Adhesive tape slitting and spacing module

Abstract

The utility model provides an adhesive tape slitting and spacing module which comprises an adhesive tape supplying and slitting assembly used for slitting an adhesive tape wound on an adhesive tape disc into M adhesive tapes with preset widths and outputting the slit adhesive tapes in the first direction; the adhesive tape distance separation assembly is arranged at the adhesive tape output end of the adhesive tape supplying and slitting assembly and comprises a flow dividing roller set and a distance separation roller set which are sequentially arranged in the output direction of all the adhesive tapes, the flow dividing roller set is used for dividing M adhesive tapes into N groups, and the distance separation roller set is used for conducting distance separation on all the adhesive tapes in all the groups formed through flow dividing. According to the utility model, the M adhesive tapes are divided into N groups through the dividing roller group, and then the adhesive tapes in each group formed by dividing are subjected to distance separation through the distance separation roller group, so that the span of each adhesive tape in the distance separation process can be obviously reduced, the probability of dislocation and deviation caused by overlarge span of part of the adhesive tapes in the distance separation process is effectively reduced, and the service life of the adhesive tapes is prolonged. And the reliability and the stability of the positions of the spaced rubber strips are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the design of photovoltaic module production equipment, in particular to a rubber strip cutting and spacing module. Background Art

[0002] In the process of stringing photovoltaic cells, a battery string is formed by connecting multiple half-cells in series through welding tapes. To ensure the continuity of the process, a corresponding welding tape cutting mechanism is prepared on the production line to continuously supply welding tapes to the production line. When using rubber strips to pre-stick the welding tapes, the corresponding rubber strips also need to be cut and transported to the positions of the welding tapes on the battery cells.

[0003] The traditional method of applying rubber strips mainly supplies rubber strips to the feeding end by separating multiple tape reels at a certain distance. However, this method is rather cumbersome for installing tape rolls, and after the rubber strips are used up, they need to be disassembled and replaced one by one. When there are up to more than twenty welding tapes on each battery cell, more than twenty tape reels are required, which delays the production process. In related technologies, to overcome the above deficiencies, a method of cutting a wide tape is proposed to prepare multiple tapes, and then further spacing is carried out to meet the one-to-one correspondence between each tape and each welding tape. However, the current spacing is directly carried out based on the multiple tapes formed after cutting. In this way of directly spacing after cutting, the span of some rubber strips is relatively large, and these rubber strips with large spans are extremely prone to problems such as dislocation and deviation. Summary of the Utility Model

[0004] The rubber strip cutting and spacing module designed by the utility model can at least partially solve the above problems.

[0005] The purpose of the utility model is to provide a rubber strip cutting and spacing module, including:

[0006] A tape feeding and cutting component, which is used to cut the tape wound on a tape reel into M rubber strips with a preset width and output each cut rubber strip along a first direction;

[0007] A rubber strip spacing component, which is arranged at the rubber strip output end of the tape feeding and cutting component, and includes a flow dividing roller group and a spacing roller group arranged in sequence along the output direction of each rubber strip. Among them, the flow dividing roller group is used to divide the M rubber strips into N groups, and the spacing roller group is used to space each rubber strip in each group formed by flow division.

[0008] In some embodiments, the flow splitting roller group includes N flow splitting rollers, each of the flow splitting rollers is provided with a flow splitting wheel, and each of the flow splitting wheels is provided with d first threading annular grooves arranged along its axial direction. The spacing roller group includes N first spacing rollers, each of the first spacing rollers is provided with a first spacing wheel, and each of the first spacing wheels is provided with d second threading annular grooves arranged along its axial direction. M = dN, and the positions of the flow splitting rollers correspond one-to-one vertically with the positions of the first spacing rollers.

[0009] In some embodiments, the rotation center axis of the flow splitting wheel is orthogonal to the rotation center axis of the first spacing wheel, and the rotation center axis of the flow splitting wheel is parallel to the first direction.

[0010] In some embodiments, d is an odd number. When projected onto a horizontal plane, among the flow splitting rollers and the first spacing rollers corresponding to each other in the vertical position, the center plane of the first threading annular groove in the middle along the axial direction of the flow splitting wheel is tangent to the bottom wall of the second threading annular groove in the middle along the axial direction of the first spacing wheel, and the center plane of the second threading annular groove in the middle along the axial direction of the first spacing wheel is tangent to the bottom wall of the first threading annular groove in the middle along the axial direction of the flow splitting wheel.

[0011] In some embodiments, the rubber strip spacing assembly further includes a second spacing roller downstream of each of the first spacing rollers. The second spacing roller is provided with N second spacing wheels, and each of the second spacing wheels is arranged at intervals along the axial direction of the second spacing roller, and each of the second spacing wheels is arranged corresponding to each of the first spacing wheels one-to-one.

[0012] In some embodiments, a flow guiding comb and a third spacing roller are sequentially arranged along the output direction of the rubber strip at the rubber strip output end of the second spacing roller.

[0013] In some embodiments, the tape supply and slitting assembly further includes a tape slitting device and an auxiliary tape pulling device. The tape slitting device is used to slit the wide tape on the tape reel into M rubber strips with a preset width, and the auxiliary tape pulling device is used to drive each of the rubber strips to output along the first direction.

[0014] In some embodiments, the auxiliary tape pulling device includes an adsorption roller and a rotary drive mechanism for driving the adsorption roller to rotate. The rotation axis of the adsorption roller is parallel to the rotation axis of the tape reel, and first negative pressure adsorption holes corresponding to the positions of the rubber strips are formed on the outer circumferential wall surface of the adsorption roller.

[0015] In some embodiments, the tape feeding and slitting assembly further includes a first wrap angle limiting tube and a second wrap angle limiting tube. Among them, the first wrap angle limiting tube is located on the tape input side of the adsorption roller, and the second wrap angle limiting tube is located on the tape output side of the adsorption roller. The vertical plane passing through the rotation center of the adsorption roller is the first reference plane, and the horizontal plane is the second reference plane. The center of the tube body of the first wrap angle limiting tube is on the side of the first reference plane close to the tape output side, and the center of the tube body of the second wrap angle limiting tube is in the lower area of the second reference plane.

[0016] In some embodiments, the tape slitting and spacing module further includes a tape pulling and cutting assembly, which is arranged at the tape output end of the tape spacing assembly and is used to pull each tape to be conveyed along the second direction and cut the input tapes with a preset width into tape segments with a preset length. The second direction is perpendicular to the first direction.

[0017] The tape slitting and spacing module of the present utility model:

[0018] First, the M tapes formed by slitting the tape feeding and slitting assembly are shunted into N groups by the shunt roller assembly, and then the spacing roller assembly spaces the tapes in each group formed by shunting. This can significantly reduce the span of each tape during the spacing process, and further effectively reduce the probability of misalignment and deviation caused by the excessive span of some tapes during the spacing process, improving the reliable and stable position of each tape after spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective structural schematic diagram of the tape slitting and spacing module of the embodiment of the present utility model from a perspective;

[0020] Figure 2 is Figure 1 the front view of;

[0021] Figure 3 is Figure 2 the sectional view taken along A-A in;

[0022] Figure 4 is Figure 2 the top view of;

[0023] Figure 5 is Figure 4 the partial enlarged view at A in;

[0024] Figure 6 is Figure 2 the sectional view taken along B-B in.

[0025] In the figure:

[0026] 11. Tape reel; 12. Tape slitting device; 13. Auxiliary tape pulling device; 131. Adsorption roller; 1311. First negative pressure adsorption hole; 132. Rotary drive mechanism; 141. First wrap angle limiting tube; 142. Second wrap angle limiting tube; 21. Diverting roller; 211. Diverting wheel; 212. First threading ring groove; 22. First spacing roller; 221. First spacing wheel; 222. Second threading ring groove; 23. Second spacing roller; 231. Second spacing wheel; 24. Flow guide comb; 25. Third spacing roller; 31. Polygonal rotary tape sticking mechanism; 32. Cutting mechanism; 41. Tensioning roller; 42. Transition tube; 100. Bracket. Detailed implementation manners

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. In the figures, the thicknesses of regions and layers are exaggerated for clarity. Like reference numerals in the figures denote like or similar structures and thus their detailed description will be omitted.

[0028] The features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or may be implemented using other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present disclosure.

[0029] The following described embodiments are the tape slitting and spacing module of the present disclosure. This example is only a part of the embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0030] Please refer in combination with Figures 1 to 6 , according to the embodiments of the present disclosure, there is provided a tape slitting and spacing module, including:

[0031] A tape feeding and slitting assembly for slitting the tape wound on the tape reel 11 into M strips of a preset width and outputting the slit strips along a first direction;

[0032] The rubber strip spacing component is arranged at the rubber strip output end of the tape supply and slitting component, and includes a flow splitting roller group and a spacing roller group arranged in sequence along the output direction of each rubber strip. Among them, the flow splitting roller group is used to split M rubber strips into N groups (it can be understood that N < M), and the spacing roller group is used to space the rubber strips in each group formed by the splitting. In a specific embodiment, M = 20 and N = 4, that is, the 20 rubber strips formed by slitting are first split into 4 groups of rubber strip groups, and then the 5 rubber strips in each group are spaced.

[0033] In this technical solution, after the M rubber strips formed by the tape supply and slitting component are first split into N groups by the flow splitting roller group, the spacing roller group spaces each rubber strip in each group formed by the splitting, which can significantly reduce the span of each rubber strip during the spacing process, and further effectively reduce the probability of misalignment and deviation caused by the excessive span of some rubber strips during the spacing process, and improve the position reliability and stability of each rubber strip after spacing.

[0034] In a specific embodiment, the flow splitting roller group includes N flow splitting rollers 21, each flow splitting roller 21 is provided with a flow splitting wheel 211, and each flow splitting wheel 211 is provided with d first threading ring grooves 212 arranged along its axial direction. The spacing roller group includes N first spacing rollers 22, each first spacing roller 22 is provided with a first spacing wheel 221, and each first spacing wheel 221 is provided with d second threading ring grooves 222 arranged along its axial direction. M = dN, and the positions of each flow splitting roller 21 and the positions of each first spacing roller 22 correspond one by one up and down. When M = 20 and N = 4, d = 5.

[0035] In some embodiments, the rotation center axis of the flow splitting wheel 211 is orthogonal to the rotation center axis of the first spacing wheel 221, and the rotation center axis of the flow splitting wheel 211 is parallel to the first direction, that is, the rotation center axis of the first spacing wheel 221 is vertically arranged with respect to the first direction, so that Figure 2 Taking the shown orientation as a reference, the aforementioned first direction is the left - right direction of the shown orientation, and the rotation center axis of the first spacing wheel 221 is parallel to the second direction. Taking Figure 2 the shown orientation as a reference, the aforementioned second direction is the front - back direction of the shown orientation.

[0036] In this technical solution, since the rotation center axis of the aforementioned flow splitting wheel 211 is orthogonal to the rotation center axis of the first spacing wheel 221, the conveying direction of the rubber strip is adjusted from the first direction to the second direction during the conveying process of each rubber strip, thereby significantly reducing the length of the rubber strip slitting and spacing module, and further making the structure of the entire mold compact, effectively reducing the total occupied length of the module, especially suitable for the scenario where the installation site length is insufficient.

[0037] In some embodiments, d is an odd number, such asFigure 5 In a specific embodiment shown, d = 5. When projected onto a horizontal plane, among the shunt rollers 21 and the first distance separating rollers 22 corresponding to the upper and lower positions, the central plane a of the first threading ring groove 212 centered along the axial direction of the shunt wheel 211 is tangent to the bottom wall of the second threading ring groove 222 centered along the axial direction of the first distance separating wheel 221, and the central plane b of the second threading ring groove 222 centered along the axial direction of the first distance separating wheel 221 is tangent to the bottom wall of the first threading ring groove 212 centered along the axial direction of the shunt wheel 211.

[0038] In this technical solution, by corresponding the central positions of each shunt wheel 211 with the first distance separating wheels 221 corresponding to them in the upper and lower positions, the threading span of the rubber strips at both ends of each shunt machine and distance separating wheel can be further reduced, avoiding too large a threading amplitude, and thus preventing the deviation phenomenon caused by too large an inclination of the rubber strips.

[0039] In some embodiments, specifically referring to Figure 5 as shown, the cross-sections of the bottom walls of each of the first threading ring grooves 212 and each of the second threading ring grooves 222 are arcs convex in the middle, that is, the bottom walls of each threading ring groove are convex arc structures with the middle being high and both sides being low, so that each rubber strip can be aligned towards the middle position during the traction process. Specifically, in this design, since the tightening force in the middle of the rubber strip is greater than that on both sides, it is easy for the rubber strip to achieve automatic correction when there is a tendency to deviate during the traction of the rubber strip.

[0040] In a preferred embodiment, the heights of two adjacent first distance separating rollers 22 along the first direction are different. By arranging each first distance separating roller 22 with a height difference, the rubber strips of different paths can be distributed in a staggered manner when the rubber strips are being tractioned, which can prevent the mutual interference of adjacent paths of rubber strips.

[0041] In some embodiments, the rubber strip distance changing assembly further includes a second distance separating roller 23, which is located downstream of each of the first distance separating rollers 22. The second distance separating roller 23 has N second distance separating wheels 231. Each of the second distance separating wheels 231 is arranged at intervals along the axial direction of the second distance separating roller 23, and each of the second distance separating wheels 231 is arranged in one-to-one correspondence with each of the first distance separating wheels 221. Through the second distance separating roller 23, the distances between the rubber strips can be further separated into a target distance.

[0042] Specifically referring to Figure 1 as shown, in some embodiments, along the output direction of the rubber strips at the rubber strip output end of the second distance separating roller 23, a flow guiding comb 24 and a third distance separating roller 25 are sequentially provided. Among them, the flow guiding comb 24 has a plurality of flow guiding grooves with uniform spacing. Each rubber strip passes through each flow guiding groove one by one, thereby ensuring that the distances between the rubber strips are uniform and preventing adjacent rubber strips from sticking or overlapping together.

[0043] In some embodiments, the tape supply and slitting assembly further includes a tape slitting device 12 (specifically, a slitting pair of rollers in the prior art can be used) and an auxiliary tape pulling device 13. The tape slitting device 12 is used to slit the wide tape on the tape reel 11 into M strips of a preset width, and the auxiliary tape pulling device 13 is used to drive each strip to be output along the first direction.

[0044] In some embodiments, the auxiliary tape pulling device 13 includes an adsorption roller 131 and a rotary drive mechanism 132 for driving the adsorption roller 131 to rotate. The rotation axis of the adsorption roller 131 is parallel to the rotation axis of the tape reel 11. First negative pressure adsorption holes 1311 corresponding to the positions of the respective strips are formed on the outer circumferential wall of the adsorption roller 131. The auxiliary tape pulling device 13 is specifically arranged on the strip output side of the tape slitting device 12, and each of the first negative pressure adsorption holes 1311 thereon can effectively adsorb the strip under the action of a negative pressure source. Thus, under the drive of the rotary drive mechanism 132, the rotating adsorption roller 131 can apply a traction force to the strip to achieve effective traction of the strip. Specifically, N annular grooves are formed on the outer circumferential wall of the adsorption roller 131, and each of the first negative pressure adsorption holes 1311 is formed in each annular groove to respectively and correspondingly adsorb each strip in each annular groove.

[0045] Specifically refer to Figure 2 As shown, in some embodiments, the tape supply and slitting assembly further includes a first wrap angle limiting tube 141 and a second wrap angle limiting tube 142. Among them, the first wrap angle limiting tube 141 is on the strip input side of the adsorption roller 131, and the second wrap angle limiting tube 142 is on the strip output side of the adsorption roller 131. The vertical plane passing through the rotation center of the adsorption roller 131 is the first reference plane, and the horizontal plane is the second reference plane. The center of the tube body of the first wrap angle limiting tube 141 is on the side of the first reference plane close to the strip output side, and the center of the tube body of the second wrap angle limiting tube 142 is in the lower area of the second reference plane.

[0046] In this technical solution, by defining the relative position relationship between the first wrap angle limiting tube 141 and the second wrap angle limiting tube 142 and the adsorption roller 131, the contact area between the strip and the adsorption roller 131 can be significantly increased. When the air is extracted by the adsorption holes, a large-area negative pressure can be formed in the annular groove to adsorb the strip laid on its surface over a large area, ensuring reliable traction of the strip.

[0047] In order to ensure the stable tension of the tape and the strip during the traction process to ensure its stable transmission, a tension roller 41 is also arranged at a corresponding position. And in order to ensure a more reasonable conveying route of the tape or the strip, a transition tube 42 is also arranged at a corresponding position.

[0048] In some embodiments, the tape slitting and spacing module further includes a tape pulling and cutting assembly (not labeled in the figure), which is disposed at the tape output end of the tape spacing assembly and is used to pull each tape to be conveyed along the second direction, and cut the input tapes with a preset width into tape segments with a preset length. The tape pulling and cutting assembly can also simultaneously pull the traction tape at the end of the tape, and paste the cut tape end with a preset length onto the corresponding solder tape.

[0049] In some embodiments, the tape pulling and cutting assembly includes a polygonal rotating tape sticking mechanism 31 and a cutting mechanism 32 disposed adjacent to the polygonal rotating tape sticking structure 31. The cutting mechanism 32 has a cutter, and the cutting mechanism 32 further has a heating assembly capable of heating the cutter. The aforementioned heating assembly can be, for example, an electric heating resistance wire. By heating the cutter through the heating assembly, smooth cutting can be achieved without applying a large cutting force to the tape during cutting, thereby preventing the tape from being misaligned due to excessive cutting force and ensuring the position stability of the tape on the polygonal rotating tape sticking structure 31.

[0050] In a specific embodiment, the aforementioned tape feeding and slitting assembly, tape spacing assembly, and tape pulling and cutting assembly are assembled on a bracket 100. Of course, in some other feasible embodiments, the aforementioned bracket 100 can be jointly composed of multiple independent frames.

[0051] The following describes the tape threading method of the tape slitting and spacing module of the present invention:

[0052] Do not cut the end of the tape first. Thread it directly to the front end of the shunt roller group according to the threading route; make the slitting counter-rollers approach each other, and manually pull to cut it into multiple tapes; manually cut the front end of the tape, and thread each cut tape to each position at the position of the spacing roller group; after threading each tape onto the polygonal rotating tape sticking mechanism, drive and pull it by the polygonal rotating tape sticking mechanism, and the polygonal rotating tape sticking mechanism performs actions such as cutting and bonding the tape film segment.

[0053] The tape slitting and spacing module in the present invention can slit a whole roll of tape into several tapes and supply them to the battery cell stringing supply position, which can improve the continuity of the stringing operation process. The roll changing method and the threading method are more convenient than the traditional methods, which is beneficial to improving production efficiency.

[0054] Those skilled in the art can easily understand that, on the premise of no conflict, the above advantageous methods can be freely combined and superimposed.

[0055] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rubber strip slitting and spacing module, characterized in that, Including: A tape supply and slitting assembly for slitting the tape wound on a tape reel (11) into M strips of a preset width and outputting the slit strips along a first direction; A strip spacing assembly arranged at the strip output end of the tape supply and slitting assembly, including a flow dividing roller group and a spacing roller group arranged in sequence along the output direction of each strip. Among them, the flow dividing roller group is used to divide the M strips into N groups, and the spacing roller group is used to space the strips in each group formed by the flow division.

2. The rubber strip slitting and spacing module according to claim 1, wherein The flow dividing roller group includes N flow dividing rollers (21). Each flow dividing roller (21) is provided with a flow dividing wheel (211). Each flow dividing wheel (211) is provided with d first threading ring grooves (212) arranged along its axial direction. The spacing roller group includes N first spacing rollers (22). Each first spacing roller (22) is provided with a first spacing wheel (221). Each first spacing wheel (221) is provided with d second threading ring grooves (222) arranged along its axial direction. M = dN, and the positions of the flow dividing rollers (21) and the first spacing rollers (22) are in one-to-one correspondence in the up-and-down position.

3. The rubber strip slitting and spacing module according to claim 2, characterized in that, The rotation central axis of the flow dividing wheel (211) is orthogonal to the rotation central axis of the first spacing wheel (221), and the rotation central axis of the flow dividing wheel (211) is parallel to the first direction.

4. The rubber strip slitting and spacing module according to claim 3, characterized in that, d is an odd number. Projected on a horizontal plane, among the flow dividing roller (21) and the first spacing roller (22) corresponding in the up-and-down position, the central plane of the first threading ring groove (212) centered along the axial direction of the flow dividing wheel (211) is tangent to the bottom wall of the second threading ring groove (222) centered along the axial direction of the first spacing wheel (221), and the central plane of the second threading ring groove (222) centered along the axial direction of the first spacing wheel (221) is tangent to the bottom wall of the first threading ring groove (212) centered along the axial direction of the flow dividing wheel (211).

5. The strip slitting and spacing module according to claim 4, wherein The strip spacing assembly further includes a second spacing roller (23), which is downstream of each first spacing roller (22). The second spacing roller (23) has N second spacing wheels (231). Each second spacing wheel (231) is arranged at intervals along the axial direction of the second spacing roller (23), and each second spacing wheel (231) is arranged in one-to-one correspondence with each first spacing wheel (221).

6. The rubber strip slitting and spacing module according to claim 5, wherein A flow guiding comb (24) and a third spacing roller (25) are further arranged in sequence along the output direction of the strips at the strip output end of the second spacing roller (23).

7. The strip slitting and spacing module according to claim 1, wherein, The tape supply and slitting assembly further includes a tape slitting device (12) and an auxiliary tape pulling device (13). The tape slitting device (12) is used to slit the wide tape on the tape reel (11) into M strips of a preset width, and the auxiliary tape pulling device (13) is used to drive each strip to be output along the first direction.

8. The strip slitting and spacing module according to claim 7, characterized in that The auxiliary tape pulling device (13) includes an adsorption roller (131) and a rotary drive mechanism (132) for driving the adsorption roller (131) to rotate. The rotation axis of the adsorption roller (131) is parallel to the rotation axis of the tape reel (11). First negative pressure adsorption holes (1311) corresponding to the positions of the respective rubber strips are formed on the outer circumferential wall surface of the adsorption roller (131).

9. The rubber strip slitting and spacing module according to claim 8, characterized in that, The tape supply and slitting assembly further includes a first wrap angle limiting tube (141) and a second wrap angle limiting tube (142). Among them, the first wrap angle limiting tube (141) is on the rubber strip input side of the adsorption roller (131), and the second wrap angle limiting tube (142) is on the rubber strip output side of the adsorption roller (131). The vertical plane passing through the rotation center of the adsorption roller (131) is the first reference plane, and the horizontal plane is the second reference plane. The center of the tube body of the first wrap angle limiting tube (141) is on the side of the first reference plane close to the rubber strip output side, and the center of the tube body of the second wrap angle limiting tube (142) is in the lower area of the second reference plane.

10. The rubber strip slitting and spacing module according to claim 1, wherein, It further includes a tape pulling and cutting assembly, which is arranged at the rubber strip output end of the rubber strip spacing assembly, and is used to pull each rubber strip to be conveyed in the second direction and cut the input rubber strips with a preset width into rubber strip segments with a preset length. The second direction is perpendicular to the first direction.

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