Photovoltaic solder strip calender

Abstract

The utility model discloses a photovoltaic solder strip calender, relates to the technical field of photovoltaic solder strip production and processing, and solves the problem that a roller sliding block in a calender is unstable in vertical movement. The calendering device comprises at least one calendering device body, the calendering device body comprises a gantry frame, and the left side and the right side of the front side of the gantry frame are each provided with a guide strip extending vertically; the upper roller assembly and the lower roller assembly are fixedly installed on the two fixing plates respectively, the two ends of the fixing plates are connected with the guide strips in an up-down sliding mode through sliding blocks, and the upper roller assembly and the lower roller assembly are each provided with a roller used for rolling the photovoltaic welding strip; and the lifting driving assembly is in driving connection with the upper roller assembly so as to control the upper roller assembly to be close to or away from the lower roller assembly. According to the calender, an existing roller sliding block structure is changed into a linear guide strip for guiding, and the gantry and the sliding block are not matched, so that the machining difficulty is greatly reduced, the machining period is greatly shortened, the assembly specialty is reduced, and the defects of high cost, long period and the like are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic welding band production and processing technical field, especially a photovoltaic welding band calender. BACKGROUND

[0002] The current photovoltaic welding band is made of copper round wire by rolling equipment. The calender is a heavy load precision part, and the processing process of the part is complicated, the processing period is long, the cost is high, and the size and surface finish of the part are required to be extremely high.

[0003] The three core components of the calender are composed of a roller, a portal frame and a roller sliding block. The roller is installed on a rotating shaft, and the rotating shaft is rotatably connected with the roller sliding block. The roller sliding block of the upper roller component can be raised and lowered relative to the portal frame, so as to approach or move away from the lower roller component, and the photovoltaic welding band is rolled. The two sides of the roller sliding block are guided up and down by limiting plates, and the guide parts need to be precisely machined and slowly wire machined, which has a long processing period. The roller sliding block and the portal frame are relatively sliding, so the cooperation precision of the portal frame and the roller sliding block is required to be high, the processing is complex, the installation is difficult, the disassembly and maintenance are difficult, and professional personnel are required to operate. Because the cooperation precision is high, the equipment may work normally in winter, but in summer, the material may be stuck due to thermal expansion and cold shrinkage, so that the roller sliding block is easily stuck and cannot smoothly slide up and down during sliding. SUMMARY

[0004] The utility model aims at solving the above problems, and designs a photovoltaic welding band calender, which solves the problem of unstable up-down movement of the roller sliding block in the calender.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is a photovoltaic welding band calender, which comprises at least one calendering device, and the calendering device comprises:

[0006] A portal frame has an active space in the middle, which can be used for the up-down movement of the calendering component. The left and right sides of the portal frame are respectively provided with an avoiding hole for the photovoltaic welding band to pass in from one side and out from the other side. The left and right sides of the front side of the portal frame are provided with a vertical guide strip.

[0007] An upper roller assembly and a lower roller assembly are movably arranged in the active space and are respectively fixedly installed on two fixed plates. The two ends of the fixed plate are connected with the guide strip through a sliding block. The upper roller assembly and the lower roller assembly each have a roller for rolling the photovoltaic welding band.

[0008] A lifting driving assembly is drivingly connected with the upper roller assembly to control the upper roller assembly to approach or move away from the lower roller assembly.

[0009] Preferably, the upper roller assembly and the lower roller assembly are identical in structure.

[0010] Preferably, the front side and the rear side of the portal frame are each provided with two guide bars extending upward and downward, and the two guide bars are fixedly installed on the left and right sides of the portal frame.

[0011] Preferably, the portal frame has a groove extending upward and downward, the guide bar is fixedly installed in the groove, and the upper and lower ends of the guide bar abut against the top wall and the bottom wall of the groove, respectively, and the groove is used to prevent the sliding block from sliding out of the guide bar.

[0012] Preferably, the upper roller assembly includes two fixed blocks, a rotating shaft rotatably connected with the two fixed blocks, a roller installed on the rotating shaft, and a servo driving mechanism for driving the rotating shaft to rotate, the roller is located between the two fixed blocks, the front side and the rear side of the portal frame are each provided with a fixed plate, the two fixed blocks are fixedly installed on the two fixed plates, respectively, and the lifting driving assembly is drivingly connected with the fixed blocks.

[0013] Preferably, the feeding side of the portal frame is provided with a first guide wheel assembly, the first guide wheel assembly is fixedly installed on a first stand, the first guide wheel assembly has a plurality of guide wheels, which are used to eliminate the stress of the photovoltaic welding strip and guide the photovoltaic welding strip into the space between the two rollers.

[0014] Preferably, the discharging side of the portal frame is provided with a diameter measuring mechanism for detecting the size of the rolled photovoltaic welding strip, the diameter measuring mechanism includes two diameter measuring instruments, the two diameter measuring instruments are distributed upward and downward, and a second guide wheel assembly is arranged between the two diameter measuring instruments, the second guide wheel assembly includes three guide wheels, one of which is located in the activity space and close to the roller, and the other two are located between the two diameter measuring instruments and are appropriately apart from each other, so as to guide the rolled photovoltaic welding strip to be exposed to the field of view of the two diameter measuring instruments.

[0015] Preferably, the diameter measuring mechanism is fixedly installed on a second stand, the second stand is further provided with a reversing wheel assembly and a tension adjusting assembly, the reversing wheel assembly includes two reversing wheels, the tension adjusting assembly includes a swingable swing rod and a tension wheel rotatably connected with the swing rod, the tension wheel is located below the reversing wheels and between the two reversing wheels,

[0016] Preferably, it further includes a rack, and the rack is provided with two calender devices distributed upward and downward.

[0017] Preferably, the calendering device further comprises a position adjusting mechanism, the gantry frame is fixedly installed on a base, the base is horizontally slidably connected with a guide rail fixed on a rack through a sliding block, and the position adjusting mechanism is drivingly connected with the bottom of the base.

[0018] Compared with the prior art, the calendering device has the beneficial effects that:

[0019] In the calendering machine, the upper roller assembly is fixedly installed on the fixed plate, the fixed plate is slidably connected with the guide strip fixed on the gantry frame through the sliding block, and then the upper roller assembly is driven to move up and down by the lifting driving assembly, the two rollers of the upper roller assembly and the lower roller assembly roll the photovoltaic welding strip, so that the upper roller assembly does not contact the gantry frame, and the stable up-and-down movement of the upper roller assembly is not affected by thermal expansion and cold shrinkage. The calendering machine changes the existing roller sliding block structure into a linear guide strip for guidance, and there is no matching relationship between the gantry and the sliding block, so that the processing difficulty and cycle are greatly reduced, the assembly professionalism is reduced, and the defects of high cost and long cycle are solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic diagram of the calendering machine in the utility model;

[0021] Figure 2 is the structure schematic diagram of the calendering device in the calendering machine;

[0022] Figure 3 is the structure schematic diagram of the calendering device when the shield is separated;

[0023] Figure 4 is the structure schematic diagram of the gantry frame in the calendering device;

[0024] Figure 5 is the structure schematic diagram of the upper roller assembly in the calendering device;

[0025] Figure 6 is the structure schematic diagram of the first guide wheel assembly;

[0026] Figure 7 is the installation structure schematic diagram of the second guide wheel assembly, the diameter measuring mechanism, the reversing wheel assembly and the tension adjusting assembly;

[0027] Figure 8 is the schematic diagram of the photovoltaic welding strip when passing through the calendering device.

[0028] In the figure, 201, rack; 202, calender device; 2021, gantry frame; 20211, movable space; 20212, avoiding hole; 20213, groove; 2022, base; 2023, position adjusting mechanism; 2024, upper roller assembly; 20241, rotating shaft; 20242, roller; 20243, servo driving mechanism; 20244, fixed block; 2025, lower roller assembly; 2026, lifting driving assembly; 20261, servo motor; 20262, transmission rod; 20263, transmission wheel; 20264, lead screw; 20265, pawl; 20266, shroud; 2027, fixed plate; 2028, guide bar; 2029, sliding block; 203, first guide wheel assembly; 2031, support plate; 2032, guide wheel; 204, reversing wheel assembly; 2041, support plate; 2042, reversing wheel; 205, tension adjusting assembly; 2051, swing lever; 2052, tension wheel; 206, first stand; 207, second stand; 208, diameter measuring mechanism; 2081, diameter measuring instrument; 209, second guide wheel assembly; 2091, support; 2092, guide wheel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] As Figures 1-3 shown in a preferred embodiment of the utility model, a kind of photovoltaic welding strip calender is provided, which mainly includes rack 201 and two calender devices 202 installed on rack 201, to realize double-station photovoltaic welding strip rolling production.Rack 201 is divided into upper and lower two layers, and two calender devices 202 are distributed in the two layers of rack 201 in an up-down manner, and the structure of each calender device 202 is the same.

[0031] Specifically, referring to Figure 2 , Figure 3 , calender device 202 is mainly composed of base 2022, gantry frame 2021, position adjusting mechanism 2023, upper roller assembly 2024, lower roller assembly 2025 and lifting driving assembly 2026, wherein base 2022 is horizontally slidably connected with guide rail fixed on rack 201 through sliding block 2029, gantry frame 2021 is vertically fixed and installed on base 2022, upper roller assembly 2024 and lower roller assembly 2025 are distributed in an up-down manner and are both installed on gantry frame 2021, and lifting driving assembly 2026 is drivingly connected with upper roller assembly 2024 for controlling upper roller assembly 2024 to approach or move away from lower roller assembly 2025.

[0032] The position adjusting mechanism 2023 is used to drive the base 2022 to move horizontally, so as to adjust the horizontal positions of the upper roller assembly 2024 and the lower roller assembly 2025. The position adjusting mechanism 2023 adopts a servo motor 20261-screw rod 20264 drive the base 2022 to move horizontally relative to the rack 201.

[0033] As shown in Figure 4 , the middle of the gantry frame 2021 is through from front to back, and a moving space 20211 for the upper roller assembly 2024 to move up and down is formed in the middle. The lower roller assembly 2025 is also located in the moving space 20211.

[0034] The upper roller assembly 2024 and the lower roller assembly 2025 have the same structure.

[0035] As shown in Figure 3 , Figure 5 , the upper roller assembly 2024 mainly consists of a rotating shaft 20241, a roller 20242, a servo driving mechanism 20243 and two fixed blocks 20244. The rotating shaft 20241 is rotatably connected with the two fixed blocks 20244, the roller 20242 is installed on the rotating shaft 20241 and located between the two fixed blocks 20244, and the servo driving mechanism 20243 is installed on the fixed plate 2027 at the rear side of the gantry frame 2021 and is in transmission connection with one end of the rotating shaft 20241 to control the rotation of the rotating shaft 20241 and thus drive the roller 20242 to rotate.

[0036] A guide strip 2028 is arranged on each of the left and right sides of the front and rear sides of the gantry frame 2021. A groove 20213 is formed on the corresponding position of the gantry frame 2021, which extends upward and downward, and the guide strip 2028 is vertically fixed in the groove 20213. The upper and lower ends of the guide strip 2028 abut against the top wall and the bottom wall of the groove 20213 to limit the upward and downward sliding positions of the sliding block 2029 and prevent the sliding block 2029 from sliding out of the guide strip 2028. The guide strip 2028 is a guide rail.

[0037] Two fixed plates 2027 are arranged on each of the front and rear sides of the gantry frame 2021, corresponding to the upper roller assembly 2024 and the lower roller assembly 2025 respectively. The two fixed blocks 20244 are fixedly installed on the corresponding two fixed plates 2027 respectively, and the fixed plates 2027 are in upward and downward sliding connection with the guide strips 2028 through the sliding blocks 2029. The left and right sides of the fixed blocks 20244 do not contact with the gantry frame 2021, so there is no need to worry about the influence of thermal expansion and contraction.

[0038] The bottom wall of the groove 20213 can support the lower roller assembly 2025, and the upper roller assembly 2024 can be driven to move downward by the lifting driving mechanism to approach the lower roller assembly 2025. The photovoltaic solder strip can pass between the two rollers 20242, and the photovoltaic solder strip is rolled by the two rollers 20242.

[0039] As shown in Figure 3 , the lifting driving assembly 2026 mainly comprises a servo motor 20261, two lead screws 20264, two transmission wheels 20263 and two transmission rods 20262. The two transmission rods 20262 are connected by a shaft coupling to form a long rod, and the two ends of the long rod are rotatably connected to two bearing seats through bearings.

[0040] Threaded grooves are arranged on each transmission rod 20262, and the transmission wheel 20263 is a gear that meshes with the threaded grooves on the transmission rod 20262. The two lead screws 20264 correspond to the two fixed blocks 20244 of the upper roller assembly 2024 and are in transmission connection with the two fixed blocks 20244. The upper ends of the two transmission wheels 20263 are fixedly installed on the upper ends of the two lead screws 20264 and mesh with the corresponding transmission rods 20262.

[0041] The output end of the servo motor 20261 is in transmission connection with one of the transmission rods 20262 through a synchronous belt. When the servo motor 20261 rotates, it drives the two transmission rods 20262 to rotate, and under the cooperation of the threaded grooves, it drives the two transmission wheels 20263 to rotate, and then drives the two lead screws 20264 to rotate, thereby driving the upper roller assembly 2024 to move up and down.

[0042] A knob 20265 is connected to each transmission rod 20262, and the transmission rod 20262 can also be rotated by manually rotating the knob 20265, so as to finally adjust the height of the upper roller assembly 2024.

[0043] Referring to Figure 2 , Figure 3 , a shroud 20266 is arranged outside the lifting driving assembly 2026 to protect the internal structure and prevent external debris from entering between the gear and the transmission rod 20262 to affect the transmission.

[0044] As shown in Figure 4 , the gantry frame 2021 has a rectangular avoidance hole 20212 on each of the left and right sides, and the photovoltaic solder strip enters between the two rollers 20242 from one side of the gantry frame 2021 and then passes out from the other side.

[0045] As shown in Figure 2As shown, a first guide wheel assembly 203 is arranged on the left side of the gantry frame 2021, and the first guide wheel assembly 203 is fixedly installed on a first vertical seat 206, and the first vertical seat 206 is vertically fixed on the rack 201. Referring to Figure 6 , the first guide wheel assembly 203 is composed of a support plate 2031 and a plurality of guide wheels 2032, one end of the support plate 2031 extends into the activity space 20211 and is close to the area between the two rollers 20242. A plurality of guide wheels 2032 are distributed along the length direction of the support plate 2031, one of which is located on the support plate 2031 close to one end of the roller 20242, and the photovoltaic solder strip sequentially passes through the plurality of guide wheels 2032 and then enters between the two rollers 20242. The guide wheel 2032 helps to eliminate the stress of the photovoltaic solder strip and guide the photovoltaic solder strip into the two rollers 20242, and the two rollers 20242 are used for rolling.

[0046] In this embodiment, the outer circumferential surface of the two rollers 20242 is curved, which is used for rolling the photovoltaic solder strip with a circular cross-sectional shape into a flat shape. In other technical solutions, special-shaped grooves can also be arranged on the outer circumferential surface of the roller 20242, so as to roll the photovoltaic solder strip into a specific shape, such as a triangular cross-sectional shape, a square cross-sectional shape, etc., which is not limited.

[0047] As shown in Figure 2 , Figure 7 , a diameter measuring mechanism 208 (not shown in Figure 2 , refer to Figure 7 ), a second guide wheel assembly 209 (not shown in Figure 2 , refer to Figure 7 ), a reversing wheel assembly 204 and a tension adjusting assembly 205 are arranged on the right side of the gantry frame 2021, and the three are fixedly installed on a second vertical seat 207, and the second vertical seat 207 is vertically fixed on the rack 201.

[0048] Referring to Figure 7 , the diameter measuring mechanism 208 includes two diameter measuring instruments 2081, which are symmetrically distributed above and below and have a certain gap between them. The second guide wheel assembly 209 is located between the two diameter measuring instruments 2081, and the second guide wheel assembly 209 is composed of a support 2091 and three guide wheels 2032, and the three guide wheels 2032 are all rotatably connected to the support 2091, two of which are located between the two diameter measuring instruments 2081 and are a certain distance apart. The other guide wheel 2032 is located in the activity space 20211 and is close to the roller 20242. The rolled photovoltaic solder strip will sequentially pass through the other two guide wheels 2032 under the guidance of the guide wheel 2032, and then pass through the reversing wheel assembly 204 and the tension adjusting assembly 205.

[0049] AsFigure 8 As shown, the photovoltaic welding strip passes through the first guide wheel assembly 203, then passes between the two rollers 20242, and is guided into between the two diameter gauges 2081 by the second guide wheel assembly 209. After passing between the two guide wheels 2032 between the two diameter gauges 2081, the photovoltaic welding strip is taut so as to be detected by the diameter gauges 2081 to detect the cross-sectional size of the rolled photovoltaic welding strip.

[0050] Reference Figure 7 The reversing wheel assembly 204 is composed of a support plate 2041 and two reversing wheels 2042, the support plate 2041 is horizontally fixed on the second stand 207, and the two reversing wheels 2042 are rotationally connected to the support plate 2041. The tension adjusting assembly 205 is located below the reversing wheel assembly 204 and is mainly composed of a swing lever 2051 and a tension wheel 2052, the tension wheel 2052 is rotationally connected to one end of the swing lever 2051, the swing lever 2051 has one end of the tension wheel 2052 that can swing up and down, and the tension wheel 2052 is located below the reversing wheel 2042 and between the two reversing wheels 2042.

[0051] Continue to refer to Figure 8 The photovoltaic welding strip passing between the two diameter gauges 2081 passes through the reversing wheel 2042 on the left side, wraps around the tension wheel 2052 below after reversing, and then passes through the other reversing wheel 2042 upwards. Since the swing lever 2051 can swing up and down, the tension of the photovoltaic welding strip can be adjusted, and the photovoltaic welding strip can be buffered at the same time.

[0052] The above technical solution only embodies the preferred technical solution of the technical solution of the present application, and some changes made by the person skilled in the art to some parts thereof all embody the principles of the present application and are within the protection scope of the present application.

Claims

1. Photovoltaic solder strip calender comprising at least one calendering device (202), characterized in that, The calendering device (202) comprises: A gantry frame (2021) having a movable space (20211) in the middle for the up-and-down movement of a calendering component, and having an avoidance hole (20212) on the left and right sides for the photovoltaic welding strip to pass from one side to the other side, and the left and right sides of the front side of the gantry frame (2021) are provided with a vertically extending guide strip (2028); An upper roller assembly (2024) and a lower roller assembly (2025) movably arranged in the movable space (20211) and fixedly installed on two fixed plates (2027), the two ends of the fixed plate (2027) are connected with the guide strip (2028) through a sliding block (2029), and the upper roller assembly (2024) and the lower roller assembly (2025) each have a roller (20242) for rolling the photovoltaic welding strip; A lifting drive assembly (2026) drivingly connected with the upper roller assembly (2024) to control the upper roller assembly (2024) to approach or move away from the lower roller assembly (2025).

2. A photovoltaic ribbon calender as defined in claim 1, wherein, The upper roller assembly (2024) and the lower roller assembly (2025) are identical in structure.

3. A photovoltaic ribbon calender as defined in claim 1, wherein, The front side and the rear side of the gantry frame (2021) are each provided with two vertically extending guide strips (2028), and the two guide strips (2028) are fixedly installed on the left and right sides of the gantry frame (2021).

4. A photovoltaic ribbon calender as defined in claim 3, wherein, The gantry frame (2021) has a vertically extending groove (20213) on the top, and the guide strip (2028) is fixedly installed in the groove (20213), and the upper and lower ends of the guide strip (2028) are respectively in abutment with the top wall and the bottom wall of the groove (20213), and the groove (20213) is used for preventing the sliding block (2029) from sliding out of the guide strip (2028).

5. A photovoltaic ribbon calender as defined in claim 3, wherein, The upper roller assembly (2024) comprises two fixed blocks (20244), a rotating shaft (20241) rotatably connected with the two fixed blocks (20244), a roller (20242) installed on the rotating shaft (20241), and a servo drive mechanism (20243) for driving the rotating shaft (20241) to rotate, the roller (20242) is located between the two fixed blocks (20244), the front side and the rear side of the gantry frame (2021) are each provided with a fixed plate (2027), and the two fixed blocks (20244) are fixedly installed on the two fixed plates (2027), and the lifting drive assembly (2026) is drivingly connected with the fixed blocks (20244).

6. A photovoltaic ribbon calender as defined in claim 1, wherein, The feeding side of the gantry frame (2021) is provided with a first guide wheel assembly (203), the first guide wheel assembly (203) is fixedly installed on a first stand (206), and a plurality of guide wheels (2032) are arranged on the first guide wheel assembly (203) and used for eliminating the stress of the photovoltaic welding strip and guiding the photovoltaic welding strip into the two rollers (20242).

7. A photovoltaic ribbon calender as defined in claim 1, wherein, The discharging side of the gantry frame (2021) is provided with a diameter measuring mechanism (208) for detecting the size of the rolled photovoltaic welding strip, the diameter measuring mechanism (208) comprises two diameter measuring instruments (2081), the two diameter measuring instruments (2081) are arranged in an up-down distribution, and a second guide wheel assembly (209) is arranged between the two diameter measuring instruments (2081), the second guide wheel assembly (209) comprises three guide wheels (2092), one of the guide wheels (2092) is located in the activity space (20211) and close to the roller (20242), and the other two guide wheels (2092) are located between the two diameter measuring instruments (2081) and are appropriately apart from each other, so that the rolled photovoltaic welding strip is guided to be exposed to the field of view of the two diameter measuring instruments (2081).

8. A photovoltaic ribbon calender as defined in claim 7, wherein, The diameter measuring mechanism (208) is fixedly installed on a second stand (207), the second stand (207) is further provided with a reversing wheel assembly (204) and a tension adjusting assembly (205), the reversing wheel assembly (204) comprises two reversing wheels (2042), the tension adjusting assembly (205) comprises a swingable swing rod (2051) and a tension wheel (2052) rotatably connected to the swing rod (2051), and the tension wheel (2052) is located below the reversing wheel (2042) and between the two reversing wheels (2042).

9. A photovoltaic ribbon calender as defined in claim 1, wherein, Further comprising a rack (201), the rack (201) is provided with two calendering devices (202) arranged in an up-down distribution.

10. A photovoltaic ribbon calender as defined in claim 9, wherein, The calendering device (202) further comprises a position adjusting mechanism (2023), the gantry frame (2021) is fixedly installed on a base (2022), the base (2022) is horizontally slidably connected to a guide rail fixedly installed on the rack (201) through a sliding block (2029), and the position adjusting mechanism (2023) is drivingly connected to the bottom of the base (2022).

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