A diamond wire busbar drawing tension automatic control device and method

Abstract

The present invention relates to an automatic control device and method for the drawing tension of a diamond wire busbar; a first heating material receiving roller is correspondingly installed on the inner side of a feed tension control roller, a first drawing die is correspondingly fixedly installed on the inner side of the first heating material receiving roller, a multi-stage drawing tension control device is arranged on the inner side of the first drawing die, a discharge end of the multi-stage drawing tension control device cooperates with a discharge tension control roller arranged on the front side of the other end of the top of a base, and the front side of the roller body of the discharge tension control roller is meshed with a discharge speed adjustment gear at the output end of a discharge speed adjustment motor through a discharge speed adjustment gear ring; a segmented and graded drawing operation is adopted, and each segment independently implements automatic adjustment and control of the drawing tension, and the optimal drawing tension data required for each segment of the wire body is input into a controller in advance according to the drawing requirements, and then the controller implements speed control according to the set value.

Description

Technical Field

[0001] The present invention relates to the field of machinery, in particular to an intelligent automatic control device for diamond wire drawing, and in particular to an automatic control device and method for diamond wire busbar drawing tension. Background Art

[0002] Diamond wire is the abbreviation of diamond cutting wire, also known as diamond cutting wire or diamond wire. Diamond wire is produced through multiple steps of the mother wire, in which the primary step requires the mother wire to be unwound from the wire roller and then subjected to one or more stages of drawing operations, so that the mother wire with a larger diameter is finally formed into the required diameter through the drawing operation, and then the next step of process preparation is carried out.

[0003] At present, the drawing operation of the diamond wire busbar is to process the busbar into a standard fine wire through the drawing equipment through the wire release, stretching and wire collection. The drawing equipment is accompanied by the operation of one or more stages of drawing operations. After the material is discharged from the die during each stage of drawing, the diameter of the steel wire on both sides of the die will change. This requires that the tension control of each stage of wire release, stretching and wire collection must be improved in precision. In the process of wire release, stretching and wire collection, the speed from wire release to the final speed determines the production efficiency of the entire wire drawing machinery, which is also the most difficult part of the entire system to control. The size of the wire collection tension directly affects the quality of the product. Excessive tension is easy to deform or break, causing the wire to wear. At the same time, the steel wire will extend, and too many central pores will cause insufficient breaking force of the later electroplated finished product. If the tension is too small, axial sliding and dislocation will occur, resulting in uneven final wire collection. The steel wire is easy to jump out of the wire release wheel and wire breakage will occur. At the same time, there will be twisted wires, uneven heating, high surface shrinkage, abnormal wire breakage during drawing, and ultimately affect the performance of the electroplated finished product. In addition, during the drawing process, in addition to the need to control the wire release, stretching and wire winding operations, in order to improve production efficiency, the busbar needs to heat the steel wire during each stage of drawing operation. The drawing efficiency will be greatly improved when the heated steel wire passes through the die.

[0004] Traditional drawing equipment uses multiple flywheels to implement tension control, and its control accuracy is poor. It cannot implement comprehensive tension control in wire release, stretching and wire taking-up operations according to the needs of multi-stage drawing operations. At the same time, it also lacks continuous heating equipment to implement gapless heating treatment operations during the drawing process. Therefore, a diamond wire busbar drawing tension automatic control device and method is provided, which has a simple structure, convenient operation, high degree of automation, precise tension control, and can implement comprehensive graded control of wire release, stretching and wire taking-up through graded tension control, and implement heating or preheating treatment during the drawing process to improve drawing efficiency and final product quality. The device and method have broad market prospects. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a diamond wire busbar drawing tension automatic control device and method which has a simple structure, is easy to operate, has a high degree of automation, and has precise tension control. It can implement comprehensive graded control of wire pay-off, stretching, and wire take-up through graded tension control, and implement heating or preheating treatment during the drawing process to improve the drawing efficiency and the quality of the final product, so as to overcome the defects in the prior art.

[0006] The technical solution of the present invention is implemented as follows: an automatic control device for drawing tension of a diamond wire busbar comprises a base, a feed tension control roller is installed on the rear side of one end of the top of the base, the rear side of the roller body of the feed tension control roller is meshed with the feed speed adjustment gear at the output end of the feed speed adjustment motor through a feed speed adjustment ring gear, a first heating material receiving roller is correspondingly installed on the inner side of the feed tension control roller, a first drawing die is correspondingly fixedly installed on the inner side of the first heating material receiving roller, a multi-stage drawing tension control device is arranged on the inner side of the first drawing die, the discharge end of the multi-stage drawing tension control device cooperates with the discharge tension control roller arranged on the front side of the other end of the top of the base, and the front side of the roller body of the discharge tension control roller is meshed with the discharge speed adjustment gear at the output end of the discharge speed adjustment motor through a discharge speed adjustment ring gear.

[0007] The multi-stage drawing tension control device comprises a support shaft arranged inside the first drawing die, the two ends of the support shaft are fixedly mounted on the top surface of the middle part of the base through shaft brackets, and the first stretching tension adjustment roller, the second stretching tension adjustment roller and the third stretching tension adjustment roller are respectively mounted on the support shaft from back to front through bearings, the first stretching tension adjustment roller, the second stretching tension adjustment roller and the third stretching tension adjustment roller are respectively connected to the first driving gear, the second driving gear and the third driving gear through the first speed adjustment gear ring, the second speed adjustment gear ring and the third speed adjustment gear ring, and the first driving gear, the second driving gear and the third driving gear are respectively connected to the first speed regulating motor, the second speed regulating motor and the third speed regulating motor;

[0008] A second heating receiving roller corresponding to the installation position of the first drawing die is fixedly installed on one side of the second stretching tension adjusting roller, a second drawing die is fixedly installed between the second heating receiving roller and the second stretching tension adjusting roller, a third heating receiving roller is fixedly installed on the other side of the second stretching tension adjusting roller, a third drawing die is fixedly installed between the third heating receiving roller and the third stretching tension adjusting roller, and the other side of the third stretching tension adjusting roller cooperates with the discharge tension control roller.

[0009] The outer surfaces of the feed tension control roller and the discharging tension control roller are both compounded with a wire outer surface protective layer, the feed tension control roller and the discharging tension control roller are respectively installed on the top surface of the base through the feed bracket and the discharging bracket, the outer side of the feed tension control roller cooperates with the busbar pay-off roller, the outer side of the discharging tension control roller cooperates with the take-up roller, the feed speed adjustment gear ring is installed in the circumferential direction of the support body on the rear side of the feed tension control roller, and the discharging speed adjustment gear ring is installed in the circumferential direction of the support body on the front side of the discharging tension control roller.

[0010] The first drawing die is a square block structure with a first drawing die hole at the center. The front side of the outer wall of the first heating receiving roller and the first drawing die hole are on the same plane perpendicular to the base, and the plane is parallel to the front side and rear side of the base.

[0011] The roller diameter of the first stretching tension adjustment roller is not less than the roller diameter of the second stretching tension adjustment roller, the roller diameter of the second stretching tension adjustment roller is not less than the roller diameter of the third stretching tension adjustment roller, and gaps are provided between the first stretching tension adjustment roller and the second stretching tension adjustment roller and between the second stretching tension adjustment roller and the third stretching tension adjustment roller.

[0012] The first speed adjustment gear ring is arranged in the circumferential direction of the rear support body of the first stretching tension adjustment roller, the second speed adjustment gear ring is arranged in the circumferential direction of the rear support body of the second stretching tension adjustment roller, and the third speed adjustment gear ring is arranged in the circumferential direction of the rear support body of the third stretching tension adjustment roller. The diameters of the first speed adjustment gear ring, the second speed adjustment gear ring and the third speed adjustment gear ring are equal.

[0013] The rear side of the outer wall of the second heated connecting roller and the center point of the first drawing die are on the same plane perpendicular to the base, the second drawing die is a square block structure with a second drawing die hole at the center, the front side of the outer wall of the second heated connecting roller and the second drawing die hole are on the same plane perpendicular to the base, the plane where the rear side of the outer wall of the second heated connecting roller is located is the same plane as the plane where the middle part of the first stretching tension adjusting roller is located, and the plane where the front side of the outer wall of the second heated connecting roller is located is the same plane as the plane where the middle part of the second stretching tension adjusting roller is located.

[0014] The rear side of the outer wall of the third heated material receiving roller and the center point of the second drawing die are on the same plane perpendicular to the base. The third drawing die is a square block structure with a third drawing die hole at the center. The front side of the outer wall of the third heated material receiving roller and the third drawing die hole are on the same plane perpendicular to the base. The plane where the rear side of the outer wall of the third heated material receiving roller is located is the same plane as the plane where the middle part of the second stretching tension adjusting roller is located. The plane where the front side of the outer wall of the third heated material receiving roller is located is the same plane as the plane where the middle part of the third stretching tension adjusting roller is located.

[0015] The roller body length of the third stretching tension adjustment roller corresponds to the rear part of the roller body of the discharge tension control roller. The outer surfaces of the first stretching tension adjustment roller, the second stretching tension adjustment roller and the third stretching tension adjustment roller are all provided with a wire outer surface protective layer. The first heating material receiving roller, the second heating material receiving roller and the third heating material receiving roller are respectively arranged on the base through the first roller frame, the second roller frame and the third roller frame. A heating base is fixedly installed on the bottom of the first heating material receiving roller, the second heating material receiving roller and the third heating material receiving roller, a heating coil is arranged on the top of the heating base, and a material receiving roller rotating bearing is mounted on the outer side of the heating base. The first heating material receiving roller, the second heating material receiving roller and the third heating material receiving roller are respectively mounted on the outer sides of the three heating coils through the material receiving roller rotating bearings.

[0016] A control method for the automatic control device for drawing tension of a diamond wire busbar as described above, wherein the method is:

[0017] 1) Connecting the feed speed regulating motor, the first speed regulating motor, the second speed regulating motor, the third speed regulating motor, the discharge speed regulating motor and the three heating bases to the controller of the peripheral device;

[0018] 2) The busbar on the busbar pay-off roller is wound upward from the rear bottom of the feed tension control roller for one circle and then comes out from the front side of the bottom to the right, and then is wound backward from the front upper part of the first heating receiving roller for one circle and then comes out from the front lower part to the right, and after the busbar head is subjected to thinning treatment, it passes through the first drawing die hole set on the first drawing die, and is wound from the rear side of the bottom of the first stretching tension adjustment roller for one circle and then comes out from the front side of the bottom to the right;

[0019] 3) The first speed regulating motor is turned on through the controller, and the first speed regulating motor drives the first speed regulating gear ring to rotate through the first driving gear. At the same time, the feed speed regulating motor drives the feed speed regulating gear ring to rotate through the feed speed regulating gear. The feed speed regulating motor and the first speed regulating motor are automatically controlled in speed according to the busbar diameter through the controller. At the same time, the heating base at the bottom of the first heated receiving roller is turned on through the controller, and the heat is transmitted to the surface of the first heated receiving roller through the heating coil, and the busbar on the surface of the first heated receiving roller is heated and drawn;

[0020] 4) The busbar is discharged from the first drawing die to form a primary wire body. When the length of the primary wire body reaches a preset length, it is wound outward from the lower rear part of the second heating receiving roller for one circle and then discharged from the upper front part to the left. The end position of the primary wire body is subjected to a thinning process and then passes through the second drawing die hole provided on the second drawing die. Then, it is wound around the bottom rear side of the second stretching tension adjusting roller for one circle and then discharged from the bottom front side to the left.

[0021] 5) The second speed regulating motor is turned on by the controller and the speed is automatically controlled. The second speed regulating motor drives the second speed regulating gear ring to rotate through the second driving gear to perform a drawing operation on the primary wire body. During this period, the feed speed regulating motor and the first speed regulating motor are automatically controlled in speed by the controller, and the heating base at the bottom of the second heating receiving roller heats the primary wire body;

[0022] 6) The primary wire body is discharged from the second drawing die to form an intermediate wire body. When the length of the intermediate wire body reaches a preset length, it is wound outward from the bottom of the rear side of the third heating receiving roller for one circle and then comes out from the upper front side to the right. After the end position of the intermediate wire body is refined, it passes through the third drawing die hole set on the third drawing die, and then it is wound around the bottom rear side of the third stretching tension adjusting roller for one circle and then comes out from the front side of the bottom to the right;

[0023] 7) The third speed regulating motor is turned on by the controller and the speed is automatically controlled. The third speed regulating motor drives the third speed regulating gear ring to rotate through the third driving gear to perform a drawing operation on the intermediate wire body. During this period, the feed speed regulating motor, the second speed regulating motor and the first speed regulating motor are automatically controlled in speed by the controller, and the heating base at the bottom of the third heating receiving roller heats the intermediate wire body;

[0024] 8) The intermediate wire body is discharged from the third drawing die to form the final wire body. When the length of the final wire body reaches the preset length, it is wound outward from the bottom of the rear side of the discharge tension control roller for one circle and then discharged to the right from the bottom of the front side. The outer side of the final wire body is connected to the take-up roller. During this period, the feed speed regulating motor, the discharge speed regulating motor, the second speed regulating motor, the third speed regulating motor and the first speed regulating motor are automatically controlled by the controller to automatically control the tension of the busbar, primary wire body, intermediate wire body and final wire body during the drawing process.

[0025] The present invention has the following positive effects: first, the present invention automatically controls the rotation speed of the feed speed regulating motor, the first speed regulating motor, the second speed regulating motor, the third speed regulating motor, the discharging speed regulating motor and the three heating bases through an external controller, and determines the rotation speeds of the feed speed regulating motor, the first speed regulating motor, the second speed regulating motor, the third speed regulating motor and the discharging speed regulating motor according to the diameters of the busbar, the primary wire body, the intermediate wire body and the final wire body, so as to realize automatic tension control of each section of the wire body during the drawing process, adopt a segmented and graded drawing operation, and each section independently implements automatic adjustment and control of the drawing tension. According to the drawing requirements, the optimal drawing tension data required for each section of the wire body is input into the controller in advance, and the controller then controls the rotation speed according to the set value. At the same time, according to the drawing operation during the drawing process, The speed of the motor is adjusted during operation, and the overall motor cooperates to complete the tension control of multi-stage drawing operations to avoid defects in finished products caused by excessive or insufficient tension. The speeds of the feed speed adjustment motor, the first speed adjustment motor, the second speed adjustment motor, the third speed adjustment motor, and the discharge speed adjustment motor cooperate with each other to adjust the speed increase step by step to adapt to the gradually thinning drawing operation of the busbar. At the same time, when the tension fluctuates, it can be adjusted in sections respectively. The first stretching tension adjustment roller, the second stretching tension adjustment roller, and the third stretching tension adjustment roller have different diameters and different speeds to complete the segmented tension control requirements of the busbar drawing and thinning. In conjunction with the use of the heating base and the heating coil, the heating receiving roller is preheated before each section of the mold feeding and drawing to achieve automatic control of the diamond wire busbar drawing tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0027] Figure 2 It is a rear structural schematic diagram of the present invention.

[0028] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0029] Figure 4 It is a left-side structural schematic diagram of the present invention.

[0030] Figure 5 It is a right view structural schematic diagram of the present invention.

[0031] Figure 6 For the present invention Figure 3 Schematic diagram of the AA cross-section structure.

[0032] Figure 7 It is one of the partial structural schematic diagrams of the present invention.

[0033] Figure 8 This is the second schematic diagram of the local structure of the present invention. DETAILED DESCRIPTION

[0034] like Figure 1 , 2 As shown in Figures 3, 4, 5, 6, 7 and 8, an automatic control device for drawing tension of a diamond wire busbar comprises a base 1, a feed tension control roller 2 is installed on the rear side of one end of the top of the base 1, the feed tension control roller 2 is externally connected to a feed pay-off roller, and the feed speed is adjusted by the rotation and speed control of the motor 30 to control the feed pay-off of the busbar 5. The rear side of the roller body of the feed tension control roller 2 is meshed with the feed speed adjusting gear 4 at the output end of the feed speed adjusting motor 30 through the feed speed adjusting ring gear 3, and a first heating material receiving roller 6 is correspondingly installed on the inner side of the feed tension control roller 2, and a first drawing mold 7 is correspondingly fixedly installed on the inner side of the first heating material receiving roller 6, and a multi-stage drawing tension control device is arranged on the inner side of the first drawing mold 7, and the discharge end of the multi-stage drawing tension control device cooperates with the discharge tension control roller 24 arranged on the front side of the other end of the top of the base 1, and the front side of the roller body of the discharge tension control roller 24 is meshed with the discharge speed adjusting gear 26 at the output end of the discharge speed adjusting motor 28 through the discharge speed adjusting ring gear 25.

[0035] When the product is in operation, the feed tension control is implemented by the feed speed regulating motor 30, the multi-stage drawing tension control device is used to implement multi-stage tension control during the drawing process, and the discharge speed regulating motor 28 is used to implement discharge tension control and wire winding of the final wire. The wire release, stretching and wire winding operations during the drawing process all implement tension segmentation control, thereby improving the accuracy of tension control.

[0036] The multi-stage drawing tension control device includes a support shaft 9 arranged inside the first drawing die 7, and the two ends of the support shaft 9 are fixedly mounted on the top surface of the middle part of the base 1 through a shaft bracket 8, and the shaft bracket 8 is fixedly mounted on the two ends of the support shaft 9. Positioning baffles 10 are fixedly mounted on the two ends of the support shaft 9. The first stretching tension adjustment roller 11, the second stretching tension adjustment roller 17 and the third stretching tension adjustment roller 21 are respectively mounted on the support shaft 9 from back to front through bearings, and a spacing is set between the three stretching tension adjustment rollers, and the spacing is maintained. The three stretching tension adjustment rollers are sleeved on the outside of the support shaft 9 through three positioning bearings.

[0037] The first stretching tension adjusting roller 11, the second stretching tension adjusting roller 17 and the third stretching tension adjusting roller 21 are connected to the first driving gear 13, the second driving gear 16 and the third driving gear 23 through the first speed adjusting gear ring 12, the second speed adjusting gear ring 18 and the third speed adjusting gear ring 22 respectively, and the first driving gear 13, the second driving gear 16 and the third driving gear 23 are connected to the first speed regulating motor 38, the second speed regulating motor 39 and the third speed regulating motor 40 respectively; the first speed regulating gear ring 12, the second speed regulating gear ring 18 and the third speed regulating gear ring 22 are rotated and speed-regulated by adjusting the speed of the first speed regulating motor 38, the second speed regulating motor 39 and the third speed regulating motor 40. After adjustment, the speed of the speed regulating motor 38 is not greater than the speed of the second speed regulating motor 39, and the speed of the second speed regulating motor 39 is not greater than the speed of the third speed regulating motor 40. Because the busbar becomes thinner and its length increases each time it passes through the mold during drawing, and the first speed regulating gear ring 12, the second speed regulating gear ring 18 and the third speed regulating gear ring 22 are located in the middle of the molds, the three speed regulating gear rings rotate at variable speeds to achieve segmented tension control and wire drawing for wires of different lengths. According to the drawing fineness requirements of the busbar, the first speed regulating gear ring 12, the second speed regulating gear ring 18 and the third speed regulating gear ring 22 are set. The speed regulating gear rings can be one or distributed in an odd number, and are specifically set according to the drawing fineness requirements.

[0038] A second heating receiving roller 14 corresponding to the installation position of the first drawing die 7 is fixedly installed on one side of the second stretching tension adjusting roller 17, a second drawing die 15 is fixedly installed between the second heating receiving roller 14 and the second stretching tension adjusting roller 17, a third heating receiving roller 19 is fixedly installed on the other side of the second stretching tension adjusting roller 17, a third drawing die 20 is fixedly installed between the third heating receiving roller 19 and the third stretching tension adjusting roller 21, and the other side of the third stretching tension adjusting roller 21 cooperates with the discharge tension control roller 24.

[0039] The outer surface of the feed tension control roller 2 and the discharge tension control roller 24 are both compounded with a wire outer surface protective layer, and the outer surface protective layer of the wire is used to protect the outer side of the steel wire before and after drawing to prevent wear, effectively improving the quality of the finished product and the stability of the product during operation. The feed tension control roller 2 and the discharge tension control roller 24 are respectively installed on the top surface of the base 1 through the feed bracket 31 and the discharge bracket 29, the outer side of the feed tension control roller 2 cooperates with the busbar pay-off roller, and the outer side of the discharge tension control roller 24 cooperates with the take-up roller. The feed speed adjustment gear ring 3 is installed in the circumferential direction of the rear support body of the feed tension control roller 2, and the discharge speed adjustment gear ring 25 is installed in the circumferential direction of the front support body of the discharge tension control roller 24.

[0040] The first drawing die 7 is a square block structure with a first drawing die hole at the center, and the front side of the outer wall of the first heating material receiving roller 6 and the first drawing die hole are on the same plane perpendicular to the base 1, and the plane is parallel to the front side and the rear side of the base 1. The second drawing die 20 is a square block structure with a second drawing die hole at the center, and the third drawing die 20 is a square block structure with a third drawing die hole at the center. The bottom sides of the first drawing die 7, the second drawing die 15 and the third drawing die 20 are respectively connected to the top of the base 1 by disassembly bolts 34, and a threaded hole matching the disassembly bolts 34 is provided at the top of the base 1.

[0041] The roller diameter of the first stretching tension adjusting roller 11 is not less than the roller diameter of the second stretching tension adjusting roller 17, the roller diameter of the second stretching tension adjusting roller 17 is not less than the roller diameter of the third stretching tension adjusting roller 21, and gaps are provided between the first stretching tension adjusting roller 11 and the second stretching tension adjusting roller 17, and between the second stretching tension adjusting roller 17 and the third stretching tension adjusting roller 21. The first speed adjustment gear ring 12 is arranged in the circumferential direction of the support body on the rear side of the first stretching tension adjusting roller 11, the second speed adjustment gear ring 18 is arranged in the circumferential direction of the support body on the rear side of the second stretching tension adjusting roller 17, and the third speed adjustment gear ring 22 is arranged in the circumferential direction of the support body on the rear side of the third stretching tension adjusting roller 21, and the diameters of the first speed adjustment gear ring 12, the second speed adjustment gear ring 18 and the third speed adjustment gear ring 22 are equal.

[0042] The rear side of the outer wall of the second heated material receiving roller 14 and the center point of the first drawing die 7 are on the same plane perpendicular to the base 1, the front side of the outer wall of the second heated material receiving roller 14 and the second drawing die hole are on the same plane perpendicular to the base 1, the plane where the rear side of the outer wall of the second heated material receiving roller 14 is located is the same plane as the plane where the middle part of the roller body of the first stretching tension adjusting roller 11 is located, and the plane where the front side of the outer wall of the second heated material receiving roller 14 is located is the same plane as the plane where the middle part of the roller body of the second stretching tension adjusting roller 17 is located. The rear side of the outer wall of the third heated material receiving roller 19 and the center point of the second drawing die 15 are on the same plane perpendicular to the base 1, the front side of the outer wall of the third heated material receiving roller 19 and the third drawing die hole are on the same plane perpendicular to the base 1, the plane where the rear side of the outer wall of the third heated material receiving roller 19 is located is the same plane as the plane where the middle part of the roller body of the second stretching tension adjusting roller 17 is located, and the plane where the front side of the outer wall of the third heated material receiving roller 19 is located is the same plane as the plane where the middle part of the roller body of the third stretching tension adjusting roller 21 is located. The roller body length of the third stretching tension adjustment roller 21 corresponds to the rear part of the roller body of the discharge tension control roller 24. The outer surfaces of the first stretching tension adjustment roller 11, the second stretching tension adjustment roller 17 and the third stretching tension adjustment roller 21 are all provided with a wire outer surface protective layer. The first heating material receiving roller 6, the second heating material receiving roller 14 and the third heating material receiving roller 19 are respectively arranged on the base 1 through the first roller frame 32, the second roller frame 33 and the third roller frame 35. A heating base 41 is fixedly installed at the bottom of the first heating material receiving roller 6, the second heating material receiving roller 14 and the third heating material receiving roller 19. A heating coil 43 is arranged on the top of the heating base 41. A material receiving roller rotating bearing 42 is sleeved on the outer side of the heating base 41. The first heating material receiving roller 6, the second heating material receiving roller 14 and the third heating material receiving roller 19 are respectively sleeved on the outer sides of the three heating coils 43 through the material receiving roller rotating bearings 42.

[0043] The bottoms of the first heated material receiving roller 6, the second heated material receiving roller 14 and the third heated material receiving roller 19 are respectively connected to the top of the outer rotating body of the material receiving roller rotating bearing 42, the inner fixed body of the material receiving roller rotating bearing 42 is sleeved on the outer side of the hollow cylindrical shaft protruding from the top surface of the heating base 41, and the bottom of the heating coil 43 passes through the inner cavity of the hollow cylindrical shaft and is connected to the electric heater in the heating base 41. The first heated material receiving roller 6, the second heated material receiving roller 14 and the third heated material receiving roller 19 are all supported by a ceramic structure, which has good high temperature resistance and thermal conductivity, is conducive to heat conduction, and does not cause wear to the outer surface of the wire. In addition, when the first heated material receiving roller 6, the second heated material receiving roller 14 and the third heated material receiving roller 19 are running in the drawing operation, they can respectively follow the rotation of the feed speed regulating motor 30, the first speed regulating motor 38, the second speed regulating motor 39, the third speed regulating motor 40 and the discharge speed regulating motor 28 to implement a driven rotation operation to heat the wire body wrapped around the outside.

[0044] A control method for a diamond wire busbar drawing tension automatic control device, the method comprising: connecting a feed speed regulating motor 30, a first speed regulating motor 38, a second speed regulating motor 39, a third speed regulating motor 40, a discharging speed regulating motor 28 and three heating bases 41 to an external controller; winding a busbar 5 on a busbar unwinding roller upward from the rear bottom of a feed tension control roller 2 for one circle and then exiting from the front side to the right, then winding backward from the front upper part of a first heating receiving roller 6 for one circle and then exiting from the front lower part to the right, performing a thinning treatment on the head of the busbar 5 and then passing through a first drawing die hole provided on a first drawing die 7, and winding from the bottom rear side of a first stretching tension adjusting roller 11 for one circle and then exiting from the front side to the right;

[0045] The first speed regulating motor 38 is turned on by the controller, and the first speed regulating motor 38 drives the first speed regulating gear ring 12 to rotate through the first driving gear 13. At the same time, the feed speed regulating motor 30 drives the feed speed regulating gear ring 3 to rotate through the feed speed regulating gear 4. The feed speed regulating motor 30 and the first speed regulating motor 38 are automatically controlled by the controller according to the diameter of the busbar 5. At the same time, the heating base 41 at the bottom of the first heating receiving roller 6 is turned on by the controller, and the heat is transmitted to the first heating receiving roller through the heating coil 43. 6 surface, the busbar 5 on the surface of the first heated receiving roller 6 is subjected to a heating and drawing treatment; the busbar 5 is discharged from the first drawing die 7 to form a primary wire body 36, and when the length of the primary wire body 36 reaches a preset length, it is wound outward from the lower rear part of the second heated receiving roller 14 for one circle and then comes out from the upper front part to the left, the end position of the primary wire body 36 is subjected to a thinning treatment and then passes through the second drawing die hole provided on the second drawing die 15, and then is wound around the bottom rear side of the second stretching tension adjusting roller 17 for one circle and then comes out from the bottom front side to the left.

[0046] The second speed regulating motor 39 is turned on by the controller and the speed is automatically controlled. The second speed regulating motor 39 drives the second speed regulating gear ring 18 to rotate through the second driving gear 16, and the primary wire body 36 is subjected to a drawing operation. During this period, the feed speed regulating motor 30 and the first speed regulating motor 38 are automatically controlled in speed by the controller, and the heating base 41 at the bottom of the second heating receiving roller 14 performs a heating treatment on the primary wire body 36; the primary wire body 36 is discharged from the second drawing die 15 to form an intermediate wire body 37. When the length of the intermediate wire body 37 reaches a preset length, it is wound outward from the bottom of the rear side of the third heating receiving roller 19 for one circle and then comes out to the right from the upper front side. After the end position of the intermediate wire body 37 is refined, it passes through the third drawing die hole set on the third drawing die 20, and then it is wound around the bottom rear side of the third stretching tension adjusting roller 21 for one circle and then comes out to the right from the bottom front side;

[0047] The third speed regulating motor 40 is turned on by the controller and the speed is automatically controlled. The third speed regulating motor 40 drives the third speed regulating gear ring 22 to rotate through the third driving gear 23, and the intermediate wire body 37 is subjected to the drawing operation. During this period, the feed speed regulating motor 30, the second speed regulating motor 39 and the first speed regulating motor 38 are automatically controlled by the controller, and the heating base 41 at the bottom of the third heating receiving roller 19 heats the intermediate wire body 37; the intermediate wire body 37 is discharged from the third drawing die 20 to form the final wire body When the length of the final wire body 27 reaches a preset length, it is wound outward from the bottom of the rear side of the discharge tension control roller 24 for one circle and then discharged from the bottom of the front side to the right. The outer side of the final wire body 27 is connected to the take-up roller. During this period, the feed speed regulating motor 30, the discharge speed regulating motor 28, the second speed regulating motor 39, the third speed regulating motor 40 and the first speed regulating motor 38 are automatically controlled by the controller to automatically control the tension of the busbar 5, the primary wire body 36, the intermediate wire body 37 and the final wire body 27 during the drawing process.

[0048] Example 1: Figure 1 , 2 As shown in Figures 3, 4, 5, 6, 7, and 8, this embodiment uses three stretching tension adjustment rollers, namely the first stretching tension adjustment roller 11, the second stretching tension adjustment roller 17, and the third stretching tension adjustment roller 21. The drawing and grading implemented in this embodiment is a three-level graded drawing operation. The busbar passes through three drawing dies from feeding to discharging, namely the first drawing die 7, the second drawing die 15, and the third drawing die 20. The busbar 5 on the busbar pay-off roller is wound upward from the rear bottom of the feed tension control roller 2 for one circle and then comes out from the bottom front to the right, then is wound backward from the front upper part of the first heated material receiving roller 6 for one circle and then comes out from the front lower part to the right, the head of the busbar 5 is subjected to thinning treatment and then passes through the first drawing die hole set on the first drawing die 7, and is wound from the bottom rear side of the first stretching tension adjusting roller 11 for one circle and then comes out from the bottom front to the right; the feed speed regulating motor 30 has the slowest speed, followed by the first speed regulating motor 38, and the speeds of the second speed regulating motor 39, the third speed regulating motor 40 and the discharge speed regulating motor 28 are gradually increased, the thinning treatment of the head of the busbar 5 is completed by using an independent external drawing device, or is implemented by mechanical grinding, the grinding of the head of the busbar 5 can be carried out by graded multiple grinding according to the drawing die hole that needs to be passed through each time, or it can be ground once according to the inner diameter of the last drawing die hole, and the head of the busbar 5 can pass through the drawing die hole after grinding.

[0049] The first speed regulating motor 38 is turned on by the controller, and the first speed regulating motor 38 drives the first speed regulating ring gear 12 to rotate through the first driving gear 13. At the same time, the feed speed regulating motor 30 drives the feed speed regulating ring gear 3 to rotate through the feed speed regulating gear 4. The speed of the feed speed regulating motor 30 and the first speed regulating motor 38 is automatically controlled by the controller according to the diameter of the busbar 5. The speed of the feed speed regulating motor 30 is the slowest, followed by the first speed regulating motor 38. The speeds of the second speed regulating motor 39, the third speed regulating motor 40, and the discharge speed regulating motor 28 all need to be controlled according to the diameter of the graded drawing wire body, and also need to be controlled according to the length change after and before discharge from the mold discharge hole. These data need to be calculated and saved before operation, and finally controlled by the controller.

[0050] The heating base 41 at the bottom of the first heated material receiving roller 6 is turned on by the controller, and the inner fixed body of the rotating bearing 42 of the material receiving roller is sleeved on the outer side of the hollow cylindrical shaft protruding from the top surface of the heating base 41, and the bottom of the heating coil 43 passes through the inner cavity of the hollow cylindrical shaft and is connected to the electric heater in the heating base 41. The heat is transmitted to the surface of the first heated material receiving roller 6 through the heating coil 43, and the busbar 5 on the surface of the first heated material receiving roller 6 is subjected to heating and drawing treatment. The busbar 5 is discharged from the first drawing die 7 to form a primary wire body 36. When the length of the primary wire body 36 reaches a preset length, it is wound outward from the lower part of the rear side of the second heated material receiving roller 14 for one circle and then discharged from the upper part of the front side to the left. After the end position of the primary wire body 36 is subjected to a thinning treatment, it passes through the second drawing die hole set on the second drawing die 15, and then is wound around the bottom rear side of the second stretching tension adjustment roller 17 for one circle and then discharged from the bottom front side to the left.

[0051] The length of the primary wire body 36 is not greater than the length of the intermediate wire body 37, the length of the intermediate wire body 37 is not greater than the length of the final wire body 27, the speed of the feed speed regulating motor 30 is not greater than the speed of the first speed regulating motor 38, the speed of the first speed regulating motor 38 is not greater than the speed of the second speed regulating motor 39, the speed of the second speed regulating motor 39 is not greater than the speed of the third speed regulating motor 40, and the speed of the third speed regulating motor 40 is not greater than the speed of the discharge speed regulating motor 28. After each drawing die is discharged, the winding and drawing operation is carried out by the speed regulating motor in its downstream direction.

[0052] The second speed regulating motor 39 is turned on by the controller and the speed is automatically controlled. The second speed regulating motor 39 drives the second speed regulating ring gear 18 to rotate through the second driving gear 16 to perform a drawing operation on the primary wire body 36. During this period, the feed speed regulating motor 30 and the first speed regulating motor 38 are automatically controlled by the controller, and the heating base 41 at the bottom of the second heating receiving roller 14 performs a heating treatment on the primary wire body 36; the primary wire body 36 is discharged from the second drawing die 15 to form an intermediate wire body 37. When the length of the intermediate wire body 37 reaches a preset length, it is wound outward from the bottom of the rear side of the third heating receiving roller 19 for one circle and then comes out from the upper front part to the right. After the end position of the intermediate wire body 37 is refined, it passes through the third drawing die hole set on the third drawing die 20, and then is wound around the bottom rear side of the third stretching tension adjusting roller 21 for one circle and then comes out from the front side of the bottom to the right.

[0053] The third speed regulating motor 40 is turned on by the controller and the speed is automatically controlled. The third speed regulating motor 40 drives the third speed regulating gear ring 22 to rotate through the third driving gear 23, and the intermediate wire body 37 is subjected to the drawing operation. During this period, the feed speed regulating motor 30, the second speed regulating motor 39 and the first speed regulating motor 38 are automatically controlled by the controller, and the heating base 41 at the bottom of the third heating receiving roller 19 heats the intermediate wire body 37; the intermediate wire body 37 is discharged from the third drawing die 20 to form the final wire body When the length of the final wire body 27 reaches a preset length, it is wound outward from the bottom of the rear side of the discharge tension control roller 24 for one circle and then discharged from the bottom of the front side to the right. The outer side of the final wire body 27 is connected to the take-up roller. During this period, the feed speed regulating motor 30, the discharge speed regulating motor 28, the second speed regulating motor 39, the third speed regulating motor 40 and the first speed regulating motor 38 are automatically controlled by the controller to automatically control the tension of the busbar 5, the primary wire body 36, the intermediate wire body 37 and the final wire body 27 during the drawing process.

[0054] The bottom sides of the first drawing die 7, the second drawing die 15 and the third drawing die 20 are respectively connected to the top of the base 1 by disassembly bolts 34, and the top of the base 1 is provided with threaded holes that match the disassembly bolts 34. According to the diameter and requirements of the wire body to be processed, the replacement, addition or removal of different drawing dies is implemented, and the speed regulating motor matched with the drawing die is also increased or decreased accordingly, and the number of heating material receiving rollers and stretching tension adjustment rollers is also increased or decreased accordingly.

[0055] 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 diamond wire busbar drawing tension automatic control device, comprising a base (1), characterized in that: A feed tension control roller (2) is installed on the rear side of one end of the top of the base (1), and the rear side of the roller body of the feed tension control roller (2) is meshed with the feed speed adjustment gear (4) at the output end of the feed speed adjustment motor (30) through the feed speed adjustment gear ring (3). A first heating material receiving roller (6) is correspondingly installed on the inner side of the feed tension control roller (2), and a first drawing die (7) is correspondingly fixedly installed on the inner side of the first heating material receiving roller (6). A multi-stage drawing tension control device is arranged on the inner side of the first drawing die (7), and the discharge end of the multi-stage drawing tension control device cooperates with the discharge tension control roller (24) arranged on the front side of the other end of the top of the base (1), and the front side of the roller body of the discharge tension control roller (24) is meshed with the discharge speed adjustment gear (26) at the output end of the discharge speed adjustment motor (28) through the discharge speed adjustment gear ring (25); The multi-stage drawing tension control device comprises a support shaft (9) arranged on the inner side of the first drawing die (7), the two ends of the support shaft (9) are fixedly mounted on the middle top surface of the base (1) through shaft brackets (8), and a first stretching tension adjustment roller (11), a second stretching tension adjustment roller (17) and a third stretching tension adjustment roller (21) are respectively mounted on the support shaft (9) from back to front through bearings, the first stretching tension adjustment roller (11), the second stretching tension adjustment roller (17) and the third stretching tension adjustment roller (21) are respectively connected to the first driving gear (13), the second driving gear (16) and the third driving gear (23) through the first speed adjustment gear ring (12), the second speed adjustment gear ring (18) and the third speed adjustment gear ring (22), and the first driving gear (13), the second driving gear (16) and the third driving gear (23) are respectively connected to the first speed regulating motor (38), the second speed regulating motor (39) and the third speed regulating motor (40); A second heating material receiving roller (14) corresponding to the installation position of the first drawing die (7) is fixedly installed on one side of the second stretching tension adjusting roller (17); a second drawing die (15) is fixedly installed between the second heating material receiving roller (14) and the second stretching tension adjusting roller (17); a third heating material receiving roller (19) is fixedly installed on the other side of the second stretching tension adjusting roller (17); a third drawing die (20) is fixedly installed between the third heating material receiving roller (19) and the third stretching tension adjusting roller (21); and the other side of the third stretching tension adjusting roller (21) cooperates with a discharge tension control roller (24); The invention also includes an external controller, and the feed speed regulating motor (30), the first speed regulating motor (38), the second speed regulating motor (39), the third speed regulating motor (40) and the discharge speed regulating motor (28) are automatically controlled in rotation speed by the external controller.

2. The automatic control device for drawing tension of a diamond wire busbar according to claim 1 is characterized in that: The outer surfaces of the feed tension control roller (2) and the discharge tension control roller (24) are both composited with a wire outer surface protective layer. The feed tension control roller (2) and the discharge tension control roller (24) are respectively mounted on the top surface of the base (1) through a feed bracket (31) and a discharge bracket (29). The outer side of the feed tension control roller (2) cooperates with the busbar pay-off roller, and the outer side of the discharge tension control roller (24) cooperates with the take-up roller. The feed speed adjustment gear ring (3) is mounted on the circumferential direction of the rear support body of the feed tension control roller (2), and the discharge speed adjustment gear ring (25) is mounted on the circumferential direction of the front support body of the discharge tension control roller (24).

3. The automatic control device for drawing tension of a diamond wire busbar according to claim 1 is characterized in that: The first drawing die (7) is a square block structure with a first drawing die hole at the center, the front side of the outer wall of the first heating material receiving roller (6) and the first drawing die hole are on the same plane perpendicular to the base (1), and the plane is parallel to the front side and rear side of the base (1).

4. The automatic control device for drawing tension of a diamond wire busbar according to claim 1 is characterized in that: The roller body diameter of the first stretching tension adjustment roller (11) is not less than the roller body diameter of the second stretching tension adjustment roller (17), the roller body diameter of the second stretching tension adjustment roller (17) is not less than the roller body diameter of the third stretching tension adjustment roller (21), and gaps are provided between the first stretching tension adjustment roller (11) and the second stretching tension adjustment roller (17) and between the second stretching tension adjustment roller (17) and the third stretching tension adjustment roller (21).

5. The automatic control device for drawing tension of a diamond wire busbar according to claim 1 is characterized in that: The first speed adjustment gear ring (12) is arranged in the circumferential direction of the rear support body of the first stretching tension adjustment roller (11), the second speed adjustment gear ring (18) is arranged in the circumferential direction of the rear support body of the second stretching tension adjustment roller (17), and the third speed adjustment gear ring (22) is arranged in the circumferential direction of the rear support body of the third stretching tension adjustment roller (21), and the diameters of the first speed adjustment gear ring (12), the second speed adjustment gear ring (18) and the third speed adjustment gear ring (22) are equal.

6. The automatic control device for drawing tension of a diamond wire busbar according to claim 1 is characterized in that: The rear side of the outer wall of the second heated material receiving roller (14) and the center point of the first drawing die (7) are on the same plane perpendicular to the base (1); the second drawing die (15) is a square block structure with a second drawing die hole opened at the center; the front side of the outer wall of the second heated material receiving roller (14) and the second drawing die hole are on the same plane perpendicular to the base (1); the plane where the rear side of the outer wall of the second heated material receiving roller (14) is located is the same plane as the plane where the middle part of the roller body of the first stretching tension adjustment roller (11) is located; and the plane where the front side of the outer wall of the second heated material receiving roller (14) is located is the same plane as the plane where the middle part of the roller body of the second stretching tension adjustment roller (17) is located.

7. The automatic control device for drawing tension of a diamond wire busbar according to claim 1, characterized in that: The rear side of the outer wall of the third heated material receiving roller (19) and the center point of the second drawing die (15) are on the same plane perpendicular to the base (1); the third drawing die (20) is a square block structure with a third drawing die hole opened at the center; the front side of the outer wall of the third heated material receiving roller (19) and the third drawing die hole are on the same plane perpendicular to the base (1); the plane where the rear side of the outer wall of the third heated material receiving roller (19) is located is the same plane as the plane where the middle part of the roller body of the second stretching tension adjustment roller (17) is located; and the plane where the front side of the outer wall of the third heated material receiving roller (19) is located is the same plane as the plane where the middle part of the roller body of the third stretching tension adjustment roller (21) is located.

8. The automatic control device for drawing tension of a diamond wire busbar according to claim 2 is characterized in that: The roller body length of the third stretching tension adjustment roller (21) corresponds to the rear part of the roller body of the discharge tension control roller (24); the outer surfaces of the first stretching tension adjustment roller (11), the second stretching tension adjustment roller (17) and the third stretching tension adjustment roller (21) are all provided with a wire outer surface protection layer; the first heating material receiving roller (6), the second heating material receiving roller (14) and the third heating material receiving roller (19) are respectively arranged on the base (32), the second roller frame (33) and the third roller frame (35) 1), a heating base (41) is fixedly installed at the bottom of the first heating material receiving roller (6), the second heating material receiving roller (14) and the third heating material receiving roller (19), a heating coil (43) is arranged on the top of the heating base (41), and a material receiving roller rotating bearing (42) is sleeved on the outer side of the heating base (41), and the first heating material receiving roller (6), the second heating material receiving roller (14) and the third heating material receiving roller (19) are respectively sleeved on the outer sides of the three heating coils (43) through the material receiving roller rotating bearings (42).

9. A control method for the automatic control device for drawing tension of a diamond wire busbar as claimed in claim 8, characterized in that: The method is: 1) connecting a feed speed regulating motor (30), a first speed regulating motor (38), a second speed regulating motor (39), a third speed regulating motor (40), a discharge speed regulating motor (28) and three heating bases (41) to an external controller; 2) The busbar (5) on the busbar pay-off roller is wound upward from the rear bottom of the feed tension control roller (2) for one round and then exits from the front side of the bottom to the right, and then is wound backward from the front upper part of the first heating receiving roller (6) for one round and then exits from the front lower part to the right, and after the head of the busbar (5) is subjected to a thinning treatment, it passes through the first drawing die hole provided on the first drawing die (7), and is wound from the rear side of the bottom of the first stretching tension adjustment roller (11) for one round and then exits from the front side of the bottom to the right; 3) The first speed regulating motor (38) is turned on through the controller, and the first speed regulating motor (38) drives the first speed regulating ring gear (12) to rotate through the first driving gear (13). At the same time, the feed speed regulating motor (30) drives the feed speed regulating ring gear (3) to rotate through the feed speed regulating gear (4). The speed of the feed speed regulating motor (30) and the first speed regulating motor (38) is automatically controlled through the controller according to the diameter of the busbar (5). At the same time, the heating base (41) at the bottom of the first heating receiving roller (6) is turned on through the controller, and heat is transmitted to the surface of the first heating receiving roller (6) through the heating coil (43), and the busbar (5) on the surface of the first heating receiving roller (6) is subjected to heating and drawing treatment; 4) The busbar (5) is discharged from the first drawing die (7) to form a primary wire body (36). When the length of the primary wire body (36) reaches a preset length, it is wound around the lower rear part of the second heating receiving roller (14) for one circle and then discharged from the upper front part to the left. After the end position of the primary wire body (36) is refined, it passes through the second drawing die hole provided on the second drawing die (15), and then is wound around the bottom rear side of the second stretching tension adjusting roller (17) for one circle and then discharged from the bottom front side to the left. 5) The second speed regulating motor (39) is turned on and the speed is automatically controlled through the controller. The second speed regulating motor (39) drives the second speed regulating gear ring (18) to rotate through the second driving gear (16) to perform a drawing operation on the primary wire body (36). During this period, the feed speed regulating motor (30) and the first speed regulating motor (38) are automatically controlled in speed through the controller, and the heating base (41) at the bottom of the second heating receiving roller (14) performs a heating treatment on the primary wire body (36); 6) The primary wire body (36) is discharged from the second drawing die (15) to form an intermediate wire body (37). When the length of the intermediate wire body (37) reaches a preset length, it is wound around the bottom of the rear side of the third heating receiving roller (19) for one circle and then discharged from the upper front side to the right. After the end position of the intermediate wire body (37) is refined, it passes through the third drawing die hole provided on the third drawing die (20), and then is wound around the bottom rear side of the third stretching tension adjusting roller (21) for one circle and then discharged from the front side of the bottom to the right. 7) The third speed regulating motor (40) is turned on and the speed is automatically controlled through the controller. The third speed regulating motor (40) drives the third speed regulating gear ring (22) to rotate through the third driving gear (23) to perform a drawing operation on the intermediate wire body (37). During this period, the feed speed regulating motor (30), the second speed regulating motor (39) and the first speed regulating motor (38) are automatically controlled in speed through the controller. The heating base (41) at the bottom of the third heating receiving roller (19) performs a heating treatment on the intermediate wire body (37); 8) The intermediate wire body (37) is discharged from the third drawing die (20) to form a final wire body (27). When the length of the final wire body (27) reaches a preset length, it is wound outward from the bottom of the rear side of the discharge tension control roller (24) for one circle and then discharged to the right from the bottom of the front side. The outer side of the final wire body (27) is connected to the wire take-up roller. During this period, the feed speed regulating motor (30), the discharge speed regulating motor (28), the second speed regulating motor (39), the third speed regulating motor (40) and the first speed regulating motor (38) are automatically controlled in speed through the controller, and the tension of the busbar (5), the primary wire body (36), the intermediate wire body (37) and the final wire body (27) during the drawing process is automatically controlled.

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