Photovoltaic laser processing conveying device and processing equipment

Abstract

The utility model relates to the technical field of photovoltaic solar cell processing, in particular to a photovoltaic laser processing and conveying device and processing device.The photovoltaic laser processing and conveying device is composed of a plurality of conveying units arranged in sequence, each conveying unit comprises a mounting base fixedly arranged on an equipment base and a conveying platform fixed to the mounting base, the conveying platform comprises a platform frame and a circulating conveying belt arranged on the platform frame in a sleeving mode. The tensioning wheel is fixedly arranged below the conveying platform, and the conveying belt bypasses the tensioning wheel in the first direction; the adjusting wheel is connected to the conveying platform through an adjusting device, and the conveying belt bypasses the adjusting wheel in the second direction; the included angle between the first direction and the second direction is larger than 90 degrees and smaller than 180 degrees. An original long-distance conveying device is decomposed into a plurality of short-distance conveying units, and the short-distance belt deformation difference is small; meanwhile, each conveying belt is independently provided with a tensioning wheel and an adjusting wheel, and the silicon wafers can be conveyed more stably by adjusting the tensioning degree of each belt.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic solar cell processing technology, specifically to a photovoltaic laser processing conveying device and processing equipment. Background Technology

[0002] In modern industrial production, efficient and stable material transport is crucial. With the continuous development of the photovoltaic solar cell industry, photovoltaic laser processing has undergone extreme time control in pursuit of higher processing efficiency and frequency. In photovoltaic laser processing equipment, silicon wafers are typically transported using conveyor belts. There are several existing conveying methods: one is a single wide belt, which has good load-bearing capacity but is prone to wear and wrinkling, and is also costly; the second is two narrow belts, which are now more commonly used. While less prone to wear and wrinkling, the synchronization between the two belts is poor. Furthermore, with high-intensity continuous operation, both belts will slack and lengthen, but can still be used, thus requiring re-adjustment and tensioning. However, the two belts often have different degrees of tension, and existing adjustment devices cannot adjust them independently, resulting in different transmission speeds on both sides. This causes the silicon wafers to rotate during transport, often requiring further adjustment and positioning after transport, affecting the overall processing speed. Summary of the Invention

[0003] In view of this, the main objective of the present invention is to provide a photovoltaic laser processing device with a reasonable internal component layout.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic laser processing conveying device, comprising a loading conveying device and a unloading conveying device, wherein the loading conveying device and the unloading conveying device are composed of multiple conveying units arranged sequentially, and each conveying unit includes a mounting base fixedly mounted on the equipment base and a conveying platform fixedly mounted on the mounting base, wherein...

[0005] The conveying platform includes a platform frame and a circulating conveyor belt fitted onto the platform frame;

[0006] And a tensioning pulley fixedly disposed below the conveying platform, the conveyor belt passing over the tensioning pulley from a first direction;

[0007] The conveyor belt passes over the adjusting wheel in a second direction via an adjusting device connected to the adjusting wheel on the conveying platform.

[0008] The angle between the first direction and the second direction is greater than 90 degrees and less than 180 degrees.

[0009] As an improvement, the conveying platform is also equipped with a front guide wheel and a rear guide wheel, which are disposed at both ends of the platform frame, and the conveyor belt is sleeved on the front guide wheel and the rear guide wheel.

[0010] As an improvement, the adjusting device is an L-shaped component, with the adjusting wheel rotatably connected to one side of the adjusting device, and the other side of the adjusting device movably connected to the platform frame by fasteners.

[0011] As an improvement, it also includes a drive motor, a drive wheel, a driven wheel, and a drive belt. The drive motor is configured to be fixedly connected to the mounting base. The drive wheel is coaxially fixedly connected to the drive motor. The driven wheel is coaxially fixedly connected to the front guide wheel or the rear guide wheel. The drive wheel and the driven wheel are driven by a drive belt.

[0012] As an improvement, the conveyor belt is configured with two belts, and the front guide wheel and the rear guide wheel are each configured with two belts. The two front guide wheels and the two rear guide wheels are respectively located on the front end and the rear end of the platform frame, and the two conveyor belts are respectively fitted on the front guide wheel and the rear guide wheel on the same side.

[0013] As an improvement, the conveying platform also includes two guide wheel mounting blocks, which are configured at both ends of the platform frame, with the front guide wheel and the rear guide wheel respectively mounted on the guide wheel mounting blocks.

[0014] As an improvement, the guide wheel mounting block includes a telescopic part, a mounting part, and a support part. The mounting part is U-shaped, and the two U-shaped protrusions of the mounting part are used to mount the two front guide wheels or the rear guide wheels. The telescopic part is inverted U-shaped, and the two U-shaped protrusions of the telescopic part are slidably connected to the platform frame. The support part is used to connect and fix the mounting part and the telescopic part.

[0015] As an improvement, the guide wheel mounting block further includes a synchronous shaft. The two U-shaped protrusions of the mounting part have mounting holes at their ends. The synchronous shaft is rotatably mounted in the two mounting holes, and the two front guide wheels or the rear guide wheels are respectively fixedly mounted at both ends of the synchronous shaft.

[0016] As an improvement, the platform frame is made of aluminum profile, and the telescopic part is fixedly connected to the platform frame by T-bolts.

[0017] In some embodiments, a photovoltaic laser processing device is also included, which applies any of the photovoltaic laser processing conveying devices described above.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This application provides a photovoltaic laser processing conveying device that breaks down the original long-distance conveying device into multiple short-distance conveying units, with smaller differences in belt deformation over short distances. At the same time, each conveying belt is individually equipped with a tensioning wheel and an adjusting wheel. By adjusting the tension of each belt, more stable silicon wafer conveying can be ensured. Attached Figure Description

[0020] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain the application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts.

[0021] Figure 1 This is a schematic diagram of the overall layout of the photovoltaic laser processing equipment of the present invention;

[0022] Figure 2 This is a schematic diagram showing the location of the NG box in the photovoltaic laser processing equipment of the present invention;

[0023] Figure 3 This is a schematic diagram of the rotary conveyor unit of the photovoltaic laser processing equipment of the present invention.

[0024] Figure 4 This is a schematic diagram of the rotary conveyor unit of the photovoltaic laser processing equipment of the present invention.

[0025] Figure label:

[0026] 1. Base; 2. Feeding conveyor; 3. Discharging conveyor; 4. Conveying unit; 41. Mounting base; 411. Drive motor; 412. Drive wheel; 413. Driven wheel; 414. Drive belt; 422. Conveying platform; 421. Conveying belt; 422. Tensioner; 423. Adjusting wheel; 424. Front guide wheel; 425. Rear guide wheel; 426. Adjusting device; 427. Guide wheel mounting block; 428. Synchronous shaft. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the photovoltaic silicon material processing, silicon material needs to be transferred from the previous process or basket to the processing station for laser processing via a conveyor device. After processing, it is transferred back to the basket or the next process. The entire transfer process involves multiple inspections and NG (non-conforming) removal operations, resulting in relatively long transfer distances. Currently, two short conveyor belts are commonly used for transport. However, during long-distance transport, various factors can cause the two conveyor belts to become uneven in length and tension, leading to silicon wafers rotating or even falling during transport, thus reducing overall processing efficiency and yield.

[0029] To solve at least one of the above problems, such as Figure 1 As shown, this invention provides a photovoltaic laser processing conveying device, including a loading conveying device 2 and a unloading conveying device 3, wherein the loading conveying device 2 and the unloading conveying device 3 are composed of multiple conveying units 4 arranged sequentially. As an embodiment of this application, the original long-distance conveying device is decomposed into multiple short-distance conveying units 4. On the one hand, it can be combined according to needs, which has high adaptability; on the other hand, the belts of short-distance conveying are shorter, and the deformation difference between the belts is smaller, making it easier to maintain the consistency of the conveying speed.

[0030] Furthermore, such as Figure 2As shown, the conveying unit 4 includes a mounting base 41 fixedly mounted on the equipment base 1 and a conveying platform 42 fixedly mounted on the mounting base 41. The conveying platform 42 includes a platform frame and a circulating conveyor belt 421 sleeved on the platform frame. In a preferred embodiment, the conveyor belt 421 has two belts, respectively disposed on both sides of the platform frame. Tensioning rollers 422 are fixedly mounted below the conveying platform 42, one on each side below the conveying platform 42, with each conveyor belt 421 passing over the corresponding tensioning roller 422 from a first direction. The unit also includes adjusting rollers 423 connected to the conveying platform 42 via an adjusting device 426, one on each side below the conveying platform 42, with each conveyor belt 421 passing over the corresponding adjusting roller 423 from a second direction. In a preferred embodiment, the adjusting device 426 is an L-shaped component, with the adjusting roller 423 rotatably connected to one side of the adjusting device 426, and the other side of the adjusting device 426 movably connected to the platform frame via fasteners. By adjusting the adjustment device 426, belts with uneven tension after prolonged high-intensity operation can be quickly adjusted, reducing speed differences between belts, preventing silicon material from rotating during transportation, and improving production efficiency. In another preferred embodiment of this application, the angle between the first direction and the second direction is greater than 90 degrees and less than 180 degrees. The adjusting wheel 423 and the tensioning wheel 422 restrict the belt's rotation direction to a reversible form. Adjusting the distance between the adjusting wheel 423 and the corresponding tensioning wheel 422 allows for adjustment of the corresponding belt's length and tension, ensuring that the tension and operating speed of the two conveyor belts 421 are the same, maintaining consistent conveying speed, and preventing silicon wafers from rotating or even falling during transportation.

[0031] Furthermore, the conveying platform 42 also includes two guide wheel mounting blocks 427, which are disposed at both ends of the platform frame. The conveying platform 42 is also equipped with a front guide wheel 424 and a rear guide wheel 425, which are respectively mounted on the guide wheel mounting blocks 427. The front guide wheel 424 and the rear guide wheel 425 are disposed at both ends of the platform frame, and the conveyor belt 421 is sleeved on the front guide wheel 424 and the rear guide wheel 425. The convenient installation and disassembly design of the guide wheel mounting blocks 427 makes the maintenance and replacement of the guide wheels simple and efficient, greatly shortening downtime and reducing the company's operating costs.

[0032] Furthermore, two conveyor belts 421 are configured, and two front guide pulleys 424 and two rear guide pulleys 425 are each configured. The two front guide pulleys 424 and the two rear guide pulleys 425 are respectively located on the front and rear sides of the platform frame. The two conveyor belts 421 are respectively fitted onto the front guide pulleys 424 and the rear guide pulleys 425 on the same side. The double-sided configuration of the conveyor belts 421 and the reasonable layout of the guide pulleys ensure that the material is subjected to uniform force during the conveying process, effectively avoiding problems such as silicon material deviation, jamming, and falling, and greatly improving the continuity of production and the integrity of the product.

[0033] As an improvement, the guide wheel mounting block 427 includes a telescopic part, a mounting part, and a support part, the support part being used to connect and fix the mounting part and the telescopic part. The telescopic part is inverted U-shaped, and its two U-shaped protrusions are slidably connected to the platform frame. This slidable connection between the U-shaped telescopic part and the platform frame allows the operator to easily adjust the position of the guide wheel according to the actual size of the material and conveying requirements, ensuring that the material remains in the correct position during conveying. The adjustable telescopic part of the guide wheel mounting block 427 allows the operator to easily adjust the position of the guide wheel according to the material specifications, greatly improving the adaptability of the conveying platform 42.

[0034] The mounting portion is U-shaped, with two U-shaped protrusions for mounting the two front guide wheels 424 or the rear guide wheels 425. The guide wheel mounting block 427 also includes a synchronous shaft 428. The two U-shaped protrusions of the mounting portion have mounting holes at their ends, and the synchronous shaft 428 is rotatably mounted within these holes. The two front guide wheels 424 or the rear guide wheels 425 are respectively fixedly mounted at both ends of the synchronous shaft 428. The synchronous shaft 428 is rotatably mounted within these two mounting holes using high-quality bearings, ensuring smooth and stable rotation. The two front guide wheels 424 or the rear guide wheels 425 are fixedly mounted at both ends of the synchronous shaft 428 via key connections. This mounting method ensures that the two guide wheels remain synchronized during rotation, avoiding inconsistent speeds and effectively improving the stability and accuracy of material conveying.

[0035] As an improvement, each conveying unit 4 also includes an independent drive motor 411, drive wheel 412, driven wheel 413, and drive belt 414. The drive motor 411 is configured to be fixedly connected to the mounting base 41. The drive wheel 412 is coaxially fixedly connected to the drive motor 411. The driven wheel 413 is coaxially fixedly connected to the front guide wheel 424 or the rear guide wheel 425. The drive wheel 412 and the driven wheel 413 are driven by the drive belt 414. Independent drive allows for real-time adjustment of the start / stop and transmission speed of the conveying unit 4 according to actual working conditions, facilitating coordination of the overall processing speed.

[0036] Specifically, the platform frame described in this solution is made of aluminum profile, and as a preferred embodiment, the profile is specifically a 3030 specification aluminum profile. Furthermore, the telescopic part is fixedly connected to the platform frame by T-bolts, wherein one end of the T-bolt passes through the telescopic part, and the other end, the T-shaped head, is inserted into a groove in the aluminum profile. It can be tightened and fixed at any position as needed, exhibiting extremely high economic applicability.

[0037] In some embodiments, this application also includes a photovoltaic laser processing device that uses any of the photovoltaic laser processing conveying devices described above.

[0038] Compared with the prior art, the beneficial effects of the present invention are:

[0039] This application provides a photovoltaic laser processing conveying device that breaks down the original long-distance conveying device into multiple short-distance conveying units, with smaller differences in belt deformation over short distances. At the same time, each conveying belt is individually equipped with a tensioning wheel and an adjusting wheel. By adjusting the tension of each belt, more stable silicon wafer conveying can be ensured.

[0040] It is less likely to cause problems due to the different speeds of the two belts during the conveying process.

[0041] In the various embodiments of this application, unless the form of connection is explicitly defined, the connection can be a detachable connection such as bolts and nuts, screws, clips, or magnetic attraction. In some connections where there is no particular requirement for a non-detachable fit, a non-detachable connection can be achieved through welding, bonding, or other methods.

[0042] The terms "an embodiment" or "embodiment" used in this specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Additionally, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0043] It should be understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0044] Furthermore, for ease of explanation, spatial relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of a component or feature relative to other components or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of components in use or operation other than those shown in the figures. Devices may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein may be interpreted accordingly.

[0045] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic laser processing conveying device, comprising a loading conveying device and a unloading conveying device, wherein the loading conveying device and the unloading conveying device are composed of a plurality of conveying units arranged sequentially, characterized in that, The conveying unit includes a mounting base fixedly mounted on the equipment base and a conveying platform fixedly mounted on the mounting base, wherein... The conveying platform includes a platform frame and a circulating conveyor belt fitted onto the platform frame; And a tensioning pulley fixedly disposed below the conveying platform, the conveyor belt passing over the tensioning pulley from a first direction; The conveyor belt passes over the adjusting wheel in a second direction via an adjusting device connected to the adjusting wheel on the conveying platform. The angle between the first direction and the second direction is greater than 90 degrees and less than 180 degrees.

2. The photovoltaic laser processing conveyor of claim 1, wherein, The conveying platform is also equipped with a front guide wheel and a rear guide wheel, which are disposed at both ends of the platform frame, and the conveyor belt is sleeved on the front guide wheel and the rear guide wheel.

3. The photovoltaic laser processing conveyor of claim 2, wherein, The adjustment device is an L-shaped component, and the adjustment wheel is rotatably connected to one side of the adjustment device. The other side of the adjustment device is movably connected to the platform frame by fasteners.

4. The photovoltaic laser processing conveyor of claim 3, wherein, It also includes a drive motor, a drive wheel, a driven wheel, and a drive belt. The drive motor is configured to be fixedly connected to the mounting base. The drive wheel is coaxially fixedly connected to the drive motor. The driven wheel is coaxially fixedly connected to the front guide wheel or the rear guide wheel. The drive wheel and the driven wheel are driven by a drive belt.

5. The photovoltaic laser processing conveyor of claim 4, wherein, The conveyor belt is configured with two belts, and there are two front guide wheels and two rear guide wheels. The two front guide wheels and the two rear guide wheels are respectively located on the front and rear sides of the platform frame, and the two conveyor belts are respectively fitted on the front guide wheels and the rear guide wheels on the same side.

6. The photovoltaic laser processing conveyor of claim 5, wherein, The conveying platform also includes two guide wheel mounting blocks, which are configured at both ends of the platform frame, and the front guide wheel and the rear guide wheel are respectively mounted on the guide wheel mounting blocks.

7. The photovoltaic laser processing conveyor of claim 6, wherein, The guide wheel mounting block includes a telescopic part, a mounting part, and a support part. The mounting part is U-shaped, and the two U-shaped protrusions of the mounting part are used to mount the two front guide wheels or the rear guide wheels. The telescopic part is inverted U-shaped, and the two U-shaped protrusions of the telescopic part are slidably connected to the platform frame. The support part is used to connect and fix the mounting part and the telescopic part.

8. The photovoltaic laser processing conveying device as described in claim 7, characterized in that, The guide wheel mounting block also includes a synchronous shaft. The two U-shaped protrusions of the mounting part have mounting holes at their ends. The synchronous shaft is rotatably mounted in the two mounting holes. The two front guide wheels or the rear guide wheels are respectively fixedly mounted at both ends of the synchronous shaft.

9. The photovoltaic laser processing conveyor of claim 8, wherein, The platform frame is made of aluminum profile, and the telescopic part is fixedly connected to the platform frame by T-bolts.

10. A photovoltaic laser processing apparatus, characterized by, The photovoltaic laser processing conveying device as described in any one of claims 1-9 is applied.

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