A wire feeding tension adjusting device of a heating cable winding machine

Abstract

This invention relates to the field of heating cable manufacturing technology, specifically to a wire feeding tension adjustment device for a heating cable winding machine. A fixed frame erected on a horizontal winding machine allows cable wires to be wound sequentially onto a first feeding roller and a second feeding roller, and then guided out via a wire guide. When the cable wire tension increases, the second feeding roller is pulled upwards to overcome the rebound force of the elastic element. When the cable wire tension decreases, the second feeding roller is pulled downwards further by the rebound force of the elastic element, achieving stable tension adjustment during cable wire feeding. Simultaneously, as the cable wires in the wire guide are fed forward, dust and impurities on the surface are cleaned by cleaning pads tightly attached to both ends. While the first and second feeding rollers automatically and adaptively adjust and stabilize the tension, the cleaning pads move unidirectionally, avoiding prolonged contact between a single end of the cleaning pad and the cleaning wires, which reduces the cleaning effect and improves overall efficiency.

Description

Technical Field

[0001] This invention relates to the field of heating cable manufacturing technology, and in particular to a wire feeding tension adjustment device for a heating cable winding machine. Background Technology

[0002] Heating cables are cables used for heating or warming, typically composed of cold wires and hot wires. The hot wires are the heating part of the cable, forming the main body, and are generally made of metal or alloy wires. The cold wires are the connectors of the hot wires, used for conductive connection between the power source and the hot wires. Horizontal winding machines are typically used for winding or merging the cold and hot wires. During the wire feeding process, functional components such as tension adjustment units and wire cleaning units are usually included. For example, Chinese patent document CN105819276A discloses a tension balancing adjustment device and its usage method for merging cable core wires, including a balancing unit, a balancing linkage, and a tensioning unit. This device automatically balances the tension during core wire transmission, ensuring consistent core wire winding tightness and preventing core wire breakage. The phenomenon of cracking occurs. Chinese patent document CN113716392A discloses a high-efficiency cable production cleaning and winding equipment, which includes a machine housing cavity divided into a cleaning chamber and a winding chamber. The cleaning chamber is equipped with a cleaning mechanism, and the winding chamber is equipped with a winding mechanism. The cleaning mechanism includes an inlet port inserted through the side wall of the cleaning chamber. A cleaning box is slidably arranged in the inner cavity of the cleaning chamber at the horizontal position corresponding to the inlet port. The two sides of the cleaning box are not closed. The inside of the cleaning box is densely covered with soft brush filaments. This solves the problems of low cable winding efficiency, inconvenient cable discharge, and inability to clean the wound cable. However, in the prior art, the tension adjustment unit and the wire cleaning unit are often set up independently. The cleaning brushes are prone to dust accumulation, which reduces the cleaning effect and the overall work efficiency is not high. Summary of the Invention

[0003] In view of this, the purpose of this invention is to propose a wire feeding tension adjustment device for a heating cable winding machine, so as to solve the problems of the tension adjustment unit and wire cleaning unit being set up independently in the existing heating cable wire feeding preparation, the cleaning brushes being prone to dust accumulation, which reduces the cleaning effect and the overall work efficiency being low.

[0004] To achieve the above objectives, the present invention provides a wire feeding tension adjusting device for a heating cable winding machine, disposed at one end of the wire feeding end of a horizontal winding machine, comprising:

[0005] A fixed frame is erected on a horizontal wire winding machine. A first wire feeding roller is rotatably connected to the fixed frame. A side connecting rod is connected to the side end of the first wire feeding roller. A second wire feeding roller is connected to one end of the side connecting rod. An elastic element is connected between the first wire feeding roller and the fixed frame.

[0006] The cable conductor, mounted on a fixed frame, has cable wires sequentially wound around a first feed roller and a second feed roller, and guided out through the conductor. In the initial state, an elastic element pushes the first feed roller to rotate, causing the second feed roller to rotate to the side and below the first feed roller, thus keeping the cable wires taut. The conductor has symmetrically arranged movable cleaning parts at its upper and lower ends. Each movable cleaning part includes a support roller rotatably connected to the left and right ends of the conductor, and a cleaning pad tensioned and wound around the support rollers at both ends. The cable wires inside the conductor are attached between the cleaning pads at the upper and lower ends. A one-way transmission part is provided between the first feed roller and the conductor. When the first feed roller rotates in one direction, the one-way transmission part drives the upper support roller to rotate, causing the upper cleaning pad to move unidirectionally along the cable wire conveying direction. When the first feed roller rotates in the opposite direction, the one-way transmission part drives the lower support roller to rotate, causing the lower cleaning pad to move unidirectionally along the cable wire conveying direction.

[0007] Preferably, the end of the active cleaning section inside the wire guide is provided with a scraper assembly, which includes a dust collection box. The top of the dust collection box is provided with a dust collection port, and an elastic scraper is connected to one side of the dust collection port. The elastic scraper abuts against the cleaning pad and is used to scrape off dust and impurities on the cleaning pad.

[0008] Preferably, the first wire feeding roller includes a roller shaft and a roller body sleeved on the roller shaft. The roller body can rotate freely axially around the roller shaft. One end of the roller shaft is rotatably connected to a fixed frame, and the other end passes through the roller body and is fixedly connected to a side connecting rod. The side end of the second wire feeding roller is rotatably connected to the side connecting rod.

[0009] Preferably, a connecting platform is fixed on the fixed frame, one end of the roller shaft is rotatably connected to the connecting platform, an annular groove is provided on the connecting platform, an elastic element is provided in the annular groove, a radial rod is fixedly connected to the side end of the roller shaft, the radial rod passes through the annular groove and abuts against one end of the elastic element, the roller shaft rotates by pushing the radial rod through the elastic element, so that the second wire feeding roller rotates to the side and below the first wire feeding roller, so that the cable wire is in a taut state.

[0010] Preferably, a slider is slidably connected inside the annular groove, the end of the elastic element away from the radial rod is connected to the side end of the slider, and a positioning bolt is connected through the top of the slider, the positioning bolt passes through the bottom end of the slider and abuts against the inner bottom wall of the annular groove.

[0011] Preferably, the inner end of the roller extends through to the back of the fixed frame and is fixedly connected to the main gear. The one-way transmission part includes one-way ratchet parts located at the upper and lower ends on one side of the main gear. The one-way ratchet part includes a ratchet, and the outer ring of the ratchet is provided with an external gear ring that meshes with the main gear. A driven wheel is fitted inside the ratchet. A wedge is arranged around the inner ring of the ratchet, and a pawl is arranged around the outer ring of the driven wheel. The upper driven wheel is connected to the upper idler roller, and the lower driven wheel is connected to the lower idler roller, which is used to drive the idler roller to rotate synchronously.

[0012] Preferably, the cable guide is provided with a conduit at the inlet of the cable guide, and the outer end of the conduit is provided with an outwardly flared end, through which the cable wires are guided into the cable guide.

[0013] Preferably, the inner end of the conduit is rotatably connected to the conductor, and a torsion spring is provided at the rotatable connection. A transmission wheel is provided at the top of the conduit. When the roller rotates counterclockwise, the second wire feeding roller rotates upward, driving the conduit to rotate upward through the torsion spring until the transmission wheel abuts against the cleaning pad at the upper end. At this time, if the roller rotates clockwise rapidly, the driven wheel at the upper end of the transmission rotates counterclockwise synchronously, and the cleaning pad at the upper end of the transmission rotates rapidly, driving the transmission wheel to rotate synchronously, triggering the clamping of the cable wire inside the conduit.

[0014] Preferably, an upper clamp is fixedly provided at the top end of the conduit, and a lower clamp is movably provided at the bottom end of the conduit. The upper clamp has an inner groove in the middle that matches the lower clamp. A pull rope is wound on the guide wheel, and the pull rope is inserted into the conduit and connected to the lower clamp. When the guide wheel rotates in close contact with the cleaning pad, it drives the pull rope to rewind, so that the lower clamp moves up into the inner groove to clamp the cable wires.

[0015] Preferably, the outer ring of the transmission wheel is fitted with an anti-slip pad.

[0016] The beneficial effects of this invention are as follows: Using a fixed frame erected on a horizontal winding machine, cable wires are sequentially wound around a first feeding roller and a second feeding roller, and then guided out via a wire guide. Initially, the first feeding roller is rotated by an elastic element, causing the second feeding roller to rotate to the side and below the first feeding roller, thus keeping the cable wires taut. When the cable wire tension increases, it pulls the second feeding roller upwards against the rebound force of the elastic element, reducing the cable wire feeding distance and releasing some tension. When the cable wire tension decreases, the second feeding roller is pulled further downwards by the rebound force of the elastic element, increasing the cable wire feeding distance and appropriately tightening the cable. The cable wires are fed forward, thus achieving stable tension adjustment during the cable wire feeding process. Simultaneously, the conductor has symmetrically arranged movable cleaning sections at both the upper and lower ends. Each movable cleaning section includes rollers rotatably connected to the left and right ends of the conductor, and cleaning pads tensioned and wound around the rollers at both ends. As the cable wires are fed forward, the cleaning pads, which are in close contact with the upper and lower ends, clean the surface dust and impurities. At the same time, a one-way transmission section is provided between the first feeding roller and the conductor. While the tension is automatically and adaptively adjusted and stabilized by the first and second feeding rollers, the cleaning pads are moved unidirectionally, avoiding prolonged contact between a single end of the cleaning pad and the cable wires, which reduces the cleaning effect and improves overall efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0019] Figure 2 This is a schematic diagram of the structure of the second wire feeding roller of the present invention when it rotates upward;

[0020] Figure 3 This is a schematic diagram of the structure of the first wire feeding roller of the present invention;

[0021] Figure 4 This is a schematic diagram of the roller shaft of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the back of the fixing frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the unidirectional transmission part of the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the conductor of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the conduit of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the conduit of the present invention when it rotates upward;

[0027] Figure 10 For the present invention Figure 9 Enlarged view of point A in the middle;

[0028] Figure 11 This is a side view of the conductor of the present invention.

[0029] The diagram is marked as follows:

[0030] 1. Fixed frame; 2. First feed roller; 21. Roller shaft; 22. Roller body; 23. Radial rod; 3. Side connecting rod; 4. Second feed roller; 5. Elastic element; 6. Wire guide; 7. Cable wire; 8. Movable cleaning part; 81. Idler roller; 82. Cleaning pad; 9. One-way transmission part; 91. Ratchet; 92. External gear ring; 93. Driven wheel; 94. Wedge; 95. Pad; 96. Axle; 97. Main pulley; 98. 10. Pulley; 11. Dust collection box; 12. Dust collection port; 13. Flexible scraper; 14. Blade handle; 15. Blade head; 16. Connecting platform; 17. Annular groove; 18. Slider; 19. Positioning bolt; 20. Main gear; 21. Conduit; 22. Wire end; 23. Conductor wheel; 24. Anti-slip pad; 25. Upper chuck; 26. Inner groove; 27. Lower chuck; 28. Pull rope; 29. ​​Clearance hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] A wire feeding tension adjusting device for a heating cable winding machine is provided at the wire feeding end of a horizontal winding machine. It includes a fixed frame 1 erected on the horizontal winding machine, a first wire feeding roller 2 rotatably connected to the fixed frame 1, a side connecting rod 3 connected to the side end of the first wire feeding roller 2, a second wire feeding roller 4 connected to one end of the side connecting rod 3, an elastic element 5 connecting the first wire feeding roller 2 and the fixed frame 1, and a wire guide 6 provided on the fixed frame 1. Cable wires 7 are sequentially wound around the first wire feeding roller 2 and the second wire feeding roller 4, and guided out through the wire guide 6. Initially, the elastic element 5 pushes the first wire feeding roller 2 to rotate, causing the second wire feeding roller 4 to rotate to a position below and to the side of the first wire feeding roller 2, thus keeping the cable wires 7 taut. The upper and lower ends of the conductor 6 are symmetrically provided with movable cleaning parts 8. The movable cleaning parts 8 include rollers 81 rotatably connected to the left and right ends of the conductor 6, and cleaning pads 82 tensioned and wound around the rollers 81 at both ends. The cable wires 7 inside the conductor 6 are attached between the cleaning pads 82 at the upper and lower ends. A one-way transmission part 9 is provided between the first wire feeding roller 2 and the conductor 6. When the first wire feeding roller 2 rotates in one direction, the one-way transmission part 9 drives the upper roller 81 to rotate, so that the upper cleaning pad 82 moves unidirectionally along the conveying direction of the cable wires 7. When the first wire feeding roller 2 rotates in the opposite direction, the one-way transmission part 9 drives the lower roller 81 to rotate, so that the lower cleaning pad 82 moves unidirectionally along the conveying direction of the cable wires 7.

[0034] This invention relates to the existing process of preparing heating cables by winding or coiling cable wires using a horizontal winding machine. A fixed frame 1 is erected on the horizontal winding machine. A first wire feeding roller 2 is rotatably connected to the fixed frame 1. A side connecting rod 3 is connected to the side end of the first wire feeding roller 2, and a second wire feeding roller 4 is connected to one end of the side connecting rod 3. An elastic element 5 connects the first wire feeding roller 2 and the fixed frame 1. Simultaneously, a wire guide 6 is provided on the fixed frame 1. Thus, ... Figure 1As shown, cable wire 7 is sequentially wound around the first feed roller 2 and the second feed roller 4, and guided out by the conductor 6. Initially, the elastic element 5 pushes the first feed roller 2 to rotate, causing the second feed roller 4 to rotate to the side and below the first feed roller 2, thus keeping the cable wire 7 taut. When the tension of the cable wire 7 increases, i.e., when the cable wire 7 becomes tighter, it pulls the second feed roller 4 upward against the rebound force of the elastic element 5, reducing the feeding distance of the cable wire 7 and releasing some tension. When the tension of the cable wire 7 decreases, i.e., when the cable wire 7 becomes looser, the rebound force of the elastic element 5 pulls the second feed roller 4 further downward, causing the cable wire... The increased feeding distance of cable wire 7 allows for proper tensioning of the cable wire 7, thus achieving stable tension adjustment during cable wire feeding. Simultaneously, movable cleaning sections 8 are symmetrically arranged at both ends of the conductor 6. Each movable cleaning section 8 includes rollers 81 rotatably connected to the left and right ends of the conductor 6, and cleaning pads 82 tensioned and wound around the rollers 81 at both ends. The cable wire 7 inside the conductor 6 is placed between the cleaning pads 82 at both ends. Therefore, as the cable wire 7 is fed forward, the cleaning pads 82 at both ends clean the surface of dust and impurities. Meanwhile, a one-way transmission section 9 is provided between the first feeding roller 2 and the conductor 6, with the first feeding roller 2 rotating clockwise. When rotating counterclockwise, the upper roller 81 is driven to rotate via the one-way transmission unit 9 without interfering with the lower roller 81, so that the upper cleaning pad 82 moves unidirectionally along the conveying direction of the cable wire 7. When the first wire feeding roller 2 rotates in the opposite direction, the lower roller 81 is driven to rotate via the one-way transmission unit 9 without interfering with the upper roller 81, so that the lower cleaning pad 82 moves unidirectionally along the conveying direction of the cable wire 7. Considering that the cable wire 7 will inevitably be sometimes loose and sometimes tight as it is continuously fed forward, the tension is stabilized by the automatic adaptive adjustment of the first wire feeding roller 2 and the second wire feeding roller 4 while the cleaning pad 82 is moved unidirectionally to avoid prolonged contact with the cleaning pad 82. The single-end face contact of the cleaning wire reduces the cleaning effect, resulting in higher overall efficiency. Furthermore, the moving direction of the cleaning pad 82 is parallel to the conveying direction of the cable wire 7, avoiding lateral movement relative to the wire that causes axial torsional deformation. Increased axial torsional stress will inevitably damage the wire or cause excessive internal stress in the cable. Also, when the cable wire 7 is sometimes loose and sometimes tight, the first wire feeding roller 2 rotates in the forward or reverse direction, which will only drive the upper or lower cleaning pad 82 to move separately. The upper and lower cleaning pads 82 will not move at the same time, affecting the wire feeding. Moreover, the cleaning pad 82 always rotates in one direction, keeping the end face of the new cleaning pad 82 in contact with the cleaning, and avoiding the return stroke from affecting the cleaning efficiency.

[0035] In embodiments of the present invention, such as Figure 1 , Figure 7As shown, a scraper assembly is provided at the end of the movable cleaning section 8 inside the guide wire 6. The scraper assembly includes a dust collection box 10, and a dust collection port 11 is provided at the top of the dust collection box 10. Preferably, the end of the dust collection port 11 close to the idler roller 81 is designed with an inclined end face to facilitate better collection of dust and impurities. An elastic scraper 12 is connected to one side of the dust collection port 11. Specifically, the elastic scraper 12 includes a blade 121 that is elastically telescopically connected to the dust collection box 10, and a blade head 122 connected to the head end of the blade 121. The blade head 122 elastically abuts against the cleaning pad 82 and rotates unidirectionally with the cleaning pad 82. The blade head 122 automatically scrapes off the dust and impurities on the cleaning pad 82 to maintain the cleaning efficiency of the cleaning pad 82.

[0036] In an embodiment of the present invention, the first wire feeding roller 2 can be rotatably connected to the fixed frame 1 as a whole rotating roller, and then fixedly connected to the second wire feeding roller 4 via the side connecting rod 3. Thus, when the cable wire 7 is wound around the first wire feeding roller 2 and the second wire feeding roller 4 for feeding, the first wire feeding roller 2 and the second wire feeding roller 4 themselves will not rotate. As another implementation method, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the first wire feeding roller 2 includes a roller shaft 21 and a roller body 22 rotatably sleeved on the roller shaft 21. The roller body 22 rotates freely axially around the roller shaft 21. One end of the roller shaft 21 is rotatably connected to the fixed frame 1, and the other end passes through the roller body 22 and is fixedly connected to the side connecting rod 3. The side end of the second wire feeding roller 4 is rotatably connected to the side connecting rod 3. Thus, when the cable wire 7 is wound around the first wire feeding roller 2 and the second wire feeding roller 4 to feed the wire, the first wire feeding roller 2 and the second wire feeding roller 4 rotate with the wire feeding.

[0037] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a connecting platform 13 is fixed on the fixed frame 1. One end of the roller shaft 21 is rotatably connected to the connecting platform 13. An annular groove 14 is provided on the connecting platform 13. An elastic element 5 is provided in the annular groove 14. Specifically, the elastic element 5 can be an existing elastic component such as a spring. A radial rod 23 is fixedly connected to the side end of the roller shaft 21. The radial rod 23 faces the radial direction of the inner side of the roller shaft 21. The radial rod 23 passes through the annular groove 14 and abuts against one end of the elastic element 5. Thus, the roller shaft 21 is rotated by pushing the radial rod 23 through the elastic element 5, so that the second wire feeding roller 4 is rotated to the side and below the first wire feeding roller 2, so that the cable wire 7 is in a taut state.

[0038] In embodiments of the present invention, such as Figure 3As shown, a slider 15 is slidably connected inside the annular groove 14. The end of the elastic element 5 away from the radial rod 23 is connected to the side of the slider 15. A positioning bolt 16 is connected through the top of the slider 15. The positioning bolt 16 passes through the bottom of the slider 15 and abuts against the inner bottom wall of the annular groove 14. Thus, in actual production, the position of the slider 15 in the annular groove 14 is adjusted for different wire products to adapt to different tension adjustment needs. After adjustment, the position of the slider 15 is fixed by tightening the positioning bolt 16.

[0039] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the inner end of the roller shaft 21 extends through to the back of the fixed frame 1 and is fixedly connected to the main gear 17. The one-way transmission part 9 includes a one-way ratchet part located at the upper and lower ends on one side of the main gear 17. The one-way ratchet part includes a ratchet 91. The outer ring of the ratchet 91 is provided with an external gear ring 92 that meshes with the main gear 17. A driven wheel 93 is fitted inside the ratchet 91. A wedge 94 is arranged around the inner ring of the ratchet 91, and a pawl 95 is arranged around the outer ring of the driven wheel 93. The upper driven wheel 93 is connected to the upper roller 81, and the lower driven wheel 93 is connected to the lower roller 81 to drive the roller 81 to rotate synchronously. The upper wedge 94 and pawl are connected to the upper roller 81. The direction of the 95th position is opposite to that of the lower wedge 94 and pawl 95. Specifically, when the roller shaft 21 rotates counterclockwise, the external gear rings 92 at both ends of the transmission rotate clockwise. The upper wedge 94 rotates beyond the pawl 95 and will not drive the upper driven wheel 93 to rotate. Meanwhile, the lower wedge 94 rotates to push against the pawl 95 and drive the lower driven wheel 93 to rotate clockwise synchronously. Conversely, when the roller shaft 21 rotates clockwise, the external gear rings 92 at both ends of the transmission rotate counterclockwise. The lower wedge 94 rotates beyond the pawl 95 and will not drive the lower driven wheel 93 to rotate. Meanwhile, the upper wedge 94 rotates to push against the pawl 95 and drive the upper driven wheel 93 to rotate counterclockwise synchronously.

[0040] Optionally, the driven wheel 93 has a side axle 96 connected to it. One end of the axle 96 extends through the one-way ratchet and is fixedly connected to the main pulley 97. The side of the idler roller 81 has a driven pulley 98 connected to it. Specifically, the side of the idler roller 81 has a connecting shaft connected to it. The connecting shaft extends to the back of the fixed frame 1 and is connected to the driven pulley 98. A belt is tensioned and wrapped between the main pulley 97 and the driven pulley 98, thereby driving the idler roller 81 to rotate synchronously in one direction through the driven wheel 93. This enables the upper idler roller 81 to rotate counterclockwise, or the lower idler roller 81 to rotate clockwise. Figure 7 As shown, the dust and impurities on the cleaning pad 82 are automatically scraped off by the scraper assembly.

[0041] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the inlet of the conductor 6 is provided with a conduit 18, and the outer end of the conduit 18 is provided with an outwardly flared conduit head 19. The cable wire 7 is guided into the conductor 6 through the conduit head 19 and the conduit 18.

[0042] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the inner end of the conduit 18 is rotatably connected to the conductor 6, and a torsion spring is provided at the rotatable connection. A guide wheel 20 is provided at the top of the conduit 18. Specifically, a wheel frame is fixed to the top of the conduit 18, and the guide wheel 20 is rotatably connected to the wheel frame. In the initial state, as... Figure 1 As shown, the second wire feeding roller 4 is located below and to the side of the first wire feeding roller 2. The cable wire 7 is in a taut state, and one end of the cable wire 7 pulls the threading tube 18 to a horizontal state. During the wire feeding process, if the tension of the cable wire 7 gradually increases, it pulls the second wire feeding roller 4 to overcome the rebound force of the elastic element 5 and rotate upward. Then, the torsion spring drives the threading tube 18 to rotate upward until the transmission wheel 20 abuts against the upper cleaning pad 82. At this time, if the roller shaft 21 rotates clockwise quickly, it indicates that the cable wire 7 is broken. The threading tube 18 is no longer constrained by the downward pulling force of the cable wire 7, but by its own torsion spring. The transmission wheel 20 remains against the upper cleaning pad 82 and rotates counterclockwise with the cleaning pad 82, driving the transmission wheel 20 to rotate synchronously, triggering the internal clamping of the cable wire 7 in the threading tube 18, automatically clamping the broken cable wire 7, and at the same time triggering the winding machine to stop feeding wire, which is more convenient for rewiring or finding the broken wire end.

[0043] The wire inlet of the wire guide 6 is provided with a clearance hole 27 at the upper end of the wire guide tube 18. When the wire guide tube 18 rotates upward, the head end of the wire guide tube 18 extends into the clearance hole 27.

[0044] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11As shown, an upper clamp 24 is fixedly provided at the top end of the conduit 18, and a lower clamp 25 is movably provided at the bottom end of the conduit 18. For example, the lower clamp 25 is slidably connected to the inner wall of the conduit 18. The upper clamp 24 has an inner groove 241 that matches the lower clamp 25 in the middle. A pull rope 26 is wound on the transmission wheel 20. The pull rope 26 is inserted into the conduit 18 and connected to the lower clamp 25. When the transmission wheel 20 rotates close to the cleaning pad 82, it drives the pull rope 26 to rewind, so that the lower clamp 25 moves up into the inner groove 241 to clamp the cable wire 7.

[0045] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the outer ring of the guide wheel 20 is fitted with an anti-slip pad 201. Specifically, the cleaning pad 82 can be made of existing synthetic fibers with functions such as water absorption and stain removal, and the anti-slip pad 201 can be made of synthetic fiber material with roughened surface treatment, or made of anti-slip material such as Velcro with hooks and barbs.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A wire feeding tension adjusting device of a heating cable winder, which is provided at a wire feeding end of a horizontal winder, characterized in that, include: A fixed frame (1) is erected on a horizontal wire winding machine. A first wire feeding roller (2) is rotatably connected to the fixed frame (1). A side connecting rod (3) is connected to the side end of the first wire feeding roller (2). A second wire feeding roller (4) is connected to one end of the side connecting rod (3). An elastic element (5) is connected between the first wire feeding roller (2) and the fixed frame (1). The cable conductor (6) is mounted on the fixed frame (1). The cable wire (7) is wound around the first feed roller (2) and the second feed roller (4) in sequence, and guided out through the cable conductor (6). In the initial state, the first feed roller (2) is pushed to turn by the elastic element (5), so that the second feed roller (4) is turned to the side and below the first feed roller (2), so that the cable wire (7) is in a taut state. The cable conductor (6) is provided with movable cleaning parts (8) symmetrically at the upper and lower ends. The movable cleaning parts (8) include rollers (81) rotatably connected to the left and right ends of the cable conductor (6), and tensioning rollers (81) wound around the rollers (81) at both ends. A cleaning pad (82) is provided between the upper and lower cleaning pads (82) of the cable wire (7) inside the conductor (6). A one-way transmission part (9) is provided between the first wire feeding roller (2) and the conductor (6). When the first wire feeding roller (2) rotates in one direction, the upper roller (81) is driven to rotate through the one-way transmission part (9) so that the upper cleaning pad (82) moves in one direction along the conveying direction of the cable wire (7). When the first wire feeding roller (2) rotates in the opposite direction, the lower roller (81) is driven to rotate through the one-way transmission part (9) so that the lower cleaning pad (82) moves in one direction along the conveying direction of the cable wire (7). The first wire feeding roller (2) includes a roller shaft (21) and a roller body (22) sleeved on the roller shaft (21). The roller body (22) rotates freely axially around the roller shaft (21). One end of the roller shaft (21) is rotatably connected to the fixed frame (1), and the other end passes through the roller body (22) and is fixedly connected to the side connecting rod (3). The side end of the second wire feeding roller (4) is rotatably connected to the side connecting rod (3). A connecting platform (13) is fixed on the fixed frame (1). One end of the roller shaft (21) is rotatably connected to the connecting platform (13). An annular groove (14) is provided on the connecting platform (13). The elastic element (5) is provided in the annular groove (14). A radial rod (23) is fixedly connected to the side end of the roller shaft (21). The radial rod (23) passes through the annular groove (14) and abuts against one end of the elastic element (5). The roller shaft (21) rotates by pushing the radial rod (23) through the elastic element (5), so that the second wire feeding roller (4) rotates to be located below the side of the first wire feeding roller (2), so that the cable wire (7) is in a taut state. A slider (15) is slidably connected inside the annular groove (14). One end of the elastic element (5) away from the radial rod (23) is connected to the side end of the slider (15). A positioning bolt (16) is connected through the top of the slider (15). The positioning bolt (16) passes through the bottom end of the slider (15) and abuts against the inner bottom wall of the annular groove (14). The inner end of the roller shaft (21) extends through to the back of the fixed frame (1) and is fixedly connected to the main gear (17). The one-way transmission part (9) includes a one-way ratchet (91) part located at the upper and lower ends of one side of the main gear (17). The one-way ratchet (91) part includes a ratchet (91). The outer ring of the ratchet (91) is provided with an outer gear ring (92) that meshes with the main gear (17). The ratchet (91) is fitted with a driven wheel (93). The inner ring of the ratchet (91) is provided with a wedge (94). The outer ring of the driven wheel (93) is provided with a pawl (95). The driven wheel (93) at the upper end is connected to the upper roller (81) through the transmission connection. The driven wheel (93) at the lower end is connected to the lower roller (81) through the transmission connection, which is used to drive the roller (81) to rotate synchronously.

2. The wire feeding tension adjusting device of a heating cable winder according to claim 1, wherein The wire guide (6) is provided with a scraper assembly at the end of the movable cleaning part (8). The scraper assembly includes a dust collection box (10), and a dust collection port (11) is provided at the top of the dust collection box (10). An elastic scraper (12) is connected to one side of the dust collection port (11). The elastic scraper (12) abuts against the cleaning pad (82) and is used to scrape off dust and impurities on the cleaning pad (82).

3. The wire feeding tension adjusting device of a heating cable winder according to claim 1, wherein The cable conductor (6) has a cable inlet tube (18) and an outwardly flared cable head (19) at the outer end of the cable inlet tube (18). The cable wire (7) is guided into the cable conductor (6) through the cable head (19) and the cable inlet tube (18).

4. The wire feeding tension adjusting device for a heating cable winding machine according to claim 3, characterized in that, The inner end of the threading tube (18) is rotatably connected to the conductor (6), and a torsion spring is provided at the rotatable connection. A transmission wheel (20) is provided at the top of the threading tube (18). When the roller shaft (21) rotates counterclockwise, the second wire feeding roller (4) rotates upward, and the torsion spring drives the threading tube (18) to rotate upward until the transmission wheel (20) abuts against the cleaning pad (82) at the upper end. At this time, if the roller shaft (21) rotates clockwise quickly, the driven wheel (93) at the upper end rotates counterclockwise synchronously, and the cleaning pad (82) at the upper end rotates quickly, driving the transmission wheel (20) to rotate synchronously, triggering the clamping of the cable wire (7) inside the threading tube (18).

5. The wire feeding tension adjusting device for a heating cable winding machine according to claim 4, characterized in that, The top end of the conduit (18) is fixedly provided with an upper clamp (24), and the bottom end of the conduit (18) is movably provided with a lower clamp (25). The upper clamp (24) has an inner groove (241) in the middle that matches the lower clamp (25). A pull rope (26) is wound on the guide wheel (20). The pull rope (26) is inserted into the conduit (18) and connected to the lower clamp (25). When the guide wheel (20) rotates close to the cleaning pad (82), it drives the pull rope (26) to wind up, so that the lower clamp (25) moves up into the inner groove (241) to clamp the cable wire (7).

6. The wire feed tension adjustment device of a heating cable winder according to claim 5, wherein The outer ring of the transmission wheel (20) is fitted with an anti-slip pad (201).

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