Automatic threading machine

Abstract

The present invention is applicable to the field of building decoration, and provides an automatic threading machine, including: a frame; a driving motor installed on the frame, and a driving gear is arranged on the output shaft of the driving motor; a wire-reeling device installed on the frame; a first driven gear driving the wire-reeling device to release the wire, and the first driven gear is driven by the driving gear; a reel rotatably installed on the frame, and a ring gear meshing with the driving gear is arranged on the outer edge of the reel. In the embodiment of the present invention, a first driven gear driving the wire-reeling device to release the wire is arranged, and a ring gear meshing with the driving gear is arranged on the outer edge of the reel, so that the driving motor can simultaneously drive the wire-reeling device to release the wire and the reel to reel in the wire through the driving gear. The present application uses a set of drives to realize wire reeling and wire-reeling, and has a simple structure and low cost.

Description

Technical Field

[0001] The invention belongs to the field of building decoration, and in particular relates to an automatic threading machine. Background Art

[0002] At present, in building decoration construction, for the sake of safety and aesthetics, electric wires are generally passed through wire tubes installed in the wall. Since the wire tubes are buried in the wall and have corners, and the wires are relatively soft, it is not easy for the wires to pass through the corners. Therefore, the construction workers generally adopt the following method: tie one end of the wire with iron wire or steel wire as a traction wire, and first pass the free end of the iron wire or steel wire through the wire tube, and then pull the wire into the wire tube. After adopting this manual method, the wire can pass through the corner of the wire tube, but it is manpower-consuming and has low work efficiency. At the same time, in the case of complex wire tubes, it is still not easy for the iron wire or steel wire to pass through the entire wire tube, or even impossible to pass through.

[0003] To solve the above problems, automatic threading machines have appeared on the market. The automatic threading machine includes two rolling wheels that abut against each other and are arranged side by side, and a sleeve located between the two rolling wheels. The two rolling wheels are connected to the driving motor. The rolling wheels are driven by the motor to rotate, and the purpose of releasing or pulling the lead wire is achieved by reversing the motor. After the lead wire is pulled back, the cable is recovered by the reel for next use.

[0004] However, the current automatic threading machines use two sets of drives for taking up and paying out the wire, which are complex in structure and high in cost. Summary of the invention

[0005] The invention provides an automatic threading machine, aiming to solve the problem of complex structure of the automatic threading machine.

[0006] The present invention is implemented in this way: an automatic threading machine comprises:

[0007] frame;

[0008] A driving motor mounted on the frame, wherein an output shaft of the driving motor is provided with a driving gear;

[0009] a wire-paying device mounted on the frame;

[0010] A first driven gear driving the wire-releasing device to release the wire, wherein the first driven gear is driven by the driving gear;

[0011] A reel is rotatably mounted on the frame, and a ring tooth meshing with the driving gear is arranged on the outer edge of the reel.

[0012] Furthermore, the frame is provided with an axial hole and a slide groove connected to the axial hole;

[0013] The automatic threading machine further comprises a second driven gear respectively meshing with the driving gear and the first driven gear;

[0014] When releasing the line, the rotating shaft of the second driven gear is arranged in the shaft hole, and the second driven gear is meshed with the first driven gear;

[0015] When the line is taken up, driven by the driving gear, the rotating shaft of the second driven gear slides toward the sliding groove, and the second driven gear is gradually separated from the first driven gear.

[0016] Furthermore, the center line of the slide groove is arc-shaped, and the axis center of the output shaft of the drive motor is the center of the circle.

[0017] Furthermore, the width of the slide groove is equal to the diameter of the shaft hole.

[0018] Furthermore, the automatic threading machine also includes:

[0019] A ratchet for winding the cable, the ratchet and the reel being coaxial and relatively rotatable;

[0020] A pawl mounted on the reel, the pawl meshing with the ratchet, and an end of the pawl facing in the opposite direction to the unwinding direction of the reel;

[0021] The elastic member provides a retaining force for the pawl to mesh with the ratchet wheel.

[0022] Furthermore, the toothed surface of the ratchet is arranged on an inner edge of the ratchet.

[0023] Furthermore, the elastic member is a torsion spring, the reel is provided with a first positioning column for mounting the pawl and a second positioning column for mounting the torsion spring, a baffle is further provided beside the second positioning column, one end of the torsion spring abuts against the pawl, and the other end abuts against the baffle.

[0024] Furthermore, the pay-off device includes an active pay-off wheel and a driven pay-off wheel rotatably mounted on the frame, the active pay-off wheel and the driven pay-off wheel are arranged side by side with a gap for the cable to pass through, and the first driven gear is coaxial with the active pay-off wheel and rotates synchronously.

[0025] Furthermore, the automatic threading machine also includes an adjusting device for adjusting the gap between the active pay-off wheel and the driven pay-off wheel.

[0026] Furthermore, the frame includes a main support, a handle upper cover and a handle lower cover, the drive motor and the reel are installed on the main support, and the shaft hole and the slide groove are arranged on the handle upper cover.

[0027] Furthermore, the reel comprises an upper shell and a lower shell, convex rings are arranged on both sides of the main support, annular grooves are arranged on the upper shell and the lower shell, and the annular grooves are clamped on the convex rings.

[0028] In the embodiment of the present invention, a first driven gear is provided to drive the pay-off device to pay out the line, and a ring gear meshing with the driving gear is provided on the outer edge of the winding wheel, so that the driving motor can simultaneously drive the pay-off device to pay out the line and the winding wheel to reel in the line through the driving gear. The present application uses a set of driving devices to realize reeling and pay-off, and has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of the automatic threading machine provided by the present invention;

[0030] Figure 2 It is a plan view of the automatic wire threading machine provided by the present invention when releasing the wire;

[0031] Figure 3 yes Figure 2 The internal structure plan of

[0032] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0033] Figure 5 yes Figure 3 The three-dimensional structure diagram of

[0034] Figure 6 It is a plan view of the automatic threading machine provided by the present invention when winding the wire;

[0035] Figure 7 yes Figure 6 The internal structure plan of

[0036] Figure 8 It is the assembly structure diagram of the pay-off device and the adjusting device;

[0037] Fig. 9 It is an exploded structural diagram of the frame and reel.

[0038] In the figure, 1, frame; 11, main bracket; 111, through hole; 112, convex ring; 12, handle upper cover; 121, shaft hole; 122, slide groove; 13, handle lower cover; 2, driving motor; 3, active gear; 4, pay-off device; 41, active pay-off wheel; 42, driven pay-off wheel; 5, first driven gear; 6, second driven gear; 7, reel; 71, ring gear; 72, first positioning column; 73, second positioning column; 74, baffle; 75, ring groove; 81, ratchet; 82, pawl; 83, elastic member; 9, adjusting device; 91, adjusting rod; 911, adjusting handle; 92, shaft sleeve; 921, sleeve joint; 922, avoidance portion; 923, threaded portion. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The present invention provides an automatic threading machine, comprising: a frame; a driving motor mounted on the frame, a driving gear being arranged on the output shaft of the driving motor; a wire-releasing device mounted on the frame; a first driven gear driving the wire-releasing device to release the wire; a second driven gear meshing with the driving gear and the first driven gear respectively; a reel rotatably mounted on the frame, a ring gear meshing with the driving gear being arranged on the outer edge of the reel. In the embodiment of the present invention, a first driven gear driving the wire-releasing device to release the wire is arranged, and a ring gear meshing with the driving gear is arranged on the outer edge of the reel, so that the driving motor can simultaneously drive the wire-releasing device to release the wire and the reel to reel in the wire through the driving gear. The present application uses a set of drives to realize reeling and releasing the wire, and has a simple structure and low cost.

[0041] Embodiment 1

[0042] like Figure 1-Figure 7 As shown, the present invention provides an automatic threading machine, comprising:

[0043] Rack 1;

[0044] A driving motor 2 mounted on the frame 1, wherein a driving gear 3 is disposed on an output shaft of the driving motor 2;

[0045] A wire-releasing device 4 installed on the frame 1;

[0046] A first driven gear 5 driving the pay-off device 4 to pay-off the line, wherein the first driven gear 5 is driven by the driving gear 3;

[0047] A reel 7 is rotatably mounted on the frame 1 , and a ring gear 71 is provided on the outer edge of the reel 7 to mesh with the driving gear 3 .

[0048] The meshing between gears is reliable, stable and has good synchronization.

[0049] For the convenience of explanation, the embodiment of the present invention is illustrated by taking the illustrated direction as an example. The counterclockwise direction and the clockwise direction described in the embodiment can be adjusted according to the direction of cable winding, but are not limited thereto.

[0050] The first driven gear 5 is driven by the driving gear 3, and the driving gear 3 can be directly meshed with the first driven gear 5. Under the drive of the driving gear 3, the first driven gear 5 rotates, thereby driving the pay-off device 4 to pay out the line; or a second driven gear 6 can be set between the first driven gear 5 and the driving gear 3 as a transition piece, and the second driven gear 6 is respectively meshed with the first driven gear 5 and the driving gear 3. Under the drive of the driving gear 3, the second driven gear 6 rotates, thereby driving the first driven gear 5 to rotate, and then driving the pay-off device 4 to pay out the line.

[0051] Below, Figure 3 Take the diagram as an example to explain how to reel in and unreel.

[0052] Driven by the driving motor 2, the driving gear 3 rotates clockwise, and under the action of the driving gear 3, the reel 7 and the second driven gear 6 rotate counterclockwise, and the first driven gear 5 rotates clockwise, driving the pay-off device 4 to pay out the line. Driven by the driving motor 2, the driving gear 3 rotates counterclockwise, and under the action of the driving gear 3, the reel 7 rotates clockwise, and the reel 7 reels in the line.

[0053] The output shaft of the driving motor 2 rotates, driving the driving gear 3, thereby causing the reel 7 to rotate. The meshing between the gears is reliable and stable, and the synchronization is good. Figure 3 As shown, when the driving gear 3 rotates clockwise, the reel 7 and the second driven gear 6 rotate counterclockwise, and the first driven gear 5 rotates clockwise for unwinding. When the driving gear 3 rotates counterclockwise, the reel 7 rotates clockwise for winding. Of course, it can also be the other way around, such as the driving gear 3 rotates counterclockwise for unwinding and clockwise for winding, which is not limited here. In short, winding and unwinding are achieved by driving the motor 2 in the forward and reverse directions.

[0054] Of course, the driving motor 2 and the reel 7 may also be connected via a belt transmission, a chain transmission, or the like.

[0055] Continue to borrow Figure 3 If there is no second driven gear 6, this structure is not shown in the figure. At this time, the positions of the active pay-off wheel 41 and the driven pay-off wheel 42 need to be interchanged. Under the drive of the driving motor 2, the driving gear 3 rotates clockwise. Under the action of the driving gear 3, the reel 7 and the first driven gear 5 rotate counterclockwise, driving the pay-off device 4 to pay off the line. Under the drive of the driving motor 2, the driving gear 3 rotates counterclockwise. Under the action of the driving gear 3, the reel 7 rotates clockwise, and the reel 7 reels in.

[0056] In the embodiment of the present invention, a first driven gear 5 is provided to drive the pay-off device 4 to pay out the line, and a ring gear 71 meshing with the driving gear 3 is provided on the outer edge of the winding wheel 7, so that the driving motor 2 can simultaneously drive the pay-off device 4 to pay out the line and the winding wheel 7 to reel in the line through the driving gear 3. The present application uses a set of drives to achieve reeling and pay-off, with a simple structure and low cost.

[0057] Embodiment 2

[0058] like Figure 1-Figure 7 As shown, in an optional embodiment of the present invention, the frame 1 is provided with an axial hole 121 and a slide slot 122 connected to the axial hole 121;

[0059] The automatic threading machine further comprises a second driven gear 6 meshing with the driving gear 3 and the first driven gear 5 respectively;

[0060] When releasing the line, the rotating shaft of the second driven gear 6 is arranged in the shaft hole 121, and the second driven gear 6 is meshed with the first driven gear 5;

[0061] When the line is reeled in, driven by the driving gear 3 , the rotating shaft of the second driven gear 6 slides toward the sliding groove 122 , and the second driven gear 6 is gradually separated from the first driven gear 5 .

[0062] The meshing between gears is reliable, stable and has good synchronization.

[0063] For the convenience of explanation, the embodiment of the present invention is illustrated by taking the illustrated direction as an example. The counterclockwise direction and the clockwise direction described in the embodiment can be adjusted according to the direction of cable winding, but are not limited thereto.

[0064] like Figure 3 As shown, driven by the driving motor 2, the driving gear 3 rotates clockwise, and under the action of the driving gear 3, the winding wheel 7 rotates counterclockwise, and the second driven gear 6 is maintained in the shaft hole 121 and rotates counterclockwise, driving the first driven gear 5 to rotate clockwise, and the pay-off device 4 pays off the line.

[0065] like Figure 7 As shown, under the drive of the driving motor 2, the driving gear 3 rotates counterclockwise, and under the action of the driving gear 3, the reel 7 rotates clockwise, the reel 7 reels the line, and the second driven gear 6 slides into the slide groove 122 during the rotation process, and gradually separates from the first driven gear 5. At this time, the first driven gear 5 does not rotate, and the pay-off device 4 does not work. Therefore, when reeling, only the reel 7 works independently.

[0066] The embodiment of the present invention is provided with a slide groove 122 connected to the shaft hole 121. When releasing the line, the rotating shaft of the second driven gear 6 is set in the shaft hole 121, and the second driven gear 6 is meshed with the first driven gear 5, thereby driving the line-releasing device 4 to release the line. When winding the line, driven by the driving gear 3, the rotating shaft of the second driven gear 6 slides toward the slide groove 122, and the second driven gear 6 is gradually separated from the first driven gear 5, and the line is wound up independently by the reel 7, thereby avoiding the problem of pulling the cable between the line-releasing device 4 and the reel 7 due to inconsistent speeds when winding up the line at the same time, thereby avoiding the problem of cable pulling when winding up.

[0067] Embodiment 3

[0068] like Figure 2 , Figure 6 As shown, in an optional embodiment of the present invention, the center line of the slide groove 122 is arc-shaped, and the axis center of the output shaft of the drive motor 2 is the center of the circle.

[0069] In this embodiment, the second driven gear 6 can be rotated about the axis of the output shaft of the driving motor 2 so that the second driven gear 6 keeps meshing with the driving gear 3. When releasing the line, the driving gear 3 can smoothly push the rotating shaft of the second driven gear 6 into the shaft hole 121.

[0070] Embodiment 4

[0071] like Figure 2 , Figure 6 As shown, in an optional embodiment of the present invention, the width of the slide groove 122 is equal to the diameter of the shaft hole 121.

[0072] The diameter of the shaft hole 121 is slightly larger than the shaft of the second driven gear 6 so that the second driven gear 6 can stably rotate in the shaft hole 121. The width of the slide groove 122 is set equal to the diameter of the shaft hole 121 so that the shaft of the second driven gear 6 can rotate in the slide groove 122 and the sliding can be ensured to have small jumping and smooth sliding.

[0073] Embodiment 5

[0074] like Figure 1-Figure 5 As shown, the automatic threading machine provided by the present invention also includes:

[0075] A ratchet 81 for winding the cable, wherein the ratchet 81 is coaxial with the reel 7 and can rotate relative to it;

[0076] A ratchet 82 mounted on the reel 7, the ratchet 82 meshing with the ratchet 81, and an end of the ratchet 82 facing in the opposite direction to the unwinding direction of the reel 7;

[0077] The elastic member 83 provides a retaining force for the pawl 82 to mesh with the ratchet wheel 81 .

[0078] Specifically, the elastic member 83 can be a spring and a torsion spring. An inner ring is provided inside the reel 7. The ratchet 81 is sleeved on the inner ring and can rotate relative to the reel 7. The ratchet 81 is used for winding the cable.

[0079] For the convenience of explanation, the embodiment of the present invention is illustrated by taking the illustrated direction as an example. The counterclockwise direction and the clockwise direction described in the embodiment can be adjusted according to the direction of cable winding, but are not limited thereto.

[0080] like Figure 3 As shown, when releasing the wire, the wire release device 4 releases the wire, pulls the cable, and the reel 7 rotates counterclockwise. The rotation of the reel 7 and the tension of the cable can drive the ratchet 81 to rotate. Because the end of the ratchet 82 is opposite to the releasing direction of the reel 7, when the cable between the wire release device 4 and the reel 7 is redundant, the tension of the cable has no effect on the ratchet 81, and the ratchet 82 also has no effect on the ratchet 81, and the ratchet 81 does not rotate. At this time, the ratchet 81 is coaxial with the reel 7 and can rotate relatively. The reel 7 can continue to rotate, and the wire release device 4 continues to release the wire. When the cable redundancy is cleared, the tension of the cable acts on the ratchet 81, causing the ratchet 81 to rotate, and the reel 7 rotates, which can reduce the wire release force of the wire release device 4 when releasing the wire. When winding up, under the action of the ratchet 82, the ratchet 81 and the reel 7 rotate synchronously in the clockwise direction to achieve winding up.

[0081] Therefore, when paying out the line, when there is redundant cable between the pay-out device 4 and the reel 7, the ratchet 81 is coaxial with the reel 7 and can rotate relative to each other. At this time, the reel 7 can rotate idle, and the ratchet 81 does not rotate or pay out the line. The redundant cable is paid out by the pay-out device 4. When there is no redundant cable, the cable is straightened, and the reel 7 and the cable pull the ratchet 81 to rotate, and the ratchet 81 rotates again to pay out the line; when winding up the line, under the action of the pawl 82, the ratchet 81 and the reel 7 rotate synchronously in the clockwise direction to achieve winding up.

[0082] Of course, multiple ratchet 82 can be provided, and when the reel 7 rotates counterclockwise to release the line, the ends of the multiple ratchet 82 face clockwise. When multiple ratchet 82 are provided, when the reel 7 and the cable pull the ratchet 81 to rotate, the multiple ratchet 82 applies force from multiple positions, and the ratchet 81 rotates more smoothly.

[0083] The embodiment of the present invention arranges a ratchet 81 and a pawl 82 to wind the cable around the ratchet 81. When cable redundancy occurs during line payout, the reel 7 continues to rotate, but the ratchet 81 does not rotate or pay out the line. After the line payout device 4 has paid out the redundant cable, the ratchet 81 rotates again to pay out the line driven by the reel 7 and the cable, thereby eliminating the problem of cable redundancy caused by asynchronous line payout. When winding up the line, under the action of the pawl 82, the ratchet 81 rotates synchronously with the reel 7 to achieve line winding.

[0084] Embodiment 6

[0085] like Figure 3 , Figure 5 As shown, in an optional embodiment of the present invention, the toothed surface of the ratchet wheel 81 is arranged on the inner edge of the ratchet wheel 81 .

[0086] The pawl 82 meshes with the ratchet 81 on the inner edge, which can free the outer edge of the ratchet 81 to provide a larger space for winding the cable, and can also prevent the cable from being wound around the toothed surface of the ratchet 81 during the winding process, affecting the meshing of the pawl 82 and the ratchet 81.

[0087] Embodiment 7

[0088] like Figure 3 , Figure 4 , Figure 5 , Fig. 9 As shown, in an optional embodiment of the present invention, a first positioning column 72 for mounting the pawl 82 is provided on the reel 7 .

[0089] A mounting hole is provided on the pawl 82, and the pawl 82 is sleeved on the first positioning column 72 and can rotate. In order to prevent the pawl 82 from falling off the first positioning column 72 easily, the diameter of the first positioning column 72 can be made close to the diameter of the mounting hole, and a transition fit is adopted to ensure that there is a smaller friction between the first positioning column 72 and the mounting hole, so that the pawl 82 cannot fall off the first positioning column 72 easily.

[0090] like Figure 3 , Figure 5 As shown, in an optional embodiment of the present invention, the elastic member 83 is a torsion spring, the reel 7 is provided with a second positioning column 73 for mounting the torsion spring, a baffle 74 is further provided beside the second positioning column 73, one end of the torsion spring abuts against the pawl 82, and the other end abuts against the baffle 74. The torsion spring applies a pressing force to the pawl 82, so that the pawl 82 and the ratchet 81 remain in meshing state.

[0091] A transition fit or interference fit is adopted between the torsion spring and the second positioning column 73 , so that there is a large friction force between the torsion spring and the second positioning column 73 , so that the torsion spring cannot fall off from the second positioning column 73 easily.

[0092] Embodiment 8

[0093] like Figure 3 , Figure 8 As shown, in an optional embodiment of the present invention, the pay-off device 4 includes an active pay-off wheel 41 and a driven pay-off wheel 42 rotatably mounted on the frame 1, the active pay-off wheel 41 and the driven pay-off wheel 42 are arranged side by side with a gap for the cable to pass through, and the first driven gear 5 is coaxial with the active pay-off wheel 41 and rotates synchronously.

[0094] The active pay-off wheel 41 is driven by the driving motor 2 to rotate, and the driven pay-off wheel 42 is driven by the active pay-off wheel 41 and the cable to rotate. The gap between the active pay-off wheel 41 and the driven pay-off wheel 42 is slightly larger than the diameter of the cable. The cable passes through the gap between the active pay-off wheel 41 and the driven pay-off wheel 42. There is friction between the cable and the active pay-off wheel 41 and the driven pay-off wheel 42. When the active pay-off wheel 41 rotates, it can drive the cable to move and the driven pay-off wheel 42 to rotate, so as to realize pay-off.

[0095] Embodiment 9

[0096] like Figure 3 , Figure 8 As shown, in an optional embodiment of the present invention, the automatic threading machine further includes an adjusting device 9 for adjusting the gap between the active pay-off wheel 41 and the driven pay-off wheel 42 .

[0097] The adjusting device 9 is used to adjust the size of the gap between the active pay-off wheel 41 and the driven pay-off wheel 42, thereby adjusting the friction between the cable and the active pay-off wheel 41 and the driven pay-off wheel 42, thereby adjusting the smoothness of the cable movement when winding or releasing the line. The size of the gap between the active pay-off wheel 41 and the driven pay-off wheel 42 can also be adjusted to enable the automatic threading machine to use cables of different wire diameters.

[0098] Embodiment 10

[0099] like Figure 8 As shown, in an optional embodiment of the present invention, the adjusting device 9 includes an adjusting rod 91 with a thread on the end thereof and a sleeve 92 sleeved on the rotating shaft of the driven pay-off wheel 42, a threaded hole extending outwardly from the circumference of the sleeve 92, a through hole 111 is provided on the frame 1, and an adjusting handle 911 is provided at the other end of the adjusting rod 91, and the adjusting rod 91 passes through the through hole 111 and is screwed to the threaded hole of the sleeve 92.

[0100] Specifically, the sleeve 92 includes a sleeve connection portion 921, a avoidance portion 922 and a threaded portion 923. The sleeve connection portion 921 is sleeved on the rotating shaft of the driven pay-off wheel 42. The avoidance portion 922 connects the sleeve connection portion 921 and the threaded portion 923 and can avoid the rotating shaft of the active pay-off wheel 41. A threaded hole is provided in the threaded portion 923 and is threadedly connected to the adjusting rod 91.

[0101] One end of the adjusting rod 91 is provided with a thread, which is screwed to the threaded hole of the sleeve 92, and the other end is provided with an adjusting handle 911. The outer size of the adjusting handle 911 is larger than the size of the through hole 111. By rotating the adjusting handle 911, the position of the driven pay-off wheel 42 can be adjusted, and then the size of the gap between the active pay-off wheel 41 and the driven pay-off wheel 42 can be adjusted.

[0102] Embodiment 11

[0103] like Fig. 9 As shown, in an optional embodiment of the present invention, the frame 1 includes a main support 11, a handle upper cover 12 and a handle lower cover 13, the drive motor 2 and the reel 7 are installed on the main support 11, and the shaft hole 121 and the slide groove 122 are arranged on the handle upper cover 12. In the present invention, the shaft hole 121 and the slide groove 122 can also be arranged on the handle lower cover 13. The main support 11 is the main support of the automatic threading machine, which is used to bear gravity and install various components. The handle upper cover 12 and the handle lower cover 13 are used to cover various gears, motors, etc.

[0104] Embodiment 12

[0105] like Fig. 9 As shown, in an optional embodiment of the present invention, the reel 7 includes an upper shell and a lower shell. The main support 11 is provided with convex rings 112 on both sides, and the upper shell and the lower shell are provided with annular grooves 75, and the annular grooves 75 are clamped on the convex rings 112.

[0106] In this embodiment, the upper shell and the lower shell are symmetrical structures, and the upper shell and the lower shell can be the same component of the same structure, reducing the number of parts. The convex rings 112 on both sides of the main bracket 11 can also be symmetrically arranged. The convex ring 112 can be a complete circular ring or a discontinuous approximately circular ring structure. The structure of the annular groove 75 is adapted to the structure of the convex ring 112, and they cooperate with each other. The thickness of the convex ring 112 can be slightly smaller than the width of the annular groove 75, so that there is a small amount of gap when the convex ring 112 cooperates with the annular groove 75, so that the reel 7 can rotate when installed on the frame 1, and the convex ring 112 is equivalent to a rotating shaft. Using the convex ring 112 is equivalent to using a rotating shaft with a relatively large diameter, which can make the reel 7 rotate more smoothly.

[0107] In the embodiment of the present invention, a first driven gear for driving the pay-off device to pay-off the line and a second driven gear respectively meshed with the driving gear and the first driven gear are provided, and a ring gear meshed with the driving gear is provided on the outer edge of the reel, so that the driving motor can simultaneously drive the pay-off device to pay-off the line and the reel to reel in the line through the driving gear. The present application uses a set of driving to realize reeling and pay-off, which has a simple structure and low cost. In the embodiment of the present invention, a slide groove connected to the shaft hole is provided. When paying off the line, the rotating shaft of the second driven gear is provided in the shaft hole, and the second driven gear is meshed with the first driven gear, thereby driving the pay-off device to pay-off the line. When reeling in the line, the rotating shaft of the second driven gear slides toward the slide groove under the drive of the driving gear, and the second driven gear is gradually separated from the first driven gear, and the reel is independently reeled in, thereby avoiding the problem of pulling the cable between the pay-off device and the reel due to the inconsistent speed caused by the simultaneous reeling in the line, thereby avoiding the problem of cable pulling when reeling in the line. The embodiment of the present invention winds the cable around the ratchet by setting a ratchet and a pawl. When cable redundancy occurs during the pay-off, the reel continues to rotate, but the ratchet does not rotate and does not pay out the cable. After the pay-off device has paid out the redundant cable, the ratchet rotates again to pay out the cable driven by the reel and the cable, thereby eliminating the problem of cable redundancy caused by asynchronous pay-off. When winding the cable, the ratchet rotates synchronously with the reel under the action of the pawl to achieve winding. The adjustment device is used to adjust the size of the gap between the active pay-off wheel and the driven pay-off wheel, thereby adjusting the friction between the cable and the active pay-off wheel and the driven pay-off wheel, thereby adjusting the smoothness of the cable movement during winding or paying out the cable. The size of the gap between the active pay-off wheel and the driven pay-off wheel can also be adjusted to enable the automatic threading machine to use cables of different wire diameters.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic threading machine, characterized in that: include: frame; A driving motor mounted on the frame, wherein an output shaft of the driving motor is provided with a driving gear; a wire-paying device mounted on the frame; A first driven gear driving the wire-releasing device to release the wire, wherein the first driven gear is driven by the driving gear; A reel rotatably mounted on the frame, wherein the outer edge of the reel is provided with a ring gear meshing with the driving gear; A ratchet for winding the cable, the ratchet and the reel being coaxial and relatively rotatable; A pawl mounted on the reel, the pawl meshing with the ratchet, and an end of the pawl facing in the opposite direction to the unwinding direction of the reel; The elastic member provides a retaining force for the pawl to mesh with the ratchet wheel.

2. The automatic threading machine according to claim 1, characterized in that: The frame is provided with an axial hole and a slide groove connected to the axial hole; The automatic threading machine further comprises a second driven gear respectively meshing with the driving gear and the first driven gear; When releasing the line, the rotating shaft of the second driven gear is arranged in the shaft hole, and the second driven gear is meshed with the first driven gear; When the line is taken up, driven by the driving gear, the rotating shaft of the second driven gear slides toward the sliding groove, and the second driven gear is gradually separated from the first driven gear.

3. The automatic threading machine according to claim 2, characterized in that: The center line of the slide groove is arc-shaped, and the axis center of the output shaft of the driving motor is taken as the center of the circle.

4. The automatic threading machine according to claim 3, characterized in that: The width of the slide groove is equal to the diameter of the shaft hole.

5. The automatic needle threading machine according to claim 1, characterized in that: The toothed surface of the ratchet is disposed on an inner edge of the ratchet.

6. The automatic needle threading machine according to claim 1, characterized in that: The elastic member is a torsion spring, the reel is provided with a first positioning column for mounting the pawl and a second positioning column for mounting the torsion spring, a baffle is further provided beside the second positioning column, one end of the torsion spring abuts against the pawl, and the other end abuts against the baffle.

7. The automatic needle threading machine according to claim 1, characterized in that: The pay-off device comprises an active pay-off wheel and a driven pay-off wheel rotatably mounted on the frame, the active pay-off wheel and the driven pay-off wheel are arranged side by side with a gap for the cable to pass through, and the first driven gear is coaxial with the active pay-off wheel and rotates synchronously.

8. The automatic needle threading machine according to claim 7, characterized in that: The automatic threading machine also includes an adjusting device for adjusting the gap between the active pay-off wheel and the driven pay-off wheel.

9. The automatic needle threading machine according to claim 2, characterized in that: The frame comprises a main support, a handle upper cover and a handle lower cover, the driving motor and the reel are mounted on the main support, and the shaft hole and the slide groove are arranged on the handle upper cover.

10. The automatic needle threading machine according to claim 9, characterized in that: The reel comprises an upper shell and a lower shell, convex rings are arranged on both sides of the main support, annular grooves are arranged on the upper shell and the lower shell, and the annular grooves are clamped on the convex rings.

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