Bus bar unwinding module

Abstract

The utility model relates to the field of solar stitch welding machines, in particular to a bus bar unwinding module which is characterized in that an unwinding motor is connected with an unwinding disc through an unwinding shaft and a quick-release nut assembly, one end of the unwinding shaft is connected to an output shaft of the unwinding motor, and the unwinding motor drives the unwinding shaft to rotate when working; the other end of the unwinding shaft is suspended and faces the feeding position. The unwinding disc is coaxially arranged on the outer side of the unwinding shaft in a sleeving mode, a step is formed in the middle of the unwinding shaft, the unwinding disc stops moving axially when moving to make contact with the step, a quick-release nut assembly is installed at the other end of the unwinding shaft, and the quick-release nut assembly is screwed in from one end of the unwinding shaft and stops moving axially when making contact with the unwinding disc. At the moment, the unwinding disc is clamped between the steps and the quick-release nut assembly. According to the embodiment of the utility model, the unwinding disc for installing the roll-shaped bus bar is installed on the unwinding shaft through the quick-release nut assembly, and the quick-release nut assembly can be quickly installed or detached, so that the purpose of quickly replacing the roll-shaped bus bar is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of solar welding machine, concretely relates to a busbar unwinding module. BACKGROUND

[0002] In the process of producing solar cells by the welding machine, the following steps need to be performed: straightening, cutting, punching and bending of the wound busbar. The unwinding step of the busbar involves a busbar unwinding module.

[0003] The existing busbar unwinding module (such as CN210754431U) mostly has a winding shaft, a guide wheel and a tension wheel. The wound busbar is installed on the winding shaft, which is driven to rotate by a winding motor to unwind the busbar. The unwound busbar passes through the guide wheel and the tension wheel in turn and is then discharged. The tension wheel can move up and down to balance the unwinding tension and the discharge tension of the busbar.

[0004] After the winding busbar is unwound, an operator needs to replace the winding busbar. At this time, the welding machine needs to be stopped and waited. Therefore, how to quickly replace the winding busbar to improve the production efficiency of the welding machine is a problem that people want to solve. SUMMARY

[0005] The utility model aims to provide a busbar unwinding module to solve the problem of how to quickly replace the winding busbar.

[0006] To solve the above technical problem, the utility model specifically provides the following technical scheme:

[0007] A busbar unwinding module comprises a base, a winding motor, a winding disc, a tension wheel and at least one guide wheel. The wound busbar is installed on the winding disc, which is driven to rotate by the winding motor to unwind the wound busbar. The unwound busbar passes through the guide wheel and the tension wheel in accordance with a preset path and is then discharged. The winding motor and the winding disc are connected through a quick insertion mechanism. The quick insertion mechanism comprises a winding shaft and a quick release nut assembly. The winding shaft is rotatably connected to the base, and the axis of the winding shaft is arranged in the horizontal direction. One end of the winding shaft is connected to the output shaft of the winding motor. The winding motor drives the winding shaft to rotate when it works. The other end of the winding shaft is suspended and faces the feeding position. The winding disc is coaxially sleeved on the outside of the winding shaft. A step is formed in the middle of the winding shaft. The winding disc stops axial movement when it moves to contact the step. The quick release nut assembly is installed on the other end of the winding shaft. The quick release nut assembly is screwed into the one end of the winding shaft. When it contacts the winding disc, it prevents axial movement. At this time, the winding disc is clamped in the middle by the step and the quick release nut assembly.

[0008] Further, the quick release nut assembly comprises a sleeve and two sliders; the sleeve, the sliders and the unwinding shaft have the following positional relationship: the sleeve is provided with a through hole, the sliders are provided with a first long slot, the through hole and the first long slot are parallel to the axis of the unwinding shaft, the length direction of the first long slot is arranged along the radial direction of the unwinding shaft, when the through hole and the first long slot are sleeved on the outside of the unwinding shaft, the through hole allows the sleeve to move along the axis direction of the unwinding shaft, and the first long slot allows the slider to move along the axis and radial direction of the unwinding shaft.

[0009] Further, the sleeve is formed with a sliding groove extending along the radial direction of the unwinding shaft, the two sliders are symmetrical around the axis of the unwinding shaft, the two sliders are both slidingly connected to the sliding groove, one end of each first long slot is provided with a half thread part, when the two sliders are away from each other, the end of the two first long slots are both fitted to the surface of the unwinding shaft, the two half thread parts are combined into a complete threaded hole, and the threaded hole is threadedly connected with the end of the unwinding shaft.

[0010] Further, the two sliders are both connected with a guide column, and the guide column is inserted into the guide hole of the other slider, so that the two sliders can be inserted into each other, and the guide column between the two sliders is provided with a first spring for driving the two sliders away from each other, the first spring always combines the half thread parts of the two sliders into a threaded hole without external force, so as to prevent the unwinding shaft from moving axially by the thread connection of the first spring and the unwinding shaft; when the two sliders are subjected to external force for approaching each other, the two half thread parts are separated from the unwinding shaft, at this time, the through hole and the first long slot allow the quick release nut assembly to move along the axis direction of the unwinding shaft.

[0011] Further, the quick insertion mechanism further comprises: at least two tapered sleeves and a third spring; the unwinding disc, the two tapered sleeves and the third spring are all sleeved on the outside of the unwinding shaft, wherein the unwinding disc has no direct contact with the unwinding shaft, the two tapered sleeves are connected to the unwinding shaft and rotate synchronously with the unwinding shaft, one of the tapered sleeves directly contacts the step of the unwinding shaft, and the other tapered sleeve abuts against the quick release nut assembly through the third spring, under the elastic force of the third spring, the two tapered sleeves are clamped at the two ends of the unwinding disc respectively, and the tapered surfaces of the tapered sleeves contact the shaft hole of the unwinding disc, the two ends of the unwinding disc are aligned with the axis of the unwinding shaft through the guiding action of the two tapered surfaces.

[0012] Further, an outer conical sleeve is coaxially connected with the quick release nut assembly, the conical sleeve has a cylindrical sleeve matching the round hole of the sleeve, and a sleeve cap is connected to the end of the cylindrical sleeve, so that the cylindrical sleeve can move axially in the round hole and cannot be separated from the round hole.

[0013] Further, the quick insertion mechanism further comprises a rotating arm and at least one spring pin, the rotating arm is connected to the unwinding shaft by bolts and rotates synchronously with the unwinding shaft, the rotating arm extends along the radial direction of the unwinding shaft, the spring pin is connected to the rotating arm by bolts, and a side of the winding disc facing the spring pin is formed with a plurality of grooves, when the spring pin is inserted into one of the grooves, the rotating arm can transmit the torque of the unwinding shaft to the winding disc through the spring pin, so that the winding disc and the unwinding shaft rotate synchronously.

[0014] Further, the rotating arm is installed at the stepped position of the unwinding shaft, the rotating arm comprises two swing arms, each swing arm is connected with one spring pin, and a second long slot is formed on the swing arm, and the length direction of the second long slot is arranged along the radial direction of the unwinding shaft.

[0015] Further, the spring pin comprises a first pin seat, a first pin and a second spring, the first pin seat is connected to the swing arm by bolts, a pin hole is arranged on the first pin seat, the axis of the pin hole is parallel to the axis of the unwinding shaft, and the first pin is inserted into the pin hole, so that the first pin can move along the direction parallel to the axis of the unwinding shaft, when the winding disc is sleeved on the unwinding shaft and fixed by the quick release nut assembly, the first pin is inserted into the groove on the end surface of the winding disc.

[0016] Further, a radially outward extending annular flange is formed at one end of the first pin facing the winding disc, a pin cap is connected to the other end of the first pin, and the annular flange and the pin cap are distributed on both sides of the first pin seat, so that the first pin cannot be separated from the first pin seat; the second spring is sleeved outside the first pin, and the two ends of the second spring abut against the first pin seat and the annular flange, so that the second spring always applies elastic force to the first pin after the winding disc contacts the first pin, and the first pin cannot be separated from the groove.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The application provides a busbar unwinding module. A fast dismounting nut assembly is used to quickly mount or dismount a winding disc of a winding busbar on a winding shaft, so as to quickly replace the winding busbar. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and other drawings can be obtained according to the provided drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is a perspective view of the embodiment of the present application;

[0021] Figure 2 It is a left view of the embodiment of the present application;

[0022] Figure 3 It is a front view of the embodiment of the present application;

[0023] Figure 4 It is a sectional view of the A-A direction of Figure 3

[0024] Figure 5 It is an assembly view of the fast dismounting nut assembly of the embodiment of the present application;

[0025] Figure 6 It is an assembly view of the rotating arm and the spring bolt of the embodiment of the present application;

[0026] The numbers in the drawings respectively represent the following:

[0027] ​1-base; 11-horizontal sliding table; 12-horizontal sliding block; 121-handle; 122-hand-operated bolt; 13-second bolt seat; 14-vertical sliding table; 15-vertical sliding block; 16-first detection device; 17-second detection device; 2-unwinding motor; 21-belt transmission mechanism; 3-fast insertion mechanism; 31-unwinding shaft; 311-step; 32-fast disassembly nut assembly; 321-sleeve; 322-round hole; 323-sliding groove; 324-sliding block; 325-first long slot; 326-half thread part; 327-guide column; 328-guide hole; 33-rotating arm; 331-swinging arm; 332-second long slot; 34-spring bolt; 341-first bolt seat; 342-first bolt; 343-annular flange; 344-bolt cap; 345-second spring; 35-tapered sleeve; 351-cylindrical sleeve; 352-sleeve cap; 36-third spring; 4-unwinding disc; 41-groove; 5-tensioning wheel; 6-guide wheel; 61-first guide groove; 62-second guide groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] In the process of welding machine producing solar cells, the following steps need to be performed: unwinding, straightening, slitting, punching and bending of the wound bus bar. The unwinding step of the bus bar involves a bus bar unwinding module.

[0030] The existing bus bar unwinding module (such as CN210754431U) mostly has an unwinding disc 4, a guide wheel 6 and a tensioning wheel 5. The wound bus bar is installed on the unwinding disc 4, which is driven to rotate by the unwinding motor 2 to unwind the bus bar. The unwound bus bar is discharged after passing through the guide wheel 6 and the tensioning wheel 5 in sequence. The tensioning wheel 5 can move up and down to balance the unwinding tension and the discharge tension of the bus bar.

[0031] In combination with the perspective view, side view and front view of the bus bar unwinding module of the utility model shown in Figure 1 , Figure 2 , Figure 3 , the bus bar unwinding module comprises a base 1, an unwinding motor 2, an unwinding disc 4, a tensioning wheel 5 and at least one guide wheel 6. The wound bus bar (not shown in the figure) is installed on the unwinding disc 4. The unwinding disc 4 is driven to rotate by the unwinding motor 2 to unwind the wound bus bar. The unwound bus bar is discharged after passing through the guide wheel 6 and the tensioning wheel 5 according to a preset path.

[0032] In the common butt welding machine, a pulling device (not shown in the figure) is arranged at the discharge position of the bus bar, and the pulling device pulls the bus bar to the slitting process.

[0033] Wherein, the same as the prior art is not listed below, combined Figure 4 The connecting structure of the unwinding motor 2 and the unwinding disc 4 is shown in the figure, the difference between the two is that the unwinding motor 2 and the unwinding disc 4 are connected through the quick plug mechanism 3, which enables the staff to quickly replace the unwinding disc 4 as a whole, thereby improving the speed of replacing the wound bus bar.

[0034] Specifically, the quick plug mechanism 3 includes: an unwinding shaft 31 and a quick release nut assembly 32.

[0035] The unwinding shaft 31 is rotatably connected to the base 1, and the axis of the unwinding shaft 31 is arranged in the horizontal direction. One end of the unwinding shaft 31 is connected to the output shaft of the unwinding motor 2 through the belt transmission mechanism 21. The unwinding motor 2 drives the unwinding shaft 31 to rotate when it is working. The other end of the unwinding shaft 31 is suspended and faces the feeding position, and is used to install the unwinding disc 4.

[0036] The unwinding disc 4 is coaxially sleeved on the outside of the unwinding shaft 31. A step 311 is formed in the middle of the unwinding shaft 31. When the unwinding disc 4 moves to contact the step 311, the axial movement is stopped. The other end of the unwinding shaft 31 is provided with the quick release nut assembly 32. The quick release nut assembly 32 is screwed from one end of the unwinding shaft 31 and prevents axial movement when it contacts the unwinding disc 4. At this time, the unwinding disc 4 is clamped in the middle by the step 311 and the quick release nut assembly 32.

[0037] Further, in order to realize the quick installation and removal of the quick release nut assembly 32, and then realize the quick replacement of the unwinding disc 4, and finally realize the quick replacement of the wound bus bar, combined Figure 4 And Figure 5 The quick release nut assembly 32 includes a sleeve 321 and two sliding blocks 324.

[0038] The positional relationship between the sleeve 321, the sliding block 324 and the unwinding shaft 31: the sleeve 321 is provided with a through circular hole 322, and the sliding block 324 is provided with a through first long slot hole 325. The through directions of the first long slot hole 325 and the circular hole 322 are parallel to the axis of the unwinding shaft 31. The length direction of the first long slot hole 325 is arranged along the radial direction of the unwinding shaft 31. When the circular hole 322 and the first long slot hole 325 are sleeved on the outside of the unwinding shaft 31, the circular hole 322 allows the sleeve 321 to move along the axial direction of the unwinding shaft 31, and the first long slot hole 325 allows the sliding block 324 to move along the axial and radial directions of the unwinding shaft 31.

[0039] The connection relationship between the sleeve 321, the sliding block 324 and the unwinding shaft 31: the sleeve 321 is formed with a sliding groove 323 extending along the radial direction of the unwinding shaft 31, two sliding blocks 324 are symmetrically arranged around the axis of the unwinding shaft 31, and the two sliding blocks 324 are both slidingly connected to the sliding groove 323. One end of each first long slot 325 is provided with a half-threaded part 326. When the two sliding blocks 324 are away from each other, the end of the two first long slots 325 is attached to the surface of the unwinding shaft 31, the two half-threaded parts 326 are combined into a complete threaded hole, and the threaded hole is threadedly connected with the end of the unwinding shaft 31.

[0040] The connection between the quick-release nut assembly 32 and the unwinding shaft 31: preferably, the two sliding blocks 324 are both connected with a guide column 327, and the guide column 327 is inserted into the guide hole 328 on the other sliding block 324, so that the two sliding blocks 324 can be inserted into each other, and the guide column 327 between the two sliding blocks 324 is provided with a first spring (not shown in the figure) for driving the two sliding blocks 324 away from each other. The first spring always combines the half-threaded parts 326 of the two sliding blocks 324 into a threaded hole without external force, so as to prevent the unwinding disc 4 from moving axially by the threaded connection of the threaded hole and the unwinding shaft 31.

[0041] The separation between the quick-release nut assembly 32 and the unwinding shaft 31: when the operator presses the two sliding blocks 324 to make the two sliding blocks 324 close to each other, the two half-threaded parts 326 are separated from the unwinding shaft 31. At this time, the circular hole 322 and the first long slot 325 allow the quick-release nut assembly 32 to move along the axial direction of the unwinding shaft 31, so as to allow the operator to quickly install or remove the quick-release nut assembly 32 from the unwinding disc 4.

[0042] Further, in order to realize the purpose that the unwinding shaft 31 can stably output torque to the unwinding disc 4, in combination with Figure 4 and Figure 6 , the quick-insert mechanism 3 further comprises a rotating arm 33 and at least one spring pin 34.

[0043] The rotating arm 33 is connected to the unwinding shaft 31 by bolts and rotates synchronously with the unwinding shaft 31. The rotating arm 33 extends along the radial direction of the unwinding shaft 31. The spring pin 34 is connected to the rotating arm 33 by bolts. The unwinding disc 4 is formed with a plurality of grooves 41 on the side facing the spring pin 34. When the spring pin 34 is inserted into one of the grooves 41, the rotating arm 33 can transmit the torque of the unwinding shaft 31 to the unwinding disc 4 through the spring pin 34, so that the unwinding disc 4 and the unwinding shaft 31 rotate synchronously.

[0044] Specifically, the rotating arm 33 is installed at the position of the step 311 of the unwinding shaft 31, the rotating arm 33 comprises two swing arms 331, each swing arm 331 is connected with a spring pin 34, and a second long slot 332 is formed on the swing arm 331, the length direction of the second long slot 332 is arranged along the radial direction of the unwinding shaft 31.

[0045] The spring pin 34 comprises a first pin seat 341, a first pin 342 and a second spring 345, the first pin seat 341 is connected to the swing arm 331 through a bolt, a pin hole is arranged on the first pin seat 341, the axis of the pin hole is parallel to the axis of the unwinding shaft 31, the first pin 342 is inserted into the pin hole, so that the first pin 342 can move along the direction parallel to the axis of the unwinding shaft 31, when the winding disc 4 is sleeved on the unwinding shaft 31 and is fixed by the quick release nut assembly 32, the first pin 342 is inserted into the groove 41 on the end face of the winding disc 4.

[0046] The one end of the first pin 342 is formed with a radially outwardly extending annular flange 343, the other end of the first pin 342 is connected with a pin cap 344, the annular flange 343 and the pin cap 344 are distributed on both sides of the first pin seat 341, so that the first pin 342 cannot be separated from the first pin seat 341.

[0047] The second spring 345 is sleeved on the outside of the first pin 342, and the two ends of the second spring 345 abut against the first pin seat 341 and the annular flange 343, so that after the winding disc 4 contacts the first pin 342, the second spring 345 always applies a spring force to the first pin 342, and the first pin 342 cannot be separated from the groove 41.

[0048] Further, in order to realize the automatic centering of the winding disc 4 after being sleeved on the outside of the unwinding shaft 31, so that the winding disc 4 can be accurately aligned with the axis of the unwinding shaft 31 without additional operation, in combination with Figure 4 , the quick insertion mechanism 3 further comprises at least two conical sleeves 35 and a third spring 36.

[0049] The winding disc 4, the two conical sleeves 35 and the third spring 36 are all sleeved on the outside of the unwinding shaft 31, wherein the winding disc 4 has no direct contact with the unwinding shaft 31, the two conical sleeves 35 are connected to the unwinding shaft 31 and rotate synchronously with the unwinding shaft 31, one of the two conical sleeves 35 directly contacts the step 311 of the unwinding shaft 31, and the other conical sleeve 35 abuts against the quick release nut assembly 32 through the third spring 36, under the elastic force of the third spring 36, the two conical sleeves 35 are clamped at the two ends of the winding disc 4 respectively, and the conical surfaces of the conical sleeves 35 all contact the shaft hole of the winding disc 4, the two ends of the winding disc 4 are aligned with the axis of the unwinding shaft 31 through the guiding action of the two conical surfaces.

[0050] In summary, in combination Figure 4 , Figure 5 , Figure 6 , the quick insertion mechanism 3 comprises: a pay-off shaft 31, a quick release nut assembly 32, a sleeve 321, two sliders 324, a rotating arm 33, at least one spring pin 34, at least two tapered sleeves 35 and a third spring 36.

[0051] In order to quickly remove the pay-off reel 4, the outer tapered sleeve 35 is coaxially connected with the quick release nut assembly 32, and the tapered sleeve 35 has a cylindrical sleeve 351 that matches the circular hole 322 of the sleeve 321, and the end of the cylindrical sleeve 351 is connected with a sleeve cap 352, which allows the cylindrical sleeve 351 to move axially inside the circular hole 322 without being separated from the circular hole 322.

[0052] This design allows the operator to remove the quick release nut assembly 32, a tapered sleeve 35 and a third spring 36 at the same time, thereby achieving quick replacement of the pay-off reel 4, allowing the pay-off shaft 31 to stably output torque to the pay-off reel 4, and after the pay-off reel 4 is fitted to the outside of the pay-off shaft 31, it can be automatically centered to ultimately achieve the purpose of quickly replacing the roll-shaped busbar.

[0053] In combination Figure 1 , Figure 2 and Figure 3 , when the busbar has been used up, the worker needs to replace the roll-shaped busbar, and for the convenience of the worker's operation, a horizontal sliding table 11 is provided on the base 1 where the pay-off motor 2, the guide wheel 6 and the tensioning wheel 5 are installed, wherein the horizontal sliding table 11 is provided with a horizontal sliding block 12 that can slide along the axis direction of the pay-off motor 2, and the pay-off motor 2 is installed on the horizontal sliding block 12, so that the pay-off motor 2 and the pay-off reel 4 can move along their own axis direction to move from the working position to the replacement position.

[0054] Further, the side of the horizontal sliding block 12 towards the replacement position is provided with a handle 121 and a manual latch 122, the manual latch 122 has a second latch that can slide vertically, and the second latch corresponds to a second latch seat 13 on the base 1, the handle 121 facilitates the worker to pull out the horizontal sliding block 12 outward, so that the pay-off motor 2 and the pay-off reel 4 move to the replacement position, after replacing the roll-shaped busbar, the worker can push the horizontal sliding block 12 back to the original position, and then insert the second latch into the second latch seat 13, at this time, the pay-off motor 2 and the pay-off reel 4 are fixed in the working position.

[0055] In combination Figure 1 , Figure 2 and Figure 3The tensioning wheel 5 can move up and down to adjust and balance the unwinding tension and the discharge tension of the busbar, avoid the inclination, bending deformation and other situations caused by the unwinding of the roll-shaped busbar to the flat busbar, ensure the flatness and transmission stability of the busbar, improve the yield, ensure the solar cell welding quality and improve the production efficiency.

[0056] The tensioning wheel 5 is arranged as a gravity tensioning wheel 5, and the unwound busbar passes from the lower side of the tensioning wheel 5. With the change of the unwinding tension and the discharge tension of the busbar, the tensioning wheel 5 moves upward or downward, wherein the unwinding tension refers to the tension of the busbar transmitted upstream of the tensioning wheel 5 along the transmission direction of the busbar, that is, the tension of the busbar on the unwinding side; the discharge tension refers to the tension of the busbar transmitted downstream of the tensioning wheel 5 along the transmission direction of the busbar, that is, the tension of the busbar on the discharge side.

[0057] When the discharge tension increases / the unwinding tension decreases, the upward supporting force of the busbar on the gravity tensioning wheel 5 increases, and the gravity tensioning wheel 5 moves upward to reduce the tension of the busbar on the discharge side and balance the tension of the busbar on the unwinding side and the tension of the busbar on the discharge side.

[0058] Conversely, when the discharge tension decreases / the unwinding tension increases, the upward supporting force of the busbar on the gravity tensioning wheel 5 decreases, and the gravity tensioning wheel 5 moves downward to increase the tension of the busbar on the discharge side and balance the tension of the busbar on the unwinding side and the tension of the busbar on the discharge side.

[0059] The gravity tensioning wheel 5 moves up and down to adjust and balance the tension of the busbar on the unwinding side and the tension of the busbar on the discharge side, avoid the inclination, bending deformation and other situations caused by the unwinding of the roll-shaped busbar to the flat busbar, ensure the transmission stability and flatness of the busbar, improve the yield, ensure the solar cell welding quality and improve the production efficiency.

[0060] Further, a vertical sliding table 14 is arranged on the base 1 in the vertical direction, and the tensioning wheel 5 is connected to the vertical sliding table 14 through a vertical sliding block 15. The vertical sliding block 15 can slide up and down on the vertical sliding table 14, so that the vertical sliding block 15 can drive the tensioning wheel 5 to move up and down along the vertical sliding table 14. Under the supporting action of the tension of the busbar on the unwinding side and the tension of the busbar on the discharge side, the gravity tensioning wheel 5 can move up and down along the vertical sliding table 14 to adjust and balance the tension of the busbar on the unwinding side and the tension of the busbar on the discharge side.

[0061] In the embodiment, two guide wheels 6 are arranged, and the axes of the two guide wheels 6 are located in the same horizontal plane. The tensioning wheel 5 is located below the two guide wheels 6, and the busbar passes through the two guide wheels 6 in turn and then passes through the tensioning wheel 5 after being discharged from the unwinding disc 4.

[0062] Further, in combination with Figure 1The first guide groove 61 and the second guide groove 62 are arranged on the two guide wheels 6 respectively, and the uncoiled busbar sequentially passes through the first guide groove 61, the second guide groove 62 and the tensioning wheel 5 and then enters the slitting process. The width of the first guide groove 61 is greater than the width of the second guide groove 62, and the width of the second guide groove 62 is not less than the width of the busbar.

[0063] Therefore, in the process from uncoiling to tensioning of the busbar, the busbar is gradually straightened under the guidance of the first guide groove 61 and the second guide groove 62, so as to further avoid the busbar from being inclined and deformed.

[0064] Further, while the gravity tensioning wheel 5 moves up and down to balance the uncoiling side busbar tension and the discharging side busbar tension, the control of the uncoiling speed and the discharging speed of the busbar is also a problem to be solved. The uncoiling speed of the busbar refers to the conveying speed of the uncoiling side busbar, and the discharging speed of the busbar refers to the conveying speed of the discharging side busbar.

[0065] In actual production, in order to further prevent the busbar from being bent and ensure the flatness of the busbar, the uncoiling speed of the busbar is usually lower than the discharging speed. However, if the speed ratio of discharging to uncoiling is too large, the large length difference between the discharging side busbar and the uncoiling side busbar is easy to cause the discharging side busbar to be stretched, and the length of the slitted busbar is shorter than the predetermined length. If the speed ratio of discharging to uncoiling is too small, the discharging side busbar is easy to be bent, and the flatness of the discharging side busbar cannot be guaranteed.

[0066] Therefore, only when the speed ratio of discharging to uncoiling is kept within an optimal range, the busbar can be further effectively prevented from being bent and the flatness of the busbar can be ensured.

[0067] Therefore, in combination with the above problems, Figure 2 The busbar uncoiling module further comprises a first detection device 16 for detecting the position information of the tensioning wheel 5 to determine the relationship between the uncoiling speed and the discharging speed of the busbar. Without the need for manual detection to determine the speed ratio of uncoiling to discharging, the use is convenient, and the staff or the controller can adjust the uncoiling / discharging speed of the busbar according to the position information of the tensioning wheel 5 detected by the first detection device 16, thereby improving the straightening efficiency of the busbar.

[0068] Specifically, when the position of the tensioning wheel 5 is upward, it indicates that the speed ratio of discharging to uncoiling of the busbar is too large. When the position of the tensioning wheel 5 is downward, it indicates that the speed ratio of discharging to uncoiling of the busbar is too small.

[0069] The first detection device 16 detects the position information of the tensioning wheel 5 and obtains a first result and a second result, wherein the first result is that the first detection device 16 detects the tensioning wheel 5, and the position of the tensioning wheel 5 is biased upward / downward; the second result is that the first detection device 16 does not detect the tensioning wheel 5, and the position of the tensioning wheel 5 is biased downward / upward.

[0070] Furthermore, at least two first detection devices 16 are provided along the length direction of the vertical slide 14, and at least two first detection devices 16 are spaced apart in the vertical direction. When the first detection device 16 located on the upper side detects the position information of the tensioning wheel 5 and obtains the first result, it means that the position of the tensioning wheel 5 is too high, and the speed ratio of discharging and unwinding is too large; when the first detection device 16 located on the lower side detects the position information of the tensioning wheel 5 and obtains the first result, it means that the position of the tensioning wheel 5 is too low, and the speed ratio of discharging and unwinding is too small.

[0071] Preferably, the first detection device 16 is a micro-motion sensor, and two first detection devices 16 are arranged along the length direction of the vertical slide 14. The two first detection devices 16 correspond to the two ends of the vertical slide 14 respectively. Specifically, when the first detection device 16 corresponding to the upper end of the vertical slide 14 detects the position information of the tensioning wheel 5 and obtains the first result, it means that the position of the tensioning wheel 5 is too high, and the speed ratio of discharging and unwinding is too large; when the first detection device 16 corresponding to the lower end of the vertical slide 14 detects the position information of the tensioning wheel 5 and obtains the first result, it means that the position of the tensioning wheel 5 is too low, and the speed ratio of discharging and unwinding is too small; when the first detection device 16 corresponding to the middle of the vertical slide 14 detects the position information of the tensioning wheel 5 and obtains the first result, the speed ratio of discharging and unwinding is within the optimal range.

[0072] Furthermore, the busbar unwinding module also includes a controller, a first detection device 16, and an unwinding motor 2 electrically connected to the controller. The first detection device 16 is electrically connected to the controller's input terminal, and the unwinding motor 2 is electrically connected to the controller's output terminal. The first detection device 16 transmits the detected position information of the tensioning wheel 5 to the controller. The controller, based on the received position information, transmits a speed adjustment control instruction to the unwinding motor 2 to adjust the unwinding speed of the busbar, thereby adjusting the speed ratio of the busbar discharge and unwinding, so that the speed ratio of the busbar discharge and unwinding remains within an optimal range, effectively preventing busbar bending and ensuring the straightness of the busbar.

[0073] Specifically, when the controller receives the first result sent by the first detection device 16 corresponding to the upper end of the vertical slide 14, it sends a control instruction to increase the speed to the unwinding motor 2 to increase the unwinding speed of the bus bar and reduce the speed ratio of the bus bar outfeed and unwinding; when the controller receives the first result sent by the first detection device 16 corresponding to the lower end of the vertical slide 14, it sends a control instruction to reduce the speed to the unwinding motor 2 to reduce the unwinding speed of the bus bar and increase the speed ratio of the bus bar outfeed and unwinding; when the controller receives the first result sent by the first detection device 16 corresponding to the middle part of the vertical slide 14, the controller does not send a control instruction to adjust the speed to the unwinding motor 2 to maintain the existing speed ratio of the bus bar outfeed and unwinding.

[0074] Further, combined with Figure 3 At least one second detection device 17 is provided on one side of the vertical guide wheel 6 , and the second detection device 17 is used to detect the busbar that bypasses the guide wheel 6 to obtain the third result and the fourth result.

[0075] Among them, the third result is that the second detection device 17 detects the busbar, indicating that the busbar is normally transported from unwinding to discharging; the fourth result is that the second detection device 17 does not detect the busbar, indicating that the busbar is not discharged normally.

[0076] Preferably, the first detection device 16 is a metal proximity sensor.

[0077] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A busbar unwinding module, characterized in that, comprising: a base (1), an unwinding motor (2), an unwinding disc (4), a tension pulley (5) and at least one guide pulley (6), a roll-shaped busbar is installed on the unwinding disc (4), the unwinding disc (4) is driven to rotate by the unwinding motor (2) to unwind the roll-shaped busbar, and the unwound busbar is discharged after passing through the guide pulley (6) and the tension pulley (5) according to a preset path; wherein the unwinding motor (2) and the unwinding disc (4) are connected through a quick plug mechanism (3), the quick plug mechanism (3) comprises an unwinding shaft (31) and a quick release nut assembly (32), the unwinding shaft (31) is rotatably connected to the base (1), and the axis of the unwinding shaft (31) is arranged in a horizontal direction, one end of the unwinding shaft (31) is connected to the output shaft of the unwinding motor (2), the unwinding motor (2) drives the unwinding shaft (31) to rotate when it works, and the other end of the unwinding shaft (31) is suspended and faces the feeding position; the unwinding disc (4) is coaxially sleeved on the outside of the unwinding shaft (31), a step (311) is formed in the middle of the unwinding shaft (31), the unwinding disc (4) stops axial movement when it moves to contact the step (311), the quick release nut assembly (32) is installed on the other end of the unwinding shaft (31), the quick release nut assembly (32) is screwed into one end of the unwinding shaft (31), and when it contacts the unwinding disc (4), it prevents axial movement, at this time, the unwinding disc (4) is clamped in the middle by the step (311) and the quick release nut assembly (32). 2.The busbar unwinding module according to claim 1, characterized in that, the quick release nut assembly (32) comprises a sleeve (321) and two sliding blocks (324); the positional relationship between the sleeve (321), the sliding blocks (324) and the unwinding shaft (31) is that the sleeve (321) is provided with a through circular hole (322), the sliding blocks (324) are provided with through first long holes (325), the through directions of the first long holes (325) and the circular hole (322) are parallel to the axis of the unwinding shaft (31), the length direction of the first long holes (325) is arranged along the radial direction of the unwinding shaft (31), when the circular hole (322) and the first long holes (325) are sleeved on the outside of the unwinding shaft (31), the circular hole (322) allows the sleeve (321) to move along the axial direction of the unwinding shaft (31), and the first long holes (325) allow the sliding blocks (324) to move along the axial and radial directions of the unwinding shaft (31). 3.The busbar unwinding module according to claim 2, characterized in that, The sleeve (321) is formed with a sliding groove (323) extending along the radial direction of the unwinding shaft (31), two sliding blocks (324) are symmetrically arranged around the axis of the unwinding shaft (31), and each of the first long holes (325) is provided with a half-threaded part (326) at one end.

4. The bus bar unwinding module according to claim 3, characterized in that, The two sliding blocks (324) are connected with guide columns (327), and the guide columns (327) are inserted into the guide holes (328) of the other sliding blocks (324), so that the two sliding blocks (324) can be inserted into each other, and the guide columns (327) between the two sliding blocks (324) are provided with first springs for driving the two sliding blocks (324) away from each other, so that the half-threaded parts (326) of the two sliding blocks (324) always form a threaded hole without external force, thereby preventing the unwinding reel (4) from moving axially by the threaded connection of the threaded hole and the unwinding shaft (31). When the two sliding blocks (324) are subjected to external force for approaching each other, the half-threaded parts (326) are separated from the unwinding shaft (31), and at this time, the round hole (322) and the first long hole (325) allow the quick-release nut assembly (32) to move along the axial direction of the unwinding shaft (31).

5. The bus bar unwinding module according to any one of claims 2-4, characterized in that, The quick insertion mechanism (3) further comprises at least two tapered sleeves (35) and a third spring (36). The unwinding reel (4), the two tapered sleeves (35) and the third spring (36) are all sleeved outside the unwinding shaft (31), wherein the unwinding reel (4) does not directly contact the unwinding shaft (31), the two tapered sleeves (35) are connected to the unwinding shaft (31) and rotate synchronously with the unwinding shaft (31), one of the tapered sleeves (35) directly contacts the step (311) of the unwinding shaft (31), and the other tapered sleeve (35) abuts against the quick-release nut assembly (32) through the third spring (36), under the elastic force of the third spring (36), the two tapered sleeves (35) are clamped at the two ends of the unwinding reel (4) respectively, and the tapered surfaces of the tapered sleeves (35) contact the shaft holes of the unwinding reel (4), and the two ends of the unwinding reel (4) are aligned with the axis of the unwinding shaft (31) through the guiding action of the two tapered surfaces.

6. The bus bar unwinding module according to claim 5, characterized in that, An outer one of the conical sleeves (35) is coaxially connected with the quick release nut assembly (32), the conical sleeve (35) has a cylindrical sleeve (351) which is fitted with the round hole (322) of the sleeve (321), the end of the cylindrical sleeve (351) is connected with a sleeve cap (352), the sleeve cap (352) enables the cylindrical sleeve (351) to move axially inside the round hole (322) and cannot be separated from the round hole (322).

7. The bus bar unwinding module according to claim 1, wherein, The quick insertion mechanism (3) further comprises a rotating arm (33) and at least one spring pin (34); The rotating arm (33) is connected to the unwinding shaft (31) by bolts and rotates synchronously with the unwinding shaft (31), the rotating arm (33) extends along the radial direction of the unwinding shaft (31), the spring pin (34) is connected to the rotating arm (33) by bolts, a plurality of grooves (41) are formed on the side of the spool (4) facing the spring pin (34), when the spring pin (34) is inserted into one of the grooves (41), the rotating arm (33) can transmit the torque of the unwinding shaft (31) to the spool (4) through the spring pin (34), so that the spool (4) and the unwinding shaft (31) rotate synchronously.

8. The bus bar unwinding module according to claim 7, wherein, The rotating arm (33) is installed at the stepped position (311) of the unwinding shaft (31), the rotating arm (33) comprises two swing arms (331), each swing arm (331) is connected to one spring pin (34), a second long slot (332) is formed on the swing arm (331), the length direction of the second long slot (332) is arranged along the radial direction of the unwinding shaft (31).

9. The bus bar unwinding module according to claim 8, wherein, The spring pin (34) comprises a first pin seat (341), a first pin (342) and a second spring (345), the first pin seat (341) is connected to the swing arm (331) by bolts, a pin hole is arranged on the first pin seat (341), the axis of the pin hole is parallel to the axis of the unwinding shaft (31), the first pin (342) is inserted into the pin hole, so that the first pin (342) can move along the direction parallel to the axis of the unwinding shaft (31), when the spool (4) is sleeved on the unwinding shaft (31) and the spool (4) is fixed by the quick release nut assembly (32), the first pin (342) is inserted into the groove (41) on the end face of the spool (4).

10. The bus bar unwinding module according to claim 9, wherein, The first plug pin (342) is formed with a radially outward extending annular flange (343) at one end of the pay-off reel (4), the other end of the first plug pin (342) is connected with a plug pin cap (344), the annular flange (343) and the plug pin cap (344) are distributed on both sides of the first plug pin seat (341), so that the first plug pin (342) cannot be separated from the first plug pin seat (341); The second spring (345) is sleeved on the outside of the first plug pin (342), and the two ends of the second spring (345) abut against the first plug pin seat (341) and the annular flange (343), so that after the pay-off reel (4) contacts the first plug pin (342), the second spring (345) always applies elastic force to the first plug pin (342), and the first plug pin (342) cannot be separated from the groove (41).

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