Polarizer processing equipment and processing technology thereof

Abstract

The invention relates to polaroid machining equipment and a machining process thereof, and belongs to the technical field of polaroid machining, the polaroid machining equipment comprises an operation platform, an adsorption mechanism, a limiting mechanism and a driving device, the operation platform is provided with a plurality of vertically-through adsorption holes, and two limiting blocks movably arranged on the upper side of the operation platform; the adsorption mechanism adsorbs the polaroid placed on the upper side of the operation platform through the adsorption hole, the limiting mechanism limits the polaroid placed on the upper side of the operation platform through the limiting block, the driving device is in transmission connection with the adsorption mechanism and the limiting mechanism, and when the driving device is started, the adsorption mechanism and / or the limiting mechanism are / is started. The invention relates to a polaroid machining device, in particular to a polaroid machining device which solves the problems that when an existing polaroid is machined, the polaroid needs to be limited, a traditional mechanical limiting device is not suitable for limiting the polaroid, if the polaroid slides in the machining process, the machining quality of the polaroid can be affected, the working efficiency becomes low, meanwhile, machining errors can be caused, and raw materials are wasted.

Description

Technical Field

[0001] The invention belongs to the technical field of polarizer processing, and in particular relates to polarizer processing equipment and a processing technology thereof. Background Art

[0002] The full name of polarizer is polarizing film. The imaging of LCD must rely on polarized light. All liquid crystals have two polarizing films in the front and back attached to the liquid crystal glass, forming a liquid crystal film with a total thickness of about 1mm.

[0003] At present, when processing polarizers, they need to be limited. Since polarizers are relatively thin, traditional mechanical limit devices are not suitable for limiting the polarizers. If the polarizers slip during processing, it will affect the processing quality of the polarizers, which will not only reduce work efficiency, but also cause processing errors and waste raw materials. Summary of the invention

[0004] In order to solve the problem that when processing a polarizer, it is necessary to limit the polarizer. Since the polarizer is relatively thin, the traditional mechanical limit device is not suitable for limiting the polarizer. If the polarizer slides during processing, it will affect the processing quality of the polarizer, which not only reduces the work efficiency but also causes processing errors and wastes raw materials. The present invention provides a polarizer processing device and a processing technology thereof.

[0005] The purpose of the present invention can be achieved through the following technical solutions: In the first aspect, the present invention provides a polarizer processing equipment, including an operating platform, an adsorption mechanism, a limiting mechanism and a driving device, wherein the operating platform is provided with a plurality of adsorption holes extending upward and downward, and two limiting blocks movably arranged on the upper side of the operating platform; the adsorption mechanism is connected to the lower side of the adsorption hole so as to adsorb the polarizer placed on the upper side of the operating platform through the adsorption hole; the limiting mechanism is connected to the limiting block so as to limit the polarizer placed on the upper side of the operating platform through the limiting block; the driving device is transmission-connected to the adsorption mechanism and the limiting mechanism, and when the driving device is started, the adsorption mechanism and / or the limiting mechanism are started.

[0006] As a preferred technical solution of the present invention, the adsorption mechanism includes a cylinder body, a piston, a first screw and an air suction hood, one end opening of the air suction hood is connected to the upper part of the cylinder body, and the other end opening of the air suction hood is connected to the lower part of the adsorption hole; the piston is movably arranged in the cylinder body along the vertical direction; the first screw passes through the bottom of the cylinder body and the piston; the first screw is rotatably connected to the cylinder body through a bearing, and the first screw is threadedly matched with the threaded hole opened in the piston; the first screw is transmission-connected to the output end of the driving device.

[0007] As a preferred technical solution of the present invention, a clutch coupling is provided between the output shaft of the driving device and the first screw, and a torque sensor is installed at the output shaft of the driving device; When the torque sensor detects that the rotational resistance of the output shaft of the driving device is greater than or equal to a preset value, the clutch coupling releases the linkage between the output shaft of the driving device and the first screw.

[0008] As a preferred technical solution of the present invention, the output shaft of the driving device is connected to a first bevel gear; the limiting mechanism includes a second screw, a second bevel gear and a transmission assembly, and the two sides of the second screw are respectively provided with a positive thread segment and a negative thread segment, and the two limiting blocks are respectively threadedly matched with the positive thread segment and the negative thread segment; the second bevel gear is meshed with the first bevel gear; and the transmission assembly is arranged between the second bevel gear and the second screw.

[0009] As a preferred technical solution of the present invention, two linear guide grooves with the same length direction are provided on the operating platform, the second screw passes through the two linear guide grooves in sequence along the length direction of the linear guide grooves, and the positive thread segment and the negative thread segment are respectively located in the two linear guide grooves; the two limit blocks are respectively embedded in the two linear guide grooves; and the plurality of adsorption holes are at least arranged in the area between the two linear guide grooves.

[0010] As a preferred technical solution of the present invention, the transmission assembly includes a first synchronous wheel, a second synchronous wheel and a transmission belt, the first synchronous wheel is coaxially connected to the second bevel gear, the second synchronous wheel is coaxially connected to the second screw, and the transmission belt is wound around the first synchronous wheel and the second synchronous wheel.

[0011] As a preferred technical solution of the present invention, the lengths of the positive thread segment and the negative thread segment are the same, and the distance from the positive thread segment to the center of the second screw is the same as the distance from the negative thread segment to the center of the second screw; the distances from the two limit blocks to the center of the second screw are the same.

[0012] As a preferred technical solution of the present invention, it also includes a visual sensor, which is used to detect the matching relationship between the two limit blocks and the polarizer. When the two limit blocks respectively contact the two sides of the polarizer, the driving device stops working; And / or, it also includes a pressure sensor arranged on opposite sides of the two limit blocks, and the pressure sensor is used to detect the contact pressure between the limit blocks and the polarizer. When the contact pressure between the limit blocks and the polarizer is greater than or equal to a preset pressure, the driving device stops working.

[0013] As a preferred technical solution of the present invention, it also includes a controller, which is electrically connected to the driving device and is provided with a start button, a pause button and a reset button.

[0014] In a second aspect, the present invention provides a polarizer processing technology, which is applied to the polarizer processing equipment described in the first aspect, including: Place the polarizer on the upper side of the operating platform; The driving device is started, the adsorption mechanism provides adsorption force for the polarizer through the adsorption hole, and the limiting mechanism drives the two limiting blocks to move so that the polarizer is clamped and limited; The driving device stops, the polarizer continues to be adsorbed on the upper side of the operating platform, and the two limit blocks clamp the polarizer; The driving device is reset, the adsorption mechanism releases the negative pressure relationship between the adsorption hole and the polarizer, and the limiting mechanism drives the two limiting blocks to move to release the clamping limit of the polarizer.

[0015] The beneficial effects of the present invention are: This solution can firmly fix the polarizer through the dual functions of the adsorption mechanism and the limiting mechanism, effectively avoid the sliding of the polarizer during the processing, improve the processing quality and product qualification rate, and solve the problem that the polarizer needs to be limited when it is processed. Since the polarizer is relatively thin, the traditional mechanical limiting device is not suitable for limiting the polarizer. If the polarizer slides during processing, it will affect the processing quality of the polarizer, which will not only reduce the work efficiency, but also cause processing errors and waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a polarizer processing device of the present invention; Figure 2 A schematic diagram of the internal structure of a polarizer processing device of the present invention; Figure 3 This is a schematic diagram of the second screw structure of a polarizer processing device of the present invention; Figure 4 The present invention is a flow chart of a polarizer processing technology.

[0018] Description of main symbols In the figure: 10, operating platform; 11, adsorption hole; 12, limit block; 13, linear guide groove; 20, adsorption mechanism; 21, cylinder body; 22, first screw; 23, piston; 24, suction hood; 25, clutch coupling; 30, limit mechanism; 31, second bevel gear; 32, second screw; 321, positive thread section; 322, negative thread section; 33, transmission assembly; 331, first synchronous wheel; 332, second synchronous wheel; 333, transmission belt; 40, driving device; 41, first bevel gear; 50, start button; 51, pause button; 52, reset button. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] See also Figure 1-3 The present embodiment provides a polarizer processing device, including an operating platform 10, an adsorption mechanism 20, a limiting mechanism 30 and a driving device 40. The operating platform 10 is provided with a plurality of adsorption holes 11 extending vertically therethrough, and two limiting blocks 12 movably arranged on the upper side of the operating platform 10; the adsorption mechanism 20 is connected to the lower side of the adsorption hole 11 to adsorb the polarizer placed on the upper side of the operating platform 10 through the adsorption hole 11; the limiting mechanism 30 is connected to the limiting block 12 to limit the polarizer placed on the upper side of the operating platform 10 through the limiting block 12; the driving device 40 is transmission-connected to the adsorption mechanism 20 and the limiting mechanism 30. When the driving device 40 is started, the adsorption mechanism 20 and / or the limiting mechanism 30 are started.

[0027] It can be understood that the adsorption hole 11 on the operating platform 10 is connected to the adsorption mechanism 20. When the adsorption mechanism 20 is started, negative pressure is formed at the adsorption hole 11, and the atmospheric pressure difference is used to tightly adsorb the polarizer placed on the operating platform 10, thereby achieving preliminary fixation of the polarizer and preventing it from sliding over a large area during the processing; the limit blocks 12 are connected through the limit mechanism 30, and the limit mechanism 30 can drive the two limit blocks 12 to move away from or close to each other on the operating platform 10, so that the polarizer is clamped and limited from both sides, further limiting the movement of the polarizer and ensuring its precise position in the processing area.

[0028] In a feasible implementation, the operator or the mechanical equipment of the previous process places the polarizer to be processed on the upper side of the operating platform 10 to ensure that its position is roughly within the predetermined processing area; the driving device 40 is turned on, and the driving device 40 simultaneously drives the adsorption mechanism 20 and the limiting mechanism 30 to work together; specifically, the adsorption mechanism 20 is started, and the adsorption force is generated on the polarizer through the adsorption hole 11, and the polarizer is initially fixed on the operating platform 10. At the same time, the limiting mechanism 30 drives the two limiting blocks 12 to move on the operating platform 10, so that the polarizer is clamped and limited from both sides, and the position of the polarizer is further fixed to prevent it from sliding during the processing. Under the joint action of the adsorption mechanism 20 and the limiting mechanism 30, the polarizer is stably fixed on the operating platform 10, and other components of the processing equipment (such as cutting tools, grinding tools, etc.) can perform precise processing operations on the polarizer, such as cutting and edge grinding. After the processing is completed, the driving device 40 controls the adsorption mechanism 20 and the limiting mechanism 30 to stop working, the adsorption force disappears, and the limiting block 12 is reset. At this time, the processed polarizer can be removed from the operating platform 10.

[0029] In some embodiments, the adsorption mechanism 20 includes a cylinder 21, a piston 23, a first screw 22 and an air suction hood 24, one end of the air suction hood 24 is opened and connected to the upper part of the cylinder 21, and the other end of the air suction hood 24 is opened and connected to the lower part of the adsorption hole 11; the piston 23 is movably arranged in the cylinder 21 along the vertical direction; the first screw 22 passes through the bottom of the cylinder 21 and the piston 23; the first screw 22 is rotatably connected to the cylinder 21 through a bearing, and the first screw 22 is threadedly matched with the threaded hole opened in the piston 23; the first screw 22 is transmission-connected to the output end of the driving device 40. It should be explained that the internal space of the cylinder 21 is provided with a vertical limiting structure, and the vertical limiting structure enables the piston 23 to only move in the vertical direction in the cylinder 21, so that when the driving device 40 is started, the rotation of the first screw 22 can be converted into the displacement movement of the piston 23 in the vertical direction that is threadedly matched with it. Optionally, the internal space of the cylinder 21 is in the shape of a multi-prism, the cross section of the piston 23 is polygonal, and the outer periphery of the piston 23 fits with each wall surface of the internal space of the cylinder 21, and the vertical limiting structure is the multiple wall surfaces of the internal space of the cylinder 21. Optionally, the vertical limiting structure can also be a vertical guide rail provided in the internal space of the cylinder 21, and the piston 23 slides with the vertical guide rail.

[0030] It is understandable that the piston 23 divides the internal space of the cylinder 21 into two parts, the upper part and the lower part, and the space of the upper part is connected to the suction hood 24. When the driving device 40 is started, the rotation of the first screw 22 drives the piston 23 to move downward in the vertical direction in the cylinder 21, so that the space in the upper part of the cylinder 21 is expanded, the internal air pressure is reduced, and negative pressure is formed; at this time, the external atmospheric pressure is greater than the air pressure in the upper part of the cylinder 21, and the air will flow into the upper part of the cylinder 21 through the adsorption hole 11 to balance the air pressure; and when the polarizer is placed on the adsorption hole 11, the inflow of air will be blocked, so that the polarizer is adsorbed by the atmospheric pressure on the upper side of the operating platform 10. When the driving device 40 is started and drives the piston 23 to move upward, the adsorption relationship of the adsorption hole 11 to the polarizer will be released.

[0031] In some embodiments, a clutch coupling 25 is provided between the output shaft of the driving device 40 and the first screw 22, and a torque sensor is installed at the output shaft of the driving device 40; when the torque sensor detects that the rotational resistance of the output shaft of the driving device 40 is greater than or equal to a preset value, the clutch coupling 25 releases the linkage between the output shaft of the driving device 40 and the first screw 22. Preferably, the preset value is determined according to the rotational resistance of the output shaft of the driving device 40 when the target polarizer is completely adsorbed when the first screw 22 is linked to the output shaft of the driving device 40, and the value can be measured by the user during the equipment calibration stage, which will not be described in detail here.

[0032] It can be understood that the clutch coupling 25 is a transmission device that can engage or disengage the two shafts as required. Under normal circumstances, the clutch coupling 25 connects the output shaft of the driving device 40 with the first screw 22, so that the two rotate synchronously, driving the piston 23 to move to achieve the adsorption or desorption function. When the rotation resistance detected by the torque sensor reaches a preset value, the friction plate or electromagnetic device inside the clutch coupling 25 will act quickly to separate the two shafts, cut off the power transmission, and prevent the piston 23 from continuing to move and generating excessive adsorption force on the polarizer.

[0033] In a feasible implementation, when the driving device 40 is not started, the clutch coupling 25 is in an engaged state, and the output shaft of the driving device 40 is linked with the first screw 22. At this time, the piston 23 is located at the upper part of the cylinder 21, the adsorption hole 11 is connected to the outside atmosphere, and the operating platform 10 has no adsorption force, so the polarizer can be placed on the operating platform 10. When the driving device 40 is started, the output shaft drives the first screw 22 to rotate, and the piston 23 moves downward in the vertical direction under the action of the first screw 22. The space on the cylinder 21 is expanded to form a negative pressure, and the polarizer begins to be adsorbed. The torque sensor monitors the rotation resistance of the output shaft in real time. When the rotation resistance of the output shaft reaches the preset value, it indicates that the polarizer has been completely adsorbed. At this time, the clutch coupling 25 is released, and the driving device 40 stops driving the first screw 22, and the adsorption process is completed. When it is necessary to release the adsorption, the driving device 40 is started in the reverse direction, the output shaft drives the first screw 22 to rotate in the reverse direction, the piston 23 moves upward, the space on the cylinder 21 is reduced, the air pressure is restored to balance, the adsorption force disappears, and the polarizer can be removed from the operating platform 10. This embodiment can accurately control the adsorption process through the cooperation of the torque sensor and the clutch coupling 25, ensure that the polarizer is firmly and appropriately adsorbed on the operating platform 10 during the processing, improve the processing accuracy and quality, and reduce the processing error and polarizer damage caused by improper adsorption force.

[0034] In some embodiments, the output shaft of the driving device 40 is connected to the first bevel gear 41; the limiting mechanism 30 includes a second screw 32, a second bevel gear 31 and a transmission assembly 33, and the two sides of the second screw 32 are respectively provided with a positive thread segment 321 and a reverse thread segment 322, and the two limiting blocks 12 are respectively threadedly engaged with the positive thread segment 321 and the reverse thread segment 322; the second bevel gear 31 is meshed with the first bevel gear 41; the transmission assembly 33 is arranged between the second bevel gear 31 and the second screw 32; when the driving device 40 is started, its output shaft drives the first bevel gear 41 to rotate, and then drives the second screw 32 to rotate through the second bevel gear 31 and the transmission assembly 33, and the rotation of the second screw 32 is converted into the two limiting blocks 12 approaching or moving away from each other, so as to complete the clamping, limiting or releasing of the polarizer. It should be noted that when the drive device 40 is started and drives the piston 23 to move downward to generate negative pressure in the adsorption hole 11, the output shaft of the drive device 40 drives the second screw 32 to rotate simultaneously through the first bevel gear 41, the second bevel gear 31 and the transmission assembly 33, so that the two limit blocks 12 are close to each other to clamp and limit the polarizer. It can be understood that the output shaft of the drive device 40 and the first screw 22 are both arranged in the vertical direction, and the second screw 32 is arranged in the horizontal direction. It should be explained that when the clutch coupling 25 is released from linkage, since the first bevel gear 41 is connected to the output shaft of the drive device 40, the drive device 40 can still drive the two limit blocks 12 to approach each other to clamp and limit the polarizer. This is based on the general operation that the polarizer is often first adsorbed and positioned, and then clamped and limited by the limit block 12.

[0035] In a feasible implementation, when the driving device 40 is not started, the limit block 12 is located at the initial position, the second screw 32 is in a stationary state, the adsorption mechanism 20 is not working, and the polarizer can be freely placed on the operating platform 10. When the driving device 40 is started, its output shaft drives the first bevel gear 41 to rotate, and the first bevel gear 41 meshes with the second bevel gear 31, so that the second bevel gear 31 rotates accordingly, and the rotation of the second bevel gear 31 is transmitted to the second screw 32 through the transmission assembly 33, driving the second screw 32 to rotate; because the positive thread segment 321 and the negative thread segment 322 on both sides of the second screw 32 are threadedly matched with the two limit blocks 12, when the second screw 32 rotates, the two limit blocks 12 will make opposite linear motions along the axis direction of the screw and approach each other, thereby clamping and limiting the polarizer placed on the operating platform 10. Thus, in this embodiment, while the driving device 40 drives the adsorption mechanism 20 to move the piston 23 downward to generate negative pressure in the adsorption hole 11 to adsorb the polarizer, the two limit blocks 12 of the limit mechanism 30 also move in a direction close to each other through the bevel gear transmission, so as to achieve the clamping and limiting of the polarizer, so that the polarizer is adsorbed and fixed, and is also accurately clamped by the limit blocks 12, ensuring its stability and precise position during the processing. When the processing is completed, the driving device 40 rotates in the opposite direction, and the second screw 32 rotates in the opposite direction through the transmission system, and the two limit blocks 12 move away from each other along the axis direction of the second screw 32, releasing the clamping and limiting of the polarizer, and at the same time, the adsorption mechanism 20 releases the adsorption, and the polarizer can be removed from the operating platform 10.

[0036] In some embodiments, the operating platform 10 is provided with two linear guide grooves 13 of the same length direction, the second screw 32 sequentially passes through the two linear guide grooves 13 along the length direction of the linear guide groove 13, and the positive thread section 321 and the negative thread section 322 are respectively located in the two linear guide grooves 13; two limit blocks 12 are respectively embedded in the two linear guide grooves 13; and a plurality of adsorption holes 11 are at least arranged in the area between the two linear guide grooves 13. It can be understood that the linear guide groove 13 provides a track for the limit block 12 to move linearly, the limit block 12 is embedded in the linear guide groove 13, its bottom is tightly fitted with the groove bottom, and the side is slidably matched with the groove wall, when the second screw 32 rotates, the limit block 12 moves linearly along the length direction of the linear guide groove 13 under the action of the thread, and realizes the action of approaching or moving away from each other. Further, a plurality of adsorption holes 11 are arranged in the area between the two linear guide grooves 13, which is usually the part of the polarizer that needs to be fixed and processed, and can effectively ensure the stability and precise position of the polarizer during the processing.

[0037] In some embodiments, the transmission assembly 33 includes a first synchronous wheel 331, a second synchronous wheel 332 and a transmission belt 333. The first synchronous wheel 331 is coaxially connected to the second bevel gear 31, the second synchronous wheel 332 is coaxially connected to the second screw 32, and the transmission belt 333 is wound around the first synchronous wheel 331 and the second synchronous wheel 332. It can be understood that the first synchronous wheel 331 is coaxially connected to the second bevel gear 31, and the second synchronous wheel 332 is coaxially connected to the second screw 32. When the second bevel gear 31 rotates, it drives the first synchronous wheel 331 to rotate coaxially, and the first synchronous wheel 331 drives the second synchronous wheel 332 to rotate through the transmission belt 333, thereby rotating the second screw 32. The transmission method of the first synchronous wheel 331, the second synchronous wheel 332 and the transmission belt 333 can accurately transmit power to the second screw 32, ensure the linear motion accuracy of the limit block 12, and enable the polarizer to be accurately clamped at a predetermined position, effectively improve the processing accuracy, and reduce the processing error caused by inaccurate limit.

[0038] In some embodiments, the lengths of the positive thread segment 321 and the negative thread segment 322 are the same, and the distances from the positive thread segment 321 to the center of the second screw 32 and the distances from the negative thread segment 322 to the center of the second screw 32 are the same; the distances from the two limit blocks 12 to the center of the second screw 32 are the same. In this embodiment, by setting the lengths of the positive thread segment 321 and the negative thread segment 322 to be the same, and making them equal in distance to the center of the second screw 32, and ensuring that the distances from the two limit blocks 12 to the center of the second screw 32 are the same, it can be ensured that when the second screw 32 rotates, the two limit blocks 12 perform symmetrical linear motion with the center of the second screw 32 as the symmetrical point, ensuring the symmetrical motion of the limit blocks 12 and the application of uniform clamping force, effectively improving the accuracy and stability of the polarizer limit, reducing the processing errors caused by the asynchronous movement or uneven force of the limit blocks 12, and improving the qualified rate of the product.

[0039] In some embodiments, a visual sensor is further included, which is used to detect the matching relationship between the two limit blocks 12 and the polarizer. When the two limit blocks 12 respectively contact the two sides of the polarizer, the driving device 40 stops working; and / or, a pressure sensor is further included, which is arranged on the opposite sides of the two limit blocks 12. The pressure sensor is used to detect the contact pressure between the limit blocks 12 and the polarizer. When the contact pressure between the limit blocks 12 and the polarizer is greater than or equal to the preset pressure, the driving device 40 stops working. It can be understood that the visual sensor can perform real-time image acquisition and processing of the relative position of the limit blocks 12 and the polarizer through devices such as cameras or photoelectric elements. When the two limit blocks 12 respectively contact the two sides of the polarizer, the visual sensor can identify the matching relationship between the limit blocks 12 and the polarizer, determine whether the limit blocks 12 have reached the predetermined clamping position, and transmit the signal to the controller to trigger the driving device 40 to stop working.

[0040] In a feasible implementation, when the driving device 40 is not started, the limit block 12 is located at the initial position, the visual sensor and the pressure sensor are in a standby state, and the polarizer can be placed on the operating platform 10. When the driving device 40 is started, the limit blocks 12 are driven by the second screw 32 to approach each other and gradually move to both sides of the polarizer. During this process, the visual sensor monitors the matching relationship between the limit block 12 and the polarizer in real time. When the limit block 12 contacts both sides of the polarizer, the visual sensor sends a signal, and the controller controls the driving device 40 to stop working, and the limit block 12 stops moving, completing the precise clamping and limiting of the polarizer.

[0041] In a feasible implementation, when the driving device 40 is not started, the limit block 12 is located at the initial position, the visual sensor and the pressure sensor are in a standby state, and the polarizer can be placed on the operating platform 10. When the limit block 12 contacts the polarizer and begins to apply pressure, the pressure sensor detects the contact pressure in real time. Once the pressure value reaches or exceeds the preset pressure, the pressure sensor transmits a signal to the control system, and the control system immediately controls the driving device 40 to stop working and the limit block 12 to stop moving, thereby completing the precise clamping and limiting of the polarizer.

[0042] In some embodiments, a controller is also included, and the controller is electrically connected to the drive device 40. The controller is provided with a start button 50, a pause button 51 and a reset button 52. It is understandable that the controller in this embodiment is also electrically connected to the torque sensor, the clutch coupling 25, the visual sensor and / or the pressure sensor, and is used to receive and process the collected information of each sensor and issue operation instructions to the drive device 40 and the clutch coupling 25. It is understandable that during the operation of the polarizer processing equipment of this embodiment, the torque sensor detects the rotation resistance of the output shaft of the drive device 40 in real time, and transmits the signal to the controller. When the resistance reaches the preset value, the controller determines that the polarizer has been completely adsorbed, and then sends a command to release the linkage to the clutch coupling 25, and stops the drive device 40 from driving the adsorption mechanism 20. The visual sensor monitors the matching relationship between the limit block 12 and the polarizer. When the limit block 12 contacts the two sides of the polarizer, it sends a signal to the controller. After receiving this signal, the controller controls the drive device 40 to stop working, and completes the precise clamping and limiting of the polarizer. The pressure sensor detects the contact pressure between the limit block 12 and the polarizer. When the pressure reaches or exceeds the preset pressure, a signal is sent to the controller. After receiving the signal, the controller controls the driving device 40 to stop working, thereby completing the precise clamping and limiting of the polarizer.

[0043] In a feasible implementation, if the operator presses the start button 50 on the controller, the controller will send a start command to the drive device 40, and the drive device 40 will start working, driving the adsorption mechanism 20 and / or the limit mechanism 30 to perform corresponding actions. At the same time, the controller starts to receive and process the signals transmitted by each sensor, and monitors the operating status of the equipment in real time. If the pause button 51 is pressed, the controller immediately sends a stop command to the drive device 40, and the various components of the equipment stop working. If the equipment needs to be restarted, press the start button 50 again. When the equipment is abnormal or needs to restart, press the reset button 52, and the controller restores the various components of the equipment to the initial state, ready to resume processing operations.

[0044] The present invention provides a polarizer processing technology, which is applied to polarizer processing equipment, including: S100, placing the polarizer on the upper side of the operating platform.

[0045] In some embodiments, an operator or an automated robot places the polarizer on the upper side of the operating platform, ensuring that the polarizer is roughly within the predetermined processing area and has a flat surface without defects such as wrinkles or bubbles. It should be noted that during the placement process, excessive pressure or scratches on the polarizer should be avoided, and at the same time, the polarizer should be well attached to the operating platform so that the adsorption mechanism can effectively adsorb and fix it.

[0046] S200, the driving device is started, the adsorption mechanism provides adsorption force for the polarizer through the adsorption hole, and the limiting mechanism clamps and limits the polarizer by driving the two limiting blocks to move.

[0047] In some embodiments, after the driving device is started, the piston of the adsorption mechanism moves downward under the drive of the first screw, so that the adsorption hole generates negative pressure, thereby providing adsorption force for the polarizer, and at this time, the polarizer is tightly adsorbed on the upper side of the operating platform. At the same time, the second screw of the limiting mechanism rotates under the drive of the driving device, and through the transmission of the positive thread segment and the reverse thread segment, the two limiting blocks approach each other along the linear guide groove, gradually move to both sides of the polarizer, and finally clamp the polarizer to limit the position.

[0048] S300, the driving device stops, the polarizer is continuously adsorbed on the upper side of the operating platform, and the two limit blocks clamp the polarizer.

[0049] In some embodiments, after the polarizer is adsorbed and limited, the driving device stops working. At this time, the adsorption mechanism continues to provide adsorption force to the polarizer through the adsorption hole, and the limit block also maintains the clamping state of the polarizer, so that the polarizer is always in a predetermined position during the processing and will not slide or move.

[0050] S400, the driving device is reset, the adsorption mechanism releases the negative pressure relationship between the adsorption hole and the polarizer, and the limiting mechanism drives the two limiting blocks to move to release the clamping limit of the polarizer.

[0051] In some embodiments, after the processing is completed, the driving device needs to be reset to release the adsorption and clamping limit of the polarizer, so as to facilitate the removal of the processed polarizer from the operating platform. Specifically, the driving device is started in reverse, driving the piston of the adsorption mechanism to move upward, so that the negative pressure relationship between the adsorption hole and the polarizer is released, and the adsorption force disappears; at the same time, the second screw of the limit mechanism rotates in the opposite direction under the drive of the driving device, so that the two limit blocks move away from each other along the linear guide groove, and the clamping limit of the polarizer is released. Thus, the processed polarizer can be easily removed from the operating platform, ready for the next step of processing or inspection.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A polarizer processing device, characterized in that: The invention comprises an operating platform, an adsorption mechanism, a limiting mechanism and a driving device, wherein the operating platform is provided with a plurality of adsorption holes penetrating from top to bottom, and two limiting blocks movably arranged on the upper side of the operating platform; the adsorption mechanism is connected to the lower side of the adsorption hole so as to adsorb the polarizer placed on the upper side of the operating platform through the adsorption hole; the limiting mechanism is connected to the limiting block so as to limit the polarizer placed on the upper side of the operating platform through the limiting block; the driving device is transmission-connected to the adsorption mechanism and the limiting mechanism, and when the driving device is started, the adsorption mechanism and / or the limiting mechanism are started.

2. The polarizer processing equipment according to claim 1, characterized in that: The adsorption mechanism includes a cylinder body, a piston, a first screw and an air suction hood, wherein one end opening of the air suction hood is connected to the upper part of the cylinder body, and the other end opening of the air suction hood is connected to the lower part of the adsorption hole; the piston is movably arranged in the cylinder body along the vertical direction; the first screw passes through the bottom of the cylinder body and the piston; the first screw is rotatably connected to the cylinder body through a bearing, and the first screw is threadedly matched with the threaded hole provided in the piston; the first screw is transmission-connected to the output end of the driving device.

3. The polarizer processing equipment according to claim 2, characterized in that: A clutch coupling is provided between the output shaft of the driving device and the first screw, and a torque sensor is installed at the output shaft of the driving device; When the torque sensor detects that the rotational resistance of the output shaft of the driving device is greater than or equal to a preset value, the clutch coupling releases the linkage between the output shaft of the driving device and the first screw.

4. The polarizer processing equipment according to claim 2, characterized in that: The output shaft of the driving device is connected to the first bevel gear; the limiting mechanism includes a second screw, a second bevel gear and a transmission assembly, and the two sides of the second screw are respectively provided with a positive thread segment and a negative thread segment, and the two limiting blocks are respectively threadedly matched with the positive thread segment and the negative thread segment; the second bevel gear is meshed with the first bevel gear; the transmission assembly is arranged between the second bevel gear and the second screw.

5. The polarizer processing equipment according to claim 4, characterized in that: The operating platform is provided with two linear guide grooves with the same length direction, the second screw rod passes through the two linear guide grooves in sequence along the length direction of the linear guide grooves, and the positive thread segment and the negative thread segment are respectively located in the two linear guide grooves; the two limit blocks are respectively embedded in the two linear guide grooves; and the plurality of adsorption holes are at least arranged in the area between the two linear guide grooves.

6. The polarizer processing equipment according to claim 4, characterized in that: The transmission assembly includes a first synchronous wheel, a second synchronous wheel and a transmission belt. The first synchronous wheel is coaxially connected to the second bevel gear, the second synchronous wheel is coaxially connected to the second screw, and the transmission belt is wound around the first synchronous wheel and the second synchronous wheel.

7. The polarizer processing equipment according to claim 4, characterized in that: The lengths of the positive thread segment and the negative thread segment are the same, and the distance from the positive thread segment to the center of the second screw is the same as the distance from the negative thread segment to the center of the second screw; the distances from the two limit blocks to the center of the second screw are the same.

8. The polarizer processing equipment according to claim 1, characterized in that: It also includes a visual sensor, which is used to detect the matching relationship between the two limit blocks and the polarizer. When the two limit blocks respectively contact the two sides of the polarizer, the driving device stops working; And / or, it also includes a pressure sensor arranged on opposite sides of the two limit blocks, and the pressure sensor is used to detect the contact pressure between the limit blocks and the polarizer. When the contact pressure between the limit blocks and the polarizer is greater than or equal to a preset pressure, the driving device stops working.

9. The polarizer processing equipment according to claim 1, characterized in that: The device also includes a controller which is electrically connected to the driving device and is provided with a start button, a pause button and a reset button.

10. A polarizer processing process, characterized in that: The polarizer processing equipment used in any one of claims 1 to 9 comprises: Place the polarizer on the upper side of the operating platform; The driving device is started, the adsorption mechanism provides adsorption force for the polarizer through the adsorption hole, and the limiting mechanism drives the two limiting blocks to move so that the polarizer is clamped and limited; The driving device stops, the polarizer continues to be adsorbed on the upper side of the operating platform, and the two limit blocks clamp the polarizer; The driving device is reset, the adsorption mechanism releases the negative pressure relationship between the adsorption hole and the polarizer, and the limiting mechanism drives the two limiting blocks to move to release the clamping limit of the polarizer.

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