Automatic punching machine

Abstract

The utility model discloses an automatic punching machine which comprises a base, a lower die is arranged on the top of the base, a guide rod is fixedly installed on the top of the base, a feeding roller located on one side of the lower die is arranged on the top of the base, and a lower round roller located on the other side of the lower die is arranged on the top of the base. A top plate is fixedly mounted at the tops of the guide rods, the guide rods are slidably connected with a stamping plate located between the base and the top plate in a penetrating mode, a lower synchronous wheel located on one side of the lower round roller is rotationally arranged at the top of the base, and an upper synchronous wheel located over the lower synchronous wheel is rotationally arranged at the top of the top plate. The upper synchronous wheel is in transmission connection with the lower synchronous wheel through a synchronous belt, and a clamping groove is formed in the peripheral face of the synchronous belt. By arranging the synchronous belt and the fixing frame, the stamped material belt is pulled to move, and the non-stamped material belt is moved to the position above the lower die, so that the material belt moves along with rising of the stamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to an automatic punching machine. Background Art

[0002] In industrial production, stamping is a processing method with a wide range of uses and a very large demand. During the stamping process, the rolled material is usually fed into the lower die of the stamping equipment, and then the upper die is driven up and down by a power device to make the upper die contact and extrude with the lower die to complete the stamping process.

[0003] When continuously stamping the material coil, in order to maintain continuous feeding, special feeding equipment is needed to feed the stamping machine, which not only increases the equipment cost, but also the parameter setting of the feeding equipment needs to be coordinated with the stamping machine, and the threshold for use is relatively high.

[0004] For this purpose, we propose an automatic punching machine. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic punching machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic punching machine, comprising a base, a lower mold is arranged on the top of the base, a guide rod is fixedly installed on the top of the base, a feeding roller is arranged on the top of the base on one side of the lower mold, a lower round roller is arranged on the top of the base on the other side of the lower mold, a top plate is fixedly installed on the top of the guide rod, a stamping plate is slidably connected through the guide rod and is located between the base and the top plate, a lower synchronous wheel is rotatably arranged on the top of the base on one side of the lower round roller, and a lower synchronous wheel is rotatably arranged on the top of the top plate on the positive side of the lower synchronous wheel The upper synchronous wheel at the top is connected to the lower synchronous wheel through a synchronous belt, and a clamping groove is provided on the outer circumferential surface of the synchronous belt. A first bevel gear is fixedly installed on one side of the lower synchronous wheel, and a second bevel gear is fixedly installed on one end of the lower round roller, and the second bevel gear is meshed with the first bevel gear. A fixing frame is fixedly installed on one side of the stamping plate, and a clamping plate is rotatably connected to one side of the fixing frame, and the inside of the clamping groove on the top of the clamping plate is in clamping contact, and a spring plate is provided on the side of the clamping plate facing the fixing frame, and the other end of the spring plate is fixedly installed on one side of the fixing frame.

[0007] Optionally, the lower round roller is rotatably connected to the top of the base via a bracket, the top of the mounting bracket of the lower round roller is rotatably connected to the upper round roller, and a transmission gear is fixedly mounted on the same end of the upper round roller and the lower round roller, and the two transmission gears are meshed.

[0008] Optionally, a ratchet is provided at one end of the upper round roller above the second bevel gear, and a ratchet pawl engaged with the ratchet is provided on the rotating bracket of the upper round roller.

[0009] Optionally, a convex block is fixedly installed on one side of the stamping plate inside the synchronous belt. Both sides of the convex block are in sliding contact with both sides inside the synchronous belt, and the thickness of the convex block is the same as the width inside the synchronous pulley.

[0010] Optionally, a hydraulic cylinder is provided in the middle of the top plate. The movable end at the bottom of the hydraulic cylinder is fixedly installed with the top of the stamping plate, and a stamping die is provided on the top of the stamping plate directly above the lower die.

[0011] Optionally, the four guide rods are respectively fixedly installed at the four corners of the top of the base, and the four corners of the stamping plate are respectively penetrated and slidably connected with the four guide rods.

[0012] Optionally, the upper round roller is directly above the lower round roller, the bottom of the upper round roller does not contact the top of the lower round roller, and anti-slip rubber is bonded to the outer circumferential surfaces of the upper round roller and the lower round roller.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For this automatic stamping machine, by providing a synchronous belt and a fixing frame, when the stamping plate completes stamping and moves upward along the guide rod, the pressing plate is engaged with the engaging groove on the outer side of the synchronous belt under the action of the elastic piece. As the stamping plate rises, the fixing frame and the pressing plate drive the synchronous belt to rotate, thereby causing the lower synchronous pulley to drive the first bevel gear to rotate, further driving the second bevel gear and the lower round roller to rotate, and then pulling the stamped strip to move, moving the unstamped strip above the lower die, so that the strip moves as the stamping plate rises.

[0015] For this automatic stamping machine, by providing a feeding roller, the strip is sent above the lower die through the feeding roller for stamping. As the stamping plate descends, the pressing plate automatically contracts, and at the same time, a ratchet is provided to prevent the upper round roller and the lower round roller from rotating in the reverse direction when the stamping plate moves downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an automatic stamping machine of the present utility model;

[0017] Figure 2 is an enlarged view of part A of an automatic stamping machine of the present utility model; Figure 1

[0018] Figure 3 is a schematic diagram of the structure of the lower round roller of an automatic stamping machine of the present utility model;

[0019] ​Figure 4 In the present utility model, it is the Figure 3 enlarged view of position B in an automatic stamping machine.

[0020] In the figure: 1, base; 2, lower die; 3, guide rod; 4, top plate; 5, hydraulic cylinder; 6, stamping plate; 7, stamping die; 8, feeding roller; 9, lower round roller; 10, upper round roller; 11, lower synchronous pulley; 12, upper synchronous pulley; 13, synchronous belt; 14, clamping groove; 15, first bevel gear; 16, second bevel gear; 17, ratchet; 18, transmission gear; 19, fixing bracket; 20, pressing plate; 21, elastic sheet; 22, convex block. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4, the present utility model provides an automatic stamping machine, which includes a base 1. A lower die 2 is arranged on the top of the base 1. A guide rod 3 is fixedly installed on the top of the base 1. A feeding roller 8 is arranged on the top of the base 1 on one side of the lower die 2. A lower circular roller 9 is arranged on the top of the base 1 on the other side of the lower die 2. The top of the guide rod 3 is fixedly installed with a top plate 4. A stamping plate 6 is slidably connected through the guide rod 3 between the base 1 and the top plate 4. A lower synchronous pulley 11 is rotatably arranged on the top of the base 1 on one side of the lower circular roller 9. An upper synchronous pulley 12 is rotatably arranged on the top of the top plate 4 directly above the lower synchronous pulley 11. The upper synchronous pulley 12 is in transmission connection with the lower synchronous pulley 11 through a synchronous belt 13. A clamping groove 14 is formed on the outer peripheral surface of the synchronous belt 13. A first bevel gear 15 is fixedly installed on one side of the lower synchronous pulley 11. A second bevel gear 16 is fixedly installed at one end of the lower circular roller 9. The second bevel gear 16 meshes with the first bevel gear 15. A fixed frame 19 is fixedly installed on one side of the stamping plate 6. A pressing plate 20 is rotatably connected to one side of the fixed frame 19. The top of the pressing plate 20 is in clamping contact with the inside of the clamping groove 14. A spring piece 21 is arranged on the side of the pressing plate 20 facing the fixed frame 19. The other end of the spring piece 21 is fixedly installed with the side of the fixed frame 19. By arranging the synchronous belt 13 and the fixed frame 19, when the stamping plate 6 finishes stamping and moves upward along the guide rod 3, the pressing plate 20 is clamped with the clamping groove 14 on the outer side of the synchronous belt 13 under the action of the spring piece 21. As the stamping plate 6 rises, the fixed frame 19 and the pressing plate 20 drive the synchronous belt 13 to rotate, thereby causing the lower synchronous pulley 11 to drive the first bevel gear 15 to rotate, and then driving the second bevel gear 16 and the lower circular roller 9 to rotate, and then pulling the stamped strip to move, moving the unstamped strip above the lower die 2, so that the strip moves as the stamping plate 6 rises.

[0023] The lower circular roller 9 is rotatably connected to the top of the base 1 through a bracket. The top of the mounting bracket of the lower circular roller 9 is rotatably connected with an upper circular roller 10. Transmission gears 18 are fixedly installed at the same end of the upper circular roller 10 and the lower circular roller 9. The two transmission gears 18 mesh. A ratchet 17 is arranged at one end of the upper circular roller 10 above the second bevel gear 16. A pawl for clamping with the ratchet 17 is arranged on the rotating bracket of the upper circular roller 10. The upper circular roller 10 is directly above the lower circular roller 9. The bottom of the upper circular roller 10 does not contact the top of the lower circular roller 9. Anti-slip rubbers are bonded to the outer peripheral surfaces of the upper circular roller 10 and the lower circular roller 9. By arranging the feeding roller 8, after the strip passes through the feeding roller 8, it is sent above the lower die 2 for stamping. As the stamping plate 6 descends, the pressing plate 20 automatically contracts. At the same time, by arranging the ratchet 17, the upper circular roller 10 and the lower circular roller 9 are prevented from rotating in the reverse direction when the stamping plate 6 moves downward.

[0024] One side of the stamping plate 6 is fixedly installed with a convex block 22 located inside the synchronous belt 13. Both sides of the convex block 22 are in sliding contact with both sides inside the synchronous belt 13. The thickness of the convex block 22 is the same as the width inside the synchronous pulley.

[0025] A hydraulic cylinder 5 is arranged in the middle of the top plate 4. The movable end at the bottom of the hydraulic cylinder 5 is fixedly installed with the top of the stamping plate 6. A stamping die 7 is arranged on the top of the stamping plate 6 directly above the lower die 2. Four guide rods 3 are respectively fixedly installed at the four corners of the top of the base 1. The four corners of the stamping plate 6 are respectively penetrated and slidably connected with the four guide rods 3.

[0026] Working principle:

[0027] After the strip is sent through the feeding roller 8, it is sent above the lower die 2 for stamping. As the stamping plate 6 descends, the pressing plate 20 automatically contracts. At the same time, the ratchet 17 is arranged to prevent the upper round roller 10 and the lower round roller 9 from rotating in the reverse direction when the stamping plate 6 moves downward. When the stamping of the stamping plate 6 is completed and it moves upward along the guide rod 3, the pressing plate 20 is clamped with the clamping groove 14 on the outer side of the synchronous belt 13 under the action of the elastic piece 21. As the stamping plate 6 rises, the fixed frame 19 and the pressing plate 20 drive the synchronous belt 13 to rotate, so that the lower synchronous pulley 11 drives the first bevel gear 15 to rotate, and then drives the second bevel gear 16 and the lower round roller 9 to rotate, and then pulls the stamped strip to move, moving the unstamped strip above the lower die 2, so that the strip moves as the stamping plate 6 rises.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic stamping machine, comprising a base (1), characterized in that, A lower mold (2) is provided at the top of the base (1). A guide rod (3) is fixedly installed at the top of the base (1). A feeding roller (8) is provided at the top of the base (1) on one side of the lower mold (2). A lower circular roller (9) is provided at the top of the base (1) on the other side of the lower mold (2). The top of the guide rod (3) is fixedly installed with a top plate (4). A stamping plate (6) is slidably connected through the guide rod (3) between the base (1) and the top plate (4). A lower synchronous pulley (11) is rotatably provided at the top of the base (1) on one side of the lower circular roller (9). An upper synchronous pulley (12) is rotatably provided at the top of the top plate (4) directly above the lower synchronous pulley (11). The upper synchronous pulley (12) is in transmission connection with the lower synchronous pulley (11) through a synchronous belt (13). A clamping groove (14) is formed on the outer peripheral surface of the synchronous belt (13). A first bevel gear (15) is fixedly installed on one side of the lower synchronous pulley (11). A second bevel gear (16) is fixedly installed at one end of the lower circular roller (9). The second bevel gear (16) is meshed with the first bevel gear (15). A fixing frame (19) is fixedly installed on one side of the stamping plate (6). A pressing plate (20) is rotatably connected to one side of the fixing frame (19). The top of the pressing plate (20) is in tight contact with the inside of the clamping groove (14). A elastic sheet (21) is provided on the side of the pressing plate (20) facing the fixing frame (19). The other end of the elastic sheet (21) is fixedly installed with the side of the fixing frame (19).

2. The automatic stamping machine according to claim 1, wherein The lower circular roller (9) is rotatably connected to the top of the base (1) through a bracket. An upper circular roller (10) is rotatably connected to the top of the mounting bracket of the lower circular roller (9). Transmission gears (18) are fixedly installed at the same ends of the upper circular roller (10) and the lower circular roller (9). The two transmission gears (18) are meshed with each other.

3. An automatic stamping machine according to claim 2, characterized in that, A ratchet wheel (17) is provided at one end of the upper circular roller (10) above the second bevel gear (16). A ratchet pawl that is engaged with the ratchet wheel (17) is provided on the rotating bracket of the upper circular roller (10).

4. An automatic stamping machine according to claim 1, characterized in that, A convex block (22) is fixedly installed on one side of the stamping plate (6) inside the synchronous belt (13). The two sides of the convex block (22) are in sliding contact with the two sides inside the synchronous belt (13). The thickness of the convex block (22) is the same as the width inside the synchronous pulley.

5. An automatic stamping machine according to claim 1, wherein, A hydraulic cylinder (5) is provided in the middle of the top plate (4). The movable end at the bottom of the hydraulic cylinder (5) is fixedly installed with the top of the stamping plate (6). A stamping die (7) is provided at the top of the stamping plate (6) directly above the lower mold (2).

6. An automatic stamping machine according to claim 1, characterized in that, The four guide rods (3) are respectively fixedly installed at the four corners of the top of the base (1). The four corners of the stamping plate (6) are respectively slidably connected through the four guide rods (3).

7. An automatic stamping machine according to claim 2, characterized in that, The upper circular roller (10) is located directly above the lower circular roller (9). The bottom of the upper circular roller (10) does not contact the top of the lower circular roller (9). Anti-slip rubbers are bonded to the outer peripheral surfaces of the upper circular roller (10) and the lower circular roller (9).

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