Movable main mold stripping mechanism

Abstract

The utility model discloses a movable main mould stripping mechanism, including the movable rod of clearance fit assembly in the cold header body, the spring seat ring of one end of movable rod is provided with the restriction compression spring activity, the other end of movable rod is provided with the front fixed plate, and the stripping plate of the main mould mouth is assembled to the front fixed plate, the first step cavity of accommodating spring seat ring movement is provided in the cold header body, the second step cavity of accommodating front fixed plate movement is provided in the cold header body, and the third step cavity of accommodating compression spring movement is provided in the cold header body, and the whole movable main mould stripping mechanism is installed on the clamp moving mechanism of cold header, and power is provided by it. Through increasing movable main mould stripping mechanism on the clamp moving mechanism of cold header, the stripping plate can have back and forth action to the main mould mouth, and for the product that can not fall off naturally because of burr and the like, can push off from the main mould mouth, prevent being stuck.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology of cold heading forming machines, and in particular to a movable main mold ejection mechanism. Background Technology

[0002] A cold heading machine is a device that cuts and cold-extrudes various processed metal wires, shaping them into their current form within a die. It is used to process various standard and non-standard fasteners. All cold heading machines are equipped with a clamping mechanism, which is part of the machine's clamping system used to transfer workpieces. When a workpiece is transferred from one station to the next, the clamps can open and close and rotate 180°, accurately transferring the workpiece from one station to the next, completing processes such as workpiece turning.

[0003] In actual production, some pre-formed products cannot fall off naturally when ejected from the main mold due to burrs or other reasons. An auxiliary mechanism is needed to help them fall off the main mold and prevent the pre-formed products from being stuck at the main mold opening. Utility Model Content

[0004] The purpose of this invention is to provide a movable main mold ejection mechanism to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a movable main mold stripping mechanism, characterized in that: it includes a movable rod fitted with a clearance fit inside the body of a cold heading machine; one end of the movable rod is provided with a spring seat ring that restricts the movement of a compression spring; the other end of the movable rod is provided with a front fixing plate; a stripping plate that faces the main mold opening is mounted on the front fixing plate; the body of the cold heading machine is provided with a first stepped cavity for accommodating the movement of the spring seat ring, a second stepped cavity for accommodating the movement of the front fixing plate, and a third stepped cavity for accommodating the movement of the compression spring; the entire movable main mold stripping mechanism is mounted on the clamp moving mechanism of the cold heading machine and is powered by it.

[0006] Compared with the prior art, the advantages of this utility model are: by adding a movable main mold stripping mechanism to the clamp moving mechanism of the cold heading machine, the stripping plate can move back and forth at the main mold opening. For the formed products that cannot fall off naturally due to burrs or other reasons, they can be pushed off the main mold opening to prevent them from being stuck.

[0007] As an improvement of this utility model, a circular top block is provided on the end face of the spring seat. The purpose of this design is that, because the contact surface of the circular top block is circular, the synchronous following performance is better when the clamp moving mechanism moves and touches it.

[0008] As an improvement to this utility model, the front fixing plate and the second stepped cavity are fitted with a clearance fit. The purpose of this design is that the clearance fit provides better sealing, preventing metal residues, dust, and other impurities from entering the moving gap and extending service life.

[0009] As an improvement to this utility model, the spring seat and the first stepped cavity are fitted with a clearance fit. The purpose of this design is that the clearance fit provides better sealing, preventing metal residues, dust, and other impurities from entering the moving gap and extending service life.

[0010] As an improvement to this utility model, the stripping plate is bolted to the front fixing plate. The purpose of this design is to make the assembly and disassembly of the adhesive plate simple and convenient. Attached Figure Description

[0011] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0012] In the attached diagram:

[0013] Figure 1 This is a plan view of the movable main mold ejection mechanism described in this utility model.

[0014] Figure 2 This is a schematic diagram showing the position of the movable main mold stripping mechanism described in this utility model in a cold heading machine.

[0015] Explanation of reference numerals in the attached drawings: 1. Cold heading machine body; 2. Movable rod; 3. Compression spring; 4. Spring seat ring; 5. Front fixed plate; 6. Main die opening; 7. Stripper plate; 8. First stepped cavity; 9. Second stepped cavity; 10. Third stepped cavity; 11. Clamp moving mechanism; 12. Bolt; 13. Circular top block; 14. Swing arm; 15. Cam; 16. Clamp module. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example 1

[0018] Please refer to Figure 1 -2.

[0019] This embodiment provides a movable main mold stripping mechanism, including a movable rod 2 that is fitted with a clearance fit inside the cold heading machine body 1. One end of the movable rod 2 is provided with a spring seat 4 that restricts the movement of the compression spring 3, and the other end of the movable rod 2 is provided with a front fixing plate 5. A stripping plate 7 that opposes the main mold opening 6 of the clamping module 16 is mounted on the front fixing plate 5.

[0020] Furthermore, the cold heading machine body 1 is provided with a first stepped cavity 8 for accommodating the movement of the spring seat ring 4, a second stepped cavity 9 for accommodating the movement of the front fixed plate 5, and a third stepped cavity 10 for accommodating the movement of the compression spring 3.

[0021] It should be noted that the entire movable main die stripping mechanism is mounted on the clamp moving mechanism 11 of the cold heading machine, which provides the power. In the prior art, because the die and main die of the bolt forming machine (a type of cold heading machine) are in a closed state during product forming, a fixed stripping plate 7 cannot be installed in the middle (fixed ones would cause interference). Therefore, a movable stripping plate 7 structure must be installed to avoid interference. However, the movable stripping plate 7 requires a separate cam mechanism for power control, which is complex, and small cold heading machines do not have space for cam installation. This new mechanism uses the clamp moving mechanism 11 (standard equipment on every cold heading machine), which drives the swing arm 14 to move back and forth via the cam 15. The structure is simple, the mechanism is stable and reliable, and it can be completed with slight modifications to the cold heading machine body 1 and the installation of the movable rod 2.

[0022] Please see Figure 1 A circular top block 13 is provided on the end face of the spring seat 4. Because the contact surface of the circular top block 13 is circular, it has good synchronous following performance when the clamp moving mechanism 11 moves and touches it.

[0023] Furthermore, the front fixing plate 5 and the second stepped cavity 9 are fitted with a clearance fit. Because the clearance fit provides better sealing, it prevents metal shavings, dust, and other impurities from entering the moving gap, thus extending the service life.

[0024] Furthermore, the spring seat 4 and the first stepped cavity 8 are fitted with a clearance fit. This clearance fit provides good sealing, preventing metal shavings, dust, and other impurities from entering the moving gap and extending service life.

[0025] Furthermore, the stripping plate 7 is mounted on the front fixing plate 5 by bolts 12. This structure makes it simple and convenient to assemble and disassemble the rubber plate.

[0026] The beneficial effects of this utility model are as follows: By adding a movable main mold ejection mechanism to the clamp moving mechanism 11 of the cold heading machine, the ejector plate 7 can move back and forth across the main mold opening 6. For pre-formed products that cannot fall off naturally due to burrs or other reasons, they can be pushed off the main mold opening 6 to prevent them from getting stuck. This new mechanism uses the clamp moving mechanism 11 (which is standard equipment on every cold heading machine) as the driving force. It can be completed with slight modifications to the cold heading machine body 1 and the installation of the movable rod 2. The structure is simple and the mechanism is stable and reliable.

[0027] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A movable main mold ejection mechanism, characterized in that: The assembly includes a movable rod (2) fitted with clearance within the cold heading machine body (1). One end of the movable rod (2) is provided with a spring seat (4) that restricts the movement of the compression spring (3). The other end of the movable rod (2) is provided with a front fixing plate (5). A stripper plate (7) that faces the main die opening (6) is mounted on the front fixing plate (5). The cold heading machine body (1) has a first stepped cavity (8) for accommodating the movement of the spring seat (4), a second stepped cavity (9) for accommodating the movement of the front fixing plate (5), and a third stepped cavity (10) for accommodating the movement of the compression spring (3). The entire movable main die stripper mechanism is mounted on the clamp moving mechanism (11) of the cold heading machine and is powered by it.

2. The movable main mold ejection mechanism according to claim 1, characterized in that: A circular top block (13) is provided on the end face of the spring seat (4).

3. The movable main mold ejection mechanism according to claim 1, characterized in that: The front fixing plate (5) and the second stepped cavity (9) are fitted with a clearance between them.

4. The movable main mold ejection mechanism according to claim 1, characterized in that: The spring seat (4) and the first stepped cavity (8) are fitted with a clearance.

5. The movable main mold ejection mechanism according to claim 1, characterized in that: The stripping plate (7) is mounted on the front fixing plate (5) by bolts (12).

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