Mold opening ejection delay structure and injection mold

Abstract

The utility model discloses a mold opening ejection delay structure and an injection mold, relates to the technical field of injection molding, and adopts the technical scheme that the mold opening ejection delay structure comprises a first moving part which synchronously moves along with mold opening or mold closing of the mold; the second moving part is linked with the first moving part, and a product part is arranged on one side of the second moving part; the linkage movement direction of the second movement piece and the first movement piece is that the product part moves towards or away from the structural surface; the delay matching part is arranged at the linkage position of the first moving part and the second moving part, and when the first moving part and the second moving part are located on the delay matching part, the first moving part and the second moving part are not in linkage. The utility model has the beneficial effects that the scheme can ensure that the ejection is effectively delayed, so that the product is fixed on the ejection side. According to the scheme, delay matching is achieved by combining a linkage structure of the first moving part and the second moving part, the cost of an oil cylinder does not need to be increased, delay of the ground side large sliding block is controlled through mechanical driving, and the mold cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a mold opening and ejection delay structure and an injection mold. Background Art

[0002] With the development of society and the continuous improvement of mold technology, the price of mold industry is getting lower and lower, and the production cycle time of mold is getting shorter and shorter. The large slider on the ground side falls down due to its own weight and cannot be fixed by the cylinder and limit clamp, and the delayed action of the slider cannot be effectively guaranteed. There will be a problem of strong clamping force between the product and the large slider on the ground side, and the front mold will be adhered, resulting in product deformation. Figure 1 The structure of a product 100 similar to an injection molding process is shown, wherein the structural surface 101 of the product is the surface that is prone to the above-mentioned problem. In addition, there are the following two problems with the method of using a limit clamp and a cylinder to control the delay of the large slider on the ground side in the existing solution.

[0003] 1. The limit clamp itself has load requirements, and it is easy to fail over time. It needs to be maintained and replaced on time, resulting in the inability to continue production.

[0004] 2. The large slider is delayed in action by the oil cylinder; the slider is on the ground side, and there is a risk of pressure release due to its own weight, and the oil cylinder drive has a long production cycle and high mold cost. Summary of the invention

[0005] In view of one of the deficiencies of the prior art, the utility model provides a mold opening and ejection delay structure and an injection mold, which solve the ejection delay problem when the injection mold is opened.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a mold opening and ejection delay structure, comprising:

[0007] The first moving part is linked with the mold, and the first moving part moves synchronously with the opening or closing of the mold;

[0008] The second moving member is linked with the first moving member, a product portion is arranged on one side of the second moving member, and a shape of the product portion corresponds to a structural surface of the product; the movement direction of the second moving member in linkage with the first moving member is that the product portion moves toward or away from the structural surface;

[0009] The delayed matching part is arranged at the linkage position of the first moving part and the second moving part. When the first moving part and the second moving part are located at the delayed matching part, the first moving part and the second moving part are not linked.

[0010] Preferably, the first moving member is a rod structure, and the moving direction of the first moving member is a vertical direction;

[0011] The second moving member is a block structure, and the moving direction of the second moving member is horizontal.

[0012] Preferably, a through hole is formed on the second moving member, and the first moving member passes through the second moving member and is linked with the second moving member through the through hole;

[0013] The delayed mating portion is arranged at the through hole mating structure between the first moving part and the second moving part.

[0014] Preferably, the first moving member comprises:

[0015] A straight body portion, located on the upper portion of the first moving member;

[0016] The through hole of the second moving member comprises:

[0017] A straight hole area corresponds to the straight body portion; when the straight body portion is located in the straight hole area, the second moving member does not move in conjunction with the first moving member;

[0018] The straight body portion and the straight hole region form the delayed fit portion.

[0019] Preferably, the first moving member further comprises:

[0020] An oblique body portion, located at the lower side of the straight body portion and connected to the straight body portion;

[0021] The through hole of the second moving member comprises:

[0022] an oblique hole region, corresponding to the oblique body portion;

[0023] When the oblique body portion abuts against the inner wall of the oblique hole area, the second moving member is linked with the first moving member.

[0024] Preferably, the side of the ejection delay structure facing the product is the product side, the outer surface of the straight body portion facing the product side is a vertical surface, and the inner side surface of the straight hole area close to the product side is a vertical surface.

[0025] Preferably, the outer surface of the oblique body portion away from the product side is an inclined surface, and the upper end of the oblique body portion is connected to the straight body portion, and the lower end is inclined toward the direction away from the product side.

[0026] Preferably, it also includes:

[0027] The first limiting member is arranged on the outer side of the second moving member, and the first limiting member forms a limiting structure for limiting the horizontal movement of the second moving member.

[0028] Preferably, it also includes:

[0029] The second limiting member is arranged at one end of the movement stroke of the second moving member, and the second limiting member serves as a limiting structure for the second moving member to be away from the displacement position of the product.

[0030] Preferably, it also includes:

[0031] The connecting member is arranged on the upper part of the first moving member and is used for fixedly connecting the first moving member and the external structure.

[0032] An injection mold, which makes the above-mentioned mold opening and ejection delay structure, includes mold part A and mold part B, mold part A can move toward or away from mold part B, and an injection space corresponding to the product is formed between mold part A and mold part B; the first moving part of the mold opening and ejection delay structure is fixedly connected to mold part A, and the first moving part is slidably connected to mold part B.

[0033] Compared with the prior art, the present invention has the following beneficial effects: the mold opening and ejection delay structure of the present invention can ensure effective delayed exit, so that the product is fixed on the ejection side. The present invention realizes delayed matching by combining the linkage structure of the first moving part and the second moving part, without increasing the cost of the oil cylinder, and controls the delay of the large slider on the ground side through mechanical drive, thereby reducing the mold cost. The present invention does not add too many additional mechanisms, and the delay requirements can be met by changing the square oblique guide column as the form of the first moving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a product of the background technology of this application;

[0035] Figure 2 This is a schematic diagram of the use status of an embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of the ejection delay structure of an embodiment of the present application;

[0037] Figure 4 A top view of the ejection delay structure of an embodiment of the present application;

[0038] Figure 5 for Figure 4 AA section view;

[0039] Figure 6 for Figure 5 A partial enlarged view of;

[0040] Figure 7 This is a schematic diagram of the injection mold structure of an embodiment of the present application;

[0041] Figure 8 This is a schematic diagram of the internal structure of the injection mold of an embodiment of the present application.

[0042] In the figure:

[0043] 100, product; 101, structural surface; 200, mold part A; 300, mold part B;

[0044] 1. First moving part; 11. Straight body; 12. Oblique body; 2. Second moving part; 21. Product part; 22. Through hole; 221. Straight hole area; 222. Oblique hole area 3. First limiting part; 4. Second limiting part; 5. Connecting part. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] See also Figure 1-Figure 6 , this application provides the following technical solutions:

[0047] A mold opening and ejection delay structure includes a first moving part 1 and a second moving part 2, wherein the first moving part 1 is linked with the mold, and the first moving part 1 moves synchronously with the opening or closing of the mold; the second moving part 2 is linked with the first moving part 1, and a product part 21 is arranged on one side of the second moving part 2, and the shape of the product part 21 corresponds to the structural surface 101 of the product 100; the movement direction of the second moving part 2 linked with the first moving part 1 is that the product part 21 moves toward or away from the structural surface 101; a delayed matching part is arranged at the linkage position of the first moving part 1 and the second moving part 2, and when the first moving part 1 and the second moving part 2 are located at the delayed matching part, the first moving part 1 and the second moving part 2 are not linked.

[0048] Through the scheme of this structure, when the mold is opened, the first moving part 1 rises with the mold opening action. At this time, the first moving part 1 rises with it. Because of the delay matching part, the second moving part 2 is temporarily immobile. When it exceeds the range of the delay matching part, the first moving part 1 drives the second moving part 2 to move horizontally, and the second moving part 2 is separated from the product 100, thereby realizing the delay of mold opening and ejection. This implementation method of the scheme does not need to add a cylinder to the mold, and can be modified with the help of the existing structure of the mold, which has very good promotion significance.

[0049] On the basis of the above implementation scheme, the first moving part 1 is a rod structure, and the moving direction of the first moving part 1 is the vertical direction, that is, the direction of opening and closing the mold; the second moving part 2 is a block structure, and the moving direction of the second moving part 2 is the horizontal direction. A through hole 22 is provided on the second moving part 2, and the first moving part 1 passes through the second moving part 2 and is linked with the second moving part 2 through the through hole 22; the delayed matching part is arranged at the matching structure of the first moving part 1 and the second moving part 2 in the through hole 22.

[0050] The first moving part 1 of this solution is a rod structure, and the inclined guide column in the existing mold can be used as the first moving part 1, and one side of the second moving part 2 is in contact with the product 100, and the large slider on the ground side of the existing mold can be used for modification. The modified position is the through hole 22 of the second moving part 2, and the first moving part 1 and the second moving part 2 are modified at this location, so as to realize the setting of the delayed matching part of this solution.

[0051] On the basis of the above implementation scheme, the first moving part 1 adopts a square rod structure as a whole, including a straight body part 11 and an oblique body part 12. The straight body part 11 is located at the upper part of the first moving part 1; the oblique body part 12 is located at the lower side of the straight body part 11 and connected to the straight body part 11. Corresponding to the first moving part 1, the through hole 22 of the second moving part 2 includes a straight hole area 221 and an oblique hole area 222. The straight hole area 221 corresponds to the straight body part 11; the oblique hole area 222 corresponds to the oblique body part 12. When the straight body part 11 is located in the straight hole area 221, the second moving part 2 does not move in conjunction with the first moving part 1; when the oblique body part 12 abuts against the inner wall of the oblique hole area 222, the second moving part 2 moves in conjunction with the first moving part 1. The straight body part 11 and the straight hole area 221 form a delayed matching portion.

[0052] The vertical height of the straight body portion 11 and the straight hole area 221 of the delayed matching portion is 10 mm, that is, when the mold is opened, within 10 mm of the mold opening, the second moving part 2, i.e. the large slider on the ground side, is delayed and does not move, effectively fixing the product on the ejection side before exiting.

[0053] On the basis of the above implementation scheme, this scheme can adopt the structure form that the first moving part 1 is a square rod as a whole, and can also be deformed and modified to a certain extent. The basis of the modification at least satisfies the following settings.

[0054] The side of the ejection delay structure facing the product 100 is the product side, the outer surface of the straight body portion 11 facing the product side is a vertical surface, and the inner surface of the straight hole area 221 close to the product side is a vertical surface. The outer surface of the oblique body portion 12 away from the product side is an inclined surface, and the upper end of the oblique body portion 12 is connected to the straight body portion 11, and the lower end is inclined in the direction away from the product side.

[0055] On the basis of the above implementation scheme, the present solution is further provided with a first limiter 3 and a second limiter 4. The first limiter 3 is arranged on the outside of the second moving part 2, and the first limiter 3 forms a limiter structure for limiting the horizontal movement of the second moving part 2. The second limiter 4 is arranged at one end of the movement stroke of the second moving part 2, and the second limiter 4 serves as a limiter structure for the displacement position of the second moving part 2 away from the product 100. The first limiter 3 and the second limiter 4 are arranged mainly to ensure the movement trajectory of the second moving part 2 and prevent it from slipping out of the movement position to be set.

[0056] A connecting member 5 is also provided on the upper portion of the first moving member 1 , and the connecting member 5 is used for fixedly connecting the first moving member 1 and the external structure.

[0057] Based on the above implementation scheme, see Figure 7 and Figure 8 This solution also proposes an injection mold, which makes the aforementioned mold opening and ejection delay structure include mold part A200 and mold part B300, mold part A200 can move toward or away from mold part B300, and an injection space corresponding to the product 100 is formed between mold part A200 and mold part B300; the first moving part 1 of the mold opening and ejection delay structure is fixedly connected to mold part A200, and the second moving part 2 is slidably connected to mold part B300. Through this solution, the ejection delay requirement during mold opening can be met, the mold cost caused by the oil cylinder can be saved, and the production cycle can be shortened.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold opening and ejection delay structure, characterized in that: include: The first moving part (1) is linked with the mold, and the first moving part (1) moves synchronously with the opening or closing of the mold; The second moving member (2) is linked with the first moving member (1); a product portion (21) is provided on one side of the second moving member (2); the shape of the product portion (21) corresponds to the structural surface (101) of the product (100); the movement direction of the second moving member (2) in linkage with the first moving member (1) is that the product portion (21) moves toward or away from the structural surface (101); The delayed matching portion is arranged at a linkage position between the first moving member (1) and the second moving member (2); when the first moving member (1) and the second moving member (2) are located at the delayed matching portion, the first moving member (1) and the second moving member (2) are not linked.

2. The mold opening and ejection delay structure according to claim 1, characterized in that: The first moving member (1) is a rod structure, and the moving direction of the first moving member (1) is a vertical direction; The second moving member (2) is a block structure, and the moving direction of the second moving member (2) is a horizontal direction.

3. The mold opening and ejection delay structure according to claim 2, characterized in that: The second moving member (2) is provided with a through hole (22), the first moving member (1) passes through the second moving member (2), and is linked with the second moving member (2) through the through hole (22); The delayed matching portion is arranged at the matching structure of the first moving part (1) and the second moving part (2) at the through hole (22).

4. The mold opening and ejection delay structure according to claim 3, characterized in that: The first moving member (1) comprises: A straight body portion (11) located above the first moving member (1); The through hole (22) of the second moving member (2) comprises: A straight hole area (221) corresponds to the straight body portion (11); when the straight body portion (11) is located in the straight hole area (221), the second moving member (2) does not move in conjunction with the first moving member (1); The straight body portion (11) and the straight hole area (221) form the delayed fitting portion.

5. The mold opening and ejection delay structure according to claim 4, characterized in that: The first moving member (1) further comprises: An oblique body portion (12) is located at the lower side of the straight body portion (11) and is connected to the straight body portion (11); The through hole (22) of the second moving member (2) comprises: An oblique hole area (222), corresponding to the oblique body portion (12); When the inclined body portion (12) abuts against the inner wall of the inclined hole area (222), the second moving member (2) and the first moving member (1) are linked.

6. The mold opening and ejection delay structure according to claim 5, characterized in that: The side of the ejection delay structure facing the product (100) is the product side, the outer surface of the straight body portion (11) facing the product side is a vertical surface, and the inner surface of the straight hole area (221) close to the product side is a vertical surface.

7. The mold opening and ejection delay structure according to claim 6, characterized in that: The outer surface of the oblique body portion (12) away from the product side is an inclined surface, the upper end of the oblique body portion (12) is connected to the straight body portion (11), and the lower end is inclined in a direction away from the product side.

8. The mold opening and ejection delay structure according to any one of claims 1 to 7, characterized in that: Also includes: The first limiting member (3) is arranged on the outer side of the second moving member (2), and the first limiting member (3) forms a limiting structure for limiting the horizontal movement of the second moving member (2).

9. The mold opening and ejection delay structure according to any one of claims 1 to 7, characterized in that: Also includes: The second limiting member (4) is arranged at one end of the movement stroke of the second moving member (2), and the second limiting member (4) serves as a limiting structure for the second moving member (2) to move away from the displacement position of the product (100).

10. An injection mold, characterized in that: A mold opening and ejection delay structure as described in any one of claims 1 to 9 comprises a mold part A (200) and a mold part B (300), wherein the mold part A (200) can move toward or away from the mold part B (300), and an injection molding space corresponding to the product (100) is formed between the mold part A (200) and the mold part B (300); a first moving part (1) of the mold opening and ejection delay structure is fixedly connected to the mold part A (200), and a second moving part (2) is slidably connected to the mold part B (300).

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