Mechanism for quickly adjusting rear pass-out stroke of cold header

Abstract

The utility model relates to a mechanism for quickly adjusting a rear-through stroke of a cold header, which is mounted on a machine body of the cold header and comprises a rear-through main rod matched with a piston hole in the machine body in a shaft hole manner, the other end of the rear-through main rod is sleeved with a rear-through sleeve, and a plugging opening communicated with the piston hole is arranged on the machine body. A U-shaped cushion block is movably connected to the rear through main rod in a sleeved mode, and the inner diameter of the plugging opening is larger than the inner diameter of an outer ring of the U-shaped cushion block. When the cold heading machine needs to produce products with different lengths, the plugging piece can be taken down firstly, the U-shaped cushion block is inserted into the round rod of the rear through main rod, the stroke of the rear through main rod can be shortened when the rear through main rod moves (the shortened stroke is the thickness of the U-shaped cushion block), a plurality of U-shaped cushion blocks with different thicknesses can be prepared according to the length of the U-shaped cushion block according to different product workpieces, and the length of the U-shaped cushion block can be adjusted according to different product workpieces. According to the novel structure, when a product is replaced, the working efficiency is improved, and when the rear-through main rod is inserted into the piston hole, the rear-through main rod can be straightened through the plugging opening and can be easily inserted into the rear-through sleeve.

Description

Technical Field

[0001] This utility model relates to the field of cold heading machine manufacturing technology, and in particular to a cold heading machine quick adjustment and outgoing stroke mechanism. Background Technology

[0002] A cold heading machine is a device that cuts and cold-extrudes various processed metal wires, causing them to be cold-headed into shape within a die. It is used to process various standard and non-standard fasteners and automotive / motorcycle parts, and its applications are becoming increasingly widespread. The rear-exit mechanism of the cold heading machine is used to expel the workpiece from the die during the cold heading process.

[0003] The existing cold heading machine's rear-exit stroke mechanism includes a rear-exit main rod and a rear-exit sleeve. When producing workpieces of different lengths, the stroke distance of the rear-exit main rod needs to be changed by adjusting the position of the rear-exit sleeve to meet the rear-exit requirements of workpieces of different lengths. The adjustment of the rear-exit sleeve is mainly achieved by rotating it to move it back and forth, thereby adjusting the rear-exit stroke. If the lengths of the two workpieces differ significantly, the adjustment stroke will also be large, which is time-consuming and labor-intensive. Moreover, it is not easy for the rear-exit main rod to be inserted into the rear-exit sleeve. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-adjustment outgoing stroke mechanism for a cold heading machine 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 quick adjustment and outgoing stroke mechanism for a cold heading machine, installed on the body of the cold heading machine, characterized in that: it includes a rear-through main rod that mates with a piston hole in the body of the machine, a rear-through sleeve is sleeved at the other end of the rear-through main rod, a sealing port communicating with the piston hole is provided on the body, the sealing port is normally sealed with a sealing element, and a U-shaped pad is movably sleeved on the rear-through main rod, the inner diameter of the sealing port being larger than the outer ring of the U-shaped pad.

[0006] Compared with the prior art, the advantages of this utility model are as follows: When the cold heading machine needs to produce products of different lengths, the sealing part can be removed first, and a U-shaped pad can be inserted into the round rod of the rear main rod, so that the stroke of the rear main rod can be shortened when it moves (the shortened stroke is equal to the thickness of the U-shaped pad). The length of the U-shaped pad can be adjusted according to the different products. Multiple U-shaped pads of different thicknesses can be prepared. This new structure improves work efficiency when changing products. Moreover, when the rear main rod is inserted into the piston hole, it can be straightened by the sealing port, making it easier to insert the rear sleeve.

[0007] As an improvement of this utility model, the outer ring of the rear through sleeve is connected to a sleeve connecting block via a threaded connection. The purpose of this design is to allow the rear through sleeve to be rotatably connected to the machine body via the sleeve connecting block.

[0008] As an improvement of this utility model, the U-shaped pad and the piston hole are fitted with a clearance fit. The purpose of this design is to allow the U-shaped pad to slide relatively freely within the piston hole.

[0009] As an improvement to this invention, the U-shaped pad and the rear through main rod are fitted with a clearance fit. The purpose of this design is to allow the U-shaped pad to slide relatively freely on the outer ring of the rear through main rod.

[0010] As an improvement of this utility model, the U-shaped pad is provided with rounded corners. The purpose of this design is to allow the U-shaped pad to slide more freely within the piston hole.

[0011] As an improvement of this utility model, the sealing component is provided with an arc-shaped guide portion. The purpose of this design is that when the rear main rod moves, if it vibrates slightly up and down, the arc-shaped guide portion can gently press it down, thus playing a corrective role. Attached Figure Description

[0012] 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.

[0013] In the attached diagram:

[0014] Figure 1 This is a cross-sectional schematic diagram of the rear-exit stroke mechanism described in this utility model.

[0015] Figure 2 This is a perspective view of the U-shaped pad described in this utility model.

[0016] Figure 3 This is a perspective view of the sealing component described in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Body; 2. Piston hole; 3. Rear through main rod; 4. Rear through sleeve; 5. Sealing port; 6. Sealing component; 7. U-shaped pad; 8. Sleeve connecting block; 9. Rounded corner; 10. Arc-shaped guide part; 11. Sleeve fixing block; 12. U-shaped opening; 14. Cover; 15. Mounting hole. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] Please refer to Figure 1 -3.

[0021] This embodiment provides a quick adjustment and outgoing stroke mechanism for a cold heading machine, which is installed on the machine body 1 of the cold heading machine. It includes a rear-through main rod 3 that is axially engaged with a piston hole 2 in the machine body 1 (the product workpiece is passed out by the movement of the rear-through main rod 3). The other end of the rear-through main rod 3 is sleeved with a rear-through sleeve 4. A sealing port 5 communicating with the piston hole 2 is provided on the machine body 1. The sealing port 5 is normally sealed with a sealing element 6.

[0022] A U-shaped pad 7 is movably fitted onto the rear main rod 3. The inner diameter of the sealing port 5 is larger than the outer ring of the U-shaped pad 7, which facilitates the insertion of the U-shaped pad 7 through the sealing port 5. Then, the U-shaped opening 12 of the U-shaped pad 7 is inserted into the rear main rod 3 inside the piston hole 2.

[0023] In an embodiment of this utility model application, the outer ring of the rear through sleeve 4 is connected to a sleeve connecting block 8 via a threaded connection, allowing the rear through sleeve 4 to be rotatably connected to the machine body 1 via the sleeve connecting block 8. A sleeve fixing block 11 is provided at the end of the rear through sleeve 4.

[0024] In the embodiments of this utility model application, the U-shaped pad 7 and the piston hole 2 are fitted with a clearance fit, allowing the U-shaped pad 7 to slide relatively freely within the piston hole 2.

[0025] In the embodiments of this utility model application, the U-shaped pad 7 and the rear through main rod 3 are fitted with a clearance fit. This allows the U-shaped pad 7 to slide relatively freely on the outer ring of the rear through main rod 3.

[0026] In the embodiments of this utility model application, please refer to Figure 2 The U-shaped pad 7 is provided with rounded corners 9. This allows the U-shaped pad 7 to have a certain guiding effect within the piston hole 2, enabling it to slide relatively freely.

[0027] In the embodiments of this utility model application, please refer to Figure 3 The sealing component 6 includes a cover 14 and a mounting hole 15, and the sealing component 6 is also provided with an arc-shaped guide part 10. When the rear main rod 3 moves, if it shakes up and down a little, the arc-shaped guide part 10 can gently press it down and play a corrective role.

[0028] This embodiment provides a quick adjustment mechanism for the rear passage stroke of a cold heading machine. When the cold heading machine needs to produce products of different lengths, the sealing piece 6 can be removed first, and a U-shaped pad 7 can be inserted from the sealing opening 5 onto the round rod of the rear passage main rod 3. This allows the rear passage main rod 3 to shorten its stroke during movement (the shortened stroke is equal to the thickness of the U-shaped pad 7, see...). Figure 1 The adjusted stroke differs from the original stroke by the thickness of one pad block. The length of the U-shaped pad block 7 can be adjusted according to the different product workpieces, and multiple U-shaped pad blocks 7 with different thicknesses can be prepared.

[0029] The traditional approach is as follows: when producing workpieces of different lengths, the stroke distance of the rear main rod 3 needs to be changed by adjusting the position of the rear sleeve 4 to meet the rear passage requirements of workpieces of different lengths. The adjustment of the rear sleeve 4 is mainly achieved by rotating it to move it back and forth, thereby adjusting the rear passage stroke. If the lengths of the two workpieces differ significantly, the adjustment stroke will also be larger, which is time-consuming and labor-intensive.

[0030] Compared with the traditional method, this new structure improves work efficiency when changing products, and when the rear through main rod 3 is inserted into the piston hole 2, it can be straightened by the sealing port 5, making it easier to insert the rear through sleeve 4.

[0031] 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.

[0032] 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.

[0033] 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 quick-adjustment and outgoing stroke mechanism for a cold heading machine, installed on the machine body (1) of the cold heading machine, characterized in that: The rear through main rod (3) is axially engaged with the piston hole (2) inside the body (1). The other end of the rear through main rod (3) is sleeved with a rear through sleeve (4). A sealing port (5) communicating with the piston hole (2) is provided on the body (1). The sealing port (5) is normally sealed with a sealing member (6). A U-shaped pad (7) is movably sleeved on the rear through main rod (3). The inner diameter of the sealing port (5) is larger than the outer ring of the U-shaped pad (7).

2. The cold heading machine rapid adjustment and subsequent outgoing stroke mechanism according to claim 1, characterized in that: The outer ring of the rear sleeve (4) is connected to the sleeve connecting block (8) by means of threaded connection.

3. The cold heading machine rapid adjustment and subsequent outgoing stroke mechanism according to claim 1, characterized in that: The U-shaped pad (7) and the piston hole (2) are fitted with a clearance fit.

4. The cold heading machine rapid adjustment and subsequent outgoing stroke mechanism according to claim 1, characterized in that: The U-shaped pad (7) and the rear through main rod (3) are fitted with a clearance between them.

5. The rapid adjustment and subsequent outgoing stroke mechanism of the cold heading machine according to claim 1, characterized in that: The U-shaped pad (7) is provided with rounded corners (9).

6. The cold heading machine rapid adjustment and subsequent outgoing stroke mechanism according to claim 1, characterized in that: The sealing component (6) is provided with an arc-shaped guide part (10).

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