Blowing mold capable of preventing mold sticking

Abstract

The utility model discloses an anti-sticking blow mold which comprises a front mold assembly and a rear mold assembly which are symmetrically arranged, mold grooves are formed in the front mold assembly and the rear mold assembly, and a cavity is formed after the mold grooves are encircled; sliding grooves are formed in the bottom of the front mold assembly and the bottom of the rear mold assembly correspondingly, and elastic ejector blocks are connected into the sliding grooves. The ejector block protrudes out of the die groove, or when the front die assembly makes contact with the rear die assembly, the ejector block retracts into the sliding groove; the sliding grooves are formed in the front mold lower plates and the rear mold lower plates, each front mold lower plate and each rear mold lower plate are symmetrically provided with two sliding grooves, and the sliding grooves penetrate through the front mold lower plates and the rear mold lower plates. Compared with the prior art, the ejection mechanism has the advantages that the ejection trouble of the blowing mold can be avoided by adding the ejection structure, the product ejection is realized while the mold is opened, and the mold sticking problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a blow molding mold with an anti-sticking mold. Background Art

[0002] Shock absorbers are generally composed of telescopic rods and shock absorber rods. One end of the telescopic rod moves inside the shock absorber rod, and the other end is connected to the vehicle body. Since the telescopic rod is in contact with the outside world during the extension and retraction process, it is inevitable that dust and other impurities from the outside world will be brought into the shock absorber rod. Since the end of the telescopic rod inside the shock absorber rod is equipped with a sealing device, dust and other impurities will accelerate the wear of the sealing ring and cause damage to the shock absorber. Therefore, a seal is generally placed on the surface of the telescopic rod. Figure 1 The dust cover shown can isolate most of the dust from the telescopic rod.

[0003] The dust cover is made through the blow molding process. During the blow molding mold production process, due to its long length, the bottom of the dust cover far away from the blow needle is prone to sticking to the mold, and it is uncertain whether it sticks to the front mold or the rear mold. If it is not removed in time, the mold may be easily damaged and automated production cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to provide a blow molding mold with an anti-sticking mold. By adding a spring-top structure, the blow molding mold does not have the problem of ejection. The product can be ejected at the same time as the mold is opened, avoiding the problem of sticking mold, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A blow molding mold for an anti-sticking mold includes a symmetrically arranged front mold assembly and a rear mold assembly. The front mold assembly and the rear mold assembly are both provided with mold grooves, which form a mold cavity when the mold grooves are closed. The bottoms of the front mold assembly and the rear mold assembly are both provided with slide grooves, and an elastic top block is connected to the slide groove. The top block protrudes from the mold groove, or retracts into the slide groove when the front mold assembly contacts the rear mold assembly.

[0007] A further improvement of the present invention is that the front mold assembly includes a front support plate, the inner side of which is connected to the front mold upper plate, the front mold core and the front mold lower plate in sequence, and seals are provided between the upper and lower ends of the front mold core and the front mold upper plate and the front mold lower plate.

[0008] A further improvement of the present invention is that the rear mold assembly includes a rear support plate, the inner side of which is connected to the rear mold upper plate, the rear mold core and the rear mold lower plate in sequence, and seals are provided between the upper and lower ends of the rear mold core and the rear mold upper plate and the rear mold lower plate.

[0009] A further improvement of the present invention is that the slide grooves are arranged on the front mold lower plate and the rear mold lower plate, and two slide grooves are symmetrically arranged on each of the front mold lower plate and the rear mold lower plate, and the slide grooves pass through the front mold lower plate and the rear mold lower plate.

[0010] A further improvement of the present invention is that a recess is provided at the tail of the top block, a spring is accommodated in the recess, and the other end of the spring abuts against the front support plate and the rear support plate.

[0011] A further improvement of the present invention is that a limiting groove is provided at the outer opening of the slide groove, the tail of the top block is connected to the limiting block, and the limiting block is slidably fitted in the limiting groove.

[0012] A further improvement of the present invention is that the mold grooves on the front mold core and the rear mold core are corrugated.

[0013] A further improvement of the present invention is that two clamping blocks are symmetrically connected to the upper inner sides of the front support plate and the rear support plate.

[0014] A further improvement of the present invention is that a flange is provided on the outer circumferential surface of the clamping block.

[0015] Beneficial effects of the utility model:

[0016] The blow molding mold of the utility model has an anti-sticking mold, and the elastic top structure is added to achieve the problem of ejection of the blow molding mold. The product can be ejected at the same time as the mold is opened, thus avoiding the problem of sticking.

[0017] The blow molding mold of the utility model has an anti-sticking mold, and the front support plate and the upper inner side of the rear support plate are connected with two clamping blocks. During the production process, the two clamping blocks clamp the product blowing needle and pull it back, and the product remains on the clamp. When the mold is opened, the product automatically falls off, realizing an automatic part removal production process and shortening the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the dust cover structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the front mold assembly of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the rear mold assembly of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the front mold lower plate of the utility model.

[0023] Figure 6 It is a structural schematic diagram of the front mold lower plate of the utility model.

[0024] Figure 7 This is a schematic diagram of the top block structure of the present utility model.

[0025] In the figure: 1-front mold assembly, 101-front support plate, 102-front mold upper plate, 103-front mold core, 104-front mold lower plate, 2-rear mold assembly, 201-rear support plate, 202-rear mold upper plate, 203-rear mold core, 204-rear mold lower plate, 3-mold groove, 4-slide groove, 401-limiting groove, 5-top block, 501-limiting block, 502-embedded groove, 6-clamping block, 7-dust cover. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: Figures 1 to 7 As shown, a blow molding mold for an anti-sticking mold includes a symmetrically arranged front mold component 1 and a rear mold component 2, both of which are provided with mold grooves 3, which form a cavity when surrounded by the mold grooves 3; the bottoms of the front mold component 1 and the rear mold component 2 are both provided with slide grooves 4, and the slide grooves 4 are connected with elastic top blocks 5; the top blocks 5 protrude from the mold grooves 3, or when the front mold component 1 and the rear mold component 2 are in contact, the top blocks 5 retract into the slide grooves 4.

[0028] The front mold assembly 1 includes a front support plate 101, and the inner side of the front support plate 101 is connected to the front mold upper plate 102, the front mold core 103 and the front mold lower plate 104 in sequence. Seals are provided between the upper and lower ends of the front mold core 103 and the front mold upper plate 102 and the front mold lower plate 104.

[0029] The rear mold assembly 2 includes a rear support plate 201, and the inner side of the rear support plate 201 is connected to the rear mold upper plate 202, the rear mold core 203 and the rear mold lower plate 204 in sequence. Seals are provided between the upper and lower ends of the rear mold core 203 and the rear mold upper plate 202 and the rear mold lower plate 204.

[0030] The slide grooves 4 are arranged on the front mold lower plate 104 and the rear mold lower plate 204 . Two slide grooves 4 are symmetrically arranged on each front mold lower plate 104 and the rear mold lower plate 204 , and the slide grooves 4 pass through the front mold lower plate 104 and the rear mold lower plate 204 .

[0031] The rear portion of the top block 5 is provided with an embedding groove 502 , in which a spring is accommodated. The other end of the spring abuts against the front support plate 101 and the rear support plate 201 .

[0032] A limiting groove 401 is provided at the outer opening of the slide groove 4 , and the tail of the top block 5 is connected to the limiting block 501 , and the limiting block 501 is slidably fitted in the limiting groove 401 .

[0033] The mold grooves 3 on the front mold core 103 and the rear mold core 203 are corrugated.

[0034] In this embodiment, the mold grooves 3 on the front mold assembly 1 and the rear mold assembly 2 are arranged in two groups in parallel.

[0035] Example 2: This example is a further improvement of Example 1. The main improvement is that, when used in Example 1, manual picking is required during production, which wastes manpower and increases the production cycle, and cannot achieve fully automatic production. In this example, the above defects can be avoided. Specifically:

[0036] Two clamping blocks 6 are symmetrically connected to the upper inner sides of the front support plate 101 and the rear support plate 201. Each clamping block 6 has the same number of clamping grooves as the mold grooves 3, and a flange is provided on the outer circumference of each clamping block 6. In this embodiment, the two clamping blocks 6 are connected to the upper inner sides of the front support plate 101 and the rear support plate 201. During the production process, the two clamping blocks 6 clamp the product blow needle and withdraw it, leaving the product in the fixture. When the mold is opened, the product automatically falls off, realizing an automatic part removal process and shortening the production cycle.

[0037] Apart from this, this embodiment is exactly the same as Embodiment 1 and will not be described in detail here.

[0038] The specific working principle of this utility model is as follows:

[0039] During the blow molding process, when the front mold assembly 1 contacts the rear mold assembly 2, the top block 5 squeezes the spring and retracts into the slide groove 4; after the blow molding is completed, the top block 5 moves under the tension of the spring and protrudes from the mold groove 3, and the top block 5 pushes the bottom end of the dust cover 7 to prevent it from sticking to the front mold assembly 1 or the rear mold assembly 2; when the dust cover 7 is separated from the mold, the mold moves horizontally, and the two clamping blocks 6 clamp the dust cover 7, and the blow needle at the top of the dust cover 7 is withdrawn, and the dust cover 7 remains on the fixture composed of the two clamping blocks 6, realizing the automatic part removal production process and shortening the production cycle.

[0040] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A blow mold with an anti-sticking mold, characterized in that: The invention comprises a front mold assembly (1) and a rear mold assembly (2) which are symmetrically arranged, wherein the front mold assembly (1) and the rear mold assembly (2) are both provided with mold grooves (3), and the mold grooves (3) are closed to form a mold cavity; the bottoms of the front mold assembly (1) and the rear mold assembly (2) are both provided with slide grooves (4), and an elastic top block (5) is connected in the slide groove (4); the top block (5) protrudes from the mold groove (3), or when the front mold assembly (1) and the rear mold assembly (2) are in contact, the top block (5) retracts into the slide groove (4).

2. The blow mold of the anti-sticking mold according to claim 1, characterized in that: The front mold assembly (1) comprises a front support plate (101), the inner side of which is sequentially connected to a front mold upper plate (102), a front mold core (103) and a front mold lower plate (104) in upper and lower order, and sealing members are provided between the upper and lower ends of the front mold core (103) and the front mold upper plate (102) and the front mold lower plate (104).

3. The blow mold of the anti-sticking mold according to claim 2, characterized in that: The rear mold assembly (2) comprises a rear support plate (201), the inner side of which is sequentially connected to a rear mold upper plate (202), a rear mold core (203), and a rear mold lower plate (204) at the upper and lower ends, and sealing members are provided between the upper and lower ends of the rear mold core (203) and the rear mold upper plate (202) and the rear mold lower plate (204).

4. A blow mold for an anti-sticking mold according to claim 3, characterized in that: The slide grooves (4) are arranged on the front mold lower plate (104) and the rear mold lower plate (204), and two slide grooves (4) are symmetrically arranged on each front mold lower plate (104) and the rear mold lower plate (204), and the slide grooves (4) pass through the front mold lower plate (104) and the rear mold lower plate (204).

5. The blow mold of the anti-sticking mold according to claim 3, characterized in that: The tail of the top block (5) is provided with an embedding groove (502), in which a spring is accommodated, and the other end of the spring abuts against the front support plate (101) and the rear support plate (201).

6. The blow mold of the anti-sticking mold according to claim 3, characterized in that: The outer opening of the slide groove (4) is provided with a limiting groove (401), the tail of the top block (5) is connected to the limiting block (501), and the limiting block (501) is slidably fitted in the limiting groove (401).

7. The blow mold of the anti-sticking mold according to claim 3, characterized in that: The mold grooves (3) on the front mold core (103) and the rear mold core (203) are corrugated.

8. A blow mold with an anti-sticking mold according to claim 7, characterized in that: Two clamping blocks (6) are symmetrically connected to the inner upper parts of the front support plate (101) and the rear support plate (201).

9. A blow mold with an anti-sticking mold according to claim 8, characterized in that: A flange is provided on the outer circumferential surface of the clamping block (6).

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