Blanking device for cold-formed section steel production

Abstract

The invention belongs to the technical field of cold-formed section steel processing, and particularly relates to a blanking device for cold-formed section steel production, which comprises a base, a vertical frame fixed at the top of the base, a hydraulic cylinder fixed at the top end of the vertical frame, a fixed frame connected to an output shaft of the hydraulic cylinder, a blanking head fixed at the bottom end of the fixed frame, and a blanking die mounted at the top of the base, a water tank is fixed to the front end face of the vertical frame, hoses are connected to a water inlet pipe and a water outlet pipe of the water tank, a cooling tank is fixed to the top of the blanking head, the other ends of the two hoses are connected with a water inlet pipe and a water outlet pipe of the cooling tank respectively, one-way valves are installed in the water inlet pipe and the water outlet pipe of the cooling tank respectively, and a backflow assembly is arranged in the cooling tank. According to the part blanking device, parts are blanked, waste materials after blanking fall into the drawer to be collected, and the backflow assembly can drive water in the cooling box and the water tank to circularly flow through the two hoses during blanking, so that the blanking head is cooled.

Description

Technical Field

[0001] The invention relates to the technical field of cold-bent steel processing, in particular to a punching device for cold-bent steel production. Background Art

[0002] Cold-formed steel is the main material for making light steel structures. It is made by cold-forming steel plates or steel strips. Not only can its wall thickness be made very thin, but it also greatly simplifies the production process and improves production efficiency. It can produce various profiles with uniform wall thickness but complex cross-sectional shapes and cold-formed steel of different materials that are difficult to produce by general hot rolling methods. In addition to being used in various building structures, cold-formed steel is also widely used in vehicle manufacturing, agricultural machinery manufacturing, etc. Blanking is a stamping process that uses a mold to separate the sheet material. It mainly includes blanking, punching, cutting, trimming, etc. Blanking usually refers to blanking and punching. In the production of steel, punching is used to facilitate the installation of subsequent steel.

[0003] The punch head will generate very high temperature after working for a long time, so the punch head needs to be cooled. The existing method is generally to stop the machine to let it cool down naturally before working again, or to manually spray coolant on the punch head to cool it down. Such cooling methods are relatively troublesome, so corresponding improvements are made to address this problem. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a blanking device for producing cold-bent steel.

[0005] The invention provides a blanking device for cold-bent steel production, comprising a base, an L-shaped vertical frame is fixed on the top of the base, a downward hydraulic cylinder is fixed on the top of the vertical frame, the output shaft of the hydraulic cylinder is connected to the fixed frame, the bottom end of the fixed frame is fixed with a blanking head, a blanking die located directly below the blanking head is installed on the top of the base, a drawer is inserted into the front end of the base, a water tank is fixed on the front end surface of the vertical frame, hoses are connected to the water inlet pipe and the water outlet pipe of the water tank, a cooling box is fixed on the top of the blanking head, the other ends of the two hoses are respectively connected to the water inlet pipe and the water outlet pipe of the cooling box, and one-way valves are respectively installed in the water inlet pipe and the water outlet pipe of the cooling box, a reflux component is provided in the cooling box, parts to be blanked are placed on the blanking die, and then the hydraulic cylinder is started, the output shaft of the hydraulic cylinder drives the fixed frame and the blanking head to move downward, the parts are blanked, and the waste after blanking falls into the drawer and is collected, and the reflux component drives the water in the cooling box and the water tank to circulate through the two hoses, thereby cooling the blanking head.

[0006] Preferably, the reflux assembly includes a push block, a gap is left between the top of the push block and the inner wall of the top wall of the cooling box, an elastic connection is formed between the push block and the punching head, a vertical rod is inserted into the top of the cooling box, the bottom end of the vertical rod abuts against the inclined surface of the push block, and a limiting rod located above the vertical rod is fixed to the front end surface of the vertical frame. When the punching head is reset and moves upward, the vertical rod will move downward after contacting the limiting rod, and then the vertical rod will push the push block to the right through the action of the inclined surface, and the push block will push the water in the cooling box into the water tank through the hose on the right, and the water in the water tank will flow into the cooling box through the hose on the left. Since there is a gap at the top of the push block, the push block can be reset normally under the action of elastic force.

[0007] Preferably, an ear block is fixed on the top of the punching head, a guide column with an end fixed to the push block is inserted on the ear block, a spring is sleeved on the guide column, and the two ends of the spring are respectively fixedly connected to the push block and the ear block, so that the push block can be driven to reset and move by the elastic force of the spring.

[0008] Preferably, a mounting frame is fixed on the top of the cooling box, and the mounting frame is rotatably connected to a downward main shaft, a fan blade is fixed to the bottom end of the main shaft, and a front-to-back secondary shaft is rotatably connected to the mounting frame, and first bevel gears that can mesh with each other are fixedly sleeved on the secondary shaft and the main shaft respectively, and a flat gear is also fixedly sleeved on the secondary shaft, and a rack meshing with the flat gear is fixed on the vertical rod, and when the vertical rod moves, it drives the rack to move synchronously, and then the rack will mesh with the flat gear to drive the secondary shaft to rotate, and then the secondary shaft will drive the main shaft and the fan blades to rotate through the meshing transmission of the two first bevel gears, so that the cooling box can be cooled, thereby improving the cooling effect of the punching and cutting head.

[0009] Preferably, the reflux assembly includes a push plate, a gap is left between the top of the push plate and the top inner wall of the cooling box, an ear seat is fixed on the top of the punching head, a screw rod is rotatably connected to the ear seat, the screw rod is threadedly connected to the push plate, a shaft column is rotatably connected to the rear of the cooling box, the adjacent ends of the shaft column and the screw rod are respectively fixed with a second bevel gear meshingly connected, the rear end fixed sleeve of the shaft column is provided with a gear ring, and the front end surface of the vertical frame is fixed with a gear plate that can be meshed with the gear ring. When the cooling box moves until the gear ring and the gear plate are meshed together, the gear ring will drive the shaft column to rotate, and then the shaft column drives the screw rod to rotate through the transmission cooperation of the two second bevel gears. Under the action of the screw rod, the push plate will push the water in the cooling box into the water tank through the hose on the right. Since there is a gap at the top of the push plate, when the screw rod rotates in the opposite direction, the push plate can be reset normally.

[0010] Preferably, a downward sinking groove is provided on the top of the punching head, so that the cooling water can more deeply contact the position with the highest temperature on the punching head, thereby improving the cooling effect on the punching head.

[0011] Preferably, a pair of guide rods are fixed on the top of the base, and sliding rods are fixed at both ends of the punching head. The sliding rods are slidably connected to the guide rods. Through the cooperation between the sliding rods and the guide rods, the movement process of the punching head can be made more stable and the force during punching can be more stable.

[0012] Preferably, a slide rail is fixed on the top of the base, and a pair of forward-facing clamping plates are slidably connected in the slide rail, and the two clamping plates are symmetrically distributed on both sides of the blanking die. A bidirectional screw is rotatably connected in the slide rail, and the bidirectional screw is threadedly connected to the two clamping plates. A gear cylinder is fixedly sleeved at one end of the bidirectional screw, and a gear rod is fixed on the slide rod close to the side of the gear cylinder, and the gear rod is meshingly connected to the gear cylinder. When the slide rod moves downward, it will synchronously drive the gear rod to move, and then the gear rod will engage the gear cylinder to drive the bidirectional screw to rotate, and then the bidirectional screw will drive the two clamping plates to approach each other to clamp the parts, and then the gear rod will disengage from the gear cylinder, and the blanking head will continue to move downward for blanking, thereby realizing automatic clamping and loosening of the parts.

[0013] Preferably, a groove is provided on the top of the base, a round hole leading to the drawer is provided on the bottom wall of the groove, and the punching die is detachably fixed in the groove, so that the punching die can be conveniently replaced separately after the punching die reaches the end of its service life.

[0014] Compared with the prior art, the present invention provides a blanking device for cold-bent steel production, which has the following beneficial effects:

[0015] 1. A blanking device for cold-bent steel production, by setting a water tank and a cooling box, when blanking, the reflux component will drive the water in the cooling box and the water tank to circulate through two hoses, so as to cool the blanking head.

[0016] 2. A blanking device for cold-bent steel production is provided with a push block. When the blanking head is reset and moves upward, the vertical rod will move downward after contacting the limiting rod, and then the vertical rod will push the push block to the right through the action of the inclined surface. The push block will push the water in the cooling box into the water tank through the hose on the right, and the water in the water tank will flow into the cooling box through the hose on the left.

[0017] 3. A blanking device for cold-bent steel production, which is provided with fan blades. When the vertical rod moves, the rack is driven to move synchronously. Then the rack will engage the flat gear to drive the secondary shaft to rotate. Then the secondary shaft will drive the main shaft and the fan blades to rotate through the meshing transmission of the two first bevel gears, so that the cooling box can be cooled, thereby improving the cooling effect on the blanking head.

[0018] 4. A blanking device for cold-bent steel production is provided with a push plate. When the cooling box moves to the point where the gear ring and the gear plate are meshed together, the gear ring will drive the shaft column to rotate, and then the shaft column drives the screw to rotate through the transmission cooperation of the two second bevel gears. Under the action of the screw, the push plate will push the water in the cooling box into the water tank through the hose on the right.

[0019] 5. A blanking device for cold-bent steel production, by setting a clamping plate, when the sliding rod moves downward, it will synchronously drive the gear rod to move, then the gear rod will engage the gear cylinder to drive the bidirectional screw to rotate, then the bidirectional screw will drive the two clamping plates to approach each other to clamp the parts, and then the gear rod will disengage from the gear cylinder, and the blanking head will continue to move downward for blanking, thereby realizing automatic clamping and loosening of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a blanking device for cold-bent steel production proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the push block installation structure of a blanking device for cold-bent steel production proposed by the present invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0023] Figure 4 A schematic diagram of the fan blade installation structure of a blanking device for cold-bent steel production proposed by the present invention;

[0024] Figure 5 A schematic diagram of the push plate installation structure of a blanking device for cold-bent steel production proposed by the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at B;

[0026] Figure 7 A schematic diagram of the installation structure of a clamping plate of a blanking device for cold-bent steel production proposed by the present invention;

[0027] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at C;

[0028] Fig. 9 This is a schematic diagram of the installation structure between a punching die and a base of a punching device for producing cold-bent steel proposed by the present invention.

[0029] In the figure: 1. base; 2. vertical frame; 3. hydraulic cylinder; 4. fixed frame; 5. punching head; 6. punching die; 7. cooling box; 8. water tank; 9. hose; 10. push block; 11. vertical rod; 12. limit rod; 13. ear block; 14. guide column; 15. spring; 16. one-way valve; 17. mounting frame; 18. main shaft; 19. fan blade; 20. secondary shaft; 21. flat gear; 22. rack; 23. first bevel gear; 24. ear seat; 25. screw rod; 26. push plate; 27. shaft column; 28. second bevel gear; 29. ​​gear ring; 30. gear plate; 31. sink; 32. guide rod; 33. slide rod; 34. slide rail; 35. clamping plate; 36. two-way screw; 37. gear cylinder; 38. gear rod; 39. drawer; 40. groove; 41. round hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference Figure 1-Figure 9 A blanking device for cold-bent steel production includes a base 1, an L-shaped vertical frame 2 is fixed on the top of the base 1, a downward hydraulic cylinder 3 is fixed on the top of the vertical frame 2, the output shaft of the hydraulic cylinder 3 is connected to a fixed frame 4, a blanking head 5 is fixed at the bottom of the fixed frame 4, a blanking die 6 is installed on the top of the base 1 and is located directly below the blanking head 5, a drawer 39 is inserted at the front end of the base 1, a water tank 8 is fixed on the front end surface of the vertical frame 2, and a hose 9 is connected to the water inlet and outlet pipes of the water tank 8, a cooling box 7 is fixed on the top of the blanking head 5, and the other end of the two hoses 9 The ends are respectively connected to the water inlet pipe and the water outlet pipe of the cooling box 7, and the water inlet pipe and the water outlet pipe of the cooling box 7 are respectively installed with a one-way valve 16. A reflux component is provided in the cooling box 7. The parts to be punched are placed on the punching die 6, and then the hydraulic cylinder 3 is started. The output shaft of the hydraulic cylinder 3 drives the fixed frame 4 and the punching head 5 to move downward to punch the parts. The waste after punching falls into the drawer 39 and is collected. The reflux component will drive the water in the cooling box 7 and the water tank 8 to circulate through the two hoses 9, thereby cooling the punching head 5.

[0033] In Example 1, the reflux assembly includes a push block 10, and a gap is left between the top of the push block 10 and the inner wall of the top wall of the cooling box 7, and an elastic connection is formed between the push block 10 and the punching head 5. A vertical rod 11 is inserted on the top of the cooling box 7, and the bottom end of the vertical rod 11 abuts against the inclined surface of the push block 10. The front end surface of the vertical frame 2 is fixed with a limiting rod 12 located above the vertical rod 11. When the punching head 5 is reset and moves upward, the vertical rod 11 contacts the limiting rod 12 and moves downward, and then the vertical rod 11 pushes the push block 10 to the right through the action of the inclined surface, and the push block 10 will push the water in the cooling box 7 into the water tank 8 through the hose 9 on the right, and the water in the water tank 8 will flow into the cooling box 7 through the hose 9 on the left. Since there is a gap at the top of the push block 10, the push block 10 can be reset normally under the action of elastic force.

[0034] Among them, an ear block 13 is fixed on the top of the punching head 5, and a guide column 14 with an end fixed to the push block 10 is inserted on the ear block 13. A spring 15 is sleeved on the guide column 14, and the two ends of the spring 15 are respectively fixedly connected to the push block 10 and the ear block 13, so that the push block 10 can be reset and moved by the elastic force of the spring 15.

[0035] Furthermore, a mounting frame 17 is fixed on the top of the cooling box 7, and the mounting frame 17 is rotatably connected to a downward main shaft 18, and a fan blade 19 is fixed to the bottom end of the main shaft 18. A front-to-back secondary shaft 20 is rotatably connected to the mounting frame 17, and first bevel gears 23 that can mesh with each other are fixedly sleeved on the secondary shaft 20 and the main shaft 18, respectively. A flat gear 21 is also fixedly sleeved on the secondary shaft 20, and a rack 22 meshing with the flat gear 21 is fixed on the vertical rod 11. When the vertical rod 11 moves, it synchronously drives the rack 22 to move, and then the rack 22 will mesh with the flat gear 21 to drive the secondary shaft 20 to rotate, and then the secondary shaft 20 will drive the main shaft 18 and the fan blade 19 to rotate through the meshing transmission of the two first bevel gears 23, so that the cooling box 7 can be cooled, thereby improving the cooling effect of the punching head 5.

[0036] In Example 2, the reflux assembly includes a push plate 26, a gap is left between the top of the push plate 26 and the top inner wall of the cooling box 7, an ear seat 24 is fixed on the top of the punching head 5, a screw rod 25 is rotatably connected to the ear seat 24, and the screw rod 25 is threadedly connected to the push plate 26, and a shaft column 27 is rotatably connected to the rear of the cooling box 7. The adjacent ends of the shaft column 27 and the screw rod 25 are respectively fixedly sleeved with a second bevel gear 28 in meshing connection, and the rear end of the shaft column 27 is fixedly sleeved with a gear ring 29, and the front end surface of the vertical frame 2 is fixed with The toothed plate 30 can be meshed with the gear ring 29. When the cooling box 7 moves to the point where the gear ring 29 and the geared plate 30 are meshed together, the gear ring 29 will drive the shaft column 27 to rotate, and then the shaft column 27 drives the screw rod 25 to rotate through the transmission cooperation of the two second bevel gears 28. Under the action of the screw rod 25, the push plate 26 will push the water in the cooling box 7 into the water tank 8 through the hose 9 on the right. Since there is a gap at the top of the push plate 26, when the screw rod 25 rotates in the opposite direction, the push plate 26 can be reset normally.

[0037] Furthermore, a downward sinking groove 31 is provided on the top of the punching head 5 , so that the cooling water can more deeply contact the position with the highest temperature on the punching head 5 , thereby improving the cooling effect on the punching head 5 .

[0038] Furthermore, a pair of guide rods 32 are fixed on the top of the base 1, and sliding rods 33 are fixed at both ends of the punching head 5. The sliding rods 33 are slidably connected to the guide rods 32. Through the cooperation between the sliding rods 33 and the guide rods 32, the movement process of the punching head 5 can be made more stable, and the force during punching is also more stable.

[0039] Furthermore, a slide rail 34 is fixed on the top of the base 1, and a pair of forward-facing clamping plates 35 are slidably connected in the slide rail 34. The two clamping plates 35 are symmetrically distributed on both sides of the blanking die 6. A bidirectional screw 36 is rotatably connected in the slide rail 34, and the bidirectional screw 36 is threadedly connected to the two clamping plates 35. One end of the bidirectional screw 36 is fixedly sleeved with a gear cylinder 37, and a gear rod 38 is fixed on the slide rod 33 near the side of the gear cylinder 37. The gear rod 38 is meshingly connected with the gear cylinder 37. When the slide rod 33 moves downward, it will synchronously drive the gear rod 38 to move, and then the gear rod 38 will mesh with the gear cylinder 37 to drive the bidirectional screw 36 to rotate, and then the bidirectional screw 36 will drive the two clamping plates 35 to approach each other to clamp the parts, and then the gear rod 38 will be out of meshing with the gear cylinder 37, and the blanking head 5 will continue to move downward for blanking, thereby realizing automatic clamping and loosening of the parts.

[0040] A groove 40 is provided on the top of the base 1, and a circular hole 41 leading to the drawer 39 is provided on the bottom wall of the groove 40. The punching die 6 can be detachably fixed in the groove 40, so that the punching die 6 can be easily replaced separately after the punching die 6 reaches the end of its service life.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blanking device for cold-bent steel production, comprising a base (1), characterized in that: An L-shaped vertical frame (2) is fixed on the top of the base (1), a downwardly facing hydraulic cylinder (3) is fixed on the top of the vertical frame (2), the output shaft of the hydraulic cylinder (3) is connected to a fixed frame (4), a punching head (5) is fixed on the bottom end of the fixed frame (4), a punching die (6) located directly below the punching head (5) is installed on the top of the base (1), a drawer (39) is inserted at the front end of the base (1), a water tank (8) is fixed on the front end surface of the vertical frame (2), a hose (9) is connected to the water inlet pipe and the water outlet pipe of the water tank (8), a cooling box (7) is fixed on the top of the punching head (5), the other ends of the two hoses (9) are respectively connected to the water inlet pipe and the water outlet pipe of the cooling box (7), a one-way valve (16) is respectively installed in the water inlet pipe and the water outlet pipe of the cooling box (7), and a reflux component is arranged in the cooling box (7).

2. A blanking device for cold-bent steel production according to claim 1, characterized in that: The reflux assembly comprises a push block (10), a gap is left between the top end of the push block (10) and the inner wall of the top wall of the cooling box (7), an elastic connection is formed between the push block (10) and the punching head (5), a vertical rod (11) is inserted into the top of the cooling box (7), the bottom end of the vertical rod (11) abuts against the inclined surface of the push block (10), and a limiting rod (12) located above the vertical rod (11) is fixed to the front end surface of the vertical frame (2).

3. A blanking device for cold-bent steel production according to claim 2, characterized in that: An ear block (13) is fixed on the top of the punching head (5), a guide column (14) whose end is fixed to the push block (10) is inserted into the ear block (13), a spring (15) is sleeved on the guide column (14), and two ends of the spring (15) are respectively fixedly connected to the push block (10) and the ear block (13).

4. A blanking device for cold-bent steel production according to claim 2, characterized in that: A mounting frame (17) is fixed on the top of the cooling box (7), the mounting frame (17) is rotatably connected to a main shaft (18) facing downward, a fan blade (19) is fixed to the bottom end of the main shaft (18), a secondary shaft (20) facing forward and backward is rotatably connected to the mounting frame (17), a first bevel gear (23) that can mesh with each other is fixedly sleeved on the secondary shaft (20) and the main shaft (18), a spur gear (21) is also fixedly sleeved on the secondary shaft (20), and a rack (22) meshingly connected to the spur gear (21) is fixedly mounted on the vertical rod (11).

5. The blanking device for cold-bent steel production according to claim 1, characterized in that: The reflux assembly comprises a push plate (26), a gap is left between the top of the push plate (26) and the top inner wall of the cooling box (7), an ear seat (24) is fixed on the top of the punching head (5), a screw rod (25) is rotatably connected to the ear seat (24), the screw rod (25) is threadedly connected to the push plate (26), a shaft column (27) is rotatably connected to the rear of the cooling box (7), the adjacent ends of the shaft column (27) and the screw rod (25) are respectively fixedly sleeved with a second bevel gear (28) meshingly connected, the rear end of the shaft column (27) is fixedly sleeved with a gear ring (29), and the front end surface of the vertical frame (2) is fixed with a toothed plate (30) that can mesh with the gear ring (29).

6. A blanking device for cold-bent steel production according to claim 1, characterized in that: The top of the punching head (5) is provided with a downwardly directed sinking groove (31).

7. A blanking device for cold-bent steel production according to claim 1, characterized in that: A pair of guide rods (32) are fixed on the top of the base (1), and sliding rods (33) are fixed on both ends of the punching head (5), and the sliding rods (33) are slidably connected to the guide rods (32).

8. A blanking device for cold-bent steel production according to claim 7, characterized in that: A slide rail (34) is fixed on the top of the base (1), a pair of forward clamping plates (35) are slidably connected in the slide rail (34), the two clamping plates (35) are symmetrically distributed on both sides of the punching die (6), a bidirectional screw (36) is rotatably connected in the slide rail (34), the bidirectional screw (36) is threadedly connected to the two clamping plates (35), one end of the bidirectional screw (36) is fixedly sleeved with a gear cylinder (37), a gear rod (38) is fixed on the slide rod (33) close to the side of the gear cylinder (37), and the gear rod (38) is meshingly connected with the gear cylinder (37).

9. The blanking device for cold-bent steel production according to claim 1, characterized in that: The top of the base (1) is provided with a groove (40), the bottom wall of the groove (40) is provided with a round hole (41) leading to the drawer (39), and the punching die (6) is detachably fixed in the groove (40).

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