Demolding device for injection molding of automobile parts

Abstract

The utility model relates to the technical field of injection product production devices, in particular to a demolding device for injection molding of automobile parts, which comprises an injection mold, an insertion rod and a movable component, the movable component comprises a movable plate and an electric push rod, a partition plate is arranged at the bottom of the injection mold, and a certain distance is reserved between the partition plate and the injection mold. A mounting bottom plate is arranged at the bottom of the partition plate, a certain distance is reserved between the partition plate and the mounting bottom plate, an insertion rod is arranged in the space between the partition plate and the injection mold, the injection mold is provided with a demolding hole, the insertion rod is in sliding sealing connection with the demolding hole, and a movable plate is arranged in the space between the partition plate and the mounting bottom plate. A mounting side plate is arranged on the outer side of the injection mold and is in sealing connection with the injection mold, the partition plate and the mounting bottom plate, and the movable plate is in sliding sealing connection with the inner wall of the mounting side plate; according to the utility model, an air-blowing mode is used for demoulding, so that the hard push rod can be prevented from damaging an injection molding product, and the quality of the product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection product production device technical field especially relates to automobile parts injection uses demoulding device. BACKGROUND

[0002] Automobile parts injection demoulding refers to the process that automobile parts after forming are taken out from injection mould in the injection moulding process. Demoulding is the last link of injection moulding, and the quality of demoulding directly influences the quality and production efficiency of automobile parts.

[0003] The existing demoulding process mostly uses ejector rod to eject injection product directly, when the adhesion force of injection product and mould is big or the center of injection product is fragile and easy to deform, the hard contact of ejector rod and injection product can cause damage to injection product or make injection product deform, thereby making product become waste product.

[0004] Therefore, aiming at the above problems, a demoulding device for automobile parts injection can be designed to improve the demoulding device, adopt air blowing mode to demould, and avoid damage of injection product caused by hard contact. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that most demoulding processes mostly use ejector rod to eject injection product directly, when the adhesion force of injection product and mould is big or the center of injection product is fragile and easy to deform, the way can cause damage to injection product or make injection product deform.

[0006] The technical scheme of the utility model is: a demoulding device for automobile parts injection, comprising injection mould, insertion rod and movable assembly, the movable assembly comprises movable plate and electric push rod, the bottom of the injection mould is provided with partition plate, the partition plate and the injection mould are spaced apart by a certain distance, the bottom of the partition plate is provided with mounting bottom plate, the partition plate and the mounting bottom plate are spaced apart by a certain distance, the insertion rod is arranged in the space between the partition plate and the injection mould, the injection mould is provided with demoulding hole, the insertion rod is slidably connected with the demoulding hole, the space between the partition plate and the mounting bottom plate is provided with movable plate, the outside of the injection mould is provided with mounting side plate, the mounting side plate is sealingly connected with the injection mould, the partition plate and the mounting bottom plate, and the movable plate is slidably and sealingly connected with the inner wall of the mounting side plate.

[0007] Preferably, the upper part of the injection mould is provided with injection groove, the demoulding hole is located in the injection groove, and the demoulding hole is provided with multiple groups.

[0008] Preferably, the bottom end of the insertion rod is provided with driven plate, the bottom of the driven plate is provided with guide rod, and the guide rod is slidably connected with the partition plate and the movable plate.

[0009] As preferred, the outer side of the guide rod is provided with a first force block and a second force block, the second force block is located at the bottom end of the guide rod, and the first force block is located at the space between the partition plate and the movable plate.

[0010] As preferred, the partition plate is provided with a flow-through air hole, a group of installation side plates are provided with a flow-through air pipe, and the flow-through air hole and the flow-through air pipe are both provided with a one-way valve mechanism.

[0011] As preferred, the installation bottom plate is provided with a balance hole, and the balance hole penetrates the installation bottom plate.

[0012] As preferred, the one-way valve mechanism comprises a mounting seat, a ball and a spring, the inner side of the mounting seat is provided with the ball, and the spring is arranged between the ball and the mounting seat.

[0013] As preferred, the ball at the flow-through air hole is pushed downward by the spring, and the ball at the flow-through air pipe is pushed away from the end of the flow-through air pipe far from the installation side plate by the spring.

[0014] The beneficial effects of the utility model are as follows:

[0015] By setting the electric push rod to drive the movable plate, when demolding, the electric push rod drives the movable plate to move downward and drives the insertion rod to separate from the demolding hole, then the electric push rod drives the movable plate to move upward, the sliding sealing connection between the movable plate and the installation side plate is utilized to press air into the space between the partition plate and the injection mold, and the injection product is separated from the injection mold by blowing out from the demolding hole, so that pneumatic demolding is realized, the gas is relatively soft compared with the push rod, the damage to the injection product can be reduced, and meanwhile, a plurality of demolding holes can shunt the blown gas, further reducing the damage of the gas to the injection product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a demolding device for injection molding of automobile accessories, which comprises a base plate, a partition plate, a guide rod, a movable plate, an installation bottom plate, a plurality of installation side plates, a plurality of insertion rods, a plurality of demolding holes, a plurality of electric push rods and a plurality of balance holes.

[0017] Figure 2 The utility model discloses a demolding device for injection molding of automobile accessories, which comprises a base plate, a partition plate, a guide rod, a movable plate, an installation bottom plate, a plurality of installation side plates, a plurality of insertion rods, a plurality of demolding holes, a plurality of electric push rods and a plurality of balance holes.

[0018] Figure 3 The utility model discloses a demolding device for injection molding of automobile accessories, which comprises a base plate, a partition plate, a guide rod, a movable plate, an installation bottom plate, a plurality of installation side plates, a plurality of insertion rods, a plurality of demolding holes, a plurality of electric push rods and a plurality of balance holes.

[0019] Figure 4 The utility model discloses a demolding device for injection molding of automobile accessories, which comprises a base plate, a partition plate, a guide rod, a movable plate, an installation bottom plate, a plurality of installation side plates, a plurality of insertion rods, a plurality of demolding holes, a plurality of electric push rods and a plurality of balance holes.

[0020] Figure 5 The utility model discloses a demolding device for injection molding of automobile accessories, which comprises a base plate, a partition plate, a guide rod, a movable plate, an installation bottom plate, a plurality of installation side plates, a plurality of insertion rods, a plurality of demolding holes, a plurality of electric push rods and a plurality of balance holes.

[0021] Explanation of reference signs: 1, injection mold; 2, partition plate; 3, mounting bottom plate; 4, electric push rod; 5, movable plate; 6, flow-through air hole; 7, insertion rod; 8, demolding hole; 9, flow-through air pipe; 101, injection slot; 102, mounting side plate; 201, mounting seat; 202, ball; 203, spring; 301, balance hole; 701, driven plate; 702, guide rod; 703, first force block; 704, second force block. DETAILED DESCRIPTION

[0022] The utility model is further explained below in combination with the drawings and examples.

[0023] Please refer to Figures 1-5 The utility model provides a kind of embodiment: automobile accessory injection molding demolding device, including injection mold 1, insertion rod 7 and movable assembly, movable assembly includes movable plate 5 and electric push rod 4, the bottom of injection mold 1 is provided with partition plate 2, partition plate 2 and injection mold 1 are spaced apart at a distance, the bottom of partition plate 2 is provided with mounting bottom plate 3, partition plate 2 and mounting bottom plate 3 are spaced apart at a distance, insertion rod 7 is arranged in the space between partition plate 2 and injection mold 1, injection mold 1 is provided with demolding hole 8, insertion rod 7 and demolding hole 8 sliding seal connection are connected, the space between partition plate 2 and mounting bottom plate 3 is provided with movable plate 5, the outside of injection mold 1 is provided with mounting side plate 102, mounting side plate 102 and injection mold 1, partition plate 2 and mounting bottom plate 3 seal connection, movable plate 5 and the inner wall of mounting side plate 102 sliding seal connection are connected;By setting electric push rod 4 drives movable plate 5 to move, in demolding, electric push rod 4 drives movable plate 5 to move downward and drives insertion rod 7 and demolding hole 8 to separate, after electric push rod 4 promotes movable plate 5 to move upward, using the sliding seal connection of movable plate 5 and mounting side plate 102 air pressure is pressed into the space between partition plate 2 and injection mold 1, and from demolding hole 8 blow out and separate injection product and injection mold 1, to realize pneumatic demolding, gas is more soft compared to push rod and can reduce the damage to injection product, and multiple demolding holes 8 can shunt the gas that is ejected, further reduce the damage of gas to injection product.

[0024] Please refer to Figure 1 In the embodiment, the upper portion of injection mold 1 is provided with injection slot 101, demolding hole 8 is located in injection slot 101, and demolding hole 8 is provided with multiple groups;Injection slot 101 is used for injection molding, and multiple demolding holes 8 can shunt the gas that is ejected, further reducing the damage of gas to injection product.

[0025] Please refer to Figures 2-4In the embodiment, the outer side of the guide rod 702 is provided with a first force block 703 and a second force block 704, the second force block 704 is located at the bottom end of the guide rod 702, the first force block 703 is located at the space between the partition plate 2 and the movable plate 5, the partition plate 2 is provided with a flow-through air hole 6, a group of installation side plates 102 are provided with a flow-through air pipe 9, the flow-through air hole 6 and the flow-through air pipe 9 are both provided with a one-way valve mechanism, and the installation bottom plate 3 is provided with a balance hole 301; when the movable plate 5 moves downward, it contacts the second force block 704 and drives the guide rod 702 to move downward, drives the driven plate 701 and the insertion rod 7 to move downward to separate the insertion rod 7 from the demolding hole 8, and sucks external air from the flow-through air pipe 9 into the space between the movable plate 5 and the partition plate 2, then the electric push rod 4 pushes the movable plate 5 to move upward, before the movable plate 5 contacts the first force block 703, the movable plate 5 pushes the air between the movable plate 5 and the partition plate 2 from the flow-through air hole 6 into the space between the partition plate 2 and the injection mold 1, uses air pressure to make the air leave the device from the demolding hole 8 to blow off the injection product for demolding, then the movable plate 5 continues to move upward and contacts the first force block 703 and pushes the guide rod 702 upward, drives the driven plate 701 and the insertion rod 7 to move upward, so that the insertion rod 7 reinserts the demolding hole 8 for the next injection.

[0026] Please refer to Figure 5 In the embodiment, the one-way valve mechanism comprises a mounting seat 201, a ball 202 and a spring 203, the inner side of the mounting seat 201 is provided with the ball 202, and the ball 202 and the mounting seat 201 are provided with the spring 203; the mounting seat 201, the ball 202 and the spring 203 constitute the one-way valve mechanism, so that air can only enter from the side away from the spring 203.

[0027] When demolding, the electric push rod 4 drives the movable plate 5 to move downward, contacts the second force block 704 and drives the guide rod 702 to move downward, drives the driven plate 701 and the insertion rod 7 to move downward to separate the insertion rod 7 from the demolding hole 8, and sucks external air from the flow-through air pipe 9 into the space between the movable plate 5 and the partition plate 2, then the electric push rod 4 pushes the movable plate 5 to move upward, before the movable plate 5 contacts the first force block 703, the movable plate 5 pushes the air between the movable plate 5 and the partition plate 2 from the flow-through air hole 6 into the space between the partition plate 2 and the injection mold 1, uses air pressure to make the air leave the device from the demolding hole 8 to blow off the injection product for demolding, then the movable plate 5 continues to move upward and contacts the first force block 703 and pushes the guide rod 702 upward, drives the driven plate 701 and the insertion rod 7 to move upward, so that the insertion rod 7 reinserts the demolding hole 8 for the next injection.

[0028] The embodiment of the utility model is explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A demolding device for injection molding of automobile parts, comprising an injection mold (1); characterized in that: The utility model also comprises an insertion rod (7) and a movable assembly, the movable assembly comprises a movable plate (5) and an electric push rod (4), the bottom of the injection mold (1) is provided with a partition plate (2), the partition plate (2) is spaced apart from the injection mold (1) by a certain distance, the bottom of the partition plate (2) is provided with a mounting bottom plate (3), the partition plate (2) and the mounting bottom plate (3) are spaced apart by a certain distance, the space between the partition plate (2) and the injection mold (1) is provided with the insertion rod (7), the injection mold (1) is provided with a demolding hole (8), the insertion rod (7) and the demolding hole (8) are in sliding connection, the space between the partition plate (2) and the mounting bottom plate (3) is provided with the movable plate (5), the outside of the injection mold (1) is provided with a mounting side plate (102), the mounting side plate (102) is in sealing connection with the injection mold (1), the partition plate (2) and the mounting bottom plate (3), the movable plate (5) and the inner wall of the mounting side plate (102) are in sliding sealing connection.

2. The demolding device for injection molding of automobile parts according to claim 1, characterized in that: The upper portion of the injection mold (1) is provided with an injection slot (101), and the demolding hole (8) is located in the injection slot (101); the demolding hole (8) is provided with a plurality of groups.

3. The demolding device for injection molding of automobile parts according to claim 1, characterized in that: The bottom end of the insertion rod (7) is provided with a driven plate (701), the bottom of the driven plate (701) is provided with a guide rod (702), and the guide rod (702) is in sliding connection with the partition plate (2) and the movable plate (5).

4. The demolding device for injection molding of automobile parts according to claim 3, characterized in that: The outer side of the guide rod (702) is provided with a first stress block (703) and a second stress block (704), the second stress block (704) is located at the bottom end of the guide rod (702), and the first stress block (703) is located at the space between the partition plate (2) and the movable plate (5).

5. The demolding device for injection molding of automobile parts according to claim 1, characterized in that: The partition plate (2) is provided with a through air hole (6), and one group of mounting side plates (102) are provided with a through air pipe (9); the through air hole (6) and the through air pipe (9) are provided with a one-way valve mechanism.

6. The demolding device for injection molding of automobile parts according to claim 1, characterized in that: The mounting bottom plate (3) is provided with a balance hole (301) penetrating through the mounting bottom plate (3).

7. The demolding device for injection molding of automobile parts according to claim 5, characterized in that: The one-way valve mechanism comprises a mounting seat (201), a ball (202) and a spring (203), the inner side of the mounting seat (201) is provided with the ball (202), and the ball (202) and the mounting seat (201) are provided with the spring (203).

8. The demolding device for injection molding of automobile parts according to claim 5, characterized in that: The ball (202) at the through air hole (6) is pushed downward by the spring (203), and the ball (202) at the through air pipe (9) is pushed away from the mounting side plate (102) by the spring (203).

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