A method and apparatus for removing a residue from a whole glass of a scrapped component

Abstract

This invention relates to the field of photovoltaic module recycling equipment, specifically disclosing a device and method for removing residual EVA adhesive from the entire glass surface of scrapped modules. The device includes a dry ice blasting mechanism, a motion mechanism, and a control system. The dry ice blasting mechanism generates dry ice particles and mixes them with high-pressure gas to form a gas-solid two-phase jet, which is then sprayed toward the surface of the glass substrate. The motion mechanism carries and drives the nozzle to move in three-dimensional space above the glass substrate surface. The control system is communicatively connected to both mechanisms and controls the nozzle's trajectory, spray angle, and distance from the glass substrate surface. Through this structural combination, utilizing the low-temperature embrittlement and high-speed impact physical effects of the dry ice particles, residual EVA adhesive can be efficiently and thoroughly removed from the glass surface while fundamentally avoiding scratches or corrosion caused to the glass substrate by traditional mechanical or chemical methods. This ensures the physical integrity of the glass and achieves uniform, precise, and thorough treatment of the glass surface.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module recycling equipment, and more particularly to a device and method for removing residual adhesive from the entire glass of scrapped modules. Background Technology

[0002] As the world's first batch of large-scale photovoltaic (PV) modules gradually enter their end-of-life phase, PV module recycling has become a focus of industry attention. According to industry statistics, the total amount of end-of-life PV modules worldwide is expected to exceed 1 million tons by 2025. Glass substrates account for over 60% of the total weight of PV modules, and their complete recycling and direct reuse in PV manufacturing has significant economic and environmental value.

[0003] However, during component recycling, after the backsheet is peeled off with a hot knife, a large amount of EVA adhesive layer used for encapsulation remains on the glass surface. This residual adhesive layer not only affects the glass's light transmittance but also becomes a major technical obstacle to efficient and high-quality glass recycling. Currently, industry quality requirements for recycled glass typically include: no adhesive residue, no scratches, and a light transmittance loss of no more than 3%. Existing adhesive removal technologies and equipment struggle to efficiently remove the adhesive layer while ensuring the glass surface remains undamaged, resulting in a large amount of reusable glass being broken or downgraded, leading to low resource utilization.

[0004] Currently, the removal of adhesive residue from glass surfaces mainly relies on the following two types of equipment: Mechanical grinding equipment: This method physically polishes the glass surface using grinding wheels or belts. It is difficult to completely remove the adhesive layer and easily creates scratches approximately 0.02–0.05 mm deep on the glass surface, resulting in a light transmittance loss exceeding 10%, which fails to meet the reuse standards for photovoltaic-grade glass. Furthermore, the grinding process generates a large amount of dust, requiring a complex dust removal system, leading to high equipment operating and maintenance costs.

[0005] Chemical cleaning equipment uses organic solvents to dissolve the EVA adhesive layer. Although the equipment structure is relatively simple, it suffers from problems such as solvent evaporation polluting the environment and potentially corroding glass surfaces. Furthermore, solvent recovery costs can account for more than 40% of the equipment's operating costs. Given increasingly stringent environmental regulations, it is difficult to balance economic efficiency with environmental friendliness.

[0006] It is evident that existing technologies have failed to effectively solve the problem of protecting the physical and optical properties of the glass surface while efficiently removing adhesive, thus hindering the high-value recycling and reuse of intact glass substrates. Therefore, there is an urgent need for a technology and equipment that can achieve efficient, non-destructive, and environmentally friendly residual adhesive removal. Summary of the Invention

[0007] The purpose of this invention is to provide a device and method for removing residual adhesive from the entire glass of scrapped components, in order to solve the above-mentioned technical problems existing in the prior art.

[0008] As a first aspect of the present invention, the present invention provides a device for removing residual adhesive from the entire glass substrate of a scrapped component, comprising: a worktable for carrying and transporting a glass substrate; a dry ice blasting mechanism for generating dry ice particles and mixing them with high-pressure gas to form a gas-solid two-phase jet, and spraying the gas-solid two-phase jet toward the surface of the glass substrate; a motion mechanism for carrying and driving the nozzle of the dry ice blasting mechanism to move in three-dimensional space above the surface of the glass substrate; and a control system communicatively connected to the dry ice blasting mechanism and the motion mechanism for controlling the movement trajectory, spraying angle, and distance of the nozzle from the surface of the glass substrate.

[0009] Furthermore, the dry ice blasting mechanism includes a dry ice manufacturing and compression unit, a dry ice blasting pipe, and the nozzle, wherein the nozzle is connected to the dry ice manufacturing and compression unit via the dry ice blasting pipe; the dry ice manufacturing and compression unit integrates a dry ice maker, a storage tank, an air compressor, and a pressurization module.

[0010] Furthermore, the booster module includes a multi-stage booster pump and a pressure regulating valve; the control system, based on preset EVA adhesive layer thickness parameters, adjusts the pressure regulating valve to control the injection pressure within the corresponding range of 10-20 MPa.

[0011] Furthermore, the throat of the nozzle adopts a venturi tube structure.

[0012] Furthermore, the motion mechanism includes an X-axis motion component, a Y-axis motion component, and a Z-axis motion component, which together constitute a gantry-type three-axis motion system, and the nozzle is mounted on the Z-axis motion component.

[0013] Furthermore, the control system has pre-stored the size parameters of glass substrates of different specifications and the corresponding nozzle scanning path program, which is used to drive the nozzle to move along the preset path.

[0014] Furthermore, a displacement sensor is integrated on the Z-axis moving component to monitor the vertical distance between the nozzle outlet and the glass substrate surface in real time; a pressure sensor is installed in the high-pressure air path of the dry ice blasting mechanism; the control system receives the feedback signals from the displacement sensor and the pressure sensor and compares them with preset process parameters. When a deviation is detected, the control system drives the Z-axis moving component to perform height compensation and / or adjusts the pressure regulating valve of the dry ice blasting mechanism to stabilize the pressure in real time.

[0015] Furthermore, the waste component glass residual adhesive removal equipment also includes a vision positioning system, which is used to accurately locate the position and outline of the glass substrate when it enters the adhesive removal station, and feed the data back to the control system to correct the initial working coordinates of the nozzle.

[0016] Furthermore, the equipment for removing residual adhesive from the entire glass substrate of the scrapped component also includes an online detection device, which is used to scan the surface of the glass substrate after adhesive removal during or after the removal process to detect residual adhesive spots or scratches, and to feed back the online detection data to the control system.

[0017] Furthermore, the equipment for removing residual adhesive from the entire glass of the scrapped component also includes a flexible clamping mechanism installed on the worktable of the equipment, which is used to adaptively clamp and fix the glass substrate at the adhesive removal station.

[0018] Furthermore, the waste component whole glass residual adhesive removal equipment also includes a conveying mechanism set on the equipment worktable for conveying the glass substrate to be processed along a preset direction.

[0019] As a second aspect of the present invention, the present invention provides a method for removing residual adhesive from the entire glass of a scrapped component, based on the residual adhesive removal equipment for the entire glass of a scrapped component described in the first aspect above, the method comprising the following steps: S1. Start the equipment and set the specifications and corresponding process parameters of the glass substrate to be processed, including the spraying pressure, dry ice supply and nozzle movement speed set according to the EVA adhesive layer thickness. S2. The glass substrate to be processed is transported to the adhesive removal station and fixed, and its precise position is obtained. S3. Drive the nozzle to move above the starting point of the glass substrate, control the dry ice spraying mechanism to work, so that the nozzle sprays out a gas-solid two-phase jet and sweeps across the entire surface of the glass substrate according to a preset path, using the low-temperature embrittlement effect and high-speed impact effect of dry ice particles to remove residual adhesive. S4. After the adhesive removal cycle is completed, the surface of the glass substrate is scanned by an online detection device. If a defective area is detected, targeted re-spraying is performed. If the area is qualified, the substrate is released and unloaded.

[0020] Further, in step S1, the spraying pressure parameters are set according to the estimated or measured EVA adhesive layer thickness: for an adhesive layer of 0.1-0.2 mm, the pressure is set to 10-12 MPa; for an adhesive layer of 0.2-0.5 mm, the pressure is set to 15-20 MPa.

[0021] Furthermore, in step S2, the glass substrate is photographed and identified using a visual positioning system to accurately obtain its position and boundary coordinates, so as to fine-tune the initial working coordinates of the nozzle.

[0022] Furthermore, in step S3, the nozzle sweeps across the entire glass surface at a constant speed along an S-shaped path, and the Z-axis moving part adjusts its height in real time to ensure that the spray distance and angle remain constant.

[0023] Furthermore, in step S4, the surface is scanned by an online detection device. If residual adhesive spots are detected, the control system automatically plans a respray path and drives the nozzle to perform targeted cleaning of specific areas.

[0024] Furthermore, the dry ice manufacturing and compression machine supplies dry ice particles using a continuous supply or pulse supply mode.

[0025] Furthermore, in step S3, the dry ice particles are at a temperature of -78.5°C. After contacting the EVA adhesive layer and causing it to become embrittled at low temperature, they are then peeled off by high-pressure, high-speed gas-solid two-phase flow impact.

[0026] Compared with the prior art, the present invention discloses at least the following beneficial effects: This invention achieves efficient, precise, and non-destructive removal of residual EVA adhesive layers from the surface of waste photovoltaic module glass substrates by organically combining a dry ice blasting mechanism, a motion mechanism, and a control system. The dry ice blasting mechanism utilizes the low-temperature embrittlement effect and high-speed impact effect of dry ice particles to rapidly embrittle and peel off the adhesive layer without damaging the glass surface, avoiding scratches, corrosion, or environmental pollution problems that may occur with traditional mechanical grinding or chemical cleaning methods. The motion mechanism employs a gantry-type three-axis system to drive the nozzles in stable and flexible three-dimensional spatial movement above the glass surface, ensuring uniform and thorough spraying coverage and adapting to glass substrates of different sizes and shapes. The control system achieves closed-loop control and adaptive optimization of process parameters by adjusting the nozzle's trajectory, spray angle, and distance from the glass surface in real time, combined with visual positioning and online detection feedback. This significantly reduces the intensity of manual intervention while improving adhesive removal efficiency and consistency, ensuring the light transmittance and physical integrity of the glass, and providing an automated, environmentally friendly, and reliable solution for the high-value recycling of photovoltaic glass. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An isometric view of the residual adhesive removal device for scrapped components provided by this invention; Figure 2 This is a front view of the equipment for removing residual adhesive from the entire glass of scrapped components provided by the present invention; Figure 3 This is a top view of the equipment for removing residual adhesive from the entire glass of scrapped components provided by the present invention; Figure 4The left view of the equipment for removing residual adhesive from the entire glass of scrapped components provided by the present invention; Reference numerals: 1. Equipment worktable; 2. Conveying mechanism; 3. Flexible clamping mechanism; 4. X-axis moving part; 5. Y-axis moving part; 6. Z-axis moving part; 7. Dry ice jet pipe; 8. Nozzle; 9. Dry ice manufacturing and compression integrated machine; 10. Glass substrate after adhesive removal. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 4 As shown, this embodiment of the invention provides a device for removing residual adhesive from the entire glass substrate of a scrap photovoltaic module, which is used to efficiently and non-destructively remove the residual EVA (ethylene-vinyl acetate copolymer) adhesive layer from the surface of the complete glass substrate of a scrap photovoltaic module after the backsheet has been peeled off by a hot knife.

[0032] The equipment includes a worktable 1, a conveying mechanism 2, a flexible clamping mechanism 3, a motion mechanism, and a dry ice spraying mechanism. The conveying mechanism 2 is mounted on the worktable 1 and is used to convey the glass substrate to be processed along a preset direction. The flexible clamping mechanism 3 is mounted on the conveying mechanism 2 and is used to adaptively clamp and fix the glass substrate at the adhesive removal station to prevent displacement or damage during processing.

[0033] In this embodiment, the dry ice blasting mechanism is used to manufacture and store dry ice particles, mix them with high-pressure gas to form a gas-solid two-phase jet, and spray it onto the glass surface at a specific angle and distance. This integrated mechanism utilizes low-temperature embrittlement and high-speed impact effects to remove residual adhesive. Specifically, in this embodiment, the dry ice blasting mechanism includes a dry ice blasting pipe 7, a nozzle 8, and a dry ice manufacturing and compression integrated machine 9.

[0034] In one specific embodiment, the dry ice manufacturing and compression unit 9 is the core feeding and power unit of the equipment, integrating a dry ice manufacturing machine, a storage tank, an air compressor, and a pressurization module. The dry ice manufacturing machine is used to prepare solid dry ice particles from liquid carbon dioxide; the storage tank is used for temporary storage of dry ice particles; the air compressor provides the initial power air source; and the pressurization module increases the air source pressure to the required 10-20 MPa high pressure for operation. The dry ice manufacturing and compression unit 9 is connected to the dry ice injection pipe 7 via pipelines, delivering the high-pressure dry ice particles and gas mixture (gas-solid two-phase flow) to the nozzle 8.

[0035] In one specific embodiment, the control system adjusts the pressure regulating valve according to the preset EVA adhesive layer thickness parameters to precisely control the spray pressure within the corresponding pressure range. For example, when the detected or set EVA adhesive layer thickness is 0.1-0.2mm, the spray pressure is controlled at 10-12MPa; when the adhesive layer thickness is 0.2-0.5mm, the spray pressure is controlled at 15-20MPa.

[0036] In this embodiment, the motion mechanism includes an X-axis motion component 4, a Y-axis motion component 5, and a Z-axis motion component 6, which together constitute a gantry-type three-axis motion system. The X-axis motion component 4 is mounted on the equipment worktable 1, and its motion direction is parallel to the length direction of the glass substrate. The Y-axis motion component 5 is slidably connected to the X-axis motion component 4, and its motion direction is parallel to the width direction of the glass substrate. The Z-axis motion component 6 is slidably connected to the Y-axis motion component 5, and its motion direction is perpendicular to the plane of the glass substrate (i.e., the height direction). The dry ice spray pipe 7 and the nozzle 8 fixed to its end are mounted on the Z-axis motion component 6. Through the coordinated control of the three-axis motion system, the nozzle 8 can be driven to perform precise three-dimensional spatial positioning and trajectory movement above the surface of the glass substrate.

[0037] During the adhesive removal process, the controller drives the nozzle 8 to move at a constant speed along a preset S-shaped path, and the displacement sensor connected to the Z-axis moving part 6 provides real-time feedback on the distance between the nozzle 8 and the glass surface, dynamically adjusting the Z-axis height to keep the vertical distance between the nozzle 8 outlet and the glass surface constant within the range of 15-20mm, while keeping the spray angle constant within the range of 45°-60°.

[0038] Based on the above embodiments, a displacement sensor is further integrated on the Z-axis moving part 6 to monitor the vertical distance between the nozzle 8 outlet and the glass surface in real time.

[0039] Building upon the above embodiments, a pressure sensor is further installed in the high-pressure air circuit to monitor the injection pressure in real time. The central controller receives feedback signals from the displacement and pressure sensors and compares them with preset process parameters (such as an injection distance of 15-20 mm and an injection pressure of 10-20 MPa depending on the adhesive layer thickness). When the distance of the nozzle 8 deviates from the preset range or the pressure fluctuation exceeds a set threshold (e.g., ±0.5 MPa), the controller will drive the Z-axis moving part 6 in real time for height compensation or adjust the pressure regulating valve in the pressurization module to stabilize the pressure, thereby ensuring the process stability of the adhesive removal process.

[0040] In this embodiment, the conveying mechanism 2 consists of several conveying rollers rotatably connected to the equipment workbench 1, and each conveying roller is driven by a conveying drive mechanism.

[0041] In this embodiment, the flexible clamping mechanism 3 specifically comprises four rubber clamping blocks disposed between the gaps of adjacent conveying rollers. The four rubber clamping blocks are symmetrically distributed in pairs on both sides of the glass substrate, and are used to align and position the glass substrate from both sides. The side of the rubber clamping block that contacts the glass substrate is made of flexible rubber to ensure stable clamping while avoiding hard damage to the glass edges.

[0042] In some other embodiments, the flexible clamping mechanism 3 may also be configured as multiple vacuum suction cups and / or mechanical grippers with cushioning material. The vacuum suction cups adsorb the back side of the glass substrate by negative pressure, while the mechanical grippers flexibly clamp the glass substrate from the edge. The combination of the two can ensure that glass substrates of different sizes, thicknesses or with slight deformations can be stably fixed, while avoiding hard compression damage to the glass edges.

[0043] Building upon the above embodiments, the pressurization module of the dry ice manufacturing and compression integrated machine 9 further includes a multi-stage booster pump and a pressure regulating valve. The control system, based on preset EVA adhesive layer thickness parameters (typically 0.1-0.5 mm), adjusts the pressure regulating valve to precisely control the injection pressure within the corresponding range of 10-20 MPa. For example, for a thin adhesive layer of 0.1-0.2 mm, the pressure can be set to 10-12 MPa; for a thick adhesive layer of 0.2-0.5 mm, the pressure is set to 15-20 MPa to achieve optimal impact peeling effect while saving energy.

[0044] Building upon the above embodiments, the throat of nozzle 8 further employs a venturi tube structure design. When the high-pressure gas-solid two-phase flow passes through the throat, the flow cross-section shrinks dramatically, further increasing the airflow velocity and thus forming a high-speed jet with stronger kinetic energy. This high-speed jet impacts the EVA adhesive layer, which has been embrittled by dry ice at low temperatures, generating instantaneous, concentrated shear force and micro-explosion effects, causing the adhesive layer to completely peel off from the glass interface.

[0045] Building upon the aforementioned embodiments, the X-axis motion component 4, Y-axis motion component 5, and Z-axis motion component 6 are further driven by servo motors, precision guide rails, and ball screws, and controlled by a central controller. The controller pre-stores dimensional parameters for different glass sizes (e.g., 166mm, 182mm, 210mm) and corresponding S-shaped reciprocating scanning path programs. During the adhesive removal process, the controller drives the nozzle 8 to move at a uniform speed along the preset S-shaped path, and simultaneously dynamically adjusts the Z-axis height to maintain a constant vertical distance of 15-20mm between the nozzle 8 outlet and the glass surface, and a constant spray angle of 45°-60°, ensuring uniform cleaning coverage of the entire glass surface without omissions or excessive impact.

[0046] Building upon the above embodiments, the dry ice injection pipe 7 is further encased in insulating material, and quick-change connectors are provided at key connection points. The insulating material reduces sublimation loss of dry ice particles during transport, maintaining their low-temperature characteristics. The quick-change connectors facilitate rapid replacement of injection pipes with different inner diameters or lengths to adapt to different process requirements or for maintenance.

[0047] In a preferred embodiment, the worktable 1 is further equipped with a vision positioning system (not shown) and an online inspection device. The vision positioning system is used to accurately locate the position and contour of the glass substrate when it enters the adhesive removal station, and feeds the data back to the control system to correct the starting point of the motion trajectory of the three-axis motion system. The online inspection device (such as a line scan camera or laser profilometer) can scan the surface of the glass substrate 10 after adhesive removal or during the process, detect residual adhesive spots or scratches, generate online inspection data, and feed the online inspection data back to the control system. If necessary, the nozzle 8 can be instructed to re-spray specific areas.

[0048] In addition, the online detection data can be used to update and optimize the adhesive removal process parameters for different batches or types of glass substrates, forming a closed-loop control, thereby continuously improving the consistency of adhesive removal effect and yield.

[0049] In this embodiment, the equipment uses dry ice as a medium. By utilizing the low-temperature freezing effect of dry ice, a large amount of heat is absorbed instantly, causing the temperature of the adhesive layer to drop to the embrittlement temperature (below -30℃, tempered glass has a temperature resistance of -74-280℃) within 3-5 seconds. The rigidity of the adhesive layer molecular chain is enhanced, and its extensibility is lost, transforming it from an "elastic body" into a "brittle body". The bonding force with the glass surface decreases sharply, achieving thorough cleaning of the entire glass surface without dead angles.

[0050] It should be understood that in practical applications, other cryogenic media, such as liquid nitrogen, can also be used.

[0051] It should also be understood that, based on this embodiment, a handheld nozzle 8 can be added to achieve semi-automatic removal of residual adhesive film from glass, thereby improving the efficiency and quality of adhesive removal.

[0052] This invention also provides a method for removing residual adhesive from the entire glass of scrapped components. Based on the residual adhesive removal equipment for the entire glass of scrapped components described in the above embodiments, the method includes the following steps: S1. Equipment Initialization and Parameter Setting: Turn on the main power supply of the equipment. Input or select the specifications and model of the glass substrate to be processed (e.g., type 182, type 210) through the human-machine interface (e.g., touch screen). The control system automatically calls the motion path program of the corresponding three-axis motion system. The operator sets the corresponding spraying pressure parameters (e.g., 10-12MPa for 0.1-0.2mm, 15-20MPa for 0.2-0.5mm) based on the estimated or measured EVA adhesive layer thickness, and simultaneously sets the dry ice supply (e.g., 5-10kg / m³). 2 (Glass area) and nozzle 8 movement speed (0.8-1.5m / s). After completion, start the dry ice manufacturing and compression unit 9 and air compressor for preheating, for example, for 3 minutes, to stabilize the system pressure and temperature.

[0053] S2. Loading and Positioning: Conveying mechanism 2 transports the carrier holding the glass substrate to be processed to the adhesive removal station. Flexible clamping mechanism 3 is activated, using vacuum adsorption and / or flexible clamping to securely fix the glass substrate in the working position. The vision positioning system photographs and identifies the glass substrate, accurately obtaining its position and boundary coordinates, and transmits them to the control system to fine-tune the initial working coordinates of nozzle 8.

[0054] S3. Dry Ice Jetting for Adhesive Removal: The three-axis motion system drives nozzle 8 to move above the starting point of the glass substrate. The dry ice manufacturing and compression unit 9 starts working, mixing the prepared dry ice particles with high-pressure gas and spraying it out from nozzle 8 through the dry ice jet pipe 7. Under the drive of the control system, nozzle 8 sweeps across the entire glass surface at a uniform speed along a preset S-shaped path. During this process, the control system adjusts the dry ice supply according to a preset amount (e.g., 5-10 kg / m³). 2 The glass area and nozzle 8 movement speed (e.g., 0.8-1.5 m / s) are precisely controlled. During this process, dry ice particles at -78.5°C contact the EVA adhesive layer, causing it to become brittle at low temperatures within seconds, losing its elasticity and adhesion. Simultaneously, a high-pressure, high-speed gas-solid two-phase flow impacts the brittle adhesive layer, causing it to shatter and peel off from the glass surface. During the spraying process, the control system dynamically adjusts the real-time height of the Z-axis moving part 6 based on the nozzle 8 position information fed back in real time by a displacement sensor, ensuring that the spraying distance and angle remain constant.

[0055] S4. Inspection and Unloading: After a single adhesive removal cycle, the online inspection device quickly scans the surface of the glass substrate 10 after adhesive removal. If a defective area (such as residual adhesive spots) is detected, the control system can automatically plan a re-spraying path and drive the nozzle 8 to perform secondary or multiple targeted cleaning of the area. If the inspection is qualified, the flexible clamping mechanism 3 releases the glass substrate 10 after adhesive removal, and the conveying mechanism 2 sends it out of the adhesive removal station, completing the unloading process. At the same time, the equipment can automatically perform dust removal and waste collection operations.

[0056] S5. Cyclic operation: Repeat steps S2 to S4 to automate the processing of the next glass substrate.

[0057] It should be understood that, in practical applications, the dry ice supply method of the dry ice manufacturing and compression integrated machine 9 can adopt either continuous supply or pulse supply mode. Continuous supply is suitable for large-area glass with uniform adhesive layer; pulse supply, by controlling the start and stop frequency of spraying, is suitable for areas with uneven adhesive layer thickness or requiring focused cleaning, thereby optimizing dry ice utilization. In addition, the equipment's control system can integrate an Internet of Things (IoT) module to achieve remote monitoring, cloud storage and retrieval of process parameters, and statistical analysis of production capacity and energy consumption data.

[0058] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0059] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for removing residual adhesive from the entire glass component of a scrapped assembly, characterized in that, include: Equipment worktable (1) is used to carry and transfer glass substrates; A dry ice jetting mechanism is used to manufacture dry ice particles and mix them with high-pressure gas to form a gas-solid two-phase jet, and to jet the gas-solid two-phase jet toward the surface of a glass substrate. A motion mechanism is used to carry and drive the nozzle (8) of the dry ice spraying mechanism to move in three-dimensional space above the surface of the glass substrate. The control system is communicatively connected to the dry ice spraying mechanism and the motion mechanism, and is used to control the motion trajectory, spraying angle and distance of the nozzle (8) from the surface of the glass substrate.

2. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 1, characterized in that, The dry ice blasting mechanism includes a dry ice manufacturing and compression unit (9), a dry ice blasting pipe (7), and a nozzle (8). The nozzle (8) is connected to the dry ice manufacturing and compression unit (9) through the dry ice blasting pipe (7). The dry ice manufacturing and compression unit (9) integrates a dry ice blasting machine, a storage tank, an air compressor, and a pressurization module.

3. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 2, characterized in that, The booster module includes a multi-stage booster pump and a pressure regulating valve; the control system controls the injection pressure within the corresponding range of 10-20MPa by adjusting the pressure regulating valve according to the preset EVA adhesive layer thickness parameters.

4. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 2, characterized in that, The throat of the nozzle (8) adopts a Venturi tube structure.

5. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 1, characterized in that, The motion mechanism includes an X-axis motion component (4), a Y-axis motion component (5), and a Z-axis motion component (6). The X-axis motion component (4), the Y-axis motion component (5), and the Z-axis motion component (6) constitute a gantry-type three-axis motion system. The nozzle (8) is mounted on the Z-axis motion component (6).

6. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 5, characterized in that, The control system has pre-stored the size parameters of glass substrates of different specifications and the corresponding nozzle (8) scanning path program, which is used to drive the nozzle (8) to move along the preset path.

7. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 6, characterized in that, The Z-axis moving part (6) is equipped with a displacement sensor for real-time monitoring of the vertical distance between the nozzle (8) outlet and the glass substrate surface; a pressure sensor is provided in the high-pressure air path of the dry ice blasting mechanism; the control system receives the feedback signals from the displacement sensor and the pressure sensor and compares them with preset process parameters. When a deviation is detected, the control system drives the Z-axis moving part (6) to perform height compensation and / or adjusts the pressure regulating valve of the dry ice blasting mechanism to stabilize the pressure.

8. The equipment for removing residual adhesive from the entire glass component of scrapped components according to claim 1, characterized in that, It also includes a vision positioning system for accurately locating the position and outline of the glass substrate when it enters the adhesive removal station, and feeding the data back to the control system to correct the initial working coordinates of the nozzle (8).

9. The equipment for removing residual adhesive from the entire glass component of a scrapped assembly according to claim 1, characterized in that, It also includes an online detection device for scanning the surface of the glass substrate (10) after adhesive removal during or after the process of adhesive removal, detecting residual adhesive spots or scratches, and feeding back the online detection data to the control system.

10. A method for removing residual adhesive from the entire glass of a scrapped component, based on the residual adhesive removal equipment for the entire glass of a scrapped component as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Start the equipment and set the specifications and corresponding process parameters of the glass substrate to be processed, including the spray pressure, dry ice supply and nozzle (8) movement speed set according to the EVA adhesive layer thickness. S2. The glass substrate to be processed is transported to the adhesive removal station and fixed, and its precise position is obtained. S3. Drive the nozzle (8) to move above the starting point of the glass substrate, control the dry ice spraying mechanism to work, so that the nozzle (8) sprays out a gas-solid two-phase jet and sweeps across the entire surface of the glass substrate according to the preset path, and removes the residual adhesive by using the low temperature embrittlement effect and high speed impact effect of the dry ice particles. S4. After the adhesive removal cycle is completed, the surface of the glass substrate is scanned by an online detection device. If a defective area is detected, targeted re-spraying is performed. If the area is qualified, the substrate is released and unloaded.

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