A kind of welding strip floating tensioning mechanism and series machine
By designing a floating tensioning mechanism and utilizing a combination of floating wheels and buffer elastic components, the problem of the welding strip jumping or falling off the guide wheel is solved, achieving stable and high-speed traction of the welding strip, which is suitable for the production of solar cells with smaller grid pitch.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GUANGYUAN INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-09
AI Technical Summary
The problem of the welding strip jumping or falling off the guide wheel causes the welding strip traction speed to be unstable, especially at high speeds, it is easy for it to fall off the gripper or break.
A floating tensioning mechanism is adopted, including a support assembly and first and second floating tensioning assemblies. It utilizes a combination of a floating wheel structure and a buffer elastic element to sense the tension force of the welding strip through a sensor and to counteract the inertia of the floating wheel through the buffer elastic element, thereby maintaining stable tension of the welding strip.
It improves the stability of the welding strip during high-speed traction, prevents jumping and falling, meets the requirements of smaller grid pitch solar cells, and enhances the stability and reliability of welding strip traction.
Smart Images
Figure CN224336816U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding strip traction technology, and more specifically, to a welding strip floating tensioning mechanism and a series connection machine. Background Technology
[0002] As an essential piece of equipment in photovoltaic cell string production, the main function of the series connection machine is to connect multiple cells together in series using welding ribbons to form a cell string. During the series connection process, the welding ribbon is first pulled straight from the welding ribbon reel by a welding ribbon traction mechanism. Then, the welding ribbon is cut to the required length and laid flat on the grid lines of adjacent cells. Finally, the cells with the welding ribbons placed on them are transported to the rear end via a conveyor line for series connection.
[0003] In existing technologies, to improve the production capacity of tandem welding machines, the welding strip traction speed is usually relatively fast. However, the unwinding speed of the welding strip is limited by the continuously decreasing diameter of the welding strip roll, making it difficult to keep the unwinding speed consistent with the welding strip traction speed. The welding strip is unwound from the welding strip reel through the guide wheel and passes under the welding strip structure onto the welding strip clamp. When the welding strip traction speed is too fast, it is easy for the welding strip to jump up and down, and sometimes it may fall out of the guide wheel groove, resulting in the welding strip falling out of the clamp or breaking during high-speed traction. Therefore, a welding strip floating tensioning mechanism and tandem welding machine are provided to solve the above problems. Utility Model Content
[0004] One of the purposes of this utility model is to provide a welding strip floating tensioning mechanism and a series machine, so as to solve the problem that the welding strip jumps or falls off the guide wheel due to the excessive speed of the existing welding strip traction.
[0005] This utility model relates to a floating tensioning mechanism for welding strips and a series connection machine, which can be achieved through the following technical solutions:
[0006] This utility model discloses a welding strip floating tensioning mechanism applied in the welding strip traction process of a series machine, including a support assembly; a plurality of first floating tensioning assemblies disposed on the support assembly; and a plurality of second floating tensioning assemblies disposed on the support assembly and spaced apart from the plurality of first floating tensioning assemblies, wherein the second floating tensioning assemblies are disposed in a way that avoids gaps with adjacent first floating tensioning assemblies.
[0007] The first floating tensioning assembly and the second floating tensioning assembly each include a second support plate, which is fixedly mounted on the support assembly; at least one guide rod is longitudinally fixedly mounted on the second support plate; a floating wheel structure is slidably mounted on at least one of the guide rods; a position sensor is fixedly mounted on the second support plate, which can perform sensing operation with the floating wheel structure; and a buffer elastic element is fixedly mounted on the upper end of the guide rod, which can contact and connect with the floating wheel structure.
[0008] In one embodiment, the floating wheel structure includes a sliding block slidably disposed on the guide rod and capable of contacting and connecting with the buffer elastic element; a floating wheel body rotatably disposed on the sliding block; at least one linear bearing fixedly disposed in the sliding block and slidably connected with the guide rod; and a sensing plate fixedly disposed on the sliding block and capable of sensing with the position sensor.
[0009] In one embodiment, the sliding block is provided with two second through holes, and the two linear bearings are respectively fixedly installed in the corresponding second through holes.
[0010] In one embodiment, the support assembly includes a fixing plate; a first support plate and a grid mounting plate are sequentially fixed above the fixing plate.
[0011] In one embodiment, a plurality of reinforcing plates are fixedly disposed longitudinally on the side of the first support plate, and the plurality of reinforcing plates are fixedly disposed on the fixed plate.
[0012] In one embodiment, a plurality of connecting rods are fixedly arranged laterally on the first support plate, and a plurality of first floating tensioning components and a plurality of second floating tensioning components are respectively disposed through the connecting rods.
[0013] In one embodiment, at least one buffer post is provided on the second support plate, and at least one of the buffer posts is located directly below the floating wheel structure.
[0014] In one embodiment, the second support plate is provided with a plurality of fixing holes, and the opposite ends of the second support plate are respectively fixedly mounted on the fixing plate and the grid mounting plate through the corresponding fixing holes.
[0015] In one embodiment, the buffer elastic element is a spring.
[0016] This utility model provides a series machine including a welding strip feeding device, which includes the welding strip floating tensioning mechanism described in any of the above-mentioned claims;
[0017] It also includes a cell coating device, a cell conveying device, a cell handling device, a welding strip laying device, and a cell welding strip series connection device;
[0018] The solar cell coating device applies adhesive to the solar cells; the solar cell conveying device transports the coated solar cells; the solar cell handling device transports the coated solar cells from the output end of the solar cell conveying device to the input end of the solar cell welding strip series connection device; the welding strip feeding device places welding strip rolls to provide the welding strips required for solar cell string welding; and the welding strip laying device lays welding strips of a predetermined length onto the coated solar cells at the input end of the solar cell welding strip series connection device.
[0019] Compared with the prior art, the beneficial effects of the present invention, a floating tensioning mechanism for welding strips and a series connection machine, are as follows:
[0020] This utility model discloses a floating tensioning mechanism for welding strips and a series connection machine. Under the action of the self-gravity of the sliding block and the floating wheel body, the sliding block slides down the guide rod to the position of the positioning sensor. The sensing plate set on the sliding block senses the positioning sensor, thereby tensioning the welding strip set on the floating wheel body. When the sliding block moves upward on the guide rod and contacts the buffer elastic element, the buffer elastic element buffers the upward movement of the sliding block, thereby counteracting the inertia of the floating wheel structure. This ensures that the welding strip set on the floating wheel structure maintains a certain tension, greatly improving the stable output of the welding strip during high-speed traction. It effectively solves the problem of the welding strip jumping or falling off the guide wheel due to excessively high traction speed in existing welding strips. At the same time, the non-empty arrangement of the first and second floating tensioning components makes the structure of the floating tensioning mechanism for welding strips more compact, which can meet the requirements of smaller grid pitch solar cells. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a three-dimensional structural diagram of a welding strip floating tensioning mechanism according to the present invention, including a first floating tensioning component;
[0023] Figure 2 yes Figure 1 The schematic diagram of the three-dimensional structure of the first floating tensioning component shown includes a floating wheel structure;
[0024] Figure 3 yes Figure 2 The diagram shows a three-dimensional representation of the floating wheel structure.
[0025] The diagram indicates the following: 10, floating tensioning mechanism for welding strips; 11, support assembly; 111, fixing plate; 112, first support plate; 1121, reinforcing plate; 1122, connecting rod; 113, grid mounting plate; 12, first floating tensioning assembly; 121, second support plate; 1211, buffer column; 1212, first through hole; 1213, fixing hole; 122, guide rod; 123, floating wheel structure; 1231, sliding block; 12311, second through hole; 12312, connecting plate; 1232, floating wheel body; 1233, linear bearing; 1234, sensing plate; 124, position sensor; 125, buffer elastic element; 13, second floating tensioning assembly. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0028] Please see Figure 1 As shown, the present invention discloses a welding strip floating tensioning mechanism 10, which is mainly used in the welding strip traction process of a series machine. It includes a support component 11, multiple first floating tensioning components 12 and multiple second floating tensioning components 13. The support component 11 serves as the main support. The multiple first floating tensioning components 12 and multiple second floating tensioning components 13 are respectively arranged at intervals on the support component 11. The first floating tensioning components 12 and the adjacent second floating tensioning components 13 are arranged to avoid gaps. This design can reduce the lateral width of the welding strip floating tensioning mechanism 10 to a certain extent, thereby reducing the space occupied by the welding strip floating tensioning mechanism 10.
[0029] Please see Figure 1As shown, in this embodiment, the support assembly 11 includes a fixed plate 111, a first support plate 112, and a grid mounting plate 113; the fixed plate 111 is fixedly mounted on the welding strip unwinding mechanism; the first support plate 112 and the grid mounting plate 113 are sequentially fixedly mounted above the fixed plate 111. Specifically, a plurality of reinforcing plates 1121 are longitudinally fixedly mounted on the side of the first support plate 112, and the plurality of reinforcing plates 1121 are fixedly mounted on the fixed plate 111 to enhance the support strength of the first support plate 112; a plurality of connecting rods 1122 are also laterally fixedly mounted on the first support plate 112, and a plurality of first floating tensioning components 12 and a plurality of second floating tensioning components 13 are respectively mounted through the connecting rods 1122.
[0030] Please see Figure 1 and Figure 2 As shown, the first floating tensioning assembly 12 includes a second support plate 121, at least one guide rod 122, a floating wheel structure 123, a position sensor 124, and a buffer elastic element 125; the second support plate 121 is fixedly mounted on the support assembly 11; at least one guide rod 122 is longitudinally fixedly mounted on the second support plate 121; the floating wheel structure 123 is slidably mounted on at least one guide rod 122, and the longitudinal movement of the floating wheel structure 123 is guided and limited by the at least one guide rod 122; the position sensor 124 is fixedly mounted on the second support plate 121. The upper part of the guide rod 122 can sense the floating wheel structure 123. The floating wheel structure 123, under its own weight and guided by the guide rod 122, slides down to the position of the positioning sensor 124, thereby tensioning the welding strip on the floating wheel structure 123. The buffer elastic element 125 is fixedly installed at the upper end of the guide rod 122 and can contact the floating wheel structure 123, thereby buffering the upward movement of the floating wheel structure 123 and counteracting its upward inertia, ensuring that the welding strip on the floating wheel structure 123 maintains a certain tension. In this embodiment, two guide rods 122 are respectively fixedly mounted parallel to the second support plate 121 in a longitudinal direction; in other embodiments, the number of guide rods 122 can be one, three, or other multiple rods, depending on actual needs. Specifically, the buffer elastic element 125 is a spring.
[0031] Please see Figure 2As shown, specifically, at least one buffer post 1211 is provided on the second support plate 121, and the at least one buffer post 1211 is located directly below the floating wheel structure 123, which can buffer the floating wheel structure 123; the second support plate 121 is also provided with a plurality of first through holes 1212 and a plurality of fixing holes 1213, and the second support plate 121 passes through the plurality of first through holes 1212 respectively through the corresponding connecting rods 1122, and the opposite ends of the second support plate 121 are fixedly installed on the fixing plate 111 and the grid mounting plate 113 respectively through the corresponding fixing holes 1213.
[0032] Please see Figures 1-3 As shown, the floating wheel structure 123 includes a sliding block 1231, a floating wheel body 1232, at least one linear bearing 1233, and a sensing plate 1234. The sliding block 1231 is slidably mounted on the guide rod 122 and can contact and connect with the buffer elastic element 125. The floating wheel body 1232 is rotatably mounted on the sliding block 1231, and a welding strip is mounted on the floating wheel body 1232. At least one linear bearing 1233 is fixedly mounted in the sliding block 1231 and slidably connected to the guide rod 122. The sensing plate 1234 is fixedly mounted on the sliding block 1231 and can perform sensing operations with the position sensor 124. In this embodiment, two linear bearings 1233 are respectively fixedly mounted in the linear bearing 1233 sliding block 1231 and slidably connected to the corresponding guide rod 122. In other embodiments, the number of linear bearings 1233 can be one, three, or other plurality, and the number can be set according to actual needs.
[0033] Please see Figure 2 and Figure 3 As shown, specifically, two second through holes 12311 are provided through the sliding block 1231, and two linear bearings 1233 are respectively fixedly installed in the corresponding second through holes 12311; a connecting plate 12312 is fixedly installed on the sliding block 1231, and the floating wheel body 1232 is rotatably installed on the connecting plate 12312.
[0034] Please see Figure 1 As shown, in this embodiment, the structure of the second floating tensioning component 13 is the same as that of the first floating tensioning component 12, so its specific structure will not be described in detail here.
[0035] The present invention provides a series machine including a welding strip feeding device, which includes a welding strip floating tensioning mechanism 10 as described above.
[0036] It also includes a cell coating device, a cell conveying device, a cell handling device, a welding strip laying device, and a cell welding strip series connection device;
[0037] The device includes a cell coating unit that applies adhesive to the cells; a cell conveying unit that transports the coated cells; a cell handling unit that transports the coated cells from the output of the cell conveying unit to the input of the cell welding strip series connection unit; a welding strip feeding unit that places welding strip rolls to provide the welding strips required for cell string welding; and a welding strip laying unit that lays welding strips of a predetermined length onto the coated cells at the input of the cell welding strip series connection unit.
[0038] It should be noted that the specific working process of the welding strip floating tensioning mechanism and series machine of this utility model is as follows: multiple welding strips are respectively set on the floating wheel bodies 1232 of multiple first floating tensioning components 12 and multiple second floating tensioning components 13. Under the action of the weight of the sliding block 1231 and the floating wheel body 1232, the sliding block 1231 slides down the guide rod 122 to the position of the position sensor 124. The sensing plate 1243 set on the sliding block 1231 senses the position sensor 124, so that the welding strip set on the floating wheel body 1232 is tensioned. When the sliding block 1231 moves upward under the guidance of the guide rod 122 and contacts the buffer elastic member 125, the buffer elastic member 125 buffers the upward movement of the sliding block 1231, thereby counteracting the inertia of the floating wheel structure 123 rising, so that the welding strip set on the floating wheel structure 123 maintains a certain tension.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A floating tensioning mechanism for welding strips, applied in the welding strip traction process of a series welding machine, characterized in that, include: Support components; Multiple first floating tensioning components are disposed on the support component; Multiple second floating tensioning components are disposed on the support component and spaced apart from multiple first floating tensioning components, and the second floating tensioning components are disposed in a way that avoids gaps with adjacent first floating tensioning components; The first floating tensioning assembly and the second floating tensioning assembly each include a second support plate, which is fixedly mounted on the support assembly; at least one guide rod is longitudinally fixedly mounted on the second support plate; a floating wheel structure is slidably mounted on at least one of the guide rods; a position sensor is fixedly mounted on the second support plate, which can perform sensing operation with the floating wheel structure; and a buffer elastic element is fixedly mounted on the upper end of the guide rod, which can contact and connect with the floating wheel structure.
2. The welding strip floating tensioning mechanism according to claim 1, characterized in that, The floating wheel structure includes a sliding block slidably disposed on the guide rod and capable of contacting and connecting with the buffer elastic element; a floating wheel body rotatably disposed on the sliding block; at least one linear bearing fixedly disposed in the sliding block and slidably connected with the guide rod; and a sensing plate fixedly disposed on the sliding block and capable of sensing with the position sensor.
3. The welding strip floating tensioning mechanism according to claim 2, characterized in that, The sliding block has two through holes, and the two linear bearings are respectively fixed in the corresponding second through holes.
4. The welding strip floating tensioning mechanism according to claim 1, characterized in that, The support assembly includes a fixing plate; a first support plate and a grid mounting plate are sequentially fixed above the fixing plate.
5. The welding strip floating tensioning mechanism according to claim 4, characterized in that, The first support plate has multiple reinforcing plates fixedly arranged longitudinally on its side, and the multiple reinforcing plates are fixedly arranged on the fixed plate.
6. The welding strip floating tensioning mechanism according to claim 4, characterized in that, Multiple connecting rods are horizontally fixedly arranged on the first support plate, and multiple first floating tensioning components and multiple second floating tensioning components are respectively disposed through the connecting rods.
7. A welding strip floating tensioning mechanism according to claim 4, characterized in that, At least one buffer post is provided on the second support plate, and at least one of the buffer posts is located directly below the floating wheel structure.
8. The welding strip floating tensioning mechanism according to claim 7, characterized in that, The second support plate is provided with a plurality of fixing holes, and the opposite ends of the second support plate are respectively fixedly installed on the fixing plate and the grid mounting plate through the corresponding fixing holes.
9. A floating tensioning mechanism for welding strips according to claim 1, characterized in that, The buffer elastic element is a spring.
10. A series-connected machine, characterized in that, Includes a welding strip feeding device, wherein the welding strip feeding device includes the welding strip floating tensioning mechanism as described in any one of claims 1-9; It also includes a cell coating device, a cell conveying device, a cell handling device, a welding strip laying device, and a cell welding strip series connection device; The solar cell coating device applies adhesive to the solar cells; the solar cell conveying device transports the coated solar cells; the solar cell handling device transports the coated solar cells from the output end of the solar cell conveying device to the input end of the solar cell welding strip series connection device; the welding strip feeding device places welding strip rolls to provide the welding strips required for solar cell string welding; and the welding strip laying device lays welding strips of a predetermined length onto the coated solar cells at the input end of the solar cell welding strip series connection device.