Heating wire resistance adjusting device of winding machine

Abstract

A heating wire resistance adjusting device of a winding machine comprises a machine base, a supporting base and a hollow shaft are arranged on the left side of the upper surface of the machine base, a first transmission wheel is installed at the left end of the hollow shaft, and a driving wheel, a pay-off roller and a wire winding block are installed at the right end of the hollow shaft; supporting transverse bases are arranged on the right side of the machine base, and a first conical column and a second conical column are rotationally connected between the two supporting transverse bases through a first rotating shaft and a second rotating shaft. An adjusting transmission belt is arranged between the first conical column and the second conical column, a first guide roller is mounted at the front end of the first rotating shaft, and a second guide roller is mounted on the base; a transverse plate and a vertical rod are arranged in the middle of the supporting transverse seat, conductive shafts are arranged on the left and right sides of the transverse plate respectively, and the rear ends of the conductive shafts are connected with a resistance meter through conductive slip rings; a wire guide wheel is arranged on the vertical rod; a take-up assembly is arranged on the right side of the base. According to the utility model, through directly adjusting the position of the transmission belt in the axial direction of the first conical column and the second conical column, the effect of rapidly adjusting the resistance of the heating wire can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a winding machine technical field, concretely relates to a heating wire resistance adjusting device of winding machine. BACKGROUND

[0002] The winding machine for the production of heating wire is a key equipment for producing electric heating elements, and the core wire needs to be uniformly wound with resistance alloy wire on its outer surface to form an electric heating element. The winding process of the core wire and the resistance alloy wire is a key step, which directly affects the performance of the heating wire.

[0003] During the winding process of the resistance alloy wire, the resistance value of the heating wire per unit length needs to be accurately adjusted in order to control the power of the heating wire. Traditional winding methods mostly use manual operation, which is not only inefficient, but also relies on complex electronic control systems for resistance adjustment of the wound resistance alloy wire, which has the problems of complex operation, high cost and limited adjustment accuracy.

[0004] Therefore, it is of great practical value to develop a manual adjustment device that can meet the flexibility requirements of resistance adjustment, reduce costs, and improve adjustment accuracy. UTILITY MODEL CONTENT

[0005] In view of the shortcomings of the prior art, the utility model provides a heating wire resistance adjusting device of winding machine, which overcomes the shortcomings of the prior art, is reasonable in design, and can realize rapid adjustment of the heating wire resistance by directly adjusting the position of the adjustment transmission belt in the axial direction of the first and second tapered columns, and can detect the corresponding length of the heating wire in real time through the resistance meter to ensure the accuracy and stability of the resistance adjustment.

[0006] To achieve the above purpose, the utility model realizes the following technical solutions:

[0007] A heating wire resistance adjusting device of winding machine, comprising a machine base, a winding assembly is arranged on the left side of the upper surface of the machine base, the winding assembly comprises a support seat and a left-right through hollow shaft, the hollow shaft is rotatably connected with the support seat through a bearing, a first transmission wheel is fixedly installed on the left end outer surface of the hollow shaft, a driving wheel and a pay-off drum are fixedly installed on the right end of the hollow shaft from left to right, the driving wheel is drivingly connected with the driving end of a driving motor through a transmission belt, and a wire winding block is fixedly installed on the right end surface of the hollow shaft.

[0008] The upper surface of the base is provided with a resistance adjusting assembly on the right side, the resistance adjusting assembly comprises two support cross seats arranged in front of and behind each other and parallel to each other, a first rotating shaft and a second rotating shaft are rotatably connected between the two support cross seats through bearing seats, the first rotating shaft and the second rotating shaft are arranged in parallel to each other, a first conical column is fixedly welded to the outer surface of the first rotating shaft, a second conical column is fixedly welded to the outer surface of the first rotating shaft, and the small circular surfaces of the first conical column and the second conical column face away from each other; an adjusting transmission belt is sleeved on the outer surfaces of the first conical column and the second conical column, the front end of the first rotating shaft penetrates through the bearing seat and is fixedly installed with a first wire roller, a support block is fixedly installed on the right side of the upper surface of the base, a second wire roller is rotatably connected to the front side of the support block through a rotating shaft, the second wire roller corresponds to the first wire roller left and right, and a fourth transmission wheel is fixedly installed at the rear end of the second rotating shaft; a cross plate is arranged in the middle of the support cross seat on the front side, a vertical rod is vertically fixedly installed in the middle of the cross plate, the lower end of the vertical rod is fixedly installed on the support cross seat, electrically conductive shafts are rotatably connected to the left and right sides of the cross plate through bearings respectively, the front ends of the two electrically conductive shafts penetrate through the cross plate and are fixedly installed with electrically conductive wheels, electrically conductive slip rings are installed at the rear ends of the two electrically conductive shafts, a power collecting guide column is fixedly installed at the stator end of the electrically conductive slip ring, and the power collecting guide column is connected with a resistance meter through a wire; a wire roller is rotatably connected to the front side of the vertical rod through a rotating shaft; a take-up assembly is arranged on the right side of the base.

[0009] Preferably, a gear box is fixedly installed on the upper surface of the base, a second transmission wheel is fixedly installed on the input shaft of the gear box, a third transmission wheel is fixedly installed on the output shaft of the gear box, the second transmission wheel is in transmission connection with the first transmission wheel through a transmission belt, and the third transmission wheel is in transmission connection with the fourth transmission wheel through a transmission belt.

[0010] Preferably, the take-up assembly comprises a central shaft and a take-up roller, the central shaft penetrates through a support bearing seat and is rotatably connected with the support bearing seat, the front end of the central shaft is fixedly sleeved with a take-up roller, the rear end of the central shaft is fixedly installed with a fifth transmission wheel, a sixth transmission wheel is fixedly installed on the outer surface of the second rotating shaft, and the fifth transmission wheel is in transmission connection with the sixth transmission wheel.

[0011] Preferably, a right-angle mounting column is fixedly installed on the support cross seat on the rear side, two parallel guide rods are horizontally fixedly installed between the right-angle mounting column and the vertical rod, the guide rods are arranged in parallel to the first rotating shaft and the second rotating shaft, sliding sleeves are slidably connected to the outer surfaces of the guide rods, U-shaped adjusting rods are vertically welded to the lower ends of the sliding sleeves, and the adjusting transmission belt is located in the U-shaped groove of the U-shaped adjusting rod.

[0012] Preferably, a plurality of wire grooves are arranged around the outer surfaces of the first wire roller and the second wire roller.

[0013] Preferably, the wire winding block comprises a mounting column fixedly sleeved at the right end of the hollow shaft, a guide ring is arranged on the circumferential surface of the right end face of the mounting column, a wire guide hole is formed on the surface of the guide ring, a wire outlet block is fixedly mounted on the middle of the right end face of the mounting column, a through hole penetrating up and down is formed in the middle of the wire outlet block, and the through hole is in communication with the hollow cavity of the hollow shaft.

[0014] The utility model provides a heating wire resistance adjusting device of winding machine. Have the following beneficial effects: the wiring end of resistance appearance is connected with two conductive sliding ring through the electric guide column, can realize resistance detection to the heating wire between two conductive shafts through resistance appearance. When the resistance value of the heating wire between two conductive shafts is too big or too small through resistance appearance detection, the position of the adjusting transmission belt in the axial direction of the first taper column and the second taper column can be adjusted, because the linear velocity of the first taper column and the second taper column is equal, the position of the adjusting transmission belt can be changed to realize the adjustment effect of the rotation angular velocity of the first taper column. Then realize the adjustment of the rotation speed of the first wire roller, and then realize the micro adjustment of the conveying speed of the core wire, and because the rotation speed of the hollow shaft is invariable, the winding density of the resistance alloy wire can be adjusted, and then the resistance value of the heating wire between two conductive shafts can meet the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the drawings needed to be used in the prior art description will be briefly introduced below.

[0016] Figure 1 The structural schematic diagram of the utility model;

[0017] Figure 2 The structural schematic diagram of the winding assembly in the utility model;

[0018] Figure 3 The structural schematic diagram of the resistance adjusting assembly in the utility model;

[0019] Figure 4 The sectional structure schematic diagram of the conductive shaft in the utility model;

[0020] Figure 5 The structural schematic diagram of the wire winding block in the utility model;

[0021] Mark explanation in the drawing:

[0022] 1. Base; 2. Support base; 3. Hollow shaft; 4. First transmission wheel; 5. Drive wheel; 6. Wire feeding roller; 7. Winding block; 8. Support cross seat; 9. First rotating shaft; 10. Second rotating shaft; 11. First conical column; 12. Second conical column; 13. Adjustable transmission belt; 14. First guide roller; 15. Support block; 16. Second guide roller; 17. Horizontal plate; 18. Conductive shaft; 19. Conductive wheel; 20. Conductive... 21. Slip ring; 22. Guide wheel; 23. Fourth drive wheel; 24. Vertical rod; 25. Gearbox; 26. Second drive wheel; 27. Third drive wheel; 28. Central shaft; 29. ​​Take-up roller; 30. Fifth drive wheel; 31. Sixth drive wheel; 32. Right-angle mounting post; 33. Guide rod; 34. Sliding sleeve; 75. U-shaped adjusting rod; 76. Mounting post; 77. Guide ring; 78. Guide hole; 79. Wire exit taper. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1, as Figures 1-5 As shown, a heating wire resistance adjustment device for a winding machine includes a base 1. A winding assembly is provided on the left side of the upper surface of the base 1. The winding assembly includes a support base 2 and a hollow shaft 3 that passes through the left and right sides. The hollow shaft 3 is rotatably connected to the support base 2 through bearings. A first transmission wheel 4 is fixedly installed on the outer surface of the left end of the hollow shaft 3. The right end of the hollow shaft 3 passes through the support base 2 and is fixedly installed with a drive wheel 5 and a wire feeding roller 6 from left to right. The drive wheel 5 is connected to the drive end of the drive motor through a transmission belt. A winding block 7 is fixedly installed on the right end face of the hollow shaft 3.

[0025] The right side of the upper surface of the base 1 is provided with a resistance adjusting assembly, the resistance adjusting assembly comprises two support cross seats 8 arranged in front of and behind each other and parallel to each other, a first rotating shaft 9 and a second rotating shaft 10 are rotatably connected between the two support cross seats 8 through bearing seats respectively, the first rotating shaft 9 and the second rotating shaft 10 are arranged in parallel to each other, a first conical column 11 is fixedly welded to the outer surface of the first rotating shaft 9, a second conical column 12 is fixedly welded to the outer surface of the second rotating shaft 10, the first conical column 11 and the second conical column 12 are of the same shape, and the small circular surface of the first conical column 11 and the small circular surface of the second conical column 12 face away from each other (that is, the small circular surface of the first conical column 11 and the large circular surface of the second conical column 12 are both located on the front side, and the large circular surface of the first conical column 11 and the small circular surface of the second conical column 12 are both located on the rear side); the first conical column 11 and the second conical column 12 are drivingly connected through an adjusting transmission belt 13, the front end of the first rotating shaft 9 penetrates through the bearing seat and is fixedly installed with a first wire roller 14, a support block 15 is fixedly installed on the right side of the upper surface of the base 1, a second wire roller 16 is rotatably connected to the front side of the support block 15 through a rotating shaft, the second wire roller 16 corresponds to the first wire roller 14 left and right, the rear end of the second rotating shaft 10 is fixedly installed with a fourth transmission wheel 22; a cross plate 17 is arranged in the middle of the support cross seat 8 on the front side, a vertical rod 23 is vertically fixedly installed in the middle of the cross plate 17, the lower end of the vertical rod 23 is fixedly installed on the support cross seat 8, the left and right sides of the cross plate 17 are both rotatably connected with a conductive shaft 18 through a bearing respectively, a wire groove is surrounded on the outer surface of the conductive shaft 18, the front end of the two conductive shafts 18 penetrates through the cross plate 17 and is fixedly installed with a conductive wheel 19, the rear end of the two conductive shafts 18 is installed with a conductive slip ring 20, the stator end of the conductive slip ring 20 is fixedly installed with an electric connection guide column, the electric connection guide column is connected with a resistance meter through a wire; the front side of the upper end of the vertical rod 23 is rotatably connected with a wire wheel 21 through a rotating shaft; a take-up assembly is arranged on the right side of the base 1.

[0026] Working principle:

[0027] In work, first, the core wire is led out from the wire supply roller, then is inserted into the hollow cavity of the hollow shaft 3 from the left end of the hollow shaft 3, then is led out from the through hole in the middle of the wire winding block 7 on the right end of the hollow shaft 3; then is sequentially wound to the left conductive shaft 18, the wire wheel 21 and the right conductive shaft 18, then is sequentially wound between the second wire roller 16 and the first wire roller 14, then is led out from the first wire roller 14 and is wound to the take-up assembly for take-up, and the resistance alloy wire on the wire roller 6 is first inserted through the guide hole 73 on the surface of the wire winding block 7, then is parallel-wound with the core wire.

[0028] Then the driving end of the driving motor is controlled to drive the driving wheel 5 to rotate, then the hollow shaft 3 is driven to rotate through the driving wheel 5, and then the wire roller 6 and the wire winding block 7 are driven to rotate, so that the resistance alloy wire on the wire roller 6 is uniformly wound on the outer surface of the core wire to form a heating wire.

[0029] In the embodiment, the gear box 24 is fixedly installed on the upper surface of the base 1, the second transmission wheel 25 is fixedly installed on the input shaft of the gear box 24, the third transmission wheel 26 is fixedly installed on the output shaft of the gear box 24, the second transmission wheel 25 is connected with the first transmission wheel 4 through the transmission belt, and the third transmission wheel 26 is connected with the fourth transmission wheel 22 through the transmission belt.

[0030] Therefore, when the driving end of the driving motor drives the hollow shaft 3 to rotate, the first transmission wheel 4 on the hollow shaft 3 drives the second transmission wheel 25 to rotate, and then the third transmission wheel 26 on the output shaft of the gear box 24 drives the fourth transmission wheel 22 to rotate, thereby driving the second rotating shaft 10 to rotate, and then the second rotating shaft 10 drives the second conical column 12 to rotate, and then the second conical column 12 drives the first conical column 11 to rotate, and then the first conical column 11 drives the first wire roller 14 to rotate, thereby achieving the effect of conveying the core wire.

[0031] In addition, the connecting end of the resistance meter is connected with the two conductive slip rings 20 through the electrically-conductive guide column, thereby achieving the effect of detecting the resistance of the heating wire between the two conductive shafts 18 through the resistance meter. When the resistance of the heating wire between the two conductive shafts 18 is too large or too small, the position of the adjusting transmission belt 13 in the axial direction of the first conical column 11 and the second conical column 12 is adjusted, the linear speed of the first conical column 11 and the second conical column 12 is equal, the position of the adjusting transmission belt 13 is changed, the rotational angular speed of the first conical column 11 is adjusted, the adjusting transmission belt 13 is moved forward to make the adjusting transmission belt 13 close to the small circular surface of the second conical column 12 and the large circular surface of the first conical column 11, and the rotational angular speed of the first conical column 11 is reduced. Similarly, when the adjusting transmission belt 13 is moved backward, the rotational angular speed of the first conical column 11 is increased, the rotational speed of the first wire roller 14 is adjusted, the conveying speed of the core wire is slightly adjusted, the rotational speed of the hollow shaft 3 is unchanged, the winding density of the resistance alloy wire is adjusted, and the resistance of the heating wire between the two conductive shafts 18 meets the requirements.

[0032] In the embodiment, a friction wheel is fixedly installed on the central shaft 27, the fifth transmission wheel 29 is movably sleeved on the central shaft 27, a friction pad is arranged between the friction wheel and the fifth transmission wheel 29, a spring is arranged on a side of the fifth transmission wheel 29 away from the friction pad, and an adjusting nut is threadedly connected to the rear end of the central shaft 27, so that the two ends of the spring are respectively abutted against the fifth transmission wheel 29 and the adjusting nut. Thus, the fifth transmission wheel 29 is abutted against the friction wheel through the elastic pressure of the spring, and the friction wheel is driven to rotate by the fifth transmission wheel 29 through the sliding friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby driving the central shaft 27 to rotate and the take-up roller 28 to rotate. When the rotating speed of the take-up roller 28 needs to be adjusted, the adjusting nut is rotated to adjust the compression degree of the spring, thereby increasing the elastic pressure of the spring on the fifth transmission wheel 29, so as to effectively increase the friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby enabling the friction wheel to rotate faster when the fifth transmission wheel 29 rotates, thereby effectively increasing the rotating speed of the central shaft 27 and the take-up roller 28, and effectively increasing the take-up tension of the heating wire.

[0033] In the embodiment, a friction wheel is fixedly installed on the central shaft 27, the fifth transmission wheel 29 is movably sleeved on the central shaft 27, a friction pad is arranged between the friction wheel and the fifth transmission wheel 29, a spring is arranged on a side of the fifth transmission wheel 29 away from the friction pad, and an adjusting nut is threadedly connected to the rear end of the central shaft 27, so that the two ends of the spring are respectively abutted against the fifth transmission wheel 29 and the adjusting nut. Thus, the fifth transmission wheel 29 is abutted against the friction wheel through the elastic pressure of the spring, and the friction wheel is driven to rotate by the fifth transmission wheel 29 through the sliding friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby driving the central shaft 27 to rotate and the take-up roller 28 to rotate. When the rotating speed of the take-up roller 28 needs to be adjusted, the adjusting nut is rotated to adjust the compression degree of the spring, thereby increasing the elastic pressure of the spring on the fifth transmission wheel 29, so as to effectively increase the friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby enabling the friction wheel to rotate faster when the fifth transmission wheel 29 rotates, thereby effectively increasing the rotating speed of the central shaft 27 and the take-up roller 28, and effectively increasing the take-up tension of the heating wire.

[0034] In the embodiment, a friction wheel is fixedly installed on the central shaft 27, the fifth transmission wheel 29 is movably sleeved on the central shaft 27, a friction pad is arranged between the friction wheel and the fifth transmission wheel 29, a spring is arranged on a side of the fifth transmission wheel 29 away from the friction pad, and an adjusting nut is threadedly connected to the rear end of the central shaft 27, so that the two ends of the spring are respectively abutted against the fifth transmission wheel 29 and the adjusting nut. Thus, the fifth transmission wheel 29 is abutted against the friction wheel through the elastic pressure of the spring, and the friction wheel is driven to rotate by the fifth transmission wheel 29 through the sliding friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby driving the central shaft 27 to rotate and the take-up roller 28 to rotate. When the rotating speed of the take-up roller 28 needs to be adjusted, the adjusting nut is rotated to adjust the compression degree of the spring, thereby increasing the elastic pressure of the spring on the fifth transmission wheel 29, so as to effectively increase the friction force between the fifth transmission wheel 29, the friction pad and the friction wheel, thereby enabling the friction wheel to rotate faster when the fifth transmission wheel 29 rotates, thereby effectively increasing the rotating speed of the central shaft 27 and the take-up roller 28, and effectively increasing the take-up tension of the heating wire.

[0035] In Example 4, as a further preferred embodiment of Example 1, the outer surfaces of both the first guide roller 14 and the second guide roller 16 are surrounded by multiple guide grooves. By sequentially winding the core wire into each of the winding grooves on the outer circumference of the first guide roller 14 and the second guide roller 16, a multiple winding effect of the core wire is achieved, thereby ensuring that the rotation of the first guide roller 14 can drive the core wire to move synchronously.

[0036] Example 5, as Figure 5 As shown, as a further preferred embodiment of the first embodiment, the winding block 7 includes a mounting post 71, which is fixedly fitted onto the right end of the hollow shaft 3. A guide ring 72 is provided along the circumference of the right end face of the mounting post 71, and a wire guide hole 73 is opened on the surface of the guide ring 72. A wire exiting cone 74 is fixedly installed in the middle of the right end face of the mounting post 71. A through hole is opened in the middle of the wire exiting cone 74, which is connected to the hollow cavity of the hollow shaft 3.

[0037] Therefore, during operation, after the core wire passes through the hollow cavity of the hollow shaft 3, it exits through the through hole in the middle of the wire exiting taper 74. The resistance alloy wire on the pay-off roller 6 first passes through the guide hole 73 on the surface of the guide ring 72, and then is guided by the inclined surface on the outer surface of the wire exiting taper 74 to be parallel with the core wire. Thus, the rotation of the hollow shaft 3 can drive the entire winding block 7 to rotate, thereby allowing the resistance alloy wire on the pay-off roller 6 to be evenly wound on the outer surface of the core wire.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heating wire resistance adjusting device of a winding machine, characterized by: Including base (1), the upper surface left side of base (1) is provided with winding assembly, the winding assembly includes support seat (2) and left and right through hollow shaft (3), the hollow shaft (3) is rotatably connected with support seat (2) by bearing, the left end outer surface of hollow shaft (3) is fixedly installed with first transmission wheel (4), the right end of hollow shaft (3) passes through support seat (2) and is sequentially fixedly installed with drive wheel (5) and pay-off drum (6) from left to right, the drive wheel (5) is drivenly connected with the drive end of drive motor by transmission belt, the right end surface of hollow shaft (3) is fixedly installed with winding block (7); The upper surface right side of base (1) is provided with resistance adjustment assembly, the resistance adjustment assembly includes two support cross seats (8) that are parallel to each other and are arranged front and back, first rotating shaft (9) and second rotating shaft (10) are rotatably connected between the two support cross seats (8) by bearing seat respectively, the first rotating shaft (9) and the second rotating shaft (10) are parallel to each other, the outer surface of first rotating shaft (9) is fixedly welded with first tapered column (11), the outer surface of first rotating shaft (9) is fixedly welded with second tapered column (12), the small circular surface of first tapered column (11) and the small circular surface of second tapered column (12) are opposite to each other;Adjusting transmission belt (13) is sleeved on the outer surface of first tapered column (11) and second tapered column (12), the front end of first rotating shaft (9) passes through bearing seat and is fixedly installed with first wire roller (14), the upper surface right side of base (1) is fixedly installed with support block (15), the front side of support block (15) is rotatably connected with second wire roller (16) by rotating shaft, the second wire roller (16) is left and right corresponding with the first wire roller (14), the rear end of second rotating shaft (10) is fixedly installed with fourth transmission wheel (22);The middle of support cross seat (8) located in the front side is provided with horizontal plate (17), the vertical rod (23) is vertically fixedly installed in the middle of horizontal plate (17), the lower end of vertical rod (23) is fixedly installed on support cross seat (8), the left and right sides of horizontal plate (17) are rotatably connected with electrically conductive shaft (18) respectively, the front end of two electrically conductive shafts (18) passes through horizontal plate (17) and is fixedly installed with electrically conductive wheel (19), the rear end of two electrically conductive shafts (18) is installed with electrically conductive slip ring (20), the stator end of electrically conductive slip ring (20) is fixedly installed with power connection guide column, the power connection guide column is connected with resistance meter by wire;The upper end of front side of vertical rod (23) is rotatably connected with wire wheel (21) by rotating shaft;The right side of base (1) is provided with take-up assembly.

2. A heating wire resistance adjusting device of a winding machine according to claim 1, characterized in that: The upper surface of base (1) is fixedly installed with gear box (24), the input shaft of gear box (24) is fixedly installed with second transmission wheel (25), the output shaft of gear box (24) is fixedly installed with third transmission wheel (26), the second transmission wheel (25) is drivingly connected with first transmission wheel (4) by transmission belt, the third transmission wheel (26) is drivingly connected with fourth transmission wheel (22) by transmission belt.

3. A heating wire resistance adjusting device of a winding machine according to claim 2, characterized in that: The take-up assembly comprises a center shaft (27) and a take-up drum (28), the center shaft (27) passes through a support bearing seat and is rotationally connected with the support bearing seat, the outer surface of the front end of the center shaft (27) is fixedly sleeved with the take-up drum (28), the outer surface of the rear end of the center shaft (27) is provided with a fifth transmission wheel (29), the outer surface of the second rotating shaft (10) is fixedly provided with a sixth transmission wheel (30), and the fifth transmission wheel (29) is in transmission connection with the sixth transmission wheel (30).

4. The heater wire resistance adjustment device of claim 1, wherein: The support cross seat (8) on the rear side is fixedly provided with a right-angle mounting column (31), two parallel guide rods (32) are horizontally fixedly arranged between the right-angle mounting column (31) and the vertical rod (23), the guide rods (32) are arranged in parallel with the first rotating shaft (9) and the second rotating shaft (10), the outer surface of the guide rod (32) is slidably connected with a sliding sleeve (33), the lower end of the sliding sleeve (33) is vertically welded with a U-shaped adjusting rod (34), and the adjusting transmission belt (13) is located in the U-shaped groove of the U-shaped adjusting rod (34).

5. The heater wire resistance adjustment device of claim 1, wherein: The outer surfaces of the first wire guide roller (14) and the second wire guide roller (16) are both surrounded by a plurality of wire guide grooves.

6. The heater wire resistance adjustment device of claim 1, wherein: The wire winding block (7) comprises a mounting column (71), the mounting column (71) is fixedly sleeved at the right end of the hollow shaft (3), the right end surface of the mounting column (71) is circumferentially provided with a guide ring (72), the surface of the guide ring (72) is provided with a wire guide hole (73), the right end surface of the mounting column (71) is fixedly provided with a wire outlet taper block (74) in the middle, the wire outlet taper block (74) is provided with a through hole penetrating up and down in the middle, and the through hole is in communication with the hollow cavity of the hollow shaft (3).

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