A threader

Abstract

The application provides a threading device, and the elbow pipe collector in the threading device is rotatably arranged on the first rotating shaft through the first sleeve, the annular gasket and the snap spring. The elbow pipe collector can rotate up and down and swing left and right. The auxiliary rope arranging device composed of the rope arranging plate, the first eccentric wheel with the first push rod and the rope arranging motor is arranged on the inward outlet of the elbow pipe collector. The first sliding groove and the second sliding groove are arranged in parallel on the rope arranging plate. The sliding directions of the first sliding groove and the second sliding groove are perpendicular to the reciprocating direction of the rope arranging plate. The inward outlet of the elbow pipe collector and the first push rod are respectively inserted into the first sliding groove and the second sliding groove. Through the arrangement, the first eccentric wheel can drive the elbow pipe collector to reciprocate left and right when winding the line, so that the line on the line wheel is not concentrated and the line on the line wheel is more uniformly collected.

Description

Technical Field

[0001] This invention relates to the field of auxiliary threading tools, and particularly to a threader. Background Technology

[0002] In building construction, various pipes for high-voltage electricity, low-voltage electricity, fire protection, etc., are usually pre-buried or laid openly in the building structure. When installing wires and cables later, a wire pulling tool is needed to first pass through the pipe and then pull the wires and cables through the pipe. This tool is called a wire puller.

[0003] Chinese Patent 202111601820.2 discloses "a wire threader suitable for building electrical conduits", which includes a fan, a wire reeling and unloading host and a connecting hose. In this wire threader, the bend manifold can only swing up and down, but cannot swing left and right. It also lacks a rope-laying auxiliary device to make the bend manifold swing left and right. When reeling in the wire, the wire is easy to pile up together, and the wires in each layer are also easy to get stuck, which affects the normal unloading after reeling in the wire.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] The present invention provides a thread threader, which aims to solve the above-mentioned technical problems existing in the prior art thread threaders.

[0006] The content of this invention is as follows:

[0007] A cable threading device includes a fan, a cable reel main unit, and a connecting hose. The cable reel main unit includes a ventilation chamber, a reel chamber, and an electrical chamber. The ventilation chamber has a fan connector and a hose connector. An air duct connecting the fan connector and the hose connector is located inside the ventilation chamber. The connecting hose is connected to the hose connector, and the fan is connected to the fan connector. The electrical chamber is coaxially arranged alongside the reel chamber. The ventilation chamber communicates with the side wall of the reel chamber. A first partition is provided between the ventilation chamber and the reel chamber. A reel is located inside the reel chamber. A reel clutch drive device is located inside the electrical chamber. A curved pipe manifold is located inside the ventilation chamber via a first rotating shaft. A manifold support torsion spring passes through the first rotating shaft. A curved pipe through-hole for the curved pipe manifold to pass through is provided on the first partition.

[0008] The first rotating shaft is provided with an arc-shaped first clamping part, and the first clamping part is provided with a first sleeve. The external outlet of the curved manifold passes through the first sleeve and is in clearance fit with the first sleeve. The curved manifold at both ends of the first sleeve is provided with annular grooves. The annular grooves are provided with a first annular washer and a retaining spring to prevent the curved manifold from disengaging from the first sleeve. One end of the manifold lifting torsion spring is inserted into the inner wall of the ventilation chamber, and the other end of the manifold lifting torsion spring rests on the first sleeve.

[0009] A rope-laying auxiliary device is provided at the bend through hole of the first partition. The rope-laying auxiliary device includes a rope-laying plate and a rope-laying plate reciprocating drive assembly. A first slide groove and a second slide groove are arranged in parallel on the rope-laying plate. The sliding direction of the first slide groove and the second slide groove is perpendicular to the reciprocating motion direction of the rope-laying plate. The inner outlet of the bend manifold passes through the first slide groove.

[0010] The rope-laying plate reciprocating drive assembly includes a first eccentric wheel with a first push rod and a rope-laying motor for driving the first eccentric wheel to rotate. The first push rod of the first eccentric wheel is inserted into the second slide groove. The rope-laying plate reciprocating drive assembly is disposed in the electrical compartment.

[0011] In an optional embodiment of the present invention, an L-shaped magnetic sleeve mounting bracket is provided on the first sleeve, one end of the L-shaped magnetic sleeve mounting bracket is provided with an arc-shaped second clamping part, the other end of the L-shaped magnetic sleeve mounting bracket is connected to a magnetic sleeve, the L-shaped magnetic sleeve mounting bracket is fixed to the first sleeve through the second clamping part, a first magnet is provided on the magnetic sleeve, a first switch-type Hall sensor for cooperating with the first magnet is provided on the inner wall of the ventilation chamber, and the combiner lifting torsion spring is indirectly resting on the first sleeve through the L-shaped magnetic sleeve mounting bracket.

[0012] In an optional embodiment of the present invention, a spool braking device is further provided in the spool chamber. The spool braking device includes a brake block rotatably connected in the spool chamber and disposed adjacent to the spool, a brake block deflection torsion spring for driving the brake block to rotate and contact the outer periphery of the spool, and a first electromagnet and a lifting rod for driving the brake block to overcome the elastic force of the brake block deflection torsion spring and separate from the outer periphery of the spool by lifting upwards.

[0013] The brake block includes a first L-shaped connecting piece and a second L-shaped connecting piece arranged in parallel and symmetrically, and friction pieces connected at right-angle positions of the first L-shaped connecting piece and the second L-shaped connecting piece; the first L-shaped connecting piece and the second L-shaped connecting piece are rotatably connected in the reel compartment by a second rotating shaft in an inverted L shape; a crossbar is provided on the non-rotatably connected end of the first L-shaped connecting piece and the second L-shaped connecting piece;

[0014] The electromagnet is positioned above the brake block, and the lifting rod passes through the gap formed by the crossbar, the first L-shaped connecting piece, the second L-shaped connecting piece, and the friction plate. One end of the lifting rod passing through the gap is provided with an inclined surface for pushing the crossbar to separate the friction plate from the spool when the lifting rod rises.

[0015] In an optional embodiment of the present invention, a damper cable release control device is provided in the ventilation chamber on one side of the fan connector. The damper cable release control device includes a damper rotatably disposed in the air inlet of the ventilation chamber via a side rotating shaft, a damper torsion spring sleeved on the side rotating shaft and used to drive the damper to close the air inlet, a second magnet disposed at the lower edge of the damper, and a second switch-type Hall sensor disposed at the bottom of the air inlet of the ventilation chamber and used to cooperate with the second magnet.

[0016] In an optional embodiment of the present invention, a first clamping groove and a second clamping groove are respectively provided on the top and bottom of the side wall of the ventilation chamber on one side of the fan connector. The top and bottom ends of the side rotating shaft are respectively inserted into the first clamping groove and the second clamping groove. A first pressure cap is provided on the first clamping groove to restrict the top end of the side rotating shaft from disengaging from the first clamping groove. A second pressure cap is provided on the second clamping groove to restrict the bottom end of the side rotating shaft from disengaging from the second clamping groove.

[0017] In an optional embodiment of the present invention, the reel compartment and the electrical compartment are separated by a second partition. A drive shaft is disposed through the center of the second partition. A torsion spring mounting groove is disposed at the center of the reel. A transmission torsion spring is disposed in the torsion spring mounting groove. The drive shaft passes through the bottom of the torsion spring mounting groove and the transmission torsion spring. The transmission torsion spring includes an inner folding arm and an outer extending arm. The inner folding arm passes through the drive shaft. A hanging rod is disposed at the bottom of the torsion spring mounting groove near the transmission torsion spring. The outer extending arm is connected to the hanging rod. The drive shaft drives the reel to rotate through the transmission torsion spring.

[0018] In an optional embodiment of the present invention, the electrical compartment is further provided with a reel clutch drive device, the reel clutch drive device including a cover-shaped mounting seat mounted on the second partition and covering the area where the drive shaft is located, a driven gear and a driving gear that are internally meshed and driven between the cover-shaped mounting seat and the second partition, a take-up motor for driving the driving gear to rotate, and a clutch control mechanism for controlling the engagement or disengagement of the driving gear and the driven gear;

[0019] The clutch control mechanism includes a motor mounting base that is oscillatingly mounted on the cover-shaped mounting base and has an extended swing arm, a tension spring whose two ends are respectively connected to the inner sidewall of the motor mounting base and the electrical compartment and used to keep the driven gear and the driving gear meshing, and an eccentric wheel clutch control assembly for cooperating with the extended swing arm of the motor mounting base to control the separation of the driving gear and the driven gear.

[0020] The take-up motor is mounted on the motor mounting base, and the output shaft of the take-up motor passes through the shaft through hole on the motor mounting base and the shaft swing hole on the cover-shaped mounting base and is connected to the drive gear.

[0021] In an optional embodiment of the present invention, the eccentric wheel clutch control assembly includes a second eccentric wheel with a second push rod and a clutch motor for driving the second eccentric wheel to rotate. The second push rod includes a second screw seat integrally formed on the outer edge of the second eccentric wheel, a second screw connected to the second screw seat, and a second sleeve sleeved on the second screw. The second push rod contacts the extended swing arm of the motor mounting base through the second sleeve.

[0022] In an optional embodiment of the present invention, a main power knob is provided on the reel compartment. The main power knob includes a knob part, a cam part, and a connecting shaft part for connecting the knob part and the cam part. The knob part is located outside the reel compartment, the cam part is located inside the reel compartment, and the connecting shaft part penetrates through the side wall of the reel compartment. A plurality of positioning recesses are provided on the outer wall of the reel compartment corresponding to the knob part. The knob part is provided with a positioning groove for fitting the positioning recesses. A ball spring shifting limit mechanism is provided in the positioning groove. The reel compartment is also provided with a first micro switch for triggering by the cam part.

[0023] In an optional embodiment of the present invention, the take-up and release main unit further includes a take-up and release switch circuit, which includes a three-position adjustable operation switch, a blower button, a main power knob, a first micro switch, a power conversion module, a second micro switch, a third micro switch, a first electromagnet, a blower, a take-up motor, a clutch motor, a first switch-type Hall sensor, a second switch-type Hall sensor, a first DC relay, a second DC relay, and a third DC relay; the three-position adjustable operation switch includes a threading position, a standby position, and a take-up position; wherein, the power conversion module is used to convert the external power supply connected to the plug into AC / DC power and step it down to the internal power supply;

[0024] When using the threader, rotate the main power knob to close the first micro switch and connect the external power supply;

[0025] When the three-position adjustment switch is switched from the standby position to the threading position, the fan is connected to the external power supply, and the damper rotates under the action of the fan's airflow. The second magnet of the damper approaches the second switch-type Hall sensor; the second switch-type Hall sensor closes, and the second electromagnet of the first DC relay is connected to the internal power supply; the second electromagnet drives the first contact switch of the first DC relay to close, connecting the first electromagnet, so that the lifting rod drives the brake block to release the brake on the reel;

[0026] When the three-position adjustment switch is switched from the threading position to the standby position, the fan is de-energized, and the second electromagnet of the first DC relay is also de-energized; the first contact switch of the first DC relay is opened, and the first electromagnet is de-energized; the brake block resumes braking of the reel.

[0027] When the three-position adjustment switch is switched from the standby position to the take-up position, the bend junction box is initially in its original position, the first magnet on the magnetic sleeve approaches the first switch-type Hall sensor, and the first switch-type Hall sensor closes; the third electromagnet of the second DC relay is connected to the internal power supply; the third electromagnet drives the second contact switch of the second DC relay to switch to conduct the first electromagnet, so that the lifting rod drives the brake block to release the brake on the reel; the third electromagnet drives the third contact switch of the second DC relay to switch to conduct the take-up motor and the rope-laying motor; synchronously, the fourth electromagnet of the third DC relay is connected, and the fourth electromagnet drives the fourth and fifth contact switches of the third DC relay to switch to conduct the forward rotation circuit of the clutch motor; the clutch motor rotates forward until the second eccentric wheel on the clutch motor contacts the third micro switch, disconnecting the forward rotation circuit;

[0028] When the three-position adjustment switch is switched from the take-up position to the standby position, the fourth electromagnet of the third DC relay is de-energized, and the fourth electromagnet drives the fourth and fifth contact switches of the third DC relay to switch to conduct the reverse circuit of the clutch motor; the clutch motor reverses until the second eccentric wheel on the clutch motor contacts the second micro switch, disconnecting the reverse circuit;

[0029] When only air blowing is needed, the three-speed adjustment switch is in the standby position. Pressing the air blowing button connects the blower to the external power source, and the blower is powered on to blow air.

[0030] When maintenance is required, rotate the main power knob to disconnect the first micro switch and cut off the external power supply.

[0031] The beneficial effects are as follows: This invention provides a threader in which a curved manifold is rotatably mounted on a first rotating shaft via a first sleeve, an annular washer, and a retaining spring. The curved manifold can rotate up and down as well as swing left and right. Furthermore, a rope-laying auxiliary device, consisting of a rope-laying plate, a first eccentric wheel with a first push rod, and a rope-laying motor, is provided at the inner outlet of the curved manifold. The rope-laying plate has a first and a second sliding groove arranged parallel to each other, with the sliding direction of the first and second sliding grooves perpendicular to the reciprocating motion direction of the rope-laying plate. The inner outlet of the curved manifold and the first push rod are respectively inserted into the first and second sliding grooves. With this arrangement, the first eccentric wheel, driven by the rope-laying motor, allows the curved manifold to reciprocate left and right during thread take-up, preventing the thread from converging on the reel and causing thread clamping. The thread on the reel is collected more evenly. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a threader according to the present invention.

[0033] Figure 2 This is a schematic diagram of the structure of the wire reel compartment of the wire take-up and unwinding main unit after the cover is opened on one side.

[0034] Figure 3 This is an exploded view of the installation structure of a bent pipe combiner according to the present invention.

[0035] Figure 4 This is an assembly drawing of a bend-pipe junction box mounting structure according to the present invention.

[0036] Figure 5 This is a schematic diagram of the structure of a rope-laying auxiliary device according to the present invention.

[0037] Figure 6 This is an assembly structure diagram of a line wheel braking device according to the present invention.

[0038] Figure 7 This is an exploded view of a line wheel braking device according to the present invention.

[0039] Figure 8 This is an exploded view of a damper wire feeding control device according to the present invention.

[0040] Figure 9 This is an exploded view of the electrical compartment of the cable take-up and unwinding main unit after the cover is opened, from the first perspective of the present invention.

[0041] Figure 10 This is an exploded view of a pulley transmission structure according to the present invention.

[0042] Figure 11 This is a schematic diagram of the structure of a transmission torsion spring according to the present invention.

[0043] Figure 12 This is an exploded view of one side of the electrical compartment of the cable take-up and unwinding main unit after the cover is opened, which is a second perspective of the present invention.

[0044] Figure 13 This is an exploded view of a pulley clutch drive device according to the present invention.

[0045] Figure 14 This is an exploded view of an eccentric wheel clutch control assembly according to the present invention.

[0046] Figure 15 This is an exploded view of a main power knob according to the present invention.

[0047] Figure 16 This is a schematic diagram of the wire take-up and release switch circuit of the present invention.

[0048] Figure 17 This is a simplified diagram of a four-pin relay according to the present invention.

[0049] Figure 18 This is a simplified diagram of an eight-pin relay according to the present invention.

[0050] The icon numbers in the figure are as follows:

[0051] 10-Fan; 20-Rope take-up and undo main unit; 30-Connecting hose; 40-Ventilation chamber; 50-Rope reel chamber; 60-Electrical chamber; 70-Fan connector; 80-Hose connector; 90-Air duct; 100-First partition; 110-Rope reel; 120-First shaft; 130-Bend manifold; 140-Manifold lifting torsion spring; 150-Bend manifold through hole; 160-First clamping part; 170-First sleeve; 180-Annular groove; 190-First annular gasket; 200-Snap ring; 210-Rope laying auxiliary device; 220-Rope laying plate; 240-First slide groove; 250-Second slide groove; 260-First push rod; 270-First eccentric wheel; 280-Rope laying motor; 290-L-shaped magnetic sleeve holder Mounting bracket; 300-Second clamping part; 310-Magnetic sleeve; 320-First magnet; 330-First switch-type Hall sensor; 340-Thread wheel braking device; 350-Brake block; 360-Brake block deflection torsion spring; 370-First electromagnet; 380-Lifting rod; 390-First L-shaped connecting piece; 400-Second L-shaped connecting piece; 410-Friction plate; 420-Crossbar; 430-Inclined surface; 440-Damper wire release control device; 450-Damper; 460-Damper torsion spring; 470-Second magnet; 480-Second switch-type Hall sensor; 490-First clamping groove; 500-Second clamping groove; 510-First pressure cap; 520-Second pressure cap; 530-Second partition; 540- Drive shaft; 550-Torsion spring mounting slot; 560-Drive torsion spring; 570-Inward folding support arm; 580-Outward extension support arm; 590-Hanging rod; 610-Cover-shaped mounting base; 620-Driven gear; 630-Drive gear; 640-Take-up motor; 650-Extended swing arm; 660-Motor mounting base; 670-Tension spring; 680-Eccentric wheel clutch control assembly; 690-Shaft through hole; 700-Shaft swing hole; 710-Second push rod; 720-Second eccentric wheel; 730-Clutch motor; 740-Second screw seat; 750-Second screw; 760-Second sleeve; 780-Main power knob; 790-Knob part; 800-Cam part; 810-Coupling part; 820-Positioning recess; 140 0-Positioning slot; 830-Steel ball spring shifting limit mechanism; 840-First micro switch; 850-Three-gear adjustment operation switch; 860-Blower button; 870-Power conversion module; 880-Second micro switch; 890-Third micro switch; 900-First DC relay; 910-Second DC relay; 920-Third DC relay; 930-Wire threading position; 940-Standby position; 950-Wire take-up position; 900a-Second electromagnet; 900b-First contact switch; 910a-Third electromagnet; 910b-Second contact switch; 910c-Third contact switch; 920a-Fourth electromagnet; 920b-Fourth contact switch; 920c-Fifth contact switch. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] See Figure 1 This invention provides a cable threader, including a fan 10, a cable reeling / unloading main unit 20, and a connecting hose 30; see also Figure 2 The take-up and unwind main unit 20 includes a ventilation chamber 40, a reel chamber 50, and an electrical chamber 60. The ventilation chamber 40 is equipped with a fan connector 70 and a hose connector 80. An air duct 90 connecting the fan connector 70 and the hose connector 80 is located inside the ventilation chamber 40. A connecting hose 30 is connected to the hose connector 80, and a fan 10 is connected to the fan connector 70. The electrical chamber 60 is coaxially arranged alongside the reel chamber 50. The ventilation chamber 40 and the reel... The side walls of the chamber 50 are connected. A first partition 100 is provided between the ventilation chamber 40 and the reel chamber 50. A reel 110 is provided inside the reel chamber 50. A reel clutch drive device is provided inside the electrical chamber 60. A bent pipe manifold 130 is provided inside the ventilation chamber 40 through a first rotating shaft 120. A manifold lifting torsion spring 140 passes through the first rotating shaft 120. A bent pipe through hole 150 is provided on the first partition 100 for the bent pipe manifold 130 to pass through.

[0054] See Figure 3 and Figure 4The first rotating shaft 120 is provided with an arc-shaped first clamping part 160, and the first clamping part 160 is provided with a first sleeve 170. The external outlet of the bent pipe manifold 130 passes through the first sleeve 170 and is clearance-fitted with the first sleeve 170. The bent pipe manifold 130 at both ends of the first sleeve 170 is provided with annular grooves 180. The annular grooves 180 are provided with a first annular gasket 190 and a retaining ring 200 to prevent the bent pipe manifold 130 from disengaging from the first sleeve 170. At both ends of the first sleeve 170, the first annular gasket 190 is close to... The first sleeve 170 and the retaining spring 200 are disposed after the first annular gasket 190; one end of the manifold lifting torsion spring 140 is inserted into the inner wall of the ventilation chamber 40, and the other end of the manifold lifting torsion spring 140 rests on the first sleeve 170; in the invention, the external outlet of the curved manifold 130 is coaxially spaced within the first sleeve 170. The advantage of this is that during the winding process of the reel 110, the curved manifold 130 can swing left and right within the first sleeve 170, thereby avoiding the concentrated accumulation and crossing of the line during winding, and avoiding subsequent problems with unsmooth line release.

[0055] See Figure 2 A rope-laying auxiliary device 210 is provided at the bend through hole of the first partition 100, see [reference]. Figure 5 The rope-laying auxiliary device 210 includes a rope-laying plate 220 and a rope-laying plate reciprocating drive assembly. The rope-laying plate 220 has a first sliding groove 240 and a second sliding groove 250 arranged in parallel. The sliding direction of the first sliding groove 240 and the second sliding groove 250 is perpendicular to the reciprocating motion direction of the rope-laying plate 220. The rope-laying plate 220 is disposed through the first partition 100. The first sliding groove 240 is located on one side of the reel compartment 50, and the second sliding groove 250 is located on one side of the electrical compartment. The inner outlet of the curved pipe manifold 130 passes through the first sliding groove 240. The rope-laying plate reciprocating drive assembly includes a first eccentric wheel 270 with a first push rod 260 and a rope-laying motor 280 for driving the first eccentric wheel 270 to rotate. The first push rod 260 of the first eccentric wheel 270 is inserted into the second sliding groove 250. The rope-laying plate reciprocating drive assembly is disposed inside the electrical compartment 60.

[0056] See Figure 3 and Figure 4In an optional embodiment of the present invention, an L-shaped magnetic sleeve mounting bracket 290 is provided on the first sleeve 170. One end of the L-shaped magnetic sleeve mounting bracket 290 is provided with an arc-shaped second clamping part 300, and the other end of the L-shaped magnetic sleeve mounting bracket 290 is connected to a magnetic sleeve 310. The L-shaped magnetic sleeve mounting bracket 290 is fixed to the first sleeve 170 through the second clamping part 300. A first magnet 320 is provided on the magnetic sleeve 310. A first switch-type Hall sensor 330 (e.g., a normally open switch-type Hall sensor of OKI model GPS-01 or GPS-30) is provided on the inner wall of the ventilation chamber 40 for cooperating with the first magnet 320. The combiner lifting torsion spring 140 is indirectly attached to the first sleeve 170 through the L-shaped magnetic sleeve mounting bracket 290.

[0057] See Figure 3 In one optional embodiment of the invention, the inner outlet of the curved manifold 130 is funnel-shaped. In this invention, the funnel-shaped inner outlet of the curved manifold 130 prevents the rope from being cut by the inner outlet during rope swinging.

[0058] See Figure 7 In an optional embodiment of the invention, a rolling sleeve 1400 is provided on the crossbar 420 between the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400. In this invention, the rolling sleeve 1400 can change the rigid contact between the lifting rod 380 and the crossbar 420 into a movable contact, thereby reducing friction and extending the service life of the lifting rod 380 and the crossbar 420.

[0059] See Figure 2 In an optional embodiment of the present invention, a reel braking device 340 is further provided inside the reel compartment 50, see [link to previous embodiment]. Figure 6 The reel braking device 340 includes a brake block 350 rotatably connected within the reel chamber 50 and disposed adjacent to the reel 110; a brake block deflection torsion spring 360 for driving the brake block 350 to rotate and contact the outer periphery of the reel 110; and a first electromagnet 370 and a lifting rod 380 for driving the brake block 350 to overcome the elastic force of the brake block deflection torsion spring 360 and separate from the outer periphery of the reel 110 by lifting upwards. Specifically, the two ends of the brake block deflection torsion spring 360 in this invention form a V-shape, and the V-shape tends to expand at an angle. One end of the brake block deflection torsion spring 360 is connected to a pre-set column 1500 within the reel chamber 50 (see...). Figure 2When the brake block deflection torsion spring 360 contacts the brake block 350, the other end of the brake block deflection torsion spring 360 contacts the inner surface of the brake block 350 (i.e., the side of the friction plate 410 facing the crossbar 420, as described later), so that the brake block deflection torsion spring 360 can turn the brake block 350 toward the reel 110.

[0060] See Figure 7 The brake block 350 includes a first L-shaped connecting piece 390 and a second L-shaped connecting piece 400 arranged in parallel and symmetrical arrangement, and a friction piece 410 connected at the right-angle position of the first L-shaped connecting piece 390 and the right-angle position of the second L-shaped connecting piece 400; the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400 are rotatably connected in the reel compartment 50 by a second rotating shaft in an inverted L-shape (the second rotating shaft passes through the through hole at the bottom end of the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400, and the brake block deflection torsion spring 360 passes through the second rotating shaft and is disposed between the through hole at the bottom end of the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400); a crossbar 420 is provided on the non-rotatably connected end of the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400.

[0061] The electromagnet is positioned above the brake block 350. The lifting rod 380 passes through the gap formed by the crossbar 420, the first L-shaped connecting piece 390, the second L-shaped connecting piece 400, and the friction plate 410. One end of the lifting rod 380 passing through the gap is provided with an inclined surface 430 for pushing the crossbar 420 to separate the friction plate 410 from the spool 110 when the lifting rod 380 rises. In this invention, when it is necessary to release the brake on the reel 110, the first electromagnet 370 is energized, and the first electromagnet 370 will lift the lifting rod 380. When the inclined surface 430 on the lifting rod 380 contacts the crossbar 420, the crossbar 420 will move to the left under the outward squeezing action of the inclined surface 430. This will drive the friction plate 410 to move to the left through the first L-shaped connecting piece 390 and the second L-shaped connecting piece 400, thereby releasing the brake on the friction plate 410.

[0062] See Figure 2 In an optional embodiment of the present invention, a damper cable release control device 440 is provided in the ventilation chamber 40 on one side of the fan connector 70. See [link to relevant documentation]. Figure 8The damper cable control device 440 includes a damper 450 rotatably disposed in the air inlet of the ventilation chamber 40 via a side rotating shaft 770, a damper torsion spring 460 sleeved on the side rotating shaft 770 and used to drive the damper 450 to close the air inlet, a second magnet 470 disposed at the lower edge of the damper 450, and a second switch-type Hall sensor 480 (e.g., a normally open switch-type Hall sensor of OKI model GPS-01 or GPS-30) disposed at the bottom of the air inlet of the ventilation chamber 40 and used to cooperate with the second magnet 470. Specifically, in the present invention, if the pipe to be threaded is blocked, the airflow in the pipe will reverse and resist the airflow blown out by the fan 10. The airflow velocity in the ventilation chamber 40 will decrease. When it is insufficient to push the damper 450, the second switch-type Hall sensor 480 will move away and disconnect the power supply circuit of the first iron of the spool 110 braking device. Then the spool braking device will brake the spool 110 and stop the threading.

[0063] See Figure 8 In an optional embodiment of the present invention, a first clamping groove 490 and a second clamping groove 500 are respectively provided on the top and bottom of the side wall of the ventilation chamber 40 on one side of the fan connector 70. The top and bottom ends of the side rotating shaft 770 are respectively inserted into the first clamping groove 490 and the second clamping groove 500. The side rotating shaft 770 is in clearance fit with the first clamping groove 490 and the second clamping groove 500 so that the side rotating shaft 770 can rotate. A first pressure cover 510 is provided on the first clamping groove 490 to prevent the top end of the side rotating shaft 770 from disengaging from the first clamping groove 490. A second pressure cover 520 is provided on the second clamping groove 500 to prevent the bottom end of the side rotating shaft 770 from disengaging from the second clamping groove 500. The first pressure cover 510 and the second pressure cover 520 are fastened to the side wall of the ventilation chamber 40 by screws.

[0064] See Figure 9 In an optional embodiment of the present invention, the reel compartment 50 and the electrical compartment 60 are separated by a second partition 530, and a drive shaft 540 is disposed through the center of the second partition 530. (See also...) Figure 10 The reel 110 has a torsion spring mounting groove 550 at its center, and a transmission torsion spring 560 is disposed within the torsion spring mounting groove 550. The transmission shaft 540 passes through the bottom of the torsion spring mounting groove 550 and the transmission torsion spring 560. (See also...) Figure 11The transmission torsion spring 560 includes an inner folding arm 570 and an outer extending arm 580. The inner folding arm 570 passes through the transmission shaft 540. A hanging rod 590 is provided at the bottom of the torsion spring mounting groove 550 near the transmission torsion spring 560. The outer extending arm 580 is connected to the hanging rod 590. The transmission shaft 540 drives the reel 110 to rotate through the transmission torsion spring 560.

[0065] In an optional embodiment of the present invention, a reel clutch drive device is further provided inside the electrical compartment 60, see [link to relevant documentation]. Figure 9 The reel clutch drive device includes a cover-shaped mounting base 610 mounted on the second partition 530 and covering the area where the drive shaft 540 is located; a driven gear 620 and a driving gear 630 that are internally meshed and drive each other between the cover-shaped mounting base 610 and the second partition 530; a take-up motor 640 for driving the rotation of the driving gear 630; and a clutch control mechanism for controlling the engagement or disengagement of the driving gear 630 and the driven gear 620; the clutch control mechanism includes... The system includes a motor mounting base 660 that is oscillatingly mounted on the cover-shaped mounting base 610 and has an extended swing arm 650; tension springs 670 whose two ends are respectively connected to the inner sidewalls of the motor mounting base 660 and the electrical compartment 60 and are used to keep the driven gear 620 and the driving gear 630 engaged; and an eccentric wheel clutch control assembly 680 that cooperates with the extended swing arm 650 of the motor mounting base 660 to control the disengagement of the driving gear 630 and the driven gear 620; specifically, see [link to documentation]. Figure 9 The motor mounting base 660 is provided with a rotating hole 1600 at one end away from the extended swing arm 650, and the cover-shaped mounting base 610 is provided with a rotating column 1700 adapted to the rotating hole. The motor mounting base 660 is oscillatingly connected to the cover-shaped mounting base 610 through the rotating column 1700 and the rotating hole 1600.

[0066] The drive gears of the pulley clutch drive device of the present invention use internal meshing transmission. Compared with external meshing transmission, internal meshing transmission has less transmission stress and less wear. In addition, the drive gear 630 and the driven gear 620 are changed from being located on the outer side of the pulley compartment 50 to being located on the inner side. Under the restriction of the cover-shaped mounting seat 610, the drive gear 620 is not easy to loosen, and the reliability is higher.

[0067] See Figure 12 and Figure 13The take-up motor 640 is mounted on the motor mounting base 660. The output shaft of the take-up motor 640 passes through the shaft through hole 690 on the motor mounting base 660 and the shaft swing hole 700 on the cover-shaped mounting base 610 and is connected to the drive gear 630. In this invention, the shaft swing hole 700 is oval in shape, and its function is to provide sufficient room for the output shaft to move when the take-up motor 640 swings.

[0068] See Figure 14 In an optional embodiment of the present invention, the eccentric wheel clutch control assembly includes a second eccentric wheel 720 with a second push rod 710, and a clutch motor 730 for driving the second eccentric wheel 720 to rotate. The second push rod 710 includes a second screw seat 740 integrally formed on the outer edge of the second eccentric wheel 720, a second screw 750 connected to the second screw seat 740, and a second sleeve 760 sleeved on the second screw 750. The second push rod 710 contacts the extended swing arm 650 of the motor mounting base 660 through the second sleeve 760. In the invention, the structure of the first push rod 260 is the same as the structure of the second push rod 710.

[0069] In this invention, the clutch motor 730 can rotate clockwise or counterclockwise. When the clutch motor 730 rotates counterclockwise, the second eccentric wheel 720 also rotates counterclockwise. The second push rod 710 pushes the extended swing arm 650 to separate the motor mounting base 660, along with the driving gear 630 and driven gear 620 connected to the output shaft of the clutch motor 730, thereby disconnecting the transmission. When it is necessary to restore the transmission, the clutch motor 730 rotates clockwise, and the motor mounting base 660 swings upward under the action of the tension spring until the second push rod 710 separates from the extended swing arm 650. The tension spring drives the motor mounting base 660 to engage the driving gear 630 and driven gear 620 connected to the output shaft of the clutch motor 730, restoring the transmission connection.

[0070] See Figure 2 In an optional embodiment of the present invention, a main power knob 780 is provided on the reel compartment 50, see [link to previous embodiment]. Figure 15The main power knob 780 includes a knob part 790, a cam part 800, and a connecting shaft part 810 for connecting the knob part 790 and the cam part 800. The knob part 790 is located outside the reel compartment 50, and the cam part 800 is located inside the reel compartment 50. The connecting shaft part 810 penetrates the side wall of the reel compartment 50. A plurality of positioning recesses 820 are provided on the outer wall of the reel compartment 50 corresponding to the knob part 790. The knob part 790 is provided with a positioning groove 1400 for fitting with the positioning recesses 820. A ball spring shifting limit mechanism 830 is provided in the positioning groove 1400. The reel compartment 50 is also provided with a first micro switch 840 for triggering by the cam part 800. In this invention, the cam part 800 not only controls the first micro switch 840, but also acts on the lifting plate of the first electromagnet 370, causing the lifting rod 380 to rise. When the entire threader is de-energized, the brake on the thread wheel 110 is released, facilitating internal maintenance of the threader.

[0071] See Figure 16 In an optional embodiment of the present invention, the take-up and release host 20 further includes a take-up and release switch circuit, which includes a three-position adjustable operation switch 850 (see also...). Figure 9 The ventilation chamber 40 is equipped with a lifting handle, and the three-speed adjustable operation switch 850 is located on the lifting handle; the blowing button 860 (see also...) Figure 9 Similarly, the blower button 860 is also located on the lifting handle, the main power knob 780, the first micro switch 840 (normally closed, contact disconnect), the power conversion module 870 (located in the electrical compartment 60), and the second micro switch 880 (see also...) Figure 13 Normally closed type, contact disconnection), third micro switch 890 (see also...) Figure 13 Normally closed, contact disconnection), first electromagnet 370, fan 10, take-up motor 640, clutch motor 730, first switch-type Hall sensor 330, second switch-type Hall sensor 480, first DC relay 900 (in Figure 9 As shown, it includes a second electromagnet 900a (see [reference]). Figure 16 ) and the first contact switch 900b (see Figure 16 )), the second DC relay 910 (in Figure 9 As shown, it includes a third electromagnet 910a (see [reference]). Figure 16 ), second contact switch 910b (see Figure 16 ) and the third contact switch 910c (see Figure 16 )) and the third DC relay 920 (in Figure 9As shown, it includes the fourth electromagnet 920a (see...) Figure 16 ), fourth contact switch 920b (see Figure 16 ) and the fifth contact switch 920c (see Figure 16 The three-position adjustable operation switch 850 includes a wire threading position 930, a standby position 940, and a wire take-up position 950; wherein, the power conversion module 870 is used to convert the external power supply connected to the plug into AC-DC and step it down to the internal power supply.

[0072] When the threader is in use, rotate the main power knob 780 to close the first micro switch 840 and connect the external power supply. When the threader is initially connected to the external power supply, the clutch motor 730 is in a state of disengaging the driving gear 630 and the driven gear 620. The forward and reverse circuits of the clutch motor 730 are not fully connected (wherein, the second micro switch 880 on the reverse circuit is in an open state due to the contact of the second eccentric wheel 720, and the third micro switch 890 on the forward circuit is in a normally closed state).

[0073] When the three-position adjustment switch 850 is switched from the standby position 940 to the wire threading position 930, the fan 10 is connected to the external power supply, and the damper 450 rotates under the action of the airflow from the fan 10. The second magnet 470 of the damper 450 approaches the second switch-type Hall sensor 480; the second switch-type Hall sensor 480 closes, and the first DC relay 900 (a four-pin relay, structure can be found in [reference]) is activated. Figure 17 The second electromagnet 900a (including the second electromagnet 900a and the first contact switch 900b) is connected to the internal power supply; the second electromagnet 900a drives the first contact switch 900b of the first DC relay 900 to close and connect the first electromagnet 370, so that the lifting rod 380 drives the brake block 350 to release the brake on the reel 110.

[0074] When the three-position adjustment switch 850 is switched from the threading position 930 to the standby position 940, the fan 10 is de-energized, and the second electromagnet 900a of the first DC relay 900 is also de-energized; the first contact switch 900b of the first DC relay 900 is opened, and the first electromagnet 370 is de-energized; the brake block 350 resumes braking of the reel 110.

[0075] When the three-position adjustment switch 850 is switched from the standby position 940 to the take-up position 950, the bend junction box 130 is initially in its original position, the first magnet 320 on the magnetic sleeve 310 approaches the first switch-type Hall sensor 330, and the first switch-type Hall sensor 330 closes; the second DC relay 910 (an eight-pin relay, such as the Gordon model GA-2C-12L eight-pin DC relay, the structure of which can be found in [reference]) Figure 18 The third electromagnet 910a, including the third electromagnet 910a, the second contact switch 910b (using only the middle and left (or right) pins), and the third contact switch 910c (also using only the middle and left (or right) pins), is connected to the internal power supply. The third electromagnet 910a drives the second contact switch 910b of the second DC relay 910 to switch on the first electromagnet 370, so that the lifting rod 380 drives the brake block 350 to release the brake on the reel 110. The third electromagnet 910a drives the third contact switch 910c of the second DC relay 910 to switch on the take-up motor 640 and the rope-laying motor 280. Simultaneously, the third DC relay 920 (an eight-pin relay, including the fourth electromagnet 920a (and the second contact switch 910b)) is connected to the internal power supply. The fourth electromagnet 920a (which has the same structure as the third electromagnet 910a), the fourth contact switch 920b (which has the same structure as the second contact switch 910b, with all three pins used, and one end of the clutch motor 730 connected to the middle pin of the fourth contact switch), and the fifth contact switch 920c (which has the same structure as the third contact switch 910c, with all three pins used, and the other end of the clutch motor 730 connected to the middle pin of the fifth contact switch 920c) are all connected. The fourth electromagnet 920a drives the fourth contact switch 920b and the fifth contact switch 920c of the third DC relay 920 to switch to conduct the forward rotation circuit of the clutch motor 730. The clutch motor 730 rotates forward until the second eccentric wheel 720 on the clutch motor 730 contacts the third micro switch 890, thus disconnecting the forward rotation circuit.

[0076] After completing the above actions, the reel 110 begins to take in the line under the drive of the take-up motor 640. When the line is tightened, the curved manifold 130 rotates downward, causing the first magnet 320 on the magnetic sleeve 310 to move away from the first switch-type Hall sensor 330. The first switch-type Hall sensor 330 disconnects the power supply to the third electromagnet 910a, the second contact switch 910b disconnects the power supply to the first electromagnet 370, the reel 110 brakes, and simultaneously the third contact switch 910c disconnects the power supply to the take-up motor 640 and the rope-laying motor 280. The take-up motor 640 and the rope-laying motor 280 stop. When the rope returns to slack, the bending manifold 130 rotates upward to return to its original position. The first switch-type Hall sensor 330 closes to conduct the third electromagnet 910a. The second contact switch 910b closes again to restore power to the first electromagnet 370, releasing the brake on the reel 110. At the same time, the third contact switch 910c closes again to restore power to the take-up motor 640 and the rope-laying motor 280, driving the reel 110 to take up the rope. During the take-up process, the above actions are repeated as the rope tightens and loosens.

[0077] When the three-position adjustment switch 850 is switched from the take-up position 950 to the standby position 940, the fourth electromagnet 920a of the third DC relay 920 is de-energized. The fourth electromagnet 920a drives the fourth contact switch 920b and the fifth contact switch 920c of the third DC relay 920 to switch on the reverse circuit of the clutch motor 730. The clutch motor 730 reverses until the second eccentric wheel 720 on the clutch motor 730 contacts the second micro switch 880, disconnecting the reverse circuit.

[0078] When only air blowing is needed, the three-speed adjustment operation switch 850 is in the standby position 940. Pressing the air blowing button 860 connects the blower 10 to the external power source, and the blower 10 is powered on to blow air.

[0079] When maintenance is required, rotate the main power knob 780 to disconnect the first micro switch 840 and disconnect the external power supply.

[0080] In summary, the thread threader of the present invention has made the following technical upgrades compared with existing thread threaders.

[0081] 1.1 The structure of the bend manifold 130 has been improved to make it easier to manufacture, and a left and right deflection function has been added to the original up and down deflection function, which is used to work with the rope arranging auxiliary device 210 to arrange the ropes sequentially on the reel 110.

[0082] 1.2 The microswitch controlled by the original bend junction box has been replaced with a magnetic sensor, which avoids mechanical contact and improves stability and reliability.

[0083] Version 1.3 adds a rope-laying auxiliary device 210, which eliminates the problems of rope stacking and clamping when stored in the reel 110, making the whole machine smoother when winding and unwinding the rope.

[0084] 1.4 The original driving gear 630 and driven gear 620 have been updated to internal meshing transmission, which saves structural space and improves gear life.

[0085] 1.5 The original discrete relays have been replaced with printed circuit boards (PCBs), saving structural space and improving circuit reliability.

[0086] 1.6 The suction cup type electromagnet braking mechanism has been updated to a frame type electromagnet and brake block 350 mechanism, improving braking reliability and sensitivity.

[0087] 1.7 The original screw-type clutch drive mechanism has been updated to an eccentric wheel clutch drive mechanism, which improves reliability and sensitivity.

[0088] Version 1.8 adds damper 450 and damper 450 sensor, enabling the machine to automatically brake the reel 110 when the pipe is blocked, preventing excessive wire feeding and tangling.

[0089] Version 1.9 adds a blower button 860 switch, giving the machine the function of a regular blower 10, used to blow away water and debris from pipes, making it easier to locate pipe outlets or clean up debris at construction sites.

[0090] Version 1.10 has been updated. The capacitor has been removed, and a current collector sensor, a 450-degree damper sensor, an 860-degree air blowing button switch, a main power switch, and a rope motor have been added.

[0091] Version 1.11 features an updated handle structure that improves overall ease of operation.

[0092] Version 1.12 adds a maintenance switch. When the maintenance switch is switched to the maintenance position, the main power supply of the whole machine can be disconnected and the braking system of the spool 110 can be released, which facilitates the maintenance of high-strength wire.

[0093] 1.13 The overall machine casing and various system components have undergone significant structural improvements, resulting in more reliable and responsive overall performance.

[0094] Although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A cable threading device, comprising a fan, a cable reel main unit, and a connecting hose; the cable reel main unit includes a ventilation chamber, a reel chamber, and an electrical chamber; the ventilation chamber is provided with a fan connector and a hose connector, the interior of the ventilation chamber is provided with an air duct connecting the fan connector and the hose connector, the connecting hose is connected to the hose connector, and the fan is connected to the fan connector; the electrical chamber and the reel chamber are coaxially arranged side by side, the ventilation chamber is connected to the side wall of the reel chamber, a first partition is provided between the ventilation chamber and the reel chamber, a reel is provided in the reel chamber, a reel clutch drive device is provided in the electrical chamber, a curved pipe manifold is provided in the ventilation chamber through a first rotating shaft, a manifold lifting torsion spring passes through the first rotating shaft, and a curved pipe through hole for the curved pipe manifold to pass through the first partition, characterized in that... The first rotating shaft is provided with an arc-shaped first clamping part, and the first clamping part is provided with a first sleeve. The external outlet of the curved manifold passes through the first sleeve and is in clearance fit with the first sleeve. The curved manifold at both ends of the first sleeve is provided with annular grooves. The annular grooves are provided with a first annular washer and a retaining spring to prevent the curved manifold from disengaging from the first sleeve. One end of the manifold lifting torsion spring is inserted into the inner wall of the ventilation chamber, and the other end of the manifold lifting torsion spring rests on the first sleeve. A rope-laying auxiliary device is provided at the bend through hole of the first partition. The rope-laying auxiliary device includes a rope-laying plate and a rope-laying plate reciprocating drive assembly. A first slide groove and a second slide groove are arranged in parallel on the rope-laying plate. The sliding direction of the first slide groove and the second slide groove is perpendicular to the reciprocating motion direction of the rope-laying plate. The inner outlet of the bend manifold passes through the first slide groove. The rope-laying plate reciprocating drive assembly includes a first eccentric wheel with a first push rod and a rope-laying motor for driving the first eccentric wheel to rotate. The first push rod of the first eccentric wheel is inserted into the second slide groove. The rope-laying plate reciprocating drive assembly is disposed in the electrical compartment.

2. The threader according to claim 1, characterized in that, An L-shaped magnetic sleeve mounting bracket is provided on the first sleeve. One end of the L-shaped magnetic sleeve mounting bracket is provided with an arc-shaped second clamping part. The other end of the L-shaped magnetic sleeve mounting bracket is connected to a magnetic sleeve. The L-shaped magnetic sleeve mounting bracket is fixed to the first sleeve through the second clamping part. A first magnet is provided on the magnetic sleeve. A first switch-type Hall sensor for cooperating with the first magnet is provided on the inner wall of the ventilation chamber. The combiner lifting torsion spring is indirectly resting on the first sleeve through the L-shaped magnetic sleeve mounting bracket.

3. The threader according to claim 2, characterized in that, The reel compartment is also equipped with a reel braking device, which includes a brake block rotatably connected in the reel compartment and disposed adjacent to the reel, a brake block deflection torsion spring for driving the brake block to rotate and contact the outer periphery of the reel, and a first electromagnet and a lifting rod for driving the brake block to overcome the elastic force of the brake block deflection torsion spring and separate from the outer periphery of the reel by lifting upwards. The brake block includes a first L-shaped connecting piece and a second L-shaped connecting piece arranged in parallel and symmetrically, and friction pieces connected at right-angle positions of the first L-shaped connecting piece and the second L-shaped connecting piece; the first L-shaped connecting piece and the second L-shaped connecting piece are rotatably connected in the reel compartment by a second rotating shaft in an inverted L shape; a crossbar is provided on the non-rotatably connected end of the first L-shaped connecting piece and the second L-shaped connecting piece; The electromagnet is positioned above the brake block, and the lifting rod passes through the gap formed by the crossbar, the first L-shaped connecting piece, the second L-shaped connecting piece, and the friction plate. One end of the lifting rod passing through the gap is provided with an inclined surface for pushing the crossbar to separate the friction plate from the spool when the lifting rod rises.

4. The threader according to claim 3, characterized in that, A damper cable release control device is provided in the ventilation chamber on one side of the fan connector. The damper cable release control device includes a damper that is rotatably disposed in the air inlet of the ventilation chamber via a side rotating shaft, a damper torsion spring sleeved on the side rotating shaft and used to drive the damper to close the air inlet, a second magnet disposed at the lower edge of the damper, and a second switch-type Hall sensor disposed at the bottom of the air inlet of the ventilation chamber and used to cooperate with the second magnet.

5. The threader according to claim 4, characterized in that, The top and bottom of the side wall of the ventilation chamber on one side of the fan connector are respectively provided with a first clamping groove and a second clamping groove. The top and bottom ends of the side rotating shaft are respectively inserted into the first clamping groove and the second clamping groove. A first pressure cover is provided on the first clamping groove to restrict the top end of the side rotating shaft from disengaging from the first clamping groove. A second pressure cover is provided on the second clamping groove to restrict the bottom end of the side rotating shaft from disengaging from the second clamping groove.

6. The threader according to claim 4, characterized in that, The reel compartment and the electrical compartment are separated by a second partition. A drive shaft is disposed through the center of the second partition. A torsion spring mounting groove is disposed at the center of the reel. A transmission torsion spring is disposed in the torsion spring mounting groove. The drive shaft passes through the bottom of the torsion spring mounting groove and the transmission torsion spring. The transmission torsion spring includes an inner folding arm and an outer extension arm. The inner folding arm passes through the drive shaft. A hanging rod is disposed at the bottom of the torsion spring mounting groove near the transmission torsion spring. The outer extension arm is connected to the hanging rod. The drive shaft drives the reel to rotate through the transmission torsion spring.

7. The threader according to claim 6, characterized in that, The electrical compartment is also equipped with a wire reel clutch drive device, which includes a cover-shaped mounting base installed on the second partition and covering the area where the drive shaft is located, a driven gear and a driving gear that are internally meshed and driven between the cover-shaped mounting base and the second partition, a take-up motor for driving the driving gear to rotate, and a clutch control mechanism for controlling the engagement or disengagement of the driving gear and the driven gear. The clutch control mechanism includes a motor mounting base that is oscillatingly mounted on the cover-shaped mounting base and has an extended swing arm, a tension spring whose two ends are respectively connected to the inner sidewall of the motor mounting base and the electrical compartment and used to keep the driven gear and the driving gear meshing, and an eccentric wheel clutch control assembly for cooperating with the extended swing arm of the motor mounting base to control the separation of the driving gear and the driven gear. The take-up motor is mounted on the motor mounting base, and the output shaft of the take-up motor passes through the shaft through hole on the motor mounting base and the shaft swing hole on the cover-shaped mounting base and is connected to the drive gear.

8. The threader according to claim 7, characterized in that, The eccentric wheel clutch control assembly includes a second eccentric wheel with a second push rod, and a clutch motor for driving the second eccentric wheel to rotate. The second push rod includes a second screw seat integrally formed on the outer edge of the second eccentric wheel, a second screw connected to the second screw seat, and a second sleeve sleeved on the second screw. The second push rod contacts the extended swing arm of the motor mounting base through the second sleeve.

9. The threader according to claim 8, characterized in that, The reel compartment is equipped with a main power knob, which includes a knob part, a cam part, and a connecting shaft part for connecting the knob part and the cam part. The knob part is located outside the reel compartment, the cam part is located inside the reel compartment, and the connecting shaft part passes through the side wall of the reel compartment. The outer wall of the reel compartment corresponding to the knob part is provided with a plurality of positioning recesses. The knob part is provided with a positioning groove for fitting into the positioning recesses. A ball spring shifting limit mechanism is provided in the positioning groove. The reel compartment is also provided with a first micro switch for triggering by the cam part.

10. The threader according to claim 9, characterized in that, The take-up and release main unit also includes a take-up and release switch circuit, which includes a three-position adjustable operation switch, a blower button, a main power knob, a first micro switch, a power conversion module, a second micro switch, a third micro switch, a first electromagnet, a fan, a take-up motor, a clutch motor, a first switch-type Hall sensor, a second switch-type Hall sensor, a first DC relay, a second DC relay, and a third DC relay; the three-position adjustable operation switch includes a threading position, a standby position, and a take-up position; wherein, the power conversion module is used to convert the external power supply connected to the plug into AC / DC and step it down to the internal power supply; When using the threader, rotate the main power knob to close the first micro switch and connect the external power supply; When the three-position adjustment switch is switched from the standby position to the threading position, the fan is connected to the external power supply, and the damper rotates under the action of the fan's airflow. The second magnet of the damper approaches the second switch-type Hall sensor; the second switch-type Hall sensor closes, and the second electromagnet of the first DC relay is connected to the internal power supply; the second electromagnet drives the first contact switch of the first DC relay to close, connecting the first electromagnet, so that the lifting rod drives the brake block to release the brake on the reel; When the three-position adjustment switch is switched from the threading position to the standby position, the fan is de-energized, and the second electromagnet of the first DC relay is also de-energized; the first contact switch of the first DC relay is opened, and the first electromagnet is de-energized; the brake block resumes braking of the reel. When the three-position adjustment switch is switched from the standby position to the take-up position, the bend junction box is initially in its original position, the first magnet on the magnetic sleeve approaches the first switch-type Hall sensor, and the first switch-type Hall sensor closes; the third electromagnet of the second DC relay is connected to the internal power supply; the third electromagnet drives the second contact switch of the second DC relay to switch to conduct the first electromagnet, so that the lifting rod drives the brake block to release the brake on the reel; the third electromagnet drives the third contact switch of the second DC relay to switch to conduct the take-up motor and the rope-laying motor; synchronously, the fourth electromagnet of the third DC relay is connected, and the fourth electromagnet drives the fourth and fifth contact switches of the third DC relay to switch to conduct the forward rotation circuit of the clutch motor; the clutch motor rotates forward until the second eccentric wheel on the clutch motor contacts the third micro switch, disconnecting the forward rotation circuit; When the three-position adjustment switch is switched from the take-up position to the standby position, the fourth electromagnet of the third DC relay is de-energized, and the fourth electromagnet drives the fourth and fifth contact switches of the third DC relay to switch to conduct the reverse circuit of the clutch motor; the clutch motor reverses until the second eccentric wheel on the clutch motor contacts the second micro switch, disconnecting the reverse circuit; When only air blowing is needed, the three-speed adjustment switch is in the standby position. Pressing the air blowing button connects the blower to the external power source, and the blower is powered on to blow air. When maintenance is required, rotate the main power knob to disconnect the first micro switch and cut off the external power supply.

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