Forced demolding structure of front mold

Abstract

The utility model discloses a forced demolding structure of a front mold, which relates to the technical field of injection molding and adopts the technical scheme that a plate A is used for connecting a front mold core; the plate B is used for being connected with the rear mold core, is arranged on one side of the plate A and can move towards or away from the plate A; the push plate is arranged on the side, away from the plate A, of the plate B, and a center mold core is arranged on the push plate; and the clutch assembly is arranged on the plate A, the plate B and the push plate and can be connected with the plate A and the plate B. When the mold is opened, the plate B and the push plate are opened firstly, and the plate A and the plate B are opened later. The mold has the beneficial effects that the mold opening and closing sequence of the mold is controlled by utilizing the clutch component, so that the situation that a product is forcibly separated and is damaged by pulling due to the fact that the plate A and the plate B are opened firstly is avoided. And the central core is firstly released, so that an enough forced release deformation space is provided for the product, and the requirements of no clamping line and no release damage on the appearance of the product are met.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a front mold strong release structure. Background Art

[0002] The lid structure of a product is often the first part that the user comes into contact with. Such products not only need to have the requirements of sealing and safety performance to maintain the contents, but also need to conform to the current aesthetic standards of consumer goods in appearance. For example, the product to be processed in this scheme is a plug cover made of TPE. The product has a leather texture on the outside, and there are three undercut structures on both sides of the middle rotating area, with a length of about 20mm and a depth of 0.4mm. In conventional technology, the undercut area is formed by the front mold inclined top, but due to the small size of this product and the limited area, the inclined top is difficult to make, and the product appearance area has a clamping line, which affects the appearance and touch of the product. Therefore, taking into account the material of the product and the characteristics of the product itself, this front mold strong release structure is developed. Utility Model Content

[0003] In view of one of the deficiencies of the prior art, the utility model provides a front mold strong release structure to solve the problem of undercut structure processing during the production of small-sized products.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a front mold strong release structure, comprising:

[0005] A plate, used to connect the front mold core;

[0006] The B plate is used to connect the rear mold core. The B plate is arranged on one side of the A plate and can move toward or away from the A plate;

[0007] A push plate is arranged on a side of the B plate away from the A plate, and a central core is arranged on the push plate;

[0008] The clutch assembly is arranged on the A plate, the B plate and the push plate, and can connect the A plate and the B plate. When the mold is opened, the B plate and the push plate are opened first, and the A plate and the B plate are opened later.

[0009] Preferably, one end of the central core is fixedly connected to the push plate, and the other end passes through the B plate and extends to the position of the rear mold core.

[0010] Preferably, it also includes:

[0011] The ejector panel is arranged on the side of the push plate away from the B plate. The ejector panel and the B plate are linked. The ejector panel is connected to the push rod of the injection molding machine. The injection molding machine can drive the ejector panel to perform the ejection action.

[0012] Preferably, it also includes:

[0013] A straight ejector assembly has one end connected to the ejection panel, and the other end passes through the push plate and the B plate and then is connected to the A plate.

[0014] Preferably, it also includes:

[0015] A return pin has one end connected to the ejection panel and the other end passing through the push plate and connected to the B plate.

[0016] Preferably, it also includes:

[0017] The spring is sleeved on the outside of the return pin, and a through hole is provided on the push plate corresponding to the spring. One end of the spring abuts against the ejection panel, and the other end passes through the push plate and abuts against the B plate.

[0018] Preferably, the clutch assembly comprises:

[0019] Half one, fixedly connected to the A plate;

[0020] Half part two, fixedly connected to the B plate;

[0021] A linkage member, fixedly connected to the push plate;

[0022] The linkage piece can be linked with the first half, and the first half can be connected to or separated from the second half through the linkage of the linkage piece.

[0023] Preferably, the first half comprises:

[0024] A first fixing portion, fixedly connected to the outer side surface of the A plate;

[0025] The first hanging member is connected to the first fixing part and can hang the second half part. The first hanging member can be linked with the linkage member.

[0026] Preferably, the second half comprises:

[0027] A second fixing portion is fixedly connected to the outer side surface of the B plate and corresponds to the first fixing portion. When the mold is closed, the first fixing portion and the second fixing portion are attached to each other;

[0028] The second hanging member is fixedly arranged on the second fixing portion, and the first hanging member can be hung with the second half part through the second hanging member.

[0029] Preferably, a through slot is provided inside the second fixing part, the through direction of the through slot is parallel to the direction of opening and closing of the mold, the first hanging member is a hook, the hook body of the first hanging member can extend into the through slot of the second fixing part, and the second hanging member is a convex block arranged in the through slot of the second fixing part, and the convex block corresponds to the hook body of the first hanging member;

[0030] The linkage member is an insertion rod, and the linkage member can be inserted into the through slot. When the linkage member is located in the through slot, the linkage member abuts against the side surface of the first hanging member.

[0031] Compared with the prior art, it has the following beneficial effects:

[0032] 1. Fix the center core separately with the push plate and increase the demoulding slope on the B plate, which is beneficial to the mold assembly and enables the B plate to better cooperate with the center core during frequent movements.

[0033] 2. Use the clutch assembly to control the opening and closing sequence of the mold to avoid the situation where the product is forced to separate and be damaged because the A plate and the B plate are opened first.

[0034] 3. The B plate and the ejector plate are fixedly connected by the return pins. The ejector plate can be pushed out by the push rod of the injection molding machine, and the B plate can be driven to move at the same time, so that the center core can be pulled out first. The center core is pulled out first, giving the product enough space for strong deformation, so that the product appearance has no clamping lines and no skin damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the explosion structure of an embodiment of the present application;

[0036] Figure 2 This is a diagram of the mold-closing state of the embodiment of the present application;

[0037] Figure 3 This is a state diagram of the clutch assembly after mold closing according to an embodiment of the present application;

[0038] Figure 4 This is a schematic diagram of the state where the center core of the embodiment of the present application is first pulled out;

[0039] Figure 5 This is a state diagram of the clutch assembly when the center core is first pulled out of the core in an embodiment of the present application.

[0040] In the figure:

[0041] 10. Front mold core; 20. Back mold core; 30. Center core;

[0042] 1. Plate A; 2. Plate B; 3. Push plate; 4. Ejector panel; 5. Clutch assembly; 51. Half one; 511. First hanging part; 52. Half two; 521. Second hanging part; 53. Linkage part; 6. Straight ejector assembly; 61. Straight ejector head; 7. Return pin; 71. Connecting block; 8. Spring; 9. Square iron. DETAILED DESCRIPTION

[0043] 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.

[0044] See also Figure 1-Figure 5 , this application provides the following technical solutions:

[0045] A front mold strong release structure includes A plate 1 and B plate 2, wherein A plate 1 is used to connect the front mold core 10; B plate 2 is used to connect the rear mold core 20, B plate 2 is arranged on one side of A plate 1, and can move toward or away from A plate 1; a push plate 3 is arranged on the side of B plate 2 away from A plate 1, and a central core 30 is arranged on the push plate 3, and the push plate 3 is fixedly connected to the external structure. In this scheme, A plate 1 is located at the top of the three, B plate 2 is located in the middle, and push plate 3 is arranged on the square iron 9 of the injection molding mechanism. A clutch assembly 5 is arranged on A plate 1, B plate 2 and push plate 3, and the clutch assembly 5 can connect A plate 1 and B plate 2. Through the action of the clutch assembly 5, when the mold is opened, B plate 2 and push plate 3 are opened first, and A plate 1 and B plate 2 are opened later. Through the above actions, all the parts above the push plate 3 are ejected, and the central core 30 is pulled out first, so as to realize the front mold of the product. The strong release is achieved, which ensures the smooth movement of the mold structure and the appearance of the product.

[0046] On the basis of the above implementation scheme, the specific structure of the front mold strong release structure includes the following points.

[0047] One end of the central core 30 is fixedly connected to the push plate 3, and the other end passes through the B plate 2 and extends to the position of the rear mold core 20. An ejection panel 4 is arranged on the side of the push plate 3 away from the B plate 2. The ejection panel 4 and the B plate 2 are linked. The ejection panel 4 is connected to the push rod of the injection molding machine, and the injection molding machine can drive the ejection panel 4 to perform the ejection action. A straight ejector assembly 6 and a return pin 7 are also arranged on the ejection panel 4. The straight ejector assembly 6 includes a straight ejector rod. One end of the straight ejector rod is connected to the ejection panel 4, and the other end passes through the push plate 3 and the B plate 2 and is connected to the A plate 1 through the straight ejector head 61. One end of the return pin 7 is connected to the ejection panel 4, and the other end passes through the push plate 3 and is connected to the B plate 2 through the connecting block 71. A spring 8 is sleeved on the outside of the return pin 7, and a through hole is arranged on the push plate 3 corresponding to the spring 8. One end of the spring 8 abuts against the ejection panel 4, and the other end passes through the push plate 3 and abuts against the B plate 2.

[0048] Through the above-mentioned scheme content, the front mold strong stripping structure of this scheme is formed. On this basis, the specific arrangement form of other peripheral structures such as square iron 9 can be adjusted accordingly by using prior art, and no more details are given here.

[0049] On the basis of the above implementation plan, Figure 2 The diagram shown is a schematic diagram of the solution in the mold closing state. Figure 4 The display is a state diagram of the center core 30 of this solution being pulled out first. Figure 3 and Figure 5 The clutch assembly 5 in the corresponding two states is shown in Figures 1 and 2. Referring to the above figures, the clutch assembly 5 of the present solution includes a half 1 51, a half 2 52 and a linkage assembly 53. The half 1 51 is fixedly connected to the A plate 1; the half 2 52 is fixedly connected to the B plate 2; the linkage member 53 is fixedly connected to the push plate 3; the linkage member 53 can be linked with the half 1 51, and the half 1 51 can be connected or separated with the half 2 52 through the linkage of the linkage member 53.

[0050] As the installation position of the clutch assembly 5 of this solution, Figure 1 As shown, the first half 51 includes a first fixing part and a first hanging member 511, the first fixing part is fixedly arranged on the outer side of the A plate 1; the first hanging member 511 is a hook structure, which is rotatably connected with the first fixing part, and the second half 52 can be hung through the first hanging member 511, and the first hanging member 511 can be linked with the linkage member 53. The second half 52 includes a second fixing part and a second hanging member 521, the second fixing part is fixedly connected to the outer side of the B plate 2, and corresponds to the first fixing part. When the mold is closed, the first fixing part and the second fixing part are attached; the second hanging member 521 is fixedly arranged on the second fixing part, and the first hanging member 511 can be hung with the second half 52 through the second hanging member 521.

[0051] As long as the relevant structures of the above schemes are met, the idea direction of this scheme to solve the technical problems can be realized. As a technician in the field, you can make relevant structural adjustments based on the ideas of this scheme and the existing technology.

[0052] On the basis of the above implementation scheme, this scheme provides a specific implementation form, in which a through slot is provided inside the second fixing part, and the through direction of the through slot is parallel to the direction of opening and closing of the mold. The first hanging part 511 is a hook, and the hook body of the first hanging part 511 can extend into the through slot of the second fixing part. The second hanging part 521 is a convex block arranged in the through slot of the second fixing part, and the convex block corresponds to the hook body of the first hanging part 511; the linkage part 53 is an insertion rod, and the linkage part 53 can be inserted into the through slot, and when the linkage part 53 is located in the through slot, the linkage part 53 abuts against the side of the first hanging part 511. Figure 3As shown, in the mold closing state, the linkage member 53 is inserted into the first fixing part and the second fixing part. In this state, because the linkage member 53 limits the first hanging member 511, the first hanging member 511 keeps hooking the second hanging member 521, and the half 1 51 and the half 2 52 will not separate, that is, the A plate 1 and the B plate 2 keep in contact with each other. As the B plate 2 and the push plate 3 gradually move away, the linkage member 53 is gradually pulled out of the internal space of the first fixing part, presenting a Figure 5 In the state shown, the first hanging member 511 is no longer limited, so it can be twisted, so that the A plate and the B plate can present a subsequent separation state.

[0053] 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 with 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 front mold strong release structure, comprising the following features: include: A plate (1), used for connecting the front mold core (10); A B plate (2) is used for connecting the rear mold core (20), and the B plate (2) is arranged on one side of the A plate (1) and can move toward or away from the A plate (1); A push plate (3) is arranged on a side of the B plate (2) away from the A plate (1), and a central core (30) is arranged on the push plate (3); The clutch assembly (5) is arranged on the A plate (1), the B plate (2) and the push plate (3), and can connect the A plate (1) and the B plate (2). When the mold is opened, the B plate (2) and the push plate (3) are opened first, and the A plate (1) and the B plate (2) are opened later.

2. The front mold strong release structure according to claim 1, characterized in that: One end of the central core (30) is fixedly connected to the push plate (3), and the other end passes through the B plate (2) and extends to the position of the rear mold core (20).

3. The front mold strong release structure according to claim 1, characterized in that: Also includes: The ejection panel (4) is arranged on a side of the push plate (3) away from the B plate (2). The ejection panel (4) and the B plate (2) are linked. The ejection panel (4) is connected to a push rod of an injection molding machine. The injection molding machine can drive the ejection panel (4) to perform an ejection action.

4. The front mold strong release structure according to claim 3, characterized in that: Also includes: A straight ejector assembly (6) has one end connected to the ejection panel (4) and the other end connected to the A plate (1) after passing through the push plate (3) and the B plate (2).

5. The front mold strong release structure according to claim 4, characterized in that: Also includes: A return pin (7) has one end connected to the ejection panel (4) and the other end passing through the push plate (3) and then connected to the B plate (2).

6. The front mold strong release structure according to claim 5, characterized in that: Also includes: The spring (8) is sleeved on the outside of the return pin (7), and a through hole is provided on the push plate (3) corresponding to the spring (8). One end of the spring (8) abuts against the ejection panel (4), and the other end passes through the push plate (3) and abuts against the B plate (2).

7. The front mold forced release structure according to any one of claims 1 to 6, characterized in that: The clutch assembly (5) comprises: Half part one (51), fixedly connected to the A plate (1); Half part 2 (52), fixedly connected to the B plate (2); A linkage member (53) fixedly connected to the push plate (3); The linkage member (53) can be linked with the first half (51), and the first half (51) can be connected to or separated from the second half (52) through the linkage of the linkage member (53).

8. The front mold strong release structure according to claim 7, characterized in that: The first half (51) comprises: A first fixing portion, fixedly connected to the outer side surface of the A plate (1); The first hanging member (511) is connected to the first fixing part and can be hung on the second half (52). The first hanging member (511) can be linked with the linkage member (53).

9. The front mold strong release structure according to claim 8, characterized in that: The second half (52) comprises: A second fixing portion is fixedly connected to the outer side surface of the B plate (2) and corresponds to the first fixing portion. When the mold is closed, the first fixing portion and the second fixing portion are attached to each other; The second hanging member (521) is fixedly arranged on the second fixing portion, and the first hanging member (511) can be hung with the second half (52) through the second hanging member (521).

10. The front mold strong release structure according to claim 9, characterized in that: A through slot is provided inside the second fixing part, and the through direction of the through slot is parallel to the direction of opening and closing of the mold; the first hanging member (511) is a hook, and the hook body of the first hanging member (511) can extend into the through slot of the second fixing part; the second hanging member (521) is a convex block arranged in the through slot of the second fixing part, and the convex block corresponds to the hook body of the first hanging member (511); The linkage member (53) is an insertion rod, and the linkage member (53) can be inserted into the through slot. When the linkage member (53) is located in the through slot, the linkage member (53) abuts against the side surface of the first hanging member (511).

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