An evaporation coating equipment feeding and discharging device

Abstract

This application discloses a loading and unloading device for an evaporation coating equipment, relating to the technical field of optical device processing. It includes a base and a transport assembly, a lifting assembly, a guard assembly, and a robotic arm. The transport assembly is horizontally disposed on one side of the housing. The guard assembly is disposed on one side of the transport assembly, forming a positioning space adapted to a light guide plate between the guard assembly and the transport assembly. The lifting assembly includes a support platform and a first driving member. The support platform is movably connected to the base in a vertical direction, and the first driving member is used to drive the support platform to move. The robotic arm is disposed between the base and the housing, and includes grippers for clamping and moving multiple stacked light guide plates. This application can effectively improve the efficiency and effect of loading and unloading light guide plates, thereby effectively improving the efficiency and effect of evaporation coating of light guide plates.

Description

Technical Field

[0001] This application relates to the technical field of optical device processing, and in particular to a loading and unloading device for an evaporation coating equipment. Background Technology

[0002] A light guide plate is an optical-grade acrylic / PC sheet material that is widely used in devices or equipment for photography, projection, or viewing, and also plays an important role in fields such as optical components and electronic products.

[0003] Currently, reflective layers are typically formed on the three sides of a light guide plate (excluding the light-incoming surface) using evaporation coating (i.e., sputtering or vacuum coating). This allows light entering the light guide plate from the light-incoming surface to be uniformly emitted outwards from its emitting surface. Before evaporation coating, multiple light guide plates to be processed are usually manually placed into the evaporation coating equipment and evenly arranged around the target material to ensure the effectiveness and efficiency of the subsequent evaporation coating process.

[0004] However, with the improvement of automation level in manufacturing, the limitations of the loading and unloading efficiency of light guide plates in traditional evaporation coating equipment have become increasingly prominent, resulting in the processing efficiency of light guide plates by evaporation coating equipment being increasingly affected.

[0005] Therefore, there is an urgent need to optimize and improve the existing evaporation coating equipment to increase the efficiency of loading and unloading light guide plates. Summary of the Invention

[0006] This application provides a loading and unloading device for an evaporation coating equipment, which can effectively improve the efficiency and effect of loading and unloading light guide plates, thereby effectively improving the efficiency and effect of evaporation coating of light guide plates.

[0007] This application provides a loading and unloading device for an evaporation coating equipment, which adopts the following technical solution:

[0008] A loading and unloading device for an evaporation coating equipment is provided on one side of the evaporation coating equipment, including a base and a transport component, a lifting component, a guard component and a robot arm provided above the base;

[0009] The evaporation coating equipment includes a housing and a cover. The housing has a coating space inside, and the coating space has an opening on one side of the housing. The cover is movably connected to the housing and is used to control the opening and closing of the coating space opening.

[0010] The transport component is horizontally disposed on one side of the housing and located below the cover, and is used to transport the light guide plate to move in the horizontal direction;

[0011] The protective assembly is disposed on one side of the transport assembly along the moving direction of the light guide plate. The protective assembly and the transport assembly form a positioning space adapted to the light guide plate, and the protective assembly forms a barrier on both the side of the positioning space away from the transport assembly and the side away from the housing.

[0012] The lifting assembly includes a support platform and a first driving component;

[0013] The support platform is movably connected to the base in the vertical direction. When it moves upward to its limit position, it is located in the positioning space and its top surface is flush with the transport surface of the transport component. The first driving member is used to drive the support platform to move.

[0014] The robotic arm is disposed between the base and the housing, and includes grippers for moving multiple stacked light guide plates.

[0015] By adopting the above technical solution, the light guide plate to be processed can be transported by the transport component and, under the protection of the shielding component, stacked on the support platform in the positioning space to a certain number. Then, the robot arm will clamp it through multiple claws and send it into the coating space through the opening of the coating space. This can effectively improve the efficiency and effect of light guide plate loading, and similarly, it can also effectively improve the efficiency and effect of light guide plate unloading, thereby effectively improving the efficiency and effect of light guide plate evaporation coating.

[0016] Optionally, the lifting assembly includes several elastic elements;

[0017] The two ends of the elastic element are respectively connected to the support platform and the base, and it has the tendency to drive the support platform to move upward to the limit position; when the support platform supports several light guide plates, the distance of compression of the elastic element is equal to the thickness of the several light guide plates.

[0018] By adopting the above technical solution, after the light guide plate is transported to the support platform, the gravity of the light guide plate will drive the compression elastic element of the support platform to move downwards, which facilitates the stacking of multiple light guide plates after the next light guide plate is transported to the support platform.

[0019] Optionally, the guard assembly includes a first roller group and a second roller group;

[0020] The first roller group includes a plurality of first rotating rollers and a second driving member; the first rotating rollers are rotatably connected to the base and their rotation axis is vertical; the plurality of first rotating rollers are located on the side of the positioning space away from the housing and are equally spaced along the transport direction of the transport assembly; the second driving member is used to drive the plurality of first rotating rollers to rotate synchronously and in the same direction.

[0021] The second roller group includes a plurality of second rotating rollers and a third driving member; the second rotating rollers are rotatably connected to the base and their rotation axis is vertical; the plurality of second rotating rollers are located on the side of the positioning space away from the transport assembly and are equally spaced along a direction perpendicular to the transport direction of the transport assembly; the third driving member is used to drive the plurality of second rotating rollers to rotate synchronously and in the same direction.

[0022] By adopting the above technical solution, after the light guide plate is transported to the position space, the multiple rotating first rollers and multiple rotating second rollers can adjust the position of the light guide plate, so that it can smoothly drive the support platform to move downward and pass through the position space, thereby further improving the effect of multiple light guide plates being neatly stacked above the support platform.

[0023] Optionally, the guard assembly further includes multiple resistance-increasing sleeves;

[0024] Multiple resistance-increasing sleeves are unidirectionally rotatable outside multiple first rotating rollers and multiple second rotating rollers and are evenly distributed along the length direction of the rollers, and each of the multiple resistance-increasing sleeves corresponds to a multiple light guide plate on the support platform.

[0025] The first roller group is used to drive the light guide plate to move toward the direction of the second roller group, and the second roller group is used to drive the light guide plate to move toward the direction of the first roller group.

[0026] By adopting the above technical solution, the first roller group and the second roller group can simultaneously adjust the position of multiple stacked light guide plates, thereby further improving the effect and efficiency of stacking multiple light guide plates neatly in the positioning space.

[0027] Optionally, the transport assembly includes a first transport belt and a second transport belt;

[0028] The first conveyor belt and the second conveyor belt are parallel in their transport directions, and the end of the second conveyor belt near the second roller group is located on the side of the positioning space near the housing.

[0029] By adopting the above technical solution, the probability of the light guide plate being positioned in the paper feeding space under the transport component can be effectively increased, thereby effectively reducing the probability that the light guide plate cannot contact the first roller group or the second roller group after being transported to the support table, and thus effectively improving the reliability and stability of multiple light guide plates being neatly stacked on the support table.

[0030] Optionally, the transport component further includes a fourth drive element and a fifth drive element;

[0031] The first conveyor belt is movably connected to the seat, and its direction of movement is parallel to its own transport direction. The fourth drive component is used to control the movement of the first conveyor belt.

[0032] The second conveyor belt is movably connected to the seat, and its direction of movement is perpendicular to its own transport direction. The fifth drive member is used to control the movement of the second conveyor belt.

[0033] By adopting the above technical solution, the size of the positioning space can be adjusted, thereby accommodating light guide plates of different sizes, and making it easy for light guide plates of different sizes to be stacked neatly in the positioning space.

[0034] Optionally, the transport surface of the second transport belt is inclined downward toward the direction of the first transport belt.

[0035] By adopting the above technical solution, the light guide plate can be transported as a whole by the first conveyor belt before being transported to the positioning space, which further facilitates the transport of the light guide plate to the positioning space and its positioning above the support platform.

[0036] Optionally, the cover is rotatably connected to the shell with its rotation axis being vertical, and it has a clearance space on one side; when the cover moves to its limit position in the direction close to the shell, the clearance space communicates with the coating space.

[0037] The robotic arm is mounted on the cover, and the clearance space allows the robotic arm to be retracted.

[0038] By adopting the above technical solution, the probability of positional interference between the robot and the surrounding structure when the robot is loading and unloading materials on the light guide plate can be reduced, and the probability of the robot affecting the evaporation coating of the light guide plate during the evaporation coating process can also be effectively reduced.

[0039] Optionally, the bottom of the cover has an inclined guide surface;

[0040] When the cover is rotated to its limit position away from the housing, the guide surface is located above the first and second conveyor belts, forming a space between it and the transport surface of the first conveyor belt for the guide plate to pass through, and at this time the guide surface is tilted downward toward the positioning space.

[0041] By adopting the above technical solution, during the process of transporting the light guide plate from under the cover, the guide surface can guide the light guide plate to move towards the direction of the first conveyor belt, thereby further facilitating the transport of the light guide plate to the positioning space and positioning it above the support platform.

[0042] Optionally, both the first roller group and the second roller group have clearance space for the jaws to move through.

[0043] By adopting the above technical solution, the robot arm can easily move multiple light guide plates stacked neatly above the support platform using multiple grippers, thus facilitating the robot arm to load and unload the light guide plates.

[0044] In summary, this application includes at least one of the following beneficial effects:

[0045] 1. It can effectively improve the efficiency and effect of loading and unloading light guide plates, thereby effectively improving the efficiency and effect of evaporation coating on light guide plates;

[0046] 2. It can adapt to light guide plates of different sizes, thereby effectively improving the applicability of evaporation coating equipment to different light guide plates;

[0047] 3. It can neatly stack multiple light guide plates, and can also complete the loading and unloading of multiple light guide plates in a neat stacked state. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the loading and unloading device of an evaporation coating equipment according to an embodiment of this application;

[0049] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0050] Figure 3 This is a top view of the loading and unloading device in the embodiments of this application (the robotic arm is omitted);

[0051] Figure 4 This is a cross-sectional view of multiple light guide plates positioned on a support platform in an embodiment of this application (the robotic arm is omitted).

[0052] Figure 5 This is a cross-sectional view of the support platform in the positioning space when the light guide plate is to be transported and positioned in the embodiment of this application (the robotic arm is omitted).

[0053] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Coating space; 2. Cover; 21. Clearance space; 22. Guide surface; 3. Seat; 4. Transport assembly; 41. First transport belt; 42. Second transport belt; 43. Fourth drive component; 44. Fifth drive component; 5. Lifting assembly; 51. Support platform; 52. First drive component; 53. Elastic component; 6. Guard assembly; 61. First roller group; 611. First rotating roller; 612. Second drive component; 62. Second roller group; 621. Second rotating roller; 622. Third drive component; 63. Resistance increasing sleeve; 7. Robotic arm; 71. Claw; 8. Positioning space. Detailed Implementation

[0054] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0055] This application discloses a loading and unloading device for an evaporation coating equipment, which facilitates the loading and unloading of multiple light guide plates by workers before and after evaporation coating. It has a high degree of automation, which can effectively reduce manpower input. At the same time, it can effectively improve the uniformity and positional accuracy of the distribution of multiple light guide plates inside the evaporation coating equipment after loading, thereby effectively improving the effect and efficiency of subsequent evaporation coating of the light guide plates.

[0056] Reference Figure 1 and Figure 2 The evaporation coating equipment includes a housing 1 and a cover 2.

[0057] The housing 1 is cylindrical in shape with a vertical axis and has a coating space 11 inside for the light guide plate to perform evaporation coating. The coating space 11 is also cylindrical in shape with its axis coinciding with the axis of the housing 1. An opening for loading and unloading the light guide plate is formed on one side of the housing 1 in the radial direction. The cover 2 is rotatably installed on the outside of the housing 1 with its axis of rotation parallel to the axis of the housing 1. When it rotates to its limit position in the direction close to the coating space 11, it seals the opening of the coating space 11, thus sealing the coating space 11. In this embodiment, the target material is preferably installed at the center of the coating space 11, and the housing 1 is uniformly installed around the target material in the coating space 11 with multiple structures for stacking and positioning multiple light guide plates. The stacked multiple light guide plates can move in the coating space 11 in a rotational and revolving manner during the evaporation coating process to ensure the uniformity of the evaporation coating on its three sides. Since the evaporation coating equipment with the above functions is the prior art in this field, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0058] Reference Figure 2 and Figure 3 The loading and unloading device includes a transport component 4 for transporting light guide plates, a lifting component 5 for assisting in the stacking of multiple light guide plates, a guard component 6 for assisting in the neat stacking of multiple light guide plates, a robotic arm 7 for moving the neatly stacked multiple light guide plates, and a base 3 serving as the mounting carrier for the transport component 4, the lifting component 5, and the guard component 6.

[0059] The base 3 is fixedly installed on one side of the housing 1 in the radial direction, and it is close to the opening of the coating space 11; the base 3 is in the form of a cuboid structure, and its width direction is parallel to the orientation of the opening of the coating space 11.

[0060] Reference Figure 4 and Figure 5 The transport component 4 includes a first transport belt 41, a second transport belt 42, a fourth drive component 43, and a fifth drive component 44.

[0061] The first transport belt 41 and the second transport belt 42 are both installed on the top of the base 3, with the first transport belt 41 located on the side of the second transport belt 42 away from the housing 1. The first transport belt 41 is used to transport the light guide plate horizontally along the length of the base 3, and the second transport belt 42 is used to transport the light guide plate along the length of the base 3. The transport surface at the top of the second transport belt 42 is inclined downward toward the first transport belt 41, and the lower end of the inclined transport surface of the second transport belt 42 is flush with the transport surface of the first transport belt 41. In this embodiment, it is preferable that the first transport belt 41 and the second transport belt 42 transport the light guide plate in the same direction and synchronously. Since the first transport belt 41 and the second transport belt 42 with the above functions are common prior art, they will not be described in detail here, and they are only briefly shown in the accompanying drawings.

[0062] The first conveyor belt 41 has a space for installing the lifting assembly 5 on the side near the opening of the coating space 11 along its own transport direction. A positioning space 8 is formed at the location of the lifting assembly 5 for positioning the light guide plate after transport. The light guide plate is positioned in the positioning space 8 with its length direction parallel to the length direction of the base 3. The end of the second conveyor belt 42 near the opening of the coating space 11 along its own transport direction is located on the side of the positioning space 8 near the housing 1. At this time, the light guide plate that is in contact with the transport surface of the second conveyor belt 42 can move along the transport surface of the second conveyor belt 42 towards the transport surface of the first conveyor belt 41 under its own gravity until the light guide plate falls completely onto the transport surface of the first conveyor belt 41, so that the light guide plate can be stably and reliably transported to the positioning space 8.

[0063] The first conveyor belt 41 is movably connected to the base 3, and its direction of movement is parallel to the length direction of the base 3. The fourth drive component 43 is fixedly installed on the base 3 and is used to drive the first conveyor belt 41 to move relative to the base 3, thereby changing the length of the positioning space 8 and adapting to light guide plates of different lengths. In this embodiment, the fourth drive component 43 is preferably a servo cylinder; since servo cylinders are common existing technology, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0064] The second conveyor belt 42 is movably connected to the base 3, and its direction of movement is parallel to the width direction of the base 3. The fifth drive component 44 is fixedly installed on the base 3 and is used to drive the second conveyor belt 42 to move relative to the base 3, thereby changing the width of the positioning space 8 and adapting to light guide plates of different widths. In this embodiment, the fifth drive component 44 is preferably a servo cylinder.

[0065] Reference Figure 2 and Figure 4 The lifting assembly 5 includes a support platform 51, a first driving component 52, and several elastic components 53.

[0066] Reference Figure 4 and Figure 5 The support platform 51 has a rectangular plate-like structure. It is installed on top of the base 3 in a horizontal position and its size is adapted to the minimum size of the positioning space 8. When the support platform 51 moves upward to its limit position, it is located in the positioning space 8, and the top surface of the support platform 51 is flush with the transport surface of the first transport belt 41. When the support platform 51 moves downward to its limit position, it is located below the positioning space 8, and there is space above the support platform 51 for stacking multiple light guide plates.

[0067] The first driving component 52 is fixedly installed on the top of the base 3 and located below the support platform 51. The support platform 51 can move downward to its limit position under its own gravity, and the first driving component 52 is used to drive the support platform 51 upward to its limit position, so that the support platform 51 is located in the positioning space 8, which facilitates the loading of multiple light guide plates stacked above the support platform 51. In this embodiment, the first driving component 52 is preferably a servo cylinder.

[0068] The elastic element 53 is installed between the support platform 51 and the base 3, with its two ends fixedly connected to the support platform 51 and the base 3 respectively, and it has the tendency to drive the support platform 51 to move upward to its limit position. In this embodiment, the elastic element 53 is preferably a compression spring, which is detachably connected between the support platform 51 and the base 3, and it has different specifications and different specifications of elastic elements 53 are adapted to light guide plates of different sizes; when there is no light guide plate on the support platform 51, the support platform 51 can maintain the state of moving upward to its limit position under the action of several elastic elements 53; when there is a light guide plate on the support platform 51, the support platform 51 will overcome the action of several elastic elements 53 under the action of the gravity of several light guide plates and move downward a certain distance, and the downward movement distance is equal to the thickness of several light guide plates, so that the plane above the support platform 51 for positioning the next light guide plate after transportation is flush with the transportation surface of the first transport belt 41.

[0069] Reference Figure 2 and Figure 3 The protective assembly 6 includes a first roller group 61, a second roller group 62, and multiple resistance-increasing sleeves 63. The first roller group 61 and the second roller group 62 together provide a protective effect on the light guide plate around the periphery of the positioning space 8, while the resistance-increasing sleeves 63 are used to allow the first roller group 61 and the second roller group 62 to contact the light guide plate.

[0070] The first roller group 61 is located on the side of the positioning space 8 away from the second conveyor belt 42. It includes a plurality of first rotating rollers 611 and a second driving member 612, and the plurality of first rotating rollers 611 are distributed at equal intervals along the conveying direction of the first conveyor belt 41.

[0071] The first rotating roller 611 has a cylindrical structure and is rotatably mounted on the top of the base 3. Its rotation axis is vertical and coincides with its own axis. The second driving member 612 is fixedly mounted on the base 3 and is used to drive the multiple first rotating rollers 611 to rotate in the same direction and synchronously. In this embodiment, the second driving member 612 is preferably composed of a servo motor and a synchronous belt structure. Since the servo motor and synchronous belt structure are common existing technologies, they will not be described in detail here, and they are only briefly shown in the accompanying drawings.

[0072] The second roller group 62 is located on the side of the positioning space 8 away from the first conveyor belt 41. It includes a plurality of second rotating rollers 621 and a third drive member 622, and the plurality of second rotating rollers 621 are distributed at equal intervals along the width of the seat body 3.

[0073] The second rotating roller 621 has a cylindrical structure and is rotatably mounted on the top of the base 3. Its rotation axis is vertical and coincides with its own axis. The third driving member 622 is fixedly mounted on the base 3 and is used to drive the multiple second rotating rollers 621 to rotate in the same direction and synchronously. In this embodiment, the third driving member 622 is preferably composed of a servo motor and a synchronous belt structure.

[0074] The resistance-increasing sleeve 63 is elastic and has an overall hollow cylindrical structure. It is sleeved and installed on multiple first rotating rollers 611 and multiple second rotating rollers 621. Adjacent resistance-increasing sleeves 63 on the same first rotating roller 611 and the same second rotating roller 621 are independent of each other and are unidirectionally rotatably connected to the corresponding first rotating roller 611 or second rotating roller 621. In this embodiment, it is preferable that the resistance-increasing sleeve 63 forms a unidirectional rotatable connection with the first rotating roller 611 or the second rotating roller 621 through a ratchet structure. Preferably, the axial dimension of the resistance-increasing sleeve 63 is adapted to the thickness dimension of the light guide plate, so that multiple resistance-increasing sleeves 63 on the same first rotating roller 611 and the same second rotating roller 621 will contact different light guide plates respectively. Since the ratchet structure with the above-mentioned function is a common prior art, it will not be described in detail here, and its representation is omitted in the drawings.

[0075] During the process of the second driving member 612 driving multiple first rotating rollers 611 to rotate and the third driving member 622 driving multiple second rotating rollers 621 to rotate, if the light guide plate transported to the positioning space 8 contacts the resistance-increasing sleeve 63 on the first rotating roller 611, the rotating first rotating roller 611 can drive the light guide plate to move towards the second roller group 62 through the resistance-increasing sleeve 63. When the light guide plate moves to the limit position towards the second roller group 62, the first rotating roller 611 continues to rotate, which will drive the resistance-increasing sleeve 63 on the first rotating roller 611 to rotate relative to the first rotating roller 611 and maintain a fixed relative position relative to the light guide plate. Similarly, if the light guide plate transported to the positioning space 8 comes into contact with the resistance-increasing sleeve 63 on the second rotating roller 621, the rotating second rotating roller 621 can drive the light guide plate to move towards the first roller group 61 through the resistance-increasing sleeve 63. When the light guide plate moves to the limit position towards the first roller group 61, the second rotating roller 621 continues to rotate, which will drive the resistance-increasing sleeve 63 on the second rotating roller 621 to rotate relative to the second rotating roller 621 and maintain a fixed relative position relative to the light guide plate.

[0076] At this time, the light guide plate transported to the positioning space 8 can maintain a stable position, which makes it easy for multiple light guide plates to be stacked neatly on the support platform 51 one by one, so that the robot arm 7 can move the multiple stacked light guide plates into the coating space 11.

[0077] Reference Figure 1 and Figure 2 The robotic arm 7 is mounted on the cover 2. One side of the cover 2 has a clearance space 21 for the robotic arm 7 to be housed. When the cover 2 is rotated to its limit position towards the coating space 11, the clearance space 21 communicates with the coating space 11. In this embodiment, the surface of the robotic arm 7 preferably has a coating-preventing treatment. Since both the robotic arm 7 and the coating-preventing treatment are prior art in the art, they will not be described in detail here, and the robotic arm 7 is only briefly shown in the accompanying drawings.

[0078] The end of the robotic arm 7 has multiple movable claws 71. There is space between the resistance-increasing sleeves 63 on the adjacent first rotating rollers 611 in the first roller group 61 and between the resistance-increasing sleeves 63 on the adjacent second rotating rollers 621 in the second roller group 62 for the claws 71 to move through, so that the robotic arm 7 can operate when the cover 2 is rotated open. The multiple claws 71 clamp the multiple neatly stacked light guide plates above the support platform 51 and move them into the coating space 11.

[0079] Reference Figure 2 and Figure 4The cover 2 is restricted in the process of rotating away from the coating space 11. When the cover 2 rotates to the limit position away from the coating space 11, the cover 2 is located above the transport component 4, and at this time the plane where the cover 2 is located is perpendicular to the direction of the transport component 4 transporting the light guide plate.

[0080] The bottom of the cover 2 has a guide surface 22 for guiding the light guide plate to adjust its position during transportation. When the cover 2 is rotated to its limit position away from the coating space 11, the guide surface 22 tilts downward toward the positioning space 8, and a space is formed between the guide surface 22 and the transport surface of the first transport component 4 for the light guide plate to pass through in a horizontal state.

[0081] At this time, when the cover 2 rotates to its limit position away from the coating space 11, the light guide plate transported by the transport component 4 from below the cover 2 can move towards the transport surface of the first transport belt 41 under the guidance of the transport surface 42 and the guide surface 22, so that the light guide plate can be transported to the positioning space 8 in a horizontal position, which facilitates the positioning of the light guide plate on the support platform 51; at the same time, a space is formed on the side of the cover 2 near the positioning space 8 for the robot arm 7 to move multiple neatly stacked light guide plates into and out of the coating space 11. In this embodiment, it is preferable that the robot arm 7 removes the multiple neatly stacked light guide plates after evaporation coating from the coating space 11 and places them on the side of the base 3 away from the housing 1; in other embodiments, the robot arm 7 can also place the multiple neatly stacked light guide plates after evaporation coating in the required position as needed.

[0082] The implementation principle of the loading and unloading device of an evaporation coating equipment according to an embodiment of this application is as follows:

[0083] Before the multiple light guide plates to be evaporated and coated are loaded, the fourth driving component 43 is controlled to adjust the position of the first conveyor belt 41 and the fifth driving component 44 is controlled to adjust the position of the second conveyor belt 42 according to the size of the light guide plate to be evaporated and coated, so that the size of the positioning space 8 is adapted to the size of the light guide plate.

[0084] Next, control the cover 2 to rotate to the limit position in the direction away from the coating space 11, start the first conveyor belt 41, the second conveyor belt 42, the first roller group 61 and the second roller group 62, and at the same time control the first drive member 52 to release the support of the support platform 51, so that the support platform 51 is kept in the positioning space 8 under the action of several elastic members 53.

[0085] Then, the staff roughly places multiple light guide plates at the end of the transport component 4 away from the positioning space 8. The multiple light guide plates will be transported one by one towards the positioning space 8 via the first transport belt 41 and the second transport belt 42. During the transport of the light guide plates, the part of the light guide plate that is in contact with the transport surface of the second transport belt 42 will slide downward along the inclined direction of the transport surface of the second transport belt 42 under its own gravity, so that the light guide plate is transported on the transport surface of the first transport belt 41. At the same time, the guide surface 22 at the bottom of the cover 2 will further guide the light guide plate to adjust its position during the transport process, so that it can be transported to the positioning space 8 in a horizontal position.

[0086] When the light guide plate is transported to the positioning space 8, the first roller group 61 and the second roller group 62 can both protect it and further adjust its position, so that it can smoothly apply pressure to the support platform 51 and smoothly pass through the positioning space 8 in the vertical direction.

[0087] After the light guide plate is transported to the support platform 51, the gravity exerted by the light guide plate on the support platform 51 will drive the support platform 51 to move downward by a distance equal to the thickness of the light guide plate, overcoming the force of several elastic elements 53, until the required number of light guide plates are stacked neatly on the support platform 51.

[0088] Then, the first driving component 52 drives the support platform 51 to move upward to the limit position, and then the robot arm 7 uses multiple claws 71 to clamp and move the multiple light guide plates stacked on the support platform 51 into the coating space 11 and place them in the required position to complete the loading.

[0089] After the evaporation coating is completed, the robot arm 7 uses multiple grippers 71 to clamp and move the multiple light guide plates stacked neatly in the coating space 11 out of the coating space 11, and place the multiple light guide plates after the evaporation coating is completed at the designated position around the housing 1 to complete the unloading.

[0090] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A loading and unloading device for an evaporation coating equipment, disposed on one side of the evaporation coating equipment, characterized in that, It includes a seat (3) and a transport assembly (4), a lifting assembly (5), a guard assembly (6) and a robot arm (7) disposed above the seat (3); The evaporation coating equipment includes a housing (1) and a cover (2). The housing (1) has a coating space (11) inside, and the coating space (11) forms an opening on one side of the housing (1). The cover (2) is movably connected to the housing (1) and is used to control the opening and closing of the opening of the coating space (11). The transport component (4) is horizontally disposed on one side of the housing (1) and located below the cover (2), and is used to transport the light guide plate to move in the horizontal direction; The protective component (6) is disposed on one side of the transport component (4) along the moving direction of the light guide plate. The protective component (6) and the transport component (4) form a positioning space (8) adapted to the light guide plate. The protective component (6) forms a protective barrier on both the side of the positioning space (8) away from the transport component (4) and the side away from the housing (1). The lifting assembly (5) includes a support platform (51) and a first drive component (52); The support platform (51) is movably connected to the seat (3) in the vertical direction. When it moves upward to the limit position, it is located in the positioning space (8) and its top surface is flush with the transport surface of the transport component (4). The first driving member (52) is used to drive the support platform (51) to move. The robotic arm (7) is disposed between the base (3) and the housing (1), and includes a gripper (71) for moving multiple stacked light guide plates. The protective assembly (6) includes a first roller group (61) and a second roller group (62); The first roller group (61) includes a plurality of first rotating rollers (611) and a second driving member (612); the first rotating rollers (611) are rotatably connected to the seat (3) and their rotation axis is vertical; the plurality of first rotating rollers (611) are located on the side of the positioning space (8) away from the housing (1) and are evenly distributed along the transport direction of the transport assembly (4); the second driving member (612) is used to drive the plurality of first rotating rollers (611) to rotate synchronously and in the same direction; The second roller group (62) includes a plurality of second rotating rollers (621) and a third drive member (622); the second rotating rollers (621) are rotatably connected to the seat (3) and their rotation axis is vertical; the plurality of second rotating rollers (621) are located on the side of the positioning space (8) away from the transport component (4) and are equally spaced along a direction perpendicular to the transport direction of the transport component (4); the third drive member (622) is used to drive the plurality of second rotating rollers (621) to rotate synchronously and in the same direction.

2. The loading and unloading device for an evaporation coating equipment according to claim 1, characterized in that, The lifting assembly (5) includes several elastic elements (53); The two ends of the elastic element (53) are connected to the support platform (51) and the base (3) respectively, and it has the tendency to drive the support platform (51) to move upward to the limit position; when the support platform (51) supports several light guide plates, the distance of compression of the elastic element (53) is equal to the thickness of the several light guide plates.

3. The loading and unloading device for an evaporation coating equipment according to claim 1, characterized in that, The protective assembly (6) also includes a plurality of resistance-increasing sleeves (63); Multiple resistance-increasing sleeves (63) are unidirectionally rotatable outside multiple first rotating rollers (611) and multiple second rotating rollers (621) and are evenly distributed along the length direction of the rollers. The multiple resistance-increasing sleeves (63) correspond one-to-one with the multiple light guide plates on the support platform (51). The first roller group (61) is used to drive the light guide plate to move toward the direction of the second roller group (62), and the second roller group (62) is used to drive the light guide plate to move toward the direction of the first roller group (61).

4. The loading and unloading device for an evaporation coating equipment according to claim 1, characterized in that, The transport component (4) includes a first transport belt (41) and a second transport belt (42); The first conveyor belt (41) and the second conveyor belt (42) are parallel in their transport directions, and the end of the second conveyor belt (42) near the second roller group (62) is located on the side of the positioning space (8) near the housing (1).

5. The loading and unloading device for an evaporation coating equipment according to claim 4, characterized in that, The transport component (4) also includes a fourth drive (43) and a fifth drive (44). The first conveyor belt (41) is movably connected to the seat (3), and its direction of movement is parallel to its own transport direction. The fourth drive member (43) is used to control the movement of the first conveyor belt (41). The second conveyor belt (42) is movably connected to the seat (3), and its direction of movement is perpendicular to its own transport direction. The fifth drive member (44) is used to control the movement of the second conveyor belt (42).

6. The loading and unloading device for an evaporation coating equipment according to claim 4, characterized in that, The transport surface of the second transport belt (42) is inclined downward toward the direction of the first transport belt (41).

7. The loading and unloading device for an evaporation coating equipment according to claim 6, characterized in that, The cover (2) is rotatably connected to the shell (1) and its rotation axis is vertical, and it has a clearance space (21) on one side; when the cover (2) moves to its limit position in the direction close to the shell (1), the clearance space (21) communicates with the coating space (11); The robotic arm (7) is mounted on the cover (2), and the clearance space (21) is provided for the robotic arm (7) to be retracted.

8. The loading and unloading device for an evaporation coating equipment according to claim 7, characterized in that, The bottom of the cover (2) has an inclined guide surface (22); When the cover (2) rotates to its limit position away from the housing (1), the guide surface (22) is located above the first conveyor belt (41) and the second conveyor belt (42), forming a space between it and the transport surface of the first conveyor belt (41) for the guide plate to pass through, and at this time the guide surface (22) is tilted downward towards the positioning space (8).

9. The loading and unloading device for an evaporation coating equipment according to claim 1, characterized in that, Both the first roller group (61) and the second roller group (62) have clearance space (21) for the claw (71) to move through.

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