A reciprocating pressure mechanism for plate processing

Abstract

The utility model discloses a reciprocating pressure mechanism for plate processing, through cam drive lifting knife rest carries out reciprocating motion, has realized efficient, stable bending processing to plate. The inlet and the discharge port arranged on the main frame form a continuous transmission channel, facilitate the automatic conveying of the plate, improve the overall operation efficiency. The bending tool is fixed on the lifting knife rest and is located near the discharge port, can be flexibly adjusted according to the processing demand position, ensures that the bending action is accurate and reliable. The overall structure is compact and reasonable, and the operation is stable, which helps to improve the machining precision and consistency, reduces the need for manual intervention, and is suitable for plate forming process in continuous production line.

Description

Technical Field

[0001] This utility model relates to the field of automatic processing equipment technology, and in particular to a reciprocating pressure mechanism for sheet metal processing. Background Technology

[0002] In the field of sheet metal processing, efficient and precise processing equipment is crucial for improving production efficiency and product quality. Traditional sheet metal processing often requires manual or semi-automatic operations such as cutting and bending. These methods are not only inefficient but also struggle to guarantee processing accuracy and consistency. The limitations of traditional equipment are particularly pronounced when handling large batches of sheets with high precision requirements.

[0003] With the rapid development of industrial automation, the market has placed higher demands on the automation level, processing speed, and precision of sheet metal processing equipment. Reciprocating pressure mechanisms, as a common type of sheet metal processing equipment, directly affect processing efficiency and product quality. However, existing reciprocating pressure mechanisms often have some shortcomings in their structural design, such as poor motion smoothness, low transmission efficiency, and inconvenient tool replacement. These problems limit their application in high-precision, high-efficiency sheet metal processing.

[0004] Specifically, the lifting tool post movement of many existing reciprocating pressure mechanisms is not smooth enough, easily generating vibration and impact. This not only affects machining accuracy but may also shorten the service life of the equipment. Furthermore, the transmission systems of some mechanisms are complex in design, resulting in high maintenance costs and a tendency to malfunction during long-term operation. At the same time, the methods for fixing and replacing tools are also cumbersome, increasing operational difficulty and downtime. Clearly, existing technologies require improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a reciprocating pressure mechanism for sheet metal processing, so as to solve one or more problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a reciprocating pressure mechanism for processing sheet metal, comprising: a main frame having a discharge port on its front side and a feed port on its rear side, wherein a channel for sheet metal transfer is formed between the discharge port and the feed port; a cam rotatably mounted on the main frame; a lifting tool holder movably mounted on the front outer wall of the main frame and driven by the cam to perform reciprocating lifting motion; and a bending tool fixed on the lifting tool holder and located above or below the discharge port.

[0007] In one embodiment of the present invention, the bending tool has an inclined cutting edge that faces the discharge port and is intended to first contact the sheet metal during processing.

[0008] In one embodiment of the present invention, a clamping roller mechanism is further included, which is disposed on the transmission channel and adjacent to the discharge port.

[0009] In one embodiment of the present invention, the clamping roller mechanism includes a clamping roller group having a driving roller and a driven roller; and a first driving member, which is connected to the driving roller via a conveyor belt.

[0010] In one embodiment of the present invention, a brake lever, a brake contact, and a brake spring are further included. The brake spring is connected between the brake lever and the brake contact. The brake lever is movably mounted on the main frame. The brake contact abuts against the driven roller of the clamping roller assembly.

[0011] In one embodiment of the present invention, a brake handle is further included, which is hinged to the main frame and its end abuts against the driven roller of the clamping roller assembly.

[0012] In one embodiment of the present invention, a second drive member is further included, which is fixed on the main frame, and the cam is fixed on the output shaft of the second drive member.

[0013] In one embodiment of the present invention, the lifting tool holder includes a top beam and a cross beam arranged parallel to each other, and the cam is clamped between the top beam and the cross beam.

[0014] As described above, the reciprocating pressure mechanism for sheet metal processing of this invention has the following advantages: It achieves an extremely compact integrated layout by directly driving the lifting tool holder via a cam; the high integration of the drive, transmission, and execution components onto the main frame ensures stable and reliable operation, precise action, and rapid response. This design allows sheet metal to be processed during natural transport, eliminating the need for complex intermediate transfers or repositioning, significantly improving the continuity and overall efficiency of the production line. Simultaneously, the mechanism's simple structure and clear motion relationships facilitate adjustment and maintenance according to processing requirements, effectively reducing manufacturing and operating costs, and providing a reliable and economical solution for continuous and efficient sheet metal processing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the reciprocating pressure mechanism for sheet metal processing provided by this utility model; Figure 2 for Figure 1 Enlarged view of detail A in the middle; Figure 3 A cross-sectional view of the reciprocating pressure mechanism for sheet metal processing provided by this utility model; Figure 4 A side view of the reciprocating pressure mechanism for sheet metal processing provided by this utility model.

[0017] Component designation explanation 1. Main frame; 2. Discharge port; 3. Feed port; 4. Cam; 5. Lifting cutter holder; 6. Bending cutter; 7. Cutting edge; 8. Clamping roller mechanism; 9. First drive component; 10. Brake lever; 11. Brake contact; 12. Brake spring; 13. Brake handle; 14. Second drive component; 15. Top beam; 16. Crossbeam. Detailed Implementation

[0018] This utility model provides a reciprocating pressure mechanism for sheet metal processing. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. In the description of this utility model, it should be understood that the terms "up," "down," "left," and "right," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; they should not be construed as limitations on this utility model. Furthermore, the terms "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please see Figures 1 to 4 This utility model provides a reciprocating pressure mechanism for sheet metal processing, comprising: a main frame 1, with a discharge port 2 on its front side and a feed port 3 on its rear side, forming a channel for sheet metal transfer between the discharge port 2 and the feed port 3; a cam 4 rotatably mounted on the main frame 1; a lifting tool holder 5 movably mounted on the front outer wall of the main frame 1 and driven by the cam 4 to perform reciprocating lifting motion; and a bending tool 6 fixed on the lifting tool holder 5 and located above or below the discharge port 2.

[0020] The lifting tool holder 5, as a frame structure, mainly consists of a top beam 15 and a cross beam 16 arranged parallel to each other, and a column connecting the two. A gap slightly larger than the thickness of the cam 4 is maintained between the top beam 15 and the cross beam 16. During installation, the cam 4 is embedded in this gap, with its rim contacting both the lower surface of the top beam 15 and the upper surface of the cross beam 16. When the cam 4 rotates, its lifting and return sections push the top beam 15 and the cross beam 16 respectively, thereby driving the entire tool holder frame to perform a rigid, sway-free vertical lifting motion. This enclosed design enhances the stability of force transmission and the overall rigidity of the tool holder.

[0021] In practical implementation, the cutting edge 7 of the bending cutter 6 is not parallel to the surface of the sheet metal, but is designed as an inclined surface with a certain angle. This inclined angle can be set and manufactured according to the required bending angle. During installation, ensure that the inclined cutting edge 7 is facing the discharge port 2. When the lifting cutter holder 5 drives the cutter to move, the inclined cutting edge 7 will first cut into the edge of the sheet metal in a line contact manner. As it continues to move downward or upward, it will gradually pry up or press down the sheet metal locally using the wedge principle, thereby completing a smooth and controllable bending deformation, effectively reducing the risk of impact and sheet metal tearing. It can be understood that in this embodiment, the bending cutter 6 bends the edge of the sheet metal extending from the discharge port 2. In actual operation, after the sheet metal is conveyed to the designated position by the feeding mechanism, the edge to be bent will extend a certain length from the discharge port 2. The extension length can be precisely controlled by a preset positioning device to ensure the accuracy of the bending dimensions. When the reciprocating pressure mechanism is activated, the lifting cutter 5, driven by the cam 4, moves the bending cutter 6 towards the extended edge of the sheet metal. At this time, the inclined blade 7 of the cutter will precisely contact the preset bending point on the edge of the sheet metal. Due to the inclined design of the blade 7, the initial contact is a line contact. As the cutter continues to move downward (or upward, depending on the bending direction), the contact area between the blade 7 and the sheet metal gradually increases, and the applied pressure also gradually increases. Utilizing the wedge principle, under the action of the inclined blade 7, the edge of the sheet metal will generate a component force along the inclined direction of the blade 7, causing the edge of the sheet metal to undergo a small elastic deformation at the contact point. Subsequently, as the lifting cutter 5 continues to move, the deformation gradually accumulates and is transmitted into the sheet metal, ultimately achieving a smooth transition from elastic deformation to plastic deformation, completing the bending at the required angle. Throughout the bending process, the contact method and force application process between the bending cutter 6 and the sheet material avoid problems such as surface damage, cracking, or inaccurate bending angles caused by excessive instantaneous impact force in traditional bending methods, significantly improving the quality and yield of sheet bending. It also makes the bending operation smoother, reduces noise and vibration during equipment operation, and extends the service life of the equipment.

[0022] In this real-time example, a clamping roller mechanism 8 is installed on the transmission channel formed inside the main frame 1, immediately behind the discharge port 2 (i.e., in front of the position where the sheet metal will be processed). The clamping roller mechanism 8 consists of a pair of driving rollers and driven rollers arranged vertically or horizontally opposite each other, forming a roller gap. A first drive unit 9 is connected to the driving rollers via a conveyor belt. The metal sheet passes through the roller gap, and when bending is required, the clamping roller mechanism 8 clamps and secures the sheet metal tightly. This prevents the sheet metal from pulling back or shifting laterally due to force during bending, ensuring processing accuracy.

[0023] Specifically, it also includes a brake lever 10, a brake contact 11, and a brake spring 12. The brake spring 12 is connected between the brake lever 10 and the brake contact 11. The brake lever 10 is movably mounted on the main frame 1, and the brake contact 11 abuts against the driven roller of the clamping roller assembly. When the equipment stops or requires emergency braking, the brake spring 12 causes the brake contact 11 to press against the driven roller, generating frictional resistance to prevent it from rotating freely, thereby preventing the sheet metal from continuing to move due to inertia and ensuring processing safety and accurate positioning.

[0024] In another feasible embodiment, a brake handle 13 is also included, which is hinged to the main frame 1 and its end abuts against the driven roller of the clamping roller assembly. The operator can manually engage or disengage the clamping roller assembly by manually operating the brake handle 13 to press or release the driven roller. This structure facilitates rapid control of the sheet material conveying status during equipment debugging, material changing, or maintenance, improving operational flexibility and safety.

[0025] It also includes a second drive component 14 fixed to the main frame 1. The cam 4 is fixed to the output shaft of the second drive component 14, which extends horizontally. The cam 4 is directly fixed to the output shaft via a flange connection. The rotational motion of the second drive component 14 is directly transmitted to the cam 4 without intermediate links, and the contour of the cam 4 controls the lifting motion of the lifting tool holder 5. This direct drive method has a simple structure and facilitates precise adjustment of the bending stroke, speed, and frequency by controlling the motor.

[0026] In summary, the reciprocating pressure mechanism for sheet metal processing of this utility model forms a stable sheet metal transmission channel through the main frame 1. Combined with the lifting tool holder 5 driven by the cam 4 and the corresponding bending tool 6, it realizes continuous and precise sheet metal bending processing. Its overall structural design is compact and reasonable, with smooth and reliable transmission. It ensures the positioning accuracy of the sheet metal during transmission and ensures the consistency of the bending tool 6's movement through reciprocating lifting motion, effectively improving the quality stability and processing efficiency of sheet metal bending. At the same time, the simple structural layout facilitates installation, debugging, and daily maintenance, adapting to the needs of various sheet metal processing scenarios and reducing the operational complexity and equipment operating costs during processing. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0027] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A reciprocating pressure mechanism for sheet metal processing, characterized in that, include: The main frame (1) has a discharge port (2) on its front side and a feed port (3) on its rear side, and a channel for conveying the sheet metal is formed between the discharge port (2) and the feed port (3); Cam (4) is rotatably mounted on the main frame (1); The lifting tool holder (5) is movably mounted on the front outer wall of the main frame (1) and is driven by the cam (4) to perform reciprocating lifting motion; as well as The bending cutter (6) is fixed on the lifting cutter holder (5) and located above or below the discharge port (2).

2. The reciprocating pressure mechanism for sheet metal processing according to claim 1, characterized in that, The bending tool (6) has an inclined cutting edge (7) facing the discharge port (2) and is used to contact the plate first during processing.

3. The reciprocating pressure mechanism for sheet metal processing according to claim 1, characterized in that, It also includes a clamping roller mechanism (8) disposed on the transmission channel and adjacent to the discharge port (2).

4. The reciprocating pressure mechanism for sheet metal processing according to claim 3, characterized in that, The clamping roller mechanism (8) includes a clamping roller group having an active roller and a driven roller; and a first drive member (9) which is connected to the active roller via a conveyor belt.

5. The reciprocating pressure mechanism for sheet metal processing according to claim 4, characterized in that, It also includes a brake lever (10), a brake contact (11) and a brake spring (12), the brake spring (12) being connected between the brake lever (10) and the brake contact (11), the brake lever (10) being movably mounted on the main frame (1), and the brake contact (11) abutting against the driven roller of the clamping roller assembly.

6. The reciprocating pressure mechanism for sheet metal processing according to claim 4, characterized in that, It also includes a brake handle (13), which is hinged to the main frame (1) and its end abuts against the driven roller of the clamping roller assembly.

7. The reciprocating pressure mechanism for sheet metal processing according to claim 1, characterized in that, It also includes a second drive unit (14) fixed on the main frame (1), and the cam (4) is fixed on the output shaft of the second drive unit (14).

8. The reciprocating pressure mechanism for sheet metal processing according to claim 1, characterized in that, The lifting tool holder (5) includes a top beam (15) and a cross beam (16) arranged parallel to each other, and the cam (4) is clamped between the top beam (15) and the cross beam (16).

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