CN217258020U

CN217258020U - Injection mold for injection molding machine

Info

Publication number: CN217258020U
Application number: CN202220646347.3U
Authority: CN
Inventors: 张红武
Original assignee: Chuzhou Pinjie Molding Co ltd
Current assignee: Chuzhou Pinjie Molding Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-23
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to an injection mold technical field, and an injection mold for injection molding machine is disclosed, including lower module and last module, set the module on the module down, go up and offer the sprue that is used for annotating the material in the module, the mold core has been seted up on the module down, movable cavity has been seted up to the inside of module down, movable cavity is located the below of mold core, the inside bottom surface fixed mounting of activity cavity has driving motor, driving motor goes up output fixed connection screw rod, two relative screw thread faces have been seted up on the outer wall of screw rod, connecting hole one has been seted up to the inside bottom surface of sprue, the inside activity joint of connecting hole one has the heavy piece of sinking, connecting hole two of two U-shaped are seted up to the inside bottom surface symmetry of sprue. The utility model discloses in, the torsion that produces when removing through heavy piece and two kicking blocks reaches the effect of drawing of patterns, and the work piece after the last drawing of patterns is ejecting through two kicking blocks, has avoided lower through artifical drawing of patterns efficiency, the problem that wastes time and energy.

Description

Injection mold for injection molding machine

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold for injection molding machine.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple designs and varieties, simple and complex shapes, small and precise product size, easy replacement of products, capability of forming workpieces with complex shapes, and suitability for the fields of mass production, products with complex shapes and the like.

Aiming at the defects that most of the existing injection molds do not have the demolding function, the manual demolding efficiency is low, and the time and the labor are wasted. To this end, we propose an injection mold for an injection molding machine.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Not enough to prior art, the utility model provides an injection mold for injection molding machine has solved foretell problem.

Technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold for an injection molding machine comprises a lower module and an upper module, wherein the lower module is provided with the upper module, the upper module is provided with a material filling port for filling materials, the lower module is provided with a mold core, the lower module is internally provided with a movable cavity, the movable cavity is positioned below the mold core, the bottom surface inside the movable cavity is fixedly provided with a driving motor, the upper output end of the driving motor is fixedly connected with a screw rod, the outer wall surface of the screw rod is provided with two opposite thread surfaces, a first connecting hole is formed in the inner bottom surface of the injection port, a sinking block is movably clamped in the first connecting hole, two U-shaped connecting holes II are symmetrically arranged on the bottom surface of the inner part of the injection port, the inner parts of the two connecting holes II are movably clamped with a jacking block, the sinking block is positioned between the two jacking blocks, and an auxiliary demoulding mechanism is arranged in the movable cavity.

Preferably, the auxiliary demoulding mechanism comprises linkage plates, linkage rings and a connecting column, two linkage plates are symmetrically arranged in the movable cavity up and down, the left and right side walls inside the movable cavity are provided with limiting grooves corresponding to the positions of the two linkage plates, the left and right ends of the two linkage plates are movably clamped inside the corresponding limiting grooves, the two linkage plates are provided with threaded holes, the two linkage plates are respectively in threaded connection with two opposite threaded surfaces on the screw rod through the threaded holes, the lower wall surface of the sinking block is fixedly connected with a linkage ring, the lower wall surface and the upper side of the linkage ring are fixedly connected with the upper wall surface of the linkage plate, the lower wall surface of the jacking block is symmetrically and fixedly connected with two connecting columns, the linkage plate is located between the two connecting columns, and the connecting columns are mutually close to the lower end and the lower side of one side wall surface and fixedly connected with the front side wall surface and the rear side wall surface of the linkage plate.

Preferably, a sealing groove is formed in the position, surrounding the injection port, of the upper wall surface of the lower module, the sealing groove is a square groove, a sealing gasket is fixedly mounted at the position, corresponding to the sealing groove, of the lower wall surface of the upper module, and the shape and size of the sealing gasket are matched with the shape and size of the inner part of the sealing groove.

Preferably, the four corners of the upper wall surface of the lower module are fixedly provided with guide rods, the lower wall surface of the upper module is provided with four guide holes for movably clamping the guide rods corresponding to the four guide rods, and the upper module is movably clamped with the lower module through the four guide holes.

Preferably, the upper end of the outer wall surface of the screw rod is fixedly connected with a limiting block, and the limiting block is positioned above the linkage plate.

Advantageous effects

Compared with the prior art, the utility model provides an injection mold for injection molding machine possesses following beneficial effect:

(1) the utility model discloses a drawing of patterns, start driving motor and drive the screw rod when having moulded plastics and rotate, because two linkage boards respectively with the screw rod on two different thread face threaded connection, consequently the moving direction of two linkage boards is different when the screw rod rotates, control two linkage boards and move towards one side that is close to each other when carrying out the drawing of patterns, make the upside linkage board drive the heavy piece downstream, the downside linkage board drives two kicking blocks rebound, the torsion that produces when removing through heavy piece and two kicking blocks reaches the effect of drawing of patterns down, the work piece after the last drawing of patterns is ejecting through two kicking blocks, avoided lower through artifical drawing of patterns efficiency, the problem of wasting time and energy.

(2) Because the kicking block is the U-shaped, consequently when the kicking block ejecting to the work piece after the completion of moulding plastics, can carry out effectual protection to four corners of work piece, avoid the problem that the damage appears when the drawing of patterns.

(3) When the injection molding is carried out, the lower module and the upper module are closed together, and then the sealing gasket is movably clamped in the sealing groove, so that the sealing performance of the joint of the lower module and the upper module is guaranteed, and the leakage problem is avoided.

Drawings

FIG. 1 is a perspective semi-sectional view of the present invention;

FIG. 2 is a perspective view of the present invention;

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

fig. 4 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a lower module; 2. an upper module; 3. a material injection port; 4. a guide bar; 5. a guide hole; 6. a mold core; 7. a sealing groove; 8. sealing gaskets; 9. a first connecting hole; 10. sinking the block; 11. a second connecting hole; 12. a top block; 13. a movable cavity; 14. a drive motor; 15. a screw; 16. a linkage plate; 17. a threaded hole; 18. a limiting groove; 19. a link ring; 20. connecting columns; 21. and a limiting block.

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. 1-4, an injection mold for an injection molding machine comprises a lower module 1 and an upper module 2, the lower module 1 is provided with the upper module 2, the upper module 2 is provided with a material injection port 3 for injecting material, the lower module 1 is provided with a mold core 6, the lower module 1 is provided with a movable cavity 13 inside, the movable cavity 13 is located below the mold core 6, the inner bottom surface of the movable cavity 13 is fixedly provided with a driving motor 14, the upper output end of the driving motor 14 is fixedly connected with a screw rod 15, the outer wall surface of the screw rod 15 is provided with two opposite thread surfaces, the inner bottom surface of the material injection port 3 is provided with a connecting hole one 9, the inner part of the connecting hole one 9 is movably clamped with a sinking block 10, the shape and size of the sinking block 10 are matched with the inner shape and size of the connecting hole one 9, the inner bottom surface of the material injection port 3 is symmetrically provided with two U-shaped connecting holes two 11, the inner parts of the two connecting holes two 11 are movably clamped with a jacking block 12, the shape and size of the ejector block 12 are matched with the shape and size of the inner part of the second connecting hole 11, and the ejector block 12 is U-shaped, so that when the ejector block 12 ejects out a workpiece after injection molding is completed, four corners of the workpiece can be effectively protected, damage to the workpiece is avoided during demolding, the sinking block 10 is located between the two ejector blocks 12, and the auxiliary demolding mechanism is arranged inside the movable cavity 13.

The auxiliary demoulding mechanism comprises linkage plates 16, linkage rings 19 and connecting columns 20, two linkage plates 16 are symmetrically arranged in the movable cavity 13 from top to bottom, limiting grooves 18 are respectively arranged at the positions of the left side wall and the right side wall in the movable cavity 13 corresponding to the two linkage plates 16, the left end and the right end of each of the two linkage plates 16 are movably clamped in the corresponding limiting grooves 18, the limiting effect on the moving direction of the two linkage plates 16 can be achieved through the two limiting grooves 18, threaded holes 17 are respectively arranged on the two linkage plates 16, the two linkage plates 16 are respectively in threaded connection with two opposite threaded surfaces on a screw 15 through the threaded holes 17, the lower wall surface of a sinking block 10 is fixedly connected with the linkage rings 19, the lower wall surface of the linkage rings 19 is fixedly connected with the upper wall surface of the upper linkage plate 16, the lower wall surfaces of the two jacking blocks 12 are respectively and fixedly connected with the two connecting columns 20, the two linkage plates 16 are positioned between the two connecting columns 20, the lower ends of the two connecting columns 20 close to each other on one side wall surface are fixedly connected with the front and rear side wall surfaces of the lower side linkage plate 16.

The upper wall surface of the lower module 1 is provided with a sealing groove 7 around the position of the injection port 3, the sealing groove 7 is a square groove, the lower wall surface of the upper module 2 is fixedly provided with a sealing gasket 8 corresponding to the position of the sealing groove 7, and the shape and the size of the sealing gasket 8 are matched with the inner shape and the size of the sealing groove 7.

The equal fixed mounting in four corners of the last wall of lower module 1 has guide arm 4, and four guide holes 5 that are used for activity joint guide arm 4 are seted up to the position that corresponds four guide arms 4 to the lower wall of last module 2, and it is in the same place with lower module 1 activity joint through four guide holes 5 to go up module 2.

The upper end of the outer wall surface of the screw 15 is fixedly connected with a limiting block 21, the limiting block 21 is positioned above the upper side linkage plate 16, the limiting effect can be achieved on the moving range of the upper side linkage plate 16 through the installed limiting block 21, and the problem that the upper side linkage plate 16 is separated from the screw 15 is avoided.

Principle of operation

After injection molding, the driving motor 14 is started to drive the screw 15 to rotate, and the two linkage plates 16 are respectively in threaded connection with two different thread surfaces on the screw 15, so that the two linkage plates 16 have different moving directions when the screw 15 rotates, the two linkage plates 16 are controlled to move towards one side close to each other when demolding is carried out, the upper linkage plate 16 drives the lower sinking block 10 to move downwards, the lower linkage plate 16 drives the two jacking blocks 12 to move upwards, demolding effect is achieved through torsion generated when the lower sinking block 10 and the two jacking blocks 12 move, and finally, a workpiece after demolding is ejected through the two jacking blocks 12, so that the problems of low efficiency and time and labor waste caused by manual demolding are solved.

Because the kicking block 12 is the U-shaped, consequently when the kicking block 12 is ejecting to the work piece after the completion of moulding plastics, can carry out effectual protection to four corners of work piece, avoid appearing the problem of damaging when the drawing of patterns.

When moulding plastics, lower module 1 closes with last module 2 and is in the same place back seal gasket 8 activity joint in the inside of seal groove 7, and then guarantees the leakproofness of module 1 and last module 2 junction down, has avoided the problem of weeping to appear.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 for injection molding machine, includes module (1) and last module (2) down, set module (2) down on module (1), go up and offer sprue (3) that are used for annotating the material on module (2), mold core (6), its characterized in that have been seted up on module (1) down: a movable cavity (13) is arranged in the lower module (1), the movable cavity (13) is positioned below the mold core (6), a driving motor (14) is fixedly arranged on the inner bottom surface of the movable cavity (13), the output end of the driving motor (14) is fixedly connected with a screw rod (15), the outer wall surface of the screw rod (15) is provided with two opposite thread surfaces, a first connecting hole (9) is formed in the bottom surface of the inner part of the injection port (3), a sinking block (10) is movably clamped in the first connecting hole (9), two U-shaped connecting holes II (11) are symmetrically formed in the bottom surface of the inner part of the injection port (3), the inner parts of the two connecting holes II (11) are movably clamped with ejector blocks (12), the sinking block (10) is positioned between the two jacking blocks (12), and an auxiliary demoulding mechanism is arranged in the movable cavity (13).

2. The injection mold for injection molding machines according to claim 1, characterized in that: the auxiliary demoulding mechanism comprises a linkage plate (16), a linkage ring (19) and connecting columns (20), wherein two linkage plates (16) are symmetrically arranged on the upper and lower sides of the interior of the movable cavity (13), limiting grooves (18) are respectively formed in positions, corresponding to the two linkage plates (16), of the left side wall and the right side wall of the interior of the movable cavity (13), two limiting grooves (18) are respectively formed in the left end and the right end of each linkage plate (16) in a clamping mode and are respectively connected with the corresponding limiting grooves (18) in a clamping mode, threaded holes (17) are respectively formed in the two linkage plates (16), the two linkage plates (16) are respectively in threaded connection with two opposite threaded surfaces on a screw rod (15) through the threaded holes (17), the lower wall surface of the lower sinking block (10) is fixedly connected with the linkage ring (19), the lower wall surface of the linkage ring (19) is fixedly connected with the upper wall surface of the linkage plate (16), and the lower wall surfaces of the two jacking blocks (12) are respectively and are symmetrically and fixedly connected with the two connecting columns (20), the two linkage plates (16) are positioned between the two connecting columns (20), and the lower end of one side wall surface, close to each other, of the two connecting columns (20) is fixedly connected with the lower side of the front side wall surface and the rear side wall surface of the linkage plates (16).

3. The injection mold for injection molding machines according to claim 1, characterized in that: the utility model discloses a sealing structure, including lower module (1), last wall of lower module (1) has seted up seal groove (7) around the position of sprue (3), seal groove (7) are the groove of square frame shape, the lower wall of going up module (2) is corresponding to the fixed position of seal groove (7) and is installed seal gasket (8), the shape size of seal gasket (8) and the inside shape size looks adaptation of seal groove (7).

4. The injection mold for injection molding machines according to claim 1, characterized in that: the equal fixed mounting in four corners of the last wall of lower module (1) has guide arm (4), four guide holes (5) that are used for activity joint guide arm (4) are offered to the position that corresponds four guide arm (4) to the lower wall of going up module (2), it is in the same place with lower module (1) activity joint through four guide holes (5) to go up module (2).

5. The injection mold for the injection molding machine according to claim 2, characterized in that: the upper end of the outer wall surface of the screw rod (15) is fixedly connected with a limiting block (21), and the limiting block (21) is located on the upper side above the linkage plate (16).