A rivet processing and forming device

Abstract

This utility model discloses a rivet processing and forming device, comprising: a base, a support frame fixed at the top edge of the base, a first hydraulic rod fixed to the top of the support frame by bolts, a cover plate fixed to the piston bottom of the first hydraulic rod, a second hydraulic rod fixed to the rear edge of the support frame by bolts, a cutting blade fixed to the piston front end of the second hydraulic rod, a feeding port opened at the top of the base, and mounting blocks fixed at the left and right edges of the feeding port. This device, by setting several sets of through slots on the placement blocks, and coordinating the synchronous fixing of the cover plate and the synchronous cutting action of the cutting blade, can complete the material head cutting process of multiple sets of rivets at one time, significantly shortening the processing time of a single batch of rivets; at the same time, the unloading stage achieves batch unloading by rotating the placement blocks driven by a motor, eliminating the need for individual picking and placing, further reducing process intervals, and meeting the needs of high-efficiency, large-volume production.

Description

Technical Field

[0001] This utility model relates to the field of rivet processing technology, specifically to a rivet processing and forming device. Background Technology

[0002] Rivets, as fasteners that use their own deformation to connect riveted parts, come in many varieties and are widely used in clothing, footwear, hardware, and other fields. After the cold heading and other processing steps of rivets, excess material usually remains at the end, which must be trimmed to ensure smooth and reliable subsequent installation.

[0003] Various forming devices for rivet head removal have been disclosed in the prior art. For example, Chinese Patent No. CN218926384U discloses a forming device for rivet processing. A conveying motor mounted on a fixing component drives a lead screw to rotate, causing the threaded slider to move horizontally. This conveys the clamped rivets, facilitating batch processing. A clamping electric cylinder on a fixing block on the conveying component drives the clamping block to move horizontally. With the cooperation of the fixing block, the rivets placed between the mounting block and the fixing block are clamped and fixed, effectively reducing the possibility of rivet misalignment during processing and improving practicality. However, it still has the following technical problems:

[0004] While it enables batch processing, its work cycle relies on a series of sequential actions—clamping, conveying, cutting, and unloading—for each rivet. Each rivet must wait for the previous rivet to finish cutting and move out of the workstation before it can enter the cutting position, resulting in a long average processing cycle for a single rivet. This intermittent working mode limits further increases in equipment capacity and makes it difficult to meet the actual needs of high-efficiency, high-volume production. Therefore, we propose a rivet processing and forming device. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rivet processing and forming device, comprising: a base, a support frame fixed at the top edge of the base, a first hydraulic rod fixed to the top of the support frame by bolts, a cover plate fixed to the bottom piston of the first hydraulic rod, a second hydraulic rod fixed to the rear edge of the support frame by bolts, a cutting blade fixed to the front piston of the second hydraulic rod, a feeding port opened at the top of the base, mounting blocks fixed at the left and right edges of the feeding port, a rotating shaft rotatably connected to the top end of the mounting block by bearings, a motor fixed to the outside of the right mounting block extending from the right side of the rotating shaft, placement blocks fixed to the facing surfaces of the two sets of rotating shafts, several sets of through grooves evenly opened on the rotating shaft, several sets of arc grooves evenly opened at the bottom end of the cover plate, and a pull-out receiving box and a collection box provided at the bottom of the base.

[0006] In a preferred embodiment of this utility model, the through groove and the arc-shaped groove are positioned correspondingly, and the inner diameter of the through groove matches the rivet rod, while the inner diameter of the arc-shaped groove matches the rivet head.

[0007] In a preferred embodiment of this utility model, the bottom end of the cover plate is opposite to the top end of the placement block, and the cover plate is lowered to fit tightly against the top end of the placement block.

[0008] As a preferred embodiment of this utility model, two sets of first limiting posts are provided through the top edge of the support frame. The bottom end of the first limiting post is fixed to the cover plate, and the first limiting post is slidably connected to the corresponding through hole on the top plate of the support frame.

[0009] As a preferred embodiment of this utility model, a second limiting post is provided through the edges of both sides of the vertical plate of the support frame. The front end of the second limiting post is fixed to the cutting blade, and the second limiting post is slidably connected to the corresponding through hole on the vertical plate of the support frame.

[0010] In a preferred embodiment of this invention, the discharge port is located directly below the placement block, and the width of the discharge port is greater than the width of the placement block.

[0011] In a preferred embodiment of this invention, an inclined filter screen is fixed to the bottom of the receiving box. The mesh size of the filter screen is smaller than that of the rivet but larger than that of the processing waste. The bottom of the collecting box is a flat, enclosed plate, and handles are fixed to the front ends of both the receiving box and the collecting box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) Significantly improve processing efficiency and meet the needs of mass production: This device sets several sets of through slots on the placement block, and with the synchronous fixing of the cover plate and the synchronous cutting action of the cutting blade, it can complete the material head removal process of multiple sets of rivets at one time, significantly shortening the processing time of a single batch of rivets; at the same time, the unloading stage is achieved by the motor driving the placement block to rotate to realize batch unloading, without the need to pick up and put down one by one, further reducing the process interval, and meeting the needs of high-efficiency and large-scale production.

[0014] (2) Ensuring processing accuracy and improving the stability of finished product quality: On the one hand, the first limiting post restricts the movement trajectory of the cover plate, preventing the cover plate from shifting when fixing the rivets and ensuring that the arc groove and the rivet head fit precisely; on the other hand, the second limiting post restricts the movement trajectory of the cutting blade, preventing the cutting blade from skewing during the cutting process and ensuring that the cutting planes of multiple sets of rivet heads are flush. In addition, the size fit between the through groove and the rivet rod, and the size fit between the arc groove and the rivet head, can ensure that the rivet is always in a stable positioning state during processing, effectively avoiding cutting deviations caused by rivet offset, and improving the quality consistency and stability of the finished rivets.

[0015] (3) Achieve automatic material separation and reduce labor costs and resource waste: This device achieves automatic separation of finished rivets and cutting waste through the filter screen set at the bottom of the receiving box. At the same time, the waste can be reused after being collected in the collection box, which reduces the waste of raw materials and conforms to the concept of green production and resource recycling. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the cutting blade of this utility model;

[0019] Figure 3 This is a three-dimensional disassembled schematic diagram of the placement block of this utility model;

[0020] Figure 4 This is a schematic diagram of the left-side structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the left cross-section of the placement block of this utility model.

[0022] In the diagram: 1. Base; 2. First limiting post; 3. Support frame; 4. First hydraulic rod; 5. Cover plate; 6. Second hydraulic rod; 7. Second limiting post; 8. Cutting blade; 9. Mounting block; 10. Rotating shaft; 11. Placement block; 12. Motor; 13. Through groove; 14. Arc groove; 15. Receiving box; 16. Collection box; 17. Filter screen; 18. Discharge port. Detailed Implementation

[0023] 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.

[0024] Example

[0025] Please see Figure 1-5 This utility model provides the following technical solution: a rivet processing and forming device, comprising: a base 1, a support frame 3 fixed at the top edge of the base 1, a first hydraulic rod 4 fixed at the top of the support frame 3 by bolts, a cover plate 5 fixed at the bottom of the piston of the first hydraulic rod 4, a second hydraulic rod 6 fixed at the rear edge of the support frame 3 by bolts, a cutting blade 8 fixed at the front end of the piston of the second hydraulic rod 6, a feeding port 18 opened at the top of the base 1, mounting blocks 9 fixed at the left and right edges of the feeding port 18, a rotating shaft 10 rotatably connected to the top end of the mounting block 9 by bearings, a motor 12 fixed to the outside of the right mounting block 9 on the right side of the right rotating shaft 10, a placement block 11 fixed on the facing side of the two sets of rotating shafts 10, a number of through grooves 13 evenly opened on the rotating shaft 10, a number of arc grooves 14 evenly opened at the bottom end of the cover plate 5, and a pull-out receiving box 15 and a collection box 16 provided at the bottom end of the base 1.

[0026] To ensure precise positioning of the rivet on the placement block 11, and to achieve initial positioning and subsequent support for the rivet by matching the dimensions of the through groove 13 with the rivet rod and the arc groove 14 with the rivet head, thus preventing lateral displacement or shaking of the rivet during processing and providing a stable positioning foundation for subsequent cutting processes, in this embodiment, as a preferred technical solution of the present invention, the through groove 13 and the arc groove 14 are positioned correspondingly, and the inner diameter of the through groove 13 matches the rivet rod, and the inner diameter of the arc groove 14 matches the rivet head.

[0027] In order to form a tight clamping structure with the placement block 11 after the cover plate 5 is lowered, the rivets in the through groove 13 are firmly fixed by the contact action between the cover plate 5 and the placement block 11, so as to prevent the rivets from being longitudinally displaced due to force during the cutting process and to ensure the accuracy of the cutting position, in this embodiment, as a preferred technical solution of the present invention, the bottom end of the cover plate 5 is opposite to the top end of the placement block 11, and the cover plate 5 is tightly attached to the top end of the placement block 11 after it is lowered.

[0028] In order to limit the movement trajectory of the cover plate 5 and prevent the cover plate 5 from horizontally shifting or swaying during the up-and-down movement of the piston end of the first hydraulic rod 4, and to ensure that the arc groove 14 at the bottom of the cover plate 5 always accurately corresponds to the position of the through groove 13 on the placement block 11, thereby ensuring the stability and reliability of the rivet fixing and improving the structural stability of the cover plate 5 during the movement, in this embodiment, as a preferred technical solution of the present invention, two sets of first limiting posts 2 are passed through the top edge of the support frame 3. The bottom end of the first limiting post 2 is fixed to the cover plate 5, and the first limiting post 2 is slidably connected to the corresponding through hole on the top plate of the support frame 3.

[0029] In order to constrain the movement path of the cutting blade 8 and ensure that the cutting blade 8 moves along a straight trajectory when it moves back and forth with the piston end of the second hydraulic rod 6, so as to avoid the cutting blade 8 from being offset and causing the cutting plane of multiple sets of rivet heads to be inconsistent, and to ensure cutting accuracy, in this embodiment, as a preferred technical solution of the present invention, a second limiting post 7 is provided through the edges of both sides of the vertical plate of the support frame 3. The front end of the second limiting post 7 is fixed to the cutting blade 8, and the second limiting post 7 is slidably connected to the corresponding through hole on the vertical plate of the support frame 3.

[0030] To ensure that the waste generated during cutting and the rivets that fall off after processing can fall completely into the receiving box 15 below through the discharge port 18, and to prevent the waste or rivets from scattering on the top of the base 1 due to insufficient coverage of the discharge port 18, thereby reducing the amount of cleaning work and ensuring the integrity of material collection, in this embodiment, as a preferred technical solution of the present invention, the discharge port 18 is located directly below the placement block 11, and the width of the discharge port 18 is greater than the width of the placement block 11.

[0031] To achieve automatic separation of finished rivets and cutting waste, the mesh size of the filter screen 17 is designed so that waste can pass through the mesh and fall into the collection box 16 for centralized recycling. Rivets, unable to pass through the mesh, roll down the inclined surface of the filter screen 17 to the front of the receiving box 15 for easy collection. The pull-out structure and handle design improve the convenience of material cleaning. In this embodiment, as a preferred technical solution of this utility model, the bottom of the receiving box 15 is fixed with an inclined filter screen 17. The mesh size of the filter screen 17 is smaller than the size of the rivets but larger than the size of the processing waste. The bottom of the collection box 16 is a flat, closed type, and handles are fixed to the front of both the receiving box 15 and the collection box 16.

[0032] In summary, with the help of the above-described technical solution of this utility model,

[0033] Working principle: First, the operator places multiple sets of rivets to be cut into the slots 13 at the top of the placement block 11, one by one, with the rivet shank facing down and the rivet head facing up. Because the inner diameter of the slots 13 matches the size of the rivet shank, the rivets are initially positioned within the slots, preventing lateral displacement. Then, the first hydraulic rod 4 fixed at the top of the support frame 3 is activated, its piston end extending downwards, simultaneously moving the cover plate 5 fixed at the bottom vertically downwards. During this process, the two sets of first limiting posts 2 penetrating the top plate of the support frame 3 are fixedly connected to the cover plate 5, restricting the movement trajectory of the cover plate 5 and preventing horizontal swaying. When the bottom end of the cover plate 5 is completely pressed against the top end of the placement block 11, the first hydraulic rod 4 stops moving. At this time, the arc-shaped groove 14 opened at the bottom end of the cover plate 5 is just in contact with the head of the rivet in the through groove 13. Through the clamping action of the cover plate 5 and the placement block 11, multiple sets of rivets are firmly fixed, providing stable conditions for the subsequent cutting process.

[0034] After the rivets are fixed, the second hydraulic rod 6 fixed at the rear end of the support frame 3 is activated, and its piston end extends forward, driving the cutting blade 8 fixed at the front end to move horizontally. The two sets of second limiting posts 7 that pass through the vertical plate of the support frame 3 are fixedly connected to the cutting blade 8, which can ensure that the cutting blade 8 moves along a straight trajectory and ensures cutting accuracy. When the cutting blade 8 moves to contact the bottom end of the rivet rod in the through groove 13, the excess material of multiple rivets is cut simultaneously. The waste generated by cutting falls downward through the discharge port 18 opened at the top of the base 1 under the action of gravity, and finally falls into the receiving box 15 set at the bottom of the base 1.

[0035] After cutting, the second hydraulic rod 6 controls the piston end to retract, driving the cutting blade 8 to return to its initial position. Simultaneously, the first hydraulic rod 4 controls the piston end to retract upward, driving the cover plate 5 to move upward and disengage from the placement block 11, releasing the clamping and fixing of the rivet. Subsequently, the motor 12 fixed to the outside of the right mounting block 9 is started. The output shaft of the motor 12 drives the right rotating shaft 10 fixed thereto to rotate, synchronously driving the placement block 11 and the left rotating shaft 10 to rotate along the central axis of the rotating shaft 10. When the placement block 11 rotates to half a revolution, i.e. the opening of the through groove 13 faces downward, the motor 12 stops working. At this time, the rivet head in the through groove 13 faces downward, and the rivet, no longer restrained, falls from the through groove 13 under the action of gravity, falling into the receiving box 15 through the discharge port 18.

[0036] A sloping filter screen 17 is fixed to the bottom of the receiving box 15. The mesh size of the filter screen 17 is smaller than the outer diameter of the rivet but larger than the particle size of the cutting waste. Rivets falling into the receiving box 15 cannot pass through the mesh of the filter screen 17 and automatically roll to the front of the receiving box 15 due to the sloping surface of the filter screen 17, making it easy for operators to collect them. Cutting waste that fell into the receiving box 15 can pass through the mesh of the filter screen 17 and fall into the collection box 16 below the receiving box 15. After the batch is completed, the operator can pull the receiving box 15 and the collection box 16 out from the bottom of the base 1 using the handles fixed to the front of the receiving box 15 and the collection box 16 for further processing of the finished rivets and waste. The motor model mentioned above is 51K60RGU-CMF (this motor is a geared motor with electromagnetic self-locking function). The above motor model is for reference only and should meet the working requirements.

[0037] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rivet processing and forming device, characterized in that, include: A base (1) is provided, with a support frame (3) fixed at the top edge of the base (1). A first hydraulic rod (4) is fixed to the top of the support frame (3) by bolts. A cover plate (5) is fixed to the bottom of the piston of the first hydraulic rod (4). A second hydraulic rod (6) is fixed to the rear edge of the support frame (3) by bolts. A cutting blade (8) is fixed to the front end of the piston of the second hydraulic rod (6). A discharge port (18) is provided at the top of the base (1). Mounting devices are fixed to the left and right edges of the discharge port (18). The top end of the mounting block (9) is rotatably connected to a rotating shaft (10) via a bearing. The rotating shaft (10) on the right extends to the outside of the mounting block (9) on the right and is fixed with a motor (12). The two sets of rotating shafts (10) are fixed with a placement block (11) on their facing sides. Several sets of through grooves (13) are evenly opened on the rotating shaft (10). Several sets of arc grooves (14) are evenly opened at the bottom end of the cover plate (5). A pull-out receiving box (15) and a collection box (16) are provided at the bottom end of the base (1).

2. The rivet processing and forming device according to claim 1, characterized in that: The through groove (13) corresponds to the arc groove (14) in position, and the inner diameter of the through groove (13) matches the rivet rod, and the inner diameter of the arc groove (14) matches the rivet head.

3. The rivet processing and forming device according to claim 1, characterized in that: The bottom end of the cover plate (5) is opposite to the top end of the placement block (11), and the cover plate (5) is pressed tightly against the top end of the placement block (11) after it is lowered.

4. The rivet processing and forming device according to claim 1, characterized in that: Two sets of first limiting posts (2) are inserted through the top edge of the support frame (3). The bottom end of the first limiting post (2) is fixed to the cover plate (5), and the first limiting post (2) is slidably connected to the corresponding through hole on the top plate of the support frame (3).

5. The rivet processing and forming device according to claim 1, characterized in that: The support frame (3) has a second limiting post (7) penetrating through both sides of the vertical plate. The front end of the second limiting post (7) is fixed to the cutting blade (8), and the second limiting post (7) is slidably connected to the corresponding through hole on the vertical plate of the support frame (3).

6. The rivet processing and forming device according to claim 1, characterized in that: The discharge port (18) is located directly below the placement block (11), and the width of the discharge port (18) is greater than the width of the placement block (11).

7. The rivet processing and forming device according to claim 1, characterized in that: The bottom of the receiving box (15) is fixed with an inclined filter screen (17). The mesh size of the filter screen (17) is smaller than the size of the rivet and larger than the size of the processing waste. The bottom of the collection box (16) is a flat closed type. The front ends of the receiving box (15) and the collection box (16) are fixed with handles.

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