at the bottom of the front mold core II (8), a front mold core I (7) is fixed on the top end face of the front mold core (4), the front mold core I (7) is movably sleeved on the outer surface of the front mold core II (8), an arc-shaped groove is formed in the surface of the front mold core I (7), a front mold core pin (3) penetrates through the inner side of the arc-shaped groove, the front mold core pin (3) is screwed into the excircle chute (9) and is in limited connection with the front mold core II (8), a spiral umbrella tooth (6) is inserted into the front mold core (4), and the top end of the spiral umbrella tooth (6) penetrates through the inner part of the front mold core I (7), and the bottom end of the spiral bevel gear (6) is meshed and connected with the bottom end surface of the front mold core II (8).

2. The mold release structure for spiral bevel gears of claim 1, wherein: the top end surface of the spiral bevel gear (6) and the bottom end surface of the front mold core II (8) are both provided with bevel gears, and the intervals of tooth-shaped spiral lines of the bevel gears are equal.

3. The mold release structure for spiral bevel gears of claim 1, wherein: the bottom of the front mold core (4) is also provided with a rear mold core (5), and the bottom end of the spiral bevel gear (6) is arranged inside the rear mold core (5).

4. The mold release structure for spiral bevel gears of claim 3, wherein: a through hole is reserved on the bottom end face of the rear mold core (5), an ejector pin (11) is arranged in the through hole, and the ejector pin (11) penetrates through the through hole and is attached to the bottom end face of the spiral bevel gear (6).

5. The mold release structure for spiral bevel gears of claim 1, wherein: spring (2) are installed to the bottom bilateral symmetry of preceding mold core fixed plate (1), the bottom of spring (2) with the top of preceding mold core (4) is personally submitted the extrusion laminating form, the top face of preceding mold core two (8) with the bottom of preceding mold core fixed plate (1) is personally submitted the plane rotation and is described and is connected.

6. The mold release structure for spiral bevel gears of claim 4, wherein: the inner wall of the through hole is further provided with a side groove (12), limiting lugs (10) are symmetrically fixed to two sides of the bottom of the ejector pin (11), and the limiting lugs (10) are in sliding connection with the inner side of the side groove (12).