CN113134944A

CN113134944A - Button injection mold

Info

Publication number: CN113134944A
Application number: CN202110568154.0A
Authority: CN
Inventors: 田志勇; 陈忠; 柯昌学; 柯尊南; 王化强; 张丙勇; 张海; 卓容业; 柯尊柏
Original assignee: Zhejiang Wanchao Electrical Co ltd
Current assignee: Zhejiang Wanchao Electrical Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-07-20

Abstract

The invention relates to a button injection mold, which comprises an upper mold plate A, an upper mold core, a lower mold plate B and a lower mold core, wherein an injection molding cavity is formed between the upper mold core and the lower mold core, a bottom plate is arranged below the lower mold plate B, an ejection space is arranged between the lower mold plate B and the bottom plate, an ejector plate is arranged in the ejection space, an inclined ejector mechanism is arranged on the ejector plate, the inclined ejector mechanism comprises an inclined ejector seat and an inclined ejector rod, the inclined ejector seat is fixedly connected with the ejector plate, an inclined groove is arranged on the inclined ejector seat, the lower end of the inclined ejector rod can be slidably matched on the inclined groove, a shell inner cavity forming mold is arranged on the lower mold core, an inclined conduction channel is arranged between one side of the shell inner cavity forming mold and the lower mold core, the inclined ejector rod is in clearance fit on the inclined conduction channel, the upper end of the inclined ejector rod comprises a reverse buckling part, the reverse buckling part is attached to the upper end of the side surface of the shell inner cavity forming mold, the invention enables the button shell with the back-off cavity to be demoulded smoothly.

Description

Button injection mold

Technical Field

The invention relates to the technical field of molds, in particular to a button injection mold.

Background

In the trade of automobile manufacturing, there are a lot of automobile parts all to use the mould to carry out the shaping, and comparatively complicated automobile parts then need be provided with the core pulling or the ejector pin of various penetration mold benevolence in the mould, just can once accomplish the shaping, wherein like the button casing of car glass-frame riser switch assembly, including a back-off chamber in its inside cavity of button casing, thereby just can lead to the back-off portion that the shaping goes out the back-off chamber not to deviate from in the button well, lead to button casing to damage easily if drawing of patterns is carried out button casing by force.

Disclosure of Invention

The invention provides a button injection mold, wherein a back-off part on an inclined ejector rod of the button injection mold can be easily separated from a molded button shell, so that smooth demolding of the button shell is ensured, and the problems existing in the use process in the prior art are solved.

The technical scheme of the invention is realized as follows: a button injection mold comprises an upper mold plate A and a lower mold plate B, wherein an upper mold core is fixedly arranged on the upper mold plate A, a lower mold core is fixedly arranged on the lower mold plate B, an injection molding cavity is formed between the upper mold core and the lower mold core, a bottom plate is arranged below the lower mold plate B, an ejection space is arranged between the lower mold plate B and the bottom plate, a partition plate for forming the ejection space is arranged between the lower mold plate B and the bottom plate at intervals, an ejector plate is arranged in the ejection space, an inclined ejector mechanism is arranged on the ejector plate and comprises an inclined ejector seat and an inclined ejector rod, the inclined ejector seat is fixedly connected with the ejector plate, an inclined groove is arranged on the inclined ejector seat, the lower end of the inclined ejector rod can be matched on the inclined groove in a sliding manner, a shell inner cavity forming mold is arranged on the lower mold core, an inclined conduction channel is arranged between one side of the shell inner cavity forming mold and the lower mold core, the inclined ejector rod is in clearance fit with the inclined guide channel, the upper end of the inclined ejector rod comprises a back-off part, and the back-off part is attached to the upper end of the side face of the shell inner cavity forming die.

By adopting the technical scheme, when the back-off part is attached to the upper end of the side surface of the shell inner cavity forming die, the shape of the inner cavity of the button shell is formed, after the button shell is formed, the upper die A plate and the lower die B plate are opened, then the ejector plate drives the inclined ejector seat to move upwards, the inclined ejector seat upwards drives the inclined ejector rod to move upwards on the inclined conduction channel, when the inclined ejector rod moves upwards, the lower end of the inclined ejector rod slides correspondingly on the inclined groove of the inclined ejector seat, and the shell inner cavity forming die is fixed, so that the button shell is ejected out when the back-off part on the inclined ejector rod moves upwards, and the back-off part can automatically withdraw from the back-off cavity in the inner cavity of the button shell, so that the button shell is smoothly demolded.

The invention is further configured to: the inclined ejector rod is provided with a limiting through groove, the limiting through groove is parallel to the inclined through groove, the lower die core is fixedly provided with a limiting rod, and the limiting rod penetrates through the limiting through groove.

By adopting the technical scheme, the limiting rod fixed on the lower die core penetrates through the limiting through groove on the oblique ejector rod, so that the oblique upward moving stroke of the oblique ejector rod can be limited, and the oblique ejector rod is prevented from being excessively ejected outwards to increase unnecessary stroke.

The invention is further configured to: the lower die B plate is connected with a side limiting block through a screw, the oblique ejector rod is provided with a side limiting groove, and the side limiting block is matched with the side limiting groove.

Through adopting above-mentioned technical scheme, the cooperation of side stopper can prevent that the ejector pin from producing at the removal in-process and rocking on the spacing fluting of side, strengthens the stability of ejector pin structure to one side.

The invention is further configured to: the ejector pin plate is provided with a plurality of ejector pins, and the shell inner cavity forming die is provided with straight through holes for the insertion of the ejector pins.

By adopting the technical scheme, the upper die plate A and the lower die plate B are opened, when the ejector plate moves upwards, the ejector pin also passes through the straight through hole to move upwards, and the ejector pin is matched with the inclined ejector rod to eject the button shell more easily.

The invention is further configured to: the bottom plate is provided with guide pillars on two sides of the ejector plate, the guide pillars penetrate through the ejector plate and are connected to the lower die B plate, the ejector plate is connected with a guide sleeve matched with the guide pillars, and the ejector plate can move up and down on the guide pillars through the guide sleeve.

Through adopting above-mentioned technical scheme, the thimble board is reciprocating's in-process, cooperatees with the guide pillar through the guide pin bushing, can strengthen the thimble board and reciprocate the stability.

The invention is further configured to: the four corners of the ejector plate are fixedly connected with abutting guide pillars, the lower die plate B is provided with matching guide holes corresponding to the abutting guide pillars in a penetrating mode, and the abutting guide pillars can be matched with the matching guide holes in a vertically movable mode.

By adopting the technical scheme, when the ejector plate moves upwards, the ejector plate can drive the abutting guide post to penetrate out of the matching guide hole upwards, so that the situation that an ejector pin and an inclined ejector rod on the ejector plate are damaged by collision of the upper die A plate due to failure of timely resetting of the ejector plate when the upper die A plate and the lower die B plate are closed can be prevented, the upper die A plate can firstly abut against the abutting guide post through the abutting guide post, and the ejector plate is pushed downwards by the upper die A plate through the abutting guide post, so that the structure of the invention is protected.

The invention is further configured to: go up equal fixedly connected with support rod on the left and right sides of mould A board, it has the confession to support to hold the pole and pierce through decurrent side opening to open on the side of lower mould B board, it has the confession to support the roof opening that the lower extreme that holds the pole got into to open on the thimble board, detachable is connected with the kicking block on the space bar, the kicking block sets up on roof open-ended rear side, hinged joint has the dwang on the side of lower mould B board, the lower extreme of dwang supports and holds on the thimble board, the dwang lower extreme be located roof open-ended front side.

Through adopting above-mentioned technical scheme, when carrying out the compound die at last mould A board and lower mould B board, support the side opening that the pole passed lower mould B board and get into the ejector plate opening, support the pole when getting into the ejector plate opening, support the front side of holding the pole just can with the lower extreme counterbalance of dwang, if the ejector plate is in the ejecting state that makes progress this moment, support the pole and just can drive the dwang and make the ejector plate force to reset downwards, thimble and oblique ejector pin structure can be protected to this structure.

The invention is further configured to: the lower mould core is provided with a plurality of side loose cores used for being inserted into an injection mould cavity from the side, a lower mould B plate is provided with a slide seat connected with the side loose cores, the lower mould B plate is provided with a sliding groove for the slide seat to be close to or far away from the injection mould cavity, two sides of the slide seat are provided with limiting sliding edges, the lower mould B plate is provided with a pressing strip above the limiting sliding edges, an upper mould A plate is fixedly connected with an inclined guide pillar, the inclined guide pillar inclines towards one side far away from the injection mould cavity, and the slide seat is provided with an inclined guide hole matched with the inclined guide pillar.

Through adopting above-mentioned technical scheme, when going on the compound die at last mould A board and lower mould B board, oblique guide pillar enters into the oblique guide hole on the slide seat to just promote the slide seat and move towards the one side of the die cavity of moulding plastics in the sliding tray, make the side loose core insert on the die cavity of moulding plastics, and when going on the die sinking at last mould A board and lower mould B board, oblique guide pillar shifts out oblique guide hole, it keeps away from the die cavity of moulding plastics and moves to drive the slide seat in the sliding tray, thereby just make the side loose core shift out the die cavity of moulding plastics, the work of the side loose core of this structure messenger and the work of the die of opening and shutting are unanimous.

The invention is further configured to: the slide seat is detachably connected with an inclined wear-resistant block on one surface back to the injection molding cavity, the inclined wear-resistant block is provided with an inclined positioning surface, and the upper die plate A is provided with an inclined positioning block which is used for abutting against the inclined positioning surface.

By adopting the technical scheme, the inclined positioning block is abutted against the inclined wear-resistant block when the upper die plate A and the lower die plate B are assembled, so that the slide seat is ensured to drive the side core-pulling to move in place.

The invention is further configured to: and a positioning groove is formed in the lower part of the lower die B plate corresponding to the inclined positioning block, and the lower end of the inclined positioning block is inserted into the positioning groove when the upper die A plate and the lower die B plate are closed.

Through adopting above-mentioned technical scheme, the structural strength of slope locating piece when holding the wear-resisting piece of slope can be strengthened to the constant head tank.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an injection molded button housing of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of the present invention with the upper mold plate A removed;

FIG. 6 is a schematic structural view of an upper mold plate A of the present invention;

FIG. 7 is a schematic structural view of a lower mold core, a side core and a thimble according to the present invention;

FIG. 8 is a schematic structural view of a lower mold core, a shell cavity forming mold and an inclined ejector rod according to the present invention;

FIG. 9 is a schematic structural view of the bottom plate, the ejector plate and the guide posts in the present invention;

FIG. 10 is a schematic structural view of the inclined ejector seat, the inclined ejector rod, the shell cavity forming die and the ejector pin of the present invention;

FIG. 11 is a schematic view of a button housing formed in accordance with the present invention;

fig. 12 is a schematic structural view of the push button housing of the present invention for performing ejection and demolding.

In the figure: 1. an upper die A plate; 2. a lower die B plate; 3. an upper die core; 4. a lower die core; 5. injection molding a cavity; 6. a base plate; 7. ejecting the space; 8. a partition plate; 9. an ejector plate; 10. a slanted ejecting seat; 11. an oblique ejector rod; 12. a chute; 13. forming a mold in the shell inner cavity; 14. a slant conduction channel; 15. a back-off part; 16. a limiting through groove; 17. a limiting rod; 18. a side limiting block; 19. limiting and slotting the side surface; 20. a thimble; 21. a straight through hole; 22. a guide post; 23. a guide sleeve; 24. supporting the guide post; 25. matching with the guide hole; 26. a support rod; 27. opening the side; 28. a top plate opening; 29. a top block; 30. rotating the rod; 31. side core pulling; 32. a slide seat; 33. a sliding groove; 34. limiting and sliding; 35. layering; 36. an inclined guide post; 37. oblique guide holes; 38. inclining the wear-resistant block; 39. inclining the positioning surface; 40. inclining the positioning block; 41. positioning a groove; 42. a button housing; 43. a cavity; 431. and (4) a back-off cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 12 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 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.

Example (b):

as shown in fig. 2 to 12, the invention discloses a button injection mold, which comprises an upper mold plate a 1 and a lower mold plate B2, wherein an upper mold core 3 is fixedly arranged on the upper mold plate a 1, a lower mold core 4 is fixedly arranged on the lower mold plate B2, an injection mold cavity 5 is formed between the upper mold core 3 and the lower mold core 4, a bottom plate 6 is arranged below the lower mold plate B2, an ejection space 7 is formed between the lower mold plate B2 and the bottom plate 6, a partition plate 8 for forming the ejection space 7 is arranged between the lower mold plate B2 and the bottom plate 6, an ejector plate 9 is arranged in the ejection space 7, an inclined ejector mechanism is arranged on the ejector plate 9, the inclined ejector mechanism comprises an inclined ejector seat 10 and an inclined ejector rod 11, the inclined ejector seat 10 is fixedly connected with the ejector plate 9, a chute 12 is arranged on the inclined ejector seat 10, the lower end of the inclined ejector rod 11 is slidably matched on the chute 12, the lower die core 4 is provided with a shell inner cavity forming die 13, an inclined conduction channel 14 is arranged between one side of the shell inner cavity forming die 13 and the lower die core 4, the inclined ejector rod 11 is in clearance fit with the inclined conduction channel 14, the upper end of the inclined ejector rod 11 comprises an inverted buckle part 15, the inverted buckle part 15 is attached to the upper end of the side surface of the shell inner cavity forming die 13, and when the inverted buckle part 15 is attached to the upper end of the side surface of the shell inner cavity forming die 13, the shape of a cavity 43 inside the button shell 42 is formed, so that the button shell 42 shown in fig. 1 is formed. After the button shell 42 is formed, the upper die plate a 1 and the lower die plate B2 are opened, then the ejector plate 9 drives the inclined ejector seat 10 to move upwards, the inclined ejector seat 10 drives the inclined ejector rod 11 to move upwards in an inclined conduction channel 14, when the inclined ejector rod 11 moves upwards in an inclined mode, the lower end of the inclined ejector rod 11 slides on the inclined groove 12 of the inclined ejector seat 10 correspondingly, the shell inner cavity forming die 13 is fixed, therefore, the button shell 42 is ejected when the back-off part 15 on the inclined ejector rod 11 moves upwards in an inclined mode, and the back-off part 15 can automatically withdraw from the back-off cavity 431 in the inner cavity 43 of the button shell 42 when the inclined ejector rod 11 moves upwards in an inclined mode, so that the button shell 42 can be demolded smoothly.

The inclined ejector rod 11 is provided with a limiting through groove 16, the limiting through groove 16 is parallel to the inclined through groove 14, the lower die core 4 is fixedly provided with a limiting rod 17, the limiting rod 17 penetrates through the limiting through groove 16, and the structure can limit the inclined upward movement stroke of the inclined ejector rod 11 and prevent the inclined ejector rod 11 from being excessively ejected outwards to increase unnecessary stroke.

In order to prevent the inclined ejector rod 11 from shaking in the process of moving in an inclined upward direction, the screw rod on the lower die B plate 2 is connected with a side limiting block 18, the inclined ejector rod 11 is provided with a side limiting open groove 19, and the side limiting block 18 is matched with the side limiting open groove 19, so that the structure can enhance the stability of the structure of the inclined ejector rod 11.

In addition, the ejector pin plate 9 is provided with a plurality of ejector pins 20, the shell cavity forming die 13 is provided with straight through holes 21 into which the ejector pins 20 are inserted, the upper die plate a 1 and the lower die plate B2 are opened, when the ejector pin plate 9 moves upwards, the ejector pins 20 also pass through the straight through holes 21 to move upwards, and the ejector pins 20 can be matched with the inclined ejector pins 11 to eject the button shell 42 more easily.

In order to enhance the up-and-down movement stability of the ejector plate 9, guide posts 22 are arranged on the two sides of the ejector plate 9 of the bottom plate 6, the guide posts 22 penetrate through the ejector plate 9 and are connected to the lower die B plate 2, a guide sleeve 23 matched with the guide posts 22 is connected to the ejector plate 9, and the ejector plate 9 can move up and down on the guide posts 22 through the guide sleeve 23.

In the invention, the four corners of the ejector plate 9 are fixedly connected with abutting guide posts 24, the lower die plate B2 is provided with matching guide holes 25 corresponding to the abutting guide posts 24 in a penetrating manner, the abutting guide posts 24 can be matched with the matching guide holes 25 in a vertically movable manner, when the ejector plate 9 moves upwards, the ejector plate 9 can drive the abutting guide posts 24 to penetrate out of the matching guide holes 25 upwards, so that the condition that the ejector pins 20 and the inclined ejector rods 11 on the ejector plate 9 are damaged by the upper die plate a 1 due to the fact that the ejector plate 9 cannot be reset in time when the upper die plate a 1 and the lower die plate B2 are closed is prevented, the upper die plate a 1 can abut against the abutting guide posts 24 firstly through the abutting guide posts 24, and the ejector plate a 1 abuts against the ejector plate 9 downwards through the abutting guide posts 24, so that the structure of the invention is protected.

Moreover, both the left side and the right side of the upper mold plate a 1 are fixedly connected with a supporting rod 26, the side of the lower mold plate B2 is provided with a side opening 27 through which the supporting rod 26 penetrates, the ejector plate 9 is provided with a top plate opening 28 through which the lower end of the supporting rod 26 enters, the partition plate 8 is detachably connected with an ejector block 29, the ejector block 29 is arranged on the rear side of the top plate opening 28, the side of the lower mold plate B2 is hinged with a rotating rod 30, the lower end of the rotating rod 30 abuts against the ejector plate 9, the lower end of the rotating rod 30 is positioned on the front side of the top plate opening 28, when the upper mold plate a 1 and the lower mold plate B2 are assembled, the supporting rod 26 penetrates through the side opening 27 of the lower mold plate B2 to enter the top plate opening 28, when the supporting rod 26 enters the top plate opening 28, the front side of the supporting rod 26 abuts against the lower end of the rotating rod 30, at this time, the ejector plate 9 is in an upward ejecting state, the support rod 26 drives the rotation rod 30 to force the thimble plate 9 to return downward, which protects the structure of the thimble 20 and the angle rod 11.

In the invention, the lower die core 4 is provided with a plurality of side core pulling cores 31 used for being inserted into the injection molding cavity 5 from the side, wherein the side core pulling cores 31 are matched with the upper die core 3, the lower die core 4, the shell inner cavity forming die 13 and the inverted buckling part 15 on the inclined ejector rod 11 to enable the injection molding cavity 5 to form the shape of the button shell 42, the side core pulling cores 31 need to be pulled out outwards after the button shell 42 is formed for demolding, so the lower die B plate 2 is provided with a slide seat 32 connected with the side core pulling cores 31, the lower die B plate 2 is provided with a sliding groove 33 for enabling the slide seat 32 to be close to or far away from the injection molding cavity 5, two sides of the slide seat 32 are provided with limiting sliding edges 34, the lower die B plate 2 is provided with a pressing strip 35 above the limiting sliding edges 34, the upper die A plate 1 is fixedly connected with an inclined guide pillar 36, the inclined guide pillar 36 inclines towards one side far away from the injection molding cavity 5, the slide seat 32 is provided with an inclined guide hole 37 used for being matched with the inclined guide pillar 36, when the upper die A plate 1 and the lower die B plate 2 are clamped, the inclined guide post 36 enters the inclined guide hole 37 on the slide seat 32, so that the slide seat 32 is pushed to move towards one side of the injection cavity 5 in the sliding groove 33, the side loose core 31 is inserted into the injection cavity 5, when the upper die A plate 1 and the lower die B plate 2 are clamped, the inclined guide post 36 moves out of the inclined guide hole 37, the slide seat 32 is driven to move away from the injection cavity 5 in the sliding groove 33, and the side loose core 31 moves out of the injection cavity 5.

The slide seat 32 is detachably connected with an inclined wear-resistant block 38 on one surface back to the injection molding cavity 5, the inclined wear-resistant block 38 is provided with an inclined positioning surface 39, the upper die plate a 1 is provided with an inclined positioning block 40 used for abutting against the inclined positioning surface 39, and the inclined positioning block 40 abuts against the inclined wear-resistant block 38 when the upper die plate a 1 and the lower die plate B2 are closed, so that the slide seat 32 is ensured to drive the side core-pulling 31 to move in place.

The lower die B plate 2 is provided with a positioning groove 41 below the inclined positioning block 40, the lower end of the inclined positioning block 40 is inserted into the positioning groove 41 when the upper die A plate 1 and the lower die B plate 2 are assembled, and the positioning groove 41 can enhance the structural strength of the inclined positioning block 40 when the inclined wear-resistant block 38 is abutted.

Meanwhile, the invention also points out terms such as: the terms "front," "back," "vertical," "horizontal," and the like, as used herein, are intended to refer to an orientation or positional relationship as shown in the drawings for convenience in describing the invention and in order to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a button injection mold, includes mould A board and lower mould B board, go up the fixed mould benevolence that is provided with on the mould A board, the fixed lower mould benevolence that is provided with on the lower mould B board, it moulds plastics the die cavity to go up to be formed with between mould benevolence and the lower mould benevolence, the below of lower mould B board is equipped with the bottom plate, ejecting space has between lower mould B board and the bottom plate, separate between lower mould B board and the bottom plate and have the space bar that is used for forming ejecting space, its characterized in that: the ejection mechanism comprises an inclined ejector seat and an inclined ejector rod, the inclined ejector seat is fixedly connected with the ejector plate, an inclined chute is arranged on the inclined ejector seat, the lower end of the inclined ejector rod can be slidably matched on the inclined chute, a shell inner cavity forming die is arranged on the lower die core, an inclined conduction channel is formed between one side of the shell inner cavity forming die and the lower die core, the inclined ejector rod is in clearance fit on the inclined conduction channel, the upper end of the inclined ejector rod comprises a back-off part, and the back-off part is attached to the upper end of the side face of the shell inner cavity forming die.

2. The button injection mold according to claim 1, wherein: the inclined ejector rod is provided with a limiting through groove, the limiting through groove is parallel to the inclined through groove, the lower die core is fixedly provided with a limiting rod, and the limiting rod penetrates through the limiting through groove.

3. The button injection mold according to claim 2, wherein: the lower die B plate is connected with a side limiting block through a screw, the oblique ejector rod is provided with a side limiting groove, and the side limiting block is matched with the side limiting groove.

4. The button injection mold according to claim 1, wherein: the ejector pin plate is provided with a plurality of ejector pins, and the shell inner cavity forming die is provided with straight through holes for the insertion of the ejector pins.

5. The button injection mold according to claim 1, wherein: the bottom plate is provided with guide pillars on two sides of the ejector plate, the guide pillars penetrate through the ejector plate and are connected to the lower die B plate, the ejector plate is connected with a guide sleeve matched with the guide pillars, and the ejector plate can move up and down on the guide pillars through the guide sleeve.

6. The button injection mold according to claim 5, wherein: the four corners of the ejector plate are fixedly connected with abutting guide pillars, the lower die plate B is provided with matching guide holes corresponding to the abutting guide pillars in a penetrating mode, and the abutting guide pillars can be matched with the matching guide holes in a vertically movable mode.

7. The button injection mold according to claim 1, wherein: go up equal fixedly connected with support rod on the left and right sides of mould A board, it has the confession to support to hold the pole and pierce through decurrent side opening to open on the side of lower mould B board, it has the confession to support the roof opening that the lower extreme that holds the pole got into to open on the thimble board, detachable is connected with the kicking block on the space bar, the kicking block sets up on roof open-ended rear side, hinged joint has the dwang on the side of lower mould B board, the lower extreme of dwang supports and holds on the thimble board, the dwang lower extreme be located roof open-ended front side.

8. The button injection mold according to claim 1, wherein: the lower mould core is provided with a plurality of side loose cores used for being inserted into an injection mould cavity from the side, a lower mould B plate is provided with a slide seat connected with the side loose cores, the lower mould B plate is provided with a sliding groove for the slide seat to be close to or far away from the injection mould cavity, two sides of the slide seat are provided with limiting sliding edges, the lower mould B plate is provided with a pressing strip above the limiting sliding edges, an upper mould A plate is fixedly connected with an inclined guide pillar, the inclined guide pillar inclines towards one side far away from the injection mould cavity, and the slide seat is provided with an inclined guide hole matched with the inclined guide pillar.

9. The button injection mold of claim 8, wherein: the slide seat is detachably connected with an inclined wear-resistant block on one surface back to the injection molding cavity, the inclined wear-resistant block is provided with an inclined positioning surface, and the upper die plate A is provided with an inclined positioning block which is used for abutting against the inclined positioning surface.

10. The button injection mold according to claim 9, wherein: and a positioning groove is formed in the lower part of the lower die B plate corresponding to the inclined positioning block, and the lower end of the inclined positioning block is inserted into the positioning groove when the upper die A plate and the lower die B plate are closed.