Laser processing equipment with environment cleaning control system

Abstract

The utility model provides laser processing equipment with an environment cleaning control system, which comprises an equipment rack, a laser light path module and a bearing device, the equipment rack comprises a bottom plate and a rack cover body, the laser processing equipment further comprises an accommodating cavity positioned in the rack cover body, and the internal space of the accommodating cavity is called a light path area; the space outside the accommodating cavity in the rack cover body is called as a non-light-path area, the laser light path module is located in the light path area, and the bearing device is located in the non-light-path area and located below the laser light path module; the dust suction cover is located above the bearing device in the non-light-path area, the dust suction machine is located outside the equipment rack, and the dust suction cover is communicated with the dust suction machine; the clean air blowing device is located above the light path area and used for blowing clean air towards the light path area; and the air exhausting device is positioned above the non-light-path area and is used for exhausting air to the outside of the equipment rack. According to the laser processing equipment, dust can be effectively prevented from entering the light path area, and the cleanness of the light path area and the environment in the equipment rack is guaranteed.

Description

Technical Field

[0001] This application belongs to the field of precision laser processing technology, specifically, it relates to a laser processing device with an environmental cleanliness control system. Background Technology

[0002] In the field of precision laser processing, a large amount of dust is often generated, and dust removal devices are used. Conventional dust removal devices use dust collectors, which use dust extraction hoods set near the processing station and air blowers to remove the dust generated by laser processing. In existing dust removal devices, some dust inevitably escapes from inside the dust extraction hood and drifts into the machine frame, causing contamination of the laser beam path and products, and affecting the laser processing effect.

[0003] With the gradual development of photovoltaic technology, the requirements for the processing precision and quality of solar cells are becoming increasingly higher. This necessitates ensuring that the solar cells inside the equipment are not contaminated by dust. Currently, there is an urgent need for effective measures that can both ensure the cleanliness of the internal environment of the rack and provide a clean and stable environment for the optical path. Utility Model Content

[0004] In view of this, this application provides a laser processing equipment with an environmental cleanliness control system, including an equipment frame, a laser optical path module, and a support device. The equipment frame includes a base plate and a frame cover. The laser processing equipment also includes:

[0005] The cavity located inside the rack housing is called the optical path area, and the space outside the cavity inside the rack housing is called the non-optical path area. The laser optical path module is located in the optical path area, and the support device is located in the non-optical path area and below the laser optical path module.

[0006] The dust hood located above the load-bearing device in the non-optical path area and the dust collector located outside the equipment frame are connected so that the dust collector can remove the dust generated during processing.

[0007] A clean air blowing device located above the light path area is used to blow clean air toward the light path area;

[0008] An air exhaust device located above the non-optical path area is used to exhaust air towards the outside of the equipment frame;

[0009] The cavity is equipped with an air outlet that connects to the non-optical path area. The clean air blowing device blows clean air into the optical path area, creating a slight positive pressure. The air exhaust device discharges air to the outside of the equipment, creating a slight negative pressure in the non-optical path area. The airflow moves from the slightly positive pressure area to the slightly negative pressure area.

[0010] As a further example, the internal space of the rack enclosure is divided into left and right sides along its length or width. The receiving cavity is located above one of the left and right sides, and the air exhaust device is located above the other of the left and right sides. The air inlet of the air exhaust device is connected to the non-optical path area, and the air outlet of the clean air blowing device is connected to the optical path area.

[0011] As a further example, the number of air exhaust devices is at least two, and at least two air exhaust devices are arranged on both sides of the clean air blowing device.

[0012] As a further example, the exhaust flow rate of the air venting device is greater than the intake flow rate of the clean air blowing device.

[0013] As a further example, the clean air blowing device includes a first frame, a fan disposed within the first frame, and a first filter disposed within the first frame; the air exhaust device includes a second frame and a fan disposed within the second frame; wherein both the first frame and the second frame are mounted on a frame cover.

[0014] As a further example, the air exhaust device also includes a second filter disposed within the second frame, or a second filter disposed outside the second frame, the air exhaust device being used to exhaust filtered clean air toward the outside of the equipment frame.

[0015] As a further example, the dust collector is a wet dust collector, and a water storage container is installed in the path through which the dust passes inside the wet dust collector.

[0016] As a further example, the surrounding cavity of the receiving cavity is formed by a dustproof curtain.

[0017] As a further example, the dust curtain has Velcro at the points where it needs to be closed.

[0018] As a further example, the bottom of the cavity is an optical path stage, which serves as the bottom cavity of the cavity while supporting the laser optical path module.

[0019] As a further example, sealing strips are installed at all gaps in the frame enclosure.

[0020] As a further example, the carrier has a processing station, and the laser processing equipment also includes a worktable dust collector located on the side of the processing station in the non-optical path area, which includes a fan cover and a fan. The air outlet of the fan cover faces the processing station, and the fan is used to provide power so that the worktable dust collector blows air toward the battery cells located at the processing station.

[0021] As a further example, the air outlet on the receiving cavity is located at the bottom of the receiving cavity.

[0022] As a further example, the vent on the cavity also serves as a perforation for the laser beam to pass through the cavity.

[0023] As a further example, the support device is a turntable device, which includes a rotary drive mechanism and multiple support platforms connected to the rotary drive mechanism. The support device has a processing station. The rotary drive mechanism drives the support platforms to move to the processing station so that the laser optical path module can emit a laser beam to perform laser processing on the material located at the processing station. A dust extraction hood is set at the processing station.

[0024] As a further example, it also includes a conveying device located on the side of the carrier device in the non-light path area, the conveying device including a loading conveying mechanism and a unloading conveying mechanism, the loading conveying mechanism and the unloading conveying mechanism having the same or opposite conveying directions.

[0025] This application utilizes a rack enclosure to house the laser optical path module within a recessed cavity. A clean air blowing device and an air exhaust device are respectively installed above the optical path area and non-optical path area. The clean air blowing device introduces filtered clean air into the optical path area, creating a slight positive pressure. The air exhaust device discharges air to the outside of the rack, creating a slight negative pressure in the non-optical path area. The airflow moves from the slightly positive pressure area to the slightly negative pressure area, effectively preventing dust from entering the optical path area and ensuring a clean and stable environment there. Dust inside the rack enclosure is not dispersed, ensuring a clean and stable internal environment for the cell transfer and processing areas. When the air exhaust device also includes a filter, dust dispersed in the non-optical path area is carried by the airflow to the air exhaust device and collected on its filter, further ensuring the cleanliness of the environment surrounding the equipment. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Figure 1 A front view of a laser processing apparatus with an environmental cleanliness control system according to an embodiment of this application;

[0029] Figure 2 A top view of a laser processing apparatus with an environmental cleanliness control system according to an embodiment of this application;

[0030] Figure 3 A schematic diagram of the structure of a clean air blowing device according to an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the structure of an air exhaust device according to an embodiment of this application. Detailed Implementation

[0032] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 , Figure 2 As shown, this application provides a laser processing equipment with an environmental cleanliness control system, including an equipment frame, a laser optical path module, and a support device 8. The equipment frame includes a base plate 1 and a frame cover 2. The frame cover 2 encloses the main structures of the equipment, such as the laser optical path module, the support device, the loading conveyor mechanism, and the unloading conveyor mechanism, within a space to enable environmental cleanliness control inside the equipment. The laser processing equipment with the environmental cleanliness control system also includes:

[0035] The cavity 3 located inside the frame housing 2 is called the optical path area. The space inside the cavity 3 is called the non-optical path area. The laser optical path module is located in the optical path area. The support device 8 is located in the non-optical path area and below the laser optical path module. The dust extraction hood 4 is located above the support device 8 in the non-optical path area, and the dust extraction machine 5 is located outside the equipment frame. The dust extraction hood 4 and the dust extraction machine 5 are connected so that the dust extraction machine 5 can remove the dust generated during processing.

[0036] The clean air blowing device 6, located above the light path zone, is used to blow filtered clean air toward the light path zone.

[0037] The air exhaust device 7 located above the non-light path area is used to exhaust air to the outside of the equipment frame. The air exhaust device 7 here can also be considered as drawing away the air inside the frame cover 2.

[0038] The receiving cavity 3 is equipped with an air outlet that communicates with the non-optical path area, allowing air from the optical path area to flow to the non-optical path area through the air outlet. The clean air blowing device 6 blows clean air into the optical path area, creating a slight positive pressure there. The air exhaust device 7 discharges air to the outside of the equipment, creating a slight negative pressure in the non-optical path area. The airflow moves from the slightly positive pressure area to the slightly negative pressure area.

[0039] By placing the laser optical path module inside the cavity, the entry of contaminants and the emission of contaminants from the laser itself are effectively reduced, ensuring the cleanliness of the laser optical path and providing a stable and clean environment for laser processes.

[0040] Specifically, the laser optical path module includes a laser that emits a laser beam, a laser scanning mechanism that controls the scanning direction of the laser beam (e.g., a galvanometer and a field mirror), and other optical components such as a beam expander and shaping device. The support device 8 is used to support the workpiece. In this embodiment, the workpiece is a battery cell. For mass production, the support device 8 can be configured to drive the movement of a support platform. The support device 8 includes a drive actuator and multiple support platforms connected to the drive actuator; for example, the support device 8 is a turntable device in the prior art. During laser processing, the battery cell is located at the processing station of the support device 8. The cavity arrangement of the receiving cavity 3 is described below; it is sufficient to independently enclose the laser optical module within a space. The dust extraction hood 4 covers the entire processing area, and the dust extraction machine 5 provides negative pressure, forming a negative pressure area below the dust extraction hood 4 to ensure that most of the dust in the processing area is first removed by the dust extraction machine 5, thus ensuring the cleanliness of the equipment interior. The main components of the dust extraction machine 5 are conventional structures in the prior art, including, for example, a fan and a filter located at the outlet of the dust extraction machine 5.

[0041] To prevent a small amount of dust from escaping from the dust extraction hood and contaminating the optical components and solar cells in the laser optical path module, the laser processing equipment of this application also includes a clean air blowing device 6 and an air exhaust device 7. These two devices have conventional structures, capable of blowing clean air into the optical path area and extracting dust scattered within the equipment, respectively, thus preventing dust from spreading throughout the equipment. Furthermore, when the air exhaust device 7 also includes a filter, dust can be collected on the exhaust device, ensuring that the air exhausted from the equipment is filtered clean air.

[0042] Furthermore, the air exhaust device 7 is located above the non-light path area. This can mean that the air exhaust device 7 is located directly above the rack cover 2, or that the air exhaust device 7 is located to the side above the rack cover 2, as long as the position of the air exhaust device 7 can cooperate with the clean air blowing device 6 to form an airflow path from the micro-positive pressure area to the micro-negative pressure area.

[0043] This application utilizes a rack enclosure to house the laser optical path module within a recessed cavity. A clean air blowing device and an air exhaust device are respectively installed above the optical path area and non-optical path area. The clean air blowing device introduces filtered clean air into the optical path area, creating a slight positive pressure. The air exhaust device discharges air to the outside of the rack, creating a slight negative pressure in the non-optical path area. The airflow moves from the slightly positive pressure area to the slightly negative pressure area, effectively preventing dust from entering the optical path area and ensuring a clean and stable environment there. Dust inside the rack enclosure is not dispersed, ensuring a clean and stable internal environment for the cell transfer and processing areas. When the air exhaust device also includes a filter, dust dispersed in the non-optical path area is carried by the airflow to the air exhaust device and collected on its filter, further ensuring the cleanliness of the environment surrounding the equipment.

[0044] As a further example, the exhaust flow rate of the air exhaust device 7 is greater than the intake flow rate of the clean air blowing device 2, thereby enabling the dust floating inside the equipment to be effectively discharged.

[0045] Furthermore, such as Figure 3 and Figure 4 As shown, the clean air blowing device 6 includes a first frame, a fan disposed within the first frame, and a first filter disposed within the first frame; the air exhaust device 7 includes a second frame and a fan disposed within the second frame; wherein, as Figure 1 As shown, both the first frame and the second frame are mounted on the frame cover 2. Figure 1 As shown in the example, both the first frame and the second frame are mounted on top of the rack cover 2.

[0046] Furthermore, the air exhaust device 7 also includes a second filter disposed within the second frame, or a second filter disposed outside the second frame. Thus, the air exhaust device not only removes dust from inside the equipment, but also exhausts filtered clean air, collecting dust dispersed within the non-optical path area on the filter of the air exhaust device, thus ensuring a high level of cleanliness. Furthermore, as... Figure 4 As shown in the figure, the second filter is installed at the air outlet of the air exhaust device 7.

[0047] In another embodiment, the internal space of the rack housing 2 is divided into left and right sides along its length or width. The receiving cavity 3 is located above one of the left and right sides, and the air exhaust device 7 is located above the other of the left and right sides. The air inlet of the air exhaust device 7 is connected to the non-optical path area, and the air outlet of the clean air blowing device 6 is connected to the optical path area. That is to say, in this embodiment, the clean air blowing device 6 and the air exhaust device 7 are located on the left and right sides of the rack housing 2. Preferably, they are installed on the top left and right sides of the rack housing 2, so that the airflow can better flow from the slightly positive pressure area to the slightly negative pressure area, and the dust floating inside the equipment rack can be effectively discharged.

[0048] Furthermore, when the receiving cavity 2 is located in the middle of the frame housing 2, at least two air exhaust devices 7 can be installed. These at least two air exhaust devices 7 are positioned on both sides of the clean air blowing device 6, which can effectively remove dust floating inside the equipment frame, ensuring a clean and stable environment in the optical path area. During operation, the clean air blowing device 6 blows filtered clean air into the optical path area, creating a slight positive pressure. The air exhaust devices 7 on both sides exhaust air to the outside of the equipment frame, creating a slight negative pressure in the non-optical path area. Airflow also flows from the slightly positive pressure area to the slightly negative pressure area.

[0049] As another embodiment, considering the large amount of dust generated during processing, which makes the filter element of the dust collector 5 prone to clogging, and the need for frequent cleaning of traditional dry dust collector filter elements, the dust collector 5 is set as a wet dust collector. A water storage container is set in the path through which the dust passes in the dust collector 5, so that most of the dust can be integrated into the water storage container, and a small amount of dust is discharged after being filtered by the filter element, which greatly extends the cleaning cycle of the filter element.

[0050] In another embodiment, the accommodating cavity 3 is surrounded by a dustproof curtain. Various materials can be chosen for the dustproof curtain, such as Teflon, which effectively provides a seal, reducing the entry of contaminants and the release of their own contaminants. Furthermore, Velcro is provided at the sealed areas of the dustproof curtain, facilitating access to the optical path area for optical path debugging and maintenance, thus improving operational convenience.

[0051] In another embodiment, the bottom of the receiving cavity 3 is an optical path stage, which serves as both the support for the laser optical path module and the bottom cavity of the receiving cavity. This achieves both sealing and cost and space savings.

[0052] Furthermore, the top cavity of the receiving cavity 3 can be formed by using the frame cover 2 itself and the frame of the air blowing device 6, or a separate top cover can be set as the top cavity of the receiving cavity 3. In this case, an opening can be made on the top cover to connect the light path area with the air outlet of the air blowing device 6. The structural form of the top cavity of the receiving cavity 3 is not limited.

[0053] As another embodiment, sealing strips are provided at all gaps on the frame cover 2. The sealing strips are made of materials such as foam, which has a high compressibility and can effectively ensure the airtightness of the equipment frame.

[0054] As another embodiment, the carrier device 8 has a processing station, such as Figure 1 As shown, the laser processing equipment also includes a worktable dust collector located on the side of the processing station in the non-optical path area. This dust collector includes a fan shroud 10 and a fan. The air outlet in the fan shroud faces the processing station, and the fan provides power to blow air from the worktable dust collector onto the solar cells located at the processing station to assist in dust removal. The fan provides positive pressure, and the negative pressure of the aforementioned dust extraction machine 5, combined with the positive pressure of the fan in the worktable dust collector, ensures that the dust generated during processing is more thoroughly removed.

[0055] As another embodiment, the air outlet on the receiving cavity 3 is located at the bottom of the receiving cavity 3, which is more conducive to preventing dust from entering the optical path area.

[0056] In another embodiment, the air outlet on the receiving cavity 3 also serves as a perforation for the laser beam to pass through the receiving cavity 3. Through this perforation, the receiving cavity 3 will not obstruct the laser processing of the battery cell. Of course, for other needs, other perforations can also be provided on the receiving cavity 3 for the laser beam to pass through.

[0057] In another embodiment, the support device 8 is a turntable device, which includes a rotary drive mechanism and multiple support platforms connected to the rotary drive mechanism, such as four support platforms. The support device 8 has a processing station. The rotary drive mechanism drives the support platforms to move to the processing station so that the laser optical path module can emit a laser beam to perform laser processing on the material located at the processing station. A dust extraction hood 4 is installed at the processing station. The rotary drive mechanism is, for example, a DD motor, which facilitates mass production and automated control through the turntable device.

[0058] It should be noted that the structure and position of the dust extraction hood 4 do not affect the laser beam emitted by the laser optical path module for processing workpieces.

[0059] As another embodiment, a conveying device is also included on the side of the carrier device 8 located in the non-optical path area. The conveying device includes a loading conveyor 9 and a unloading conveyor 11, with the loading conveyor 9 and unloading conveyor 11 having the same or opposite conveying directions. To facilitate the loading and unloading of solar cells, the frame cover 2 is also provided with a material inlet and a material outlet corresponding to the loading conveyor 9 and unloading conveyor 11, respectively. The loading conveyor 9 and unloading conveyor 11 are used to transfer the solar cells to be processed to the carrier device 8 and to transport the processed solar cells away, respectively. The loading conveyor 9 and unloading conveyor 11 can be arranged on the same side of the carrier device 8, in which case the feeding direction is opposite to the discharging direction, for example... Figure 2 As shown. Alternatively, the feeding conveyor 9 and the unloading conveyor 11 can be located on both sides of the carrying device 8, in which case the feeding direction and the discharging direction are the same. Furthermore, the feeding conveyor 9 includes a feeding conveyor belt and a feeding transport mechanism, which transfers the battery cells on the feeding conveyor belt to the carrying device 8. The unloading conveyor 11 includes an unloading conveyor belt and an unloading transport mechanism, which transfers the battery cells on the carrying device 8 to the unloading conveyor belt.

[0060] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the apparatuses disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser processing equipment with an environmental cleanliness control system, comprising an equipment frame, a laser optical path module, and a support device, characterized in that, The equipment frame includes a base plate and a frame housing. Laser processing equipment also includes: The cavity located inside the rack housing is called the optical path area, and the space outside the cavity inside the rack housing is called the non-optical path area. The laser optical path module is located in the optical path area, and the support device is located in the non-optical path area and below the laser optical path module. The dust hood located above the load-bearing device in the non-optical path area and the dust collector located outside the equipment frame are connected so that the dust collector can remove the dust generated during processing. A clean air blowing device located above the light path area is used to blow clean air toward the light path area; An air exhaust device located above the non-optical path area is used to exhaust air towards the outside of the equipment frame; The cavity is equipped with an air outlet that connects to the non-optical path area. The clean air blowing device blows clean air into the optical path area, creating a slight positive pressure. The air exhaust device discharges air to the outside of the equipment, creating a slight negative pressure in the non-optical path area. The airflow moves from the slightly positive pressure area to the slightly negative pressure area.

2. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The internal space of the frame enclosure is divided into left and right sides along its length or width. The receiving cavity is located above one of the left and right sides, and the air exhaust device is located above the other of the left and right sides. The air inlet of the air exhaust device is connected to the non-optical path area, and the air outlet of the clean air blowing device is connected to the optical path area.

3. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The number of air exhaust devices is at least two, and at least two air exhaust devices are installed on both sides of the clean air blowing device.

4. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The exhaust flow rate of the air venting device is greater than the intake flow rate of the clean air blowing device.

5. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The clean air blowing device includes a first frame, a fan installed in the first frame, and a first filter installed in the first frame; the air exhaust device includes a second frame and a fan installed in the second frame; wherein, both the first frame and the second frame are mounted on a frame cover.

6. The laser processing equipment with an environmental cleanliness control system according to claim 5, characterized in that, The air exhaust device also includes a second filter disposed within the second frame, or a second filter disposed outside the second frame, and the air exhaust device is used to exhaust filtered clean air to the outside of the equipment frame.

7. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The dust collector is a wet dust collector, and a water storage container is installed along the path through which the dust passes inside the wet dust collector.

8. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The cavity is surrounded by a dustproof curtain.

9. The laser processing equipment with an environmental cleanliness control system according to claim 8, characterized in that, The dust curtain has Velcro straps at the points where it needs to be closed.

10. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The bottom of the cavity is an optical path stage, which serves as the bottom cavity of the housing while supporting the laser optical path module.

11. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, All gaps on the frame cover are equipped with sealing strips.

12. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The carrier has a processing station, and the laser processing equipment also includes a worktable dust collector located on the side of the processing station in the non-optical path area. It includes a fan cover and a fan. The air outlet of the fan cover faces the processing station, and the fan is used to provide power so that the worktable dust collector blows air towards the battery cells located at the processing station.

13. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The air outlet on the receiving cavity is located at the bottom of the receiving cavity.

14. The laser processing equipment with an environmental cleanliness control system according to claim 13, characterized in that, The air outlet on the cavity also serves as a perforation for the laser beam to pass through the cavity.

15. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, The support device is a turntable device, which includes a rotary drive mechanism and multiple support platforms connected to the rotary drive mechanism. The support device has a processing station. The rotary drive mechanism drives the support platforms to move to the processing station so that the laser optical path module can emit a laser beam to perform laser processing on the material located at the processing station. A dust extraction hood is set at the processing station.

16. The laser processing equipment with an environmental cleanliness control system according to claim 1, characterized in that, It also includes a conveying device located on the side of the bearing device in the non-light path area. The conveying device includes a feeding conveying mechanism and a discharging conveying mechanism. The feeding conveying mechanism and the discharging conveying mechanism have the same or opposite conveying directions.

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