Photovoltaic solder strip calendering device

Abstract

The utility model relates to a kind of photovoltaic welding strip calendering device, including rack, calender roll assembly and pitch adjusting mechanism, calender roll assembly includes mutually matched upper calender roll assembly and lower calender roll assembly, pitch adjusting mechanism includes manual adjusting unit and automatic adjusting unit, by using above-mentioned technical scheme, upper calender roll assembly and lower calender roll assembly mutually cooperate, act jointly on photovoltaic welding strip, to ensure the calendering effect of photovoltaic welding strip, manual adjusting unit can be in the equipment debugging stage or when needing fine adjustment, the interval of upper and lower calender roll assembly is adjusted by staff, and the self-locking function of manual adjusting unit can be automatically locked position after adjusting in place, avoid accidental loosening influence calendering quality, automatic adjusting unit can be in production process, real-time sensing and automatically adjusting the interval of upper and lower calender roll assembly, so it can effectively respond to various fluctuations in production, ensure product consistency, to improve the production efficiency and product quality of photovoltaic welding strip.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic welding strip technology, and in particular to a photovoltaic welding strip rolling device. Background Technology

[0002] In the current booming development of the photovoltaic industry, photovoltaic ribbon is a key connecting component of solar cell modules. Its quality directly affects the photoelectric conversion efficiency and service life of the modules. The calendering process is an important step in the production of photovoltaic ribbon, which plays a decisive role in parameters such as the thickness and flatness of the ribbon.

[0003] However, most existing photovoltaic ribbon calendering devices only have a single adjustment method, making it difficult to make precise spacing adjustments during equipment debugging. This leads to inaccurate initial settings, affecting the quality of subsequent production. Moreover, during the production process, in the face of fluctuations such as raw material differences and equipment vibration, the calendering roller spacing cannot be automatically adjusted in a timely manner, which can easily cause unstable ribbon quality and uneven thickness. Therefore, it is necessary to design a photovoltaic ribbon calendering device. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic ribbon rolling device to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A photovoltaic strip rolling apparatus includes a frame and further includes:

[0007] A calendering roll assembly, which is disposed inside the frame, includes an upper calendering roll assembly and a lower calendering roll assembly that cooperate with each other;

[0008] The machine includes a spacing adjustment mechanism, which is located on the top of the frame. The spacing adjustment mechanism includes a manual adjustment unit and an automatic adjustment unit. The manual adjustment unit is used for equipment debugging or fine adjustment of the spacing between the upper and lower calendering roll assemblies. The automatic adjustment unit is used to automatically adjust and maintain the spacing between the upper and lower calendering roll assemblies during production.

[0009] By adopting the above technical solution, the upper and lower calendering roll assemblies in the calendering roll assembly cooperate with each other to work together on the photovoltaic welding strip, thereby ensuring the calendering effect of the photovoltaic welding strip. The manual adjustment unit can facilitate the staff to adjust the distance between the upper and lower calendering roll assemblies during the equipment debugging stage or when fine adjustments are needed. Moreover, the self-locking function of the manual adjustment unit can automatically lock the position after adjustment to avoid accidental loosening affecting the calendering quality. The automatic adjustment unit can sense and automatically adjust the distance between the upper and lower calendering roll assemblies in real time during the production process, thereby effectively coping with various fluctuations in production, ensuring product consistency, and thus improving the production efficiency and product quality of photovoltaic welding strip.

[0010] In a further embodiment, the manual adjustment unit includes a first bearing housing, a second bearing housing, a coupling, a first worm, a second worm, a first worm wheel, a second worm wheel, a first pulley, and a handwheel. The first and second worm wheels are spaced apart and are located at the top of the frame. The first and second bearing housings are symmetrically arranged at the top of the frame. The front end of the first worm passes through and extends to the front of the first bearing housing. The rear end of the first worm is fixedly connected to the front end of the coupling. The rear end of the coupling is fixedly connected to the front end of the second worm. The rear end of the second worm passes through the second bearing housing. The handwheel is fixedly installed at the front end of the first worm. The first worm meshes with the first worm wheel, and the second worm meshes with the second worm wheel.

[0011] By adopting the above technical solution, during operation, rotating the handwheel fixed at the front end of the first worm causes the first worm to rotate, which in turn drives the second worm to rotate synchronously through the coupling. Since the first worm meshes with the first worm wheel and the second worm meshes with the second worm wheel, the distance between the upper and lower calendering roll assemblies can be adjusted. Furthermore, the worm gear transmission has a self-locking characteristic, automatically locking the position after adjustment to prevent changes in distance due to vibration or external force. This effectively improves the accuracy and reliability of equipment debugging and fine-tuning, achieving the goal of ensuring the calendering quality of photovoltaic welding strips.

[0012] In a further embodiment, the automatic adjustment unit includes a servo motor, a transmission belt, and a second pulley. The servo motor is fixedly mounted on the top of the frame, and the output shaft of the servo motor is located at the rear end of the servo motor body. The second pulley is sleeved on the output shaft of the servo motor, and the transmission belt is used to connect the first pulley and the second pulley.

[0013] By adopting the above technical solution, the servo motor starts, and the output shaft of the servo motor drives the second pulley to rotate. The power is transmitted to the first pulley through the transmission belt, and then the first worm and the second worm drive the rotation of the first worm wheel and the second worm wheel through the second worm and the first worm, so as to realize the automatic adjustment of the distance between the upper calendering roll assembly and the lower calendering roll assembly.

[0014] In a further embodiment, the lower calendering roll assembly includes a first housing and a lower roller. The top of the first housing is a completely open structure. The first housing is fixedly installed at the inner bottom of the frame. The lower roller is rotatably installed inside the first housing. The top of the lower roller is higher than the top of the first housing. Support plates that are close to each other extend from the front and rear sides of the top of the first housing.

[0015] In a further embodiment, the upper calendering roll assembly includes a second housing, an upper pressure roll, a return spring, and a support rod. Two return springs and two support rods are provided, symmetrically arranged front and rear on the top of the support plate. The bottom of the second housing is a completely open structure. Extension plates extend close to each other from both the front and rear sides of the bottom of the second housing. The second housing is fixedly mounted on the top of the return springs. The upper pressure roll is rotatably mounted inside the second housing. The upper and lower pressure rolls are spaced apart on the top of the second housing. The top of the support rod is threaded, passing through and extending to the top of the frame. The support rod and the frame are threadedly connected. The first worm gear is fixedly mounted on the top of the support rod located at the front end of the frame, and the second worm gear is fixedly mounted on the top of the support rod located at the rear end of the frame.

[0016] By adopting the above technical solution, in the lower calendering roll assembly, the top of the first outer shell is completely open and fixed to the inner bottom of the frame. The support plate can provide stable support for the upper calendering roll assembly. In the upper calendering roll assembly, two return springs are symmetrically arranged on the top of the support plate, which can provide elastic buffer for the upper pressure roll, ensuring close contact with the lower pressure roll while avoiding excessive compression. The top of the support rod is threaded, passes through the top of the frame and is threaded to the frame. By rotating the worm gear through the manual adjustment unit, the support rod and the second outer shell can be moved up and down, thereby adjusting the distance between the upper and lower pressure rolls.

[0017] In a further embodiment, the thickness of the first worm wheel is greater than the maximum diameter of the first worm, and the thickness of the second worm wheel is greater than the maximum diameter of the second worm wheel.

[0018] By adopting the above technical solution, the first worm wheel and the first worm / the second worm wheel and the second worm can have a more sufficient contact area. When the round rod makes a slight movement within a certain range, the meshing effect between the first worm wheel and the first worm / the second worm wheel and the second worm will not be affected.

[0019] In a further embodiment, a diameter gauge is provided on the right side of the frame, which is used to detect the thickness of the photovoltaic ribbon after rolling.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. By cooperating with each other in the upper and lower calendering roll assembly, the photovoltaic welding strip can be effectively calendered. The manual adjustment unit allows operators to easily adjust the distance between the upper and lower calendering roll assemblies during equipment commissioning or when fine-tuning is required. The self-locking function of the manual adjustment unit automatically locks the position after adjustment to prevent accidental loosening from affecting the calendering quality. The automatic adjustment unit can sense and automatically adjust the distance between the upper and lower calendering roll assemblies in real time during production, effectively responding to various fluctuations in production, ensuring product consistency, and improving the production efficiency and product quality of photovoltaic welding strips. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the structure of the photovoltaic ribbon rolling device;

[0023] Figure 2 This is a structural schematic diagram illustrating the calendering roll assembly of this utility model.

[0024] In the figure, 1 is the frame; 2 is the calendering roll assembly; 21 is the upper calendering roll assembly; 22 is the lower calendering roll assembly; 3 is the spacing adjustment mechanism; 31 is the manual adjustment unit; 32 is the automatic adjustment unit; and 4 is the diameter measuring instrument. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0027] Example 1:

[0028] like Figures 1-2 As shown, a photovoltaic welding strip calendering device includes a frame 1, a calendering roll assembly 2, and a spacing adjustment mechanism 3. The calendering roll assembly 2 is disposed inside the frame 1 and includes an upper calendering roll assembly 22 and a lower calendering roll assembly 22 that cooperate with each other. The spacing adjustment mechanism 3 is disposed on the top of the frame 1 and includes a manual adjustment unit 31 and an automatic adjustment unit 32. The manual adjustment unit 31 is used for equipment debugging or fine adjustment of the spacing between the upper calendering roll assembly 21 and the lower calendering roll assembly 22. The automatic adjustment unit 32 is used to automatically adjust and maintain the spacing between the upper calendering roll assembly 22 and the lower calendering roll assembly 21 during the production process.

[0029] The manual adjustment unit 31 includes a first bearing housing, a second bearing housing, a coupling, a first worm, a second worm, a first worm wheel, a second worm wheel, a first pulley, and a handwheel. The first and second worm wheels are spaced apart and are located on the top of the frame 1. The first and second bearing housings are symmetrically arranged on the top of the frame 1. The front end of the first worm passes through and extends to the front of the first bearing housing. The rear end of the first worm is fixedly connected to the front end of the coupling. The rear end of the coupling is fixedly connected to the front end of the second worm. The rear end of the second worm passes through the second bearing housing. Inside the bearing housing, a handwheel is fixedly installed at the front end of the first worm gear, which meshes with the first worm wheel, and the second worm gear meshes with the second worm wheel. The automatic adjustment unit 32 includes a servo motor, a transmission belt, and a second pulley. The servo motor is fixedly installed on the top of the frame 1, with its output shaft located at the rear end of the servo motor body. The second pulley is sleeved on the output shaft of the servo motor, and the transmission belt connects the first pulley and the second pulley. The lower calendering roller assembly 22 includes a first housing and a lower pressure roller. The top of the first housing is a completely open structure. The first housing is fixedly installed at the bottom of the frame 1, and the lower pressure roller is rotatably installed inside the first housing. The top of the lower pressure roller is higher than the top of the first housing. Support plates extend close to each other on both the front and rear sides of the top of the first housing. The upper calendering roller assembly 21 includes a second housing, an upper pressure roller, a return spring, and support rods. Two return springs and two support rods are provided. The two return springs are symmetrically arranged on the top of the support plates. The bottom of the second housing is a completely open structure. Extension plates extend close to each other on both the front and rear sides of the bottom of the second housing. The second housing is fixedly installed on the top of the return springs. The upper pressure roller rotates... The support rod is installed inside the second housing and spaced at the top of the second housing. The top of the support rod is threaded and extends through and to the top of the frame 1. The support rod and the frame 1 are threaded together. The first worm gear is fixedly installed on the top of the support rod located at the front end of the frame 1, and the second worm gear is fixedly installed on the top of the support rod located at the rear end of the frame 1. The thickness of the first worm gear is greater than the maximum diameter of the first worm, and the thickness of the second worm gear is greater than the maximum diameter of the second worm gear. A diameter gauge 4 is provided on the right side of the frame 1. The diameter gauge 4 is used to detect the thickness of the photovoltaic strip after rolling.

[0030] Specific implementation process: When the photovoltaic welding strip calendering device is working, the equipment is first debugged. The operator rotates the handwheel fixed at the front end of the first worm, and the first worm rotates accordingly. Through the coupling, it drives the second worm to rotate synchronously. Since the first worm meshes with the first worm wheel and the second worm meshes with the second worm wheel, and the first worm wheel is fixedly installed on the top of the support rod located at the front end of the frame, and the second worm wheel is fixedly installed on the top of the support rod located at the rear end of the frame, and the top of the support rod is threaded and passes through the top of the frame and is threadedly connected to the frame, the rotation of the handwheel can drive the support rod and the second outer shell to move up and down, thereby adjusting the distance between the upper calendering roller assembly and the lower calendering roller assembly to meet the calendering requirements of photovoltaic welding strips of different specifications. Moreover, the worm gear transmission has a self-locking characteristic, and can automatically lock the position after adjustment to avoid changes in the distance due to vibration or external force. After debugging, the photovoltaic welding strip is fed into the device, and the first outer shell of the lower calendering roller assembly is fixed to the inner bottom of the frame. The upper and lower calendering rollers are rotatably mounted inside the upper calendering roller assembly, with their tops higher than the tops of the first outer shell. Two return springs of the upper calendering roller assembly are symmetrically arranged on the top of the support plate, providing elastic cushioning for the upper calendering roller. This ensures a tight fit between the upper and lower calendering rollers while preventing excessive compression. The upper and lower calendering roller assemblies work together to calender the photovoltaic strip. During production, the output shaft of the servo motor drives the second pulley to rotate, transmitting power to the first pulley via a transmission belt. This power, in turn, drives the first and second worm gears to rotate through the second and first worm gears, automatically adjusting the distance between the upper and lower calendering roller assemblies to cope with various fluctuations in production. During calendering, a diameter gauge on the right side of the frame monitors the thickness of the calendered photovoltaic strip in real time and feeds the data back to the control system for timely adjustment of calendering parameters, ensuring product consistency and improving the production efficiency and quality of the photovoltaic strip.

[0031] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0032] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A photovoltaic strip rolling apparatus, comprising a frame (1), characterized in that, Also includes: Calendering roll assembly (2), the calendering roll assembly (2) is disposed inside the frame (1), the calendering roll assembly (2) includes an upper calendering roll assembly (21) and a lower calendering roll assembly (22) that cooperate with each other; And a spacing adjustment mechanism (3), the spacing adjustment mechanism (3) is set on the top of the frame (1), the spacing adjustment mechanism (3) includes a manual adjustment unit (31) and an automatic adjustment unit (32), the manual adjustment unit (31) is used for equipment debugging or fine adjustment of the spacing between the upper calendering roll assembly (21) and the lower calendering roll assembly (22), and the automatic adjustment unit (32) is used to automatically adjust and maintain the roll spacing during the production process.

2. The photovoltaic strip rolling apparatus according to claim 1, characterized in that: The manual adjustment unit (31) includes a first bearing seat, a second bearing seat, a coupling, a first worm, a second worm, a first worm wheel, a second worm wheel, a first pulley, and a handwheel. The first worm wheel and the second worm wheel are spaced apart and are located at the top of the frame (1). The first bearing seat and the second bearing seat are symmetrically arranged at the top of the frame (1). The front end of the first worm passes through and extends to the front of the first bearing seat. The rear end of the first worm is fixedly connected to the front end of the coupling. The rear end of the coupling is fixedly connected to the front end of the second worm. The rear end of the second worm passes through the second bearing seat. The handwheel is fixedly installed at the front end of the first worm. The first worm and the first worm wheel mesh, and the second worm and the second worm wheel mesh.

3. The photovoltaic strip rolling apparatus according to claim 2, characterized in that: The automatic adjustment unit (32) includes a servo motor, a transmission belt, and a second pulley. The servo motor is fixedly installed on the top of the frame (1). The output shaft of the servo motor is located at the rear end of the servo motor body. The second pulley is sleeved on the output shaft of the servo motor. The transmission belt is used to connect the first pulley and the second pulley.

4. The photovoltaic strip rolling apparatus according to claim 1, characterized in that: The lower pressure roll assembly (22) includes a first housing and a lower pressure roll. The top of the first housing is a completely open structure. The first housing is fixedly installed at the bottom of the frame (1). The lower pressure roll is rotatably installed inside the first housing. The top of the lower pressure roll is higher than the top of the first housing. Support plates that are close to each other extend from the front and rear sides of the top of the first housing.

5. A photovoltaic strip rolling apparatus according to claim 2, characterized in that: The upper calendering roller assembly (21) includes a second housing, an upper pressure roller, a return spring, and a support rod. There are two return springs and two support rods. The two return springs are symmetrically arranged on the top of the support plate. The bottom of the second housing is a completely open structure. There are extension plates extending close to each other on both the front and rear sides of the bottom of the second housing. The second housing is fixedly installed on the top of the return spring. The upper pressure roller is rotatably installed inside the second housing. The front and rear are spaced apart on the top of the second housing. The top of the support rod is threaded. The top of the support rod passes through and extends to the top of the frame (1). The support rod and the frame (1) are threadedly connected. The first worm gear is fixedly installed on the top of the support rod located at the front end of the frame (1). The second worm gear is fixedly installed on the top of the support rod located at the rear end of the frame (1).

6. A photovoltaic strip rolling apparatus according to claim 5, characterized in that: The thickness of the first worm wheel is greater than the maximum diameter of the first worm, and the thickness of the second worm wheel is greater than the maximum diameter of the second worm wheel.

7. A photovoltaic strip rolling apparatus according to claim 1, characterized in that: A diameter gauge (4) is provided on the right side of the frame (1), and the diameter gauge (4) is used to detect the thickness of the photovoltaic strip after rolling.

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