CN217346477U

CN217346477U - A mould for producing planetary gear

Info

Publication number: CN217346477U
Application number: CN202221255749.7U
Authority: CN
Inventors: 樊晔
Original assignee: Huzhou Jinding Precision Technology Co ltd
Current assignee: Huzhou Jinding Precision Technology Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-09-02
Anticipated expiration: 2032-05-24

Abstract

The utility model belongs to the technical field of the planetary gear technique and specifically relates to a mould for producing planetary gear, include: the end surface of the upper die holder is provided with an injection molding port in a penetrating way; the die holder, the top of die holder has a shaping groove, and the bottom of die holder has an installation cavity, the inboard bottom fixed mounting of installation cavity has a guide pillar, the utility model discloses in through the portable mold core from top to bottom that sets up, the rotatable handle of user makes the pivot rotate after the completion of moulding plastics, and the epaxial sleeve pipe drive socket that rotates this moment moves down for the mold core is deviate from in the fashioned gear, after the mold core deviates from the preset distance, the flank of socket both sides is two sets of butt pieces of butt respectively and rotates, thereby make the ejector pin shift up the gear with the shaping inslot ejecting, the operation is comparatively simple, and the ejecting smooth nature of promotion that can be great, solved among the prior art because the fixed difficult problem of the drawing of patterns that leads to of mold core.

Description

A mould for producing planetary gear

Technical Field

The utility model relates to a planetary gear technical field especially relates to a mould for producing planetary gear.

Background

Planetary gears are gear systems whose axes of rotation follow the axis of the carrier around the other gears, in addition to being able to rotate around their own axis of rotation like a fixed axis gear. Rotation about its own axis is called "rotation", and rotation about the other gear axis is called "revolution", just like a planet in the solar system, and hence its name.

Carry out injection moulding to it through needing the mould at planetary gear's in-process of producing, and because planetary gear's middle part is owing to there being a cavity hole, consequently need set up a mold core in the inboard of die holder, get the most fixed mounting of mold core among the prior art and inboard in the shaping inslot of die holder, the mold core has increased the degree of difficulty of planetary gear drawing of patterns after cooling shaping to influence machining efficiency, based on this, we propose a mould for producing planetary gear.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a mold for producing a planetary gear.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing a mold for producing a planetary gear, comprising:

the end surface of the upper die holder is provided with an injection molding port in a penetrating way;

the die comprises a lower die holder, a die core and a driving mechanism, wherein the top of the lower die holder is provided with a forming groove, the bottom of the lower die holder is provided with an installation cavity, the bottom of the inner side of the installation cavity is fixedly provided with a guide pillar, the top of the guide pillar is inserted into a socket, the top of the socket is fixedly provided with a die core inserted into the forming groove, the outer side of the guide pillar is sleeved with a spring A, the spring A is positioned between the installation cavity and the socket, and the lower die holder is provided with the driving mechanism for driving the socket to move up and down;

and the ejection mechanism is positioned on the inner side of the mounting cavity and used for ejecting the gear in the molding groove.

Preferably, the driving mechanism comprises a rotating shaft which is rotatably connected to the inner side of the installation cavity, one end of the rotating shaft penetrates through the lower die holder and is fixedly connected with the handle, a sleeve is fixedly installed on the outer side of the rotating shaft, and a guide piece which is sleeved on the inner side of the sleeve is arranged on the outer side of the plug socket.

Preferably, the guide member is a pin shaft, the outer side of the pin shaft is rotatably connected with a roller, and the roller is slidably connected to the inner side of the sleeve.

Preferably, the ejection mechanisms are arranged in two groups, and the two groups of ejection mechanisms are separated by one hundred eighty degrees along the plug socket.

Preferably, the ejection mechanism comprises an ejector rod, the top of the ejector rod can extend to the inner side of the forming groove and is located on the same plane with the bottom of the forming groove, a connecting seat is fixedly mounted at the bottom of the ejector rod, and a spring B is arranged between the bottom of the connecting seat and the mounting cavity, wherein the spring B is arranged between the bottom of the connecting seat and the mounting cavity

The inboard of installation cavity is rotated through the axle piece and is connected with the butt piece, the side of connecting seat is provided with the incision that is used for holding butt piece one end, the both sides of bayonet socket all have the flank that is used for promoting another tip of butt piece.

Preferably, the bottom of the lower die holder is provided with a bottom plate through a bolt, the mounting cavity consists of the bottom plate and a groove located at the bottom of the lower die holder, the guide post is fixedly connected with the bottom plate, and the bottoms of the spring A and the spring B are abutted to the bottom plate.

The utility model provides a mould for producing planetary gear, beneficial effect lies in: the utility model discloses in through the portable mold core from top to bottom that sets up, the rotatable handle of user makes the pivot rotate after the completion of moulding plastics, the epaxial sleeve pipe drive socket that rotates this moment moves down, make the mold core deviate from the fashioned gear, after the mold core deviates from the preset value distance, the flank of socket both sides is two sets of piece rotations of butt respectively, other end through the piece promotes the connecting seat rebound, thereby make the ejector pin shift up carry out ejecting with the gear of shaping inslot, the operation is comparatively simple, and the ejecting smooth nature of promotion that can be great, the problem of the fixed drawing of patterns difficulty that leads to of the mold core among the prior art has been solved.

Drawings

Fig. 1 is a schematic structural view of a mold for producing a planetary gear according to the present invention;

fig. 2 is a schematic structural view of a top mechanism of a mold for producing a planetary gear according to the present invention;

fig. 3 is a schematic structural view of a driving mechanism of a mold for producing a planetary gear according to the present invention.

In the figure: 1. an upper die holder; 11. an injection molding port; 2. a lower die holder; 21. forming a groove; 22. a mounting cavity; 23. a guide post; 24. a socket; 25. a mold core; 26. a spring A; 27. a side wing; 3. a drive mechanism; 31. a rotating shaft; 32. a handle; 33. a sleeve; 34. a guide member; 4. an ejection mechanism; 41. a top rod; 42. a connecting seat; 43. a spring B; 44. a butting block; 45. cutting; 5. a base plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, a mold for producing a planetary gear, comprising:

an injection molding port 11 is arranged on the end surface of the upper die holder 1 in a penetrating manner;

the die comprises a lower die holder 2, wherein the top of the lower die holder 2 is provided with a forming groove 21, the bottom of the lower die holder 2 is provided with a mounting cavity 22, the bottom of the inner side of the mounting cavity 22 is fixedly provided with a guide pillar 23, the top of the guide pillar 23 is inserted with an inserting seat 24, the top of the inserting seat 24 is fixedly provided with a die core 25 inserted into the forming groove 21, the outer side of the guide pillar 23 is sleeved with a spring A26, a spring A26 is positioned between the mounting cavity 22 and the inserting seat 24, and the lower die holder 2 is provided with a driving mechanism 3 for driving the inserting seat 24 to move up and down;

and the ejection mechanism 4 is positioned inside the mounting cavity 22 and is used for ejecting the gear in the molding groove 21.

Further, the driving mechanism 3 includes a rotating shaft 31 rotatably connected to the inner side of the mounting cavity 22, one end of the rotating shaft 31 penetrates through the lower die holder 2 and is fixedly connected with a handle 32, a sleeve 33 is fixedly mounted on the outer side of the rotating shaft 31, and a guide 34 sleeved on the inner side of the sleeve 33 is arranged on the outer side of the socket 24.

Wherein, the guide piece 34 is a round pin axle, and the outside of round pin axle rotates and is connected with the gyro wheel, and gyro wheel sliding connection is in the inboard of sleeve pipe 33, can reduce the rotatory frictional force between the surplus sleeve pipe 33 of bayonet socket 24 through the gyro wheel that sets up.

That is, the ejection mechanisms 4 are provided in two sets, and the two sets of ejection mechanisms 4 are spaced one hundred eighty degrees apart along the receptacle 24.

In more detail, the ejection mechanism 4 includes a top rod 41, the top of the top rod 41 can extend to the inner side of the forming groove 21 and is located on the same plane as the bottom of the forming groove 21, a connecting seat 42 is fixedly installed at the bottom of the top rod 41, and a spring B43 is arranged between the bottom of the connecting seat 42 and the installation cavity 22, wherein the spring B43 is arranged between the bottom of the connecting seat 42 and the installation cavity 22

The inner side of the mounting cavity 22 is rotatably connected with an abutting block 44 through a shaft, the side end of the connecting seat 42 is provided with a notch 45 for accommodating one end part of the abutting block 44, and both sides of the inserting seat 24 are provided with lateral wings 27 for pushing the other end part of the abutting block 44.

In order to overhaul and replace the parts in the installation cavity 22, the bottom plate 5 is installed at the bottom of the lower die holder 2 through the bolts, the installation cavity 22 consists of the bottom plate 5 and a groove located at the bottom of the lower die holder 2, the guide pillar 23 is fixedly connected with the bottom plate 5, the bottoms of the spring a26 and the spring B43 are all abutted to the bottom plate 5, and certainly, in order to fix the spring a26 and the spring B43, the tops of the spring a26 and the spring B43 can be fixed with the plug socket 24 and the connecting seat 42 respectively.

The utility model discloses in through the movable mould core 25 from top to bottom that sets up, the rotatable handle 32 of user makes pivot 31 rotate after the completion of moulding plastics, the epaxial sleeve pipe 33 drive plug socket 24 of pivot 31 moves down this moment, make mould core 25 deviate from in the fashioned gear, after mould core 25 deviates from the preset value distance, the flank 27 of plug socket 24 both sides is the rotation of two sets of butt piece 44 of butt respectively, other end through butt piece 44 promotes connecting seat 42 rebound, thereby make ejector pin 41 shift up carry out ejecting with the gear in the shaping groove 21, the operation is comparatively simple, and the ejecting smoothness of promotion that can be great, the problem of because mould core 25 is fixed to lead to the drawing of patterns difficulty among the prior art has been solved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A mold for producing a planetary gear, comprising:

an injection molding opening (11) is arranged on the end surface of the upper die holder (1) in a penetrating manner;

the die comprises a lower die holder (2), wherein a forming groove (21) is formed in the top of the lower die holder (2), a mounting cavity (22) is formed in the bottom of the lower die holder (2), a guide pillar (23) is fixedly mounted at the bottom of the inner side of the mounting cavity (22), a plug socket (24) is inserted into the top of the guide pillar (23), a die core (25) which is inserted into the inner side of the forming groove (21) is fixedly mounted at the top of the plug socket (24), a spring A (26) is sleeved on the outer side of the guide pillar (23), the spring A (26) is located between the mounting cavity (22) and the plug socket (24), and a driving mechanism (3) which is used for driving the plug socket (24) to move up and down is arranged on the lower die holder (2);

and the ejection mechanism (4) is positioned on the inner side of the mounting cavity (22) and is used for ejecting the gear in the molding groove (21).

2. A mold for producing a planetary gear according to claim 1, characterized in that: actuating mechanism (3) including rotate connect in pivot (31) of installation cavity (22) inboard, the one end of pivot (31) is run through die holder (2) and fixedly connected with handle (32), the outside fixed mounting of pivot (31) has sleeve pipe (33), the outside of bayonet socket (24) be provided with the cover establish with guide (34) of sleeve pipe (33) inboard.

3. A mold for producing a planetary gear according to claim 2, characterized in that: the guide piece (34) is a pin shaft, the outer side of the pin shaft is rotatably connected with a roller, and the roller is connected to the inner side of the sleeve (33) in a sliding mode.

4. A mold for producing a planetary gear according to claim 1, characterized in that: two groups of ejection mechanisms (4) are arranged, and the two groups of ejection mechanisms (4) are separated by one hundred eighty degrees along the plug socket (24).

5. A mold for producing a planetary gear according to claim 4, characterized in that: the ejection mechanism (4) comprises an ejector rod (41), the top of the ejector rod (41) can extend to the inner side of the forming groove (21) and is located on the same plane with the bottom of the forming groove (21), a connecting seat (42) is fixedly mounted at the bottom of the ejector rod (41), a spring B (43) is arranged between the bottom of the connecting seat (42) and the mounting cavity (22), and the ejection mechanism is characterized in that

The inner side of the mounting cavity (22) is rotatably connected with a butt-joint block (44) through a shaft piece, a notch (45) used for accommodating one end of the butt-joint block (44) is formed in the side end of the connecting seat (42), and lateral wings (27) used for pushing the other end of the butt-joint block (44) are arranged on two sides of the inserting seat (24).

6. A mold for producing a planetary gear according to claim 5, characterized in that: the bottom of the lower die holder (2) is provided with a bottom plate (5) through a bolt, the mounting cavity (22) is composed of the bottom plate (5) and a groove located at the bottom of the lower die holder (2), the guide post (23) is fixedly connected with the bottom plate (5), and the bottoms of the spring A (26) and the spring B (43) are abutted to the bottom plate (5).