CN211030999U

CN211030999U - Injection mold convenient for demolding

Info

Publication number: CN211030999U
Application number: CN201921479960.5U
Authority: CN
Inventors: 杨忠淮
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-07-17
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses an injection mold convenient for demolding, which comprises a supporting seat, wherein one side of the supporting seat is provided with a first hydraulic cylinder, one end of a piston rod of the first hydraulic cylinder is fixedly connected with one side of a movable mold, the other side of the supporting seat is symmetrically provided with thimbles, the movable mold is symmetrically provided with two groups of first chutes, the first chutes are penetrated and sleeved on the movable mold, the first chutes are movably sleeved with slide rods, the slide rods are sleeved with two groups of baffles, the two groups of baffles are elastically connected through springs, the springs are movably sleeved on the slide rods, a second hydraulic cylinder is arranged in the movable mold, one end of the piston rod of the second hydraulic cylinder is fixedly connected with a movable block, the injection mold convenient for demolding is designed with the movable side plate at the side of the mold, the side plate can be removed during demolding treatment, the adhesion area of a workpiece to the mold is reduced, and the workpieces adhered to the die cavity are separated without damage by the cooperation of the slide rod and the air pump.

Description

Injection mold convenient for demolding

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold of convenient drawing of patterns.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

Because the plastic is melted at high temperature before molding, the interior of the mold is vacuumized, the workpiece is adhered to the movable mold, and when the workpiece is subjected to demolding treatment, the workpiece is easily damaged, so that the deformation of the workpiece cannot reach the production standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold of convenient drawing of patterns, with the curb plate movable design of mould side, when the drawing of patterns is handled, can demolish the curb plate, reduce the adhesion area of work piece to the mould to utilize slide bar and air pump cooperation, carry out harmless separation to the work piece of adhesion on the die cavity, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold convenient for demolding comprises a supporting seat, wherein a first hydraulic cylinder is arranged on one side of the supporting seat, one end of a piston rod of the first hydraulic cylinder is fixedly connected with one side of a movable mold, ejector pins are symmetrically arranged on the other side of the supporting seat, two groups of first sliding chutes are symmetrically arranged on the movable mold, the first sliding chutes penetrate and are sleeved on the movable mold, sliding rods are movably sleeved in the first sliding chutes, two groups of baffles are sleeved on the sliding rods, the two groups of baffles are elastically connected through springs, the springs are movably sleeved on the sliding rods, a second hydraulic cylinder is arranged in the movable mold, one end of a piston rod of the second hydraulic cylinder is fixedly connected with a movable block, an air pump is arranged at one end of the movable mold, an air outlet of the air pump is communicated with one side of a second cavity through an air pipe, and a fixed mold is arranged, the injection molding machine is characterized in that an injection molding opening is formed in the fixed mold, supports are symmetrically arranged on two sides of the fixed mold, a third hydraulic cylinder is arranged on each support, and a side plate is fixedly connected to one end of a piston rod of each third hydraulic cylinder.

Preferably, a piston rod of the first hydraulic cylinder penetrates through and is sleeved on the supporting seat, two groups of guide rods are symmetrically arranged on one side of the moving mold, and the guide rods penetrate through and are sleeved on the supporting seat.

Preferably, the two groups of ejector pins and the two groups of first sliding grooves are respectively aligned on the same straight line, and the section diameters of the two groups of ejector pins are the same as the section diameter of the sliding rod.

Preferably, a first cavity is formed in the movable die, the two groups of baffles are arranged in the first cavity, one group of baffles is fixedly sleeved with the sliding rod, and the other group of baffles is slidably sleeved with the sliding rod.

Preferably, a second cavity is formed in the other side of the movable mold, and the movable block is movably clamped in the second cavity.

Preferably, the two groups of side plates are symmetrically and movably clamped at two sides between the fixed die and the movable die.

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

1. when the utility model is used for demoulding a formed workpiece, the side plate on the side of the mould can be detached through the third hydraulic cylinder, so that the adhesion area of the workpiece and the mould is reduced, the workpiece can not be damaged, and the structure is simple and practical;

2. in the demolding process, the movable mold moves, the ejector pin pushes the sliding rod, the sliding rod generates thrust on a workpiece adhered to the cavity, and in the pushing process of the sliding rod, the second hydraulic cylinder controls the movable block to move backwards, so that cold air output by the air pump can enter the cavity through the second cavity, and the workpiece and the movable mold can be conveniently separated;

3. the utility model discloses a movable block is the partly of moving die mould cavity, and not only when injection moulding, the effect of type is moulded in the performance, and when the drawing of patterns, the movable block moves backward moreover, makes trachea and second cavity intercommunication to the realization is aerifyd to the die cavity, accelerates the harmless drawing of patterns to the work piece, has improved work efficiency, has guaranteed the production quality of work piece.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partial sectional view of the moving mold of the present invention;

fig. 3 is an enlarged schematic view of the position a of the present invention.

In the figure: the injection molding machine comprises a supporting seat 1, a movable mold 2, a fixed mold 3, a first hydraulic cylinder 4, an ejector pin 5, a guide rod 6, a first sliding chute 7, a sliding rod 8, a first cavity 9, a baffle 10, a spring 11, a second hydraulic cylinder 12, a movable block 13, a second cavity 14, an air pump 15, an air pipe 16, a bracket 17, a third hydraulic cylinder 18, a side plate 19 and an injection molding opening 20.

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, the present invention provides a technical solution: an injection mold convenient for demolding comprises a supporting seat 1, wherein a first hydraulic cylinder 4 is arranged on one side of the supporting seat 1, one end of a piston rod of the first hydraulic cylinder 4 is fixedly connected with one side of a movable mold 2, and the first hydraulic cylinder 4 controls the movable mold 2 to be separated from a fixed mold 3; ejector pins 5 are symmetrically arranged on the other side of the supporting seat 1, two groups of first sliding chutes 7 are symmetrically arranged on the movable mold 2, the first sliding chutes 7 penetrate and are sleeved on the movable mold 2, sliding rods 8 are movably sleeved in the first sliding chutes 7, the movable mold 2 moves backwards, the ejector pins 5 push the sliding rods 8 to move outwards, and thrust is generated on a workpiece adhered on the movable mold 2; two groups of baffles 10 are sleeved on the sliding rod 8, the two groups of baffles 10 are elastically connected through a spring 11, the spring 11 is movably sleeved on the sliding rod 8, and the spring 11 controls the sliding rod 8 to reset; a second hydraulic cylinder 12 is arranged in the movable mold 2, one end of a piston rod of the second hydraulic cylinder 12 is fixedly connected with a movable block 13, one end of the movable mold 2 is provided with an air pump 15, an air outlet of the air pump 15 is communicated with one side of a second cavity 14 through an air pipe 16, the movable block 13 is completely aligned with one side of a cavity of the movable mold 2 in the injection molding process, the movable block is matched with the mold to complete the molding treatment of a workpiece, the second hydraulic cylinder 12 controls the movable block 13 to move backwards during the demolding treatment of the workpiece, so that the air pipe 16 is communicated with the second cavity 14, and the air pump 15 inflates air into the movable mold 2 through the second cavity 14, so that the workpiece is separated from the movable mold 2 without damage; one side of moving die utensil 2 is provided with fixed die utensil 3, be provided with on the fixed die utensil 3 and mould plastics mouth 20, mould plastics mouth 20 the bilateral symmetry of fixed die utensil 3 is provided with support 17, be provided with third pneumatic cylinder 18 on the support 17, the piston rod one end fixedly connected with curb plate 19 of third pneumatic cylinder 18, during the drawing of patterns, third pneumatic cylinder 18 control curb plate 19 and mould separation reduce the adhesion area of work piece and mould.

Specifically, the piston rod activity of first pneumatic cylinder 4 is run through and is cup jointed on supporting seat 1, one side symmetry of moving mould 2 is provided with two sets of guide arms 6, the activity of guide arm 6 runs through and cup joints on supporting seat 1, and guide arm 6 plays spacing effect to moving mould 2.

Specifically, two sets of thimble 5 and two sets of first spout 7 align respectively and set up on collinear, and the cross-sectional diameter of two sets of thimbles 5 is the same with the cross-sectional diameter of slide bar 8, and thimble 5 top moves slide bar 8, and slide bar 8 produces the motive force to the work piece to make work piece and moving die 2 separate.

Specifically, a first cavity 9 is formed in the moving die 2, two groups of baffles 10 are arranged in the first cavity 9, one group of baffles 10 is fixedly sleeved with the sliding rod 8, the other group of baffles 10 is slidably sleeved with the sliding rod 8, the sliding rod 8 moves to enable the baffles 10 to extrude the spring 11, and after the workpieces are separated, the spring 11 controls the sliding rod 8 to reset.

Specifically, the other side of the movable mold 2 is provided with a second cavity 14, the movable block 13 is movably clamped in the second cavity 14, the second cavity 14 is communicated with the air pipe 16, and the movable block 13 blocks the second cavity 14 in the injection molding process.

Specifically, two sets of curb plate 19 symmetry activity joint both sides curb plate 19 cooperation movable mould 2 and fixed mould 3 between fixed mould 3 and movable mould 2 accomplish the design processing of moulding plastics to the work piece, and during the drawing of patterns, curb plate 19 separates with the work piece under third pneumatic cylinder 18 control, reduces the adhesion area of work piece and mould.

The working principle is as follows: when the injection molding machine is used, the first hydraulic cylinder 4 controls the movable mold 2 and the fixed mold 3 to be closed, the injection molding machine injects melted plastics into the mold through the injection port 20, and a workpiece in the mold is shaped and cooled; after a workpiece is cooled, the third hydraulic cylinder 18 controls the side plate 19 to separate, the side plate 19 is separated and cannot damage the workpiece, the first hydraulic cylinder 4 controls the movable die 2 to move backwards and is separated from the fixed die 3, when the movable die 2 moves backwards, the ejector pin 5 on one side of the supporting seat 1 pushes the slide rod 8 in the movable die 2, the slide rod 8 slides and generates thrust on the workpiece adhered to the movable die 2, when the slide rod 8 pushes the workpiece, the second hydraulic cylinder 12 controls the movable block 13 to move backwards to enable the air pipe 16 to be communicated with the second cavity 14, the air pump 15 operates and charges air into the cavity of the movable die 2 through the second cavity 14, and the nondestructive separation of the workpiece and the movable die 2 is accelerated; after the workpiece is separated, the sliding rod 8 is reset under the control of the spring 11.

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 of convenient drawing of patterns, includes supporting seat (1), its characterized in that: one side of the supporting seat (1) is provided with a first hydraulic cylinder (4), one end of a piston rod of the first hydraulic cylinder (4) is fixedly connected with one side of a movable mould (2), the other side of the supporting seat (1) is symmetrically provided with ejector pins (5), the movable mould (2) is symmetrically provided with two groups of first sliding grooves (7), the first sliding grooves (7) are penetrated and sleeved on the movable mould (2), the sliding rods (8) are movably sleeved in the first sliding grooves (7), the sliding rods (8) are sleeved with two groups of baffles (10), the two groups of baffles (10) are elastically connected through springs (11), the springs (11) are movably sleeved on the sliding rods (8), the movable mould (2) is internally provided with a second hydraulic cylinder (12), one end of the piston rod of the second hydraulic cylinder (12) is fixedly connected with a movable block (13), one end of the movable mould (2) is provided with an air pump (15), the air pump is characterized in that an air outlet of the air pump (15) is communicated with one side of the second cavity (14) through an air pipe (16), one side of the movable mold (2) is provided with a fixed mold (3), an injection molding port (20) is formed in the fixed mold (3), supports (17) are symmetrically arranged on two sides of the fixed mold (3), third hydraulic cylinders (18) are arranged on the supports (17), and one ends of piston rods of the third hydraulic cylinders (18) are fixedly connected with side plates (19).

2. The injection mold facilitating demolding as claimed in claim 1, wherein: the piston rod of the first hydraulic cylinder (4) penetrates through and is sleeved on the supporting seat (1), two groups of guide rods (6) are symmetrically arranged on one side of the moving mold (2), and the guide rods (6) penetrate through and are sleeved on the supporting seat (1).

3. The injection mold facilitating demolding as claimed in claim 1, wherein: the two groups of thimbles (5) and the two groups of first sliding grooves (7) are respectively arranged on the same straight line in an aligning manner, and the section diameters of the two groups of thimbles (5) are the same as the section diameter of the sliding rod (8).

4. The injection mold facilitating demolding as claimed in claim 1, wherein: the movable mould (2) is provided with a first cavity (9), the two groups of baffles (10) are arranged in the first cavity (9), one group of baffles (10) is fixedly sleeved with the sliding rod (8), and the other group of baffles (10) is slidably sleeved with the sliding rod (8).

5. The injection mold facilitating demolding as claimed in claim 1, wherein: the other side of the movable mould (2) is provided with a second cavity (14), and the movable block (13) is movably clamped in the second cavity (14).

6. The injection mold facilitating demolding as claimed in claim 1, wherein: the two groups of side plates (19) are symmetrically and movably clamped at two sides between the fixed die (3) and the movable die (2).