A high-transmittance, low-reflectance polarizing plate processing apparatus

Abstract

The application relates to a high-transmittance and low-reflectivity polaroid processing equipment, which comprises a rack and a polishing mechanism, and further comprises: a rotating disc installed on the rack, the rotating disc comprising a first area and a second area arranged along the circumference of the rotating disc, the first area being located at a feeding and discharging station and the second area being located at an edge polishing station, and the first area being located at the edge polishing station and the second area being located at the feeding and discharging station; a positioning plate comprising a first positioning plate and a second positioning plate; a locking assembly connected with the first positioning plate when the first area is located at the feeding and discharging station, so that the first positioning plate is fixed on the rotating disc, and the locking assembly is separated from the second positioning plate, so that the second positioning plate can be separated from the polaroid in the edge polishing station; a first pressing device comprising a first pressing assembly and a second pressing assembly; and a second pressing device arranged outside the rotating disc and located at the edge polishing station; the problems of low polaroid edge polishing processing efficiency in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of intelligent manufacturing processing, and in particular to a polaroid processing equipment. BACKGROUND

[0002] The full name of a polaroid is a polarized light sheet. The imaging of a liquid crystal display must rely on polarized light. All liquid crystals have two polarized light sheets closely attached to the liquid crystal glass, forming a liquid crystal sheet with a total thickness of about 1 mm. If any one polarized light sheet is missing, the liquid crystal sheet cannot display images. High-transmittance, low-reflectivity polarized light sheets are display technology components with excellent optical performance, mainly used in display devices such as liquid crystal displays (LCDs).

[0003] With the continuous progress of display technology and the expansion of application fields, high-transmittance, low-reflectivity polarized light sheets are increasingly widely used in high-end display fields. For example, in portable electronic devices such as smartphones, tablet computers, and notebook computers, the use of such polarized light sheets can significantly improve display effects and user experiences. Meanwhile, in the field of vehicle-mounted displays, due to the particularity of the driving environment, the performance requirements for polarized light sheets are more stringent. High-transmittance, low-reflectivity polarized light sheets can ensure clear and stable display effects under various lighting conditions, improving driving safety.

[0004] With the continuous expansion of the global consumer electronics market and the increasing demand for high-quality displays from consumers, the market demand for high-transmittance, low-reflectivity polarized light sheets continues to grow. In order to meet market demand, polarized light sheet manufacturing continues to innovate and upgrade products. For example, by introducing new materials and optimizing production processes, the transmittance of polarized light sheets is improved and the reflectivity is reduced.

[0005] The production process of high-transmittance, low-reflectivity polarized light sheets is relatively complex, and the requirements for equipment are relatively high. In the production and processing of existing high-transmittance, low-reflectivity polarized light sheets, after the edges of a stack of polarized light sheets are ground, the interval time to the next stack of polarized light sheets is relatively long, resulting in low production efficiency. SUMMARY

[0006] The purpose of the present application is to provide a high-transmittance, low-reflectivity polarized light sheet processing equipment to solve the problem of low polarized light sheet edge grinding processing efficiency caused by structural defects in the prior art.

[0007] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0008] The application discloses a high-transmittance and low-reflective polaroid processing equipment which comprises a rack and a polishing mechanism, and further comprises a rotating disc horizontally arranged on the rack, wherein the rotating disc comprises a first area and a second area arranged along the circumference of the rotating disc; when the first area is located at a feeding and discharging station, the second area is located at an edge polishing station; when the first area is located at the edge polishing station, the second area is located at the feeding and discharging station; a positioning plate comprising a first positioning plate located in the first area and a second positioning plate located in the second area; a locking assembly connected with the first positioning plate when the first area is located at the feeding and discharging station, so that the first positioning plate is fixed on the rotating disc; the locking assembly is separated from the second positioning plate, so that the second positioning plate can be separated from the polaroid in the edge polishing station; when the first area is located at the edge polishing station, the locking assembly is separated from the first positioning plate, so that the first positioning plate can be separated from the polaroid in the edge polishing station; the locking assembly is connected with the second positioning plate, so that the second positioning plate is fixed on the rotating disc; a first pressing device comprising a first pressing assembly located in the first area and a second pressing assembly located in the second area, wherein the pressing assemblies can press or separate the polaroid in the corresponding area; and a second pressing device arranged outside the rotating disc and located at the edge polishing station, wherein the second pressing device can press or separate the polaroid in the edge polishing area.

[0009] Further, the rotating disc further comprises a third area, and the first area, the second area and the third area are uniformly arranged along the circumference of the rotating disc; the rack is provided with a detection station between the feeding and discharging station and the edge polishing station; the positioning plate further comprises a third positioning plate located in the third area; when the first area / second area / third area is located at the feeding and discharging station, the locking assembly is connected with the positioning plate of the area located at the feeding and discharging station, so that the positioning plate located at the feeding and discharging station is fixed on the rotating disc; the locking assembly is separated from the positioning plates of the areas located at the other two stations, so that the positioning plates of the areas located at the detection station and the edge polishing station can be separated from the polaroid in the corresponding station; and the first pressing device further comprises a third pressing assembly located in the third area, wherein the third pressing assembly can press or separate the polaroid in the third area.

[0010] Further, the rotating disc is provided with a driving rotating assembly in the middle part and a driven rotating assembly at the edge; the driven rotating assembly is provided with three driven rotating assemblies corresponding to the three areas on the rotating disc; a connecting piece is arranged between the driven rotating assembly and the driving rotating assembly, one end of the connecting piece is fixedly connected with the driving rotating assembly, and the other end is rotationally connected with the driven rotating assembly; and a driving assembly for driving the driven rotating assembly to rotate is arranged between the driving rotating assembly and the driven rotating assembly.

[0011] Further, the main rotating assembly comprises a driving motor and a main shaft, the driving motor is fixedly installed on the rack, the main shaft is vertically arranged and rotatably installed on the rack, the top end of the main shaft is fixedly connected with the bottom of the rotating disc, and the bottom end is fixedly connected with the output end of the driving motor, the driven rotating assembly comprises a driven shaft arranged vertically, the connecting piece comprises a first sleeve fixedly sleeved on the main shaft, a second sleeve rotatably sleeved on the driven shaft, and a connecting rod located between the first sleeve and the second sleeve, and two ends of the connecting rod are fixedly connected with the first sleeve and the second sleeve respectively.

[0012] Further, the driving assembly comprises a rotating gear and a third sleeve, the third sleeve is coaxially rotatably sleeved on the bottom of the main shaft, a support is arranged between the bottom of the third sleeve and the rack, two ends of the support are fixedly connected with the third sleeve and the rack respectively, an incomplete gear is fixedly sleeved on the top of the third sleeve, the rotating gears are in one-to-one correspondence with the driven shafts and are fixedly sleeved on the corresponding driven shafts, when the rotating disc drives the first area / second area / third area to rotate from the detection station to the edging station, the rotating gears of the first area / second area / third area are in meshing transmission with the incomplete gear.

[0013] Further, the first positioning plate, the second positioning plate and the third positioning plate are the same in structure, the first positioning plate is an L-shaped plate, a free end of the vertical section of the first positioning plate is provided with an extension plate away from one side of the horizontal section of the first positioning plate, the included angle between the extension plate and the vertical section of the first positioning plate is 90-180°, the driven shaft is rotatably arranged on the rotating disc, and one end of the extension plate away from the first positioning plate is fixedly sleeved on the surface of the part of the driven shaft above the rotating disc.

[0014] Further, the rack is fixedly provided with an annular frame outside the three rotating gears, the inner side of the annular frame is provided with an incomplete tooth section, when the rotating disc drives the first area / second area / third area to rotate from the edging station to the feeding and discharging station, the rotating gears of the first area / second area / third area are in meshing transmission with the incomplete tooth section.

[0015] Further, the locking assembly comprises locking gears and a fixing ring, the locking gears are in one-to-one correspondence with the driven shafts and are fixedly sleeved on the corresponding driven shafts, the fixing ring is fixedly sleeved on the driving shaft, the surface of the fixing ring is provided with a fixing block corresponding to each locking gear in the circumferential direction, the inside of the fixing block is provided with a cavity, the inside end of the cavity is fixed with an electromagnet, an iron block is slidably connected in the cavity, the side of the iron block away from the electromagnet penetrates through the side wall of the cavity and can extend out of the fixing block, the surface of the part of the iron block in the cavity is sleeved with a spring, the two ends of the spring are fixedly connected with the iron block and the side wall of the cavity respectively, when the electromagnet is electrified, repulsion is generated between the electromagnet and the iron block, the iron block extends out of the fixing block and can be clamped into the tooth groove of the locking gear.

[0016] Further, the inside of the driving shaft or the fixing ring is provided with a storage battery, the rack is provided with a mounting plate outside the turntable, the second pressing device is located on the mounting plate, a conductive strip is embedded in the circumferential direction of the turntable on the inside wall of the mounting plate, three pairs of conductive sheets are embedded on the outside wall of the turntable corresponding to three regions, each pair of conductive sheets is two conductive sheets arranged at intervals, the three pairs of conductive sheets are connected in parallel with each other by conductive wires and are commonly connected with the output terminals of the electromagnet and the storage battery; when the first region / second region / third region is located at the feeding / detecting / edging work station by the rotation of the turntable, the two conductive sheets corresponding to the region located at the feeding work station are connected through the conductive strip, the two conductive sheets corresponding to the region located at the detecting work station and the two conductive sheets corresponding to the region located at the edging work station are not connected.

[0017] Further, three partitions are fixed on the upper surface of the turntable, the three partitions are uniformly distributed on the turntable and separate the upper surface of the turntable into the first region, the second region and the third region.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. By arranging the turntable, the feeding, detecting and edging processes can be carried out simultaneously at different work stations, realizing parallel operation between processes. For example, when a stack of polaroid sheets is being polished at the edging work station, the previous stack of polaroid sheets can be taken out and a new stack of polaroid sheets can be placed at the feeding work station at the same time, and another stack of polaroid sheets can be detected at the detecting work station, greatly reducing the waiting time between processes and improving production efficiency. The rotation of the turntable enables continuous operation of each work station without interruption. During the rotation of the turntable, each work station can continuously carry out feeding, detecting and edging operations, forming a continuous production process and further improving production efficiency.

[0020] By integrating the processes of feeding, detecting and edging on a single carousel device, the land area is small. Compared with traditional edging equipment, the carousel design is more compact, which can realize more functions in limited space and improve the space utilization. The division of the area on the carousel can ensure the accuracy of each station, making the positioning of the polarizing sheet more accurate during feeding, detecting and edging, which helps to improve the quality of edging, reduce errors and defective products during edging, and ensure the quality stability and consistency of the products. Other advantages, objects and features of the present application will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following, or can be taught from the practice of the present application, the objects and other advantages of the present application can be achieved and obtained by the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application;

[0022] Figure 2 It is a schematic diagram of the partial structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application;

[0023] Figure 3 It is a schematic diagram of the partial structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application; Figure 2

[0024] Figure 4 It is a schematic diagram of the structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application;

[0025] Figure 5 It is a schematic diagram of the installation structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application, including a driving assembly, a driving assembly and a driving assembly;

[0026] Figure 6 It is a schematic diagram of the partial structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application; Figure 5

[0027] Figure 7 It is a schematic diagram of the structure of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application;

[0028] Figure 8 It is a sectional view of a high-transmittance and low-reflectance polarizing sheet processing equipment according to the present application.

[0029] Among them, the support plate 11, the mounting plate 12, the second pressing device 13;

[0030] The carousel 2, the first area 21, the second area 22, the third area 23, the partition plate 24, the conductive sheet 25, the driving shaft 26; ​​

[0031] First clamping assembly 3, clamping block 31, rotating cylinder 32, slider 33, lead screw 34, worm gear 35, worm 36, rotary motor 37;

[0032] First positioning plate 41, second positioning plate 42, third positioning plate 43, extension plate 44;

[0033] Polarizing film 5;

[0034] First sleeve 61, second sleeve 62, connecting rod 63;

[0035] 71. Fixing ring; 72. Fixing block; 73. Cavity; 74. Electromagnet; 75. Iron block; 76. Spring.

[0036] Driven shaft 81, locking gear 82, rotating gear 83;

[0037] Third sleeve 91, incomplete gear 92, bracket 93, ring frame 94, incomplete tooth segment 95, support rod 96. Detailed Implementation

[0038] The embodiments of this application will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be understood that the preferred embodiments are only for illustrating this application and are not intended to limit the scope of protection of this application.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0040] A high-transmittance, low-reflection polarizing film processing equipment, such as Figures 1 to 8 As shown, the device includes a frame and a grinding mechanism (not shown in the figure). In this embodiment, only the structural schematic diagram of the support plate 11 of the frame is shown. The rest of the frame structure is not shown. It should be noted that the grinding mechanism in this embodiment can move along the X and Y axes on the horizontal plane and can also be raised and lowered to grind the cuboid-shaped polarizing film 5 with ground edges. The structure of the frame and the grinding mechanism has been fully disclosed in the prior art and will not be described in detail here.

[0041] The polarizer processing equipment also includes:

[0042] The rotating disc 2 is horizontally installed on the frame and is rotatable along a preset direction. The rotating disc 2 comprises a first area 21 and a second area 22 arranged along the circumference of the rotating disc 2. When the first area 21 is located at the loading and unloading station, the second area 22 is located at the edging station, and when the first area 21 is located at the edging station, the second area 22 is located at the loading and unloading station. In this embodiment, the first area 21 and the second area 22 can be symmetrically distributed on the two sides of the upper surface of the rotating disc 2, and the loading and unloading station and the edging station are also symmetrically distributed on the two sides of the rotating disc 2. When the first area 21 is located at the loading and unloading station, the first stack of the to-be-edged polarizing plates 5 is loaded into the first area 21 from the loading and unloading station. The rotating disc 2 is rotated by 180°, and the first stack of the to-be-edged polarizing plates 5 in the first area 21 reaches the edging station, so that the edging processing can be performed. At the same time, the second area 22 is rotated from the edging station to the loading and unloading station. When the first stack of the to-be-edged polarizing plates 5 is polished, the second stack of the to-be-edged polarizing plates 5 can be loaded into the loading and unloading station. After the first stack of the polarizing plates 5 is processed, the rotating disc 2 is rotated by 180° again, the second stack of the to-be-edged polarizing plates 5 is rotated to the edging station for processing, and the first stack of the polarizing plates 5 is rotated to the loading and unloading station for unloading. The third stack of the to-be-edged polarizing plates 5 can be loaded, and the above operation is repeated. The continuous loading and continuous edging processing of the polarizing plates 5 can be realized. The polarizing plates 5 can be polished, and the unloading of the polarizing plates 5 and the loading of the to-be-edged polarizing plates 5 can be completed at the same time, so that the edging processing efficiency of the polarizing plates 5 is greatly improved;

[0043] The positioning plate comprises a first positioning plate 41 located in the first area 21 and a second positioning plate 42 located in the second area 22. The first positioning plate 41 and the second positioning plate 42 have the same structure and are used to provide positioning for the to-be-edged polarizing plates 5 to be loaded, so as to facilitate the alignment of the polarizing plates 5;

[0044] The locking assembly is connected with the first positioning plate 41 when the first area 21 is located at the feeding and discharging station, so that the first positioning plate 41 is fixed on the rotating disc 2, at this time, the first positioning plate 41 can position the polaroid 5 in the feeding and discharging station, so that the polaroid 5 is arranged in order, the locking assembly is separated from the second positioning plate 42, so that the second positioning plate 42 can be away from the polaroid 5 in the edge grinding station, after the second positioning plate 42 is away from the polaroid 5 in the edge grinding station, the polishing mechanism can polish the polaroid 5 in the edge grinding station, and the locking assembly is separated from the first positioning plate 41 when the first area 21 is located at the edge grinding station, so that the first positioning plate 41 can be away from the polaroid 5 in the edge grinding station, after the first positioning plate 41 is away from the polaroid 5 in the edge grinding station, the polishing mechanism can polish the polaroid 5 in the edge grinding station, and the locking assembly is connected with the second positioning plate 42, so that the second positioning plate 42 is fixed on the rotating disc 2, at this time, the second positioning plate 42 can position the polaroid 5 in the feeding and discharging station, so that the polaroid 5 is arranged in order;

[0045] The first pressing device includes a first pressing assembly 3 located in the first area 21 and a second pressing assembly located in the second area 22, the first pressing assembly 3 and the second pressing assembly have the same structure, the pressing assembly can press or be away from the polaroid 5 in the corresponding area, and the pressing assembly can press the polaroid 5 from the upper surface of the polaroid 5, so that the polaroid 5 does not move during polishing, and the pressing assembly can be separated from the polaroid 5, so that the polaroid 5 is convenient for feeding and discharging;

[0046] The second pressing device 13 is arranged outside the rotating disc 2 and located at the edge grinding station, the second pressing device 13 can press or be away from the polaroid 5 in the edge grinding area, in the embodiment, the second pressing device 13 can adopt the same structure as the prior art, that is, two cylinders are used as driving force, one cylinder controls the vertical lifting of the pressing block 31, and the other cylinder controls the horizontal movement of the pressing block 31, and the pressing block 31 of the second pressing device 13 is matched with the pressing block 31 of the first pressing device.

[0047] As shown in Figure 1 and Figure 2 , the rotating disc 2 further includes a third area 23, the first area 21, the second area 22 and the third area 23 are uniformly arranged along the circumference of the rotating disc 2, specifically, three transparent partitions 24 are vertically fixed on the upper surface of the rotating disc 2, the three partitions 24 are uniformly distributed on the rotating disc 2 and uniformly separate the upper surface of the rotating disc 2 into the first area 21, the second area 22 and the third area 23, since the debris generated during edge grinding will be scattered and splashed, the partition 24 can block the debris generated during edge grinding, so that the debris can only fall in the area of the edge grinding station, avoiding affecting the work of the remaining two areas, and also facilitating the subsequent cleaning of the debris.

[0048] The rack is provided with a detection station between the feeding and discharging station and the edging station. Specifically, the rack is provided with three stations in the circumferential direction of the turntable 2, which are the feeding and discharging station, the detection station and the edging station in sequence in the rotation direction of the turntable 2. The three stations are uniformly distributed in the circumferential direction of the turntable 2. In the embodiment, the detection station can be detected by sensors, cameras and other components. The detection content can include whether the feeding is missed, the thickness of the polarizing sheet 5, whether the polarizing sheet 5 is in order, etc. An alarm device can also be provided. For example, when the feeding is missed due to the negligence of the staff or other factors, an alarm can be given to remind. Or when mechanical failure occurs, an alarm can also be given to remind.

[0049] The positioning plate further comprises a third positioning plate 43 located in the third area 23.

[0050] In the above embodiment, it should be understood that the third area 23 can be multiple. For example, if the third area 23 is two, the first area 21, the second area 22 and the two third areas 23 form a total of four areas which are evenly distributed on the turntable 2, i.e. each area is 90°. In the embodiment, the third area 23 is preferably one.

[0051] When the first area 21 is located at the feeding and discharging station, the second area 22 is located at the edging station, and the third area 23 is located at the detection station. The locking assembly is separated from the third positioning plate 43, so that the third positioning plate 43 can be away from the polarizing sheet 5 in the detection station. In the embodiment, when the turntable 2 rotates to drive the first area 21 / second area 22 / third area 23 to be located at the feeding and discharging station, the locking assembly is connected with the positioning plate of the area located at the feeding and discharging station, so that the positioning plate located at the feeding and discharging station is fixed on the turntable 2, facilitating feeding. The positioning plates of the areas located at the other two stations are all separated from the locking assembly, so that the positioning plates of the areas located at the detection station and the edging station can be away from the polarizing sheet 5 in the corresponding station.

[0052] The first pressing device further comprises a third pressing assembly located in the third area 23, which can press or move away from the polarizer 5 in the third area 23. In this embodiment, the third pressing assembly has the same structure and function as the first pressing assembly 3. Specifically, in the related art, the pressing device usually uses two cylinders to control the vertical lifting and horizontal movement of the pressing block 31, which facilitates the approach and pressing of the polarizer 5, or loosens and moves away from the polarizer 5. Since the three pressing assemblies will rotate with the turntable 2, if a cylinder is used as the driving source, it is difficult to design the air supply line. Therefore, the vertical lifting of the pressing device in this embodiment uses a motor and a screw rod 34 structure, and drives its rotation through a worm gear 35 and a worm 36 mechanism, so as to move away from the polarizer 5. The third pressing assembly comprises a rotating cylinder 32, which is rotatably installed on the upper surface of the turntable 2 through a bearing. The bottom surface of the rotating cylinder 32 is fixedly sleeved with a worm gear 35. A rotating motor 37 is fixedly arranged on the turntable 2. The output end of the rotating motor 37 is fixedly provided with a worm 36 engaged with the worm gear 35. The rotating motor 37 rotates and drives the rotating cylinder 32 to rotate through the transmission of the worm 36 and the worm gear 35. The bottom of the rotating cylinder 32 is provided with an inner cavity. A power motor (not shown in the figure) is fixedly installed on the inner wall of the inner cavity. An axial sliding cavity is formed in the top of the rotating cylinder 32. A screw rod 34 is rotatably installed in the sliding cavity. The bottom end of the screw rod 34 is fixedly connected with the output end of the power motor. A sliding block 33 is threadedly connected with the surface of the screw rod 34. The sliding block 33 can slide in the vertical direction in the sliding cavity. The sliding block 33 cannot rotate in the sliding cavity. The sliding block 33 extends out of the rotating cylinder 32 on one side and is provided with a pressing block 31. The power motor drives the screw rod 34 to rotate, so as to drive the sliding block 33 and the pressing block 31 to lift in the vertical direction.

[0053] The turntable 2 is provided with a driving rotation assembly in the middle and a driven rotation assembly at the edge. The driven rotation assembly corresponds to three areas on the turntable 2. A connecting piece is arranged between the driven rotation assembly and the driving rotation assembly. One end of the connecting piece is fixedly connected with the driving rotation assembly, and the other end is rotatably connected with the driven rotation assembly. A driving assembly is arranged between the driving rotation assembly and the driven rotation assembly, which drives the driven rotation assembly to rotate.

[0054] In fact, the active rotating assembly can be an active motor and an active shaft 26, the driven rotating assembly can be a driven motor and a driven shaft 81, the active motor is fixedly installed on the rack and located at the bottom of the support plate 11 of the rack, the top end of the active shaft 26 is fixedly connected with the bottom of the rotating disc 2, the bottom end of the active shaft 26 penetrates through the support plate 11 and is fixedly connected with the output end of the active motor, the driven motor is fixedly installed at the edge of the upper surface of the rotating disc 2, the top end of the driven shaft 81 penetrates through the rotating disc 2 and is fixedly connected with the output end of the driven motor, and the bottom end forms a suspended end, the active motor drives the active shaft 26 and the rotating disc 2 to rotate, that is, the driven motor and the driven shaft 81 are driven to revolve around the active shaft 26, meanwhile, the driven shaft 81 can be driven to rotate by the driven motor, so that the driven shaft 81 revolves around the active shaft 26 while performing autorotation.

[0055] In the embodiment, the driving rotating assembly comprises a driving motor and a driving shaft 26. The driving motor is fixedly installed on the rack by bolts. The driving shaft 26 is vertically arranged and rotatably installed on the support plate 11 of the rack by a bearing. The top end of the driving shaft 26 is fixedly connected with the bottom center of the rotating disc 2. The bottom end penetrates through the support plate 11 and is fixedly connected with the output end of the driving motor. The driven rotating assembly comprises a driven shaft 81 arranged vertically. The connecting piece comprises a first sleeve 61 fixedly sleeved on the driving shaft 26, a second sleeve 62 rotatably sleeved on the driven shaft 81 and a horizontal connecting rod 63 located between the first sleeve 61 and the second sleeve 62. The two ends of the connecting rod 63 are fixedly connected with the outer walls of the first sleeve 61 and the second sleeve 62 respectively. The driving assembly comprises a rotating gear 83 and a third sleeve 91. The third sleeve 91 is coaxially and rotatably sleeved on the bottom of the driving shaft 26. A support 93 is arranged between the bottom of the third sleeve 91 and the support plate 11. The two ends of the support 93 are fixedly connected with the outer wall of the third sleeve 91 and the support plate 11 respectively. An incomplete gear 92 is fixedly sleeved on the top of the third sleeve 91. The rotating gear 83 corresponds to the driven shaft 81 one by one and is fixedly sleeved on the corresponding driven shaft 81. When the rotating disc 2 drives the first area 21 / second area 22 / third area 23 to rotate from the detection station to the edging station, the rotating gear 83 is in engagement and transmission with the incomplete gear 92. In the whole process that the rotating disc 2 drives the first area 21 / second area 22 / third area 23 to rotate from the edging station to the detection station, the rotating gear 83 of the area is in engagement and transmission with the incomplete gear 92. Specifically, the teeth of the incomplete gear 92 account for one third of the circumference of the incomplete gear 92. The embodiment takes the first area 21 as an example. First, the first area 21 is located at the feeding and discharging station. At this time, the locking piece is connected with the first positioning plate 41. The first positioning plate 41 is fixed on the rotating disc 2. The workers can stack and place the polarizing plates 5 to be edged in the first positioning plate 41 in an orderly manner. After the polarizing plates 5 are stacked, the first pressing assembly 3 is used to press the polarizing plates 5. When the rotating disc 2 drives the first area 21 to rotate from the feeding and discharging station to the detection station, the locking assembly is separated from the first positioning plate 41. The pressing assembly saves the pressed polarizing plates 5. In the process that the rotating disc 2 drives the first area 21 to rotate from the detection station to the edging station, the rotating gear 83 on the corresponding driven shaft 81 of the first area 21 is in engagement and transmission with the incomplete gear 92. Therefore, the driven shaft 81 rotates around the driving shaft 26 while rotating by itself. The rotation direction of the driven shaft 81 is the same as that of the rotating disc 2, that is, the rotating disc 2 rotates counterclockwise. Therefore, the driven shaft 81 also rotates counterclockwise. Such a structure design is ingenious, reasonable and easy to install.

[0056] The first positioning plate 41, the second positioning plate 42 and the third positioning plate 43 are the same structure, the first positioning plate 41 is an L-shaped plate, the first positioning plate 41 is perpendicular to the turntable 2, the first positioning plate 41 is in sliding fit with the turntable 2, the free end of the vertical section of the first positioning plate 41 is integrally formed with an extension plate 44 on the side away from the horizontal section of the first positioning plate 41, the angle between the extension plate 44 and the vertical section of the first positioning plate 41 is 90-180°, the driven shaft 81 is rotatably arranged on the turntable 2, and the end of the extension plate 44 away from the first positioning plate 41 is fixedly sleeved on the surface of the part of the driven shaft 81 above the turntable 2. It should be noted that when the angle between the extension plate 44 and the vertical section of the first positioning plate 41 is 90°, an arc-shaped chamfer is arranged at the connection between the vertical section of the first positioning plate 41 and the extension plate 44, so as to avoid interference between the first positioning plate 41 and the polaroid 5 when the first positioning plate 41 rotates away from the polaroid 5, and when the angle between the extension plate 44 and the vertical section of the first positioning plate 41 is 180°, that is, the extension plate 44 is collinear with the vertical section of the first positioning plate 41, at this time, the length of the polaroid 5 abutting against one side of the vertical section of the first positioning plate 41 should be less than the total length of the vertical section of the first positioning plate 41 and the extension plate 44. In the embodiment, in the process that the turntable 2 drives the first region 21 to rotate from the detection station to the edging station, the rotating gear 83 on the corresponding driven shaft 81 of the first region 21 is in meshing transmission with the incomplete gear 92, so that the corresponding driven shaft 81 of the first region 21 rotates around the driving shaft 26 while rotating in the same direction as the rotating direction of the turntable 2, that is, the turntable 2 rotates counterclockwise, so that the corresponding driven shaft 81 of the first region 21 also rotates counterclockwise, and the rotating gears 83 of the corresponding driven shafts 81 of the other two regions are not in contact with the incomplete gear 92.

[0057] The frame is fixed with an annular frame 94 outside the three rotating gears 83, specifically, the annular frame 94 is suspended above the supporting plate 11 through a plurality of supporting rods 96, the inner side of the annular frame 94 is provided with an incomplete tooth segment 95, and when the turntable 2 drives the first region 21 / second region 22 / third region 23 to rotate from the edging station to the feeding and discharging station, the rotating gear 83 of the first region 21 / second region 22 / third region 23 is in meshing transmission with the incomplete tooth segment 95. In the embodiment, taking the first region 21 as an example, in the process that the turntable 2 drives the first region 21 to rotate from the edging station to the feeding and discharging station, the rotating gear 83 on the corresponding driven shaft 81 of the first region 21 is in meshing transmission with the incomplete tooth segment 95 on the inner side of the annular frame 94, so that the corresponding driven shaft 81 of the first region 21 rotates around the driving shaft 26 while rotating in the opposite direction to the rotating direction of the turntable 2, that is, the turntable 2 rotates counterclockwise, so that the corresponding driven shaft 81 of the first region 21 rotates clockwise, and the rotating gears 83 of the corresponding driven shafts 81 of the other two regions are not in contact with the incomplete tooth segment 95 of the annular frame 94.

[0058] In the above embodiment, as shown in the figure, the inner side of the first positioning plate 41 faces the center area of ​​the turntable 2.

[0059] In the above embodiments, by designing the size and tooth ratio of the incomplete gear 92 and the rotating gear 83, as well as the size and tooth ratio of the ring frame 94 and the rotating gear 83, the transmission ratio between them can be controlled, thereby controlling the rotation angle of the rotating gear 83 from the detection station to the grinding station. In this embodiment, it is preferably 90°. During the entire process of the first region 21 / second region 22 / third region 23 rotating from the detection station to the grinding station, the driven shaft 81 corresponding to the first region 21 / second region 22 / third region 23 meshes with the incomplete gear 92. Driven by the rotation of the driven shaft 81 corresponding to the first region 21 / second region 22 / third region 23, the first positioning plate 41 / second positioning plate 42 / third positioning plate 43 rotates 90° away from the polarizer 5 (e.g., Figure 1 and Figure 2 (As shown); During the entire process of the first region 21 / second region 22 / third region 23 rotating from the grinding station to the loading and unloading station, the driven shaft 81 corresponding to the first region 21 / second region 22 / third region 23 meshes with the incomplete tooth segment 95 of the ring frame 94. Driven by the rotation of the driven shaft 81 corresponding to the first region 21 / second region 22 / third region 23, the first positioning plate 41 / second positioning plate 42 / third positioning plate 43 rotates 90° toward the polarizer 5, so that the positioning plate is reset.

[0060] The locking assembly includes locking gears 82 and retaining rings 71. Each locking gear 82 corresponds to and is fixedly sleeved on the corresponding driven shaft 81. The retaining ring 71 is fixedly sleeved on the drive shaft 26 and is located above the third sleeve 91. A retaining block 72 is radially arranged on the surface of the retaining ring 71, corresponding to each locking gear 82. The retaining block 72 has a cavity 73 inside, and an electromagnet 74 is fixed to the inner end of the cavity 73. An iron... Block 75, the side of iron block 75 away from electromagnet 74 passes through the side wall of cavity 73 and can extend out of fixed block 72. Spring 76 is sleeved on the surface of the part of iron block 75 located in cavity 73. The two ends of spring 76 are fixedly connected to iron block 75 and side wall of cavity 73 respectively. When electromagnet 74 is energized, a repulsive force is generated between electromagnet 74 and iron block 75. Iron block 75 extends out of fixed block 72 and can be locked into the tooth groove of locking gear 82, so that locking gear 82 and driven shaft 81 cannot rotate.

[0061] The inner part of the driving shaft 26 or the fixed ring 71 is provided with a storage battery (not shown in the figure), and the inner part of the fixed ring 71 is preferably provided with the storage battery, which is convenient for replacing a new storage battery. The mounting plate 12 is fixed to the outer side of the rotating disc 2, the inner wall of the mounting plate 12 matches the outer wall of the rotating disc 2, the mounting plate 12 is in sliding fit with the rotating disc 2, the second pressing device 13 is located on the mounting plate 12, and the inner side wall of the mounting plate 12 is embedded with a conductive strip (not shown in the figure) along the circumferential direction of the rotating disc 2. The outer side wall of the rotating disc 2 is embedded with three pairs of conductive sheets 25 corresponding to three regions, each pair of conductive sheets 25 is two conductive sheets 25 arranged at intervals, and the three pairs of conductive sheets 25 are connected in parallel with each other and are commonly connected with the output end of the electromagnet 74 and the storage battery.

[0062] When the first region 21 / second region 22 / third region 23 is located at the feeding and discharging station, the two conductive sheets 25 corresponding to the region at the feeding and discharging station are in contact with the conductive strip, the circuit is connected, the electromagnet 74 of the region at the feeding and discharging station is powered on, and at least one of the two conductive sheets 25 corresponding to the region at the detection station and the two conductive sheets 25 corresponding to the region at the edge grinding station is not in contact with the conductive strip, and the circuit is not connected.

[0063] In the above embodiment, the length of the conductive strip is preferably one third of the outer circumference of the rotating disc 2, one end of the conductive strip is embedded in the inner wall of the mounting plate 12 corresponding to the position of the feeding and discharging station, and the other end extends to the detection station in the rotating direction of the rotating disc 2. With such a structure, during the rotation of the first region 21 / second region 22 / third region 23 from the feeding and discharging station to the detection station, the conductive sheets 25 corresponding to the first region 21 / second region 22 / third region 23 are always in contact with the conductive strip, and the electromagnet 74 corresponding to the first region 21 / second region 22 / third region 23 is always powered on, and the positioning plate corresponding to the first region 21 / second region 22 / third region 23 is always fixed on the rotating disc 2.

[0064] The working principle of the present application is as follows:

[0065] In the polarizer 5 production line, a batch of polarizers 5 cut to a specified size (usually rectangular) according to customer requirements is moved to the polarizer 5 processing equipment for edge grinding.

[0066] In the initial state, taking the first area 21 located at the feeding and discharging station as an example, at this time, the second area 22 is located at the edging station, and the third area 23 is located at the detection station. First, the worker places the first stack of to-be-edged polaroid 5 inside the first positioning plate 41 and arranges them in order. It should be noted that an edging whiteboard is usually arranged on the upper and lower surfaces of the to-be-edged stack of polaroid 5, so as to facilitate the positioning of the polaroid 5. The first pressing assembly 3 presses the first stack of to-be-edged polaroid 5. At this time, the two conductive sheets 25 corresponding to the first area 21 are in contact with the conductive strip. The electromagnet 74 corresponding to the first area 21 is electrified and the iron block 75 is clamped into the locking gear 82 corresponding to the first area 21. The driven shaft 81 corresponding to the first area 21 can only revolve around the driving shaft 26.

[0067] The driving motor drives the driving shaft 26 and the turntable 2 to rotate counterclockwise by 120°. The first area 21 rotates from the feeding and discharging station to the detection station. During the entire rotation process, the two conductive sheets 25 of the first area 21 always maintain contact with the conductive strip. The first positioning plate 41 is fixed on the turntable 2 and rotates together with the turntable 2.

[0068] When the first area 21 reaches the detection station, one of the conductive sheets 25 of the first area 21 is just separated from the conductive strip, the corresponding electromagnet 74 of the first area 21 is powered off, the corresponding driven shaft 81 of the first area 21 can rotate, after the detection is completed without error, the turntable 2 continues to rotate by 120°, the first area 21 rotates from the detection station to the edge grinding station, in this process, the rotating gear 83 of the first area 21 is engaged with the incomplete gear 92, the rotating gear 83 and the driven shaft 81 of the first area 21 rotate around the driving shaft 26 at the same time, so that the first positioning plate 41 rotates 90° away from the first stack of polarizing plates 5 with the driven shaft 81 of the first area 21 as the rotation center, when the first positioning plate 41 reaches the edge grinding station, it has been separated from the first stack of polarizing plates 5, and the polishing mechanism can immediately start the edge grinding process, during the whole process of the first area 21 rotating from the feeding and discharging station to the edge grinding station, the first pressing assembly 3 always presses the first stack of polarizing plates 5 to be ground, when the polishing mechanism finishes grinding the three outer edges of the first stack of polarizing plates 5, the second pressing device 13 presses the first stack of polarizing plates 5, the first pressing assembly 3 is released and rotates away from the first stack of polarizing plates, then the polishing mechanism continues to grind the first stack of polarizing plates 5, after the grinding is completed, the surface of the processed first stack of polarizing plates 5 is cleaned by air gun blowing, then the second pressing device 13 is released, the turntable 2 rotates by 120° again, and the first area 21 rotates from the edge grinding station to the feeding and discharging station, in this process, the rotating gear 83 of the first area 21 is engaged with the incomplete gear segment 95 of the annular frame 94, the rotating gear 83 and the driven shaft 81 of the first area 21 rotate around the driving shaft 26 at the same time, the first positioning plate 41 rotates by 90° and returns to the initial position, at the same time, when the first area 21 reaches the feeding and discharging station, the electromagnet 74 corresponding to the first area 21 is powered on again, so that the reset first positioning plate 41 is fixed on the turntable 2 again, the first stack of polarizing plates 5 after edge grinding is taken out and the next stack of polarizing plates 5 to be ground is placed, completing a processing cycle of the first area 21, and repeating the above operation can realize continuous production and processing of the polarizing plates 5, greatly improving the production efficiency.

[0069] The high-transmittance and low-reflectivity polarizing plate processing equipment provided by the present application has at least the following advantages:

[0070] 1. Improved production efficiency:

[0071] Parallel operation: The design of the turntable 2 enables the feeding and discharging, detection and edge grinding processes to be performed simultaneously at different stations, realizing parallel operation between processes. For example, when a stack of polarizing plates 5 is being polished at the edge grinding station, the feeding and discharging station can simultaneously take out the previous stack of polarizing plates 5 and place a new stack of polarizing plates 5, and the detection station can also detect another stack of polarizing plates 5, greatly reducing the waiting time between processes and improving production efficiency.

[0072] Continuous production: The rotation of the turntable 2 allows the operations of each station to be carried out continuously without interruption. During the rotation of the turntable 2, each station can continuously carry out the feeding, detection, and edge grinding operations, forming a continuous production process and further improving the production efficiency.

[0073] 2. Space saving: The feeding, detection, and edge grinding processes are integrated on the turntable 2 device, which occupies a small area. Compared with traditional edge grinding processing equipment, the turntable 2 design is more compact, can realize more functions in limited space, and improves the space utilization rate.

[0074] 3. Improve product quality:

[0075] Precise positioning: The indexing positioning system of the turntable 2 can ensure the accuracy of each station, making the positioning of the polarizing sheet 5 during feeding, detection, and edge grinding more accurate. This helps to improve the quality of edge grinding and reduce errors and defective products during the edge grinding process.

[0076] 4. Easy to operate:

[0077] High degree of automation: The turntable 2 device can be equipped with an automatic control system to realize automatic operation and control. The operator only needs to perform simple feeding and unloading operations and monitor the running state of the equipment, reducing the complexity and labor intensity of manual operation.

[0078] Easy to maintain: The turntable 2 device has a simple structure and tight connections between components, making it easy to maintain and maintain. At the same time, the device has fewer fault points and is easy to repair, reducing the maintenance and use costs of the device.

[0079] In summary, the polarizing sheet processing equipment of the present application adopts a turntable 2 multi-station design, which is an efficient, energy-saving, flexible, and easy-to-operate production method with great advantages and application prospects. The polarizing sheet mentioned in this embodiment is a high-transmittance, low-reflectance polarizing sheet.

[0080] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or transformations made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A high-transmittance, low-reflection polarizing film processing equipment, comprising a frame and a grinding mechanism, characterized in that, Also includes: A turntable, which is horizontally mounted on a frame, includes a first area and a second area, which are arranged along the circumference of the turntable. When the turntable rotates, the first area is located at the loading / unloading station, and the second area is located at the edge grinding station. When the first area is located at the edge grinding station, the second area is located at the loading / unloading station. The positioning plate includes a first positioning plate located in the first region and a second positioning plate located in the second region; The locking assembly is configured such that when the first area is located at the loading / unloading station, the locking assembly is connected to the first positioning plate, fixing the first positioning plate on the turntable; the locking assembly is separated from the second positioning plate, allowing the second positioning plate to move away from the polarizer in the grinding station; and when the first area is located at the grinding station, the locking assembly is separated from the first positioning plate, allowing the first positioning plate to move away from the polarizer in the grinding station; the locking assembly is connected to the second positioning plate, fixing the second positioning plate on the turntable. The first pressing device includes a first pressing component located in the first region and a second pressing component located in the second region, wherein the pressing component is capable of pressing or moving away from the polarizer in the corresponding region; The second clamping device is located outside the turntable and at the edge grinding station. The second clamping device can clamp or move away from the polarizer in the edge grinding area.

2. The device according to claim 1, characterized in that: The turntable also includes a third area. The first area, the second area and the third area are evenly arranged along the circumference of the turntable. The frame is provided with a detection station between the loading and unloading station and the edge grinding station. The positioning plate also includes a third positioning plate located within the third area; When the turntable rotates and drives the first / second / third area to the loading / unloading station, the locking component connects to the positioning plate in the area of ​​the loading / unloading station, so that the positioning plate in the loading / unloading station is fixed on the turntable. The locking component separates from the positioning plate in the other two stations, so that the positioning plate in the inspection station and the edge grinding station can move away from the polarizer in the corresponding station. The first clamping device further includes a third clamping component located in the third region, the third clamping component being capable of clamping or moving away from the polarizer in the third region.

3. The device according to claim 2, characterized in that: The turntable has an active rotating component in the middle and a driven rotating component at the edge. The driven rotating components are arranged in three areas corresponding to the three areas on the turntable. A connecting member is provided between the driven rotating component and the active rotating component. One end of the connecting member is fixedly connected to the active rotating component, and the other end is rotatably connected to the driven rotating component. A drive component for driving the driven rotating component to rotate is provided between the active rotating component and the driven rotating component.

4. The device according to claim 3, characterized in that: The active rotation assembly includes a drive motor and a drive shaft. The drive motor is fixedly mounted on the frame. The drive shaft is vertically arranged and rotatably mounted on the frame. The top end of the drive shaft is fixedly connected to the bottom of the turntable, and the bottom end is fixedly connected to the output end of the drive motor. The driven rotation assembly includes a vertically arranged driven shaft. The connecting member includes a first sleeve fixedly sleeved on the drive shaft, a second sleeve rotatably sleeved on the driven shaft, and a connecting rod located between the first sleeve and the second sleeve. The two ends of the connecting rod are fixedly connected to the first sleeve and the second sleeve, respectively.

5. The device according to claim 4, characterized in that: The drive assembly includes a rotating gear and a third sleeve. The third sleeve is coaxially rotatably mounted on the bottom of the drive shaft. A bracket is provided between the bottom of the third sleeve and the frame. The two ends of the bracket are fixedly connected to the third sleeve and the frame, respectively. An incomplete gear is fixedly mounted on the top of the third sleeve. The rotating gear corresponds one-to-one with the driven shaft and is fixedly mounted on the corresponding driven shaft. When the turntable rotates, it drives the first area to rotate from the inspection station to the edge grinding station. The rotating gear in the first area meshes with the incomplete gear for transmission. When the turntable rotates, it drives the second area to rotate from the inspection station to the edge grinding station. The rotating gear in the second area meshes with the incomplete gear for transmission. When the turntable rotates, it drives the third area to rotate from the inspection station to the edge grinding station. The rotating gear in the third area meshes with the incomplete gear for transmission.

6. The device according to claim 5, characterized in that: The first positioning plate, the second positioning plate, and the third positioning plate have the same structure. The first positioning plate is an L-shaped plate. An extension plate is provided on the side of the vertical section of the first positioning plate away from the horizontal section of the first positioning plate. The angle between the extension plate and the vertical section of the first positioning plate is 90-180°. The driven shaft is rotatably mounted on the turntable. The end of the extension plate away from the first positioning plate is fixedly sleeved on the surface of the driven shaft located above the turntable.

7. The device according to claim 6, characterized in that: The frame has an annular frame fixed to the outside of the three rotating gears. The inner side of the annular frame has incomplete tooth segments. When the turntable rotates and drives the first area to rotate from the edge grinding station to the loading and unloading station, the rotating gear of the first area meshes with the incomplete tooth segments for transmission. When the turntable rotates and drives the second area to rotate from the edge grinding station to the loading and unloading station, the rotating gear of the second area meshes with the incomplete tooth segments for transmission. When the turntable rotates and drives the third area to rotate from the edge grinding station to the loading and unloading station, the rotating gear of the third area meshes with the incomplete tooth segments for transmission.

8. The device according to claim 4, characterized in that: The locking assembly includes locking gears and retaining rings. The locking gears correspond one-to-one with the driven shafts and are fixedly sleeved on the corresponding driven shafts. The retaining rings are fixedly sleeved on the drive shafts. A retaining block is provided on the surface of the retaining ring along the circumferential direction for each locking gear. The retaining block has a cavity inside. An electromagnet is fixed to the inner end of the cavity. An iron block is slidably connected inside the cavity. The side of the iron block away from the electromagnet passes through the sidewall of the cavity and can extend out of the retaining block. A spring is sleeved on the surface of the part of the iron block located inside the cavity. The two ends of the spring are fixedly connected to the iron block and the sidewall of the cavity, respectively. When the electromagnet is energized, a repulsive force is generated between the electromagnet and the iron block. The iron block extends out of the retaining block and can be engaged in the tooth groove of the locking gear.

9. The device according to claim 8, characterized in that: A battery is installed inside the drive shaft or fixed ring. A mounting plate is installed on the outside of the turntable on the frame. The second clamping device is located on the mounting plate. A conductive strip is embedded in the inner side wall of the mounting plate along the circumference of the turntable. Three pairs of conductive sheets are embedded in the outer side wall of the turntable in three areas. Each pair of conductive sheets consists of two conductive sheets arranged at intervals. The three pairs of conductive sheets are connected in parallel to each other through wires and are electrically connected to the output terminals of the electromagnet and the battery. When the turntable rotates and drives the first / second / third area to the loading / unloading station, the two conductive sheets corresponding to the area at the loading station are connected by a conductive strip, while the two conductive sheets corresponding to the area at the detection station and the two conductive sheets corresponding to the area at the edge grinding station are not connected.

10. The device according to claim 2, characterized in that: Three partitions are fixed on the upper surface of the turntable. The three partitions are evenly distributed on the turntable and divide the upper surface of the turntable into the first region, the second region and the third region.

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