Photovoltaic bus bar rolling and drawing integrated production equipment

Abstract

The utility model relates to the technical field of metal wire preparation, in particular to rolling and drawing integrated production equipment for a photovoltaic bus bar. A plurality of rolling assemblies are arranged at the upper end of the rack side by side, and a plurality of tension assemblies used for controlling wire tensioning are installed at the lower end of the rack. A die assembly is installed on the lower right portion of each rolling assembly, a driving transmission wheel is installed on the lower left portion of each die assembly, and a driven transmission wheel matched with the driving transmission wheel is arranged below the driving transmission wheel. Compared with the prior art, the rolling number is reduced, meanwhile, the size precision of the bus bar is guaranteed, and certain requirements for rolling precision and die precision are achieved; the two servo motors and the two transmission motors need to be linked with the extension and retraction of the air cylinder, so that a relatively high corresponding speed is ensured; two wire rod production processes are integrated into one device, the number of rolling times is reduced, the subsequent drawing process is removed, the two processes are integrated together, the production efficiency is improved, the wire rod passes through the swing rod, the wire rod speed is accurately controlled, and the wire rod cannot be snapped.

Description

Technical Field

[0001] The utility model relates to the technical field of metal wire preparation, in particular to photovoltaic busbar rolling and drawing integrated production equipment. Background Art

[0002] Photovoltaic ribbon is a crucial material in the photovoltaic module welding process. It is primarily divided into interconnecting ribbons and busbar ribbons. Busbar ribbons are used to connect photovoltaic cells and collect and transmit the current from them. Commercially available busbar ribbons are made from round copper wire, which is processed from cylindrical copper wire into rectangular pieces through rolling and drawing processes.

[0003] The processing equipment currently available on the market uses only a single rolling process. In order to ensure the dimensional parameters of the busbar, the number of rolling passes needs to be increased, which will increase the length of the equipment. On the one hand, this will increase the equipment manufacturing cost, and on the other hand, it will also have certain requirements on the plant area. If the number of rolling passes is reduced, the dimensional parameters of the busbar will be difficult to ensure. The existing technology has the following defects and shortcomings:

[0004] 1. In order to ensure the size parameters of the wire rod, the cost of the machine increases with the number of rolling times, and the size of the machine is large, which has certain requirements on the layout and area of ​​the plant;

[0005] 2. Only the upper and lower rollers are used for rolling, which can only guarantee the size of the upper and lower surfaces of the wire, but the size of the width direction of the wire is difficult to guarantee;

[0006] 3. The number of rolling times is reduced, the rolling effect is not obvious, and may not meet the requirements, requiring subsequent processing, which increases the number of processes;

[0007] 4. The multi-rolling method is used to ensure the wire material, and the machine length is too long. Summary of the Invention

[0008] The technical problem to be solved by the present invention is: in order to solve the problems existing in the prior art in the above-mentioned background technology, a photovoltaic busbar rolling and drawing integrated production equipment is provided.

[0009] The technical solution adopted by the utility model to solve the technical problem is: a photovoltaic busbar rolling and drawing integrated production equipment, including a frame, a plurality of rolling components are placed side by side at the upper end of the frame, and a plurality of tension components for controlling the tension of the wire are installed at the lower end of the frame;

[0010] A die assembly is installed at the lower right of each rolling assembly, an active transmission wheel is installed at the lower left of each die assembly, and a passive transmission wheel is provided below the active transmission wheel to match it. A reduction motor is installed on the frame, and the active transmission wheel is connected to the reduction motor.

[0011] Furthermore, the rolling assembly includes a transmission motor, a rolling mill head and a gear reduction box, wherein the transmission motor and the gear reduction box are connected through a belt transmission assembly, and the gear reduction box is connected to the input end of each roller in the rolling mill head through a coupling.

[0012] Furthermore, the rolling mill head includes a mounting seat and a servo motor, wherein the servo motor is mounted on the mounting seat, and an upper roller and a lower roller that cooperate with each other are mounted in the mounting seat;

[0013] The output end of the servo motor is equipped with a gear transmission assembly, and the gear transmission assembly is connected to the upper roller through a transmission assembly.

[0014] Furthermore, a nitrogen spring is provided between the upper roller and the lower roller, and connecting flanges are installed at the connecting ends of the upper roller, the lower roller and the coupling.

[0015] Furthermore, the tension assembly includes a cylinder, a bearing seat and an angle sensor, wherein a rack is installed at the protruding end of the cylinder, and the angle sensor and the bearing seat are installed on the frame;

[0016] A rotating shaft is passed through the bearing seat, a gear that cooperates with the rack is installed at one end of the rotating shaft, a rocker arm is installed at the other end of the bearing seat, a tensioning guide wheel is installed at the suspended end of the rocker arm, and the angle sensor and the gear are engaged with each other through gears.

[0017] Furthermore, a waist hole is provided on the mounting end rod surface of the swing rod.

[0018] Furthermore, the mold assembly includes a mold base, which is divided into a horizontal plate and a vertical plate. The vertical plate has a waist-shaped adjustment hole on its surface, and an adjustment screw is installed in the waist-shaped adjustment hole to adjust the angle of the mold base to ensure that the wire passes through the mold vertically;

[0019] A step hole with a notch is provided on the surface of the transverse plate, a mold is installed in the step hole, a pressing plate is pressed on the mold and is installed on the transverse plate by bolts, and a plurality of screw holes are provided on the body of the transverse plate along the length direction.

[0020] Furthermore, the adjustment angle of the waist-shaped adjustment hole is ±13°.

[0021] Furthermore, a small straightener and a guide wheel pay-off assembly are installed at the feed end of the frame, and the guide wheel pay-off assembly is located at the feed end of the small straightener.

[0022] Furthermore, a plurality of guide wheels are installed on the frame.

[0023] Beneficial effects of the utility model:

[0024] 1. Compared with the original technology, the two-rolling and two-drawing process needs to ensure the dimensional accuracy of the busbar while reducing the number of rolling passes. It has certain requirements for rolling accuracy and mold accuracy.

[0025] 2. The two servo motors and two transmission motors need to be linked with the extension and contraction of the cylinder to ensure a faster response speed;

[0026] 3. The integration of two wire production processes into one device requires a high space utilization rate for the equipment. It is also necessary to prevent interference between various components and ensure that the wire can run smoothly without contact with other components to avoid wire wear.

[0027] 4. The wire is processed by the two-rolling and two-drawing method, which can reduce the length of the machine as much as possible while ensuring that the production meets the standards, reduce the floor space and reduce the material cost of the machine itself;

[0028] 5. The rolling process and the drawing process are integrated into one device, and wires of different sizes can be produced by changing the rolling force and die size;

[0029] 6. The wire shape processing is completed through the four processes of "rough rolling → rough drawing → finishing rolling → finishing drawing", which reduces the number of rolling times and eliminates the subsequent drawing process. The two processes are integrated together to improve production efficiency;

[0030] 7. The wire passes through the tension pendulum. If the wire speed is too fast, the pendulum will rise, and if the wire speed is too slow, the pendulum will fall. The angular velocity sensor at the pendulum controls the speed of the motor by the rise and fall of the pendulum. This can accurately control the wire speed and ensure that the wire will not be broken during production.

[0031] 8. The mold is placed in the mold base and fixed by a pressure plate. The mold can be replaced quickly and conveniently, and the mold base has an angle adjustment of ±13°;

[0032] 9. There is a small straightener at the wire inlet to ensure the state of the wire when it enters, and the wire is straightened to ensure the accurate quality of rolling;

[0033] 10. Each drawing die is equipped with a reduction motor to pull the wire to ensure smooth drawing of the wire without breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 It is a structural diagram of the utility model;

[0036] Figure 2 It is a structural diagram of the rolling assembly of the utility model;

[0037] Figure 3 This utility model Figure 2 A top view of

[0038] Figure 4It is a structural diagram of the rolling mill head of the utility model;

[0039] Figure 5 It is a cross-sectional view of the rolling mill head of the utility model;

[0040] Figure 6 This is a schematic structural diagram of the tension assembly of the utility model;

[0041] Figure 7 It is a structural diagram of the mold assembly of the utility model;

[0042] Figure 8 This utility model Figure 7 Structural diagram of the other direction;

[0043] Figure 9 It is an exploded view of the mold assembly of the utility model;

[0044] In the picture: 1. Frame, 2. Small straightener, 3. Guide wheel pay-off assembly,

[0045] 4. Rolling assembly, 41. Drive motor, 42. Rolling mill head, 421. Mounting seat, 422. Servo motor, 423. Upper roller, 424. Lower roller, 425. Gear transmission assembly, 426. Transmission assembly, 427. Nitrogen spring, 428. Connecting flange, 43. Gear reduction box, 44. Belt drive assembly, 45. Coupling,

[0046] 5. Mold assembly, 51. Horizontal plate, 52. Vertical plate, 53. Waist-shaped adjustment hole, 54. Adjustment screw, 55. Step hole, 56. Mold, 57. Press plate, 58. Screw hole,

[0047] 6. Active transmission wheel,

[0048] 7. Tension assembly, 71. Cylinder, 72. Bearing seat, 73. Rack, 74. Gear, 75. Rotating shaft, 76. Rocker, 77. Tensioning guide wheel, 78. Angle sensor, 79. Waist hole,

[0049] 8. Passive transmission wheel, 9. Guide wheel. DETAILED DESCRIPTION

[0050] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0051] like Figures 1 to 9The photovoltaic busbar rolling and drawing integrated production equipment shown in the figure includes a frame 1. A small straightener 2 and a guide wheel pay-off assembly 3 are installed at the feed end of the frame 1. The guide wheel pay-off assembly 3 is located at the feed end of the small straightener 2. The small straightener 2 is used to ensure the state of the wire when it enters and ensure the accuracy of rolling. Several guide wheels 9 are installed on the frame 1.

[0052] Two groups of rolling components 4 are placed side by side at the upper end of the frame 1, and a plurality of tension components 7 for controlling the tension of the wire are installed at the lower end of the frame 1;

[0053] A die assembly 5 is installed at the lower right of each rolling assembly 4, and an active transmission wheel 6 is installed at the lower left of each die assembly 5. A passive transmission wheel 8 cooperating with the active transmission wheel 6 is provided below the active transmission wheel 6. A reduction motor (marked in the figure) is installed on the frame 1. The active transmission wheel 6 is connected to the reduction motor. The reduction motor ensures that the wire is pulled smoothly without breaking.

[0054] In summary, the rolling process and the drawing process are integrated into one machine. The rolling force and the die design can be used to adapt to the busbars of different size parameters. The accuracy of the wire can be guaranteed by precisely controlling the die size parameters and the rolling force of the rolling head. The two-rolling and two-drawing method is adopted to minimize the length of the machine, reduce the plant floor space, and lower the cost. The wire can be formed by two rolling and drawing, which improves efficiency.

[0055] like Figures 2 to 5 As shown, the rolling assembly 4 includes a transmission motor 41, a rolling mill head 42 and a gear reduction box 43. The transmission motor 41 and the gear reduction box 43 are connected through a belt transmission assembly 44, and the gear reduction box 43 is connected to the input end of each roller in the rolling mill head 42 through a coupling 45.

[0056] The rolling mill head 42 includes a mounting base 421 and a servo motor 422 . The servo motor 422 is mounted on the mounting base 421 , and an upper roller 423 and a lower roller 424 that cooperate with each other are mounted in the mounting base 421 .

[0057] A gear transmission assembly 425 is installed at the output end of the servo motor 422 , and the gear transmission assembly 425 is connected to the upper roller 423 via a transmission assembly 426 .

[0058] like Figure 5 As shown, a nitrogen spring 427 is provided between the upper roller 423 and the lower roller 424 , and a connecting flange 428 is installed at the connecting ends of the upper roller 423 , the lower roller 424 and the coupling 45 .

[0059] like Figure 6As shown, the tension assembly 7 includes a cylinder 71, a bearing seat 72 and an angle sensor 78. A rack 73 is installed at the protruding end of the cylinder 71. The angle sensor 78 and the bearing seat 72 are installed on the frame 1.

[0060] A rotating shaft 75 is passed through the bearing seat 72, and a gear 74 that cooperates with the rack 73 is installed at one end of the rotating shaft 75. A rocker arm 76 is installed at the other end of the bearing seat 72. A waist hole 79 is opened on the mounting end rod surface of the rocker arm 76 to adjust the tension of the tensioning wheel 77 on the wire. A tensioning guide wheel 77 is installed at the suspended end of the rocker arm 76, and the angle sensor 78 is arranged with the gear 74 through gear meshing.

[0061] like Figures 7-9 As shown, the mold assembly 5 includes a mold base, which is divided into a horizontal plate 51 and a vertical plate 52. A waist-shaped adjustment hole 53 is opened on the plate surface of the vertical plate 52. The adjustment angle of the waist-shaped adjustment hole 53 is ±13°. An adjustment screw 54 is installed in the waist-shaped adjustment hole 53 to adjust the angle of the mold base to ensure that the wire passes through the mold vertically, so as to eliminate possible processing errors between the main transmission wheel 6 and the mold base during the processing;

[0062] A stepped hole 55 with a notch is provided on the surface of the horizontal plate 51, and a mold 56 is installed in the stepped hole 55. A pressure plate 57 is pressed on the mold 56 and is installed on the horizontal plate 51 by bolts. The pressure plate 57 is used to press the mold 56, so that the mold 56 can be replaced quickly and conveniently. A plurality of screw holes 58 are provided on the body of the horizontal plate 51 along the length direction.

[0063] Working process:

[0064] Step 1: The wire rod is straightened by the small straightener 2 at the front end of the machine and then enters the rolling assembly 4 for a wire rolling process;

[0065] Step 2: Then the wire is passed through the tension assembly 7 and into the die assembly 5. The rolled wire is wrapped around the active transmission wheel 6 and the passive transmission wheel 8 for two to three turns to ensure that the wire will not slip and dry grind during transmission. The wire is then drawn by the power of the active transmission wheel (the wire drawing and drafting process ensures the wire size parameters).

[0066] Step 3: After the first rolling and drawing work is completed, the wire rod enters the second rolling work through the tension assembly 7. The second wire rod processing steps are basically the same as the first wire rod processing steps, so they will not be repeated here.

[0067] Step 4: After completing the two rolling processes and the drawing process, the wire enters the next process (the direction of the cable is as follows Figure 1 shown).

[0068] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A photovoltaic busbar rolling and drawing integrated production equipment, characterized by: The machine comprises a frame (1), wherein a plurality of rolling assemblies (4) are placed side by side at the upper end of the frame (1), and a plurality of tension assemblies (7) for controlling the tension of wire rods are installed at the lower end of the frame (1); A die assembly (5) is installed at the lower right of each rolling assembly (4), an active transmission wheel (6) is installed at the lower left of each die assembly (5), a passive transmission wheel (8) matched with the active transmission wheel (6) is provided below the active transmission wheel (6), a reduction motor is installed on the frame (1), and the active transmission wheel (6) is connected to the reduction motor.

2. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 1, characterized in that: The rolling assembly (4) includes a transmission motor (41), a rolling mill head (42), and a gear reduction box (43). The transmission motor (41) and the gear reduction box (43) are connected via a belt transmission assembly (44). The gear reduction box (43) is connected to the input end of each roller in the rolling mill head (42) via a coupling (45).

3. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 2, characterized in that: The rolling mill head (42) includes a mounting seat (421) and a servo motor (422). The servo motor (422) is mounted on the mounting seat (421), and an upper rolling roller (423) and a lower rolling roller (424) that cooperate with each other are mounted in the mounting seat (421). The output end of the servo motor (422) is provided with a gear transmission assembly (425), and the gear transmission assembly (425) is connected to the upper roller (423) via a transmission assembly (426).

4. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 3, characterized in that: A nitrogen spring (427) is provided between the upper roller (423) and the lower roller (424), and a connecting flange (428) is installed at the connection ends of the upper roller (423), the lower roller (424) and the coupling (45).

5. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 1, characterized in that: The tension assembly (7) includes a cylinder (71), a bearing seat (72) and an angle sensor (78); a rack (73) is installed at the protruding end of the cylinder (71); and the angle sensor (78) and the bearing seat (72) are installed on the frame (1); A rotating shaft (75) is passed through the bearing seat (72), a gear (74) matched with the rack (73) is installed at one end of the rotating shaft (75), a swing rod (76) is installed at the other end of the bearing seat (72), a tensioning guide wheel (77) is installed at the suspended end of the swing rod (76), and the angle sensor (78) and the gear (74) are arranged by gear meshing.

6. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 5, characterized in that: A waist hole (79) is provided on the mounting end rod surface of the swing rod (76).

7. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 1, characterized in that: The mold assembly (5) includes a mold base, which is divided into a horizontal plate (51) and a vertical plate (52). A waist-shaped adjustment hole (53) is opened on the plate surface of the vertical plate (52). An adjustment screw (54) is installed in the waist-shaped adjustment hole (53) to adjust the angle of the mold base to ensure that the wire passes through the mold vertically; A stepped hole (55) with a notch is provided on the surface of the transverse plate (51), a mold (56) is installed in the stepped hole (55), a pressing plate (57) is pressed on the mold (56), and the mold (56) is installed on the transverse plate (51) by bolts, and a plurality of screw holes (58) are provided on the plate body of the transverse plate (51) along the length direction.

8. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 7, characterized in that: The adjustment angle of the waist-shaped adjustment hole (53) is ±13°.

9. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 1, characterized in that: A small straightener (2) and a guide wheel pay-off assembly (3) are installed at the feed end of the frame (1), and the guide wheel pay-off assembly (3) is located at the feed end of the small straightener (2).

10. The photovoltaic busbar rolling and drawing integrated production equipment according to claim 1, characterized in that: A plurality of guide wheels (9) are installed on the frame (1).

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