Core pulling structure of air filter lower shell injection molding assembly

Abstract

The utility model discloses a core pulling structure of an air filter lower shell injection molding assembly, which belongs to the technical field of injection molds, and adopts the technical scheme that the core pulling structure comprises an oil cylinder, a small sliding block and a large sliding block, the output end of the oil cylinder is connected with the small sliding block, the small sliding block is arranged on the large sliding block in a sliding manner, a limiting block is mounted on the large sliding block, and a linkage part is arranged on the small sliding block; a gap is formed between the end of the linkage part and the side wall of the limiting block, the oil cylinder can drive the small sliding block to move, so that the end of the linkage part abuts against the side wall of the limiting block, the large sliding block is driven to move, the small sliding block and the large sliding block can be subjected to core pulling through the single oil cylinder, the structure is simple, and the production and manufacturing difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and particularly relates to a core-pulling structure of an injection molding component of a lower shell of an air filter. Background Art

[0002] With the continuous progress of mechanization and industrialization, the application of molds in production workshops has become increasingly widespread. As an important process equipment in the manufacturing industry, molds play a key role in improving production efficiency with their convenience and efficiency. This development trend has not only promoted the innovation of production methods, but also promoted the improvement of the overall competitiveness of the manufacturing industry. Injection molds play a vital role in the production of plastic products. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to injecting heated and melted plastic into the mold cavity, and obtaining a molded product after cooling and solidification. The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic product.

[0003] The structure of the lower shell of the air filter is relatively complex, and it is necessary to use multiple sliders to achieve precise molding of the lower shell of the air filter. When demolding, it is usually necessary to first use an inclined guide pin to pull out the small slider, and then use a cylinder to pull out the large slider. The overall structure is relatively complex, and the difficulty of production and manufacturing is increased. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems in the prior art and propose a core-pulling structure for an air filter lower shell injection molding component. The technical problem to be solved by the utility model is: how to simplify the structure and reduce the difficulty of production and manufacturing.

[0005] The above-mentioned technical purpose of the utility model can be achieved through the following technical scheme: the core pulling structure of the injection molding component of the lower shell of the air filter includes an oil cylinder, a small slider and a large slider, the output end of the oil cylinder is connected to the small slider, the small slider is slidably arranged on the large slider, a limit block is installed on the large slider, the small slider has a linkage part, and there is a gap between the end of the linkage part and the side wall of the limit block, the oil cylinder can drive the small slider to move, so that the end of the linkage part abuts against the side wall of the limit block and drives the large slider to move.

[0006] In the core-pulling structure of the air filter lower housing injection molding assembly, the large slider is provided with a guide groove, the small slider is slidably disposed in the guide groove, and the side wall of the linkage part is in contact with the side wall of the guide groove.

[0007] In the core-pulling structure of the above-mentioned air filter lower shell injection molding component, an installation groove is opened on the large slider, and a guide positioning block 1 is installed in the installation groove. The lower surface of the guide positioning block 1 is in contact with the upper surface of the linkage part, and the side wall of the guide positioning block 1 is in contact with the side wall of the small slider.

[0008] In the core-pulling structure of the air filter lower shell injection molding assembly, a positioning groove corresponding to the limiting block is provided on the large slider, the limiting block is installed in the positioning groove, and the side wall of the limiting block is in contact with the side wall of the positioning groove.

[0009] In the core-pulling structure of the air filter lower shell injection molding assembly, a step groove is provided on the side wall of the large slider, a second guide positioning block is fitted in the step groove, and the side wall of the second guide positioning block fits with the side wall of the large slider.

[0010] In the core-pulling structure of the air filter lower shell injection molding assembly, there are two linkage parts respectively located on both sides of the small slider, there are two limit blocks respectively distributed at intervals, and the two linkage parts correspond to the two limit blocks respectively.

[0011] In the core pulling structure of the above-mentioned air filter lower shell injection molding component, there are two guide positioning blocks and the two are arranged opposite to each other, there are two installation grooves and the two are arranged opposite to each other, the two guide positioning blocks correspond to the two installation grooves respectively, and the two guide positioning blocks correspond to the two linkage parts respectively.

[0012] In the core-pulling structure of the injection molding assembly of the lower housing of the air filter, there are at least two guide positioning blocks 2, which are respectively located on both sides of the large sliding block.

[0013] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0014] 1. By installing a limit block on the large slider, when the oil cylinder drives the small slider to move to pull the core of the small slider, after the small slider moves a certain distance, the end of the linkage part abuts against the side wall of the limit block. As the small slider continues to move under the driving action of the oil cylinder, the linkage part cooperates with the limit block to drive the large slider to move to pull the core of the large slider. The small slider and the large slider can be pulled by a single oil cylinder, the structure is simple, and the difficulty of production and manufacturing is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 It is a partial structural schematic diagram of an embodiment;

[0017] Figure 3It is a schematic structural diagram of a large slider in an embodiment.

[0018] Figure numerals: 1, oil cylinder; 2, small slider; 3, large slider; 4, limit block; 5, linkage part; 6, gap; 7, guide groove; 8, mounting groove; 9, guide positioning block 1; 10, positioning groove; 11, step groove; 12, guide positioning block 2. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] The core-pulling structure of the injection molding component of the lower housing of the air filter, such as Figures 1 to 3 As shown, it includes a cylinder 1, a small slider 2 and a large slider 3. The output end of the cylinder 1 is connected to the small slider 2. The small slider 2 is slidably set on the large slider 3. Specifically, a guide groove 7 is opened on the large slider 3, and the small slider 2 is slidably set in the guide groove 7. The side wall of the linkage part 5 is in contact with the side wall of the guide groove 7. The guide groove 7 guides the small slider 2, so that the small slider 2 is more stable when moving.

[0021] A limit block 4 is installed on the large slider 3, and a linkage part 5 is provided on the small slider 2. A gap 6 is provided between the end of the linkage part 5 and the side wall of the limit block 4. In this embodiment, there are two linkage parts 5 and they are respectively located on both sides of the small slider 2, and there are two limit blocks 4 and they are spaced apart from each other. The two linkage parts 5 correspond to the two limit blocks 4 respectively.

[0022] The cylinder 1 can drive the small slider 2 to move, so that the end of the linkage part 5 abuts against the side wall of the limit block 4, and drives the large slider 3 to move. It should be noted that the end of the linkage part 5 can abut against the side wall of the limit block 4 only after the cylinder 1 drives the small slider 2 to move a certain distance, and this distance is the distance of the gap 6. When the end of the linkage part 5 abuts against the side wall of the limit block 4, as the small slider 2 continues to move, the linkage part 5 cooperates with the limit block 4 to drive the large slider 3 to move, thereby realizing the core pulling of the small slider 2 and the large slider 3. The small slider 2 and the large slider 3 can be pulled out by a single cylinder 1, the structure is simple, and the difficulty of production and manufacturing is reduced.

[0023] The large slider 3 is provided with an installation groove 8, in which a guide positioning block 9 is installed. The lower surface of the guide positioning block 9 is in contact with the upper surface of the linkage part 5, and the side wall of the guide positioning block 9 is in contact with the side wall of the small slider 2, so that the guide positioning block 9 can position and guide the small slider 2, thereby improving the stability of the small slider 2 when moving.

[0024] In this embodiment, there are two guide positioning blocks 9 and they are arranged opposite to each other, there are two installation grooves 8 and they are arranged opposite to each other, the two guide positioning blocks 9 correspond to the two installation grooves 8 respectively, and the two guide positioning blocks 9 correspond to the two linkage parts 5 respectively.

[0025] A positioning groove 10 corresponding to the limit block 4 is provided on the large slider 3. The limit block 4 is installed in the positioning groove 10. The side wall of the limit block 4 is in contact with the side wall of the positioning groove 10. The positioning groove 10 positions the limit block 4, thereby improving the stability of the limit block 4.

[0026] It should be noted that, in the present embodiment, the limit block 4 is installed in the positioning groove 10 by means of screws. As another solution, a strip hole can be directly opened on the large slider 3, and the small slider 2 can be installed on the large slider 3 by means of screws in combination with the strip hole. The small slider 2 can adjust its position along the length direction of the strip hole, thereby changing the distance of the gap 6 between the end of the linkage part 5 and the side wall of the limit block 4.

[0027] A step groove 11 is provided on the side wall of the large slider 3, and a guide positioning block 12 is fitted in the step groove 11. In the present embodiment, there are at least two guide positioning blocks 12, which are respectively located on both sides of the large slider 3, and the side walls of the guide positioning blocks 12 are fitted with the side walls of the large slider 3, so that the guide positioning blocks 12 can position and guide the large slider 3, thereby improving the stability of the large slider 3 when moving. Moreover, the two guide positioning blocks 12 are respectively located on both sides of the large slider 3, which can effectively ensure the balance of the large slider 3 when moving.

[0028] The specific embodiments described in this article are merely examples of the spirit of the utility model; technicians in the technical field to which the utility model belongs can make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. The core-pulling structure of the injection molding component of the lower housing of the air filter is characterized by: The invention comprises an oil cylinder (1), a small slider (2) and a large slider (3), wherein the output end of the oil cylinder (1) is connected to the small slider (2), the small slider (2) is slidably arranged on the large slider (3), a limit block (4) is installed on the large slider (3), the small slider (2) has a linkage part (5), a gap (6) is provided between the end of the linkage part (5) and the side wall of the limit block (4), and the oil cylinder (1) can drive the small slider (2) to move, so that the end of the linkage part (5) abuts against the side wall of the limit block (4), and drives the large slider (3) to move.

2. The core-pulling structure of the air filter lower housing injection molding assembly according to claim 1 is characterized in that: The large slider (3) is provided with a guide groove (7), the small slider (2) is slidably arranged in the guide groove (7), and the side wall of the linkage part (5) is in contact with the side wall of the guide groove (7).

3. The core-pulling structure of the air filter lower housing injection molding assembly according to claim 1 is characterized in that: The large slider (3) is provided with a mounting groove (8), and a guide positioning block (9) is installed in the mounting groove (8). The lower surface of the guide positioning block (9) is in contact with the upper surface of the linkage part (5), and the side wall of the guide positioning block (9) is in contact with the side wall of the small slider (2).

4. The core-pulling structure of the air filter lower housing injection molding assembly according to claim 1 is characterized in that: The large sliding block (3) is provided with a positioning groove (10) corresponding to the limiting block (4); the limiting block (4) is installed in the positioning groove (10); and the side wall of the limiting block (4) is in contact with the side wall of the positioning groove (10).

5. The core-pulling structure of the injection molding assembly of the lower housing of the air filter according to claim 1 is characterized in that: The side wall of the large sliding block (3) is provided with a step groove (11), a second guide positioning block (12) is fitted in the step groove (11), and the side wall of the second guide positioning block (12) fits with the side wall of the large sliding block (3).

6. The core-pulling structure of the injection molding assembly of the lower housing of the air filter according to claim 3 is characterized in that: There are two linkage parts (5) which are respectively located on both sides of the small slider (2); there are two limit blocks (4) which are spaced apart from each other; and the two linkage parts (5) correspond to the two limit blocks (4) respectively.

7. The core-pulling structure of the injection molding assembly of the lower housing of the air filter according to claim 6, characterized in that: There are two guide positioning blocks (9) and they are arranged opposite to each other, there are two installation grooves (8) and they are arranged opposite to each other, the two guide positioning blocks (9) correspond to the two installation grooves (8) respectively, and the two guide positioning blocks (9) correspond to the two linkage parts (5) respectively.

8. The core-pulling structure of the injection molding assembly of the lower housing of the air filter according to claim 5, characterized in that: There are at least two guide positioning blocks (12) and they are respectively located on both sides of the large sliding block (3).

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