CN114654676A

CN114654676A - Inclined core-pulling injection mold and disassembling method

Info

Publication number: CN114654676A
Application number: CN202210265201.9A
Authority: CN
Inventors: 李文波; 钟程
Original assignee: Rishan Computer Accessories Jiashan Co Ltd
Current assignee: Rishan Computer Accessories Jiashan Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-06-24
Anticipated expiration: 2042-03-17
Also published as: CN114654676B

Abstract

The utility model relates to an inclined core-pulling injection mold. It has solved the big and inconvenient technical problem of maintenance, dismouting of current oblique injection mold structure space of loosing core. This injection mold looses core to one side, female mold and public mould including the interval setting, inside formation injection molding cavity behind female mold and the public mould compound die, the injection mold looses core to one side still includes: the guide fixing seat is arranged on the male die; the inclined drawing forming needle is connected with the guide fixing seat in an inclined sliding mode, and the forming end of the inclined drawing forming needle can penetrate into the injection molding cavity; the shifting fork block is rotationally connected with the guide fixing seat or the male die; one end of the shifting fork block is connected with the inclined drawing forming needle; and the elastic mechanism is abutted against the other end of the shifting fork block. This oblique injection mold of loosing core has saved internally mounted occupation space, has simplified the mould structure moreover, reduces the mould cost, can directly carry out quick assembly disassembly and part change, has improved dismouting efficiency greatly.

Description

Inclined core-pulling injection mold and disassembling method

Technical Field

The utility model belongs to the field of injection molds, and relates to an inclined core-pulling injection mold and a disassembling method.

Background

In the injection mold, core-pulling demolding is carried out along the oblique direction, and oblique pulling is called for short; for the inclined drawing of the inclined hole buckle structure of the injection molding product, the prior art adopts an inclined top inclined drawing mode that an inclined core-pulling block is driven by a top plate through an inclined ejector rod, or an oil cylinder inclined drawing mode is driven by an oil cylinder to drive the inclined core-pulling block; the inclined-ejection inclined-pulling and oil-cylinder inclined-pulling mechanism occupies a large inner space of a mold, so that the inner structure of the mold is complex, the size of the mold is large, the cost is high, the conventional inclined-pulling mechanism is powered by a male mold, the assembly is difficult to allocate and assemble in the male mold, production must be stopped when the conventional inclined-pulling mechanism is damaged, the mold is repaired after the conventional inclined-pulling mechanism is removed, the time for removing and installing the mold, disassembling the mold and maintaining the mold is long, the production continuity is influenced, and the maintenance cost is high.

For example, the chinese patent document discloses a straight-top oblique-extraction demolding device [201721421758.8] for an injection mold, which includes a straight-top core block, an oblique-extraction core block, a spring, a straight-top rod, and a core. The straight core jacking block adopted by the utility model is provided with an inclined guide hole, the core is provided with a placement groove, and the placement groove is provided with an inclined guide surface; the spring is sleeved on the upper part of the inclined core-pulling block, the inclined core-pulling block and the spring are slidably positioned in the inclined guide hole, the straight core-pulling block is slidably positioned in the arranging groove, the lower part of the inclined core-pulling block is in sliding contact with the inclined guide surface, the lower part of the straight core-pulling block is fixedly connected with the upper end of the straight ejector rod, and the lower end of the straight ejector rod is fixedly connected with the top plate of the mold. The technical scheme achieves the purposes of simplifying the structure, reducing the occupied space and reducing the cost. The above technical problems have not yet been effectively solved.

Disclosure of Invention

The utility model aims to provide a method for disassembling an inclined core-pulling injection mold, aiming at the problems in the prior art.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides an injection mold looses core to one side, includes master model and the public mould that the interval set up, inside formation injection molding chamber behind master model and the public mould compound die, injection mold looses core to one side still includes:

the guide fixing seat is arranged on the male die;

the inclined drawing forming needle is connected with the guide fixing seat in an inclined sliding mode, and the forming end of the inclined drawing forming needle can penetrate into the injection molding cavity;

the shifting fork block is rotationally connected with the guide fixing seat or the male die; one end of the shifting fork block is connected with the inclined drawing forming needle;

the elastic mechanism is abutted against the other end of the shifting fork block; when the female die is separated from the male die, the elastic mechanism drives the shifting fork block to rotate so that the forming end of the inclined drawing forming needle is separated from the injection molding cavity; when the female die and the male die are closed, the male die drives one end of the shifting fork block to abut against the female die, and the shifting fork block is forced to rotate reversely, so that the forming end of the inclined drawing forming needle penetrates into the injection molding cavity again.

Furthermore, one end of the shifting fork block, which is close to the female die, is provided with a shifting fork arc-shaped convex part, and the shifting fork arc-shaped convex part can be in contact connection with the female die in a tangent mode.

Furthermore, when the die is in a die closing state, one end face of the female die close to the male die abuts against one end of the shifting fork block far away from the inclined drawing forming needle; when the mold is opened, a shifting contact mechanism is arranged between one end of the shifting fork block, which is far away from the inclined drawing molding needle, and the female mold.

Furthermore, the poking contact mechanism comprises a poking block poking part which is arranged on the female die and is close to one end face of the male die, a poking fork contact convex part is arranged at one end, far away from the inclined drawing molding needle, of the poking fork block, and when the female die is separated from the male die, the poking block poking part arranged on the female die is in contact with the poking fork contact convex part to drive the poking fork block to rotate reversely.

Furthermore, the elastic mechanism comprises a mounting blind hole formed in one side, close to the female die, of the male die, and a spring fixing pin which can move along the mounting blind hole and is elastically abutted to one side, far away from the female die, of the shifting fork block is arranged in the mounting blind hole.

Furthermore, one end of the shifting fork block is provided with a forming needle chute, and one end of the inclined drawing forming needle far away from the forming end is installed in the forming needle chute.

Furthermore, an inclined guide track hole is formed in the guide fixing seat, and a guide shaft inserted into the inclined guide track hole is arranged at one end, far away from the forming end, of the inclined drawing forming needle in a penetrating mode.

Furthermore, one end of the shifting fork block, which is close to the inclined drawing forming needle, is provided with a guide notch which is sleeved outside the guide shaft and is in clearance fit with the guide shaft.

Furthermore, the upper end of direction fixing base is equipped with rotates the groove just wear to be equipped with the pivot that imbeds in rotating the groove on the shifting fork piece.

Furthermore, one side of the male die, which is close to the female die, and the upper end of the shifting fork block are connected with a pressing block, and the bottom of the pressing block abuts against the upper end of the shifting fork block, which is close to the rotating shaft, and a cavity for limiting the range of the rotation angle of the shifting fork block is formed between the shifting fork block and the guide fixing seat.

Furthermore, a limiting ring for the end part of the spring fixing needle to penetrate through and limiting the moving range of the spring fixing needle is further arranged in the mounting blind hole.

Further, the elastic structure is a spring piece connected between the shifting fork block and the female die.

Furthermore, one side of the male die, which is close to the injection molding cavity, is provided with a yielding hole for the oblique drawing molding needle to pass through, and the male die is provided with a drawing withdrawing piece for the oblique drawing molding needle to pass through and communicating the yielding hole.

Further, the upper end of the female die is provided with a feed inlet communicated with the injection molding cavity.

The utility model also provides a method for disassembling the inclined core-pulling injection mold, which comprises the following steps:

s1, opening the mold, driving the male mold to move away from the female mold to enable the male mold and the female mold to generate relative displacement, and enabling the elastic mechanism to abut against the shifting fork block to force the inclined drawing molding needle to be separated from the injection molding cavity until enough mold opening space is formed between the female mold and the male mold;

s2, detaching the pressing block arranged on the surface of one side of the male die, directly taking out the shifting fork block and removing the sliding limitation of the inclined drawing forming needle;

s3, moving the inclined drawing forming needle along the inclined guide track hole away from one end of the injection molding cavity until the forming end of the inclined drawing forming needle is completely embedded into the guide fixing seat, and taking out the guide fixing seat;

and S4, removing the guide shaft on the inclined drawing forming needle, and respectively taking out the inclined drawing forming needle and the guide shaft.

Compared with the prior art, the inclined core-pulling injection mold has the following advantages:

1. through the matching of the die opening driving action and the elastic mechanism, when the die opening moves, the shifting block contact structure and the elastic mechanism drive the shifting fork block, the inclined drawing forming needle and other core components on the male die, and the shifting fork block, the inclined drawing forming needle and other core components on the male die are driven by the male die and are in linkage, so that the synchronous linkage displacement of the male die and the inclined drawing forming needle is realized, an inclined drawing forming driving oil cylinder and a refined inclined drawing core component are omitted, the occupied space of internal installation is saved, and the working efficiency is further improved.

2. Through will loosing core part to one side and install on public mould, by the external synchronous driving's of die sinking mode, still can accomplish the die sinking operation when making to draw molding needle slip displacement trouble to one side, the direction fixing base, draw molding needle and shift fork piece to one side all set up at the shaping injection molding face of public mould in addition, can be directly on the board of moulding plastics, need not to master model or public mould dismouting, can carry out core part's quick assembly disassembly and part change, improved dismouting efficiency greatly.

3. Set up elasticity mechanism, have the effect of auxiliary stay to the shift fork piece, ensure to take out the molding needle to one side and be in to take out the state to one side, avoid first mould and shift fork piece collision formation protection mechanism simultaneously when the compound die, still can accomplish the operation that the die sinking takes off the material after elasticity mechanism became invalid, make public mould and mould compound die state be in the locking state moreover, reinforcing mould compound die stability.

Drawings

Fig. 1 is a schematic structural view of an inclined core-pulling injection mold provided by the utility model.

Fig. 2 is a schematic cross-sectional structure view of the inclined core-pulling injection mold shown in fig. 1.

Fig. 3 is a schematic view of a male mold mounting structure of the inclined core pulling injection mold of fig. 1.

Fig. 4 is a schematic view of an inclined core pulling core component of the inclined core pulling injection mold of fig. 1.

Fig. 5 is an exploded view of an inclined core back core part of the inclined core back injection mold shown in fig. 1.

Fig. 6 is a schematic view of a second embodiment of the inclined core pulling injection mold shown in fig. 1.

In the figure, 10, a master model; 11. an injection molding cavity; 12. a feed inlet; 20. a male die; 21. a hole of abdication; 22. withdrawing the insert; 30. a guide fixing seat; 31. an inclined guide track hole; 40. obliquely drawing the molding needle; 41. a guide shaft; 50. a fork block; 51. a forming needle chute; 52. a guide notch; 53. a rotating groove; 54. a rotating shaft; 60. an elastic mechanism; 61. installing blind holes; 62. a spring fixing pin; 63. a confinement ring; 64. a spring member; 70. the contact mechanism is stirred; 71. a shifting block shifting part; 72. the shifting fork contacts the convex part; 73. a shifting block abutting part; 74. an arc-shaped convex part of the shifting fork; 80. and (7) briquetting.

Detailed Description

Example one

Fig. 1 to fig. 5 are schematic structural diagrams of an inclined core-pulling injection mold according to the present invention.

The inclined core pulling injection mold comprises a female mold 10 and a male mold 20 which are arranged at intervals; a guide fixing seat 30 arranged on the male die 20; a tapered forming pin 40 provided on the male mold 20; and a yoke block 50 provided on the male mold 20, and an elastic mechanism 60 provided on the yoke block 50. It is understood that the inclined core-pulling injection mold further includes other functional components and specific structures, such as electrical connection components, mounting structures, etc., which are well known to those skilled in the art, and therefore, the detailed description thereof is omitted here.

The female die 10 and the male die 20 are two forming blocks arranged at intervals, and the connecting surfaces are respectively provided with a forming convex cavity and a forming concave cavity. In the embodiment, the male mold 20 is connected with an external driving device to realize relative displacement for the female mold 10, so as to achieve the effects of mold closing and mold releasing, and the female mold 10 and the male mold 20 form an injection molding cavity 11 after mold closing. The upper end of the female die 10 is provided with a feed inlet 12 communicated with the injection molding cavity 11, and raw materials are poured into the injection molding cavity 11 from the feed inlet 12 on the female die 10, so that the interference with other parts is reduced, and the occupied space is reduced. It is contemplated that the gate 12 of the female mold half 10 may be provided on the male mold half 20 without outside diameter demolding effect or the gate 12 may be provided on the female mold half 10, and the same effects as described above can be achieved.

The guiding fixing seat 30 is disposed on the male mold 20, in this embodiment, the guiding fixing seat 30 is embedded in the male mold 20, and a yielding channel for obliquely drawing the molding pin 40 and one end of the shifting fork block 50 is provided inside the guiding fixing seat, so that the whole installation structure is more compact, and the occupied space required by installation is reduced.

Be equipped with slope direction orbit hole 31 on the direction fixing base 30 draw molding needle 40 to one side and keep away from the one end of shaping end and wear to be equipped with insert in guiding shaft 41 in the slope direction orbit hole 31, through guiding shaft 41 along slope direction orbit hole 31 reciprocating sliding realize draw molding needle 40 to one side with slope sliding connection between the direction fixing base 30, one side that public mould 20 is close to injection molding chamber 11 is equipped with the confession draw yielding hole 21 that molding needle 40 passed to one side, draw molding needle 40's shaping end to one side and pass yielding hole 21 and can penetrate injection molding chamber 11 is injectd and is drawn molding needle 40's bi-polar fulcrum to one side through yielding hole 21, makes the shaping end of drawing molding needle 40 to one side draw accurate position and the angle that gets into injection molding chamber 11 to one side. More optimally, the inclined drawing forming needle 40 is of a multi-section stepped shaft structure, the male die 20 is provided with a drawing and retreating sub 22 for the inclined drawing forming needle 40 to penetrate through and communicate with the abdicating hole 21, the drawing and retreating sub 22 increases the drawing and retreating smoothness of the inclined drawing forming needle 40, the sliding abrasion loss between the inclined drawing forming needle 40 and the abdicating hole 21 is reduced, when the abdicating hole 21 and the drawing and retreating sub 22 are set to be different diameters corresponding to the inclined drawing forming needle 40, the maximum length of the inclined drawing forming needle 40 entering the injection molding cavity 11 can be limited, and the inclined drawing forming needle 40 is ensured to be in place.

The shifting fork block 50 is rotationally connected with the guide fixing seat 30 or the male die 20; in this embodiment, the upper end of the guiding fixing seat 30 is provided with a rotating groove 53, the shifting fork block 50 is provided with a rotating shaft 54 inserted into the rotating groove 53, the rotating shaft 54 and the rotating fulcrum of the shifting fork block 50 are provided, and the rotating groove 53 is a semi-open structure, which is beneficial to the disassembly and assembly of the rotating shaft 54 and the shifting fork block 50. The male die 20 is connected with a pressing block 80 at one side close to the female die 10 and at the upper end of the shifting fork block 50, and the bottom of the pressing block 80 abuts against the upper end of the shifting fork block 50 close to the rotating shaft 54 and forms a cavity for limiting the range of the rotating angle of the shifting fork block 50 with the guide fixing seat 30. The briquetting 80 is installed and is formed the fixed spacing in the upper end of shifting fork piece 50 and direction fixing base 30 at shifting fork piece 50 upper end, has also formed the closure of rotating groove 53 simultaneously, and the cooperation holds the chamber and restricts shifting fork piece 50 turned angle scope. It is conceivable that the same technical effects as described above can be obtained when the turning groove 53 is provided on the male die 20.

One end of the shifting fork block 50 is provided with a forming needle chute 51, one end of the inclined drawing forming needle 40 far away from the forming end is installed in the forming needle chute 51, so that the connection compactness is enhanced, and the driving guide of the shifting fork block 50 is facilitated. One end of the shifting fork block 50 close to the inclined drawing forming needle 40 is provided with a guide notch 52 which is sleeved on the outer side of the guide shaft 41 and is in clearance fit with the guide shaft 41, and one end of the shifting fork block 50 is connected with the inclined drawing forming needle 40. Shifting fork piece 50 is for rotating the connection, and both ends displacement is the arc orbit, and direction breach 52 cover is established in the outside clearance fit's of guiding axle 41 mode, guarantees that guiding axle 41 can't break away from direction breach 52 and shifting fork piece 50 can be used in guiding axle 41 all the time simultaneously, changes shifting fork piece 50's rotation displacement into the slant displacement of taking out molding needle 40 to one side, and angular adjustment scope is great, and shifting fork piece 50's rotation volume conversion rate is high promptly, need not occupy too much mould inner space. It is conceivable that the guide notch 52 is also replaced by an arc-shaped groove structure.

The elastic mechanism 60 is abutted against the other end of the shifting fork block 50; when the female die 10 is separated from the male die 20, the elastic mechanism 60 drives the shifting fork block 50 to rotate so that the molding end of the inclined drawing molding needle 40 is separated from the injection molding cavity 11; when the female die 10 and the male die 20 are closed, the female die 10 drives the shifting fork block 50 to rotate reversely, so that the molding end of the inclined drawing molding needle 40 penetrates into the injection molding cavity 11 again. In the present embodiment, the resilient mechanism 60 includes a blind mounting hole 61 disposed on a side of the male mold 20 close to the female mold 10, and a spring fixing pin 62 capable of moving along the blind mounting hole 61 and elastically abutting on a side of the fork 50 away from the female mold 10 is disposed in the blind mounting hole 61. The blind mounting hole 61 is also provided with a limiting ring 63 for the end of the spring fixing pin 62 to pass through and limiting the moving range of the spring fixing pin 62. The mounting blind hole 61 limits the elastic telescopic guide of the spring fixing needle 62, the limiting ring 63 limits the upper end of the spring fixing needle 62 in the mounting blind hole 61, the spring fixing needle 62 is always in a compression state, and the generated elastic potential energy is propped against one end, far away from the inclined drawing forming needle 40, of the shifting fork block 50. Through the cooperation of the die opening driving action and the elastic mechanism 60, the core components such as the shifting fork block 50 and the inclined drawing forming needle 40 which are externally arranged on the male die 20 are driven by the male die 20 and are arranged on the male die 20 in a linkage manner, so that the synchronous linkage displacement of the die opening and die closing with the inclined drawing forming needle 40 is realized, an inclined drawing forming driving oil cylinder and a refined inclined drawing core component are omitted, the occupied space of the internal installation is saved, and the working efficiency is further improved.

One end of the shifting fork block 50 close to the female die is provided with a shifting fork arc-shaped convex part 74, and the shifting fork arc-shaped convex part 74 can be in tangential contact connection with the female die 10. The arc-shaped convex part 74 of the shifting fork ensures that the arc-shaped convex part 74 of the shifting fork and the end surface of the female die 10 are in tangent abutting joint when the shifting fork block 50 rotates in the die opening or die closing process, the stress of the contact end of the shifting fork block 50 is balanced and converted smoothly when the shifting fork block 50 rotates, the inclined drawing forming needle 40 moves more smoothly, the shifting fork block 50 is forced to move along with the first die 10, and the inclined drawing forming needle 40 enters the injection molding cavity 11 again. Conceivably, a shifting block abutting part 73 matched with the shifting fork arc-shaped convex part 74 can be arranged at one end of the female die 10, so that the detachable assembly arrangement is realized, and the structural design layout of the die is facilitated.

When the female die is in a die closing state, one end face, close to the male die 20, of the female die 10 abuts against one end, far away from the inclined drawing forming pin 40, of the shifting fork block 50; when opening the mold, a toggle contact mechanism 70 is arranged between one end of the shifting fork block 50 far away from the inclined drawing forming needle 40 and the female mold 10.

The toggle contact mechanism 70 comprises a toggle block toggle part 71 which is arranged on one end face of the female die 10 close to the male die 20, a toggle contact convex part 72 is arranged on one end of the toggle block 50 far away from the inclined drawing molding needle 40, when the female die 10 is separated from the male die 20, the toggle block toggle part 71 which is arranged on the female die 10 is contacted with the toggle contact convex part 72 to drive the toggle block 50 to rotate reversely, the driving force for opening the die is transmitted to the toggle block 50 through the toggle block toggle part 71, and when the toggle block toggle part 71 is completely separated from the toggle contact convex part 72, the toggle block toggle part 71 is abutted on the toggle block 50 by an elastic mechanism 60 to keep the state, so that when the female die 10 is closed again, the toggle block toggle part 71 cannot be in moving interference with the toggle contact convex part 72. The elastic mechanism 60 has an auxiliary supporting effect on the shifting fork block 50, so that the inclined drawing molding needle 40 is ensured to be in an inclined drawing state, meanwhile, a protection mechanism is avoided when the female die 10 collides with the shifting fork block 50 during die assembly, the die opening and stripping operation can be still completed after the elastic mechanism 60 fails, the die assembly state of the male die 20 and the female die 10 is in a locking state, and the die assembly stability of the die is enhanced.

It is conceivable that the shifting block abutting part 73 and the shifting block shifting part 71 are of an integral structure and are integrally arranged on the female die 10, and certainly, the shifting block abutting part and the shifting block shifting part can be arranged in a split mode.

s1, opening the mold, driving the male mold 20 to move away from the female mold 10 to enable relative displacement between the male mold and the female mold, and the elastic mechanism 60 abuts against the shifting fork block 50 to force the inclined drawing molding needle 40 to be separated from the injection molding cavity 11 until a sufficient mold opening space is formed between the female mold 10 and the male mold 20;

s2, detaching the pressing block 80 arranged on the surface of one side of the male die 20, directly taking out the shifting fork block 50, and removing the sliding limitation of the inclined drawing forming needle 40;

s3, moving the inclined drawing forming needle 40 along the inclined guide track hole 31 far away from one end of the injection molding cavity 11 until the forming end of the inclined drawing forming needle 40 is completely embedded into the guide fixing seat 30, and taking out the guide fixing seat 30;

s4, the guide shaft 41 of the diagonal draw forming pin 40 is removed, and the diagonal draw forming pin 40 and the guide shaft 41 are taken out, respectively.

And reversely pushing the component assembling process.

This injection mold of loosing core to one side is through will loosing core part to one side and installing on public mould 20, by public mould 10 synchronous drive's mode, when making to draw molding needle 40 slip displacement trouble to one side, still can accomplish the die sinking operation, replace original part of loosing core to one side and drive assembly all set up the problem that leads to the maintenance to change the difficulty on public mould, and direction fixing base 30, draw molding needle 40 and shifting fork piece 50 to one side and all set up the shaping injection molding face at public mould 20, can directly carry out quick assembly disassembly and part change, the dismouting efficiency has been improved greatly.

Example two

Referring to fig. 5, the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the only difference is that: the resilient structure is a spring member 64 connected between the yoke block 50 and the female die 10. One end of the spring part 64 is connected to the female die 10, the other end of the spring part is connected to the shifting fork block 50, and when the die is closed, the spring part 64 is compressed and abutted to the shifting fork block 50; when the female die 10 is disconnected from the shifting fork block 50 in the die opening state, the spring member 64 is in a stretching state to maintain the position state of the shifting fork block 50.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides an injection mold looses core to one side, includes master model and the public mould that the interval set up, inside formation injection molding chamber behind master model and the public mould compound die, its characterized in that, the injection mold looses core to one side still includes:

the guide fixing seat is arranged on the male die;

2. The inclined core pulling injection mold according to claim 1, wherein one end, close to the female mold, of the shifting fork block is provided with a shifting fork arc-shaped convex portion, and the shifting fork arc-shaped convex portion can be in tangential contact connection with the female mold.

3. The inclined core pulling injection mold according to claim 1, wherein when the mold is in a mold closing state, one end face of the female mold, which is close to the male mold, is abutted against one end of the shifting fork block, which is far away from the inclined core pulling molding needle; when the mold is opened, a toggle contact mechanism is arranged between one end of the shifting fork block, which is far away from the inclined drawing molding needle, and the female mold.

4. The inclined core pulling injection mold according to claim 3, wherein the shifting contact mechanism comprises a shifting block shifting part which is arranged on the female mold and close to one end face of the male mold, a shifting fork contact convex part is arranged at one end of the shifting fork block, which is far away from the inclined core pulling molding needle, and when the female mold is separated from the male mold, the shifting block shifting part arranged on the female mold is in contact with the shifting fork contact convex part to drive the shifting fork block to rotate reversely.

5. The inclined core pulling injection mold according to claim 1, wherein the elastic mechanism comprises a blind mounting hole formed in one side, close to the female mold, of the male mold, and a spring fixing pin which can move along the blind mounting hole and is elastically abutted to one side, far away from the female mold, of the shifting fork block is arranged in the blind mounting hole.

6. The inclined core pulling injection mold according to claim 1, wherein one end of the shifting fork block is provided with a forming needle chute, and one end, far away from the forming end, of the inclined pulling forming needle is installed in the forming needle chute.

7. The inclined core pulling injection mold according to claim 1 or 6, wherein an inclined guide track hole is formed in the guide fixing seat, and a guide shaft inserted into the inclined guide track hole is arranged at one end, far away from the molding end, of the inclined pulling molding needle in a penetrating manner.

8. The inclined core pulling injection mold according to claim 7, wherein a guide notch which is sleeved outside the guide shaft and is in clearance fit with the guide shaft is formed in one end, close to the inclined pulling forming needle, of the shifting fork block.

9. The inclined core pulling injection mold according to claim 1, wherein a rotating groove is formed in the upper end of the guide fixing seat, and a rotating shaft embedded into the rotating groove penetrates through the shifting fork block.

10. The inclined core pulling injection mold according to claim 9, wherein a pressing block is connected to one side of the male mold, which is close to the female mold, and the upper end of the shifting fork block, and the bottom of the pressing block abuts against the upper end of the shifting fork block, which is close to the rotating shaft, and a cavity for limiting the range of the rotating angle of the shifting fork block is formed between the pressing block and the guide fixing seat.

11. The inclined core pulling injection mold according to claim 5, wherein a limiting ring for allowing the end of the spring fixing pin to pass through and limiting the moving range of the spring fixing pin is further arranged in the mounting blind hole.

12. The angle core pulling injection mold according to claim 1, wherein the elastic structure is a spring piece connected between the shifting fork block and the female mold.

13. The inclined core pulling injection mold according to claim 1, wherein a yielding hole for the inclined pulling forming needle to pass through is formed in one side, close to the injection molding cavity, of the male mold, and a pulling and withdrawing piece which is used for the inclined pulling forming needle to pass through and is communicated with the yielding hole is formed in the male mold.

14. The inclined core pulling injection mold according to claim 1, wherein a feed inlet communicated with the injection molding cavity is formed in the upper end of the female mold.

15. The method for disassembling the inclined core pulling injection mold according to any one of claims 1 to 14, characterized by comprising the steps of:

s1, opening the mold, driving the male mold to be far away from the female mold to enable the male mold and the female mold to generate relative displacement, and enabling the elastic mechanism to abut against the shifting fork block to force the inclined-drawing molding needle to be separated from the injection molding cavity until enough mold opening space is formed between the female mold and the male mold;