Wire winding mechanism capable of drawing and feeding wires through synchronous belt and bottom lifting device

Abstract

The utility model relates to a synchronous belt wire drawing and feeding wire winding mechanism and a bottom lifting device, which comprise a threading plate, a wire winding mechanism and a detection mechanism, a wire feeding bottom plate of the wire winding mechanism is provided with a wire loading disc, a synchronous wheel and a synchronous belt, a steel wire is arranged in a wire threading pipe in a penetrating manner, one end of the wire threading pipe is fixed close to the wire loading disc, and the other end of the wire threading pipe is provided with the detection mechanism. A driving gear on a motor drives a synchronous belt to rotate, the synchronous belt drives a wire loading disc to rotate, a steel wire is clamped between the outer circumferential wall of the wire loading disc and the synchronous belt, and the wire outlet end of the steel wire penetrates through a wire guide pipe to be fed; and the control system can know that the steel wire is drawn. According to the designed scheme, the service life of the steel wire and the gear is prolonged, the structural design of the detection mechanism is simplified, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a bottoming device of a flat knitting machine, in particular to a wire winding mechanism for synchronous belt feeding wire and a bottoming device. Background Art

[0002] The bottoming device of the knitting machine mainly includes a threading mechanism and a wire winding mechanism, wherein the wire winding mechanism sends out the steel wire during the bottoming process, so that the steel wire passes through each bottoming coil, and pulls the bottoming coil to realize the bottoming weaving; after the bottoming is completed, the wire winding mechanism withdraws the steel wire, so that the steel wire withdraws from each bottoming coil. The wire winding mechanism in the prior art is mainly composed of a wire feeding base plate, a wire winding disk and a wire guide wheel. For example, the structure adopted by the "wire winding device" disclosed in the utility model patent with announcement number CN220977313U, the steel wire is wound on the wire winding disk, and the steel wire is clamped by the relatively arranged wire guide wheel to realize the drawing of the steel wire. This scheme is also the structure commonly adopted by the wire winding mechanism in the current prior art, but this structural layout is slightly complicated, and the installation accuracy of the wire guide wheel is required to be high, and the manufacturing cost is difficult to reduce. The steel wire is also affected by repeated friction and extrusion, which also affects its service life.

[0003] In order to reduce manufacturing costs and increase the service life of steel wire, some designers have adopted a belt pressing wire feeding method to replace the above-mentioned wire guide wheel clamping wire feeding scheme. For example, two patents with announcement number CN219490310U and publication number CN115897041A both adopt a belt pressing wire feeding structure. However, both patents have the following common defects:

[0004] (1) The steel wire is wound on a wire reel, and the wire drawing and feeding are completed by rotating the wire reel in different directions. During this process, the steel wire is repeatedly retracted and released, and is very likely to deform and bend, which will increase the friction when the steel wire passes through the needle eye, thereby accelerating the wear of the needle eye and the steel wire, which has a significant impact on the life of the steel wire.

[0005] (2) In the above patent, the motor drives the wire winding disk to rotate, and the wire winding disk drives the belt to move synchronously. Since the wire winding disk needs to store the steel wire, a toothed disk needs to be provided on the wire winding disk to mesh with the gear on the motor. This results in that the thickness of the toothed disk on the wire winding disk needs to be made relatively thin within the limited installation space, which results in a very small contact area between the gear on the motor and the toothed disk on the wire winding disk, which reduces the service life of the gear.

[0006] (3) Based on the structures in (1) and (2) above, the steel wire is drawn and fed by the extrusion of the belt and the wire reel. Since the steel wire is wound and stored on the wire reel, the end of the steel wire needs to be fixed on the wire reel. According to the transmission method in (2) above, at the moment of wire feeding, the wire reel rotates first, and then the belt is driven by the wire reel to rotate. Under the influence of inertia, the wire reel and the belt will have relative displacement at the moment of starting. Since the end of the steel wire is fixed, the steel wire will be stressed during this process. At the same time, when the belt transmission resistance is large, the steel wire will also be stressed due to the asynchronism between the wire reel and the belt. Therefore, the steel wire of this transmission structure is prone to breakage at the fixed end.

[0007] (4) Regarding the monitoring of whether the wire drawing is completed, the above patents are all controlled by sensors, that is, mainly achieved by the coordination of the spiral groove, the slider assembly and the sensor. This monitoring mechanism needs to have a higher sensing accuracy, and high sensing accuracy requires a smaller matching gap to ensure, so this structural design increases the processing difficulty to a certain extent. Utility Model Content

[0008] The utility model firstly discloses a wire winding mechanism, which also adopts a synchronous belt pressing method to realize wire feeding. However, in the structure designed by the utility model, the steel wire does not need to be stored on a wire loading disc, and will not be deformed or bent. In addition, the transmission method is more reasonable, which significantly improves the service life of the gears and the steel wire.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A wire winding mechanism for synchronous belt wire drawing and feeding comprises a wire feeding base plate, a wire threading tube, a synchronous belt, and a wire loading disk, a synchronous wheel, a tensioning wheel and a motor respectively installed on the wire feeding base plate, a driving gear is installed at the end of the output shaft of the motor, the synchronous belt is closed from beginning to end and surrounds the outer circumference of the synchronous wheel, the tensioning wheel, the driving gear and the wire loading disk, the steel wire is stored in the wire threading tube, the wire outlet end of the wire threading tube is arranged near the wire loading disk, the steel wire extends out from the wire outlet end of the wire threading tube and is clamped between the synchronous belt and the wire loading disk, a detection mechanism is arranged at the tail end of the wire threading tube, and a signal of wire drawing completion is triggered when the steel wire extends out from the tail end of the wire threading tube and touches the detection mechanism.

[0011] Furthermore, the synchronous belt has a tooth portion, and the two side edges on the outer circumference of the wire loading disk are also provided with tooth portions. The synchronous belt is meshed with the driving gear, and the synchronous belt is meshed with the wire loading disk.

[0012] Furthermore, multiple synchronous wheels are arranged along the outer circumference of the wire loading disk. From the starting position of the wire outlet end of the wire on the wire loading disk, the first synchronous wheel, the tensioning wheel, the driving gear, the second synchronous wheel, the third synchronous wheel and the fourth synchronous wheel are arranged in sequence on the outer circumference of the wire loading disk in a clockwise direction.

[0013] Furthermore, an adjustment slot is provided on the wire feeding base plate, and a fixed block and an adjustment rod are provided on the back of the wire feeding base plate. The fixed block is fixed on the wire feeding base plate, and a through hole is provided on the fixed block. The adjustment rod passes through the through hole, and limit blocks are respectively provided at both ends of the adjustment rod. The limit block at one end of the adjustment rod is connected to the rotating shaft of the tensioning wheel, and the tensioning wheel can move along the adjustment slot to adjust the tension.

[0014] Furthermore, the detection mechanism includes a sensing seat and a sensing sheet. The sensing seat is provided with a tube hole, the tail end of the wire tube is inserted into the tube hole, the sensing sheet is fixed on the sensing seat facing the tube hole, and the sensing sheet is connected to the control system by electrical signals.

[0015] Further, the induction sheet includes a first connecting sheet, a second connecting sheet and a third connecting sheet connected end to end in sequence, the second connecting sheet and the third connecting sheet are both located at the lower part of the first connecting sheet, the second connecting sheet is parallel to and fits with the first connecting sheet, the third connecting sheet is arranged obliquely with respect to the first connecting sheet, and a fixing hole is provided at the fitting part of the first connecting sheet and the second connecting sheet;

[0016] The induction seat comprises a wire threading tube fixing part and an induction sheet fixing part, a tube threading hole is provided on the wire threading tube fixing part, an upper clamping groove and a lower clamping groove are respectively provided on the side wall of the wire threading tube fixing part adjacent to the induction sheet fixing part, the tube threading hole is between the upper clamping groove and the lower clamping groove, and a connecting section between the wire threading tube fixing part and the induction sheet fixing part has an inclined surface;

[0017] The first connecting piece of the sensing piece is inserted into the upper slot, the third connecting piece is fitted on the inclined surface and inserted into the lower slot, and the fitting parts of the first connecting piece and the second connecting piece are fixed on the fixing part of the sensing piece.

[0018] Furthermore, a clearance groove is provided on the fixing portion of the wire threading tube, and the clearance groove is respectively connected with the upper clamping groove and the tube threading hole.

[0019] Furthermore, a tube fixing seat is provided on the wire feeding bottom plate, an embedding groove is provided on the top surface of the tube fixing seat along the wire feeding direction, a wire guide tube is provided in the embedding groove, and the wire outlet end of the steel wire extends into the wire guide tube.

[0020] The utility model also discloses a bottoming device, including a threading plate and the above-mentioned wire winding mechanism, a lead plate is arranged on one side of the threading plate, the wire winding mechanism is installed on the threading plate and adjacent to one side of the lead plate, and the detection mechanism is installed on the back of the threading plate and away from one end of the lead plate.

[0021] Furthermore, a tube buckle seat is provided on the back side of the wire feeding base plate, and the wire threading tube passes through the tube buckle seat and is fixed to the wire feeding base plate through the tube buckle seat.

[0022] The wire winding mechanism designed in the utility model is different from the prior art in terms of its transmission mode and structure for detecting whether the wire drawing is completed. The wire loading disc in the utility model only serves to draw the wire, while the wire loading disc in the prior art also serves to store the wire. The wire in the utility model is clamped by the wire loading disc and the synchronous belt and then inserted into the naturally curved wire threading tube for storage. The wire is always in a relatively natural state, which makes it difficult for the wire to deform and bend, and its service life is significantly increased. In addition, the end of the wire in the utility model is not fixed, and the problem of breakage of the fixed end of the wire due to force will not occur.

[0023] The wire winding mechanism of the utility model is that the driving gear on the motor drives the synchronous belt to rotate, and the synchronous belt drives the wire loading disk to rotate, so that the contact surface between the driving gear and the synchronous belt becomes larger, and the service life of the gear can be significantly extended.

[0024] The detection mechanism in the utility model is realized by the cooperation of the wire threading tube, the induction seat and the induction sheet, and does not need to adopt a magnetic sensor. Compared with the detection mechanism in the prior art, the structure is simpler, and the disassembly and assembly are very convenient, which is conducive to reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front structure of the bottom lifting device in the embodiment;

[0026] Figure 2 It is a schematic diagram of the back structure of the bottom lifting device in the embodiment;

[0027] Figure 3 This is a front structural diagram of the wire winding mechanism in the bottoming device;

[0028] Figure 4 for Figure 3 Schematic diagram after removing the wire reel;

[0029] Figure 5 This is a back structural diagram of the wire winding mechanism in the bottoming device;

[0030] Figure 6 It is a partial enlarged view of the detection mechanism in the bottom lifting device;

[0031] Figure 7 It is a structural schematic diagram of the induction seat in the detection mechanism;

[0032] Figure 8 It is a structural schematic diagram of the induction sheet in the detection mechanism;

[0033] Fig. 9 It is a schematic diagram of the structure of the wire reel in the wire winding mechanism.

[0034] Description of Figure Numbers:

[0035] 1. Threading board;

[0036] 2. Thread the wire tube;

[0037] 3. Wire winding mechanism; 31. Wire feeding bottom plate; 32. Wire loading disc; 321. Tooth; 322. Wire guide; 33A / 33B / 33C / 33D. Synchronous wheel; 34. Tensioning wheel; 341. Fixing block; 342. Adjusting rod; 343. Adjusting long slot; 344. Limiting block; 345. Limiting block; 35. Motor; 36. Driving gear; 37. Synchronous belt; 38. Pipe fixing seat; 39. Alarm spring;

[0038] 4. Pipe buckle seat;

[0039] 5. Detection mechanism; 51. Induction seat; 511. Main body; 512. Induction sheet fixing part; 513. Wire threading tube fixing part; 514. Inclined surface; 515. Pipe threading hole; 516. Lower card slot; 517. Upper card slot; 518. Fixing hole; 519. Fixing hole; 52. Induction sheet; 521. First connecting sheet; 522. Second connecting sheet; 523. Third connecting sheet; 524. Fixing hole;

[0040] 6. Wire guide tube. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0042] This embodiment discloses a bottoming device for a knitting machine, wherein the wire winding mechanism in the bottoming device realizes the drawing and feeding of the steel wire by means of synchronous belt pressing. Figure 1 As shown ( Figure 1 The outer cover of the winding mechanism 3 has been removed in the figure), the bottoming device mainly includes a threading plate 1 and a winding mechanism 3, the threading plate 1 is assembled from a plurality of threading unit plates, and the threading plate 1 is assembled from a plurality of threading unit plates. Figure 1 From the left to the right, there are the threading unit board C1, two threading unit boards B1 and the threading unit board A1, and the lead board is assembled on one side of the threading unit board A1. The winding mechanism 3 is fixedly installed at the lower part of the threading plate 1 and close to one side of the threading unit board A1. In this embodiment, the structure of the winding mechanism 3 and the detection mechanism 5 are mainly improved and designed, which are described in detail in conjunction with the specific drawings below.

[0043] like Figure 3 and Figure 4 As shown, the wire winding mechanism 3 mainly includes a wire feeding base plate 31, and a wire loading disc 32 is installed in the middle of the front of the wire feeding base plate 31. The structure of the wire loading disc 32 is as shown in FIG. Fig. 9As shown, teeth 321 are formed on both sides of the outer circumferential wall of the wire loading disk 32 near the edge, and a wire guide 322 is formed between the teeth 321 on both sides. A plurality of synchronous wheels and a tensioning wheel 34 are arranged on the front side of the wire feeding base plate 31 along the outer circumference of the wire loading disk 32. In this embodiment, Figure 3 The direction shown is for reference. The wire is fed in the direction of the upper right corner. From the starting position of the wire feeding end, the wire is rotated clockwise along the outer circumference of the wire loading disk 32. The first synchronous wheel 33C, the tensioning wheel 34, the driving gear 36, the second synchronous wheel 33B, the third synchronous wheel 33A and the fourth synchronous wheel 33D are arranged in sequence along the outer circumference of the wire loading disk 32. The motor 35 is installed on the back of the wire feeding base plate 31, so that the output shaft of the motor 35 extends out of the front of the wire feeding base plate 31, and the driving gear 36 is installed at the end of the output shaft of the motor 35. The synchronous belt 37 with teeth and a closed shape is sequentially wound around the outer circumference of each of the above-mentioned synchronous wheels and the tensioning wheel 34. At this time, the wire loading disk 32 is located outside the annular closed area surrounded by the synchronous belt 37 (see Figure 4 ), so that the synchronous belt 37 is meshed with the outer circumferential tooth portion 321 of the wire loading disk 32. In this embodiment, the motor 35 is used to drive the driving gear 36 to rotate, and the driving gear 36 drives the synchronous belt 37 to rotate, and the synchronous belt 37 drives the wire loading disk 32 to rotate.

[0044] Continuing with the above introduction, a tube fixing seat 38 is fixed on the right side of the chassis 32 on the front side of the wire feeding base plate 31. An embedding groove is opened on the top surface of the tube fixing seat 38 along the wire feeding direction and an alarm spring 39 is installed. The wire guide tube 6 is fixed in the embedding groove. When the steel wire is fed, it passes through the alarm spring 36 along the wire guide tube 6 for wire feeding.

[0045] The wire loading disc 32 in this embodiment only serves to pump the steel wire, and the steel wire does not need to be wound and stored on the wire loading disc 32. Therefore, a long wire threading tube 2 with a natural curvature for accommodating the steel wire is also provided in this embodiment. Figure 3 As shown, the head end of the threading tube 2 is fixed on the tube fixing seat 38, and the head end of the threading tube 2 is close to the wire loading disc 32 and the fourth synchronous wheel 33D. Figure 2 As shown, the tail end of the wire threading tube 2 is fixed on the back of the threading plate 1 near the threading unit plate C1, and a detection mechanism 5 is installed on one side of the tail end of the wire threading tube 2. The head and tail ends of the wire threading tube 2 are also fixed to the back of the wire feeding base plate 31 through a tube buckle seat 4, so that the wire threading tube 2 can be in a naturally curved shape. After the above structure is set, only a small section of the steel wire needs to be wound along the steel wire guide portion 322 of the wire loading disk 32, so that it is clamped by the synchronous belt 37 and the wire loading disk 32 to realize wire drawing and wire feeding. The wire outlet end of the steel wire is inserted into the wire guide tube 6, and the remaining steel wire after winding along the steel wire guide portion 322 of the wire loading disk 32 is inserted into the wire threading tube 2.

[0046] The adjustment structure of the tensioning wheel 34 is arranged as follows Figure 5 As shown, an adjustment slot 343 is provided on the wire feeding base plate 31, a fixing block 341 and an adjustment rod 342 are provided on the back of the wire feeding base plate 31, the fixing block 341 is fixed to the back of the wire feeding base plate 31 by bolts, and a through hole is provided on the fixing block 341, so that the adjustment rod 342 passes through the through hole, and the adjustment rod 342 can move relatively along the through hole. In order to prevent the adjustment rod 342 from falling off the fixing block 341, a limit block 344 and a limit block 345 are provided at both ends of the adjustment rod 342, so that the limit block 345 is connected to the bottom of the rotating shaft of the tensioning wheel 34. When the tension of the tensioning wheel 34 needs to be adjusted, the position of the tensioning wheel 34 relative to the adjustment slot 343 can be adjusted by pulling the adjustment rod 342, and after the position is adjusted, the adjustment rod 343 can be locked by the adjustment nut so that it cannot move.

[0047] The detection mechanism 5 used in this embodiment to monitor whether the wire drawing is completed is greatly simplified in structure and easier to install compared to the method of using magnetic sensors in the prior art. Figure 6 As shown in FIG. 5 , the structure of the induction seat 51 is mainly composed of an induction seat 51 and an induction sheet 52. Figure 7 As shown, the body 511 of the induction seat 51 can be divided into a threading tube fixing part 513 and a sensor sheet fixing part 512. The threading tube fixing part 513 is provided with a fixing hole 519. The induction seat 51 is fixedly installed on the back of the threading plate 1 by passing a bolt through the fixing hole 519. The threading tube fixing part 513 is connected to the sensor sheet fixing part 512 and a gap is provided between the two. The threading tube fixing part 513 is provided with an upper groove 517 and a lower groove 516 on the side wall facing the sensor sheet fixing part 512. A tube hole 515 is provided between the upper groove 517 and the lower groove 516. The threading tube fixing part 513 is provided with a clearance groove from the top surface to the bottom direction. The clearance groove is mutually connected with the upper groove 517 and the tube hole 515. The top surface of the connecting section of the threading tube fixing part 513 and the sensor sheet fixing part 512 is an inclined surface 514, and a fixing hole 518 is provided on the top surface of the sensor sheet fixing part 512. The structure of the sensor sheet 52 is as follows: Figure 8 As shown, the sensing sheet 52 is a sheet structure formed by bending, and the sensing sheet 52 is composed of a first connecting sheet 521, a second connecting sheet 522 and a third connecting sheet 523 which are connected end to end in sequence, wherein the second connecting sheet 522 and the third connecting sheet 523 are both located at the lower part of the first connecting sheet 521, the second connecting sheet 522 is parallel to the first connecting sheet 521 and fits each other, the third connecting sheet 523 is inclined downward relative to the first connecting sheet 521, and a through fixing hole 521 is opened in the fitting part between the first connecting sheet 521 and the second connecting sheet 522.

[0048] The assembly method of the sensor base 51 and the sensor sheet 52 is as follows: Figure 6As shown, the sensing sheet 52 is installed on the sensing sheet fixing portion 512 of the sensing base 51, the end of the first connecting sheet 521 is embedded in the upper groove 517, the third connecting sheet 523 is fitted to the inclined surface 514, and the end of the third connecting sheet 523 is inserted into the lower groove 516, and the sensing sheet 52 is fixed with bolts passing through the fixing holes 524 and 518, and the tail end of the wire threading tube 2 is inserted into the tube hole 515 from the outside of the sensing base 51 and fixed.

[0049] The process of the wire winding mechanism 3 of the utility model to realize the wire drawing and feeding is described as follows: Figure 3 The direction shown is for reference. When the output shaft of the motor 35 drives the driving gear 36 to rotate in the counterclockwise direction, the synchronous belt 37 rotates in the clockwise direction, and the wire loading disk 32 rotates in the counterclockwise direction. The steel wire continuously extends from the wire threading tube 2, and starts to be fed along the wire guide tube 6 under the clamping of the synchronous belt 37 and the wire loading disk 32; when the output shaft of the motor 35 drives the driving gear 36 to rotate in the clockwise direction, the synchronous belt 37 rotates in the counterclockwise direction, and the wire loading disk 32 rotates in the clockwise direction, and the steel wire is continuously fed back into the wire threading tube 2. Once the tail end of the steel wire extends from the wire threading tube 2 near one end of the sensing seat 51, when the tail end of the extended steel wire touches the third connecting plate 523 of the sensing plate 52, the sensing plate 52 will feedback a detection signal to the control system. After the control system receives the detection signal, it indicates that the steel wire has completed the wire drawing process, and the motor 35 can be stopped.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire winding mechanism for synchronous belt wire feeding, characterized in that: It includes a wire feeding base plate, a wire threading tube, a synchronous belt, and a wire loading disk, a synchronous wheel, a tensioning wheel and a motor respectively installed on the wire feeding base plate. A driving gear is installed at the end of the output shaft of the motor. The synchronous belt is closed at both ends and surrounds the outer circumference of the synchronous wheel, the tensioning wheel, the driving gear and the wire loading disk. The steel wire is stored in the wire threading tube. The wire outlet end of the wire threading tube is arranged near the wire loading disk. The steel wire extends out from the wire outlet end of the wire threading tube and is clamped between the synchronous belt and the wire loading disk. A detection mechanism is arranged at the tail end of the wire threading tube. When the steel wire extends out from the tail end of the wire threading tube and touches the detection mechanism, a signal of wire drawing completion is triggered.

2. A wire winding mechanism for synchronous belt wire feeding according to claim 1, characterized in that: The synchronous belt has a tooth portion, and the edges on both sides of the outer peripheral surface of the wire loading disk are also provided with tooth portions. The synchronous belt is meshed with the driving gear, and the synchronous belt is meshed with the wire loading disk.

3. The wire winding mechanism for synchronous belt wire feeding according to claim 1, characterized in that: The synchronous wheels are arranged in plurality along the outer circumference of the wire loading disk. Starting from the starting position of the wire outlet end of the wire on the wire loading disk, the first synchronous wheel, the tensioning wheel, the driving gear, the second synchronous wheel, the third synchronous wheel and the fourth synchronous wheel are arranged in sequence on the outer circumference of the wire loading disk in a clockwise direction.

4. A wire winding mechanism for synchronous belt wire feeding according to claim 1, characterized in that: The wire feeding base plate is provided with an adjustment long groove, and a fixing block and an adjustment rod are provided on the back of the wire feeding base plate. The fixing block is fixed on the wire feeding base plate, and a through hole is provided on the fixing block. The adjustment rod passes through the through hole, and limit blocks are respectively provided at both ends of the adjustment rod. The limit block at one end of the adjustment rod is connected to the rotating shaft of the tensioning wheel, and the tensioning wheel can move along the adjustment long groove to adjust the tension.

5. The wire winding mechanism for synchronous belt wire feeding according to claim 1, characterized in that: The detection mechanism includes a sensing seat and a sensing sheet. The sensing seat is provided with a tube hole, the tail end of the wire tube is inserted into the tube hole, the sensing sheet is fixed on the sensing seat facing the tube hole, and the sensing sheet is connected to the control system electrical signal.

6. A wire winding mechanism for synchronous belt wire feeding according to claim 5, characterized in that: The induction sheet comprises a first connecting sheet, a second connecting sheet and a third connecting sheet which are connected end to end in sequence, the second connecting sheet and the third connecting sheet are both located at the lower part of the first connecting sheet, the second connecting sheet is parallel to and fits with the first connecting sheet, the third connecting sheet is arranged obliquely with respect to the first connecting sheet, and a fixing hole is provided at the fitting part of the first connecting sheet and the second connecting sheet; The induction seat comprises a wire threading tube fixing part and an induction sheet fixing part, a tube threading hole is provided on the wire threading tube fixing part, an upper clamping groove and a lower clamping groove are respectively provided on the side wall of the wire threading tube fixing part adjacent to the induction sheet fixing part, the tube threading hole is between the upper clamping groove and the lower clamping groove, and a connecting section between the wire threading tube fixing part and the induction sheet fixing part has an inclined surface; The first connecting piece of the sensing piece is inserted into the upper slot, the third connecting piece is fitted on the inclined surface and inserted into the lower slot, and the fitting parts of the first connecting piece and the second connecting piece are fixed on the fixing part of the sensing piece.

7. A wire winding mechanism for synchronous belt wire feeding according to claim 6, characterized in that: The fixing part of the threading tube is provided with a clearance groove, which is respectively connected with the upper clamping groove and the tube threading hole.

8. The wire winding mechanism for synchronous belt wire feeding according to claim 1, characterized in that: The wire feeding bottom plate is also provided with a tube fixing seat, the top surface of which is provided with an embedding groove along the wire feeding direction, a wire guide tube is arranged in the embedding groove, and the wire outlet end of the steel wire extends into the wire guide tube.

9. A bottom lifting device, characterized in that: It comprises a threading plate and a wire winding mechanism as described in any one of claims 1 to 8, wherein a lead plate is arranged on one side of the threading plate, the wire winding mechanism is installed on the threading plate and adjacent to one side of the lead plate, and the detection mechanism is installed on the back of the threading plate and away from one end of the lead plate.

10. The bottom lifting device according to claim 9, characterized in that: A tube buckle seat is provided on the back side of the wire feeding base plate, and the wire threading tube passes through the tube buckle seat and is fixed to the wire feeding base plate through the tube buckle seat.

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