CN102528203B - Semi-automatic single welding machine for solar cell slices - Google Patents

Abstract

A semi-automatic single welding machine for solar cells, including an organic base, characterized in that: the base is sequentially provided with a welding ribbon fixing device along the length direction; a welding ribbon straightening device; a feeding device; a flux coating device; Drying device; welding ribbon cutting device, including a knife holder, a first pressing device, a cutter and a welding head, the bottom of the knife holder is also provided with an anvil; A tightening device and a driving device that can control the second pressing device to move back and forth between the cut-off position of the welding strip and the welding station. The present invention realizes the semi-automatic single-welding process of solar cells instead of manual operation. The overall structure is compact and the input cost is low. It meets the product upgrading needs of small and medium-sized photovoltaic enterprises and has a wider market application prospect.

Description

Semi-automatic single welding machine for solar cells

technical field

The invention relates to a welding machine equipment, in particular to a semi-automatic single welding machine for solar cells.

Background technique

In the existing technology, one of the best ways to use solar energy is photovoltaic conversion (photovoltaic effect), which is to make sunlight shine on silicon materials to generate electricity directly. This power generation method is usually realized by using photovoltaic modules. Photovoltaic modules are a A power generating device that generates electricity when exposed to sunlight, consisting of solid photovoltaic cells made almost entirely of semiconductor materials such as silicon, which can be used for a long time without causing any wear and tear.

The packaging technology of the module board is one of the key technologies of photovoltaic modules. In the packaging process of the module board, the welding of the front and negative electrodes is commonly known as single welding. It is a kind of welding on the main grid line of the battery. Cover the flux and dry it, then place the cell on the preheating plate to preheat to 40-50 degrees Celsius, and then place the soldering strip on the appropriate position of the main grid line of the cell (usually the soldering strip is 2 -3mm), so that the centerline of the ribbon coincides with the centerline of the busbar, then slide the soldering iron along the direction of the busbar and weld the entire ribbon firmly. The whole welding process requires very precise operation and control, otherwise it will be easy product quality problems.

At present, the single welding of solar cells is mainly completed by manual welding. Manual operation is used to ensure the positioning accuracy of welding and control the debris rate below 0.3%. Although the output can be guaranteed, the manual operation process cannot improve work efficiency. Moreover, The fully manual welding method has high requirements for the operator, and it is not easy to control the quality of the product. In addition, foreign countries have developed fully automatic welding equipment, such as the fully automatic welding machine produced by the German IMA company, the SL series welding machine produced by the Spanish GOROSABEL company, the TT1200 high-speed serial welding machine produced by the German Dime company, and the NTS produced by the Japanese NPC company. -150-STD automatic welding machine, etc. Although these automatic welding machines can realize automatic operation, but a piece of equipment costs several million, the input cost and maintenance cost are very high, and compared to such a high input cost, the output It has not necessarily been greatly improved, so for small and medium-sized enterprises in our country, such fully automatic welding equipment is not applicable.

Contents of the invention

The technical problem to be solved by the present invention is to provide a semi-automatic single welding machine for solar cells that can replace manual welding and has high productivity and low investment cost.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a semi-automatic single welding machine for solar cells, which includes an organic base, and the solar cells are placed on the welding station of the base, which is characterized in that: The above machine base is sequentially arranged along the length direction with

The ribbon fixing device is used to set the cylindrical ribbon;

A welding ribbon straightening device, which straightens the cylindrical welding ribbon;

A feeding device, which drives the welding ribbon to be automatically conveyed forward;

A soldering flux coating device, which applies flux to the soldering strip;

The flux drying device is used to dry the solder strip coated with flux;

The welding ribbon cutting device includes a knife rest, a first pressing device for fixing the welding ribbon, and a cutting knife that can move in the vertical direction and is used to cut off the welding ribbon. The bottom of the knife rest is also provided with There is an anvil block capable of abutting against the cutter to realize the cutting of the welding ribbon;

a welding head, welding the cut ribbon to the solar battery sheet;

The welding ribbon pulling device determines the cut length of the welding ribbon, and includes a second pressing device that can fix the welding ribbon and can control the second pressing device between the cut position of the welding ribbon and the welding station. A drive device that moves back and forth between the cut-off ribbons is positioned at the welding position of the solar cells on the welding station along the busbar.

In order to ensure that the flux can be evenly applied to the upper and lower surfaces of the solder strip, preferably, the flux coating device includes a container, a felt and a liquid delivery device, wherein the container is located above the felt, Flux is contained in the container, the welding ribbon is passed through the felt, and the liquid delivery device has an input end connected with the container and an output end connected with the felt. Since the container containing the flux is set higher than the felt, the flux can be automatically transported to the felt, and penetrates into the welding ribbon through the felt to ensure that the flux is evenly coated on the welding ribbon.

In order to facilitate the pulling before the next cutting after one cutting of the welding ribbon, preferably, the cutting board is a sliding part driven by a power source and can move back and forth along the length direction of the machine base. When the cutting knife is in the cutting state, the anvil block moves forward to the bottom of the cutting knife, and the first pressing device presses the welding ribbon; when the cutting knife is in the lifting state, the first The hold-down device releases the ribbon and the anvil moves back to the inside of the cutter. Therefore, the cutting board can be driven by the power source to move back and forth along the length direction of the machine base. When the cutting board returns to the initial position, the head of the welding ribbon has a certain margin, which is convenient for the next pulling of the welding ribbon pulling device.

In order to facilitate control and operation, preferably, the first pressing device includes a first electromagnet corresponding to each welding strip and a vertically movable first pressing device driven by each first electromagnet. Rod, the bottom of the first pressing rod is provided with a first pressing head, and the bottom of the first pressing head is also provided with a first pressing bar that can be pressed against the first pressing head. Therefore, the first electromagnet can control the lifting of the first pressure head, which ensures the reliability and accuracy of action execution.

In order to ensure the overall mobility of the second pressing device, preferably, the second pressing device includes a bracket, and the bracket is provided with a plurality of second electromagnets corresponding to each welding strip and corresponding Driven by the second electromagnet, the second pressure rod can move vertically, the bottom of the second pressure rod is provided with a second pressure head, and the bottom of the bracket is also formed with a Tight second bead. Therefore, the second electromagnet, the second pressing rod and the second pressing head can move back and forth together with the bracket driven by the driving device.

In order to simplify the equipment and improve the control accuracy of the driving device, preferably, the driving device includes a motor arranged at the bottom of the base and a linear slide driven by the motor, and the base is also provided along the length direction There is a chute, and the output end of the linear slide table is connected with the support through a driving arm. Simply, the driving device can also be realized by other transmission mechanisms such as lead screw and nut pairs.

In order to ensure the precise positional relationship between the cut off ribbon and the busbar of the solar cell, and improve the welding quality, preferably, the weld ribbon is also provided with a guide between the cut off position and the welding station. A guiding and positioning device that always moves along the direction of the busbar of the solar cell, the said guiding and positioning device includes a plurality of guide blocks, each of which corresponds to a busbar on the solar cell, and each The top of the guide block is provided with a guide groove that can be aligned with the corresponding busbar of the solar battery sheet, and the bottom of the guide groove is provided with air holes that can generate negative pressure, and the air holes are provided with holes that can absorb the solder. with suction cups. Therefore, the guide groove on the guide block can effectively guide the ribbon, preventing the ribbon from deviating from the position of the main grid line of the cell during the pulling process. Moreover, when the guide block is connected to the vacuum generator, the inside of the guide groove The pores of the air hole generate negative pressure, and the welding ribbon can be adsorbed on the guide groove of the guide block through the suction cup, which can fix the welding ribbon, prevent the welding ribbon from shifting during welding, ensure welding accuracy, and improve product quality.

Considering that the distance between the main grid lines of solar cells of different specifications is different, in order to facilitate the adjustment of the relative position of the guide block, as a preference, the guide block is slidably arranged on the On the guide rod arranged in the width direction, two ends of the guide rod are respectively connected with supports, and the supports are fixedly connected to the machine base. Therefore, the guide block can move along the axis direction of the guide rod, so as to adjust the guide block to a position corresponding to the bus bar of the cell.

Considering the impact of the temperature difference before and after welding on the solar cells, in order to reduce the temperature difference deformation of the cells and ensure the best performance of the cells, preferably, the base is located at the welding station adjacent to the solar cells A cell preheating device is also provided.

As a further preference, simply, the cell preheating device is a preheating plate, and the preheating plate is provided with a temperature control device for controlling the temperature of the cell. Therefore, the battery slices waiting to be processed can be preheated by placing them on the preheating plate in a stacked manner, and the preheating temperature can be controlled and adjusted by the temperature control device.

Compared with the prior art, the present invention has the following advantages: Firstly, instead of manual operation, the semi-automatic single welding process of solar cells is realized, the overall structure of the equipment is compact, and the input cost is low, which not only improves work efficiency, but also saves labor , and the welding quality is guaranteed by mechanized operation, which can better meet the product upgrading needs of small and medium-sized photovoltaic enterprises and has a wider market application prospect; secondly, the flux coating device adopts a dripping structure, which not only realizes the help The automatic filling of flux can ensure that the flux on the ribbon can be applied more evenly to ensure the welding quality; in addition, a guiding and positioning device is used to effectively guide and position the ribbon to prevent the ribbon from deviating from the solar cells The direction of the main grid line ensures the accuracy of welding, thereby improving product quality.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

FIG. 2 is a top view of the overall structure shown in FIG. 1 .

Fig. 3 is a schematic structural diagram of a flux coating device according to an embodiment of the present invention.

Fig. 4 is one of the structural schematic diagrams of the welding ribbon cutting device according to the embodiment of the present invention.

Fig. 5 is the second schematic diagram of the structure of the welding ribbon cutting device according to the embodiment of the present invention.

Fig. 6 is one of the cross-sectional views along the line A-A shown in Fig. 4 (the cutting knife is not in action).

Fig. 7 is the second sectional view along the line A-A shown in Fig. 4 (state where the cutter cuts the welding strip).

Fig. 8 is a schematic structural diagram of a ribbon pulling device according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a second pressing device according to an embodiment of the present invention.

Fig. 10 is one of the structural schematic diagrams of the first pressing device and the second pressing device according to the embodiment of the present invention.

Fig. 11 is the second schematic diagram of the structure of the pressing head of the first pressing device and the second pressing device according to the embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 11, it is a semi-automatic single welding machine for solar cells. The single welding machine in this embodiment realizes automatic transportation and automatic welding of welding strips through mechanized devices and electrified control, while solar cells The pick-and-place of the sheet is manually operated, and the semi-automatic single welding of the solar cell is realized through the combination of manual operation and mechanized operation.

The single welding machine of this embodiment includes an organic base A, and a welding station is arranged on the machine base A. When working, the solar battery sheet C is placed on the welding station by manual operation. After the welding is completed, the battery is also manually operated. Sheet C is taken out from the welding station; considering the temperature rise during welding, in order to prevent the temperature difference deformation of solar cell C and reduce the temperature difference between the normal temperature and the solar cell C during welding, base A is placed on the solar cell C The welding station and the side adjacent to the welding station are respectively equipped with a battery slice C preheating device. The preheating device is a preheating plate B fixed on the machine base A, see Figure 2, processed and unprocessed The solar cells C can be respectively placed on different preheating plates B to keep warm or heated, and the preheating plate B is also provided with a temperature control device for controlling the heating temperature of the cells C.

The base A of the single welding machine in this embodiment is sequentially provided with a welding ribbon fixing device 1, a welding ribbon straightening device 2, a feeding device 3, a flux coating device 4, a flux Drying device 5, welding ribbon cutting device 6 and welding ribbon pulling device 7, here, welding ribbon fixing device 1, welding ribbon straightening device 2, feeding device 3, flux drying device 5 are conventional technology, can adopt existing It can be realized by various related devices in the art, and can also be realized by adopting the structure shown in the figure of this embodiment.

Wherein, the welding ribbon fixing device 1 is used to install the welding ribbon wound into a cylindrical shape, as shown in Figure 1, the welding ribbon fixing device 1 of the present embodiment is preferably a frame structure, and the frame structure is provided with a plurality of cross bars , the ribbon wound into a tube is installed on a crossbar of a suitable height (not shown in the figure), and the number and spacing of the required ribbons are based on the number of busbars and the number of busbars on the solar cell C to be welded. Depending on the spacing distance, the width of the ribbon D should be consistent with the width of the main grid line d1 of the cell C. Usually, the solar cell C is mostly a two-grid structure (two main grid lines d1) or a three-grid structure (the main grid line d1 There are three d1), the solar cell C in this embodiment adopts the cell C with two main grid lines d1.

In order to ensure the straightness of the welding strip D and ensure the flux coating quality and welding quality of the welding strip D, the welding strip D pulled out from the welding strip fixing device 1 needs to be straightened by the welding strip straightening device 2, and the welding strip D is straightened. The structure of the straightening device can be realized by various existing equipment. This embodiment simply adopts an inclined frame with a plurality of crosspieces arranged parallel to each other in the middle of the frame. on each rung.

The feeding device 3 of this embodiment can drive the welding ribbon to be automatically conveyed forward. The feeding device 3 includes an upper roller 31 and a lower roller 32, and the welding ribbon D is passed between the upper roller 31 and the lower roller 32. In the gap, wherein, the upper roller 31 can be lifted or pressed down, so as to adjust the pressing force between the upper roller 31 and the lower roller 32, and the upper roller 31 and the lower roller 32 are attached to each other by rolling The friction produces a forward pulling force on the welding belt D, and then realizes the automatic delivery of the welding belt D. If the automatic delivery is to be stopped, the upper roller 31 is lifted and left from the lower roller 32.

Flux is an auxiliary material used in welding. Its main function is to remove the oxides on the surface of the solder and the base metal to be welded, so that the metal surface can reach the necessary cleanliness, prevent the re-oxidation of the solder surface during welding, and reduce the surface tension of the solder; To improve the soldering performance, the soldering tape D generally needs to be coated with flux before it is formally welded to the solar cell C. In this embodiment, the soldering flux is applied to the soldering tape D through the flux coating device 4;

The flux coating device 4 of this embodiment includes a container 41, a felt and a liquid delivery device, wherein the container 41 is suspended and fixed by the first support rod 411, and flux is contained in the container 41; The upper felt 42 and the lower felt 43 are formed together, and the welding tape D is passed between the upper felt 42 and the lower felt 43. In order to better fix the upper felt 42 and the lower felt 43 together, the bottom of the lower felt 43 is provided with Bottom plate 44, the top of upper felt 42 is provided with a pressing plate 45 fixed with base plate 44, is connected by screw between pressing plate 45 and base plate 44; Fixed, the two ends of the adjustment device 46 are respectively connected with the input pipe 461 communicating with the container 41 and the output pipe 462 delivered to the upper felt 42, and the top of the pressing plate 45 is also provided with a guide groove 451 that can accommodate the output pipe 462 of the liquid delivery device. The end of the output pipe 462 can be accommodated and limited in the guide groove 451, and one side of the adjustment device 46 is also provided with an adjustment switch 463 capable of controlling the flow rate of the output pipe 462, so as to adjust the flux delivered to the felt. traffic;

The flux coating device 4 of this embodiment adopts a drip structure, and a certain height difference is formed between the container 41, the liquid delivery device and the felt from high to low, wherein the height of the first support rod 411 is greater than that of the second support rod 464 That is, the container 41 is at the highest position, the felt is at the lowest position, and the liquid delivery device is located between the container 41 and the felt, so the flux in the container 41 can be automatically added to the felt, and the flux passes through the felt. Infiltrate and then apply to the welding strip D, because the welding strip D passes between the upper felt 42 and the lower felt 43, the upper surface and the lower surface of the welding strip D can be coated with flux, which ensures that the flux is applied evenly In addition, the flux flow can also be controlled through the adjustment switch 463 of the liquid delivery device, which is easy to operate and easy to use.

The solder strip D after passing through the flux coating device 4 also needs to be dried through the flux drying device 5. In order to improve the activity of the flux, the temperature of the flux drying device 5 should not be too high to ensure that the solar cells C Reliability under long-term working conditions. Usually, the ideal drying temperature is 100°C. In actual operation, the drying temperature is generally controlled at about 60°C.

The ribbon cutting device 6 of this embodiment is used to cut the ribbon D and weld the cut ribbon D to the solar cell C. The ribbon cutting device 6 includes a knife holder 61 for the ribbon D to pass through from the bottom , the first pressing device for fixing the welding strip D, the cutting knife 62 and the welding head 9 that can move in the vertical direction, wherein, the welding head 9 can be realized by various devices in the prior art, the welding head 9 It is arranged on the knife rest 61 and can move along the vertical direction of the knife rest 61;

The first pressing device is arranged on the side of the tool rest 61 opposite to the flux drying device 5, and the first pressing device includes a first electromagnet 63 (generally 2 to 3 1), each first electromagnet 63 is provided with a vertically movable first pressure rod 64 driven by the first electromagnet 63 (usually the purchased electromagnet itself has a pressure rod), the first pressure rod The bottom of the rod 64 is provided with a first pressure head 65, and the knife rest 61 is also provided with a first pressure bar 611 which can be tightly pressed against the first pressure head 65 at the bottom of the first pressure head 65. The compression effect of the first indenter 65, the bottom of the first indenter 65 adopts a concave-convex texture structure, and the cross section of the first indenter 65 can adopt various shapes, such as square, circular, rectangular or triangular, etc., correspondingly, The surface of the first bead 611 is also made into a concave-convex surface. When the first pressure head 65 and the first bead 611 are offset, there can be better frictional contact force between the two to ensure the pressing effect of the welding strip D;

In order to facilitate the next pull of the ribbon pulling device 7 after each cut, the bottom of the knife rest 61 is also provided with an anvil 66 that can be offset against the cutter 62. The sliding part that moves back and forth in the direction is provided with a slide table cylinder 67 at the bottom of the knife rest 61, and the cutting board 66 is fixedly arranged on the cylinder body of the slide table cylinder 67 and can move back and forth with the cylinder body; when the cutting knife 62 is in the cutting state , the cutting board 66 moves forward to the bottom of the cutter 62 under the drive of the slide table cylinder 67, the first pressing device compresses the welding ribbon D, and the cutting knife 62 falls against the cutting board 66, thereby cutting the welding ribbon D; 62 is in the lifted state, the first pressing device releases the welding ribbon D, and the cutting board 66 moves backward to the inner side of the cutting knife 62 under the drive of the slide table cylinder 67. At this time, the cutting board 66 and the cutting knife 62 are misplaced. After the anvil 66 is retracted, the welding ribbon D located at the front of the anvil 66 is exposed, which can facilitate the next pulling of the welding ribbon pulling device 7 .

The welding ribbon pulling device 7 of this embodiment mainly realizes pulling the welding ribbon D from the cutting position of the welding ribbon cutting device 6 to the welding position, not only can determine the cut length of the welding ribbon D, but also can cut the welding ribbon D Locating to the welding position of the solar cell C located on the welding station along the main grid line d1;

Specifically, the welding ribbon pulling device 7 includes a second pressing device that can fix the welding ribbon D and a driving device ( It can be realized by using various equipment in the prior art, not shown in the figure), wherein the second pressing device includes an L-shaped bracket 71, and the L-shaped vertical plate 711 of the bracket 71 is provided with a corresponding welding strip A plurality of second electromagnets 72 (generally 2 to 3) provided by D, each second electromagnet 72 is provided with a vertically movable second pressure rod 73 driven by the second electromagnet 72 (usually The purchased electromagnet itself just has a pressure bar), the bottom of the second pressure bar 73 is provided with a second pressure head 74, and the L-shaped horizontal base of the support 71 forms a second pressure bar that can be pressed against the second pressure head 74 712, the second pressing device is similar to the first pressing device, the cross-section of the second pressing head 74 can adopt various shapes (such as square, circular, oval, etc.), in order to increase the friction force, the second pressing head The bottom of the head 74 also has a concave-convex texture, and correspondingly, the surface of the second bead 712 is concave-convex;

In order to improve the precision, the drive device includes a motor and a linear slide table driven by the motor. The base A also has a chute a1 along the length direction, and a drive arm 75 that can drive the bracket 71 to slide is arranged in the chute a1. One end of the driving arm 75 is connected to the output end of the linear slide, and the other end of the driving arm 75 is fixedly connected to the bracket 71 . The driving device can also adopt a linear sliding table device, which can further improve the control accuracy and simplify equipment installation.

In order to further improve the welding accuracy and prevent the ribbon D from deviating from the busbar direction of the solar cell C during the pulling process, this embodiment also provides a guiding and positioning device between the cut position of the ribbon D and the welding station 8. The guiding and positioning device 8 can guide the cut ribbon D to always move along the busbar direction of the corresponding solar cell C; wherein, the guiding and positioning device 8 includes a guide rod arranged along the width direction of the machine base A 81 and a plurality of guide blocks 82 (usually 2 to 3) slidably arranged on the guide rod 81, the two ends of the guide rod 81 are respectively supported on the support 83, and the support 83 is fixedly connected to the base A Each guide block 82 corresponds to a busbar on the solar cell C, and each guide block 82 has an air suction port 821 that can be connected to an external vacuum generator, and the top of each guide block 82 is opened There is a guide groove 822 capable of aligning the corresponding busbar lines of the solar cells C. The bottom of the guide groove 822 is provided with an air hole 823, and a suction cup is arranged on the air hole 823. When the ribbon pulling device 7 pulls the cut ribbon D to move forward During the process, the welding strip D can move along the corresponding guide groove 822 to play a guiding role, prevent the welding strip D from deviating from the position of the busbar line, and improve the welding accuracy; and when the guide block 82 exhausts outward, the guide groove The air hole 823 on the 822 generates negative pressure, and the welding ribbon D can be sucked by the suction cup, so as to fix the welding ribbon D and ensure the reliability and accuracy of the welding positioning of the welding ribbon D.

The working process of the single welding machine of the present embodiment is:

(1), start the feeding device 3, the cylindrical welding ribbon installed on the welding ribbon fixing device 1 is wound and straightened by the welding ribbon straightening device 2, and is automatically forwarded by the driving of the feeding device 3;

(2), the welding strip D enters the flux coating device 4 to apply flux, and then dries through the flux drying device 5;

(3), the welding ribbon D passes through the bottom of the welding ribbon cutting device 6, and at the same time, the welding ribbon pulling device 7 fixes the front end of the welding ribbon D through the second pressing device, and pulls the welding ribbon D forward from the cutting position To the length that needs to be welded, at this time, manually place the preheated solar cell C to the welding station;

(4), start the first pressing device to compress the welding ribbon D, at the same time, the feeding device 3 stops the delivery of the welding ribbon D, and the cutting board 66 moves below the cutter 62 under the drive of the slide cylinder 67, and the cutter 62 moves downward Abut against the anvil 66 and cut off the welding ribbon D, then the first pressing device releases the welding ribbon D, and then the anvil 66 returns to the inside of the cutter 62;

(5), the welding ribbon pulling device 7 continues to pull the cut welding ribbon D to move forward, and controls the welding position of the front end of the welding ribbon D relative to the busbar line of the solar cell C, and the cut welding ribbon D moves along the guide positioning device 8, the guide groove 822 corresponding to the guide block 82 moves to prevent the welding strip D from deviating from the position of the main grid line;

(6), after the welding ribbon pulling device 7 is moved and positioned, the guide block 82 exhausts, and the air holes 823 on the guiding block 82 generate negative pressure to suck and fix the cut welding ribbon D, and the second pressure of the welding ribbon pulling device 7 The tightening device is released, and subsequently, the welding ribbon pulling device 7 returns to the cutting position;

(7), the welding head 9 on the welding ribbon cutting device 6 is heated and dropped, and the cut welding ribbon D is welded to the solar cell C. After the welding is completed, the welding head 9 returns, and the guide block 82 stops working and will cut off The ribbon D is loosened to complete a welding cycle.

In order to prevent deformation due to temperature difference, the solar cells C after soldering are manually moved to the heat dissipation area, and the next process is performed after the temperature drops to an appropriate range. When it is necessary to weld the next solar cell C, at this time, the feeding device 3 is restarted, and the above steps (3)-(7) are repeated, and the next welding cycle can be performed.

Claims (9)

1. the Semiautomatic single operator set of a solar battery sheet, include support (A), described solar battery sheet (C) is positioned on the welding post of this support (A), it is characterized in that: described support (A) is disposed with along its length

Welding fixture (1), is wound into the welding (D) of tubular for arranging;

Welding strip alignment device (2), carries out stretching processing by described welding (D);

Pay-off (3), drives described welding (D) to be automatically fed forward;

Solder coater on electric (4), is applied to scaling powder on described welding (D);

Scaling powder drying unit (5), is dried processing to being coated with the described welding (D) of scaling powder;

Cutting device of welding strips (6), include knife rest (61), for the first hold down gag of fixing described welding (D) with can vertically move and the cutting knife (62) that is used for cutting off described welding (D), the bottom of described knife rest (61) is also provided with and can offsets with this cutting knife (62) and realize the chopping block (66) that described welding (D) cuts off;

Soldering tip (9), is welded to cut described welding (D) on described solar battery sheet (C);

Solder strip traction device (7), determine the length that is cut off of described welding (D), include the second hold down gag of fixing welding (D) and can control this second hold down gag at the drive unit moving around between position and welding post that is cut off of described welding (D), the described welding (D) after cutting off is positioned to the solar battery sheet (C) that is positioned on described welding post along the welding position of main grid line;

Described drive unit includes and is arranged at the motor of described knife rest (61) bottom and by this motor-driven straight line slide unit, described knife rest (61) also offers a chute (a1) along its length, between the support (71) of the output of described straight line slide unit and the second hold down gag, by an actuating arm, is connected.

2. the Semiautomatic single operator set of solar battery sheet according to claim 1, it is characterized in that: described solder coater on electric (4) includes container (41), felt and liquid feeding device, wherein, described container (41) is positioned at the top of described felt, this container is contained with scaling powder in (41), described welding (D) is arranged in described felt, and described liquid feeding device has the input and the output that is connected described felt that connects described container (41).

3. the Semiautomatic single operator set of solar battery sheet according to claim 1, it is characterized in that: described chopping block (66) is one by power source, to be driven and the slide unit that can move around along the length direction of described support (A), at described cutting knife (62) under cut state, described chopping block (66) moves forward to the below of described cutting knife (62), and described the first hold down gag compresses described welding (D); At described cutting knife (62), under lifting status, described the first hold down gag unclamps described welding (D), and described chopping block (66) moves to the inner side of described cutting knife (62) backward.

4. the Semiautomatic single operator set of solar battery sheet according to claim 1, it is characterized in that: the first described hold down gag includes first electromagnet (63) of corresponding each welding (D) setting and first depression bar (64) that can vertically move being driven by the first electromagnet (63) described in each, the bottom of described the first depression bar (64) is provided with the first pressure head (65), and the bottom of described the first pressure head (65) is also provided with first press strip (611) that can be tight against with this first pressure head (65).

5. the Semiautomatic single operator set of solar battery sheet according to claim 1, it is characterized in that: on the support (71) of the second described hold down gag, be provided with a plurality of second electromagnet (72) of corresponding each welding (D) setting and have corresponding the second electromagnet (72) to drive lower second depression bar (73) that can vertically move, the bottom of described the second depression bar (73) is provided with the second pressure head (74), and the bottom of described support (71) is also formed with second press strip (712) that can be tight against with described the second pressure head (74).

6. according to the Semiautomatic single operator set of the solar battery sheet described in arbitrary claim in claim 1～5, it is characterized in that: described welding (D) is also provided with bootable guide locating device provided (8) that welding (D) moves along the main grid line direction of described solar battery sheet (C) all the time that are cut off being cut off between position and welding post, described guide locating device provided (8) include a plurality of guide pads (82), a main grid line on the corresponding solar battery sheet of guide pad described in each (82) (C), and, the top of guide pad described in each (82) offers the guide groove (822) that can align with the corresponding main grid line of solar battery sheet (C), the bottom of described guide groove (822) offers the pore (823) that can produce negative pressure, described pore is provided with the sucker that can hold described welding (D) on (823).

7. the Semiautomatic single operator set of solar battery sheet according to claim 6, it is characterized in that: described guide pad (82) is mounted slidably on the guide post (81) arranging in the width along described support (A), the two ends of described guide post (81) are connected with respectively bearing (83), and described bearing (83) is fixedly connected on described support (A).

8. according to the Semiautomatic single operator set of the solar battery sheet described in arbitrary claim in claim 1～5, it is characterized in that: described support (A) is also provided with cell piece preheating device at the welding post place of contiguous described solar battery sheet (C).

9. the Semiautomatic single operator set of solar battery sheet according to claim 8, is characterized in that: described cell piece preheating device is a preheating table (B), is provided with the attemperating unit of controlling this preheating table temperature on described preheating table (B).

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