CN217454790U

CN217454790U - Injection mold extension ejecting device

Info

Publication number: CN217454790U
Application number: CN202220364767.2U
Authority: CN
Inventors: 周振豪; 朱林
Original assignee: Suzhou Both Tooling & Moulding Co ltd
Current assignee: Suzhou Both Tooling & Moulding Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-09-20
Anticipated expiration: 2032-02-22

Abstract

The utility model relates to an injection mold technical field just discloses an injection mold extension ejecting device, including the base, fixed mounting has lower module on the base, has set the module down on the module, has seted up the mold core down on the module, has seted up the hole of moulding plastics on going up the module, and the recess has been seted up to the inside bottom surface of mold core, and the inside activity joint of recess has the roof, and movable cavity has been seted up to the inside of lower module, and the inside of activity cavity is provided with supplementary ejecting device. The utility model discloses in, when the mould accomplishes the back when using, start driving motor and drive two extrusion pieces of threaded rod rotation control towards one side that is close to each other, along with constantly being close to of two extrusion pieces, lead to the kicking block by its extrusion rebound to drive the connecting block and upwards promote the roof, hold up the inside injection molding of mold core through the roof at last, reach the effect of quick drawing of patterns, and then avoided the problem of current injection mold drawing of patterns difficulty, improve work efficiency.

Description

Injection mold extension ejecting device

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold extension ejecting device.

Background

The mould is various moulds and tools for obtaining required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, the processing of the appearance of the object is realized mainly by changing the physical state of the formed material, the types of the mould are various, and the mould can be divided into a hardware mould, a plastic mould and a special mould according to the difference of the formed material.

When utilizing injection mold production instrument today, carry out the drawing of patterns operation too troublesome to forming tool after injection moulding, very inconvenient, extravagant a large amount of time causes injection mold's production efficiency to hang down excessively. Therefore, we propose an injection mold extension ejection device.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Not enough to prior art, the utility model provides an injection mold extension ejecting device has solved foretell problem.

Technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an injection mold extension ejecting device, includes the base, fixed mounting has module down on the base, set the module down on the module, the mold core has been seted up on the module down, upward the hole of moulding plastics has been seted up on the module, the recess has been seted up to the inside bottom surface of mold core, the inside activity joint of recess has the roof, movable cavity has been seted up to the inside of module down, the inside of activity cavity is provided with supplementary ejecting device.

Preferably, the auxiliary ejection device comprises an ejector block, a connecting block, a threaded rod, extrusion blocks and a driving motor, the ejector block is arranged in the movable cavity, the upper wall surface of the ejector block is fixedly connected with the connecting block, the connecting block extends upwards to enter the groove on the mold core, the upper end of the connecting block is fixedly connected with the lower wall surface of the ejector block, the threaded rod is movably mounted in the movable cavity through a bearing, two opposite threaded surfaces are arranged on the threaded rod, the driving motor is fixedly mounted at a position, corresponding to the threaded rod, of the outer wall surface of the lower module, the output end of the driving motor penetrates through the movable cavity and extends into the movable cavity and is fixedly connected with one end of the threaded rod, two extrusion blocks are symmetrically arranged in the movable cavity, the two extrusion blocks are positioned below the ejector block, and both the two extrusion blocks are provided with threaded holes, and the two extrusion blocks are respectively in threaded connection with two thread surfaces on the threaded rod through threaded holes.

Preferably, the top block is of a trapezoidal step-shaped structure, the top block is gradually narrowed from the upper direction, the connecting block is movably sleeved with the spring, the upper end of the spring is fixedly connected with the inner upper wall surface of the movable cavity, and the lower end of the spring is in contact with the upper wall surface of the top block.

Preferably, one side of the upper end of each of the two extrusion blocks, which is close to the ejector block, is provided with an auxiliary notch matched with the ejector block in shape and size, and the auxiliary notches are in contact with one side wall surface adjacent to the ejector block.

Preferably, the inside of activity cavity is located the below fixed mounting of threaded rod has spacing post, two spacing hole has all been seted up to the position that corresponds spacing post on the extrusion piece, spacing post runs through the inside in two spacing holes, fixed mounting has two stoppers on the threaded rod, two the stopper is located the both sides of two extrusion pieces respectively.

Preferably, the lower wall surface of the upper module is fixedly provided with two positioning columns, and the upper wall surface of the lower module is provided with two positioning grooves corresponding to the two positioning columns.

Advantageous effects

Compared with the prior art, the utility model provides an injection mold extension ejecting device possesses following beneficial effect:

1. because be provided with two relative flanks on the threaded rod, make two extrusion pieces can produce different moving direction because of the difference of threaded rod rotation direction, after the mould is accomplished when using, start driving motor drives two extrusion pieces of threaded rod rotation control towards the one side that is close to each other, along with constantly being close to of two extrusion pieces, lead to the kicking block by its extrusion rebound, thereby drive the connecting block and upwards promote the roof, hold up the injection molding inside the mold core through the roof at last, reach the effect of quick drawing of patterns, and then avoided the problem of current injection mold drawing of patterns difficulty, and the work efficiency is improved.

2. Because the ejector block is of a trapezoidal step-shaped structure in cross section, when the two extrusion blocks extrude the ejector block upwards, the ejector block extrudes upwards in a sectional mode, so that the effect of jacking the injection molding piece gradually in a multi-section mode is achieved, and the problem that injection molding is damaged due to direct ejection is avoided.

3. Through set up on the extrusion piece with the supplementary breach of kicking block outside shape size looks adaptation, at the supplementary breach of in-process cooperation of extrusion piece extrusion kicking block, can reach and reduce the wearing and tearing to between equipment to improve equipment's life.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the point B in fig. 1 according to the present invention.

In the figure: 1. a base; 2. a lower module; 3. a mold core; 4. an upper module; 5. injection molding holes; 6. a positioning column; 7. positioning a groove; 8. a top plate; 9. a movable cavity; 10. a top block; 11. connecting blocks; 12. a spring; 13. a threaded rod; 14. extruding the block; 15. a threaded hole; 16. a limiting column; 17. a limiting hole; 18. a limiting block; 19. an auxiliary notch; 20. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an injection mold extension ejection device comprises a base 1, a lower module 2 is fixedly mounted on the base 1, an upper module 4 is arranged on the lower module 2 in a matching manner, a mold core 3 is arranged on the lower module 2, an injection molding hole 5 is arranged on the upper module 4, a groove is arranged on the inner bottom surface of the mold core 3, a top plate 8 is movably clamped inside the groove, a movable cavity 9 is arranged inside the lower module 2, and an auxiliary ejection device is arranged inside the movable cavity 9.

The auxiliary ejection device comprises an ejector block 10, a connecting block 11, a threaded rod 13, extrusion blocks 14 and a driving motor 20, wherein the ejector block 10 is arranged inside a movable cavity 9, the upper wall surface of the ejector block 10 is fixedly connected with the connecting block 11, the connecting block 11 extends upwards to enter the groove on the mold core 3, the upper end of the connecting block 11 is fixedly connected with the lower wall surface of the ejector plate 8, the threaded rod 13 is movably arranged inside the movable cavity 9 through a bearing, two opposite threaded surfaces are arranged on the threaded rod 13, the driving motor 20 is fixedly arranged at the position, corresponding to the threaded rod 13, of the outer wall surface of the lower mold block 2, the output end of the driving motor 20 penetrates through the movable cavity 9 and is fixedly connected with one end of the threaded rod 13, the rotation direction of the threaded rod 13 can be controlled by arranging the driving motor 20, the two extrusion blocks 14 are symmetrically arranged inside the movable cavity 9, and the two extrusion blocks 14 are positioned below the ejector block 10, and two extrusion pieces 14 are all provided with threaded holes 15, the inside of threaded hole 15 is provided with the screw thread that matches with the screw thread face on the threaded rod 13, two extrusion pieces 14 pass through threaded hole 15 respectively with two screw thread face threaded connection on the threaded rod 13.

The kicking block 10 is trapezoidal echelonment structure for the cross section, and kicking block 10 from the top direction narrows down gradually, and the activity has cup jointed spring 12 on the connecting block 11, and wall fixed connection is gone up with movable cavity 9's inside to the upper end of spring 12, and the lower extreme of spring 12 contacts with the kicking block 10 upper wall, receives the influence of spring 12 elasticity, and during the recess of mould core 3 inside can be withdrawed automatically to roof 8 when not taking off the mould, and then do not influence the use.

Auxiliary gaps 19 matched with the shape and the size of the top block 10 are formed in one side, close to the top block 10, of the upper ends of the two extrusion blocks 14, and the two auxiliary gaps 19 are in contact with one side wall face, adjacent to the top block 10.

The inside of activity cavity 9 is located the below fixed mounting of threaded rod 13 has spacing post 16, spacing hole 17 has all been seted up to the position that corresponds spacing post 16 on two extrusion pieces 14, spacing post 16 runs through the inside in two spacing holes 17, can correspond two extrusion pieces 14 through setting up spacing post 16 and play a spacing effect, and the cooperation spacing hole 17 can guarantee that two extrusion pieces 14 are steady to be removed, fixed mounting has two stoppers 18 on threaded rod 13, two stoppers 18 are located the both sides of two extrusion pieces 14 respectively, can play limiting displacement to two extrusion pieces 14 through setting up two stoppers 18.

Two positioning columns 6 are fixedly mounted on the lower wall surface of the upper module 4, two positioning grooves 7 are formed in the positions, corresponding to the two positioning columns 6, of the upper wall surface of the lower module 2, and the positioning columns 6 can be inserted into the corresponding positioning grooves 7 when the lower module is used, so that the accuracy of the lower module 2 and the upper module 4 in closing is guaranteed.

Principle of operation

Because be provided with two relative flanks on the threaded rod 13, make two extrusion piece 14 can produce different moving direction because of threaded rod 13 rotation direction's difference, when the mould is accomplished when using, start driving motor 20 and drive two extrusion piece 14 of threaded rod 13 rotation control one side that is close to each other, along with constantly being close to of two extrusion piece 14, lead to kicking block 10 by its extrusion rebound, thereby drive connecting block 11 upwards to promote roof 8, hold up the inside injection molding of mold core 3 through roof 8 at last, reach the effect of quick drawing of patterns, and then avoided the problem of current injection mold drawing of patterns difficulty, and the work efficiency is improved.

Because the cross section of the ejector block 10 is in a trapezoid step-shaped structure, when the two extrusion blocks 14 extrude the ejector block 10 upwards, the ejector block 10 extrudes upwards in a sectional mode, so that the effect of jacking the injection molding piece in a multistage mode step by step is achieved, and the problem that injection molding is damaged due to direct ejection is avoided.

The auxiliary notch 19 matched with the shape and the size of the outer side of the top block 10 is formed in the extrusion block 14, and the auxiliary notch 19 is matched in the process that the extrusion block 14 extrudes the top block 10, so that the abrasion between equipment can be reduced, and the service life of the equipment is prolonged.

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

Claims

1. The utility model provides an injection mold extension ejecting device, includes base (1), fixed mounting has lower module (2) on base (1), set on lower module (2) and go up module (4), mold core (3) have been seted up on lower module (2), go up and seted up injection hole (5), its characterized in that on module (4): the bottom surface of the inner part of the mold core (3) is provided with a groove, the inner part of the groove is movably clamped with a top plate (8), the inner part of the lower module (2) is provided with a movable cavity (9), and the inner part of the movable cavity (9) is provided with an auxiliary ejection device.

2. The injection mold extended ejection device of claim 1, wherein: the auxiliary ejection device comprises an ejector block (10), a connecting block (11), a threaded rod (13), an extrusion block (14) and a driving motor (20), the ejector block (10) is arranged inside the movable cavity (9), the upper wall surface of the ejector block (10) is fixedly connected with the connecting block (11), the connecting block (11) upwards extends into the upper groove of the mold core (3), the upper end of the connecting block (11) is fixedly connected with the lower wall surface of the top plate (8), the threaded rod (13) is movably arranged inside the movable cavity (9) through a bearing, two opposite threaded surfaces are arranged on the threaded rod (13), the driving motor (20) is fixedly arranged at the position of the outer wall surface of the lower mold block (2) corresponding to the threaded rod (13), the output end of the driving motor (20) penetrates through the inner part extending to the movable cavity (9) and is fixedly connected with one end of the threaded rod (13), the movable cavity is characterized in that two extrusion blocks (14) are symmetrically arranged inside the movable cavity (9), the two extrusion blocks (14) are located below the jacking block (10), threaded holes (15) are formed in the two extrusion blocks (14), and the two extrusion blocks (14) are in threaded connection with two threaded surfaces on the threaded rod (13) through the threaded holes (15).

3. The injection mold extended ejection device of claim 2, wherein: the cross section of the ejector block (10) is of a trapezoid stepped structure, the ejector block (10) is guided to narrow gradually from the top, a spring (12) is movably sleeved on the connecting block (11), the upper end of the spring (12) is fixedly connected with the inner upper wall surface of the movable cavity (9), and the lower end of the spring (12) is in contact with the upper wall surface of the ejector block (10).

4. An injection mold extended ejection apparatus as in claim 2, wherein: two one side that extrusion piece (14) upper end is close to kicking block (10) all sets up supplementary breach (19) with kicking block (10) shape size looks adaptation, two supplementary breach (19) contact with the lateral wall face that kicking block (10) are adjacent.

5. An injection mold extended ejection apparatus as in claim 2, wherein: the inside of activity cavity (9) is located the below fixed mounting of threaded rod (13) has spacing post (16), two spacing hole (17) have all been seted up to the position that corresponds spacing post (16) on extrusion piece (14), spacing post (16) run through the inside in two spacing holes (17), fixed mounting has two stopper (18) on threaded rod (13), two stopper (18) are located the both sides of two extrusion pieces (14) respectively.

6. The injection mold extended ejection device of claim 1, wherein: two positioning columns (6) are fixedly mounted on the lower wall surface of the upper module (4), and two positioning grooves (7) are formed in the positions, corresponding to the two positioning columns (6), of the upper wall surface of the lower module (2).