Light guide plate cooling device

Abstract

The utility model discloses a light guide plate cooling equipment relates to light guide plate processing technical field, the utility model discloses a equipment main part, the first net belt conveyer is installed to the equipment main part inside upper, the equipment main part inside is installed respectively from left to right second net belt conveyer and fourth net belt conveyer, the equipment main part inside lower part is installed respectively from right to left third net belt conveyer and fifth net belt conveyer. The utility model discloses the setting of first net belt conveyer, second net belt conveyer, third net belt conveyer, fourth net belt conveyer, fifth net belt conveyer, first roller and second roller, five net belt conveyers adopt vertical stack layout, cooperate first roller, second roller along the equidistance distribution of downward oblique line, make light guide plate blank form the conveying path similar to the hexagon in the equipment main part, realize the optimization and smooth transition of light guide plate blank conveying path.

Description

Technical Field

[0001] This utility model relates to the field of light guide plate processing technology, specifically to a light guide plate cooling device. Background Technology

[0002] A light guide plate is a core optical functional component, typically made of transparent polymer materials such as acrylic and polycarbonate, and processed through injection molding, laser engraving, or screen printing. Its core function is to refract, reflect, and homogenize the light emitted by point or line light sources such as LEDs, transforming it into a surface light source with uniform brightness. It is widely used in LCD displays, LED backlight panels, advertising light boxes, smart terminal display modules, and other fields, and is one of the key components to ensure the optical performance of display devices.

[0003] During the production of light guide plates, high-temperature processing steps such as injection molding and tempering are required, resulting in high surface and internal temperatures of the light guide plate blank. If the blank is left to cool in the processing equipment before being unloaded, production efficiency will be affected. If it is directly fed into subsequent processes such as cutting, lamination, and assembly, the high temperature can easily cause thermal deformation and surface scratches on the light guide plate blank, or affect the bonding accuracy with other components. Therefore, cooling equipment is required to cool it down. Currently, the mainstream cooling method in the industry is air cooling, which uses the airflow generated by a fan to remove the heat from the surface of the light guide plate blank, thereby rapidly reducing the temperature and ensuring that it meets the process requirements of subsequent processes.

[0004] Current air-cooled light guide plate cooling equipment has significant technical shortcomings in practical applications: First, to extend the residence time of the light guide plate blank in the equipment to ensure sufficient cooling, some equipment adopts a design that increases the length or number of mesh belt conveyors. However, this significantly increases the horizontal space occupied by the equipment, which contradicts the need for a compact layout in production workshops. Second, other equipment extends the residence time by slowing down the mesh belt conveyor speed. However, when the light guide plate blank is sent out from upstream injection molds, tempering furnaces, and other equipment, the upstream conveying speed is usually faster, creating a significant speed difference with the slow conveying speed in the cooling equipment. This can easily lead to collisions and jamming of the blank when it enters the cooling equipment. If all upstream and downstream equipment are slowed down synchronously to avoid the speed difference, the overall production cycle will be reduced, affecting capacity. Finding a balance between speed adjustments is very difficult and cumbersome, requiring continuous debugging and calculation. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a light guide plate cooling device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a light guide plate cooling device, comprising a device body, wherein a first mesh belt conveyor is installed at the top inside the device body, a second mesh belt conveyor and a fourth mesh belt conveyor are installed from left to right inside the device body, and a third mesh belt conveyor and a fifth mesh belt conveyor are installed from right to left at the bottom inside the device body; two sets of photoelectric sensors are installed on both sides inside the device body; multiple first rollers and multiple second rollers are respectively passed through the back sides of the device body and connected to two sets of baffles, and bearings are sleeved on the outside of the first rollers and the second rollers.

[0007] By adopting the above technical solution, and through the vertical layering of five sets of mesh belt conveyors within the main body of the equipment (upper layer first mesh belt, middle layer second and fourth mesh belts, lower layer third and fifth mesh belts), a three-dimensional conveying path for the light guide plate blank is initially constructed, avoiding the space occupation problem caused by traditional horizontally extended mesh belts. At the same time, the cooperation between the first and second rollers and bearings provides a structural basis for the transition of the blank between different mesh belts. The bearings can reduce the rotational resistance of the rollers and reduce the risk of frictional damage when the blank comes into contact with the rollers. The baffles provide initial positioning for the rollers and ensure the installation stability of the core conveying components.

[0008] Furthermore, both the first and second rollers are rotatably connected to the main body of the equipment via bearings, and the multiple first rollers and multiple second rollers are equidistantly distributed along a downward diagonal line.

[0009] By adopting the above technical solutions, the bearings enable the rollers to rotate flexibly with the main body of the equipment, significantly reducing the mechanical resistance when the rollers rotate, effectively preventing sliding friction between the light guide plate blank and the rollers due to excessive resistance, and reducing wear on the surface of the blank; while the design of the rollers being evenly distributed along a downward diagonal line can accurately reduce the height difference of the blank when it transitions between different height mesh belts, alleviate the impact damage caused by the blank falling due to gravity, and significantly improve the stability of the conveying transition.

[0010] Furthermore, both the first roller and the second roller have a "T" shaped cross section, and the larger diameter end of the first roller and the second roller abuts against the back of the equipment body and the outer surface of the baffle, respectively. The baffle is detachably connected to the equipment body by bolts.

[0011] By adopting the above technical solution, the T-shaped cross-section rollers utilize their larger diameter ends to form bidirectional physical limits with the back of the equipment body and the outer surface of the baffle, respectively. This effectively prevents the rollers from falling off the outer surface or back of the equipment body when conveying raw materials at high speed, ensuring the stability of the roller operation. The baffles are connected by bolts for easy removal, which does not affect the normal limiting function of the rollers and allows for quick disassembly for maintenance when the rollers, bearings, or buffer sleeves need to be inspected, reducing the complexity and time cost of equipment maintenance.

[0012] Furthermore, the two sets of photoelectric sensors correspond to the positions of the fourth and fifth mesh belt conveyors, respectively.

[0013] By adopting the above technical solution, the photoelectric sensor is positioned in accordance with the fourth and fifth mesh belt conveyors, and can directly detect whether there is light guide plate blank on the mesh belt, avoiding detection delay or missed detection caused by misalignment of the sensor and the mesh belt. This correspondence ensures that the mesh belt is only triggered when the blank arrives at the target mesh belt, and the mesh belt remains stopped when there is no blank. This reduces the ineffective energy consumption caused by the mesh belt running idle, and provides accurate signals for speed matching of the blank between different conveying sections.

[0014] Furthermore, the photoelectric sensor is a Pepperl+Fuchs OBE20M-R100-S2EP-IO-V31-L through-beam photoelectric sensor, and the photoelectric sensor is tilted.

[0015] By adopting the above technical solutions, the Pepperl+Fuchs OBE20M-R100-S2EP-IO-V31-L through-beam photoelectric sensor has industrial-grade detection accuracy and anti-interference capabilities, ensuring accurate identification of the blank. The tilted setting of the sensor can expand the detection range, covering the entire top surface of the fourth and fifth mesh belt conveyors, eliminating the detection blind spot at the edge of the mesh belt, avoiding missed detection due to blank position deviation, and further improving the accuracy and reliability of mesh belt start and stop control.

[0016] Furthermore, the first, second, and third mesh belt conveyors are all driven by variable frequency asynchronous motors, and the fourth and fifth mesh belt conveyors are all driven by servo motors. Light guide plate blanks are provided on the top of the first, second, third, fourth, and fifth mesh belt conveyors.

[0017] By adopting the above technical solutions, the first, second, and third mesh belt conveyors driven by variable frequency asynchronous motors can maintain a constant speed and continuous operation, providing a stable core conveying power for the light guide plate blank and ensuring the overall conveying rhythm of the equipment; the two fourth and fifth mesh belts driven by servo motors have more sensitive start-stop response and speed adjustment capabilities, and can accurately match the conveying speed according to the blank arrival signal, reducing the relative movement between the blank and the mesh belt and reducing wear.

[0018] Furthermore, cooling fans are installed on the upper side of one side and the lower side of the other side of the main body of the equipment. A PLC control cabinet is installed on one side of the outer surface of the main body of the equipment, and the first mesh belt conveyor, the second mesh belt conveyor, the third mesh belt conveyor, the cooling fan, the fourth mesh belt conveyor, the fifth mesh belt conveyor, and the photoelectric sensor are all electrically connected to the PLC control cabinet.

[0019] By adopting the above technical solution, the cooling fans distributed vertically on both sides of the main body of the equipment can form a circulating airflow inside, continuously removing heat from the surface of the light guide plate blank, thus meeting the cooling requirements of the blank. The PLC control cabinet, as the core control hub of the equipment, achieves coordinated operation of the conveyor belt, photoelectric detection, and fan cooling through electrical connection with all electrical components, avoiding rhythm disorder caused by independent operation of each component. At the same time, operators can monitor the operating status of the equipment through the PLC control cabinet, making it easy to adjust parameters in a timely manner and improve the stability and controllability of the equipment operation.

[0020] Furthermore, the cooling fans are provided in multiple groups, with each group containing multiple cooling fans arranged in a rectangular array.

[0021] By adopting the above technical solution, the multi-fan rectangular array distribution can form a uniform and wide-coverage air field inside the main body of the equipment, which can effectively increase the airflow exchange volume per unit time and increase the effective heat dissipation area. This layout reduces the heat dissipation dead corners inside the equipment, ensuring that the light guide plate blank can come into contact with the air-cooled airflow at all positions on the conveying path, ensuring the uniformity of the blank cooling and improving the cooling efficiency.

[0022] Furthermore, both the first and second rollers have grooves on their outer rings, and the grooves are filled with buffer sleeves.

[0023] By adopting the above technical solution, the groove on the outer ring of the roller provides a stable mounting slot for the buffer sleeve, ensuring that the buffer sleeve fits tightly with the roller and is not easy to fall off when the roller rotates; the buffer sleeve is in direct contact with the light guide plate blank, and can buffer the impact force when the blank collides with the roller through its own deformation, reducing scratches or damage to the surface of the blank caused by hard contact, while avoiding wear on the roller surface by the blank and extending the service life of the roller.

[0024] Furthermore, the buffer sleeve is made of silicone rubber, and the diameter of the buffer sleeve is smaller than the diameter of the two ends of the first roller and the second roller.

[0025] By adopting the above technical solution, the silicone rubber material has a high heat resistance temperature, which is higher than the melting point of acrylic and polycarbonate substrates of the light guide plate blank. Furthermore, the temperature of the blank is further reduced after initial cooling, which can effectively prevent the buffer sleeve from being damaged by high temperature when in contact with the blank, ensuring long-term stability. The diameter of the buffer sleeve is smaller than the diameter of both ends of the roller, which can prevent the buffer sleeve from generating additional friction with the main body of the equipment or other components when disassembling or replacing the roller, reducing disassembly and assembly resistance and improving the convenience of maintenance operations.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the arrangement of a first mesh belt conveyor, a second mesh belt conveyor, a third mesh belt conveyor, a fourth mesh belt conveyor, a fifth mesh belt conveyor, a first roller, and a second roller, with the five mesh belt conveyors arranged in a vertically stacked layout, and the first and second rollers distributed at equal intervals along a downward diagonal line, forms a similar "X"-shaped conveying path for the light guide plate blank within the main body of the equipment. This effectively extends the residence time of the light guide plate blank within the equipment without significantly increasing or eliminating the need for horizontal space occupancy, thus meeting the requirement for sufficient cooling; and achieves optimization and smooth transition of the light guide plate blank conveying path.

[0028] 2. This utility model utilizes photoelectric sensors, with two sets of sensors corresponding to the positions of the fourth and fifth mesh belt conveyors respectively. The inclined design allows the detection range to cover the entire top surface of the mesh belt, ensuring accurate detection of the presence of light guide plate blanks on the mesh belt. When blanks are detected, the fourth and fifth mesh belt conveyors can be triggered to start; when no blanks are detected, they stop operating, ensuring a smooth transition of blanks between different conveying sections. This reduces the phenomenon where the fourth and fifth mesh belt conveyors move in the opposite direction due to the light guide plate blanks moving in one direction, thereby reducing the possibility of wear and tear. It achieves a smooth transition, reducing the possibility of worn-out defective products.

[0029] 3. This utility model incorporates a baffle that is detachably connected to the main body of the equipment via bolts. The baffle abuts against the larger diameter end of the first and second rollers. Combined with the limiting effect of the roller's T-shaped cross-section, the baffle can limit the roller from the back of the equipment body, preventing it from detaching from the back or outer surface during rotation and ensuring stable conveying and support of the light guide plate blank. Simultaneously, the detachable bolt connection facilitates subsequent inspection and replacement of the rollers, bearings, or buffer sleeves, reducing the operational difficulty and time cost of equipment maintenance. This improves the overall reliability of the equipment and reduces the risk of production interruptions due to component detachment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0032] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 4 This is a top view schematic diagram of the photoelectric sensor structure of this utility model;

[0034] Figure 5 For the present utility model Figure 2 Schematic diagram of the structure at point A in the diagram;

[0035] Figure 6 This is a side sectional view of the second roller structure of this utility model.

[0036] In the diagram: 1. Main body of the equipment; 2. First mesh belt conveyor; 3. Second mesh belt conveyor; 4. Third mesh belt conveyor; 5. Cooling fan; 6. Fourth mesh belt conveyor; 7. Fifth mesh belt conveyor; 8. Photoelectric sensor; 9. Light guide plate blank; 10. PLC control cabinet; 11. First roller; 12. Second roller; 13. Buffer sleeve; 14. Bearing; 15. Baffle. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The embodiments of this utility model will be described below based on its overall structure.

[0039] Example 1:

[0040] A light guide plate cooling device, such as Figures 1-6As shown, the device includes a main body 1. A first mesh belt conveyor 2 is installed at the top inside the main body 1. From left to right, a second mesh belt conveyor 3 and a fourth mesh belt conveyor 6 are installed inside the main body 1. From right to left, a third mesh belt conveyor 4 and a fifth mesh belt conveyor 7 are installed at the bottom inside the main body 1. The first, second, and third mesh belt conveyors 2, 3, and 4 are all driven by variable frequency asynchronous motors, while the fourth and fifth mesh belt conveyors 6 and 7 are driven by servo motors. Two sets of photoelectric sensors 8 are installed on both sides inside the main body 1, corresponding to the positions of the fourth and fifth mesh belt conveyors 6 and 7, respectively. The photoelectric sensors 8 are Pepperl+Fuchs OBE20M-R100-S2EP-IO-V31-L through-beam photoelectric sensors, and are tilted. Multiple first rollers 11 and multiple second rollers 12 penetrate through the back of the main body 1 on both sides. Two rollers 12 are connected to two sets of baffles 15. Multiple first rollers 11 and multiple second rollers 12 are equidistantly distributed along a downward diagonal line. The cross-sections of the first rollers 11 and the second rollers 12 are both "T"-shaped. The larger diameter ends of the first rollers 11 and the second rollers 12 abut against the back of the main body 1 and the outer surface of the baffles 15, respectively. The baffles 15 are detachably connected to the main body 1 by bolts. Bearings 14 are sleeved on the outside of the first rollers 11 and the second rollers 12. The first rollers 11 and the second rollers 12 are rotatably connected to the main body 1 through the bearings 14. The five mesh belt conveyors adopt a vertical stacking layout. With the equidistant distribution of the first rollers 11 and the second rollers 12 along the downward diagonal line, the light guide plate blank 9 forms a conveying path similar to the letter "H" in the main body 1. Without increasing or increasing the horizontal space occupied by the equipment, the residence time of the light guide plate blank 9 in the equipment is effectively extended, thus meeting the requirement of sufficient cooling.

[0041] See Figures 1-3 In the above embodiment, light guide plate blanks 9 are provided on the top of the first mesh belt conveyor 2, the second mesh belt conveyor 3, the third mesh belt conveyor 4, the fourth mesh belt conveyor 6, and the fifth mesh belt conveyor 7. Cooling fans 5 are installed on the upper side of one side and the lower side of the other side of the main body 1. During the entire conveying process of the light guide plate blanks 9, the two sets of cooling fans 5 installed on the upper side of one side and the lower side of the other side of the main body 1 always operate synchronously. The airflow generated by the fans forms a wind field inside the main body 1, continuously removing the heat from the surface of the blanks. A PLC control cabinet 10 is installed on one side of the outer surface of the main body 1. The first mesh belt conveyor 2, the second mesh belt conveyor 3, the third mesh belt conveyor 4, the cooling fans 5, the fourth mesh belt conveyor 6, the fifth mesh belt conveyor 7, and the photoelectric sensor 8 are all electrically connected to the PLC control cabinet 10. The equipment completes the initialization and start-up through the PLC control cabinet 10. Each mesh belt conveyor, cooling fan 5, and photoelectric sensor 8 electrically connected to the PLC control cabinet 10 enters the standby working state and performs automatic control.

[0042] Example 2:

[0043] Based on the above embodiment one, the following settings are now used to enhance the cooling effect.

[0044] See Figures 1-3 In the above embodiment, multiple cooling fans 5 are provided, and there are two groups in total. The multiple cooling fans 5 in each group are distributed in a rectangular array. The rectangular array layout can increase the effective air volume inside the equipment, improve the heat dissipation efficiency, and ensure that the blank has sufficient residence time to complete the full cooling when it moves along the zigzag path.

[0045] Example 3:

[0046] Based on the above embodiment one, the following settings are now implemented to reduce impact damage.

[0047] See Figure 3 and Figure 6 In the above embodiment, the outer rings of the first roller 11 and the second roller 12 are both provided with grooves, and a buffer sleeve 13 is wrapped inside the grooves. The buffer sleeve 13 is made of silicone rubber material, and the diameter of the buffer sleeve 13 is smaller than the diameter of the two ends of the first roller 11 and the second roller 12. The silicone rubber buffer sleeve 13 wrapped inside the grooves of the outer rings of the first roller 11 and the second roller 12 can buffer the impact force when the blank comes into contact with the first roller 11 and the second roller 12, reducing the possibility of collision damage. Moreover, the heat resistance temperature of silicone rubber is higher than that of acrylic and polycarbonate. After a period of cooling, the temperature of acrylic and polycarbonate will be lower than that of silicone rubber, thereby avoiding heat damage to the buffer sleeve 13.

[0048] The implementation principle of this utility model is as follows: First, the equipment completes initialization and startup through the PLC control cabinet 10. All the mesh belt conveyors, cooling fans 5 and photoelectric sensors 8 electrically connected to the PLC control cabinet 10 enter the standby state. The main body of the equipment, as the supporting frame, provides a stable foundation for the installation and operation of all components. Next, the light guide plate blank 9, after injection molding and tempering, is transported by the upstream processing equipment to the first mesh belt conveyor 2 above the inside of the main body of the equipment. If there is a vertical height difference between this equipment and the upstream and downstream equipment, it can be connected by an added inclined mesh belt lifting conveyor or chain plate conveyor, which is a common technical means used by those skilled in the art. The first mesh belt conveyor 2, the second mesh belt conveyor 3 and the third mesh belt conveyor 4 maintain uniform speed operation under the drive of the variable frequency asynchronous motor. The first mesh belt conveyor 2 drives the light guide plate blank 9 to move smoothly to the right side inside the equipment.

[0049] When the light guide plate blank 9 moves to the end of the first mesh belt conveyor 2, it will come into contact with the first rollers 11, which are evenly distributed along a downward slope. This reduces the height difference of the blank from the first mesh belt conveyor 2 to the fourth mesh belt conveyor 6, further reducing collision and friction damage. Furthermore, the first rollers 11 are rotatably connected to the main body 1 of the equipment via externally sleeved bearings 14. The bearings 14 significantly reduce the rotational resistance of the first rollers 11 and 12, allowing them to rotate smoothly with the blank and preventing sliding friction between the blank and the first rollers 11 and 12. Simultaneously, the outer rings of the first rollers 11 and 12... The silicone rubber buffer sleeve 13 wrapped inside the groove can buffer the impact force when the blank comes into contact with the first roller 11 and the second roller 12, reducing the possibility of collision damage; and the larger diameter end of the T-shaped cross section of the first roller 11 and the second roller 12 abuts against the back of the equipment body 1, and with the multiple baffles 15 abutting against the back of the first roller 11 and the second roller 12, it can effectively prevent the first roller 11 and the second roller 12 from falling off the outer surface or back of the equipment body 1 during rotation, ensuring conveying stability; finally, the blank smoothly transitions along the oblique trajectory of the first roller 11 to the top of the fourth mesh belt conveyor 6 in the middle layer inside the equipment body 1;

[0050] At this time, the inclined through-beam photoelectric sensor 8, corresponding to the position of the fourth mesh belt conveyor 6, can accurately detect the presence of the light guide plate blank 9 because its detection range can cover the entire top surface of the fourth mesh belt. It then sends a signal to the PLC control cabinet 10, triggering the start of the fourth mesh belt conveyor 6 driven by the servo motor. The fourth mesh belt conveyor 6 rotates in the opposite direction to the first mesh belt conveyor 2, causing the blank to move smoothly to the left. When the blank completely leaves the fourth mesh belt conveyor 6, the corresponding photoelectric sensor 8 can no longer detect the blank and sends a stop signal to the PLC control cabinet 10. The fourth mesh belt conveyor 6 then stops operating, reducing the impact of the light guide plate blank 9 moving in one direction while the fourth mesh belt conveyor 6 and the fifth mesh belt conveyor 7 move in the opposite direction. To prevent wear and tear, and to avoid wear caused by the light guide plate blank 9 moving towards each other while one end of the blank contacts the fourth mesh belt conveyor 6 and the other end remains on the first roller 11, the fourth mesh belt conveyor 6 can be set to start with a delay. By installing time relays, timers and other timing devices in the PLC control cabinet 10, the two sets of photoelectric sensors 8 can delay for one or two seconds after detecting the light guide plate blank 9 before starting the fourth mesh belt conveyor 6 and the fifth mesh belt conveyor 7, allowing enough time for the light guide plate blank 9 to fall completely onto the fourth mesh belt conveyor 6 and the fifth mesh belt conveyor 7.

[0051] The light guide plate blank 9 is transferred by the fourth mesh belt conveyor 6 to the second mesh belt conveyor 3 in the middle layer inside the main body of the equipment 1. The second mesh belt conveyor 3 also runs at a constant speed under the drive of the variable frequency asynchronous motor, and continues to move the blank to the left to its end. Then, it completes a smooth transition through the second roller 12, which has the same structure as the first roller 11, so that the light guide plate blank 9 is transported to the top of the fifth mesh belt conveyor 7.

[0052] When the blank material transitions to above the fifth mesh belt conveyor 7, another set of photoelectric sensors 8 corresponding to the position of the fifth mesh belt repeats the above detection logic, triggering the fifth mesh belt conveyor 7 to start, driving the blank material to move to the right until it is transferred to the third mesh belt conveyor 4; the third mesh belt conveyor 4 continues to transport the cooled light guide plate blank material 9 to the right, and finally sends it out through the right side of the main body of the equipment to the downstream processing process.

[0053] Throughout the entire conveying process of the light guide plate blank 9, two sets of cooling fans 5 installed on the upper side of one side and the lower side of the other side of the main body 1 always operate synchronously. The airflow generated by the fans forms a wind field inside the main body 1, continuously carrying away the heat from the surface of the blank. The rectangular array layout can increase the effective air volume inside the equipment, improve the heat dissipation efficiency, and ensure that the blank has sufficient time to cool down fully when moving along the zigzag path.

[0054] Meanwhile, during long-term operation of the equipment, if it is necessary to inspect the first roller 11, the second roller 12, the bearing 14, or the buffer sleeve 13, the staff can remove the bolts connecting the baffle 15 to the main body 1 of the equipment, and then easily remove the first roller 11 and the second roller 12 after removing the baffle 15. Since the diameter of the buffer sleeve 13 is smaller than the diameters at both ends of the first roller 11 and the second roller 12, the friction between the buffer sleeve 13 and the first roller 11 and the second roller 12 will not increase during disassembly and assembly, thus reducing the difficulty of maintenance operations.

[0055] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A light guide plate cooling device, comprising a main body (1), characterized in that: The equipment body (1) is equipped with a first mesh belt conveyor (2) at the top inside. The equipment body (1) is equipped with a second mesh belt conveyor (3) and a fourth mesh belt conveyor (6) from left to right. The equipment body (1) is equipped with a third mesh belt conveyor (4) and a fifth mesh belt conveyor (7) from right to left at the bottom inside. The equipment body (1) is equipped with two sets of photoelectric sensors (8) on both sides inside. The equipment body (1) has multiple first rollers (11), multiple second rollers (12) and two sets of baffles (15) passing through its back sides. The first rollers (11) and the second rollers (12) are all fitted with bearings (14).

2. The light guide plate cooling device according to claim 1, characterized in that: The first roller (11) and the second roller (12) are rotatably connected to the main body of the equipment (1) through bearings (14), and the multiple first rollers (11) and multiple second rollers (12) are equidistantly distributed along a downward diagonal line.

3. The light guide plate cooling device according to claim 2, characterized in that: The first roller (11) and the second roller (12) are both T-shaped in cross section. The larger diameter end of the first roller (11) and the second roller (12) abuts against the back of the equipment body (1) and the outer surface of the baffle (15), respectively. The baffle (15) is detached and connected to the equipment body (1) by bolts.

4. The light guide plate cooling device according to claim 1, characterized in that: The two sets of photoelectric sensors (8) correspond to the positions of the fourth mesh belt conveyor (6) and the fifth mesh belt conveyor (7), respectively.

5. The light guide plate cooling device according to claim 4, characterized in that: The photoelectric sensor (8) is a Pepperl+Fuchs OBE20M-R100-S2EP-IO-V31-L through-beam photoelectric sensor, and the photoelectric sensor (8) is tilted.

6. The light guide plate cooling device according to claim 1, characterized in that: The first mesh belt conveyor (2), the second mesh belt conveyor (3) and the third mesh belt conveyor (4) are all driven by variable frequency asynchronous motors, and the fourth mesh belt conveyor (6) and the fifth mesh belt conveyor (7) are all driven by servo motors. The top of the first mesh belt conveyor (2), the second mesh belt conveyor (3), the third mesh belt conveyor (4), the fourth mesh belt conveyor (6) and the fifth mesh belt conveyor (7) are all provided with light guide plate blanks (9).

7. The light guide plate cooling device according to claim 1, characterized in that: Cooling fans (5) are installed on the upper side of one side and the lower side of the other side of the main body of the equipment (1). A PLC control cabinet (10) is installed on one side of the outer surface of the main body of the equipment (1). The first mesh belt conveyor (2), the second mesh belt conveyor (3), the third mesh belt conveyor (4), the cooling fan (5), the fourth mesh belt conveyor (6), the fifth mesh belt conveyor (7) and the photoelectric sensor (8) are all electrically connected to the PLC control cabinet (10).

8. The light guide plate cooling device according to claim 7, characterized in that: The cooling fans (5) are provided in multiple groups, and each group of cooling fans (5) is arranged in a rectangular array.

9. The light guide plate cooling device according to claim 3, characterized in that: The outer rings of the first roller (11) and the second roller (12) are both provided with grooves, and the grooves are wrapped with buffer sleeves (13).

10. The light guide plate cooling device according to claim 9, characterized in that: The buffer sleeve (13) is made of silicone rubber material, and the diameter of the buffer sleeve (13) is smaller than the diameters of the first roller (11) and the two rollers (12).

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