Forced resetting mechanism

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a forced reset mechanism which comprises an ejector rod, an ejector pin bottom plate is installed at the upper end of the ejector rod through a connecting structure, an ejector pin plate is fixedly connected to the upper side of the ejector pin bottom plate, and the connecting structure comprises a connecting rod fixedly connected to the upper side of the ejector rod and a limiting block fixedly connected to the lower side of the ejector pin bottom plate. The limiting block and the connecting rod are connected together in a clamping mode, the connecting rod comprises a rod body fixedly connected to the upper end of the ejector rod, a hanging table is fixedly connected to the upper end of the rod body, the outer diameter of the hanging table is larger than the inner diameter of the rod body, the limiting block comprises a block body fixedly connected to the lower side of the ejector pin bottom plate through a screw, and a small limiting hole is formed in the block body. The inner diameter of the small limiting hole is larger than the outer diameter of the rod body and smaller than the outer diameter of the hanging table. According to the utility model, forced resetting of the ejector plate can be completed, so that the problem of die pressing caused by incomplete resetting of the ejector plate can be reduced when the return spring fails.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and specifically relates to a forced resetting mechanism. Background Art

[0002] The ejector plate of the current mold is mainly reset by a spring during use. However, as the use time increases, the spring ages with the material and produces a lot of fatigue damage, causing the spring to gradually fail, and the degree of aging is not easy to detect. When the spring is severely damaged and fails, the severely aged spring cannot effectively reset the ejector plate completely, and molding problems caused by incomplete reset of the ejector plate are prone to occur when the mold is used. Utility Model Content

[0003] The utility model aims to provide a forced resetting mechanism, which can complete the forced resetting of the ejector plate, so as to reduce the die pressing problem caused by the incomplete resetting of the ejector plate when the return spring fails.

[0004] The technical solutions adopted in this utility are as follows:

[0005] A forced reset mechanism comprises an ejector rod, an ejector base plate is installed on the upper end of the ejector rod through a connecting structure, and an ejector plate is fixedly connected to the upper side of the ejector base plate.

[0006] Furthermore, the connection structure includes a connecting rod fixedly connected to the upper side of the ejector rod and a limiting block fixedly connected to the lower side of the ejector bottom plate, and the limiting block and the connecting rod are connected together by a clamping manner.

[0007] Furthermore, the connecting rod includes a rod body fixedly connected to the upper end of the ejector rod, the upper end of the rod body is fixedly connected to a hanging platform, the outer diameter of the hanging platform is larger than the inner diameter of the rod body, the limiting block includes a block body fixedly connected to the lower side of the ejector base plate by screws, a small limiting hole is provided on the block body, the inner diameter of the small limiting hole is larger than the outer diameter of the rod body and smaller than the outer diameter of the hanging platform, a large limiting hole is provided on the block body and located on the upper side of the small limiting hole, the inner diameter of the large limiting hole is larger than the outer diameter of the hanging platform, and one side of the small limiting hole and the large limiting hole are both open.

[0008] Furthermore, the axes of the rod body and the hanging platform overlap, and the axes of the small limiting hole and the large limiting hole overlap.

[0009] Furthermore, the block is fixedly connected to the lower side of the ejector base plate by screws.

[0010] Furthermore, the block is provided with a lower flaring guide area and an upper flaring guide area located on the upper side of the lower flaring guide area, one end of the lower flaring guide area is connected to the opening of the small limiting hole, and the opening size of the lower flaring guide area gradually increases from the end close to the small limiting hole to the end far away from the small limiting hole, one end of the upper flaring guide area is connected to the opening of the large limiting hole, and the opening size of the upper flaring guide area gradually increases from the end close to the large limiting hole to the end far away from the large limiting hole.

[0011] The technical effects achieved by this utility model are:

[0012] The utility model discloses a forced reset mechanism which connects the ejector rod and the ejector plate by setting a connection structure, and can complete the forced reset of the ejector plate by the movement of the ejector rod, so as to reduce the die pressing problem caused by the incomplete reset of the ejector plate when the return spring fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side view of the cutaway structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a partial enlarged view of the practical limit block;

[0016] Figure 4 It is a top view of the structure of the practical limit block.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Return spring; 2. Ejector base plate; 3. Limit block; 4. Connecting rod; 5. Ejector stick; 6. Ejector plate; 7. Block; 8. Small limit hole; 9. Large limit hole; 10. Lower flaring guide area; 11. Upper flaring guide area; 12. Hanging platform; 13. Rod body. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0020] like Figure 1-4As shown, a forced reset mechanism includes an ejector rod 5, the upper end of the ejector rod 5 is installed with an ejector base plate 2 through a connecting structure, and the upper side of the ejector base plate 2 is fixedly connected with an ejector plate 6, and the fixing method is preferably screw fixing. At this time, when the ejector rod 5 moves vertically, the ejector base plate 2 can be driven to reset through the connecting structure, so that when the return spring 1 fails, the ejector plate 6 can be forced to reset, reducing the die-casting problem caused by incomplete reset of the ejector plate 6.

[0021] The connection structure includes a connecting rod 4 fixedly connected to the upper side of the ejector rod 5 and a limit block 3 fixedly connected to the lower side of the ejector base plate 2. The limit block 3 and the connecting rod 4 can be screwed, magnetically connected or clamped. Figure 2-4 As shown, in the technical solution, the limit block 3 and the connecting rod 4 are preferably connected together by a snap-on method, specifically, the connecting rod 4 includes a rod body 13 fixedly connected to the upper end of the ejector rod 5, the upper end of the rod body 13 is fixedly connected to a hanging platform 12 overlapping the axis of the rod body 13, the outer diameter of the hanging platform 12 is larger than the inner diameter of the rod body 13, the limit block 3 includes a block body 7 fixedly connected to the lower side of the ejector base plate 2 by screws, a small limit hole 8 is opened on the block body 7, and the inner diameter of the small limit hole 8 is larger than the outer diameter of the rod body 13 and smaller than the hanging platform 12. The outer diameter of the rod body 13 allows the rod body 13 to enter the small limiting hole 8. A large limiting hole 9 overlapping the axis of the small limiting hole 8 is provided on the block body 7 and located on the upper side of the small limiting hole 8. The inner diameter of the large limiting hole 9 is larger than the outer diameter of the hanging platform 12, so that the hanging platform 12 can be stuck on the step structure formed by the small limiting hole 8 and the large limiting hole 9, and one side of the small limiting hole 8 and the large limiting hole 9 are both opened, so that the connecting rod 4 can enter and exit through the opening, and the connection and separation of the limiting block 3 and the connecting rod 4 can be completed more conveniently.

[0022] Also, see Figure 2-4 As shown, in order to allow the connecting rod 4 to be more conveniently inserted into the interior of the limit block 3, a lower flared guide area 10 and an upper flared guide area 11 located on the upper side of the lower flared guide area 10 are provided on the block body 7, one end of the lower flared guide area 10 is connected to the opening of the small limit hole 8, and the opening size of the lower flared guide area 10 gradually increases from the end close to the small limit hole 8 to the end away from the small limit hole 8, so that the lower flared guide area 10 can be used to make the rod body 13 more convenient to enter the interior of the small limit hole 8, one end of the upper flared guide area 11 is connected to the opening of the large limit hole 9, and the opening size of the upper flared guide area 11 gradually increases from the end close to the large limit hole 9 to the end away from the large limit hole 9, so that the upper flared guide area 11 can be used to make the hanging platform 12 more convenient to enter the interior of the large limit hole 9, thereby more simply completing the clamping of the limit block 3 and the connecting rod 4.

[0023] The working principle of the utility model is as follows: when the mold is installed on the machine, the connecting rod 4 enters from the opening of the limit block 3, the hanging platform 12 of the connecting rod 4 is clamped together with the limit block 3, and then the ejector base plate 2 and the ejector plate 6 are screwed together.

[0024] During injection molding, the limit block 3 is driven to move by the extension and contraction of the ejector rod 5, and the ejector plate 6 is forced to reset by the limit block 3.

[0025] In summary, the technical solution connects the ejector rod 5 and the ejector plate 6 by setting a connecting structure, and can complete the forced resetting of the ejector plate 6 by moving the ejector rod 5, thereby reducing the die pressing problem caused by incomplete resetting of the ejector plate 6 when the return spring 1 fails.

[0026] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A forced reset mechanism, characterized in that: It comprises an ejector rod (5), the upper end of which is mounted with an ejector base plate (2) via a connecting structure, and the upper side of the ejector base plate (2) is fixedly connected with an ejector plate (6); The connection structure comprises a connecting rod (4) fixedly connected to the upper side of the ejector rod (5) and a limiting block (3) fixedly connected to the lower side of the ejector base plate (2), wherein the limiting block (3) and the connecting rod (4) are connected together by means of a clamping connection; The connecting rod (4) comprises a rod body (13) fixedly connected to the upper end of the ejector rod (5); the upper end of the rod body (13) is fixedly connected to a hanging platform (12); the outer diameter of the hanging platform (12) is larger than the inner diameter of the rod body (13); the limiting block (3) comprises a block body (7) fixedly connected to the lower side of the ejector pin base plate (2) by screws; a small limiting hole (8) is provided on the block body (7); the inner diameter of the small limiting hole (8) is larger than the outer diameter of the rod body (13) and smaller than the outer diameter of the hanging platform (12); a large limiting hole (9) is provided on the block body (7) and located on the upper side of the small limiting hole (8); the inner diameter of the large limiting hole (9) is larger than the outer diameter of the hanging platform (12); and one side of the small limiting hole (8) and the large limiting hole (9) are both open.

2. A forced reset mechanism according to claim 1, characterized in that: The axes of the rod body (13) and the hanging platform (12) overlap, and the axes of the small limiting hole (8) and the large limiting hole (9) overlap.

3. A forced reset mechanism according to claim 1, characterized in that: The block (7) is fixedly connected to the lower side of the ejector base plate (2) by means of screws.

4. A forced reset mechanism according to claim 1, characterized in that: The block (7) is provided with a lower flaring guide area (10) and an upper flaring guide area (11) located on the upper side of the lower flaring guide area (10); one end of the lower flaring guide area (10) is connected to the opening of the small limiting hole (8), and the opening size of the lower flaring guide area (10) gradually increases from the end close to the small limiting hole (8) to the end away from the small limiting hole (8); one end of the upper flaring guide area (11) is connected to the opening of the large limiting hole (9), and the opening size of the upper flaring guide area (11) gradually increases from the end close to the large limiting hole (9) to the end away from the large limiting hole (9).

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