Stamping and bending equipment for arc striking sheet

Abstract

The utility model relates to the technical field of circuit breaker thermal assembly production, in particular to an arc striking sheet stamping and bending device which comprises a machine table, a discharging mechanism, a leveling mechanism and a feeding mechanism are arranged at the upper end of the machine table, and the feeding mechanism is used for conveying leveled arc striking sheet strips into a stamping mechanism. The bending mechanism is used for bending the stamped arc striking sheet; according to the utility model, firstly, the arc striking sheet strip coil is placed on the unwinding roller, the elastic force of the torsional spring is utilized to enable the connecting shaft to rotate, the rotation of the connecting shaft is transmitted through the gear to further drive one end of the rack to move, and the movement of the rack causes the wedge block to be pushed out of the chute, so that the arc striking sheet strip coil is fixed; the connecting shaft is rotated to drive the gear to rotate, the rotation of the gear enables the wedge-shaped block to retract into the sliding groove through the movement of the rack, and the retraction of the wedge-shaped block enables the fixation of the arc striking sheet strip material coil to be released, so that the material coil can be easily taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of the production of thermal components of circuit breakers, in particular to an arc guide sheet stamping and bending device. Background Art

[0002] Arc guide sheets are commonly used in circuit breakers. Their main function is to control the generation and diffusion of electric arcs when opening or closing the circuit breaker. Since electric arcs are generated during the switching process, if the electric arcs cannot be effectively controlled, it will cause equipment damage or safety hazards. The arc guide sheet ensures that the electric arc extinguishes at the appropriate time and position by controlling the generation and conduction of the electric arc, thereby reducing damage and extending the service life of the circuit breaker. Arc guide sheets are usually made of heat-resistant materials and can withstand high temperatures and high pressures.

[0003] Arc guide sheets need to be produced by a stamping and bending device. For example, a Chinese patent publication number "CN210754490U" discloses an arc guide sheet stamping and bending device, which includes a frame, a bending mechanism arranged on the frame, a feeding mechanism arranged at the outer end of the bending mechanism, a stamping mechanism arranged at the outer end of the feeding mechanism, and an arc guide sheet unwinder arranged at the outer end of the stamping mechanism. The arc guide sheet unwinder unwinds the arc guide sheet strip coil, the stamping mechanism stamps the arc guide sheet strip into connected planar arc guide sheets, and the feeding mechanism forwards the stamped planar arc guide sheets to the bending mechanism.

[0004] Currently, when most arc guide sheet unwinders install the strip coil, bolts and nuts are used for fixation. This method requires tightening the bolts and nuts one by one, which not only consumes time and reduces production efficiency, but also when the coil needs to be frequently replaced, the repeated tightening and loosening actions will increase the labor burden of workers and make the operation less convenient. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem of inconvenient coil replacement in the prior art, and to propose an arc guide sheet stamping and bending device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design an arc guide sheet stamping and bending device, which includes a machine table. A feeding mechanism, a leveling mechanism and a feeding mechanism are respectively arranged at the upper end of the machine table. A stamping mechanism and a bending mechanism are sequentially arranged on the right side of the machine table. The feeding mechanism is used to place the arc guide sheet strip coil, the leveling mechanism is used to level the arc guide sheet strip, the feeding mechanism is used to convey the leveled arc guide sheet strip into the stamping mechanism, and the bending mechanism is used to bend the stamped arc guide sheet.

[0008] The feeding mechanism includes a bracket. One side of the bracket is rotatably connected with a unwind roll for placing the arc-striking strip coil. An installation hole is arranged at one end of the unwind roll, and a fixing mechanism is arranged in the installation hole for fixing the arc-striking strip coil.

[0009] Further, the fixing mechanism includes a connecting shaft rotatably connected with the installation hole. At least two sliding grooves are symmetrically arranged on the surface of the unwind roll, and the sliding grooves communicate with the installation hole. A wedge block is slidably connected in the sliding groove. One end of the wedge block is fixedly connected with a rack, and a gear is fixedly connected to the surface of the connecting shaft. The gear is meshed with the rack, and a torsion spring is also arranged on the surface of the connecting shaft.

[0010] Further, the leveling mechanism includes a fixing plate. At least three guide wheels are rotatably connected to one side of the fixing plate. The guide wheels are horizontally placed. An installation groove is arranged on one side of the fixing plate, and a connecting block is slidably connected in the installation groove. Two pressing wheels are rotatably connected to one side of the connecting block.

[0011] Further, a screw rod is rotatably connected in the installation groove. The screw rod is threadedly connected with the connecting block. One end of the screw rod passes through the installation groove and is fixedly connected with a knob at the end.

[0012] Further, the feeding mechanism includes an installation plate. Four rotating shafts are rotatably connected to one side of the installation plate. A pulley is fixedly connected to each rotating shaft. The adjacent two pulleys are driven by a synchronous belt. Three of the rotating shafts pass through the installation plate and are respectively provided with a first gear, a second gear and a third gear at the ends. The first gear is meshed with the second gear. A motor is arranged at the upper end of the machine table, and a special-shaped gear is arranged at the shaft end of the motor. The special-shaped gear is meshed with the third gear.

[0013] Further, a plurality of installation frames are fixedly connected to the surface of the synchronous belt. An extrusion block is slidably connected in the installation frame, and an elastic sheet is fixedly connected in the installation frame. One end of the elastic sheet is in contact with the extrusion block.

[0014] For the arc-striking strip stamping and bending equipment proposed by the present utility model, the beneficial effects are as follows: In the present utility model, first place the arc-striking strip coil on the unwind roll. By the elastic force of the torsion spring, the connecting shaft rotates. The rotation of the connecting shaft is transmitted through the gear, and then drives the movement of one end of the rack. The movement of the rack causes the wedge block to be pushed out of the sliding groove, thereby fixing the arc-striking strip coil. When it is necessary to disassemble the arc-striking strip coil, by rotating the connecting shaft, the rotation of the connecting shaft drives the gear to rotate again. The rotation of the gear causes the wedge block to retract into the sliding groove through the movement of the rack. The retraction of the wedge block releases the fixation of the arc-striking strip coil, so that the coil can be easily taken out;

[0015] Secondly, in the present utility model, the arc striking piece strip passes through between two synchronous belts. The special-shaped gear is rotated by a motor. Since the special-shaped gear is meshed and connected with the third gear, and since the synchronous belt is fixed on the belt pulley, the rotation of the belt pulley causes the synchronous belt to rotate intermittently, and thus intermittent feeding of the arc striking piece strip can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the material feeding mechanism of the present utility model;

[0018] Figure 3 of the present utility model Figure 2 is an enlarged structural schematic diagram of Area A;

[0019] Figure 4 of the present utility model Figure 2 is an enlarged structural schematic diagram of Area B;

[0020] Figure 5 of the present utility model Figure 2 is an enlarged structural schematic diagram of Area C;

[0021] Figure 6 is a structural schematic diagram of the feeding mechanism of the present utility model.

[0022] In the figure: 1, machine table; 11, stamping mechanism; 12, bending mechanism; 2, material feeding mechanism; 21, bracket; 22, unwind roller; 23, fixing mechanism; 231, connecting shaft; 232, wedge block; 233, rack; 234, gear; 3, leveling mechanism; 31, fixing plate; 32, guide wheel; 33, installation groove; 34, connecting block; 35, pressing wheel; 36, screw; 37, knob; 4, feeding mechanism; 41, mounting plate; 42, rotating shaft; 43, belt pulley; 44, synchronous belt; 441, mounting frame; 442, extrusion block; 443, elastic sheet; 45, first gear; 46, second gear; 47, third gear; 48, motor; 49, special-shaped gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] 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.

[0024] Refer to Figures 1-6, An arc starting piece stamping and bending device, including a machine table 1. A feeding mechanism 2, a leveling mechanism 3 and a material feeding mechanism 4 are respectively arranged at the upper end of the machine table 1. A stamping mechanism 11 and a bending mechanism 12 are sequentially arranged on the right side of the machine table 1. The feeding mechanism 2 is used to place the arc starting piece strip coil. The leveling mechanism 3 is used to level the arc starting piece strip. The material feeding mechanism 4 is used to convey the leveled arc starting piece strip into the stamping mechanism 11. The bending mechanism 12 is used to bend the arc starting piece after stamping. In the present utility model, first place the arc starting piece strip coil on the feeding mechanism 2, level the arc starting piece strip through the leveling mechanism 3, and then the material feeding mechanism 4 is responsible for feeding the leveled arc starting piece strip into the stamping mechanism 11. The stamped arc starting piece is bent at the bending mechanism 12 to complete the preparation process of the arc starting piece;

[0025] The feeding mechanism 2 includes a bracket 21. A winding roller 22 is rotatably connected to one side of the bracket 21. The winding roller 22 is used to place the arc starting piece strip coil. An installation hole is arranged at one end of the winding roller 22. A fixing mechanism 23 is arranged in the installation hole. The fixing mechanism 23 is used to fix the arc starting piece strip coil. In the present utility model, through the fixing mechanism 23, the installation and disassembly process of the arc starting piece strip coil becomes convenient, thus simplifying the cumbersome steps of traditional use of bolts and nuts, and improving the operation efficiency and convenience.

[0026] Further, the fixing mechanism 23 includes a connecting shaft 231. The connecting shaft 231 is rotatably connected to the installation hole. At least two sliding grooves are symmetrically arranged on the surface of the winding roller 22. The sliding grooves are communicated with the installation hole. A wedge block 232 is slidably connected in the sliding grooves. One end of the wedge block 232 is fixedly connected with a rack 233. A gear 234 is fixedly connected to the surface of the connecting shaft 231. The gear 234 is meshed with the rack 233. A torsion spring is also arranged on the surface of the connecting shaft 231. In the present utility model, first place the arc starting piece strip coil on the winding roller 22. Utilize the elastic force of the torsion spring to make the connecting shaft 231 rotate. The rotation of the connecting shaft 231 is transmitted through the gear 234, and then drives one end of the rack 233 to move. The movement of the rack causes the wedge block 232 to be pushed out of the sliding groove, thereby fixing the arc starting piece strip coil. When it is necessary to disassemble the arc starting piece strip coil, by rotating the connecting shaft 231, the rotation of the connecting shaft 231 drives the gear 234 to rotate again. The rotation of the gear 234 moves through the rack 233, causing the wedge block 232 to retract into the sliding groove. The retraction of the wedge block 232 releases the fixation of the arc starting piece strip coil, so that the coil can be easily taken out.

[0027] Furthermore, the leveling mechanism 3 includes a fixing plate 31. On one side of the fixing plate 31, at least three guide wheels 32 are rotatably connected. The guide wheels 32 are horizontally placed. An installation groove 33 is provided on one side of the fixing plate 31. A connecting block 34 is slidably connected in the installation groove 33. Two pressing wheels 35 are rotatably connected to one side of the connecting block 34. In the present utility model, by horizontally placing the guide wheels 32, it is used to guide the movement of the arc starting sheet strip material during the leveling process, ensuring that the material passes through the leveling mechanism smoothly and steadily. The pressing wheels 35 are used to apply pressure to the arc starting sheet strip material to ensure that the material remains flat during the leveling process and eliminate curling or wavy deformation.

[0028] Among them, a screw 36 is rotatably connected in the installation groove 33. The screw 36 is threadedly connected to the connecting block 34. One end of the screw 36 passes through the installation groove 33 and is fixedly connected with a knob 37 at the end. In the present utility model, by rotating the screw 36, the position of the connecting block 34 can be adjusted, so that the pressure of the pressing wheels 35 on the arc starting sheet strip material can be accurately controlled.

[0029] In addition, the feeding mechanism 4 includes a mounting plate 41. Four rotating shafts 42 are rotatably connected to one side of the mounting plate 41. A pulley 43 is fixedly connected to each rotating shaft 42. The adjacent two pulleys 43 are driven by a synchronous belt 44. Three of the rotating shafts 42 pass through the mounting plate 41 and are respectively provided with a first gear 45, a second gear 46 and a third gear 47 at the ends. The first gear 45 is meshed and connected with the second gear 46. An electric motor 48 is arranged at the upper end of the machine table 1. An irregular gear 49 is arranged at the shaft end of the electric motor 48. The irregular gear 49 is meshed and connected with the third gear 47. In the present utility model, the arc starting sheet strip material passes through between the two synchronous belts 44. The electric motor 48 drives the irregular gear 49 to rotate. Since the irregular gear 49 is meshed and connected with the third gear 47, and since the synchronous belt 44 is fixed on the pulley 43, the rotation of the pulley 43 makes the synchronous belt 44 rotate intermittently, and thus the arc starting sheet strip material can be fed intermittently.

[0030] Moreover, a plurality of mounting frames 441 are fixedly connected to the surface of the synchronous belt 44. A pressing block 442 is slidably connected in the mounting frame 441. An elastic sheet 443 is fixedly connected in the mounting frame 441. One end of the elastic sheet 443 is in contact with the pressing block 442. In the present utility model, when the synchronous belt 44 rotates, the pressing block 442 installed in the frame 441 is under a stable pressure through the elasticity control of the elastic sheet 443. The elastic sheet 443 pushes the pressing block 442 to slide in the mounting frame 441, so as to apply a stable pressure to the strip material of the arc starting sheet, which ensures that the strip material remains stable during the feeding process and avoids the occurrence of slipping or displacement.

[0031] Working mode; during operation, first place the arc-starting strip coil on the unwinding roller 22. Utilize the elastic force of the torsion spring to make the connecting shaft 231 rotate. The rotation of the connecting shaft 231 is transmitted through the gear 234, and then drives one end of the rack 233 to move. The movement of the rack causes the wedge block 232 to be pushed out of the chute, thereby fixing the arc-starting strip coil. When it is necessary to disassemble the arc-starting strip coil, by rotating the connecting shaft 231, the rotation of the connecting shaft 231 drives the gear 234 to rotate again. The rotation of the gear 234 causes the wedge block 232 to retract into the chute through the movement of the rack 233. The retraction of the wedge block 232 releases the fixation of the arc-starting strip coil, so that the coil can be easily taken out. It is horizontally placed through the guide wheel 32 to guide the movement of the arc-starting strip during the flattening process, ensuring that the material passes through the flattening mechanism smoothly and steadily. By rotating the screw 36, the position of the connecting block 34 can be adjusted, so that the pressure of the pressure roller 35 on the arc-starting strip can be accurately controlled. The pressure roller 35 is used to apply pressure to the arc-starting strip to ensure that the material remains flat during the flattening process and eliminate curling or wavy deformation. Subsequently, the arc-starting strip passes through between the two synchronous belts 44. The special-shaped gear 49 is driven to rotate by the motor 48. Since the special-shaped gear 49 is meshed and connected with the third gear 47, and since the synchronous belt 44 is fixed on the pulley 43, the rotation of the pulley 43 causes the synchronous belt 44 to achieve intermittent rotation, and thus can intermittently feed the arc-starting strip. When the synchronous belt 44 rotates, the extrusion block 442 installed in the frame 441 is under stable pressure through the elastic control of the elastic sheet 443. The elastic sheet 443 pushes the extrusion block 442 to slide in the installation frame 441, thereby applying a stable pressure to the strip of the arc-starting sheet. This ensures that the strip remains stable during the feeding process and avoids slipping or displacement. It is fed into the stamping mechanism 11, and the stamped arc-starting sheet is bent at the bending mechanism 12 to complete the preparation process of the arc-starting sheet.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An arc striking piece stamping and bending device, comprising a machine table (1), characterized in that: At the upper end of the machine table (1), a feeding mechanism (2), a flattening mechanism (3) and a material feeding mechanism (4) are respectively arranged. On the right side of the machine table (1), a stamping mechanism (11) and a bending mechanism (12) are arranged in sequence. The feeding mechanism (2) is used for placing the arc striking piece strip coil. The flattening mechanism (3) is used for flattening the arc striking piece strip. The material feeding mechanism (4) is used for conveying the flattened arc striking piece strip into the stamping mechanism (11). The bending mechanism (12) is used for bending the arc striking piece after stamping; The feeding mechanism (2) includes a bracket (21). One side of the bracket (21) is rotatably connected with a pay-off reel (22). The pay-off reel (22) is used for placing the arc striking piece strip coil. An installation hole is arranged at one end of the pay-off reel (22). A fixing mechanism (23) is arranged in the installation hole. The fixing mechanism (23) is used for fixing the arc striking piece strip coil.

2. The arc striking piece stamping and bending equipment according to claim 1, characterized in that: The fixing mechanism (23) includes a connecting shaft (231). The connecting shaft (231) is rotatably connected with the installation hole. At least two sliding grooves are symmetrically arranged on the surface of the pay-off reel (22). The sliding grooves are communicated with the installation hole. A wedge block (232) is slidably connected in the sliding grooves. One end of the wedge block (232) is fixedly connected with a rack (233). A gear (234) is fixedly connected to the surface of the connecting shaft (231). The gear (234) is meshed with the rack (233). A torsion spring is also arranged on the surface of the connecting shaft (231).

3. The arc striking piece stamping and bending equipment according to claim 1, characterized in that: The flattening mechanism (3) includes a fixing plate (31). On one side of the fixing plate (31), at least three guide wheels (32) are rotatably connected. The guide wheels (32) are horizontally placed. An installation groove (33) is arranged on one side of the fixing plate (31). A connecting block (34) is slidably connected in the installation groove (33). Two pressure wheels (35) are rotatably connected to one side of the connecting block (34).

4. An arc starting piece stamping and bending device according to claim 3, characterized in that: A screw rod (36) is rotatably connected in the installation groove (33). The screw rod (36) is threadedly connected with the connecting block (34). One end of the screw rod (36) passes through the installation groove (33) and is fixedly connected with a knob (37) at the end.

5. The arc ignition piece stamping and bending equipment according to claim 1, characterized in that: The material feeding mechanism (4) includes a mounting plate (41). On one side of the mounting plate (41), four rotating shafts (42) are rotatably connected. A pulley (43) is fixedly connected to each rotating shaft (42). The adjacent two pulleys (43) are driven by a synchronous belt (44). Three rotating shafts (42) pass through the mounting plate (41) and are respectively provided with a first gear (45), a second gear (46) and a third gear (47) at the ends. The first gear (45) is meshed with the second gear (46). A motor (48) is arranged at the upper end of the machine table (1). A special-shaped gear (49) is arranged at the shaft end of the motor (48). The special-shaped gear (49) is meshed with the third gear (47).

6. The arc striking piece stamping and bending equipment according to claim 5, characterized in that: A plurality of mounting frames (441) are fixedly connected to the surface of the synchronous belt (44). A pressing block (442) is slidably connected in the mounting frame (441). An elastic sheet (443) is fixedly connected in the mounting frame (441). One end of the elastic sheet (443) is in contact with the pressing block (442).

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