Sheet punching device

Abstract

The utility model relates to the field of sheet production, in particular to a sheet punching device which comprises a machine base, a motor, a roll shaft, a synchronous belt, an assembly plate, a guide column, a punching cutter template and the like. The machine base is an integrated frame with a hollow middle part, a motor is arranged on the right side of the upper part of the machine base, roll shafts are rotatably arranged on the two sides in the machine base, the roll shaft on the front side is connected with an output shaft of the motor on the right side, synchronous belts are rotatably sleeved on the two sides of the roll shafts on the two sides, and a plurality of limiting blocks are uniformly arranged on the synchronous belts; guide columns are symmetrically arranged on the top of the assembly plate, and a stamping cutter die plate is arranged between the upper portions of the guide columns. Through combined use of the clamping plates and the elastic pieces, it is ensured that the sheets are firmly clamped in the punching process, the sheets are prevented from moving or deviating, and the punching quality is ensured; the air cylinder drives the top plate to ascend and descend and cooperates with the synchronous belt to operate, the sheets are automatically clamped and released, the manual operation time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of sheet material production, in particular to a sheet material punching device. Background Art

[0002] Sheet metal punching is a metalworking process used to cut flat materials, such as sheet metal or plastic, into specific shapes. This technology is widely used in the manufacturing industry, including automotive, aerospace, electronics, and other fields.

[0003] During the blanking process, a mechanical device called a punch press is usually used, which applies enough pressure to the sheet through a sharp die (punch) to cut the material into the desired shape.

[0004] Currently, common sheet punching devices mostly use a combination of screws and clamps to clamp the sheets to be punched. When clamping, the screw needs to be twisted to make the clamp cooperate with it, and the sheet is gradually clamped during the movement. However, this method relies heavily on the operator's feel and the tightening force of the screw. In large-scale punching operations, this method will affect the punching efficiency because each clamping and loosening requires additional time. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a sheet material punching device with a better clamping method.

[0006] In order to solve the above technical problems, the utility model provides a sheet punching device, including a machine base, a motor, a roller, a synchronous belt, an assembly plate, a guide column, a punching knife plate, a cover plate, a cylinder I, a connecting rod, a mounting plate, a slider, a guide rod, an elastic member, a splint and a feeding group. The machine base is an integrated frame with a hollow middle portion. A motor is provided on the upper right side of the machine base. Rollers are rotatably provided on both sides of the machine base. The front roller is connected to the output shaft of the right motor. Synchronous belts are rotatably sleeved on both sides of the rollers on both sides. A number of limit blocks are evenly provided on the synchronous belts. Assembly plates are provided on both sides of the outside of the machine base. Guide columns are symmetrically provided on the top of the assembly plates. A stamping knife plate is arranged between the upper parts of the guide columns, a cover plate is arranged between the tops of each guide column, a cylinder I is arranged on the top of the cover plate, the piston rod of cylinder I passes through the cover plate and is connected to the top of the stamping knife plate, connecting rods are hinged on both sides of the stamping knife plate, mounting plates are arranged on the tops of the assembly plates on both sides, sliders are slidably arranged on the mounting plates, the upper inner parts of the sliders on both sides are hinged to the lower parts of the upper connecting rods, guide rods are slidably arranged on both sides of the sliders, elastic parts are wrapped around the outside of each guide rod, a splint is provided at one end of the guide rods on both sides close to the upper inner part of the machine base, the elastic part is located between the splint and the slider, and a feeding group for carrying and conveying the sheet is provided at the lower inner part of the machine base.

[0007] Preferably, the feeding group includes: an inclined plate, a cylinder II and a top plate. The inclined plate is provided at the front position of the lower inner part of the machine base, and the cylinder II is installed at the middle position of the lower inner part of the machine base. The piston rod of the cylinder faces upward, and a top plate is provided on it for supporting the sheet after punching.

[0008] Preferably, the bottom end of the splint is flush with the upper end of the synchronous belt, and the splint is in sliding contact with the synchronous belt, and the overall length of the splint is adapted to the interval between every two limit blocks of the synchronous belt.

[0009] Preferably, when the cylinder I drives the punching die plate to descend, the connecting rods on both sides are synchronously retracted inwards, and drive the slider to slide on the mounting plate, so that the guide rods and the clamping plates on both sides are synchronously moved inwards and gradually approached.

[0010] Preferably, the feeding group further comprises: an air collecting frame and a fan, wherein the air collecting frame is provided at the rear lower portion of the base, the fan is provided in the air collecting frame, and the air supply end of the fan faces forward.

[0011] Preferably, the front end of the top plate abuts against the rear end of the inclined plate, the front end of the air collecting frame abuts against the rear end of the top plate, and the top plate corresponds to the bottom of the punching die plate.

[0012] Beneficial effects: 1. The combined use of clamps and elastic parts ensures that the sheet is firmly clamped during the punching process, preventing the sheet from moving or deflecting, and ensuring the punching quality; the cylinder drives the top plate to rise and fall, and cooperates with the synchronous belt to achieve automatic clamping and release of the sheet, reducing manual operation time and improving production efficiency.

[0013] 2. The combination of the top plate and the inclined plate allows the sheets to slide smoothly after punching, reducing the operator's manual intervention and simplifying the operation process; the punched sheets are blown forward by the fan, and the synchronous belt conveys the residual materials backward, which is convenient for subsequent collection and processing and reduces resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a three-dimensional structural diagram of the components such as the mounting plate, slider and guide rod of the utility model.

[0016] Figure 3 It is a three-dimensional structural diagram of the guide rod, elastic member, clamping plate and other components of the utility model.

[0017] Figure 4 It is a three-dimensional structural diagram of the components such as the inclined plate, cylinder II and top plate of the utility model.

[0018] The marks in the accompanying drawings are: 1-machine base, 2-motor, 3-roller, 4-synchronous belt, 5-assembly plate, 6-guide column, 7-punch die plate, 8-cover plate, 9-cylinder I, 10-connecting rod, 11-mounting plate, 12-slider, 13-guide rod, 14-elastic part, 15-splint, 16-inclined plate, 17-cylinder II, 18-top plate, 19-wind collecting frame, 20-fan. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Embodiment: A sheet material punching device, such as Figure 1-Figure 4 As shown, it includes a machine base 1, a motor 2, a roller 3, a synchronous belt 4, an assembly plate 5, a guide column 6, a punching die plate 7, a cover plate 8, a cylinder I 9, a connecting rod 10, a mounting plate 11, a slider 12, a guide rod 13, an elastic member 14, a clamping plate 15 and a feeding group. The machine base 1 is an integrated frame with a hollow middle portion. A motor 2 is provided on the upper right side of the machine base 1. The motor 2 provides power to drive the synchronous belt 4 to operate. Rollers 3 are provided on both sides of the machine base 1. The front roller 3 is connected to the output shaft of the right motor 2. Both sides of the rollers 3 on both sides rotate. It is equipped with a synchronous belt 4, and the roller 3 cooperates with the synchronous belt 4 to ensure its smooth operation. A number of limit blocks are evenly arranged on the synchronous belt 4. Assembly plates 5 are provided on both sides of the outside of the machine base 1. Guide columns 6 are symmetrically provided on the top of the assembly plates 5. A punching die plate 7 is provided between the upper parts of each guide column 6. The punching die plate 7 is the main component of the punching sheet to realize the cutting function. A cover plate 8 is provided between the tops of each guide column 6. A cylinder Ⅰ 9 is provided on the top of the cover plate 8. The piston rod of the cylinder Ⅰ 9 passes through the cover plate 8 and is connected to the top of the punching die plate 7. Connecting rods 10 are hinged on both sides of the knife template 7, mounting plates 11 are provided on the tops of the assembly plates 5 on both sides, and sliders 12 are slidably provided on the mounting plates 11. The upper inner parts of the sliders 12 on both sides are hinged to the lower part of the upper connecting rod 10, and guide rods 13 are slidably provided on both sides of the sliders 12. Elastic members 14 are wrapped around the outside of each guide rod 13. The elastic members 14 provide elastic force to ensure that the splint 15 is in close contact with the synchronous belt 4. A splint 15 is provided at one end of the guide rods 13 on both sides close to the upper inner part of the machine base 1, and the bottom end of the splint 15 is flush with the upper end of the synchronous belt 4 , and the splint 15 is in sliding contact with the synchronous belt 4. The overall length of the splint 15 is adapted to the interval between every two limit blocks of the synchronous belt 4. The splint 1 is used to clamp the sheet to prevent it from moving during the punching process. The elastic member 14 is located between the splint 15 and the slider 12. The lower part of the machine base 1 is provided with a feeding group for carrying and conveying the sheet. When the cylinder Ⅰ9 drives the punching die plate 7 to descend, the connecting rods 10 on both sides are synchronously retracted inward, and drive the slider 12 to slide on the mounting plate 11, so that the guide rods 13 on both sides and the splint 15 move inward synchronously and gradually approach each other.

[0021] like Figure 1 and Figure 4 As shown, the feeding group includes: an inclined plate 16, a cylinder II 17 and a top plate 18. The inclined plate 16 is provided at the front position of the lower inner part of the machine base 1, and the cylinder II 17 is installed at the middle position of the lower inner part of the machine base 1. The cylinder II 17 provides power to drive the top plate 18 to rise and fall, thereby driving the sheet to move. The piston rod of the cylinder faces upward, and a top plate 18 is provided on it for supporting the sheet after punching. The front end of the top plate 18 abuts against the rear end of the inclined plate 16, and the front end of the air collecting frame 19 abuts against the rear end of the top plate 18, and the top plate 18 corresponds to the bottom of the punching knife template 7.

[0022] like Figure 1 and Figure 4 As shown, the feeding group also includes: an air collecting frame 19 and a fan 20. The air collecting frame 19 is provided at the rear lower part of the base 1, and the fan 20 is provided in the air collecting frame 19. The air supply end of the fan 20 faces forward, and the sheet material punched on the top plate 18 is blown onto the inclined plate 16 by the fan 20. The sheet material slides down the slope of the inclined plate 16 and is then collected to improve the collection efficiency.

[0023] First, place the sheet to be punched on the feeding group in the machine base 1. The feeding group includes a clamping plate 15, an inclined plate 16, a cylinder II 17 and a top plate 18. The top plate 18 is used to carry the sheet after punching. When the sheet is placed, start the motor 2. The motor 2 drives the roller 3 in the machine base 1 to rotate. Both sides of the roller 3 are covered with a synchronous belt 4. There are several limit blocks evenly arranged on the synchronous belt 4. These limit blocks can assist in the positioning of the sheet. When the synchronous belt 4 is running, the limit blocks help the sheet move forward and reach the predetermined position. After the sheet reaches the predetermined position, the cylinder I 9 drives the punching die plate 7 to descend. As the punching die plate 7 descends, the connecting rods 10 on both sides are synchronously retracted inward, and drive the slider 12 to slide on the mounting plate 11. A guide rod 13 is provided on the inside of the slider 12, and an elastic member 14 is wound around the outside of the guide rod 13. One end of the guide rod 13 is connected to the clamping plate 15. As the connecting rod 10 moves, the guide rod 13 and the clamping plate 15 also move inward synchronously, and finally gradually approach and clamp the sheet. At this time, the elastic member 14 is compressed to ensure that the sheet is firmly clamped. At this time, the cylinder II 17 is started, and its piston rod extends, driving the top plate 18 to rise, and slowly stopping the synchronous belt 4 until the top plate 18 contacts the bottom surface of the sheet, and then the piston rod continues to extend slowly. At this time, after the sheet is clamped, the punching die plate 7 continues to move downward until the die contacts the sheet and applies sufficient pressure to cut the sheet into the desired shape. During this process, the guide column 6 ensures the vertical movement of the punching die plate 7, and the cover plate 8 provides a stable support for the cylinder I 9. When the punching is completed, the cylinder I 9 retracts, driving the punching die plate 7 to rise and releasing the pressure on the sheet. At the same time, the elastic member 14 returns to its original shape, pushing the splint 15 to move outward, releasing the sheet, and the cylinder II 17 drives , its piston rod retracts, driving the top plate 18 to descend, and the synchronous belt 4 continues to operate. After the top plate 18 drops to the same level as the inclined plate 16, the fan 20 is started for subsequent processing or collection. The front end of the top plate 18 abuts against the rear end of the inclined plate 16. The design of the inclined plate 16 can help the sheet slide smoothly. The fan 20 continues to work, blowing air forward through the air collecting frame 19 to help blow the punched sheet forward and slide smoothly with the inclined plate 16, and then collect it uniformly. The synchronous belt 4 continues to transport the sheet residue backward and finally makes it fall. A collection box can be placed underneath to collect the residue in a centralized manner.

[0024] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A sheet punching device, characterized in that: The machine base (1) comprises a motor (2), a roller (3), a synchronous belt (4), an assembly plate (5), a guide column (6), a punching die plate (7), a cover plate (8), a cylinder I (9), a connecting rod (10), a mounting plate (11), a slider (12), a guide rod (13), an elastic member (14), a clamping plate (15) and a feeding group. The machine base (1) is an integrated frame with a hollow middle portion. The motor (2) is arranged on the right side of the upper portion of the machine base (1). The machine base (1) Roller shafts (3) are rotatably provided on both sides of the inner frame, the front roller shaft (3) is connected to the output shaft of the motor (2) on the right side, and synchronous belts (4) are rotatably provided on both sides of the roller shafts (3), and a number of limit blocks are evenly provided on the synchronous belts (4). Assembly plates (5) are provided on both sides of the outer frame (1), and guide columns (6) are symmetrically provided on the top of the assembly plates (5). A punching die plate (7) is provided between the upper parts of the guide columns (6). A cover plate (8) is provided between the tops of the columns (6), a cylinder I (9) is provided on the top of the cover plate (8), a piston rod of the cylinder I (9) passes through the cover plate (8) and is connected to the top of the punching die plate (7), connecting rods (10) are hinged on both sides of the punching die plate (7), mounting plates (11) are provided on the tops of the assembly plates (5) on both sides, sliders (12) are slidably provided on the mounting plates (11), and the inner upper part of the sliders (12) on both sides is hinged. The two ends of the guide rods (13) on both sides are hinged to the lower part of the connecting rod (10) above, and guide rods (13) are slidably provided on both sides of the slider (12). An elastic member (14) is wound around the outside of each guide rod (13). A clamping plate (15) is provided at one end of the guide rods (13) on both sides close to the upper part of the base (1). The elastic member (14) is located between the clamping plate (15) and the slider (12). A feeding group for carrying and conveying the sheet is provided at the lower part of the base (1).

2. A sheet material punching device according to claim 1, characterized in that: The feeding group comprises: an inclined plate (16), a cylinder II (17) and a top plate (18), wherein the inclined plate (16) is provided at the front side of the lower inner portion of the machine base (1), and the cylinder II (17) is installed at the middle position of the lower inner portion of the machine base (1), wherein the piston rod of the cylinder faces upward and a top plate (18) for supporting the sheet after punching is provided on the cylinder.

3. A sheet material punching device according to claim 2, characterized in that: The bottom end of the clamping plate (15) is flush with the upper end of the synchronous belt (4), and the clamping plate (15) is in sliding contact with the synchronous belt (4). The overall length of the clamping plate (15) is adapted to the interval between every two limit blocks of the synchronous belt (4).

4. A sheet material punching device according to claim 3, characterized in that: When the cylinder I (9) drives the punching die plate (7) to descend, the connecting rods (10) on both sides are synchronously retracted inwards and drive the slider (12) to slide on the mounting plate (11), so that the guide rods (13) and the clamping plates (15) on both sides are synchronously moved inwards and gradually approach each other.

5. The sheet punching device according to claim 4, characterized in that: The feeding group further comprises: an air collecting frame (19) and a fan (20); the air collecting frame (19) is arranged at a rear position in the lower part of the machine base (1); the fan (20) is arranged in the air collecting frame (19); and the air supply end of the fan (20) faces forward.

6. The sheet punching device according to claim 5, characterized in that: The front end of the top plate (18) abuts against the rear end of the inclined plate (16), the front end of the air collecting frame (19) abuts against the rear end of the top plate (18), and the top plate (18) corresponds to the bottom of the punching die plate (7).

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