CN217777702U

CN217777702U - Internal and external separation type plastic injection mold

Info

Publication number: CN217777702U
Application number: CN202221580172.7U
Authority: CN
Inventors: 刘汉强; 刘桂林; 刘建发
Original assignee: Shenzhen Weifa Technology Co ltd
Current assignee: Shenzhen Weifa Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-11
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses an internal and external separation type plastic injection mold, which comprises an upper mold and a lower mold, wherein the top of the upper mold is provided with a sprue, a containing cavity is arranged on the lower mold, a mold core is arranged in the containing cavity, a mold cavity is arranged on the mold core, a ring groove is arranged on the side surface of the mold core, a cooling pipe is sleeved on the ring groove, and both sides of the mold core are provided with limiting components convenient to operate; the utility model discloses a set up to the split formula between mold core and the lower mould, stopper and supporting spring in the traction seat form elasticity limit structure, and the cooperation between the spacing groove, it is spacing to the cooling tube, the mold core holds to holding the intracavity simultaneously, the auto-lock of mold core on the lower mould is realized in cooperation between reset spring and the locating piece, make things convenient for the dismantlement of mold core to change in addition, avoid the local damage of mold core to lead to the holistic scrap of mould, the dismantlement of cooling tube is changed among the heat abstractor of being convenient for, guarantee the radiating effect of cooling tube among the heat abstractor, reduce simultaneously and change holistic injection mold cost.

Description

Internal and external separation type plastic injection mold

Technical Field

The utility model relates to a plastic injection mold's technical field specifically is an inside and outside disconnect-type plastic injection mould.

Background

An injection mold is a tool for producing plastic products; the injection molding is a processing method used for batch production of parts with complex shapes, and particularly relates to a method for injecting heated and molten plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.

Most are integrated into one piece structure between the injection mold main part that has used and the mold core, the mold core suffers the position of damage easily under long-term punching press effect simultaneously, in case the mold core local damage, lead to holistic scrapping of mould, the cooling tube that generally adopts in the heat abstractor simultaneously installs around the mold core, make the cooling tube in the heat abstractor be difficult to dismantle the change, the radiating effect that leads to the heat abstractor of long-term use reduces, thereby it is higher to change holistic injection mold's cost, increase the manufacturing cost of mould.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inside and outside disconnect-type plastic injection mould to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an inside and outside disconnect-type plastic injection mould, includes mould and lower mould, the top of going up the mould is provided with the runner, has seted up on the lower mould and has held the chamber, holds the intracavity and is provided with the mold core, is provided with the die cavity on the mold core, and the ring channel has been seted up to the side of mold core, has cup jointed the cooling tube on the ring channel, and the both sides of mold core all are provided with the spacing subassembly of the operation of being convenient for, and the both sides of lower mould all are provided with the locating component of the regulation of being convenient for.

Preferably, the bottom of the lower die is provided with a jacking cylinder, and the cooling pipe is formed by butting two hoses.

Preferably, the limiting assembly comprises a hinged seat, the hinged seat is installed at the upper edge of the annular groove and consists of two supporting blocks and a fixed shaft, and the die core is located at the bottom end of the annular groove and provided with a limiting groove.

Preferably, it has cup jointed the traction seat to rotate on the articulated seat, and the spout has been seted up to the side of traction seat, and it has the stopper to slide on the spout to peg graft, and the stopper is "L" type structure, and matches each other between tip and the spacing groove, is provided with supporting spring between stopper and the spout.

Preferably, the positioning assembly comprises a connecting rod, the two sides of the lower die are both provided with accommodating grooves, the opening of each accommodating groove is provided with an installation block, and the installation blocks are fixed on the lower die through screws.

Preferably, the tip of connecting rod is provided with the locating piece, and the locating piece is "T" type structure, and the tip is the arc surface structure, has cup jointed reset spring on the connecting rod, and the parallel and level between the tip bottom of connecting rod and the stopper top, and the tip extends to on the ring channel.

Preferably, one end of the connecting rod is provided with a traction handle, the two sides of the traction handle are hinged with inserting blocks, the installing block is provided with a slot, and the end part of the inserting block is matched with the slot.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up to the split formula between mold core and the lower mould, stopper and supporting spring in the traction base form elasticity limit structure, and cooperate between the spacing groove, carry on spacingly to the cooling tube, the mold core holds to holding the intracavity simultaneously, cooperation between reset spring and the locating piece realizes the auto-lock of mold core on the lower mould, make things convenient for the dismantlement of mold core to change in addition, avoid the local damage of mold core to lead to the holistic scrap of mould, the dismantlement of cooling tube is changed among the heat abstractor of being convenient for, guarantee the radiating effect of cooling tube among the heat abstractor, reduce simultaneously and change holistic injection mold cost.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1;

FIG. 3 is an exploded view between the lower mold and the mold core of the present invention;

fig. 4 is an enlarged schematic structural view of the utility model at the point B in fig. 3;

fig. 5 is a cross-sectional view of the lower mold of the present invention.

In the figure: 1. an upper die; 2. a lower die; 21. a connecting rod; 22. a receiving groove; 23. mounting blocks; 24. positioning a block; 25. a return spring; 26. a pulling handle; 27. inserting a block; 28. a slot; 3. a gate; 4. an accommodating chamber; 5. a mold core; 51. a die cavity; 52. an annular groove; 53. a limiting groove; 6. jacking up the cylinder; 8. a cooling tube; 9. a hinged seat; 91. a pulling seat; 92. a chute; 93. a limiting block; 94. supporting the spring.

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 to 5, the present invention provides a technical solution: an internal and external separation type plastic injection mold comprises an upper mold 1 and a lower mold 2, wherein a sprue 3 is arranged at the top of the upper mold 1, the sprue 3 is arranged to be conveniently connected with a nozzle of an injection molding machine, an accommodating cavity 4 is formed in the lower mold 2, a mold core 5 is placed in the accommodating cavity 4, mold cavities 51 are formed in the mold core 5, and the difference between the mold cores is that the corresponding mold cavities 51 are different;

the bottom of the lower die 2 is fixedly provided with a jacking cylinder 6, the extension movement of the jacking cylinder 6 is convenient for the ejection and replacement of the die core 5, the model of the jacking cylinder 6 can be selected according to the actual working condition, the side surface of the die core 5 is provided with an annular groove 52, the annular groove 52 is sleeved with a cooling pipe 8, the cooling pipe 8 is formed by butting two hoses, and the connection between the cooling pipes 8 is convenient for the sleeving on the die core 5;

the two sides of the mold core 5 are respectively provided with a limiting component convenient to operate, each limiting component comprises a hinge seat 9, each hinge seat 9 is installed at the upper edge of the annular groove 52, each hinge seat 9 consists of two supporting blocks and a fixed shaft, a limiting groove 53 is formed in the bottom end, located at the annular groove 52, of the mold core 5, a traction seat 91 is rotatably sleeved on each hinge seat 9, and a sliding groove 92 is formed in the side surface of each traction seat 91;

a limiting block 93 is inserted on the sliding groove 92 in a sliding manner, the limiting block 93 is in an L-shaped structure, the end part of the limiting block 93 is matched with the limiting groove 53, a supporting spring 94 is fixedly connected between the limiting block 93 and the sliding groove 92, an elastic extrusion structure is formed between the supporting spring 94 and the limiting block 93 and matched with the limiting groove 53 to limit the cooling pipe 8, and the stability of the cooling pipe 8 is ensured;

positioning components convenient to adjust are arranged on two sides of the lower die 2 respectively and comprise connecting rods 21, accommodating grooves 22 are formed in two sides of the lower die 2 respectively, mounting blocks 23 are fixed at openings of the accommodating grooves 22, the mounting blocks 23 are fixed on the lower die 2 through screws, positioning blocks 24 are fixed at the end portions of the connecting rods 21, the positioning blocks 24 are of T-shaped structures, the end portions of the positioning blocks are of arc surface structures, and reset springs 25 are sleeved on the connecting rods 21;

the bottom end of the end part of the connecting rod 21 is flush with the top end of the limiting block 9, the end part extends to the annular groove 52, the die core 5 presses down to extrude the arc surface of the end part of the positioning block 24, so that the end part of the positioning block 24 is accommodated in the accommodating groove 22, and the elastic clamping structure between the return spring 25 and the positioning block 24 limits the die core 5 in the accommodating cavity 4 of the lower die 2;

one end of the connecting rod 21 is provided with a pulling handle 26, the two sides of the pulling handle 26 are both hinged with inserting blocks 27, the mounting block 23 is provided with a slot 28, the end parts of the inserting blocks 27 are matched with the slot 28, the length of the inserting blocks 27 is greater than that of the end parts of the positioning blocks 24, the pulling handle 26 is pulled, and then the inserting blocks 27 are shifted to enable the end parts to be inserted into the corresponding slots 28, so that the end parts of the positioning blocks 24 are accommodated into the accommodating grooves 22, and the ejection of the mold cores 5 is facilitated;

during practical use, the cooling pipe 8 is sleeved in the annular groove 52 of the mold core 5, the traction seat 91 is vertically downward, the limiting block 93 is pushed to enable the end part of the limiting block to be inserted in the limiting groove 53, the limiting block 93 and the supporting spring 94 form elastic extrusion to limit the cooling pipe 8, then the mold core 2 is pressed downwards and placed in the accommodating cavity 4, the mold core 5 is pressed downwards to extrude the arc surface of the end part of the positioning block 24, so that the end part of the positioning block 24 is accommodated in the accommodating groove 22, when the bottom end of the mold core 5 contacts the bottom end of the accommodating cavity 4, the end part of the positioning block 24 is inserted in the annular groove 52 and attached to the top end of the limiting block 9 under the elastic action of the reset spring 25, and self-locking of the mold core 5 on the lower mold 2 is realized; when the mold core 5 needs to be replaced, the pulling handle 26 is pulled, the inserting block 27 is pulled again to enable the end part of the inserting block to be inserted into the corresponding slot 28, the end part of the positioning block 24 is accommodated into the accommodating groove 22, the telescopic end of the jacking cylinder 6 is pushed out, the operation is simple, the whole die is prevented from being scrapped due to the local damage of the mold core, the end part of the die is far away from the limiting groove 53 by upwards pushing the limiting block 93, the cooling pipe 8 can be taken out, the disassembly and replacement of the cooling pipe in the heat dissipation device are facilitated, the heat dissipation effect of the cooling pipe in the heat dissipation device is guaranteed, and meanwhile, the cost for replacing the whole injection mold is reduced.

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 inside and outside disconnect-type plastic injection mould, includes mould (1) and lower mould (2), its characterized in that: the die is characterized in that a pouring gate (3) is arranged at the top of the upper die (1), a containing cavity (4) is formed in the lower die (2), a die core (5) is arranged in the containing cavity (4), a die groove (51) is formed in the die core (5), an annular groove (52) is formed in the side face of the die core (5), a cooling pipe (8) is sleeved on the annular groove (52), limiting components convenient to operate are arranged on the two sides of the die core (5), and positioning components convenient to adjust are arranged on the two sides of the lower die (2).

2. The internal-external separation type plastic injection mold according to claim 1, wherein: the bottom of the lower die (2) is provided with a jacking cylinder (6), and the cooling pipe (8) is formed by butting two hoses.

3. The internal-external separation type plastic injection mold according to claim 1, wherein: spacing subassembly includes articulated seat (9), and the last edge department at ring channel (52) is installed in articulated seat (9), and articulated seat (9) comprise two supporting shoes and fixed axle, and spacing groove (53) have been seted up to the bottom that lies in ring channel (52) on mold core (5).

4. The internal-external separation type plastic injection mold according to claim 3, wherein: articulated seat (9) are gone up to rotate and have been cup jointed and draw seat (91), and spout (92) have been seted up to the side of drawing seat (91), and it has stopper (93) to slide on spout (92) to peg graft, and stopper (93) are "L" type structure, and match each other between tip and spacing groove (53), are provided with supporting spring (94) between stopper (93) and spout (92).

5. The internal-external separation type plastic injection mold according to claim 1, wherein: the positioning assembly comprises a connecting rod (21), the two sides of the lower die (2) are both provided with accommodating grooves (22), mounting blocks (23) are arranged at openings of the accommodating grooves (22), and the mounting blocks (23) are fixed on the lower die (2) through screws.

6. The internal-external separation type plastic injection mold according to claim 5, wherein: the end of connecting rod (21) is provided with locating piece (24), and locating piece (24) are "T" type structure, and the tip is the arc surface structure, has cup jointed reset spring (25) on connecting rod (21), and parallel and level between the tip bottom of connecting rod (21) and stopper (93) top, and the tip extends to on ring channel (52).

7. The internal-external separation type plastic injection mold according to claim 5, wherein: one end of the connecting rod (21) is provided with a traction handle (26), the two sides of the traction handle (26) are hinged with insertion blocks (27), the installation block (23) is provided with a slot (28), and the end parts of the insertion blocks (27) are matched with the slot (28).