A welding strip feeding structure of an automatic stringer for photovoltaic panels

Abstract

The utility model relates to a kind of welding strip feeding structure of photovoltaic panel automatic string welding machine, including rack, the support side plate is equipped in the rack upside, the rack side is equipped with multiple one-way guide mechanism;Unwinding mechanism, the unwinding mechanism is arranged in the support side plate side, the unwinding mechanism includes multiple support shafts that rotate cooperatively in the support side plate side, welding strip roll that is fixedly sleeved on the support shaft;By setting unwinding mechanism, it is convenient to pass through the lock shaft function of servo motor and the characteristic that worm wheel is not easy to reverse drive worm rotation, and then fixed worm wheel, support shaft and welding strip roll, and then avoid welding strip roll to continue rotating due to inertial effect, lead to welding strip on welding strip roll A large number of loose, need artificial winding again, increase overhaul time, or lead to welding strip large-angle bending or folding, make the problem that welding strip can not be used, and servo motor drives worm drive worm wheel, support shaft and welding strip roll rotation, avoid welding strip to pull welding strip roll rotation, reduce the probability that welding strip is pulled off.

Description

Technical Field

[0001] This utility model relates to the technical field of welding strip feeding structure, and in particular to a welding strip feeding structure for an automatic photovoltaic panel string welding machine. Background Technology

[0002] A stringer uses a mechanical transmission mechanism to transport solar cells, and then uses high-temperature gas from hot air ducts on a heated base plate to weld the cells together. This connection between the solar cells in a photovoltaic module serves as a conductive and electrostatically charged mechanism.

[0003] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, is divided into busbars and interconnects. Solder ribbon is used in the welding process of photovoltaic modules.

[0004] As a crucial raw material, the quality of the solder strip directly affects the current collection efficiency of photovoltaic modules, thus impacting the overall performance of the module.

[0005] The rate has a significant impact.

[0006] A search revealed a solar cell string welding machine ribbon feeding mechanism (publication number CN207425828U), comprising a frame, several mounting rollers connected to the frame and threaded onto the ribbon roll, and a separator roller for spaced distribution of the ribbon strips. The key technical feature is that the frame is equipped with several sets of ribbon detection components for detecting whether the ribbon strips are broken. Each ribbon detection component includes a first conductive plate mounted on the separator rollers, a second conductive plate mounted on the frame forming a path with the first conductive plate and the ribbon strip, and a prompting circuit coupled to the first conductive plate for alerting the operator. By detecting the continuity of the ribbon strips through the ribbon detection components and alerting the operator through the prompting circuit, the mechanism effectively reduces resource waste and improves product yield.

[0007] When the device in the disclosed patent is in use, the welding strip roll is rotated by pulling the welding strip. Even if the equipment is stopped after the welding strip is detected to be broken, the welding strip roll will continue to rotate due to inertia. This will cause a large amount of welding strip on the welding strip roll to become loose, requiring manual rewinding, which increases maintenance time, or cause the welding strip to be bent at a large angle or folded in half, making the welding strip unusable. Utility Model Content

[0008] In response to the technical problems in existing patents, where the welding strip roll continues to rotate due to inertia after the welding strip is detected to break and the equipment is stopped, resulting in a large amount of welding strip loosening on the roll and requiring manual rewinding, increasing maintenance time, or causing the welding strip to bend at a large angle or be folded in half, rendering the welding strip unusable, this utility model provides a welding strip feeding structure for an automatic photovoltaic panel string welding machine.

[0009] The technical solution adopted in this utility model is: a strip feeding structure for an automatic photovoltaic panel stringer, comprising:

[0010] The frame has a supporting side plate on its upper side and multiple one-way guide mechanisms on one side of the frame;

[0011] An unwinding mechanism is provided on one side of the support side plate. The unwinding mechanism includes multiple support shafts rotatably coupled to one side of the support side plate, a welding strip roll fixedly sleeved on the support shafts, a servo motor fixed to one side of the support side plate, a worm gear fixed to the output end of the servo motor, and a worm wheel fixed to one end of the support shaft that passes through the support side plate. The worm gear meshes with the multiple worm wheels.

[0012] Furthermore, the unidirectional guide mechanism includes a support bar connected to one side of the support side plate, a support frame connected to one side of the support bar, a first roller rotatably fitted within the support frame, a U-shaped frame slidably fitted within one side of the support frame, and a second roller rotatably fitted within the U-shaped frame. Both ends of the first roller are provided with pivots penetrating the support frame. One pivot extends out of the support frame and has a limiting disc at one end. A spring ball is embedded in one side of the support frame. Multiple positioning grooves are arranged circumferentially at one end of the limiting disc, and the spring ball corresponds to one of the positioning grooves. A guide groove corresponding to the U-shaped frame is provided on one side of the support frame. One end of the U-shaped frame slidably fits within the guide groove. A Torx handle screw rotatably fits on one side of the support frame and threadedly engages with the U-shaped frame. A first bearing is embedded in one side of the support frame. A smooth curved surface is provided on the outer side of one end of the Torx handle screw, and one end of the Torx handle screw is fixed within the first bearing.

[0013] Furthermore, a second bearing is embedded in one side of the support side plate, one end of the support shaft is fixed in the second bearing, a bearing seat is provided on one side of the support side plate, a third bearing is provided in the bearing seat, a smooth curved surface is provided on the outer side of one end of the worm, and one end of the worm is fixed in the third bearing.

[0014] Furthermore, a horizontal roller corresponding to the support shaft is rotatably fitted on one side of the support side plate, and a first conductive sheet is wrapped around the outside of the horizontal roller. A dividing roller is rotatably fitted on one side of the support side plate, and an annular dividing groove corresponding to the welding strip roll is provided on the dividing roller. A second conductive sheet is provided in the annular dividing groove. The second conductive sheet has a circular ring structure and a U-shaped vertical cross-section.

[0015] The beneficial effects of this utility model are:

[0016] By setting up an unwinding mechanism, the servo motor's shaft locking function and the worm wheel's characteristic of not easily driving the worm gear to rotate in the reverse direction can be used to fix the worm wheel, support shaft, and welding strip roll. This prevents the welding strip roll from continuing to rotate due to inertia, which would cause a large amount of welding strip on the roll to become loose, requiring manual rewinding and increasing maintenance time, or causing the welding strip to bend at a large angle or be folded in half, making the welding strip unusable. Furthermore, by using a servo motor to drive the worm gear to rotate the worm wheel, support shaft, and welding strip roll, the welding strip is prevented from pulling the welding strip roll to rotate, reducing the probability of the welding strip being broken.

[0017] By setting up a one-way guiding mechanism, the U-shaped frame and the second roller are driven to slide by rotating the plum blossom handle screw, which facilitates the guiding and conveying of welding strips of different thicknesses between the first and second rollers. When the first and second conductive sheets break, the spring ball is locked into the positioning groove on the limiting plate to position the first roller, reducing the reverse discharge of welding strips between the first and second rollers and reducing the probability of increasing the workload of workers by manually passing the welding strips through the first and second rollers again. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the unwinding mechanism in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the unwinding mechanism in this utility model;

[0021] Figure 4 This is a cross-sectional view of the unwinding mechanism in this utility model.

[0022] The diagram is marked as follows:

[0023] 1. Frame; 101. Support side plate; 102. Horizontal roller; 103. First conductive sheet; 104. Separating roller; 105. Annular dividing groove; 106. Second conductive sheet; 2. Unwinding mechanism; 201. Support shaft; 202. Welding strip roll; 203. Servo motor; 204. Worm gear; 205. Worm wheel; 3. One-way guide mechanism; 301. Support bar; 302. Support frame; 303. First roller; 304. U-shaped frame; 305. Second roller; 306. Limiting plate; 307. Spring ball; 308. Positioning groove; 309. Guide groove; 310. Torx handle screw. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0027] To address the problems existing in the background art, this application proposes the following technical solution:

[0028] A ribbon feeding structure for an automatic photovoltaic panel stringing machine includes:

[0029] The frame 1 has a support side plate 101 on its upper side and multiple one-way guide mechanisms 3 on one side of the frame 1.

[0030] The unwinding mechanism 2 is located on one side of the support side plate 101. The unwinding mechanism 2 includes multiple support shafts 201 rotatably coupled to one side of the support side plate 101, a welding strip roll 202 fixedly sleeved on the support shafts 201, a servo motor 203 fixed to one side of the support side plate 101, a worm gear 204 fixed to the output end of the servo motor 203, and a worm wheel 205 fixed to one end of the support shaft 201 that passes through the support side plate 101. The worm gear 204 meshes with the multiple worm wheels 205, and multiple one-way guide mechanisms 3 correspond one-to-one with the multiple welding strip rolls 202.

[0031] Furthermore, the one-way guide mechanism 3 includes a support bar 301 connected to one side of the support side plate 101, a support frame 302 connected to one side of the support bar 301, a first roller 303 rotatably fitted within the support frame 302, a U-shaped frame 304 slidably fitted within one side of the support frame 302, and a second roller 305 rotatably fitted within the U-shaped frame 304. Both ends of the first roller 303 are provided with pivots penetrating the support frame 302. One pivot, extending out of the support frame 302, is provided with a limiting disc 306. A spring ball bearing 307 is embedded in one side of the support frame 302. One end of the limiting disc 306 has a circumferential... The array has multiple positioning slots 308, and spring ball bearings 307 correspond to the positioning slots 308. One side of the support frame 302 is provided with a guide slot 309 corresponding to the U-shaped frame 304. One end of the U-shaped frame 304 is slidably fitted in the guide slot 309. One side of the support frame 302 is rotatably fitted with a Torx handle screw 310 that is threaded into the U-shaped frame 304. A first bearing is embedded on one side of the support frame 302. One end of the Torx handle screw 310 has a smooth curved surface on its outer side. One end of the Torx handle screw 310 is fixed in the first bearing, which facilitates the improvement of the rotation stability of the Torx handle screw 310 through the first bearing.

[0032] Furthermore, a second bearing is embedded in one side of the support side plate 101, one end of the support shaft 201 is fixed in the second bearing, a bearing seat is provided on one side of the support side plate 101, a third bearing is provided in the bearing seat, a smooth curved surface is provided on the outer side of one end of the worm 204, and one end of the worm 204 is fixed in the third bearing, so as to improve the stability of the meshing between the worm 204 and the worm wheel 205 through the second bearing and the third bearing.

[0033] Furthermore, a horizontal roller 102 corresponding to the support shaft 201 is rotatably fitted on one side of the support side plate 101. A first conductive sheet 103 is wrapped around the outside of the horizontal roller 102. A dividing roller 104 is rotatably fitted on one side of the support side plate 101. The dividing roller 104 is provided with an annular dividing groove 105 corresponding to the welding strip roll 202. A second conductive sheet 106 is provided in the annular dividing groove 105. The second conductive sheet 106 has a circular ring structure and a U-shaped vertical cross section. The first conductive sheet 103 and the first conductive sheet 103 are electrically connected to the prompting circuit. The prompting circuit is the same as the first conductive sheet 103 and the first conductive sheet 103 are electrically connected to the prompting circuit in the welding strip feeding mechanism of a solar cell string welding machine in publication number CN207425828U.

[0034] Working principle: When the first conductive sheet 103 and the second conductive sheet 106 break, the servo motor 203 is turned off. The locking function of the servo motor 203 fixes the worm gear 204, which in turn fixes the worm wheel 205, support shaft 201, and welding strip roll 202. This prevents the welding strip roll 202 from continuing to rotate due to inertia, which would cause a large amount of welding strip on the roll to loosen, requiring manual rewinding and increasing maintenance time, or causing the welding strip to bend at a large angle or fold, rendering the welding strip unusable. Furthermore, the servo motor 203 drives the worm gear 204 to rotate the worm wheel 205, support shaft 201, and welding strip roll 202, preventing the welding strip from pulling the welding strip roll 202 and reducing the strain on the welding strip. The probability of breakage is reduced by rotating the plum blossom handle screw 310 to drive the U-shaped frame 304 and the second roller 305 to slide, which facilitates the guiding and conveying of welding strips of different thicknesses between the first roller 303 and the second roller 305. When the first conductive sheet 103 and the second conductive sheet 106 break, the spring ball 307 is engaged in the positioning groove 308 on the limiting plate 306 to position the first roller 303, reducing the probability of welding strip vibration causing the first roller 303 and the second roller 305 to rotate in opposite directions. This causes the welding strip to be discharged in the opposite direction between the first roller 303 and the second roller 305, reducing the probability of increasing the worker's workload by having to manually pass the welding strip through the first roller 303 and the second roller 305 again.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A ribbon feeding structure for an automatic photovoltaic panel stringing machine, characterized in that, include: A frame (1) is provided on the upper side of the frame (1) and a plurality of one-way guide mechanisms (3) are provided on one side of the frame (1). The unwinding mechanism (2) is disposed on one side of the support side plate (101). The unwinding mechanism (2) includes a plurality of support shafts (201) rotatably engaged on one side of the support side plate (101), a welding strip roll (202) fixedly sleeved on the support shaft (201), a servo motor (203) fixed on one side of the support side plate (101), a worm (204) fixed at the output end of the servo motor (203), and a worm wheel (205) fixed at one end of the support shaft (201) passing through the support side plate (101). The worm (204) meshes with the plurality of worm wheels (205).

2. The ribbon feeding structure of an automatic photovoltaic panel stringer according to claim 1, characterized in that, The one-way guide mechanism (3) includes a support bar (301) connected to one side of the support side plate (101), a support frame (302) connected to one side of the support bar (301), a first roller (303) rotatably fitted in the support frame (302), a U-shaped frame (304) slidably fitted in one side of the support frame (302), and a second roller (305) rotatably fitted in the U-shaped frame (304).

3. The ribbon feeding structure of an automatic photovoltaic panel stringer according to claim 2, characterized in that, The first roller (303) has a rotating shaft that passes through the support frame (302) at both ends. One of the rotating shafts extends out of the support frame (302) and has a limiting plate (306). A spring ball (307) is embedded in one side of the support frame (302). The limiting plate (306) has a plurality of positioning grooves (308) arranged in a circular array at one end. The spring ball (307) corresponds to the positioning groove (308).

4. The ribbon feeding structure of an automatic photovoltaic panel stringer according to claim 3, characterized in that, The support frame (302) has a guide groove (309) on one side corresponding to the U-shaped frame (304). One end of the U-shaped frame (304) is slidably fitted in the guide groove (309). The support frame (302) has a Torx handle screw (310) that is threadedly fitted to the U-shaped frame (304) on one side. A first bearing is embedded on one side of the support frame (302). One end of the Torx handle screw (310) has a smooth curved surface on its outer side. One end of the Torx handle screw (310) is fixed in the first bearing.

5. The ribbon feeding structure of an automatic photovoltaic panel stringer according to claim 1, characterized in that, A second bearing is embedded in one side of the support side plate (101), and one end of the support shaft (201) is fixed in the second bearing. A bearing seat is provided on one side of the support side plate (101), and a third bearing is provided in the bearing seat. A smooth curved surface is provided on the outer side of one end of the worm (204), and one end of the worm (204) is fixed in the third bearing.

6. The ribbon feeding structure of an automatic photovoltaic panel stringer according to claim 1, characterized in that, The support side plate (101) is rotatably fitted with a horizontal roller (102) corresponding to the support shaft (201) on one side. The horizontal roller (102) is covered with a first conductive sheet (103) on the outside. The support side plate (101) is rotatably fitted with a separator roller (104). The separator roller (104) is provided with an annular dividing groove (105) corresponding to the welding strip roll (202). The annular dividing groove (105) is provided with a second conductive sheet (106). The second conductive sheet (106) has a circular ring structure and a U-shaped vertical cross section.

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