Coil winding machine for current transformer production

Abstract

The invention discloses a coil winding machine for current transformer production, and relates to the technical field of current transformer production. According to the coil winding machine for current transformer production, when winding operation is conducted on a winding roller, a pressing spring and a pressing roller are arranged, so that during winding operation, the pressing roller can press a copper wire, and the copper wire can be tightly pressed; the phenomenon that a copper wire is loosened on the winding roller can be prevented, when the number of windings reaches the needed number, the pressing roller moves upwards, the limiting block is moved out of the circular ring through cooperation of the bending block and the limiting block, limiting on the circular ring can be relieved, and due to the fact that the pushing spring is in a compressed state, the copper wire can be prevented from loosening on the winding roller. When the winding roller rotates, the circular ring pushes the rotating disc to move out of the protruding block, the protruding block does not continue to drive the rotating disc to rotate, the winding roller stops rotating, winding operation is not carried out any more, and the situation that winding operation continues, the number of copper coils on the winding roller exceeds the standard, an iron core of the current transformer is saturated, and normal work of the current transformer is affected is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of current transformer production, in particular to a coil winding machine for current transformer production. Background Art

[0002] A transformer, also known as an instrument transformer, is a general term for current transformers and voltage transformers. It can convert high voltage into low voltage and high current into low current. It is used in measurement or protection systems. Its main function is to convert high voltage or high current into standard low voltage or standard low current in proportion, so as to achieve standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. At the same time, the transformer can also be used to isolate high voltage systems to ensure the safety of people and equipment.

[0003] The patent with the patent announcement number CN211376401U relates to a coil winding device for sensor production, including a workbench, two side uprights, two rotating shafts, a first motor, two connecting seats and two through slots, the two side uprights are fixedly mounted on the top of the workbench, the two rotating shafts are rotatably mounted on the two side uprights respectively, the first motor is fixedly mounted on any one of the side uprights, the output shaft of the first motor is fixedly connected to the corresponding rotating shaft, and the two connecting seats are fixedly mounted on one end of the two rotating shafts close to each other. The patent has a reasonable design, and winding rollers of different diameters can be wound by setting the first screw and the first sliding plate, which greatly improves the applicability, and the device does not require multiple people to operate during the winding process, which reduces labor and reduces production costs.

[0004] The above-mentioned coil winding machine presses the winding roller by two sets of arc-shaped pressure plates, and then starts the motor to perform the winding operation. However, when the winding roller is completed, it cannot stop rotating the winding roller, which may cause the winding roller to continue to rotate to wind the copper wire. However, when the number of copper wires wound is too large, the excessive number of coil turns may cause the core of the current transformer to saturate, affecting its normal operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a coil winding machine for current transformer production, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a coil winding machine for current transformer production, comprising a workbench, a vertical plate fixed on the top of the workbench, a motor fixed on the side wall of the vertical plate, a rotating shaft fixed on the output end of the motor, the rotating shaft passes through the vertical plate and is rotatably connected at the penetration point, a winding roller is attached to the outer wall of the rotating shaft, a raised block is fixed to the outer wall of the rotating shaft, a rotating disk is attached to the outer wall of the raised block, the side wall of the rotating disk is attached to the side wall of the winding roller, a clamping assembly for positioning the winding roller is provided on the rotating disk, the clamping assembly comprises a bidirectional threaded rod, a turning knob, a threaded sleeve and a clamping plate, the bidirectional threaded rod is rotatably installed on the inner side of the rotating disk, a turning knob is fixed on the top of the bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected to the threaded sleeve, the outer wall of the threaded sleeve is fixed with a clamping plate, when a winding operation is required, the winding roller is The wheel base is provided with a plurality of threaded sleeves, each of which is provided with a plurality of threaded sleeves, and the plurality of threaded sleeves are provided with a plurality of threaded sleeves, each of which is provided with a plurality of threaded sleeves, and the plurality of threaded sleeves are provided with a plurality of threaded sleeves.

[0007] According to the above technical solution, a connecting frame is fixed on the top of the support block, a bending block is slidably installed on the inner wall of the connecting frame, a compression spring is fixed on the bottom of the bending block, the bottom of the compression spring is fixed to the top of the support block, and a compression roller is rotatably installed on the inner side of the bending block. When the copper wire on the winding roller is wound, the copper wire will squeeze the compression roller, thereby driving the compression roller to move upward, thereby moving the bending block upward and stretching the compression spring.

[0008] According to the above technical solution, a limiting block is fixed on the inner bottom of the bending block, and the limiting block penetrates the outer wall of the ring and fits in the penetration portion. When the bending block moves upward, the bending block drives the limiting block to move upward, so that the limiting block can be moved out of the ring, thereby releasing the limit on the ring. Since the pushing spring is in a compressed state, the ring can push the rotating disk to move, so that the inner side of the rotating disk does not contact the raised block of the rotating shaft, thereby stopping the rotating disk and stopping the roller from rotating.

[0009] According to the above technical solution, the cutting assembly includes an L-shaped support plate, a cutting seat, a movable seat, a cutting knife, an inclined groove, a connecting block, an extrusion rod, a fixed seat, a connecting rod, a clamping block and a connecting spring. The L-shaped support plate is fixed to the side wall of the connecting frame, the cutting seat is fixed to the bottom of the L-shaped support plate, a movable seat is slidably installed on the inner side of the cutting seat, and a cutting knife is fixed to the bottom of the movable seat.

[0010] According to the above technical solution, a connecting block is fixed to the side wall of the circular ring, an extrusion rod is fixed to the side of the connecting block away from the circular ring, an inclined groove is opened on the side wall of the movable seat, and the outer wall of the extrusion rod is in contact with the inner wall of the inclined groove. When the circular ring moves, it can drive the connecting block to move, and the extrusion rod will squeeze the inner wall of the inclined groove, so that the movable seat can move downward under the extrusion force, driving the cutting knife to move downward to cut the copper wire.

[0011] According to the above technical solution, a connecting rod passes through the top of the movable seat, and the penetration point is slidably connected, a clamping block is fixed at the bottom of the connecting rod, a connecting spring is fixed at the top of the movable seat, and the top of the connecting spring is fixed to the bottom of the protrusion at the top of the connecting rod. When the movable seat moves downward, the clamping block will move downward to clamp and position the copper wire first.

[0012] According to the above technical solution, the shielding assembly includes an L-shaped push block, a rotating rod, a transmission block, a torsion spring and a shielding plate. The rotating rod is rotatably installed on the side wall of the movable seat, the end point of the rotating rod is fixed with a transmission block, the side of the transmission block close to the movable seat is fixed with a shielding plate, and the side wall of the clamping block is fixed with an L-shaped push block. When the clamping block moves downward to contact the top of the fixed seat and the movable seat continues to move downward, the L-shaped push block will squeeze the inclined surface of the transmission block, thereby driving the transmission block to rotate, causing the shielding plate to rotate, exposing the cutting knife, and enabling cutting operations.

[0013] According to the above technical solution, a torsion spring is fixed to the side wall of the movable seat, and the side of the torsion spring away from the movable seat is fixed to the side wall of the transmission block. When the transmission block rotates, the transmission block drives the rotating rod to rotate, causing the torsion spring to be compressed and deformed.

[0014] The present invention provides a coil winding machine for current transformer production. It has the following beneficial effects:

[0015] 1. In the present invention, when the winding roller is subjected to the circling operation, a clamping spring and a clamping roller are provided so that the clamping roller can clamp the copper wire during the circling operation, thereby preventing the copper wire from loosening on the winding roller; and when the number of circling reaches the required amount, the clamping roller will move upward, and the limit block will be moved out of the circular ring through the cooperation of the bending block and the limit block, thereby releasing the limit on the circular ring. Since the pushing spring is in a compressed state, the circular ring will push the rotating disk out of the protruding block, and the protruding block will not continue to drive the rotating disk to rotate, so that the winding roller will also stop rotating, and the circling operation will no longer be performed, preventing the circling operation from continuing, which will cause the number of copper coils on the winding roller to exceed the standard, causing the iron core of the current transformer to be saturated, affecting its normal operation.

[0016] 2. According to the present invention, when the circular ring moves, it can drive the connecting block to move, thereby causing the extrusion rod to move in the inclined groove, so that the movable seat is moved downward by the extrusion force, driving the cutting knife to move downward, and cutting the copper wire after the winding is completed, thereby improving work efficiency; and in the process of cutting the copper wire, because the movable seat moves downward, the copper wire on the fixed seat is pressed and fixed by the cooperation of the connecting rod, the clamping block and the connecting spring, thereby preventing the copper wire from being in a tight state when cutting, which may cause the wire head to fly, causing the copper wire on the winding to be loose and winding.

[0017] 3. In the present invention, when the pressing block moves downward to contact with the top of the fixed seat and no longer moves, when the movable seat continues to move downward, the transmission block will contact the L-shaped push block, so that the L-shaped push block squeezes the transmission block, and the transmission block drives the shielding plate to rotate, so that the cutting knife is exposed for cutting operation; and when the movable seat moves upward and no cutting operation is performed, because the L-shaped push block no longer squeezes the transmission block, the cooperation of the torsion spring and the rotating rod can drive the transmission block and the shielding plate to rotate and reset, so that the shielding plate shields the bottom of the cutting knife, which can play a protective effect and prevent the bottom cutting surface of the cutting knife from being exposed to the outside, which may easily cause harm to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a partial structural schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the cutting assembly of the present invention;

[0023] Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure of A;

[0024] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the B structure;

[0025] Figure 8 It is a partial structural schematic diagram of the cutting component and the shielding component of the present invention.

[0026] In the figure: 1. workbench; 2. vertical plate; 3. motor; 4. rotating shaft; 5. winding roller; 6. raised block; 7. rotating disk; 8. clamping assembly; 9. support block; 10. pushing spring; 11. circular ring; 12. connecting frame; 13. clamping spring; 14. bending block; 15. limiting block; 16. clamping roller; 1701. L-shaped support plate; 1702. cutting seat; 1703. moving seat; 1704. cutting knife; 1705. inclined groove; 1706. connecting block; 1707. extrusion rod; 1708. connecting rod; 1709. connecting spring; 1710. clamping block; 1711. fixed seat; 1801. L-shaped push block; 1802. rotating rod; 1803. transmission block; 1804. torsion spring; 1805. shielding plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 8One embodiment of the present invention is: a coil winding machine for current transformer production, comprising a workbench 1, a vertical plate 2 is fixed on the top of the workbench 1, a motor 3 is fixed on the side wall of the vertical plate 2, a rotating shaft 4 is fixed on the output end of the motor 3, the rotating shaft 4 passes through the vertical plate 2, and is rotatably connected at the penetration point, a winding roller 5 is attached to the outer wall of the rotating shaft 4, a protruding block 6 is fixed to the outer wall of the rotating shaft 4, a rotating disk 7 is attached to the outer wall of the protruding block 6, the side wall of the rotating disk 7 is attached to the side wall of the winding roller 5, and a rotating disk 7 is provided on the rotating disk 7. The roller 5 is positioned by a clamping assembly 8, which includes a bidirectional threaded rod, a knob, a threaded sleeve and a clamping plate. The bidirectional threaded rod is rotatably mounted on the inner side of the rotating disk 7. A knob is fixed on the top of the bidirectional threaded rod. The outer wall of the bidirectional threaded rod is threadedly connected with a threaded sleeve. The threaded sleeve is slidably mounted on the inner side of the rotating disk 7. A clamping plate is fixed on the outer wall of the threaded sleeve. Two groups of clamping plates are provided, and the two groups of clamping plates are symmetrically arranged with the center line of the rotating disk 7 in the vertical direction as the symmetry axis. By rotating the knob forward, the bidirectional threaded rod is driven Rotation can make the thread sleeves on the bidirectional threads approach each other, and the winding roller 5 is pressed and fixed. An auxiliary component is provided on the rotating shaft 4 to prevent the winding roller 5 from winding too much; wherein the auxiliary component includes a support block 9, a push spring 10, a ring 11, a connecting frame 12, a bending block 14, a pressing spring 13, a pressing roller 16 and a limit block 15; the support block 9 is fixed to the side wall of the vertical plate 2, the rotating shaft 4 passes through the middle position of the support block 9, the side wall of the rotating disk 7 is rotatably installed with a ring 11, and the side wall of the support block 9 is fixed There is a push spring 10, and the side of the push spring 10 away from the support block 9 is fixed to the side wall of the ring 11. A connecting frame 12 is fixed to the top of the support block 9, and a bending block 14 is slidably installed on the inner wall of the connecting frame 12. A clamping spring 13 is fixed to the bottom of the bending block 14, and the bottom of the clamping spring 13 is fixed to the top of the support block 9. A clamping roller 16 is rotatably installed on the inner side of the bending block 14, and a limiting block 15 is fixed to the inner bottom of the bending block 14. The limiting block 15 passes through the outer wall of the ring 11, and the penetration is fitted.

[0029] Through the clamping spring 13 and the clamping roller 16 , when the winding operation is performed, the clamping spring 13 cooperates with the clamping roller 16 to clamp the copper wire wound on the winding roller 5 , thereby preventing the copper wire from loosening on the winding roller 5 .

[0030] When the copper wire wound on the winding roller 5 reaches a certain amount, the copper wire will squeeze the clamping roller 16 and move upward. When the clamping roller 16 moves upward to drive the limit block 15 to move out of the ring 11, the limit on the ring 11 is released. Since the push spring 10 is originally in a compressed state, the ring 11 will push the rotating disk 7 to move away from the raised block 6 of the rotating shaft 4, so that the raised block 6 will no longer continue to drive the rotating disk 7 to rotate, and the winding operation will be stopped. Preventing the winding operation from continuing will cause the number of copper coils on the winding roller 5 to exceed the standard, causing the iron core of the current transformer to be saturated, affecting its normal operation.

[0031] When this embodiment is working: when performing the winding operation, the staff will sleeve the winding roller 5 on the rotating shaft 4, so that the side wall of the winding roller 5 is in contact with the side wall of the rotating disk 7. After the winding roller 5 is placed, the forward rotation button is used to drive the bidirectional threaded rod to rotate forward, so that the two sets of thread sleeves on the bidirectional threaded rod are close to each other on the bidirectional threaded rod, so that the thread sleeve drives the two sets of clamping plates to approach each other, and the two sets of clamping plates are in an arc shape, and the winding roller 5 on the rotating shaft 4 can be clamped and positioned by the two sets of clamping plates. After the winding roller 5 is clamped, the copper wire is passed through the fixing ring on the winding roller 5 to fix the copper wire, and the copper wire is at the bottom of the clamping roller 16, thereby starting the motor 3, so that the rotating shaft 4 drives the protruding block 6 to rotate forward, so that the protruding block 6 squeezes the inner groove of the rotating disk 7, drives the rotating disk 7 to rotate forward, and the clamping assembly 8 The winding roller 5 is driven to rotate and perform the winding work. When the copper wire is in the winding process, the copper wire will be pressed against the bottom of the pressure roller 16, and the copper wire will move upward against the pressure roller 16, so that the bending block 14 drives the pressure spring 13 to stretch, so that the pressure roller 16 always applies a pressure force to the copper wire, which can prevent the copper wire from loosening from the winding roller 5, and when the copper wire is wound to a specified number, the bending block 14 drives the limit block 15 to move out of the ring 11, and the limit on the ring 11 is released. Because the push spring 10 is in a compressed state, the push spring 10 pushes the ring 11 to move, so that the ring 11 drives the rotating disk 7 to move, and the rotating disk 7 is removed from the protruding block 6 of the rotating shaft 4. The protruding block 6 no longer drives the rotating disk 7 to rotate, so that the winding roller 5 stops rotating, and the winding operation is stopped to prevent the number of circles from exceeding the standard.

[0032] When the rotating disk 7 needs to be reset, the bending block 14 is pushed to move upward to stretch the compression spring 13. By rotating the groove on the rotating disk 7 and aligning it with the raised block 6 on the outer wall of the rotating shaft 4, the rotating disk 7 can be pushed closer to the motor 3, so that the ring 11 can squeeze the push spring 10 to compress the rotating disk 7, so that the rotating disk 7 is sleeved on the raised block 6. When the ring 11 moves to the through hole and aligns with the limit block 15, the bending block 14 is released. Because the compression spring 13 is in a stretched state, the limit block 15 can be driven to extend into the through hole of the ring 11, so that the ring 11 and the rotating disk 7 are fixed.

[0033] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes a cutting assembly for cutting the coil and a shielding assembly for protecting the cutting assembly; the cutting assembly includes an L-shaped support plate 1701, a cutting seat 1702, a moving seat 1703, a cutting knife 1704, an inclined groove 1705, a connecting block 1706, an extrusion rod 1707, a fixed seat 1711, a connecting rod 1708, a pressing block 1710 and a connecting spring 1709, the L-shaped support plate 1701 is fixed to the side wall of the connecting frame 12, the cutting seat 1702 is fixed to the bottom of the L-shaped support plate 1701, and the moving seat 1703 is slidably installed on the inner side of the cutting seat 1702. 3. A cutting knife 1704 is fixed to the bottom of the movable seat 1703, a connecting block 1706 is fixed to the side wall of the ring 11, an extrusion rod 1707 is fixed to the side of the connecting block 1706 away from the ring 11, an inclined groove 1705 is opened on the side wall of the movable seat 1703, the outer wall of the extrusion rod 1707 is fitted with the inner wall of the inclined groove 1705, a connecting rod 1708 passes through the top of the movable seat 1703, and the penetration is slidably connected, a pressing block 1710 is fixed to the bottom of the connecting rod 1708, and a connecting spring 1709 is fixed to the top of the movable seat 1703, and the top of the connecting spring 1709 is fixed to the bottom of the top protrusion of the connecting rod 1708.

[0034] By setting the inclined groove 1705, when the push spring 10 drives the ring 11 to move, the connecting block 1706 will drive the extrusion rod 1707 to move in the inclined groove 1705, so that the moving seat 1703 moves downward under the extrusion force, and the cutting knife 1704 moves downward, which can achieve the effect of cutting the copper wire, and a cutting groove is opened on the inner side of the cutting seat 1702, which is convenient for cutting the copper wire.

[0035] By setting the clamping block 1710, during the cutting operation, the clamping block 1710 will first contact the copper wire on the fixing seat 1711, so that the clamping block 1710 can clamp and fix the copper wire, thereby preventing the copper wire from being loose due to the copper wire being in a tight state when being cut, which may cause the wire end to fly away, causing the copper wire on the winding roller 5 to be loose.

[0036] The shielding assembly includes an L-shaped push block 1801, a rotating rod 1802, a transmission block 1803, a torsion spring 1804 and a shielding plate 1805. The rotating rod 1802 is rotatably installed on the side wall of the movable seat 1703. The transmission block 1803 is fixed to the end point of the rotating rod 1802. The shielding plate 1805 is fixed to the side of the transmission block 1803 close to the movable seat 1703. The L-shaped push block 1801 is fixed to the side wall of the clamping block 1710. The torsion spring 1804 is fixed to the side wall of the movable seat 1703. The torsion spring 1804 is fixed to the side wall of the transmission block 1803 away from the movable seat 1703.

[0037] By setting the transmission block 1803 to be inclined, when the L-shaped push block 1801 moves upward, the L-shaped push block 1801 will squeeze the inclined surface of the transmission block 1803, thereby driving the transmission block 1803 to rotate, causing the baffle plate 1805 to rotate, exposing the cutting knife 1704, and cutting the copper wire. When the L-shaped push block 1801 does not squeeze the transmission block 1803, the torsion spring 1804 is set to drive the transmission block 1803 and the baffle plate 1805 to reset, which can play a protective role and prevent the bottom cutting surface of the cutting knife 1704 from being exposed to the outside, which may cause harm to the staff.

[0038] When this embodiment is working: when the circular ring 11 moves away from the motor 3, the circular ring 11 will drive the connecting block 1706 away from the supporting block 9, so that the extrusion rod 1707 moves in the inclined groove 1705. Because the inclined groove 1705 is subjected to the extrusion force, the moving seat 1703 can drive the cutting knife 1704 to move downward. When the moving seat 1703 moves downward, you can drive the connecting rod 1708 and the clamping block 1710 to move downward. When the clamping block 1710 moves downward to contact the copper wire on the fixed seat 1711, when the moving seat 1703 continues to move downward, the clamping block 1710 will clamp the copper wire on the fixed seat 1711, and when the moving seat 1703 continues to move downward, the moving seat 1703 will drive the connecting spring 1709 to stretch. When the movable seat 1703 moves downward to the inclined surface of the transmission block 1803 and contacts the L-shaped push block 1801 on the side wall of the clamping block 1710, the transmission block 1803 will be subjected to an extrusion force, causing the transmission block 1803 to rotate forward, thereby causing the rotating rod 1802 to rotate forward and the torsion spring 1804 to be compressed and deformed. When the transmission block 1803 rotates forward, the baffle plate 1805 rotates forward and the cutting knife 1704 is exposed. At this time, the movable seat 1703 is still driving the cutting knife 1704 to move downward, and the cutting knife 1704 is used to cut the copper wire on the cutting seat 1702, and the automatic cutting operation is performed, which is convenient for the staff to operate. After the copper wire is cut, the clamping block 1710 is in a state of clamping the copper wire, thereby preventing the wire ends of the copper wire from flying.

[0039] When the ring 11 is reset, the connecting block 1706 will drive the extrusion rod 1707 in the inclined groove 1705 to approach the motor 3, so that the extrusion rod 1707 can squeeze the moving seat 1703 to move upward for reset. When the moving seat 1703 moves upward, it can drive the cutting knife 1704 to move upward. When the moving seat 1703 moves upward, it drives the transmission block 1803 to move upward. When the transmission block 1803 moves upward and does not contact the L-shaped push block 1801, the transmission block 1803 is not subjected to the extrusion force, and because the torsion spring 1804 is in a compressed deformation state, the torsion spring 1804 will drive the transmission block 1803 and the rotating rod 1802 to reverse, so that the transmission block 1803 can drive the shielding plate 1805 to reverse, so that the shielding plate 1805 can block the bottom of the cutting knife 1704 to prevent the bottom cutting surface of the cutting knife 1704 from being exposed to the outside, which may easily cause harm to the staff.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coil winding machine for current transformer production, comprising a workbench (1), characterized in that: A vertical plate (2) is fixed on the top of the workbench (1), a motor (3) is fixed on the side wall of the vertical plate (2), a rotating shaft (4) is fixed on the output end of the motor (3), the rotating shaft (4) passes through the vertical plate (2) and is rotatably connected at the penetration point, a winding roller (5) is attached to the outer wall of the rotating shaft (4), a protruding block (6) is fixed to the outer wall of the rotating shaft (4), a rotating disk (7) is attached to the outer wall of the protruding block (6), the side wall of the rotating disk (7) is attached to the side wall of the winding roller (5), and a rotating disk (7) is provided on the rotating disk (7). A clamping assembly (8) for positioning the winding roller (5) is provided, the clamping assembly (8) comprising a bidirectional threaded rod, a knob, a threaded sleeve and a clamping plate, the bidirectional threaded rod being rotatably mounted on the inner side of the rotating disk (7), the top of the bidirectional threaded rod being fixed with a knob, the outer wall of the bidirectional threaded rod being threadedly connected with a threaded sleeve, the outer wall of the threaded sleeve being fixed with a clamping plate, the rotating shaft (4) being provided with an auxiliary assembly for preventing the winding roller (5) from being overwound, and also comprising a cutting assembly for cutting the coil and a shielding assembly for protecting the cutting assembly; The auxiliary components include a support block (9), a push spring (10), a circular ring (11), a connecting frame (12), a bending block (14), a clamping spring (13), a clamping roller (16) and a limit block (15); the support block (9) is fixed to the side wall of the vertical plate (2); the side wall of the rotating disk (7) is rotatably mounted with the circular ring (11); the side wall of the support block (9) is fixed with the push spring (10); and the side of the push spring (10) away from the support block (9) is fixed to the side wall of the circular ring (11).

2. A coil winding machine for current transformer production according to claim 1, characterized in that: A connecting frame (12) is fixed on the top of the support block (9), a bending block (14) is slidably mounted on the inner wall of the connecting frame (12), a clamping spring (13) is fixed on the bottom of the bending block (14), the bottom of the clamping spring (13) is fixed on the top of the support block (9), and a clamping roller (16) is rotatably mounted on the inner side of the bending block (14).

3. A coil winding machine for current transformer production according to claim 2, characterized in that: A limiting block (15) is fixed to the inner bottom of the bending block (14), and the limiting block (15) penetrates the outer wall of the circular ring (11), and the penetration portion is in close contact with the outer wall.

4. A coil winding machine for current transformer production according to claim 1, characterized in that: The cutting assembly comprises an L-shaped support plate (1701), a cutting seat (1702), a movable seat (1703), a cutting knife (1704), an inclined groove (1705), a connecting block (1706), an extrusion rod (1707), a fixed seat (1711), a connecting rod (1708), a pressing block (1710) and a connecting spring (1709), wherein the L-shaped support plate (1701) is fixed to the side wall of the connecting frame (12), the cutting seat (1702) is fixed to the bottom of the L-shaped support plate (1701), the movable seat (1703) is slidably mounted on the inner side of the cutting seat (1702), and the cutting knife (1704) is fixed to the bottom of the movable seat (1703).

5. A coil winding machine for current transformer production according to claim 4, characterized in that: A connecting block (1706) is fixed to the side wall of the circular ring (11), and an extrusion rod (1707) is fixed to the side of the connecting block (1706) away from the circular ring (11). An inclined groove (1705) is provided on the side wall of the movable seat (1703), and the outer wall of the extrusion rod (1707) is in contact with the inner wall of the inclined groove (1705).

6. A coil winding machine for current transformer production according to claim 5, characterized in that: A connecting rod (1708) passes through the top of the movable seat (1703), and is slidably connected at the penetration point. A clamping block (1710) is fixed to the bottom of the connecting rod (1708). A connecting spring (1709) is fixed to the top of the movable seat (1703), and the top of the connecting spring (1709) is fixed to the bottom of the protrusion at the top of the connecting rod (1708).

7. A coil winding machine for current transformer production according to claim 6, characterized in that: The shielding assembly comprises an L-shaped push block (1801), a rotating rod (1802), a transmission block (1803), a torsion spring (1804) and a shielding plate (1805); the rotating rod (1802) is rotatably mounted on the side wall of the movable seat (1703); the transmission block (1803) is fixed to the end point of the rotating rod (1802); the shielding plate (1805) is fixed to the side of the transmission block (1803) close to the movable seat (1703); and the L-shaped push block (1801) is fixed to the side wall of the pressing block (1710).

8. A coil winding machine for current transformer production according to claim 7, characterized in that: A torsion spring (1804) is fixed to the side wall of the movable seat (1703), and the side of the torsion spring (1804) away from the movable seat (1703) is fixed to the side wall of the transmission block (1803).

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