A steel wire shot cutting machine

Abstract

The present invention discloses a steel wire shot cutting machine, which relates to the technical field of steel wire shot cutting. In order to solve the consistency problem, the machine specifically comprises a frame and a platform fixed on the inner side of the frame, wherein a conveying part for conveying steel wire is arranged on the inner side of the frame, a knife holder is connected to the longitudinal sliding of the frame, a cutter 1 and a cutter 2 for mutually cooperating to cut the steel wire are arranged on the bottom of the knife holder and the top of one side of the platform, respectively, a linkage mechanism for cooperating the conveying part with the knife holder is arranged on one side of the frame, and a lifting driving part for lifting and lowering the knife holder is arranged on the inner side of the frame. The present invention sets a linkage mechanism, which can use the limiting of the convex column and the telescopic limiting rod to rotate the shaft 2 during the reset stroke after the knife holder descends for cutting, thereby realizing steel wire conveying, so that the cutting and conveying are mutually matched, purely mechanically controlled, without delay, and the consistency of the cut pellets is increased.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire cut shot, in particular to a steel wire cut shot machine. Background Art

[0002] The steel wire shot cutting machine cuts the steel wire strips at high frequency to form small cylinders, that is, pills. These pill-shaped steel bars will then be used in shot peening, polishing, shot peening and rust removal.

[0003] In the prior art, the steel wire shot cutting machine is mainly composed of two core parts: a steel wire conveying mechanism and a high-frequency cutting mechanism. In order to prevent the steel wire from bending due to the straight conveying of the steel wire during cutting, the conveying needs to be stopped during the cutting process. This requires algorithm control for the conveying part and the cutting part. The algorithm control has a delay and depends on the performance of the processor or the host computer. Once the two cannot match well, the particle size of the cut shot will be different and the quality of the finished product will be poor.

[0004] Therefore, in order to achieve synchronous matching of conveying and cutting without delay, the present invention proposes a steel wire shot cutting machine. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a steel wire shot cutting machine.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A steel wire shot cutting machine comprises a frame and a platform fixed inside the frame. A conveying part for conveying the steel wire is arranged on the inner side of the frame, a knife holder is connected to the frame in a longitudinal sliding manner, a cutter 1 and a cutter 2 for mutually cooperating to cut the steel wire are arranged on the bottom of the knife holder and the top of one side of the platform respectively, a linkage mechanism for cooperating the conveying part with the knife holder is arranged on one side of the frame, and a lifting driving part for lifting and lowering the knife holder is arranged on the inner side of the frame; The conveying part is composed of a plurality of supporting guide wheels and conveying wheels that cooperate with each other, the conveying wheels are rotatably connected to the frame through the second shaft, and the supporting guide wheels are connected to the frame through the first shaft; The linkage mechanism comprises a one-way ratchet fixed to the outer wall of the second shaft and a convex column fixed to the side wall of the tool holder.

[0007] Preferably: a fixed threaded rod and a return rod are fixed to the side walls of the one-way ratchet respectively, a telescopic limit rod is threadedly connected to the outer wall of the fixed threaded rod, and a locking nut is threadedly connected to the outer wall of the fixed threaded rod, and the telescopic limit rod and the return rod are both limited by the convex column.

[0008] Furthermore: the inner wall of the supporting guide wheel is provided with a groove with a "V"-shaped cross-section, and the outer contour of the conveying wheel matches the "V"-shaped groove.

[0009] On the basis of the above scheme: the two sides of the shaft one are rotatably connected with sliders, the sliders are slidably connected to the frame through guide rods, and the inner wall of the slider is connected with a screw rod through threads, and the screw rod is rotatably connected to the frame.

[0010] A better solution in the above-mentioned solution is: the lifting drive part includes an eccentric wheel and an eccentric frame, the eccentric wheel is rotatably connected to the inner wall of the frame through the main shaft, the eccentric frame is rotatably connected to the outer wall of the eccentric wheel, and the end of the eccentric frame is rotatably connected to the top outer wall of the tool holder.

[0011] As a further solution of the present invention: the side wall of the tool holder is slidably connected with a pressure plate via a T-rod, and a spring 1 is buckled on the opposite side of the pressure plate and the tool holder.

[0012] At the same time, the lifting drive unit also includes a motor fixed to the side wall of the frame through a motor frame, and the output shaft of the motor is matched with the main shaft through a transmission assembly.

[0013] As a preferred embodiment of the present invention: the transmission assembly includes a driving plate, a transmission plate and a movable plate, the movable plate and the transmission plate are fixedly connected by a connecting rod, the driving plate is slidably connected to the outer wall of the connecting rod, the outer wall of the main shaft is provided with a key-shaped groove, the inner side of the movable plate is provided with a key-shaped protrusion that matches the key-shaped groove clearance, the inner side of the output shaft of the motor is connected with a plurality of arc head protrusions 2 through springs 4, the inner side of the transmission plate is provided with a transmission groove that matches the arc head protrusions 2 in a limiting manner, the driving plate is connected to the outer wall of the output shaft of the motor by a thread, and the driving plate and the transmission plate are buckled with springs 4 on the opposite side.

[0014] At the same time, the main shaft is radially slidably connected with an arc head protrusion 1, and the arc head protrusion 1 is connected to the inner wall of the main shaft through a spring 3.

[0015] As a better solution of the present invention: the outer wall of the movable disk is rotatably connected to the limit disk, the side wall of the frame is fixed with a U-shaped frame by bolts, and the inner walls on both sides of the U-shaped frame are fixed with switches that cooperate with the limit disk, the two switches are connected in parallel to the power supply circuit of the motor, and the two switches respectively control the forward rotation and reverse rotation of the motor.

[0016] The beneficial effects of the present invention are: 1. The present invention sets a linkage mechanism, which can use the limiting of the convex column and the telescopic limiting rod to rotate the second shaft when the knife holder descends and cuts the reset stroke, so as to realize the wire conveying, so that the cutting and conveying are matched with each other, purely mechanical control, no delay, and improve the consistency of the cut pellets.

[0017] 2. The present invention sets a fixed threaded rod, a locking nut and a telescopic limit rod. Since the path interference of the telescopic limit rod on the protruding column depends on the total length of the fixed threaded rod, the locking nut and the telescopic limit rod, the total length can be adjusted by rotating the telescopic limit rod to achieve the cutting adjustment of the length of a single pellet. Moreover, by setting the locking nut, the telescopic limit rod can be reliably locked to increase the accuracy.

[0018] 3. The present invention adjusts the center distance between the support guide wheel and the conveying wheel by setting the support guide wheel and the conveying wheel to be matched in a "V" shape, and then adjusts the position of the slider by a screw rod, so as to adjust the conveying distance in a targeted manner according to the length of the cutting wire.

[0019] 4. The present invention, by providing a pressure plate, can apply downward pressure to the steel wire before the tool holder descends for cutting, thereby cooperating with the carrier to clamp the steel wire, thereby preventing the steel wire from jumping at the moment of cutting and breaking, and increasing the cutting stability.

[0020] 5. The present invention, by setting a transmission component, utilizes the form of "soft connection" to prevent the motor and the main shaft from transmitting when a high-hardness foreign body appears on the steel wire, thereby preventing the motor from burning out. At the same time, the displacement and wiring method are cleverly utilized to control the direction of the motor, so that when stuck, the direction can be switched to transport the steel wire forward until the foreign body is detached, thereby realizing the function of automatic escape, and the entire process does not require manual or electronic control algorithm control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a steel wire shot cutting machine proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the conveying part of a steel wire shot cutting machine proposed by the present invention; Figure 3 A schematic diagram of the linkage structure of a steel wire shot cutting machine proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a slider, a guide rod and a lead screw of a steel wire shot cutting machine proposed by the present invention; Figure 5 This is a schematic diagram of the main shaft, eccentric frame and eccentric wheel structure of a steel wire shot cutting machine proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a motor frame, a motor, and a transmission assembly of a steel wire shot cutting machine proposed by the present invention; Figure 7 A schematic diagram of the transmission assembly structure of a steel wire shot cutting machine proposed by the present invention; Figure 8 This is a schematic diagram of the switch installation position structure of a steel wire shot cutting machine proposed by the present invention; Fig. 9 The present invention provides a circuit diagram of a steel wire shot cutting machine.

[0022] In the figure: 1, frame; 2, conveying part; 3, knife holder; 4, cutter 1; 5, carrier; 6, cutter 2; 7, linkage mechanism; 8, lifting drive part; 9, support guide wheel; 10, shaft 1; 11, shaft 2; 12, conveying wheel; 13, one-way ratchet; 14, fixed threaded rod; 15, locking nut; 16, telescopic limit rod; 17, boss; 18, return rod; 19, slider; 20, guide rod; 21, screw rod; 22, U-shaped frame; 23, switch; 24. Spindle; 25. Eccentric frame; 26. Eccentric wheel; 27. T-bar; 28. Spring 1; 29. ​​Pressure plate; 30. Motor frame; 31. Motor; 32. Transmission assembly; 33. Drive disk; 34. Spring 2; 35. Transmission disk; 36. Transmission groove; 37. Connecting rod; 38. Key-shaped protrusion; 39. Moving disk; 40. Key-shaped groove; 41. Arc head protrusion 1; 42. Spring 3; 43. Arc head protrusion 2; 44. Spring 4; 45. Limit disk. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Embodiment 1: A steel wire shot cutting machine, such as Figure 1-Figure 8 As shown, it includes a frame 1 and a platform 5 fixed on the inner side of the frame 1, the inner side of the frame 1 is provided with a conveying part 2 for conveying the steel wire, the frame 1 is longitudinally slidably connected with a knife holder 3, the bottom of the knife holder 3 and the top of one side of the platform 5 are respectively provided with a cutter 1 4 and a cutter 2 6 that cooperate with each other to cut the steel wire, one side of the frame 1 is provided with a linkage mechanism 7 for cooperating with the conveying part 2 and the knife holder 3, and the inner side of the frame 1 is provided with a lifting drive part 8 for lifting and lowering the knife holder 3.

[0026] The conveying part 2 is composed of a plurality of supporting guide wheels 9 and conveying wheels 12 that cooperate with each other. The conveying wheel 12 is rotatably connected to the frame 1 via the second shaft 11, and the supporting guide wheel 9 is connected to the frame 1 via the first shaft 10.

[0027] The linkage mechanism 7 includes a one-way ratchet 13 fixed to the outer wall of the second shaft 11 and a protruding column 17 fixed to the side wall of the tool holder 3. In this embodiment, the specific type of the one-way ratchet 13 is not limited. It is widely used in bicycles, that is, it can transmit to the chain plate when pedaling forward, but will not transmit when pedaling backward.

[0028] The side walls of the one-way ratchet 13 are respectively fixed with a fixed threaded rod 14 and a return rod 18, the outer wall of the fixed threaded rod 14 is threadedly connected with a telescopic limit rod 16, and the outer wall of the fixed threaded rod 14 is threadedly connected with a locking nut 15, and the telescopic limit rod 16 and the return rod 18 are both limited by the protruding column 17.

[0029] When the device is in use, multiple steel wires can be placed between multiple groups of supporting guide wheels 9 and conveying wheel 12 respectively, and then the lifting and lowering of the knife holder 3 can be controlled by the lifting drive unit 8. When the knife holder 3 descends, on the one hand, it will drive the cutter 1 4 to descend, and cooperate with the cutter 2 6 to cut the steel wire. On the other hand, it will also press down the return rod 18, so that the return rod 18 drives the one-way ratchet 13 to rotate. At this time, the one-way ratchet 13 will not drive the shaft 2 11 to rotate, which is equivalent to pedaling a bicycle backwards. When the one-way ratchet 13 rotates, it will drive the fixed threaded rod 14, the locking nut 15 and the telescopic limit rod 16 to rotate, so that the telescopic limit rod 16 is located on the return path of the protruding column 17. After the cutting is completed, the protruding column 17 rises, and at this time the telescopic limit rod 16 is located in the reset formation of the protruding column 17, so that the telescopic limit rod 16 can be rotated upward. At this time, the one-way ratchet 13 drives the shaft 2 11 to rotate, so that the conveying wheel 12 rotates to convey the steel wire, and the path of a single conveying is related to the length of the telescopic limit rod 16.

[0030] The device is provided with a linkage mechanism 7, which can use the limiting of the convex column 17 and the telescopic limiting rod 16 to rotate the shaft 2 11 when the knife holder 3 descends the reset stroke after cutting, thereby realizing wire conveying, so that the cutting and conveying are matched with each other, purely mechanical control, no delay, and increase the consistency of the cut pellets.

[0031] In addition, the device is provided with a fixed threaded rod 14, a locking nut 15 and a telescopic limit rod 16. Since the path interference of the telescopic limit rod 16 on the protruding column 17 depends on the total length of the fixed threaded rod 14, the locking nut 15 and the telescopic limit rod 16, the total length can be adjusted by rotating the telescopic limit rod 16 to achieve the cutting adjustment of the length of a single pellet, and by providing the locking nut 15, the telescopic limit rod 16 can be reliably locked to increase the accuracy.

[0032] To solve the regulation problem; Figure 2 , 4 As shown, the inner wall of the supporting guide wheel 9 is provided with a groove with a “V”-shaped cross section, and the outer contour of the conveying wheel 12 matches the “V”-shaped groove.

[0033] The two sides of the shaft 10 are rotatably connected with sliders 19, and the sliders 19 are slidably connected to the frame 1 through guide rods 20. The inner wall of the slider 19 is connected with a screw rod 21 through threads, and the screw rod 21 is rotatably connected to the frame 1.

[0034] The device adjusts the center distance between the support guide wheel 9 and the conveying wheel 12 by setting the support guide wheel 9 and the conveying wheel 12 to be matched in a "V" shape, and then adjusts the position of the slider 19 through the screw rod 21, thereby adjusting the center distance between the support guide wheel 9 and the conveying wheel 12, so that the conveying spacing can be specifically adjusted according to the length of the cutting wire.

[0035] In order to solve the lifting drive problem; Figure 5 As shown, the lifting drive unit 8 includes an eccentric wheel 26 and an eccentric frame 25. The eccentric wheel 26 is rotatably connected to the inner wall of the frame 1 through the main shaft 24, and the eccentric frame 25 is rotatably connected to the outer wall of the eccentric wheel 26. The end of the eccentric frame 25 is rotatably connected to the top outer wall of the tool holder 3.

[0036] When the main shaft 24 rotates, it can drive the eccentric frame 25 to move through the eccentric distance, thereby driving the tool holder 3 to rise and fall.

[0037] In order to solve the problem of cutting stability; Figure 5 As shown, the side wall of the tool holder 3 is slidably connected with a pressure plate 29 via a T-rod 27, and a spring 28 is buckled on the pressure plate 29 and the opposite side of the tool holder 3.

[0038] By setting the pressure plate 29, it can apply downward pressure to the steel wire before the tool holder 3 descends for cutting, so as to cooperate with the carrier 5 to clamp the steel wire, thereby preventing the steel wire from jumping at the moment of cutting and breaking, and increasing the cutting stability.

[0039] When the present embodiment is in use, when the main shaft 24 rotates, it can drive the eccentric frame 25 to move through the eccentric distance, thereby driving the knife holder 3 to rise and fall, and multiple steel wires can be placed between multiple groups of support guide wheels 9 and the conveying wheel 12 respectively, and then the lifting and lowering of the knife holder 3 is controlled by the lifting drive unit 8. When the knife holder 3 descends, on the one hand, it will drive the cutter 1 4 to descend, and cooperate with the cutter 2 6 to cut the steel wire. On the other hand, it will also press down the return rod 18, so that the return rod 18 drives the one-way ratchet 13 to rotate. At this time, the one-way ratchet 13 will not drive the shaft 2 11 to rotate, which is equivalent to When the one-way ratchet 13 rotates when pedaling the bicycle backward, it will drive the fixed threaded rod 14, the locking nut 15 and the telescopic limit rod 16 to rotate, so that the telescopic limit rod 16 is located on the return path of the boss 17. After the cutting is completed, the boss 17 rises, and at this time the telescopic limit rod 16 is located in the reset formation of the boss 17, so that the telescopic limit rod 16 can be rotated upward. At this time, the one-way ratchet 13 drives the shaft 2 11 to rotate, so that the conveying wheel 12 rotates to convey the steel wire, and the path of a single conveying is related to the length of the telescopic limit rod 16.

[0040] Embodiment 2: A steel wire shot cutting machine, such as Figure 1-Figure 9As shown, in order to solve the driving problem, this embodiment makes the following improvements on the basis of embodiment 1: the lifting drive unit 8 also includes a motor 31 fixed to the side wall of the frame 1 through a motor frame 30, and the output shaft of the motor 31 is transmitted to the main shaft 24 through a transmission assembly 32.

[0041] The transmission assembly 32 includes a driving disk 33, a transmission disk 35 and a movable disk 39, wherein the movable disk 39 is fixedly connected to the transmission disk 35 via a connecting rod 37, the driving disk 33 is slidably connected to the outer wall of the connecting rod 37, the outer wall of the main shaft 24 is provided with a key-shaped groove 40, the inner side of the movable disk 39 is provided with a key-shaped protrusion 38 which is clearance-matched with the key-shaped groove 40, the inner side of the output shaft of the motor 31 is connected with a plurality of arc head protrusions 43 via springs 44, the inner side of the transmission disk 35 is provided with a transmission groove 36 which is limit-matched with the arc head protrusions 43, the driving disk 33 is threadedly connected to the outer wall of the output shaft of the motor 31, and the opposite side of the driving disk 33 and the transmission disk 35 is buckled with a spring 434.

[0042] The main shaft 24 is radially slidably connected with an arc head protrusion 1 41 , and the arc head protrusion 1 41 is connected to the inner wall of the main shaft 24 through a spring 3 42 .

[0043] The outer wall of the movable plate 39 is rotatably connected to the limit plate 45, and the side wall of the frame 1 is fixed with a U-shaped frame 22 by bolts. The inner walls of the U-shaped frame 22 on both sides are fixed with switches 23 that cooperate with the limit plate 45. The two switches 23 are connected in parallel to the power supply circuit of the motor 31, and the two switches 23 respectively control the forward and reverse rotation of the motor 31, which can be achieved by controlling the wiring method, and using different wiring methods to control the forward and reverse rotation of the motor is a prior art, which will not be described in detail in this embodiment.

[0044] When the present embodiment is in use, when the motor 31 is started, it can drive the second arc head protrusion 43 to rotate, thereby the transmission disk 35 is rotated through the limiting cooperation between the second arc head protrusion 43 and the transmission groove 36, thereby driving the movable disk 39 to rotate through the connecting rod 37, and then driving the main shaft 24 to rotate through the cooperation between the key-shaped protrusion 38 and the key-shaped groove 40. When the cut steel wire is mixed with high-hardness foreign matter and the cutting load exceeds the maximum load of the motor 31, the tool holder 3 will be stuck and unable to descend, thereby making the main shaft 24 unable to rotate. At this time, the axial force of the torque transmission between the second arc head protrusion 43 and the transmission groove 36 on the second arc head protrusion 43 is greater than the elastic force of the spring four 44, thereby causing the second arc head protrusion 43 to contract inwardly, and the output shaft of the motor 31 is not in contact with the transmission disk 35. The transmission causes the driving disk 33 and the output shaft of the motor 31 to rotate relative to each other, and the driving disk 33 is moved axially by the threaded connection, so that the spring 2 34 applies an elastic force to the transmission disk 35 until the elastic force applied is greater than the limiting force of the arc head protrusion 1 41 on the key-shaped protrusion 38, and the movable disk 39 moves to the other side of the arc head protrusion 1 41, thereby driving the limit disk 45 to move, so that the limit disk 45 releases one of the switches 23 and squeezes the other switch 23, so that the motor 31 rotates in the opposite direction. During the reverse rotation, the steel wire will be conveyed a length. If the size of the high-hardness foreign object is greater than a conveying length, the knife holder 3 will continue to be stuck when descending, and the motor 31 switches the direction again until the hard object is completely conveyed to achieve continued cutting.

[0045] The device, by setting up a transmission component 32, can use the form of "soft connection" to prevent the motor 31 and the main shaft 24 from transmitting when a high-hardness foreign body appears on the steel wire, thereby preventing the motor 31 from burning out. At the same time, the displacement and wiring method are cleverly used to control the direction of the motor 31, so that when it is stuck, the direction can be switched to transport the steel wire forward until the foreign body is detached, thereby realizing the function of automatic escape, and the whole process does not require manual or electronic control algorithm control.

[0046] 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 steel wire shot cutting machine, comprising a frame (1) and a carrier (5) fixed to the inner side of the frame (1), characterized in that: A conveying portion (2) for conveying the steel wire is arranged on the inner side of the frame (1); a knife holder (3) is connected to the frame (1) in a longitudinal sliding manner; a first cutter (4) and a second cutter (6) for cooperating with each other to cut the steel wire are arranged at the bottom of the knife holder (3) and the top of one side of the carrier (5); a linkage mechanism (7) for cooperating the conveying portion (2) with the knife holder (3) is arranged on one side of the frame (1); and a lifting drive portion (8) for lifting and lowering the knife holder (3) is arranged on the inner side of the frame (1); The conveying part (2) is composed of a plurality of supporting guide wheels (9) and conveying wheels (12) that cooperate with each other, the conveying wheels (12) are rotatably connected to the frame (1) via a second shaft (11), and the supporting guide wheels (9) are connected to the frame (1) via a first shaft (10); The linkage mechanism (7) comprises a one-way ratchet (13) fixed to the outer wall of the second shaft (11) and a protruding column (17) fixed to the side wall of the tool holder (3).

2. A steel wire cutting machine according to claim 1, characterized in that: A fixed threaded rod (14) and a return rod (18) are fixed to the side walls of the one-way ratchet (13), respectively; a telescopic limit rod (16) is threadedly connected to the outer wall of the fixed threaded rod (14), and a locking nut (15) is threadedly connected to the outer wall of the fixed threaded rod (14); the telescopic limit rod (16) and the return rod (18) are both limitedly matched with the protruding column (17).

3. The steel wire cutting machine according to claim 1, characterized in that: The inner wall of the support guide wheel (9) is provided with a groove with a V-shaped cross section, and the outer contour of the conveying wheel (12) matches the V-shaped groove.

4. A steel wire cutting machine according to claim 3, characterized in that: Slide blocks (19) are rotatably connected to both sides of the shaft (10); the slide blocks (19) are slidably connected to the frame (1) via guide rods (20); and the inner wall of the slide blocks (19) is threadably connected to a screw rod (21); the screw rod (21) is rotatably connected to the frame (1).

5. The steel wire cutting machine according to claim 1, characterized in that: The lifting drive unit (8) comprises an eccentric wheel (26) and an eccentric frame (25); the eccentric wheel (26) is rotatably connected to the inner wall of the frame (1) via a main shaft (24); the eccentric frame (25) is rotatably connected to the outer wall of the eccentric wheel (26); and the end of the eccentric frame (25) is rotatably connected to the top outer wall of the tool holder (3).

6. A steel wire cutting machine according to claim 1, characterized in that: The side wall of the tool holder (3) is slidably connected to a pressure plate (29) via a T-rod (27), and a spring 1 (28) is buckled on the side opposite to the tool holder (3).

7. The steel wire cutting machine according to claim 5, characterized in that: The lifting drive unit (8) further comprises a motor (31) fixed to the side wall of the frame (1) via a motor frame (30), and an output shaft of the motor (31) is coupled to the main shaft (24) via a transmission assembly (32).

8. The steel wire cutting machine according to claim 7, characterized in that: The transmission assembly (32) comprises a driving disk (33), a transmission disk (35) and a moving disk (39); the moving disk (39) and the transmission disk (35) are fixedly connected via a connecting rod (37); the driving disk (33) is slidably connected to the outer wall of the connecting rod (37); a key-shaped groove (40) is provided on the outer wall of the main shaft (24); a key-shaped protrusion (38) that is clearance-matched with the key-shaped groove (40) is provided on the inner side of the moving disk (39); a plurality of arc-head protrusions (43) are connected to the inner side of the output shaft of the motor (31) via springs (44); a transmission groove (36) that is position-limitedly matched with the arc-head protrusions (43) is provided on the inner side of the transmission disk (35); the driving disk (33) is connected to the outer wall of the output shaft of the motor (31) via threads; and springs (34) are buckled on the opposite sides of the driving disk (33) and the transmission disk (35).

9. A steel wire cutting and shot blasting machine according to claim 8, characterized in that: The main shaft (24) is radially slidably connected with an arc head protrusion 1 (41), and the arc head protrusion 1 (41) is connected to the inner wall of the main shaft (24) via a spring 3 (42).

10. A steel wire cutting machine according to claim 9, characterized in that: The outer wall of the movable plate (39) is rotatably connected to the limit plate (45); a U-shaped frame (22) is fixed to the side wall of the frame (1) by bolts; switches (23) cooperating with the limit plate (45) are fixed to the inner walls of both sides of the U-shaped frame (22); the two switches (23) are connected in parallel to the power supply circuit of the motor (31), and the two switches (23) respectively control the forward rotation and reverse rotation of the motor (31).

Images