A type of arc bolt stamping machine

By introducing a material discharge control mechanism into the arc bolt stamping machine, the impact force of the material discharge is absorbed by a buffer spring and the bolt is automatically flipped to release it, which solves the problems of bolt thread damage and collection box deformation, and realizes continuous production of replacing collection boxes without stopping the machine.

CN224574543UActive Publication Date: 2026-07-31JIANGSU ZHONGCHENG FASTENING TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHONGCHENG FASTENING TECH DEV
Filing Date
2025-08-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional arc bolt punching machines suffer from bolt thread damage and collection box deformation due to height differences during the blanking process, and require frequent shutdowns for box replacement, which affects production efficiency.

Method used

Design an arc bolt punching machine with a material dropping control mechanism, including a first side baffle, a second side baffle and a buffer spring. The buffer spring absorbs the impact force of the material dropping, and the side baffle automatically flips to release the bolt when it reaches a set threshold, so as to replace the collection box without stopping the machine.

Benefits of technology

It effectively protects the quality of bolt threads, avoids damage to the collection box, ensures continuous production, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an arc bolt stamping machine, belonging to the field of stamping machine technology. It includes an arc bolt stamping machine body, with a receiving platform fixed to one side. A material dropping control mechanism is provided on the upper part of the receiving platform. The material dropping control mechanism includes a first side baffle, a second side baffle, and a buffer spring. Both the first and second side baffles are rotatably connected to the inner wall of the receiving platform, and the first and second side baffles are symmetrically arranged. Through the material dropping control mechanism, the first and second side baffles, via the buffer spring at the bottom of the support plate and the anti-wear rubber blocks on the surface, absorb most of the impact force when the arc bolt is dropped, avoiding thread damage and surface bumps caused by excessive height (increased impact force) when the bolt falls directly from the inclined guide frame to the collection box. This ensures the precision and quality of the finished bolt.
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Description

Technical Field

[0001] This utility model relates to the field of stamping machine technology, specifically to an arc bolt stamping machine. Background Technology

[0002] In fields such as machinery manufacturing, construction engineering, and automotive parts, curved bolts are widely used as a special type of fastener because they can adapt to the connection requirements of curved contact surfaces. The production of curved bolts typically involves key processes such as raw material cutting and stamping, with the stamping process relying on a curved bolt stamping machine.

[0003] In traditional material collection methods, the stamped arc bolts are usually dropped directly into the collection box via an inclined guide or slide. Due to the high drop height, the bolts experience a significant impact force due to gravity during the fall, directly impacting the collection box and the surface of the collected bolts. This strong impact can easily damage the bolt threads and deform the collection box. Furthermore, when the bolts accumulate to a certain amount in the collection box, the machine must be stopped and the box replaced with an empty one; otherwise, bolt overflow will occur. This method of stopping the machine to replace the box interrupts the continuous production process of the stamping machine, significantly reducing the effective operating time of the equipment and the overall production efficiency. Therefore, an arc bolt stamping machine is needed to solve the problems existing in the current technology. Summary of the Invention

[0004] The purpose of this invention is to provide an arc bolt stamping machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an arc bolt stamping machine, comprising an arc bolt stamping machine body, a receiving platform fixed on one side of the arc bolt stamping machine body, and a material dropping control mechanism provided on the upper part of the receiving platform. The material dropping control mechanism includes a first side baffle, a second side baffle, and a buffer spring. The first side baffle and the second side baffle are rotatably connected to the inner wall of the receiving platform. The first side baffle and the second side baffle are symmetrically arranged, and a buffer spring is provided between the first side baffle and the second side baffle and the corresponding inner side wall.

[0006] Preferably, both the first side baffle and the second side baffle include a support plate, which is rotatably connected to the upper port of the receiving platform.

[0007] Preferably, both ends of the pallet are fixed with rotating shafts, which are rotatably connected to the rotating grooves in the inner wall of the receiving platform.

[0008] Preferably, the upper end face of the tray is fixed with an anti-wear rubber block, and a gap is provided between two opposite trays.

[0009] Preferably, one end of the buffer spring is fixed to the inner wall of the receiving platform, and the other end of the buffer spring is fixed to the bottom of the tray.

[0010] Preferably, an inclined guide is fixed to the edge of the worktable of the arc bolt stamping machine body, the lower end of the inclined guide is positioned above the material feeding control mechanism, and a collection box is placed inside the receiving platform below the material feeding control mechanism.

[0011] This utility model provides an arc bolt stamping machine, which has the following advantages compared with the prior art:

[0012] Through the set material dropping control mechanism, the first and second side baffles in the material dropping control mechanism absorb most of the impact force when the arc bolts are dropped by means of the buffer spring at the bottom of the support plate and the anti-wear rubber block on the surface. This avoids problems such as thread damage and surface bumps caused by the bolts falling directly from the inclined guide frame to the collection box due to excessive height (causing increased impact force), thus ensuring the accuracy and quality of the finished bolts.

[0013] The first and second side baffles temporarily store a small number of bolts using the support of buffer springs. When the load reaches the set threshold, they automatically flip inward to open the material discharge port, realizing an orderly material collection process that automatically releases the material into the collection box. The design of the side baffles temporarily storing bolts provides a buffer time for the replacement of the collection box. The collection box can be emptied and replaced without stopping the machine, ensuring that the press can work continuously and improve production efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional view of the receiving platform structure of this utility model;

[0016] Figure 3 This is a perspective view of the buffer spring structure of this utility model;

[0017] Figure 4 This is a perspective view of the pallet structure of this utility model.

[0018] In the diagram: 1. Arc bolt punching machine; 2. Inclined guide frame; 3. Receiving platform; 4. Collection box; 5. Material dropping control mechanism; 6. First side baffle; 7. Second side baffle; 8. Buffer spring; 9. Support plate; 10. Anti-wear rubber block; 11. Rotating shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides an arc bolt stamping machine, including an arc bolt stamping machine body 1 and an inclined guide 2 fixed to the edge of its worktable. The inclined guide 2 is used to guide the conveying of the stamped arc bolt. When the equipment is running, the automatic feeding mechanism on the arc bolt stamping machine body 1 accurately feeds the metal raw material into the stamping area according to the set length. The axial pressure is applied by the arc punch to press the bolt shank into a preset arc shape, thus completing the stamping process of the bolt.

[0021] It is worth noting that a receiving platform 3 is fixedly installed on one side of the stamping machine as a transfer area for bolts to be dropped. The first side baffle 6 and the second side baffle 7 are supported by the elasticity of multiple sets of buffer springs 8 at the bottom. When the weight of the bolts received reaches the set threshold, the spring force can no longer maintain the horizontal state of the side baffles. The first side baffle 6 and the second side baffle 7 automatically flip inward, opening the dropping port, so that the bolts can smoothly enter the collection box 4 below to complete the collection. In this process, the side baffles receiving a small number of bolts creates a buffer time for the replacement of the collection box 4. The operator can complete the replacement of the collection box without stopping the machine, ensuring that the arc bolt stamping machine body 1 can achieve a high-efficiency operation mode of continuous stamping and continuous material collection.

[0022] It is worth noting that the receiving platform 3 is located below the material dropping control mechanism 5 and contains the collection box 4, which is responsible for the final collection of the finished bolts.

[0023] It is worth noting that the material dropping control mechanism 5 is the core component to ensure the quality of material receiving, and it consists of a first side baffle 6, a second side baffle 7, and a buffer spring 8. The first side baffle 6 and the second side baffle 7 are symmetrically rotatably connected to the inner wall of the receiving platform 3. The two have completely identical structures and both include a support plate 9. The support plate 9 is rotatably connected to the rotating groove in the inner wall of the receiving platform 3 through rotating shafts 11 fixed at both ends, realizing flexible flipping action. When the side baffle is subjected to the impact force generated by the bolt dropping, since the support plate 9 is rotatably connected through the rotating shaft 11 and the bottom has a buffer spring 8 to provide elastic support, together with the anti-wear rubber block 10 on the surface of the support plate, a multi-buffered structure is formed.

[0024] The upper surface of the pallet 9 is fixed with a wear-resistant rubber block 10, which can effectively reduce the wear of bolts when they are dropped. A gap is reserved between the two opposite pallets 9 to provide a channel for subsequent material dropping.

[0025] It is worth noting that the buffer spring 8 is connected between the inner wall of the receiving platform 3 and the bottom of the support plate 9, respectively, to provide elastic support for the side baffle. The buffer spring 8 and the anti-wear rubber block 10 can absorb most of the impact force through elastic deformation, significantly reducing the impact intensity when the bolt falls, and avoiding the impact force problem caused by excessive drop height.

[0026] This solution has the following working process: During use, the metal raw material is fed into the stamping area according to the set length by the automatic feeding mechanism. The axial pressure of the arc-shaped punch presses the bolt shank into the set arc shape. When the automatic feeding mechanism of the arc bolt stamping machine body 1 transports other metal raw materials to the stamping area, it will lift and push the stamped arc bolt along the inclined guide 2 to fall onto the receiving table 3. When the arc bolt falls, the first side baffle 6 and the second side baffle 7 are subjected to the impact force generated by the falling arc bolt. Since the support plate 9 in the first side baffle 6 and the second side baffle 7 is rotatably connected to the inner wall of the receiving table 3, and a buffer spring 8 is provided between the support plate 9 and the inner wall of the receiving table 3, and the surface of the support plate 9 is covered with anti-wear rubber blocks 10, the first side baffle 6 and the second side baffle 7 have elastic buffering performance. When the first side baffle 6 and the second side baffle 7 are subjected to the impact force of the falling arc bolt, the buffer spring 8 and the anti-wear rubber blocks are used to buffer the impact force. 10 can absorb most of the impact force through elastic deformation, and the material drop control mechanism 5 is set above the collection box 4 to receive the finished screw in advance. This can prevent the finished screw from falling directly from the inclined guide 2 into the collection box 4 and causing excessive impact due to excessive drop height. Excessive impact when the collection box 4 receives the finished screw can cause damage to the box body, deformation, or thread damage. Since the first side baffle 6 and the second side baffle 7 are supported by the elastic force of multiple sets of buffer springs 8 at the bottom, when the load reaches a certain threshold, the first side baffle 6 and the second side baffle 7 will automatically flip inward and open the drop port of the screw entering the collection box 4 to complete the material collection. During this process, the first side baffle 6 and the second side baffle 7 can provide a buffer time for the replacement of the collection box 4 by supporting a small number of screws. This makes it convenient for the arc bolt stamping machine body 1 to achieve continuous stamping operation and continuous material collection without stopping the machine.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An arc bolt press comprising an arc bolt press body (1), characterized in that: A receiving platform (3) is fixed on one side of the arc bolt stamping machine body (1). A material dropping control mechanism (5) is provided on the upper part of the receiving platform (3). The material dropping control mechanism (5) includes a first side baffle (6), a second side baffle (7) and a buffer spring (8). The first side baffle (6) and the second side baffle (7) are rotatably connected to the inner wall of the receiving platform (3). The first side baffle (6) and the second side baffle (7) are symmetrically arranged. A buffer spring (8) is provided between the first side baffle (6) and the second side baffle (7) and the corresponding inner side wall.

2. An arc stud punching machine according to claim 1, characterized in that: Both the first side baffle (6) and the second side baffle (7) include a support plate (9), which is rotatably connected to the upper port of the receiving platform (3).

3. An arc stud punching machine according to claim 2, wherein: Both ends of the pallet (9) are fixed with rotating shafts (11), which are rotatably connected to the rotating grooves on the inner wall of the receiving platform (3).

4. An arc stud punching machine according to claim 3, wherein: The upper end face of the tray (9) is fixed with a wear-resistant rubber block (10), and a gap is provided between the two opposite trays (9).

5. An arc stud punching machine according to claim 4, wherein: One end of the buffer spring (8) is fixed to the inner wall of the receiving platform (3), and the other end of the buffer spring (8) is fixed to the bottom of the tray (9).

6. An arc stud punching machine according to claim 1, characterized in that: An inclined guide (2) is fixed to the edge of the worktable of the arc bolt stamping machine body (1). The lower end of the inclined guide (2) is set above the material dropping control mechanism (5). A collection box (4) is placed inside the receiving platform (3) below the material dropping control mechanism (5).