CN114834010B

CN114834010B - Injection mold for inner support of automobile side plate

Info

Publication number: CN114834010B
Application number: CN202210460366.1A
Authority: CN
Inventors: 朱海兵
Original assignee: Taizhou Sanpu Mould Co ltd
Current assignee: Taizhou Sanpu Mould Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-05-30
Anticipated expiration: 2042-04-28
Also published as: CN114834010A

Abstract

The application discloses an injection mold for an inner support of an automobile side plate, which relates to the technical field of molds and comprises a first connecting block, a movable mold and a fixed mold, wherein the first connecting block is connected with the movable mold in a sliding manner; a cavity is arranged between the movable die and the fixed die; the movable mould is provided with a through hole, and the through hole is connected with a main sliding block in a sliding way; the main sliding block is connected with a side sliding block in a sliding way, and one end of the side sliding block, which is far away from the main sliding block, is protruded with a back-off forming block; through setting up first connecting block, main slider, side slider and back-off shaping piece, main slider drives side slider removal in-process and can make the side slider drive the back-off shaping piece and slide along the butt guide surface for the back-off shaping piece breaks away from the back-off, and then the demoulding in-process back-off shaping piece can not cause the influence to the back-off, has improved the product quality of car curb plate inner support.

Description

Injection mold for inner support of automobile side plate

Technical Field

The application relates to the technical field of molds, and more specifically relates to an injection mold for an inner bracket of an automobile side plate.

Background

The inner bracket of the side plate of the automobile is a plastic product and is generally manufactured by adopting an injection mold. The inner support surface of the automobile side plate is provided with a plurality of grooves, and the opposite side walls of the grooves are generally provided with inverted buckles.

The injection mold generally adopts the upper and lower drawing of patterns, namely can only follow one direction between car curb plate inner support and the injection mold and separate, and the separation direction of back-off on the car curb plate inner support and mould is different from the whole separation direction with the mould of car curb plate inner support, consequently the back-off can seriously influence the drawing of patterns of car curb plate inner support on the injection mold, if follow the drawing of patterns by force in a direction then easily lead to the back-off fracture, leads to the unable use of final shaping car curb plate inner support, influences the product quality of final shaping, remains to be improved.

Disclosure of Invention

In order to improve the product quality of car curb plate inner support, this application provides a car curb plate inner support injection mold.

The application provides an automobile side board inner support injection mold adopts following technical scheme:

the injection mold comprises a first connecting block, a movable mold and a fixed mold, wherein the first connecting block is connected with the movable mold in a sliding manner, and the fixed mold is positioned at one end of the movable mold far away from the first connecting block; the sliding direction of the first connecting block relative to the movable die is parallel to the distribution direction of the first connecting block and the movable die, and a cavity is arranged between the movable die and the fixed die;

the movable die is provided with a through hole, a main sliding block is connected with the through hole in a sliding manner, one end of the main sliding block is fixedly connected with the first connecting block, the other end of the main sliding block penetrates through the through hole and stretches into the cavity, and the sliding direction of the main sliding block relative to the movable die is consistent with the sliding direction of the first connecting block relative to the movable die;

the main sliding block is connected with a side sliding block in a sliding manner, one end of the side sliding block, which is far away from the main sliding block, is protruded with an inverted buckle forming block, and the inverted buckle forming block is used for forming inverted buckles by being matched with the cavity;

the movable die is internally provided with an abutting guide surface, the abutting guide surface is obliquely arranged, the oblique direction of the abutting guide surface is matched with the protruding direction of the inverted buckle forming block, the side sliding block is provided with a side sliding guide surface, and the side sliding guide surface is attached to the abutting guide surface;

when the first connecting block drives the main sliding block to move in the direction away from the fixed die, the main sliding block drives the side sliding block to slide along the abutting guide surface so as to enable the back-off forming block to be separated from the back-off.

Through above-mentioned technical scheme, set up first connecting block, main slider, side slider and back-off shaping piece, through the cooperation shaping of back-off shaping piece with the die cavity, and back-off shaping piece is located the back-off after the shaping, when needing the drawing of patterns, drive the direction that the main slider was kept away from to the first connecting block of driving on the lathe to slide, make first connecting block drive main slider slide, main slider slides the in-process and drive side slider along the butt guide surface, because the incline direction of butt guide surface and the protruding direction looks adaptation of back-off shaping piece, the incline direction of butt guide surface also with the mouth orientation looks adaptation of back-off promptly, and then main slider drives the slider and drives the back-off shaping piece and slide along the butt guide surface, make the back-off shaping piece break away from the back-off, can carry out the drawing of patterns separation between car curb plate inner bracket and the mould after the back-off shaping piece breaks away from, make the possibility that the fracture appears in the car curb plate inner bracket can not influence to the back-off, improve the product quality.

Optionally, an adjusting hole is formed in one end, far away from the movable die, of the first connecting block, the adjusting hole is a blind hole, a through hole is formed in the bottom of the adjusting hole, an adjusting bolt is arranged through the through hole in a penetrating mode, the diameter of the through hole is smaller than that of the bolt head of the adjusting bolt, and the diameter of the through hole is larger than the outer diameter of a thread of the adjusting bolt; a threaded hole is formed in one end, away from the fixed die, of the movable die, and the adjusting bolt is in threaded connection with the threaded hole;

when the first connecting block is attached to the movable die, a gap is reserved between the bolt head of the adjusting bolt and the hole bottom of the adjusting hole;

when the first connecting block moves in a direction away from the movable die, the screw rod of the adjusting bolt slides relative to the through hole, and the through hole is used for limiting the bolt head of the adjusting bolt to be separated from the first connecting block.

Through the technical scheme, the adjusting bolt, the adjusting hole, the through hole and the threaded hole are arranged, and when the first connecting block is attached to the movable die, a gap is reserved between the bolt head of the adjusting bolt and the hole bottom of the adjusting hole; when the first connecting block moves in a direction away from the movable die, the screw rod of the adjusting bolt slides relative to the through hole, and the through hole is used for limiting the bolt head of the adjusting bolt to be separated from the first connecting block; and then can restrict the separation interval of first connecting block and movable mould through adjusting bolt and the cooperation through the hole, and when the separation interval between first connecting block and the movable mould is biggest, the movable mould follows first connecting block from removing, and then makes only need a drive source can separate first connecting block and movable mould from the cover half simultaneously, and still can make the back-off shaping piece break away from the back-off simultaneously, improves the simple operation nature of whole drawing of patterns.

Optionally, a connecting component is connected between the first connecting block and the movable mould;

the connecting assembly comprises a first limiting block and a second limiting block, one end of the first limiting block is fixed on the first connecting block, and a first limiting guide surface is arranged at the other end of the first limiting block;

the movable mould is provided with a limiting cavity for accommodating a second limiting block, the cavity bottom of the limiting cavity is provided with a connecting spring, the connecting spring is connected with the second limiting block and used for pushing the second limiting block towards a direction away from the cavity bottom of the limiting cavity, and one end of the second limiting block away from the cavity bottom of the limiting cavity is provided with a second limiting guide surface;

the second limiting guide surface is inclined in a direction approaching to the fixed die in a direction away from the cavity bottom of the limiting cavity, and the inclined direction of the first limiting guide surface is parallel to the inclined direction of the second limiting guide surface;

when the first connecting block is attached to the movable die, the first limiting guide surface is positioned at one end of the second limiting guide surface, which faces the fixed die;

when the first connecting block moves in the direction away from the movable die so that the bolt head of the adjusting bolt is abutted against the hole bottom of the adjusting hole, the first limiting guide surface pushes the second limiting guide surface to move in the direction close to the cavity bottom of the limiting cavity so that the second limiting block is completely accommodated in the limiting cavity, and the first limiting block and the second limiting block are mutually abutted to be used for limiting the second limiting block to be separated from the limiting cavity;

the connecting assembly further comprises a third limiting block, one end of the third limiting block is fixed to the fixed die, a third limiting surface is arranged at the other end, far away from the fixed die, of the third limiting block, and the third limiting surface is used for being abutted with the end face, far away from the second limiting guide surface, of the second limiting block so as to limit relative movement between the movable die and the fixed die.

Through the technical scheme, the connecting assembly is arranged and linked with the first connecting block, when the first connecting block moves, the first connecting block drives the first limiting block to move relative to the movable die, so that the first limiting guide surface pushes the second limiting guide surface to move in the direction of approaching the cavity bottom of the limiting cavity, and the second limiting block moves in the direction of approaching the cavity bottom of the limiting cavity;

because the adjusting bolt limits the separation distance between the first connecting block and the movable mould, when the first connecting block and the movable mould are at the maximum separation distance, the first limiting block is just positioned at the cavity opening of the limiting cavity to abut against the second limiting block and limit the second limiting block to separate from the limiting cavity, and then the first connecting block is continuously moved, the first connecting block can drive the movable mould to move together relative to the fixed mould, meanwhile, because the second limiting block is positioned in the limiting cavity, the third limiting surface is not abutted against the end surface of the second limiting block, which is far away from the second limiting guide surface, of the second limiting block, and when the first connecting block and the movable mould are far away from the fixed mould, the third limiting block can not limit the separation of the braking mould and the fixed mould, and the movable mould can be easily separated relative to the fixed mould;

and when the first connecting block does not generate relative movement with the movable mould, namely, when the main sliding block does not drive the side sliding block to move, the movable mould cannot be separated from the fixed mould due to the abutting of the third limiting block and the second limiting block, so that the product of the injection-molded inner support of the side plate of the automobile can be effectively protected, and unnecessary damage to the product of the inner support of the side plate of the automobile caused by careless movement of the movable mould is avoided.

Optionally, one end of the third limiting block, which is away from the third limiting surface, is provided with a third limiting guide surface, the third limiting guide surface is obliquely arranged, and the oblique direction of the third limiting guide surface is parallel to the oblique direction of the second limiting guide surface;

when the movable die moves towards the fixed die, the third limiting guide surface is used for propping the second limiting guide surface tightly so that the second limiting block slides towards the direction close to the bottom of the limiting cavity;

when the fixed die and the movable die are mutually attached, the third limiting guide surface is positioned at one end of the second limiting block, which is away from the fixed die.

Through the technical scheme, the third limiting guide surface is arranged, when the movable mould needs to be attached to the fixed mould, the second limiting guide surface is abutted tightly by the third limiting guide surface, so that the second limiting block moves towards the direction close to the cavity bottom of the limiting cavity until the fixed mould and the movable mould are attached to each other, the second limiting block is pushed out towards the direction far away from the cavity bottom of the limiting cavity by the connecting spring, the third limiting surface is abutted against the end face of the second limiting guide surface far away from the second limiting block, the relative movement of the movable mould and the fixed mould is limited, the whole operation is convenient and fast, only the movable mould needs to be moved towards the direction close to the fixed mould, redundant operation is not needed, and the convenience of operation is improved.

Optionally, the connecting assembly is provided with two groups, and the two groups of connecting assemblies are symmetrically arranged about the movable mould.

Through above-mentioned technical scheme, improve the connection stability between first linkage piece, movable mould and the cover half.

Optionally, the fixed die is provided with a chute forming assembly;

the chute forming assembly comprises a chute forming block, a release guide block and a driving piece;

the fixed die is provided with a guide cavity, the guide cavity is communicated with the die cavity, the chute forming block is connected to the inner wall of the guide cavity in a sliding manner, one end of the chute forming block penetrates through the guide cavity and stretches into the die cavity, one end of the chute forming block penetrating into the die cavity is used for being matched with the die cavity to form a chute, and the guide cavity is used for limiting the sliding direction of the chute forming block;

the fixed die is provided with a release cavity, the release cavity is communicated with the guide cavity, the release guide block is positioned in the release cavity and is in sliding connection with the chute forming block, and the driving piece is arranged on the fixed die and used for driving the release guide block to slide in the release cavity;

when the driving piece drives the ejection guide block to slide in the direction away from the ejection cavity, the ejection guide block is used for driving the chute forming block to slide in the direction away from the cavity in the guide cavity.

Through above-mentioned technical scheme, set up chute shaping subassembly, can process out the chute of needs in the die cavity through chute shaping piece, and can make chute shaping piece break away from the chute through the driving piece, convenient and fast improves the convenience of processing.

Optionally, one end of the chute shaping block far away from the die cavity is provided with a dovetail slide block, the release guide block is provided with a dovetail groove for the dovetail slide block to slide and connect, and the chute shaping block is in sliding connection with the release guide block through the cooperation of the dovetail slide block and the dovetail groove.

Through above-mentioned technical scheme, set up forked tail slider and dovetail for deviate from the connection between guide block and the chute shaping piece more stable, and then make and deviate from the guide block and can guide the chute shaping piece to withdraw from the chute better, improve stability and the convenience of whole use.

Optionally, the movable mould is provided with an embedding block, the ejection guide block is provided with an embedding groove for embedding, and the notch of the embedding groove is arranged towards the movable mould;

when the movable die and the fixed die are separated, the insert is separated from the insert groove; when the movable die is attached to the fixed die, the embedded block is embedded into the embedded groove.

Through above-mentioned technical scheme, set up caulking groove and abaculus, be when movable mould and cover half laminating, the abaculus embedding caulking groove can effectually restrict the removal of deviating from the guide block, and then restrict the removal of chute shaping piece for reduce the fine movement of chute shaping piece in the injection molding process, make the position of chute shaping piece more stable in the injection molding process, improve final injection molding's chute quality.

Optionally, the first connecting block is fixed with a guide post, the axis direction of the guide post is parallel to the distribution direction of the first connecting block and the movable mould, the movable mould is provided with a guide connecting hole, and the guide post penetrates into the guide connecting hole;

when the first connecting block and the movable die slide relatively, the guide column slides in the axial direction in the guide connecting hole.

Through above-mentioned technical scheme, set up the guide post, provide the direction to sliding between first linkage piece and the movable mould, reduce rocking of other directions for the direction of separation among the mutual separation process between first linkage piece and the movable mould, improve the stability of separation between first linkage piece and the movable mould, and then reduce the rocking of movable mould for first linkage piece and cover half in the drawing of patterns process for the drawing of patterns is more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) Through setting up first connecting block, main slider, side slider and back-off shaping piece, can make first connecting block and the drive arrangement on the lathe be connected, drive first connecting block through the drive arrangement on the lathe and remove, thereby make first connecting block drive main slider slip, main slider slip in-process drive side slider slip along the butt guide surface, main slider drive side slider move in-process can make the sideslip piece drive back-off shaping piece slip along the butt guide surface, make the back-off shaping piece break away from the back-off, the back-off shaping piece breaks away from the back-off separation that can carry out between car curb plate inner support and the mould, can not influence the back-off in-process, reduce the possibility that the fracture appears in the back-off, improve the product quality of car curb plate inner support;

(2) Through setting up adjusting bolt, adjusting hole, through hole and screw hole, can restrict the separation interval of first connecting block and movable mould through adjusting bolt and through hole's cooperation, and when the separation interval between first connecting block and the movable mould is the biggest, the movable mould follows first connecting block follow and removes, and then makes only need a drive source can separate first connecting block and movable mould from the cover half simultaneously, and can also make the back-off shaping piece break away from the back-off simultaneously, improves the operating convenience of whole drawing of patterns;

(3) Through setting up coupling assembling, make things convenient for the separation between first connecting block, movable mould and the cover half, and when first connecting block does not produce relative movement with the movable mould, when the main slider does not drive the side slider and remove promptly, because third stopper and second stopper looks butt, the movable mould can't break away from the cover half, and then can form effectual protection to this product of injection moulding's car curb plate inner support, avoid carelessly removing the movable mould and lead to this product of car curb plate inner support to receive unnecessary damage.

Drawings

Fig. 1 is a schematic overall structure of the present embodiment.

Fig. 2 is a schematic cross-sectional view of the whole structure of the present embodiment, for showing the structures of the adjusting bolt and the adjusting hole.

Fig. 3 is an enlarged schematic view of the structure of the adjusting bolt, the adjusting hole, the passing hole and the screw hole of the present embodiment.

Fig. 4 is a schematic cross-sectional view of the whole structure of the present embodiment, for showing the structure of the first die core and the second die core.

Fig. 5 is an enlarged schematic view of the structure of the connection assembly of the present embodiment.

Fig. 6 is a schematic cross-sectional view of the overall structure of the present embodiment for showing the structure of the chute forming assembly.

Fig. 7 is a schematic structural diagram of a main slider, a side slider, a back-off forming block, a side slider, and an abutment guide block according to the present embodiment.

Fig. 8 is an exploded view of the chute forming assembly of the present embodiment.

Fig. 9 is a schematic overall structure of the present embodiment, for showing the structure of the ejection hole.

Reference numerals: 1. a first connection block; 2. a movable mold; 3. a fixed mold; 4. a guide post; 5. a guide connection hole; 6. an adjustment aperture; 7. a through hole; 8. an adjusting bolt; 9. a threaded hole; 10. a connection assembly; 101. a first limiting block; 1011. a first bump; 1012. a first limit guide surface; 102. a second limiting block; 1021. the second limiting guide surface; 103. a third limiting block; 1031. a conduction groove; 1032. a third bump; 1033. a third limit guide surface; 1034. a third limiting surface; 11. a spacing cavity; 12. a connecting spring; 13. a first die core; 14. a second die core; 15. a cavity; 16. an injection molding port; 17. a through port; 18. a main slider; 19. a side slider; 191. a sideslip guide block; 192. a sideslip guide surface; 20. reversely buckling the forming block; 21. abutting against the guide block; 211. abutting against the guide surface; 22. a chute forming assembly; 221. a chute forming block; 222. a guide block is separated; 223. a driving member; 23. a guide chamber; 24. a pull-out cavity; 25. a dovetail groove; 26. dovetail slide blocks; 27. an insert; 28. a caulking groove; 29. and (5) ejecting the hole.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses an injection mold for an inner support of an automobile side plate.

Referring to fig. 1 and 2, the mold assembly comprises a first connecting block 1, a movable mold 2 and a fixed mold 3 which are sequentially arranged from top to bottom in the vertical direction. The first connecting block 1, the movable die 2 and the fixed die 3 are all in a cuboid shape. Four guide posts 4 are fixed on the end face of the first connecting block 1, which faces the movable die 2, and the four guide posts 4 are respectively positioned at four corners of the first connecting block 1. Four guide connecting holes 5 for the guide posts 4 to penetrate are formed in the end face of the movable die 2, facing the first connecting block 1, the four guide posts 4 penetrate into the four guide connecting holes 5 one by one, and each guide post 4 is connected with the guide connecting hole 5 penetrated by the guide post 4 in a sliding mode. The first connecting block 1 is slidably connected with the movable mould 2 through the cooperation of the guide post 4 and the guide connecting hole 5.

Referring to fig. 2 and 3, four adjusting holes 6 are formed in the end surface of the first connecting block 1, which is far away from the movable die 2, and the four adjusting holes 6 are located at four corners of the first connecting block 1 respectively. Each adjusting hole 6 is a blind hole, and the axis of each adjusting hole 6 is vertically arranged. The bottom of each adjusting hole 6 is coaxially provided with a through hole 7, and the diameter of each through hole 7 is smaller than that of the corresponding adjusting hole 6. Each adjusting hole 6 is coaxially penetrated with an adjusting bolt 8, the diameter of the bolt head of the adjusting bolt 8 is larger than that of the through hole 7, and the outer diameter of the screw rod of the adjusting bolt 8 is smaller than that of the adjusting hole 6. Four threaded holes 9 for the threaded connection of the adjusting bolts 8 are formed in the end face, facing the first connecting block 1, of the movable die 2. The four threaded holes 9 are respectively positioned at the four corners of the movable die 2, and the four threaded holes 9 and the four adjusting holes 6 are coaxially arranged in one-to-one correspondence. An adjusting bolt 8 penetrating through each adjusting hole 6 is in threaded connection with a corresponding threaded hole 9. The bolt head of each adjusting bolt 8 is positioned in the adjusting hole 6, and the distance from the bolt head of each adjusting bolt 8 to the bottom of the adjusting hole 6 is consistent.

Referring to fig. 4 and 5, a connection assembly 10 is connected among the first connection block 1, the movable mold 2, and the fixed mold 3. The connection assembly 10 includes a first stop block 101, a second stop block 102, and a third stop block 103. The first stopper 101 is rectangular form, and first stopper 101 length direction's one end is fixed in on one vertical lateral wall of first connecting block 1, and first stopper 101 length direction's the other end an organic whole is provided with first lug 1011, and the bellied part of first lug 1011 sets up towards the direction that is close to movable mould 2, and first spacing guide surface 1012 has been seted up to the one end that first lug 1011 kept away from fixed mould 3, and first spacing guide surface 1012 is the slope setting that is close to movable mould 2 direction towards the direction that keeps away from fixed mould 3.

A limiting cavity 11 for accommodating the second limiting block 102 is formed in one vertical side wall of the movable die 2, a connecting spring 12 is fixed at the bottom of the limiting cavity 11, and the other end of the connecting spring 12 is arranged towards the cavity opening of the limiting cavity 11 and is fixedly connected with the second limiting block 102. The connecting spring 12 is used for pushing the second limiting block 102 towards a direction away from the bottom of the limiting cavity 11, and the second limiting block 102 can slide in the limiting cavity 11. The end surface of the second limiting block 102 far away from the cavity bottom of the limiting cavity 11 is provided with a second limiting guide surface 1021, the second limiting guide surface 1021 is obliquely arranged in the direction close to the fixed die 3 towards the direction far away from the movable die 2, and the second limiting guide surface 1021 and the first limiting guide surface 1012 are mutually parallel.

The third stopper 103 is rectangular cubic, and third stopper 103 length direction's one end fixed connection is in cover half 3, and the other end of third stopper 103 sets up along vertical direction towards the direction of keeping away from cover half 3, and the conduction groove 1031 that supplies first stopper 101 to hold and slide has been seted up to the one end that the cover half 3 was kept away from to the third stopper 103. The one end that third stopper 103 kept away from cover half 3 still integrally provided with third lug 1032, third lug 1032 kept away from the terminal surface of third stopper 103 has seted up the spacing guide surface 1033 of third, and the spacing guide surface 1033 of third is the direction slope setting towards being close to the direction of third stopper 103 towards the direction of keeping away from cover half 3, and the incline direction of spacing guide surface 1033 of third is the same with the incline direction of first spacing guide surface 1012. The third bump 1032 further defines a third stop surface 1034, the third stop surface 1034 being disposed away from the third stop guide surface 1033.

The two groups of connecting assemblies 10 are arranged, and the two groups of connecting assemblies 10 are symmetrically arranged about the movable mould 2.

Referring to fig. 3 and 5, when the first connection block 1, the movable mold 2 and the fixed mold 3 are completely attached to each other, the first limit guide surface 1012 is parallel to the second limit guide surface 1021, and the first limit guide surface 1012 is positioned at one end of the second limit guide surface 1021 facing the fixed mold 3, and the distance between the first limit guide surface 1012 and the second limit guide surface 1021 in the vertical direction is equal to the distance between the bolt head of the adjusting bolt 8 and the bottom of the adjusting hole 6; the third limiting surface 1034 is abutted against an end surface, deviating from the second limiting guide surface 1021, of the second limiting block 102. One end of the first limiting block 101, which is far away from the first connecting block 1 along the vertical direction, extends into the conducting groove 1031.

When the first connecting block 1 moves to the direction away from the movable die 2 and the bolt head of the adjusting bolt 8 is abutted to the bottom of the adjusting hole 6, the first bump 1011 pushes the second limiting block 102 into the limiting cavity 11 completely through the guiding of the first limiting guide surface 1012 and the second limiting guide surface 1021, and at the moment, the first limiting guide surface 1012 just faces the cavity opening of the limiting cavity 11 to limit the second limiting block 102 to extend out of the limiting cavity 11, so that the third limiting surface 1034 is not abutted to the end surface, away from the second limiting guide surface 1021, of the second limiting block 102, and at the moment, the first connecting block 1 is pulled to the direction away from the fixed die 3, and the first connecting block 1 drives the movable die 2 to move to the direction away from the fixed die 3, so that the movable die 2 and the fixed die 3 are separated.

Referring to fig. 4, a first cavity is formed in the end surface of the movable mold 2 facing the fixed mold 3, a first mold core 13 is fixed in the first cavity, a second cavity is formed in the end surface of the fixed mold 3 facing the movable mold 2, and a second mold core 14 is fixed in the second cavity. A cavity 15 is formed between the opposite ends of the first die core 13 and the second die core 14. The first connecting block 1 is provided with an injection molding opening 16, and the injection molding opening 16 penetrates downwards to the cavity 15 along the vertical direction and is communicated with the cavity 15.

Referring to fig. 4 and 6, the end surface of the movable mold 2 facing the first connecting block 1 is provided with a through hole 17, the axis of the through hole 17 is vertically arranged, and the through hole 17 penetrates the first mold core 13 in the vertical direction and is communicated with the cavity 15. A main slide block 18 is slidably connected in the through hole 17, one end of the main slide block 18 is fixedly connected with the end face of the first connecting block 1 facing the movable die 2, the other end of the main slide block 18 penetrates through the through hole 17 and stretches into the cavity 15, and the sliding direction of the main slide block 18 relative to the through hole 17 is consistent with the sliding direction of the first connecting block 1 relative to the movable die 2. Two sides of the main sliding block 18 are respectively connected with a side sliding block 19 in a sliding manner, the distribution direction of the two side sliding blocks 19 is perpendicular to the distribution direction of the two connecting assemblies 10, and the distance between the two side sliding blocks 19 is gradually increased towards the direction away from the fixed die 3.

Referring to fig. 6 and 7, the end face of each side slider 19 remote from the main slider 18 is integrally provided with an inverted molding block 20, and the inverted molding blocks 20 protrude from the side sliders 19 in a direction remote from the main slider 18. The back-off forming block 20 is used for being matched with the cavity 15 to form the back-off.

Two abutting guide blocks 21 are fixed in the first die core 13, and one abutting guide surface 211 is respectively arranged on each of the two abutting guide blocks 21. The oblique directions of the two abutment guide surfaces 211 are respectively matched with the protruding directions of the two back-off forming blocks 20, and in this embodiment, the oblique directions of the abutment guide surfaces 211 are parallel to the protruding directions of the back-off forming blocks 20. In other embodiments, the included angle between the inclined direction of the abutment guide surface 211 and the protruding direction of the back-off forming block 20 may be less than or equal to 5 degrees. Each side slider 19 is provided with a side sliding guide block 191 uniformly, the side sliding guide blocks 191 are provided with side sliding guide surfaces 192, the two side sliding guide surfaces 192 are respectively attached to the two abutting guide surfaces 211, the two side sliding guide surfaces 192 are in one-to-one sliding connection with the two abutting guide surfaces 211, and the sliding direction of each side sliding guide surface 192 on the corresponding abutting guide surface 211 is along the inclined direction of the corresponding abutting guide surface 211. In the actual use process, when the first connecting block 1 drives the main sliding block 18 to move towards the direction far away from the fixed die 3, the main sliding block 18 drives the side sliding blocks 19 on two sides to slide along the corresponding abutting guide surfaces 211 respectively, so that the back-off forming blocks 20 on the side sliding blocks 19 on two sides are separated from the back-off respectively, the influence on the back-off in the demolding process can be reduced, the possibility of breaking the back-off is reduced, and the product quality of the inner bracket of the side plate of the automobile is improved.

Referring to fig. 2 and 7, when the first connecting block 1 moves away from the movable die 2 until the bolt head of the adjusting bolt 8 abuts against the hole bottom of the adjusting hole 6, the back-off forming blocks 20 on the two side sliding blocks 19 are exactly disengaged from the respective corresponding back-offs.

Referring to fig. 6, the stationary mold 3 is provided with a chute molding assembly 22, and the chute molding assembly 22 includes a chute molding block 221, a escape guide block 222, and a driver 223. The second die core 14 is provided with a guide cavity 23, the cavity opening of the guide cavity 23 is obliquely arranged in a direction approaching to the die cavity 15 in a direction away from the fixed die 3, and the cavity opening of the guide cavity 23 is communicated with the die cavity 15. The chute forming block 221 slides and connects in the inner wall of the guiding cavity 23 along the inclined direction of the cavity opening of the guiding cavity 23, one end of the chute forming block 221 protrudes out of the guiding cavity 23 and stretches into the cavity 15, and one end of the chute forming block 221 stretching into the cavity 15 is used for being matched with the cavity 15 to process a chute.

Referring to fig. 6 and 8, the fixed mold 3 is further provided with a release cavity 24, the release cavity 24 is located at one end of the guide cavity 23 far away from the cavity 15, the release cavity 24 is communicated with the guide cavity 23, and an orifice of the release cavity 24 penetrates through the vertical side wall of the fixed mold 3 in the horizontal direction to be communicated with the outside. The release guide block 222 is positioned in the release cavity 24, and one end of the release guide block 222 facing the guide cavity 23 is provided with a dovetail groove 25, and the bottom of the dovetail groove 25 is arranged in a downward inclined manner towards the cavity opening direction far away from the release cavity 24. The end of the chute shaping block 221 away from the cavity 15 is integrally provided with a dovetail slide block 26, the dovetail slide block 26 is slidingly connected with the dovetail groove 25, and the chute shaping block 221 is slidingly connected with the release guide block 222 through the cooperation of the dovetail slide block 26 and the dovetail groove 25. The driving piece 223 is installed on the vertical side wall of the fixed die 3, the driving piece 223 is a driving cylinder, an output shaft of the driving piece 223 is arranged towards the cavity of the ejection cavity 24 along the horizontal direction, and the output shaft of the driving piece 223 extends into the ejection cavity 24 and is fixedly connected with one end of the ejection guide block 222 towards the cavity opening of the ejection cavity 24.

Alternatively, the driving member 223 may also be a hydraulic cylinder.

When the output shaft of the driving member 223 pulls the release guide block 222 along the horizontal direction in a direction away from the cavity 15, the release guide block 222 drives the chute forming block 221 to move obliquely downwards along the inner wall of the guide cavity 23 in a direction away from the cavity 15, so that the chute forming block 221 can be separated from the chute, and the influence on the separation between the inner bracket of the side plate of the automobile and the fixed die 3 due to the fact that the chute forming block 221 is not released from the chute is avoided.

The end face of the movable mould 2 facing the fixed mould 3 is also penetrated with an embedding block 27, and one end of the ejection guide block 222 far away from the ejection cavity 24 is provided with an embedding groove 28 for embedding the embedding block 27. When the movable mold 2 and the fixed mold 3 are mutually attached, the embedded block 27 is embedded in the embedded groove 28 to limit the sliding of the ejection guide block 222 in the ejection cavity 24, and further limit the sliding of the chute forming block 221 in the guide cavity 23, so as to improve the forming quality of the chute. When the movable die 2 and the fixed die 3 are mutually separated, the first connecting block 1 and the movable die 2 move towards the direction far away from the fixed die 3, so that the insert 27 is separated from the insert groove 28, and then the driving piece 223 can drive the release guide block 222 to move towards the direction far away from the cavity 15 along the horizontal direction, so that the release guide block 222 can drive the chute forming block 221 to be separated from the chute, and the subsequent separation between the inner bracket of the automobile side plate and the fixed die 3 is facilitated.

Referring to fig. 6 and 9, a plurality of ejection holes 29 are formed in one end of the fixed mold 3, which is far away from the movable mold 2, and each ejection hole 29 is communicated with the inside of the cavity 15. The ejection hole 29 is used for being connected with an ejection mechanism on a machine tool so that the ejection mechanism on the machine tool ejects the molded inner bracket of the automobile side plate from the fixed die 3.

The step of separating the movable die 2 and the fixed die 3 of the inner bracket of the side plate of the actual automobile is as follows:

s1, referring to FIGS. 3 and 5, driving the first connecting block 1 to move in a direction away from the fixed die 3 by driving equipment on a machine tool until the bolt head of the adjusting bolt 8 is abutted against the bottom of the adjusting hole 6, and at the moment, the first bump 1011 pushes the second limiting block 102 into the limiting cavity 11, so that the third limiting surface 1034 is not abutted against the end surface, deviating from the second limiting guide surface 1021, of the second limiting block 102;

referring to fig. 6 and 7, while the first connecting block 1 moves in a direction away from the fixed mold 3, the first connecting block 1 drives the main slider 18 to move in a direction away from the fixed mold 3, so that the main slider 18 drives the side slider 19 to slide, and the back-off forming block 20 is separated from the back-off;

s2, referring to FIGS. 2 and 6, the driving device on the machine tool continuously drives the first connecting block 1 to move towards the direction away from the fixed die 3, and as the bolt head of the adjusting bolt 8 is abutted against the hole bottom of the adjusting hole 6, the movable die 2 moves along with the first connecting block 1, and the movable die 2 drives the insert 27 to be separated from the insert groove 28;

s3, referring to FIGS. 6 and 8, after the insert 27 is separated from the insert groove 28, the driving piece 223 drives the separation guide block 222 to move in the separation cavity 24 along the horizontal direction in a direction away from the cavity 15, so that the separation guide block 222 drives the chute forming block 221 to slide along the inner wall of the guide cavity 23, and the chute forming block 221 is separated from the chute;

s4, referring to FIG. 9, the molded inner support of the automobile side plate is ejected out of the fixed mold 3 through an ejection mechanism on the machine tool, and then the inner support of the automobile side plate and the fixed mold 3 can be separated.

The working principle of the embodiment is as follows: the main sliding block 18 is driven to move through the first connecting block 1, the main sliding block 18 drives the side sliding block 19 to move, the back-off forming block 20 is driven to be separated from the back-off through the side sliding block 19, the separation guide block 222 is driven to move through the driving piece 223, the chute forming block 221 is driven to be separated from the chute through the separation guide block 222, so that the demolding of the inner bracket of the automobile side plate is not influenced, unnecessary damage to the inner bracket of the automobile side plate caused by demolding is reduced, and the product quality of the inner bracket of the automobile side plate is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An automobile side plate inner support injection mold which is characterized in that: the movable die comprises a first connecting block (1), a movable die (2) and a fixed die (3), wherein the first connecting block (1) is connected with the movable die (2) in a sliding manner, and the fixed die (3) is positioned at one end, far away from the first connecting block (1), of the movable die (2); the sliding direction of the first connecting block (1) relative to the movable die (2) is parallel to the distribution direction of the first connecting block (1) and the movable die (2), and a cavity (15) is arranged between the movable die (2) and the fixed die (3);

the movable die (2) is provided with a through hole (17), the through hole (17) is connected with a main sliding block (18) in a sliding manner, one end of the main sliding block (18) is fixedly connected with the first connecting block (1), the other end of the main sliding block (18) penetrates through the through hole (17) and stretches into the die cavity (15), and the sliding direction of the main sliding block (18) relative to the movable die (2) is consistent with the sliding direction of the first connecting block (1) relative to the movable die (2);

the main sliding block (18) is connected with a side sliding block (19) in a sliding manner, one end, far away from the main sliding block (18), of the side sliding block (19) is provided with an inverted buckle forming block (20) in a protruding manner, and the inverted buckle forming block (20) is used for forming inverted buckles in a matched manner with the cavity (15);

an abutting guide surface (211) is arranged in the movable die (2), the abutting guide surface (211) is obliquely arranged, the oblique direction of the abutting guide surface (211) is matched with the protruding direction of the inverted buckle forming block (20), the side sliding block (19) is provided with a side sliding guide surface (192), and the side sliding guide surface (192) is attached to the abutting guide surface (211);

when the first connecting block (1) drives the main sliding block (18) to move in a direction away from the fixed die (3), the main sliding block (18) drives the side sliding block (19) to slide along the abutting guide surface (211) so as to enable the back-off forming block (20) to be separated from the back-off;

an adjusting hole (6) is formed in one end, far away from the movable die (2), of the first connecting block (1), the adjusting hole (6) is a blind hole, a through hole (7) is formed in the bottom of the adjusting hole (6), an adjusting bolt (8) is arranged in the through hole (7) in a penetrating mode, the diameter of the through hole (7) is smaller than the diameter of the bolt head of the adjusting bolt (8), and the diameter of the through hole (7) is larger than the outer diameter of a thread of the adjusting bolt (8); one end of the movable die (2) far away from the fixed die (3) is provided with a threaded hole (9), and the adjusting bolt (8) is in threaded connection with the threaded hole (9);

when the first connecting block (1) is attached to the movable die (2), a gap is reserved between the bolt head of the adjusting bolt (8) and the hole bottom of the adjusting hole (6);

when the first connecting block (1) moves in a direction away from the movable die (2), the screw rod of the adjusting bolt (8) slides relative to the through hole (7), and the through hole (7) is used for limiting the bolt head of the adjusting bolt (8) to be separated from the first connecting block (1);

a connecting component (10) is connected between the first connecting block (1) and the movable mould (2);

the connecting assembly (10) comprises a first limiting block (101) and a second limiting block (102), one end of the first limiting block (101) is fixed on the first connecting block (1), and a first limiting guide surface (1012) is arranged at the other end of the first limiting block (101);

the movable die (2) is provided with a limiting cavity (11) for accommodating a second limiting block (102), the cavity bottom of the limiting cavity (11) is provided with a connecting spring (12), the connecting spring (12) is connected with the second limiting block (102) and is used for pushing the second limiting block (102) towards a direction away from the cavity bottom of the limiting cavity (11), and one end, away from the cavity bottom of the limiting cavity (11), of the second limiting block (102) is provided with a second limiting guide surface (1021);

the second limiting guide surface (1021) is inclined towards a direction away from the cavity bottom of the limiting cavity (11) and is close to the fixed die (3), and the inclined direction of the first limiting guide surface (1012) is parallel to the inclined direction of the second limiting guide surface (1021);

when the first connecting block (1) is attached to the movable die (2), the first limiting guide surface (1012) is positioned at one end of the second limiting guide surface (1021) facing the fixed die (3);

when the first connecting block (1) moves in a direction away from the movable die (2) so that the bolt head of the adjusting bolt (8) is abutted against the hole bottom of the adjusting hole (6), the first limiting guide surface (1012) pushes the second limiting guide surface (1021) to move in a direction close to the cavity bottom of the limiting cavity (11) so that the second limiting block (102) is completely contained in the limiting cavity (11), and the first limiting block (101) and the second limiting block (102) are abutted against each other so as to limit the second limiting block (102) to be separated from the limiting cavity (11);

the connecting assembly (10) further comprises a third limiting block (103), one end of the third limiting block (103) is fixed to the fixed die (3), the other end, far away from the fixed die (3), of the third limiting block (103) is provided with a third limiting surface (1034), and the third limiting surface (1034) is used for being abutted with the end face, far away from the second limiting guide surface (1021), of the second limiting block (102) so as to limit relative movement between the movable die (2) and the fixed die (3).

2. The injection mold for an inner bracket of a side plate of an automobile according to claim 1, wherein: one end of the third limiting block (103) deviating from the third limiting surface (1034) is provided with a third limiting guide surface (1033), the third limiting guide surface (1033) is obliquely arranged, and the oblique direction of the third limiting guide surface (1033) is parallel to the oblique direction of the second limiting guide surface (1021);

when the movable die (2) moves towards the fixed die (3), the third limit guide surface (1033) is used for propping the second limit guide surface (1021) so that the second limit block (102) slides towards the direction close to the cavity bottom of the limit cavity (11);

when the fixed die (3) and the movable die (2) are mutually attached, the third limit guide surface (1033) is positioned at one end of the second limit block (102) which is away from the fixed die (3).

3. The injection mold for an inner bracket of a side plate of an automobile according to claim 2, wherein: the connecting components (10) are provided with two groups, and the two groups of connecting components (10) are symmetrically arranged relative to the movable mould (2).

4. The injection mold for an inner bracket of a side plate of an automobile according to claim 1, wherein: the fixed die (3) is provided with a chute forming assembly (22);

the chute forming assembly (22) comprises a chute forming block (221), a release guide block (222) and a driver (223);

the fixed die (3) is provided with a guide cavity (23), the guide cavity (23) is communicated with the die cavity (15), the chute forming block (221) is connected to the inner wall of the guide cavity (23) in a sliding mode, one end of the chute forming block (221) penetrates through the guide cavity (23) and stretches into the die cavity (15), one end of the chute forming block (221) penetrating into the die cavity (15) is used for being matched with the die cavity (15) to form a chute, and the guide cavity (23) is used for limiting the sliding direction of the chute forming block (221);

the fixed die (3) is provided with a release cavity (24), the release cavity (24) is communicated with the guide cavity (23), the release guide block (222) is positioned in the release cavity (24) and is in sliding connection with the chute forming block (221), and the driving piece (223) is arranged on the fixed die (3) and is used for driving the release guide block (222) to slide in the release cavity (24);

when the driving piece (223) drives the ejection guide block (222) to slide in a direction away from the ejection cavity (24), the ejection guide block (222) is used for driving the chute forming block (221) to slide in the guide cavity (23) in a direction away from the cavity (15).

5. The injection mold for an inner bracket of a side plate of an automobile according to claim 4, wherein: one end of the chute forming block (221) far away from the cavity (15) is provided with a dovetail sliding block (26), the release guide block (222) is provided with a dovetail groove (25) for the dovetail sliding block (26) to slide and connect, and the chute forming block (221) is connected with the release guide block (222) in a sliding manner through the cooperation of the dovetail sliding block (26) and the dovetail groove (25).

6. The injection mold for an inner bracket of a side plate of an automobile according to claim 4, wherein: the movable die (2) is provided with an embedding block (27), the ejection guide block (222) is provided with an embedding groove (28) for embedding, and the notch of the embedding groove (28) is arranged towards the movable die (2);

when the movable die (2) and the fixed die (3) are separated, the embedded block (27) is separated from the embedded groove (28); when the movable die (2) and the fixed die (3) are attached, the embedded block (27) is embedded into the embedded groove (28).

7. The injection mold for an inner bracket of a side plate of an automobile according to claim 1, wherein: the first connecting block (1) is fixedly provided with a guide column (4), the axial direction of the guide column (4) is parallel to the distribution direction of the first connecting block (1) and the movable die (2), the movable die (2) is provided with a guide connecting hole (5), and the guide column (4) penetrates into the guide connecting hole (5);

when the first connecting block (1) and the movable mould (2) slide relatively, the guide column (4) slides in the guide connecting hole (5) along the axial direction.