Cutting device for polaroid processing

Abstract

The invention relates to the technical field of diaphragm cutting, in particular to a cutting device for polaroid processing, which comprises a cutting table, a feeding mechanism and a cutting and pressing mechanism are arranged on the cutting table, the cutting and pressing mechanism is arranged in the middle of the cutting table, the feeding mechanism is arranged on one side of the top end of the cutting table, and the cutting mechanism is arranged on the other side of the top end of the cutting table. A feeding mechanism is arranged on the cutting table, a magnetic attraction fixing mechanism is arranged on the feeding mechanism, the magnetic attraction fixing mechanism is matched with the feeding mechanism in a magnetic attraction mode so as to fix the polaroid, and the cutting pressing mechanism comprises a supporting frame arranged on the cutting table and further comprises a hydraulic cutting assembly arranged on the supporting frame. The first pressing assembly and the second pressing assembly are arranged on the two sides of the hydraulic cutting assembly, and the problems that according to an existing polaroid cutting technology, obvious defects exist in the fixing mode, the cutting precision and the production efficiency are affected, and bad influences are possibly caused to the quality of polaroids are solved.

Description

Technical Field

[0001] The invention relates to the technical field of film cutting, and more specifically, to a cutting device for processing polarizing films. Background Art

[0002] In the current polarizer processing process, cutting is a crucial link. Polarizers are widely used in fields such as liquid crystal displays, and have extremely high requirements for their dimensional accuracy and flatness. However, the current polarizer cutting technology still has some shortcomings in this link. Specifically, in order to ensure cutting accuracy, the traditional cutting method is usually to fix the four sides of the polarizer on the cutting board with tape. Although this fixing method seems simple, there are many problems in actual operation.

[0003] First of all, when fixing the polarizer, you need to ensure that it remains flat. This is a very meticulous and time-consuming task, because once the four sides are fixed, if it is found that there is bulging in the middle of the polarizer, it needs to be re-fixed, which will undoubtedly greatly increase the workload and production costs.

[0004] Secondly, there is an inherent defect in the tape fixing method, that is, the tape may remain on the surface of the polarizer, which will have a certain impact on its quality, especially in the processing of polarizers with high precision requirements, this impact may be more significant. In addition, the stickiness of the tape may also cause certain damage to the polarizer, further affecting its use effect.

[0005] In summary, the current polarizer cutting technology has obvious deficiencies in the fixing method, which not only affects the cutting accuracy and production efficiency, but may also have an adverse effect on the quality of the polarizer. In order to solve the above problems, a cutting device for polarizer processing is proposed. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a cutting device for processing polarizers to solve the problem mentioned in the background technology that the current polarizer cutting technology has obvious deficiencies in the fixing method, which not only affects the cutting accuracy and production efficiency, but also may have an adverse effect on the quality of the polarizer.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A cutting device for processing polarizers, comprising a cutting table, on which a feeding mechanism and a cutting and pressing mechanism are arranged, and the cutting and pressing mechanism is arranged in the middle of the cutting table, and the feeding mechanism is arranged on one side of the top of the cutting table, and a magnetic fixing mechanism is arranged on the feeding mechanism, and the magnetic fixing mechanism and the feeding mechanism are magnetically matched, so as to fix the polarizer; The cutting and clamping mechanism comprises a support frame arranged on the cutting table, a hydraulic cutting assembly arranged on the support frame, and a first clamping assembly and a second clamping assembly arranged on both sides of the hydraulic cutting assembly; The first clamping assembly is perpendicular to the top of the cutting table, the second clamping assembly is rotatably connected to the hydraulic cutting assembly, and the initial position is inclined; A control panel is provided on one side of the support frame, and the control panel is electrically connected to the feeding mechanism and the cutting and pressing mechanism; The polarizer is placed on the feeding mechanism and fixed by a magnetic fixing mechanism. Then the feeding mechanism feeds the polarizer to the cutting and pressing mechanism multiple times at equal distances along the length direction of the cutting table. The cutting and pressing mechanism presses and flattens the polarizer that is fed in advance through the first pressing component and the second pressing component and presses down to complete the cutting.

[0008] The present invention is further configured such that the hydraulic cutting assembly includes a hydraulic column arranged on the support frame, a horizontal plate arranged at the telescopic end of the hydraulic column, and a cutting knife fixedly installed at the bottom end of the horizontal plate.

[0009] The present invention is further configured such that the first clamping assembly includes a telescopic rod disposed on a side of the horizontal plate away from the feeding mechanism, a sleeve rod sleeved on an end of the telescopic rod away from the horizontal plate, and a return spring disposed in the sleeve rod; A clamping plate is arranged at one end of the sleeve rod away from the telescopic rod, and the bottom end of the clamping plate is made of rubber material. The distance from the initial position of the clamping plate to the cutting table is smaller than the distance from the cutting knife to the cutting table.

[0010] The present invention is further configured such that two ends of the bottom end of the horizontal plate on one side away from the first clamping assembly are provided with rotating ears, and the second clamping assembly is rotatably mounted on the rotating ears; The second clamping assembly includes a rotating plate rotatably mounted on the rotating ear, a torsion spring disposed on the rotating plate, and a clamping roller disposed on an end of the rotating plate away from the rotating ear; The rotating plate is rotatably connected via a rotating shaft and a rotating ear, the torsion spring is sleeved on the rotating shaft of the rotating plate, and two ends of the torsion spring are fixedly connected to the rotating plate and the rotating ear respectively.

[0011] The present invention is further configured such that an adjustment slot is provided on the horizontal plate, and a slider is slidably installed in the adjustment slot, the slider is in an I-shape, and a connecting rod is provided at the top of the slider, an electric cylinder is fixedly installed on the horizontal plate, and the electric cylinder and the connecting rod are fixedly connected; The bottom end of the sliding block is fixedly connected to the telescopic rod.

[0012] The present invention is further configured such that a sliding groove is provided on the cutting table, and the sliding groove and the feeding mechanism are slidably matched; The feeding mechanism includes an electric slide rail arranged at the bottom end of the cutting table, a pneumatic clamp arranged on the electric slide rail, and a film cutting plate arranged on the cutting table; The magnetic fixing mechanism is arranged on the diaphragm cutting plate, and the diaphragm cutting plate is made of magnetic material, and the magnetic fixing mechanism and the diaphragm cutting plate are magnetically matched.

[0013] The present invention is further configured such that a positioning baffle plate which is perpendicular to the diaphragm cutting plate is provided on one side of the diaphragm cutting plate close to the cutting knife, and the magnetic fixing mechanism is provided on the positioning baffle plate.

[0014] The present invention is further configured such that a driving groove is provided on the positioning baffle, and a linear array of gear blocks is provided on one side of an inner wall of the driving groove.

[0015] The present invention is further configured such that the magnetic attraction fixing mechanism includes a gear movably mounted in the driving slot, and also includes anti-slip blocks arranged at both ends of the gear, and a reeling rod arranged on the anti-slip block on one side and a soft magnetic strip arranged on the reeling rod; The gear and the tooth block are meshed, and the soft magnetic strip and the diaphragm cutting plate are magnetically matched.

[0016] The present invention is further configured such that one end of the soft magnetic strip is fixedly connected to the diaphragm cutting plate; The driving groove is arranged in an inclined manner, and one end of the driving groove close to the fixed connection between the soft magnetic strip and the diaphragm cutting plate is higher than the other end.

[0017] Compared with the prior art, the present invention provides a cutting device for processing polarizers, which has the following beneficial effects: 1. In the present invention, by using the first clamping assembly and the second clamping assembly together, the polarizer is stretched flat in the length direction of the cutting table before cutting, thereby avoiding the polarizer from bulging in the length direction when cutting. Therefore, only one side of the polarizer in the length direction of the cutting table needs to be initially fixed, thereby improving the efficiency of fixing the polarizer.

[0018] 2. The magnetic fixing mechanism of the present invention adopts a method of stretching a rolled soft magnetic strip to fix the polarizer on one side, which is not only easy to operate, but also can naturally smooth the polarizer during the stretching process to ensure the flatness of its unilateral fixation, thereby avoiding the problem of bulging in the width direction of the polarizer when it is initially fixed, resulting in a decrease in cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of a cutting device for processing polarizers.

[0020] Figure 2 This is a schematic diagram of the structure of a cutting device for processing polarizers, viewed from the bottom up.

[0021] Figure 3 This is a schematic diagram of the structure of the cutting and pressing mechanism of the cutting device for polarizer processing.

[0022] Figure 4 This is a schematic diagram of the exploded structure of the first clamping assembly of the cutting device for polarizer processing.

[0023] Figure 5 This is a schematic diagram of the exploded structure of the second clamping assembly of the cutting device for polarizer processing.

[0024] Figure 6 This is a schematic diagram of the structure of a film cutting plate, a positioning baffle and a magnetic fixing mechanism of a cutting device for processing polarizers.

[0025] Figure 7 for Figure 6 Enlarged structural diagram at A in the middle.

[0026] Figure 8 This is a schematic diagram of the exploded structure of the magnetic fixing mechanism of the cutting device for polarizer processing.

[0027] In the figure: 1, cutting table; 101, sliding slot; 2, feeding mechanism; 201, electric slide rail; 202, pneumatic clamp; 203, diaphragm cutting plate; 204, positioning baffle; 205, driving slot; 206, tooth block; 3, cutting and pressing mechanism; 301, support frame; 302, control panel; 4, magnetic fixing mechanism; 401, gear; 402, anti-slip block; 403, rewinding rod; 404, soft magnetic strip; 5 , hydraulic cutting assembly; 501, hydraulic column; 502, cross plate; 503, cutting knife; 504, rotating ear; 505, adjusting slide; 6, first clamping assembly; 601, telescopic rod; 602, sleeve rod; 603, return spring; 604, clamping plate; 605, slider; 606, connecting rod; 607, electric cylinder; 7, second clamping assembly; 701, rotating plate; 702, torsion spring; 703, clamping roller. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] For examples, see Figure 1 - Figure 8 A cutting device for processing polarizers includes a cutting table 1, on which a feeding mechanism 2 and a cutting and pressing mechanism 3 are arranged, and the cutting and pressing mechanism 3 is arranged in the middle of the cutting table 1, and the feeding mechanism 2 is arranged on one side of the top of the cutting table 1, and a magnetic fixing mechanism 4 is arranged on the feeding mechanism 2, and the magnetic fixing mechanism 4 and the feeding mechanism 2 are magnetically matched, so as to fix the polarizer; The cutting and pressing mechanism 3 includes a support frame 301 arranged on the cutting table 1, a hydraulic cutting assembly 5 arranged on the support frame 301, and a first pressing assembly 6 and a second pressing assembly 7 arranged on both sides of the hydraulic cutting assembly 5; The first clamping assembly 6 is perpendicular to the top of the cutting table 1, the second clamping assembly 7 is rotatably connected to the hydraulic cutting assembly 5, and the initial position is inclined; A control panel 302 is provided on one side of the support frame 301, and the control panel 302 is electrically connected to the feeding mechanism 2 and the cutting and pressing mechanism 3; The polarizer is placed on the feeding mechanism 2 and fixed by the magnetic fixing mechanism 4. Then the feeding mechanism 2 feeds the polarizer to the cutting and pressing mechanism 3 for multiple times at equal distances along the length direction of the cutting table 1. The cutting and pressing mechanism 3 presses and smoothes the polarizer that is fed in advance through the first pressing component 6 and the second pressing component 7 and presses down to complete the cutting.

[0032] The feeding mechanism 2 moves along the length direction of the cutting table 1, and the feeding mechanism 2 is arranged on one side of the cutting and pressing mechanism 3. The feeding mechanism 2 can load materials at equal intervals. When the polarizer is placed on the feeding mechanism 2, one edge of the polarizer is placed under the magnetic fixing mechanism 4. The magnetic fixing mechanism 4 and the feeding mechanism 2 are magnetically fixed, thereby realizing the preliminary fixation of the polarizer.

[0033] Furthermore, the progressive process of the feeding mechanism 2 can be adjusted through the control panel 302, so that different sizes of cutting can be achieved according to the cutting requirements of the polarizer, and the adjusted feeding mechanism 2 performs progressive feeding with the adjusted process value, so that when the feeding mechanism 2 feeds progressively, the feeding distance is the same each time, so that the hydraulic cutting component 5 cuts the polarizer to the same size.

[0034] Among them, after the progressive process of the feeding mechanism 2 is set, its progressive process is calculated with the cutting line of the hydraulic cutting assembly 5 as the starting point. Specifically, in order to facilitate the placement of the polarizer, the initial position of the feeding mechanism 2 is set as a whole on one side of the hydraulic cutting assembly 5. Therefore, after the progressive process of the feeding mechanism 2 is set, the distance from the initial position of the feeding mechanism 2 to the cutting line of the hydraulic cutting assembly 5 in the first progressive distance of the feeding mechanism 2 is not included in the progressive process value, for the convenience of calculation.

[0035] In order to facilitate the control panel 302 to control and calculate its process, the distance from the initial position of the feeding mechanism 2 to the cutting line of the hydraulic cutting assembly 5 is set to X, and the progressive process distance set by the feeding mechanism 2 is set to Y, that is, the first progressive process distance of the feeding mechanism 2 is X+Y, and the subsequent progressive process distance is Y.

[0036] Therefore, the polarizer is initially fixed by the magnetic fixing mechanism 4, and then the control panel 302 starts the feeding mechanism 2, so that the feeding mechanism 2 drives the fixed polarizer to move toward the direction of the hydraulic cutting component 5. After the feeding mechanism 2 moves the X+Y distance for the first time, the hydraulic cutting component 5 moves downward to cut the polarizer. In the process of the hydraulic cutting component 5 moving downward, it will drive the first clamping component 6 and the second clamping component 7 to move downward accordingly, so that the first clamping component 6 and the second clamping component 7 clamp the polarizer under the hydraulic cutting component 5. Because the second clamping component 7 and the hydraulic cutting component 5 are rotationally connected, when the second clamping component 7 presses the polarizer and the hydraulic cutting component 5 continues to move downward, the second clamping component 7 pushes on the surface of the polarizer, thereby realizing the compression and smoothing of the polarizer, so that when the hydraulic cutting component 5 acts on the polarizer for cutting, the polarizer will not be cut in a bulging state, thereby improving the accuracy of the size of the polarizer after cutting.

[0037] The hydraulic cutting assembly 5 includes a hydraulic column 501 disposed on the support frame 301 , a horizontal plate 502 disposed at the telescopic end of the hydraulic column 501 , and a cutting knife 503 fixedly mounted at the bottom end of the horizontal plate 502 .

[0038] The support frame 301 is arranged in an inverted U shape, and the hydraulic columns 501 are symmetrically fixedly installed at both ends of the inner wall of the U-shaped groove of the support frame 301. The telescopic end of the hydraulic column 501 is fixedly connected to the cross plate 502. Through the telescopic movement of the hydraulic column 501, the cross plate 502 is pushed downward toward the cutting table 1, so that the cutting knife 503 moves downward to cut the polarizer.

[0039] The first clamping assembly 6 includes a telescopic rod 601 disposed on the side of the horizontal plate 502 away from the feeding mechanism 2, a sleeve rod 602 sleeved on the end of the telescopic rod 601 away from the horizontal plate 502, and a return spring 603 disposed in the sleeve rod 602; A clamping plate 604 is provided at one end of the sleeve rod 602 away from the telescopic rod 601 , and the bottom end of the clamping plate 604 is made of rubber. The distance from the initial position of the clamping plate 604 to the cutting table 1 is smaller than the distance from the cutting knife 503 to the cutting table 1 .

[0040] Two telescopic rods 601 are provided, which are respectively arranged at the two ends of the side of the horizontal plate 502 away from the feeding mechanism 2. The bottom ends of the two telescopic rods 601 are movably connected with the sleeve rod 602. The return spring 603 is arranged inside the sleeve rod 602. One end of the return spring 603 is fixedly connected to one end of the telescopic rod 601, and the other end of the return spring 603 is fixedly connected to the inner wall of the cavity of the sleeve rod 602. Only one clamping plate 604 is provided, and both ends of the clamping plate 604 are fixedly connected to the bottom ends of the two sleeve rods 602.

[0041] Specifically, the cutting knife 503 is driven by the hydraulic column 501 to move downward to cut the polarizer. Since the distance from the initial position of the clamping plate 604 to the cutting table 1 is smaller than the distance from the cutting knife 503 to the cutting table 1, the clamping plate 604 first contacts the polarizer before the cutting knife 503 cuts the polarizer. As the horizontal plate 502 moves downward, the telescopic rod 601 moves downward to squeeze the reset spring 603, thereby compressing the reset spring 603. The elastic potential energy of the compression of the reset spring 603 pushes the sleeve rod 602 downward, so that the clamping plate 604 presses the polarizer to achieve the first layer of compression. At the same time, the clamping plate 604 is made of rubber material to avoid crushing the polarizer when the clamping plate 604 is pressed downward.

[0042] The bottom end of the horizontal plate 502 is provided with rotating ears 504 at both ends of one side away from the first clamping assembly 6, and the second clamping assembly 7 is rotatably mounted on the rotating ears 504; The second pressing assembly 7 includes a rotating plate 701 rotatably mounted on the rotating ear 504, a torsion spring 702 disposed on the rotating plate 701, and a pressing roller 703 disposed on the rotating plate 701 at one end away from the rotating ear 504; The rotating plate 701 is rotatably connected via a rotating shaft and a rotating ear 504 . The torsion spring 702 is sleeved on the rotating shaft of the rotating plate 701 , and two ends of the torsion spring 702 are fixedly connected to the rotating plate 701 and the rotating ear 504 , respectively.

[0043] Connecting seats are arranged on both sides of one end of the rotating plate 701 away from the rotating ear 504, and the pressing roller 703 is rotatably connected to the rotating plate 701 through the connecting seats, wherein the initial position of the second pressing assembly 7 is inclined.

[0044] Specifically, under the action of the torsion spring 702, the rotating plate 701 is initially tilted, and the tilted state is that one end of the pressing roller 703 on the rotating plate 701 is farther away from the cutting knife 503 than the end of the rotating ear 504. Therefore, when the pressing roller 703 moves downward with the cross plate 502, the pressing roller 703 will contact the polarizer and move in the direction away from the cutting knife 503, thereby smoothing and pressing the polarizer, avoiding the polarizer being cut by the cutting knife 503 in a floating and bulging state, resulting in deviation in the size of the cut polarizer.

[0045] When the second clamping assembly 7 is in the initial tilted state, the distance from the clamping roller 703 to the cutting table 1 is less than the distance from the cutting blade 503 to the cutting table 1 , and the distance from the clamping roller 703 to the cutting table 1 is greater than the distance from the initial position of the clamping plate 604 to the cutting table 1 .

[0046] Therefore, when the hydraulic column 501 pushes the horizontal plate 502 downward, the pressing plate 604 first presses the polarizer on one side of the fixed cutting knife 503, and then the pressing roller 703 in the second pressing assembly 7 contacts the polarizer on the other side of the cutting knife 503, and as the horizontal plate 502 continues to move downward, the pressing roller 703 pushes and smoothes the polarizer, wherein the pressing roller 703 is wrapped with a rubber pad, and there is a certain friction resistance in the rotation connection between the pressing roller 703 and the connecting seat, so the pressing roller 703 contacts the polarizer. When cutting the polarizer, if the polarizer is in a bulging state, the pressing roller 703 will first flatten the polarizer through the friction of the rubber pad. After the polarizer is flattened, the pressing roller 703 rolls forward, and finally the pressing roller 703 presses the polarizer through the torsion of the torsion spring 702, so that when the cutting knife 503 contacts the polarizer for cutting, the polarizer is in a flat state. If the polarizer is not in a flat state when the cutting knife 503 contacts the polarizer for cutting, the size of the cut polarizer will be larger than the set size.

[0047] An adjustment slot 505 is provided on the horizontal plate 502, and a slider 605 is slidably installed in the adjustment slot 505. The slider 605 is in an I-shape, and a connecting rod 606 is provided at the top of the slider 605. An electric cylinder 607 is fixedly installed on the horizontal plate 502, and the electric cylinder 607 and the connecting rod 606 are fixedly connected. The bottom end of the slider 605 is fixedly connected to the telescopic rod 601 .

[0048] Two adjusting grooves 505 are symmetrically opened on the horizontal plate 502 corresponding to the telescopic rod 601, and an I-shaped slider 605 is slidably installed in the two adjusting grooves 505. A connecting rod 606 is provided, and the connecting rod connects the two I-shaped sliders 605. Two groups of electric cylinders 607 are provided on both sides of the top of the horizontal plate 502, and the telescopic ends of the electric cylinders 607 are fixedly connected to the two ends of the connecting rod 606 respectively.

[0049] Specifically, according to the size of the polarizer to be cut, the distance from the first clamping component 6 to the cutting position of the cutting knife 503 is adjusted, so that after the polarizer is cut, as the feeding mechanism 2 progressively feeds the material, the first clamping component 6 can clamp and fix the new end edge of the polarizer after cutting. If the position of the first clamping component 6 cannot be adjusted, then when cutting a larger size of polarizer, the new end edge of the polarizer after cutting will exceed the first clamping component 6, thereby causing the second clamping component 7 to be unable to smooth the polarizer that exceeds the first clamping component 6, thereby causing the cut polarizer to be less precise.

[0050] At the same time, under the mutual cooperation of the first clamping component 6 and the second clamping component 7, the polarizer can be stretched and pressed before the cutting knife 503 cuts the polarizer, so that the polarizer does not need to be fixed on all sides by tape as in the prior art, and only the edge of the polarizer close to the cutting knife 503 needs to be positioned and fixed, thereby improving the cutting efficiency.

[0051] The cutting table 1 is provided with a sliding groove 101, and the sliding groove 101 and the feeding mechanism 2 are slidably matched; The feeding mechanism 2 includes an electric slide rail 201 disposed at the bottom end of the cutting table 1, a pneumatic clamp 202 disposed on the electric slide rail 201, and a film cutting plate 203 disposed on the cutting table 1; The magnetic fixing mechanism 4 is arranged on the diaphragm cutting plate 203 , and the diaphragm cutting plate 203 is made of magnetic material, and the magnetic fixing mechanism 4 and the diaphragm cutting plate 203 are magnetically matched.

[0052] Two sliding grooves 101 are symmetrically opened, and an electric slide rail 201 is fixedly installed under the two sliding grooves 101. A pneumatic clamp 202 is fixedly installed on the slide table of the electric slide rail 201. The membrane cutting plate 203 is detachably arranged and fixedly installed on the top of the cutting table 1 through the pneumatic clamp 202. Progressive feeding is performed as the electric slide rail 201 is driven.

[0053] When cutting the polarizer, the polarizer is placed on the film cutting plate 203, and one edge of the polarizer is placed under the magnetic fixing mechanism 4, and then the magnetic fixing mechanism 4 and the film cutting plate 203 are magnetically attracted to fix one edge of the polarizer.

[0054] A positioning baffle 204 perpendicular to the film cutting plate 203 is disposed on one side of the film cutting plate 203 close to the cutting blade 503 , and the magnetic fixing mechanism 4 is disposed on the positioning baffle 204 .

[0055] By setting the positioning baffle 204, the polarizer can be better placed and positioned, and the placed polarizer can be matched and fixed with the magnetic fixing mechanism 4. It should be noted that the height of the positioning baffle 204 needs to be lower than the initial height of the cutting knife 503.

[0056] A driving slot 205 is formed on the positioning baffle 204 , and a linear array of teeth 206 is provided on one side of the inner wall of the driving slot 205 .

[0057] The magnetic fixing mechanism 4 includes a gear 401 movably mounted in the driving slot 205, and also includes anti-slip blocks 402 arranged at both ends of the gear 401, a reeling rod 403 arranged on one side of the anti-slip block 402, and a soft magnetic strip 404 arranged on the reeling rod 403; The gear 401 is meshed with the tooth block 206 , and the soft magnetic strip 404 is magnetically matched with the film cutting plate 203 .

[0058] One end of the soft magnetic strip 404 is fixedly connected to the film cutting plate 203; The driving groove 205 is arranged obliquely, and one end of the driving groove 205 close to the fixed connection between the soft magnetic strip 404 and the diaphragm cutting plate 203 is higher than the other end.

[0059] Two anti-slip blocks 402 are provided, and the anti-slip block 402 located at one end of the gear 401 away from the winding rod 403 is rotatably connected to the gear 401, and the other anti-slip block 402 is welded to the other end of the gear 401 and the winding rod 403, and the soft magnetic strip 404 is wound on the winding rod 403, and a hand-held rotating block is rotatably installed on the end of the winding rod 403 away from the anti-slip block 402.

[0060] The anti-dropping block 402 is pinched and rotated and the hand-held rotating block pushes the gear 401 to slide in the driving groove 205. Driven by the tooth block 206, the gear 401 rotates, thereby stretching the rolled soft magnetic strip 404 and fixing the polarizer with the film cutting plate 203 by magnetic attraction.

[0061] It should be noted that when the gear 401 is located at the highest point of the inclination of the driving groove 205, the soft magnetic strip 404 is in a retracted state, and one end of the soft magnetic strip 404 is fixedly connected to the diaphragm cutting plate 203, so that when the gear 401 moves along the driving groove 205 and engages and rotates with the tooth block 206, the soft magnetic strip 404 stretches progressively. Then, the soft magnetic strip 404 will push the fixed edge of the polarizer to a certain extent through progressive magnetic attraction, thereby avoiding the situation where the polarizer is bulged in the width direction and is fixed when it is initially fixed.

[0062] The driving groove 205 is inclined because as the soft magnetic strip 404 stretches, the diameter of the rolled soft magnetic strip 404 will become smaller. By tilting the driving groove 205, the angle between the soft magnetic strip 404 and the diaphragm cutting plate 203 is smaller, thereby having a better magnetic attraction and fixing effect. If the driving groove 205 is horizontal, then as the diameter of the rolled soft magnetic strip 404 becomes smaller, the angle between the soft magnetic strip 404 and the diaphragm cutting plate 203 will become larger and larger, thereby causing the soft magnetic strip 404 to be easily lifted up by operating errors, resulting in failure of fixation of the polarizer.

[0063] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cutting device for processing polarizer, characterized in that: The cutting table (1) comprises a feeding mechanism (2) and a cutting and pressing mechanism (3) provided on the cutting table (1), wherein the cutting and pressing mechanism (3) is arranged in the middle of the cutting table (1), the feeding mechanism (2) is arranged on one side of the top end of the cutting table (1), and a magnetic fixing mechanism (4) is provided on the feeding mechanism (2), wherein the magnetic fixing mechanism (4) and the feeding mechanism (2) are magnetically matched, thereby fixing the polarizer; The cutting and pressing mechanism (3) comprises a support frame (301) arranged on the cutting table (1), a hydraulic cutting assembly (5) arranged on the support frame (301), and a first pressing assembly (6) and a second pressing assembly (7) arranged on both sides of the hydraulic cutting assembly (5); The first clamping assembly (6) is perpendicular to the top of the cutting table (1), the second clamping assembly (7) is rotatably connected to the hydraulic cutting assembly (5), and the initial position is an inclined setting; A control panel (302) is provided on one side of the support frame (301), and the control panel (302) is electrically connected to the feeding mechanism (2) and the cutting and pressing mechanism (3); The polarizer is placed on the feeding mechanism (2) and fixed by a magnetic fixing mechanism (4). Then, the feeding mechanism (2) feeds the polarizer multiple times at equal distances along the length direction of the cutting table (1) in the direction of the cutting and pressing mechanism (3). The cutting and pressing mechanism (3) presses and smoothes the polarizer fed in a progressive manner through a first pressing component (6) and a second pressing component (7) and presses down to complete the cutting.

2. The polarizer cutting device according to claim 1, characterized in that: The hydraulic cutting assembly (5) comprises a hydraulic column (501) arranged on the support frame (301), a horizontal plate (502) arranged at the telescopic end of the hydraulic column (501), and a cutting knife (503) fixedly mounted on the bottom end of the horizontal plate (502).

3. The polarizer cutting device according to claim 2, characterized in that: The first clamping assembly (6) comprises a telescopic rod (601) arranged on a side of the transverse plate (502) away from the feeding mechanism (2), a sleeve rod (602) sleeved on an end of the telescopic rod (601) away from the transverse plate (502), and a return spring (603) arranged in the sleeve rod (602); A clamping plate (604) is provided at one end of the sleeve rod (602) away from the telescopic rod (601), and the bottom end of the clamping plate (604) is made of rubber. The distance from the initial position of the clamping plate (604) to the cutting table (1) is smaller than the distance from the cutting knife (503) to the cutting table (1).

4. The polarizer cutting device according to claim 3, characterized in that: Rotating ears (504) are provided at both ends of the bottom end of the horizontal plate (502) on one side away from the first clamping assembly (6), and a second clamping assembly (7) is rotatably mounted on the rotating ears (504); The second pressing assembly (7) comprises a rotating plate (701) rotatably mounted on the rotating ear (504), a torsion spring (702) arranged on the rotating plate (701), and a pressing roller (703) arranged on an end of the rotating plate (701) away from the rotating ear (504); The rotating plate (701) is rotatably connected via a rotating shaft and a rotating ear (504), the torsion spring (702) is sleeved on the rotating shaft of the rotating plate (701), and two ends of the torsion spring (702) are respectively fixedly connected to the rotating plate (701) and the rotating ear (504).

5. The polarizer cutting device according to claim 4, characterized in that: The horizontal plate (502) is provided with an adjustment slot (505), and a slider (605) is slidably mounted in the adjustment slot (505), the slider (605) is in an I-shape, and a connecting rod (606) is disposed at the top of the slider (605), an electric cylinder (607) is fixedly mounted on the horizontal plate (502), and the electric cylinder (607) and the connecting rod (606) are fixedly connected; The bottom end of the sliding block (605) is fixedly connected to the telescopic rod (601).

6. The polarizer cutting device according to claim 5, characterized in that: The cutting table (1) is provided with a sliding groove (101), and the sliding groove (101) and the feeding mechanism (2) are slidably matched; The feeding mechanism (2) comprises an electric slide rail (201) arranged at the bottom end of the cutting table (1), a pneumatic clamp (202) arranged on the electric slide rail (201), and a film cutting plate (203) arranged on the cutting table (1); The magnetic attraction fixing mechanism (4) is arranged on the diaphragm cutting plate (203), and the diaphragm cutting plate (203) is made of magnetic attraction material, and the magnetic attraction fixing mechanism (4) and the diaphragm cutting plate (203) are magnetically matched.

7. The polarizer cutting device according to claim 6, characterized in that: A positioning baffle (204) perpendicular to the diaphragm cutting plate (203) is provided on one side of the diaphragm cutting plate (203) close to the cutting knife (503), and the magnetic attraction fixing mechanism (4) is provided on the positioning baffle (204).

8. The polarizer cutting device according to claim 7, characterized in that: The positioning baffle (204) is provided with a driving groove (205), and a linear array of tooth blocks (206) is provided on one side of the inner wall of the driving groove (205).

9. The polarizer cutting device according to claim 8, characterized in that: The magnetic attraction fixing mechanism (4) comprises a gear (401) movably mounted in the driving slot (205), and also comprises anti-slip blocks (402) arranged at both ends of the gear (401), a reeling rod (403) arranged on one side of the anti-slip block (402), and a soft magnetic strip (404) arranged on the reeling rod (403); The gear (401) and the tooth block (206) are meshed, and the soft magnetic strip (404) and the diaphragm cutting plate (203) are magnetically matched.

10. The polarizer cutting device according to claim 9, characterized in that: One end of the soft magnetic strip (404) is fixedly connected to the diaphragm cutting plate (203); The driving groove (205) is arranged in an inclined manner, and one end of the driving groove (205) close to the fixed connection between the soft magnetic strip (404) and the diaphragm cutting plate (203) is higher than the other end.

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