A cutting device and method for producing and processing polarizer

Abstract

The present invention discloses a cutting device and method for producing and processing polarizing films in the field of polarizing film cutting technology, comprising a fixed bottom plate, a first conveyor belt being transmission-connected to the top of the fixed bottom plate, and limiting mechanisms for preventing the first conveyor belt from being deflected when pushing the polarizing film are arranged on both the front and rear sides of the first conveyor belt; the present invention uses the first conveyor belt and the limiting mechanism to keep the polarizing film from being deflected and stably conveyed on the top of the first conveyor belt each time the polarizing film is cut, and uses the first cutting mechanism, the second cutting mechanism and the switching mechanism to cooperate with each other, thereby avoiding the phenomenon that the polarizing film is bent or moved during the horizontal and vertical cutting processes, greatly improving the accuracy of polarizing film cutting, avoiding the damage of the polarizing film during the cutting process, and greatly improving the efficiency of polarizing film cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of polarizer cutting, and in particular to a cutting device and method for producing and processing polarizers. Background Art

[0002] Liquid crystal polarizer, the full name of which is polarizing film, is widely used in optical instruments such as displays. It is an indispensable part of liquid crystal imaging. The basic structure of liquid crystal polarizer is two layers of triacetate cellulose film (TAC) sandwiched with a layer of polyvinyl alcohol (PVA).

[0003] In the prior art, when cutting a polarizer, the polarizer to be cut is usually placed on a cutting table (3) and fixed, and then a cutting knife (19) is used to cut the polarizer horizontally and vertically, so that the polarizer is cut into a required size.

[0004] When using the cutting knife (19) to perform horizontal or vertical cutting, the vertical or horizontal cutting is always performed first, resulting in the edge of the polarizer in the middle part after cutting being in a state where it cannot be fastened. Even if the adsorption mechanism at the bottom is continuously adsorbed, due to the uncertainty of the cutting position, some edges of the polarizer after horizontal or vertical cutting cannot be fastened. When cutting in the other direction is performed later, the cutting knife (19) is likely to move the polarizer first and cause it to slide. First, it is likely to affect the accuracy of cutting, and second, it is likely to cause the polarizer to be bent and damaged, both of which are not conducive to the cutting of the polarizer. Summary of the invention

[0005] The object of the present invention is to provide a cutting device for production and processing of polarizers that can accurately, quickly and continuously cut polarizers, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cutting device for producing and processing polarizers, comprising a fixed bottom plate, the top of the fixed bottom plate is connected to a first conveyor belt by transmission, the front and rear sides of the first conveyor belt are both provided with limiting mechanisms for preventing the first conveyor belt from deflecting when pushing the polarizer, the top of the fixed bottom plate is fixedly connected to a cutting table flush with the top of the first conveyor belt, the top of the cutting table is provided with a pressing and conveying mechanism for pressing the polarizer from above and conveying the polarizer to the left, the left side of the cutting table is provided with a first cutting mechanism for equidistantly cutting the left end of the polarizer conveyed to the left, the top of the first cutting mechanism is provided with a second cutting mechanism for longitudinally cutting the inner end of the cut polarizer after cutting the first cutting mechanism by a certain length, and the top of the fixed bottom plate is provided with a switching mechanism for switching the first cutting mechanism and the second cutting mechanism;

[0007] The first cutting mechanism comprises a flower-shaped rod, a plurality of cutting discs distributed in a linear array are longitudinally slidably connected to the outer surface of the flower-shaped rod, the right end of the cutting disc is in contact with the left end of the cutting table, and support blocks are provided on the front and rear sides of each cutting disc, and the top of the support block is flush with the top of the cutting table, the front end of the flower-shaped rod is fixedly connected to a first motor, and the front and rear ends of the flower-shaped rod are rotatably connected to a first connecting plate, the first motor is fixedly connected to the side wall of the first connecting plate, and the bottom of the cutting table is provided with an adjustment mechanism for adjusting the cutting spacing between the plurality of cutting discs;

[0008] The adjusting mechanism comprises a plurality of arc plates, which are respectively fixedly connected to the bottoms of a plurality of support blocks, a gap is provided between two adjacent arc plates for the tube cutting disk to pass through, a U-shaped sliding frame is commonly fixedly connected to the left side walls of two adjacent arc plates, a first slide is fixedly connected to the bottom of the cutting table, the first slide passes through a plurality of U-shaped sliding frames and is slidably connected thereto, an adjusting screw is rotatably connected to the bottom of the cutting table, the adjusting screw passes through a plurality of U-shaped sliding frames and is threadedly connected thereto, the adjusting screw is segmented according to the number of cutting disks, the U-shaped sliding frame is located in the middle position of each segment of the adjusting screw, the pitch ratio of the adjusting screw from the middle to each end of each segment is:: in sequence, so that the plurality of cutting disks remain equidistant after each adjustment, and the front and rear ends of the adjusting screw are connected with a clamping mechanism for tightening the adjusting screw after adjustment;

[0009] The clamping mechanism comprises two clamping plates, the two clamping plates are respectively located on the outside of the adjusting screw rod, the outer surfaces of the two clamping plates are fixedly connected with first electric cylinders, and the two first electric cylinders are fixedly connected to the inner side walls of the legs of the cutting table;

[0010] The second cutting mechanism comprises two second connecting plates, the two second connecting plates are respectively fixedly connected to the tops of the two first connecting plates, the two second connecting plates are fixedly connected to the first supporting plates on the inner side walls, a first screw rod and a light rod are rotatably connected between the two first supporting plates, a mounting platform is jointly sleeved on the outer surfaces of the first screw rod and the light rod, the mounting platform is threadedly connected to the first screw rod, a cutting knife is fixedly installed on the bottom of the mounting platform, a cutting groove is provided at the left end of the top of the cutting table, a second motor is fixedly connected to the front end of the first screw rod, the second motor is fixedly connected to the side wall of the second connecting plate, a pressing plate is fixedly connected between the two first supporting plates, and the pressing plate is located on the left side of the cutting knife;

[0011] The switching mechanism comprises two first fixing plates, both of which are fixedly connected to the top of the fixed bottom plate, a first rotating shaft is rotatably connected between the two first fixing plates, the first rotating shaft is coaxial with the arc plate, a third motor is fixedly connected to the front end of the first rotating shaft, the third motor is fixedly connected to the top of the fixed bottom plate, and both of the first connecting plates are fixedly connected to the outer surface of the first rotating shaft;

[0012] The compacting and conveying mechanism comprises a U-shaped fixing frame, the U-shaped fixing frame is fixedly connected to the top of the cutting table, the bottom of the U-shaped fixing frame is fixedly connected to a second electric cylinder, the bottom end of the second electric cylinder is fixedly connected to a mounting frame, and a plurality of horizontally arranged conveying rollers are rotatably connected to the inner side of the mounting frame;

[0013] The limiting mechanism includes a second support plate, the second support plate is fixedly connected to the top of the fixed bottom plate, a third electric cylinder is fixedly connected inside the second support plate, a blocking plate is fixedly connected to the inner end of the third electric cylinder, the blocking plate is located on the top of the first conveyor belt, and a plurality of follower rollers are rotatably connected to the inner side wall of the blocking plate;

[0014] A cutting method for producing and processing polarizers, the specific steps of the method are:

[0015] Step 1: Place the polarizer to be cut on the top of the first conveyor belt, and start the limiting mechanism to push the polarizer horizontally and vertically from the front and back sides;

[0016] Step 2: Start the first conveyor belt to drive the polarizer to the left. When the left end of the polarizer moves to the top of the cutting table, the pressing conveying mechanism on the top presses the left end of the polarizer.

[0017] Step 3: When the left end of the polarizer contacts the first cutting mechanism, the first cutting mechanism cuts the left end of the polarizer horizontally at equal distances;

[0018] Step 4: When the polarizer is conveyed to the required length by the cutting knife, the first conveyor belt and the pressing conveying mechanism are closed, and the switching mechanism is started to drive the first cutting mechanism and the second cutting mechanism to rotate clockwise. The first cutting mechanism rotates to the bottom of the cutting table, and the second cutting mechanism moves to the top of the polarizer cut by the first cutting mechanism.

[0019] Step 5: Start the second cutting mechanism to cut the polarizer horizontally, and the cutting position of the second cutting mechanism is located at the intersection of the cut and uncut polarizer;

[0020] Step 6: After the second cutting mechanism completes cutting, the switching mechanism drives the first cutting mechanism and the second cutting mechanism to reset, completing one cutting.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention uses the first conveyor belt and the limiting mechanism to keep the polarizer from being deflected and stably conveyed on the top of the first conveyor belt each time the polarizer is cut, and uses the first cutting mechanism, the second cutting mechanism and the switching mechanism to cooperate with each other, thereby avoiding the polarizer from bending or being moved during the horizontal and vertical cutting processes, greatly improving the accuracy of polarizer cutting, avoiding damage to the polarizer during the cutting process, and greatly improving the efficiency of polarizer cutting.

[0023] 2. The present invention starts the first motor when the polarizer is transported to the left side each time it is cut, driving the pattern rod and a plurality of cutting disks to rotate rapidly to cut the end of the polarizer, and uses support blocks on the front and rear sides of each cutting disk to support the polarizer during cutting to prevent the polarizer from moving up and down, which is beneficial to the cutting of the polarizer. The first cutting mechanism cuts the end of the polarizer quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flow chart of the method of the present invention;

[0025] Figure 2 It is a first stereoscopic view of the overall structure of the present invention;

[0026] Figure 3 It is a second stereoscopic view of the overall structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the top structure of the cutting table machine of the present invention;

[0028] Figure 5 It is a schematic diagram of the positions of the first cutting mechanism and the second cutting mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the positions of the cutting table, cutting disc and first support plate of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the adjustment mechanism inside the first cutting mechanism of the present invention;

[0031] Figure 8 for Figure 7 A magnified view of the structure at center;

[0032] Fig. 9 It is a schematic diagram of the position of the cutting groove on the top of the cutting table of the present invention;

[0033] Fig.10 It is a schematic diagram of the first cutting mechanism, the second cutting mechanism structure and the switching mechanism structure of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] Fixed base plate 1, first conveyor belt 2, cutting table 3, pattern rod 4, cutting disc 5, support block 34, first motor 6, first connecting plate 7, arc plate 8, U-shaped sliding frame 9, first slide plate 10, adjusting screw rod 11, clamping plate 12, first electric cylinder 13, second connecting plate 14, first supporting plate 15, first screw rod 16, light rod 17, mounting table 18, cutting knife 19, cutting groove 20, second motor 21, clamping plate 22, first fixed plate 23, first rotating shaft 24, third motor 25, U-shaped fixing frame 26, second electric cylinder 27, mounting frame 28, conveying roller 29, second supporting plate 30, third electric cylinder 31, blocking plate 32, rotating roller 33. DETAILED DESCRIPTION

[0036] See also Figure 1-Figure 10 The present invention provides a technical solution: a cutting device for producing and processing polarizers, comprising a fixed bottom plate 1, a first conveyor belt 2 is transmission-connected to the top of the fixed bottom plate 1, and both the front and rear sides of the first conveyor belt 2 are provided with limiting mechanisms for preventing the first conveyor belt 2 from deflecting when pushing the polarizer, a cutting table 3 flush with the top of the first conveyor belt 2 is fixedly connected to the top of the fixed bottom plate 1, a pressing and conveying mechanism for pressing the polarizer from above and conveying the polarizer to the left is provided on the top of the cutting table 3, a first cutting mechanism for equidistantly cutting the left end of the polarizer conveyed to the left is provided on the left side of the cutting table 3, a second cutting mechanism for longitudinally cutting the inner end of the cut polarizer after cutting the first cutting mechanism by a certain length is provided on the top of the first cutting mechanism, and a switching mechanism for switching the first cutting mechanism and the second cutting mechanism is provided on the top of the fixed bottom plate 1;

[0037] When the device is working, the polarizer to be cut is first placed on the top of the first conveyor belt 2, and the limiting mechanism is started to push the polarizer horizontally and vertically from the front and rear sides to ensure that the left end surface of the polarizer is flush, which is conducive to the subsequent accurate cutting of the polarizer. Then, the first conveyor belt 2 is started to drive the polarizer to be transported to the left. When the left end of the polarizer moves to the top of the cutting table 3, the pressing and conveying mechanism on the top presses the left end of the polarizer and stably conveys the polarizer to the left. When the left end of the polarizer contacts the first cutting mechanism, the first cutting mechanism cuts the left end of the polarizer horizontally at an equal distance. When the polarizer is When the length required by the conveying cutting knife is reached, the first conveyor belt 2 and the pressing conveying mechanism are closed, so that the inner end of the cut polaroid is at the left end of the cutting table 3, and then the switching mechanism is started to drive the first cutting mechanism and the second cutting mechanism to rotate clockwise, the first cutting mechanism rotates to the bottom of the cutting table 3, the second cutting mechanism moves to the top of the polaroid cut by the first cutting mechanism, the second cutting mechanism cooperates with the pressing conveying mechanism to press the left and right ends of the cut polaroid, and the second cutting mechanism is started to cut the cut polaroid horizontally, and the cutting position of the second cutting mechanism is between the cut and uncut polaroid The intersection of the cuts can better ensure the cutting of the polarizer, and the pressing effect of the top pressing conveying mechanism can be cooperated with to avoid the phenomenon that some parts of the middle part after being cut by the first cutting mechanism are pulled when being cut by the second cutting mechanism, which is beneficial to improve the cutting accuracy and avoid the polarizer being damaged during cutting. After the second cutting mechanism completes cutting, when it is reset, the switching mechanism drives the first cutting mechanism and the second cutting mechanism to reset. When the first case mechanism is reset, the first conveyor belt 2 and the pressing conveying mechanism are started to continue to convey the polarizer to the left for the next cutting work, so that the polarizer is cut continuously. Cutting improves processing efficiency, and the cut polaroid falls on the fixed bottom plate 1 and can be taken out later, so that each time the polaroid is cut, the first conveyor belt 2 and the limiting mechanism are used to keep the polaroid from being deflected and stably conveyed on the top of the first conveyor belt 2, and the first cutting mechanism, the second cutting mechanism and the switching mechanism cooperate with each other to avoid the bending or movement of the polaroid caused by the horizontal and vertical cutting processes, greatly improve the accuracy of polaroid cutting, avoid damage to the polaroid caused by the cutting process, and greatly improve the efficiency of polaroid cutting.

[0038] As a further solution of the present invention, the first cutting mechanism includes a pattern rod 4, and a plurality of cutting discs 5 distributed in a linear array are longitudinally slidably connected on the outer surface of the pattern rod 4, and the right end of the cutting disc 5 contacts the left end of the cutting table, and a support block 34 is provided on both the front and rear sides of each cutting disc 5, and the top of the support block 34 is flush with the top of the cutting table 3. The front end of the pattern rod 4 is fixedly connected to a first motor 6, and the front and rear ends of the pattern rod 4 are rotatably connected to a first connecting plate 7, and the first motor 6 is fixedly connected to the side wall of the first connecting plate 7, and the bottom of the cutting table 3 is provided with a plurality of cutting discs 5 for adjusting the cutting spacing between the plurality of cutting discs 5. Adjustment mechanism; when working, since it is necessary to cut the polarizer that is continuously transported to the left, the polarizer itself is relatively thin. If sliding cutting is used, it is easy to cause bending and damage to the polarizer. By starting the first motor 6 when the polarizer is transported to the left each time it is cut, the flower-shaped rod 4 and a plurality of cutting disks 5 are driven to rotate quickly to cut the end of the polarizer, and the support blocks 34 on the front and rear sides of each cutting disk 5 are used to support the polarizer during cutting to prevent the polarizer from moving up and down, which is conducive to the cutting of the polarizer. The first cutting mechanism cuts the end of the polarizer, which is convenient and quick.

[0039] As a further solution of the present invention, the adjustment mechanism includes a plurality of arc plates 8, which are respectively fixedly connected to the bottom of a plurality of support blocks 34, and there is a gap between two adjacent arc plates 8 through which the cylinder cutting disk 5 passes. A U-shaped sliding frame 9 is fixedly connected to the left side walls of the two adjacent arc plates 8. A first slide plate 10 is fixedly connected to the bottom of the cutting table 3, and the first slide plate 10 passes through the plurality of U-shaped sliding frames 9 and is slidably connected thereto. An adjusting screw rod 11 is rotatably connected to the bottom of the cutting table 3, and the adjusting screw rod 11 passes through the plurality of U-shaped sliding frames 9 and is threadedly connected thereto. The section screw 11 is segmented according to the number of cutting discs 5, and the U-shaped sliding frame 9 is located in the middle of each segment of the adjusting screw 11. The pitch ratio of the adjusting screw 11 from the middle to the two ends is 1:3:5 in sequence, so that each time a number of cutting discs 5 are adjusted, they are still equidistant. The front and rear ends of the adjusting screw 11 are connected with a clamping mechanism for tightening the adjusting screw 11 after adjustment. When working, due to the difference in the shape of each batch of polarizers to be cut, the spacing between adjacent cutting discs 5 needs to be adjusted. When each layer needs to be adjusted, the adjusting screw 11 is rotated to drive The cutting disks 5 on both sides are moved together from the middle position to the middle, and the adjusting screw rod 11 is divided into the same number of sections according to the number of cutting disks 5, and the cutting disk 5 is in the middle position of each section. When the adjusting screw rod 11 rotates, the U-shaped sliding frame 9, the arc plate 8, the support block 34 and the cutting disk 5 are simultaneously driven to move inward or outward, and the pitch ratio of the adjusting screw rod 11 after segmentation is 1:3:5, so as to ensure that the distance between the adjacent cutting disks 5 after adjustment remains consistent. For example, assuming that the distance between the two adjacent cutting disks 5 at the current position is 10, when When adjustment is required and the distance between each adjacent cutting disk 5 is 8, the adjusting screw 11 is rotated, and the two middle cutting disks 5 are each moved inward by 1, so that the distance between the two middle cutting disks 5 is 8, and if the adjacent outer cutting disks 5 do not move, the distance is 11, so that the cutting disk 5 in the middle part needs to move inward by 3, and similarly, the ones on the outer side move inward by 5, 7, and so on. The pitch ratio of the right middle to outward of the adjusting screw 11 is 1:3:5 and so on, so that the spacing during each cutting can be adjusted quickly and conveniently, and polarizers of different sizes can be cut out conveniently.

[0040] As a further solution of the present invention, the clamping mechanism includes two clamping plates 12, and the two clamping plates 12 are respectively located on the outside of the adjusting screw rod 11. The outer surfaces of the two clamping plates 12 are fixedly connected with the first electric cylinder 13, and the two first electric cylinders 13 are fixedly connected to the inner side walls of the legs of the cutting table 3; when working, after each adjustment of the adjusting screw rod 11 is completed, in order to prevent the adjusting screw rod 11 from rotating spontaneously, by starting the first electric cylinder 13, after the adjustment is completed, the two clamping plates 12 are pushed close to the adjusting screw rod 11 to clamp the adjusting screw rod 11, thereby preventing the adjusting screw rod 11 from rotating spontaneously after the adjustment is completed, which is beneficial to maintain the position of the cutting disk 5 for accurate cutting of the polarizer.

[0041] As a further solution of the present invention, the second cutting mechanism includes two second connecting plates 14, the two second connecting plates 14 are respectively fixedly connected to the tops of the two first connecting plates 7, the inner side walls of the two second connecting plates 14 are fixedly connected with first support plates 15, the first screw rod 16 and the light rod 17 are rotatably connected between the two first support plates 15, and a mounting platform 18 is commonly sleeved on the outer surfaces of the first screw rod 16 and the light rod 17, the mounting platform 18 is threadedly connected to the first screw rod 16, a cutting knife 19 is fixedly installed at the bottom of the mounting platform 18, a cutting groove 20 is provided at the left end of the top of the cutting table 3, a second motor 21 is fixedly connected to the front end of the first screw rod 16, and the second motor 21 is fixedly connected to the side wall of the second connecting plate 14, a pressing plate 22 is fixedly connected between the two first support plates 15, and the pressing plate 22 is located at the cutting knife 1 9; when working, after each cutting by the first cutting mechanism is completed, the polarizer needs to be cut off from the body of the polarizer, and after each cutting by the first cutting mechanism is completed, the switching mechanism is started to drive the first cutting mechanism and the second cutting mechanism to rotate, and the second connecting plate 14 drives the first supporting plate 15 to rotate downward, so that the first supporting plate 15 falls on the top of the cutting table 3, and the pressing plate 22 cooperates with the supporting block 34 to press the left side of the cut polarizer, and the pressing and conveying mechanism presses the right side of the polarizer, so that the polarizer located on the left and right sides of the cutting knife 19 is completely pressed, and then, the second motor 21 is started to drive the first screw rod 16 to rotate, drive the mounting table 18 and the cutting knife 19 to move forward, and the cutting knife 19 cuts the polarizer horizontally along the cutting groove 20, so as to quickly and accurately cut and shape the polarizer.

[0042] As a further solution of the present invention, the switching mechanism includes two first fixed plates 23, the two first fixed plates 23 are fixedly connected to the top of the fixed base plate 1, a first rotating shaft 24 is rotatably connected between the two first fixed plates 23, the first rotating shaft 24 is coaxial with the arc plate 8, the front end of the first rotating shaft 24 is fixedly connected to a third motor 25, the third motor 25 is fixedly connected to the top of the fixed base plate 1, and the two first connecting plates 7 are fixedly connected to the outer surface of the first rotating shaft 24; during operation, since it is necessary to switch the first cutting mechanism and the second cutting mechanism, the third motor 25 is determined each time the switching is required to drive the first rotating shaft 24 to rotate, and the first rotating shaft 24 drives the first connecting plate 7 and the second connecting plate 14 to rotate synchronously, so as to cut the first cutting mechanism and the second cutting mechanism conveniently and quickly.

[0043] As a further solution of the present invention, the pressing and conveying mechanism includes a U-shaped fixing frame 26, which is fixedly connected to the top of the cutting table 3, and a second electric cylinder 27 is fixedly connected to the bottom of the U-shaped fixing frame 26, and a mounting frame 28 is fixedly connected to the bottom end of the second electric cylinder 27, and a plurality of horizontally arranged conveying rollers 29 are rotatably connected to the inner side of the mounting frame 28; during operation, since the polarizer needs to be cut by the cutting disk 5 when being conveyed to the left, it is necessary to keep the polarizer position stable at the top of the cutting table 3, by starting the second electric cylinder 27, the mounting frame 28 and the conveying roller 29 are pushed downward to press the top of the polarizer, and the conveying roller 29 is started to drive the polarizer to move to the left, which is beneficial for the cutting disk 5 to cut the polarizer.

[0044] As a further solution of the present invention, the limiting mechanism includes a second support plate 30, which is fixedly connected to the top of the fixed base plate 1, and a third electric cylinder 31 is fixedly connected inside the second support plate 30, and a blocking plate 32 is fixedly connected to the inner end of the third electric cylinder 31, and the blocking plate 32 is located at the top of the first conveyor belt 2, and a plurality of rotating rollers 33 are rotatably connected to the inner side wall of the blocking plate 32; during operation, since the polarizer may be skewed each time it is placed on the top of the first conveyor belt 2, which is not conducive to subsequent accurate cutting operations, the third electric cylinder 31 is started to push the two blocking plates 32 inward, and the processed polarizer is pushed to a parallel position to avoid the polarizer from being skewed, and the rotating rollers 33 are used to reduce the wear on the polarizer.

[0045] A cutting method for producing and processing polarizers, the specific steps of the method are:

[0046] Step 1: first place the polarizer to be cut on the top of the first conveyor belt 2, and start the limiting mechanism to push the polarizer horizontally and vertically from the front and back sides;

[0047] Step 2: Start the first conveyor belt 2 to drive the polarizer to the left. When the left end of the polarizer moves to the top of the cutting table 3, the pressing and conveying mechanism on the top presses the left end of the polarizer.

[0048] Step 3: When the left end of the polarizer contacts the first cutting mechanism, the first cutting mechanism cuts the left end of the polarizer horizontally at equal distances;

[0049] Step 4: When the polarizer is conveyed to the required length by the cutting knife, the first conveyor belt 2 and the pressing conveying mechanism are closed, and the switching mechanism is started to drive the first cutting mechanism and the second cutting mechanism to rotate clockwise. The first cutting mechanism rotates to the bottom of the cutting table 3, and the second cutting mechanism moves to the top of the polarizer cut by the first cutting mechanism;

[0050] Step 5: Start the second cutting mechanism to cut the polarizer horizontally, and the cutting position of the second cutting mechanism is located at the intersection of the cut and uncut polarizer;

[0051] Step 6: After the second cutting mechanism completes cutting, the switching mechanism drives the first cutting mechanism and the second cutting mechanism to reset, completing one cutting.

Claims

1. A cutting device for producing and processing polarizers, comprising a fixed base plate (1), characterized in that: The top of the fixed base plate (1) is connected to a first conveyor belt (2) by transmission, and both the front and rear sides of the first conveyor belt (2) are provided with limiting mechanisms for preventing the polarizer from being deflected on the first conveyor belt (2); the top of the fixed base plate (1) is fixedly connected to a cutting table (3) flush with the top of the first conveyor belt (2); the top of the cutting table (3) is provided with a pressing and conveying mechanism for pressing the polarizer from above and conveying the polarizer to the left; the left side of the cutting table (3) is provided with a first cutting mechanism for equidistantly cutting the left end of the polarizer conveyed to the left; the top of the first cutting mechanism is provided with a second cutting mechanism for longitudinally cutting the inner end of the cut polarizer after cutting the first cutting mechanism to a certain length; the top of the fixed base plate (1) is provided with a switching mechanism for switching between the first cutting mechanism and the second cutting mechanism; The first cutting mechanism comprises a patterned rod (4), on the outer surface of which a plurality of cutting discs (5) are longitudinally slidably connected and distributed in a linear array, the right end of the cutting disc (5) contacts the left end of the cutting table, and a support block (34) is provided on both the front and rear sides of each cutting disc (5), and the top of the support block (34) is flush with the top of the cutting table (3). The front end of the patterned rod (4) is fixedly connected to a first motor (6), and the front and rear ends of the patterned rod (4) are rotatably connected to a first connecting plate (7), and the first motor (6) is fixedly connected to the side wall of the first connecting plate (7), and the bottom of the cutting table (3) is provided with an adjustment mechanism for adjusting the cutting spacing between the plurality of cutting discs (5); The second cutting mechanism comprises two second connecting plates (14), the two second connecting plates (14) are respectively fixedly connected to the tops of the two first connecting plates (7), the inner side walls of the two second connecting plates (14) are fixedly connected with a first supporting plate (15), a first screw rod (16) and a light rod (17) are rotatably connected between the two first supporting plates (15), a mounting platform (18) is commonly sleeved on the outer surfaces of the first screw rod (16) and the light rod (17), the mounting platform (18) is threadedly connected to the first screw rod (16), a cutting knife (19) is fixedly installed at the bottom of the mounting platform (18), a cutting groove (20) is provided at the left end of the top of the cutting table (3), a second motor (21) is fixedly connected to the front end of the first screw rod (16), the second motor (21) is fixedly connected to the side wall of the second connecting plate (14), a pressing plate (22) is fixedly connected between the two first supporting plates (15), and the pressing plate (22) is located on the left side of the cutting knife (19); The switching mechanism comprises two first fixed plates (23), the two first fixed plates (23) are fixedly connected to the top of the fixed base plate (1), a first rotating shaft (24) is rotatably connected between the two first fixed plates (23), the first rotating shaft (24) is coaxial with the arc plate (8), a third motor (25) is fixedly connected to the front end of the first rotating shaft (24), the third motor (25) is fixedly connected to the top of the fixed base plate (1), and the two first connecting plates (7) are fixedly connected to the outer surface of the first rotating shaft (24).

2. The cutting device for producing and processing polarizer according to claim 1, characterized in that: The adjustment mechanism comprises a plurality of arc-shaped plates (8), the plurality of arc-shaped plates (8) are respectively fixedly connected to the bottom of a plurality of support blocks (34), a gap for the cutting disc (5) to pass through is provided between two adjacent arc-shaped plates (8), a U-shaped sliding frame (9) is fixedly connected to the left side walls of the two adjacent arc-shaped plates (8), a first slide plate (10) is fixedly connected to the bottom of the cutting table (3), the first slide plate (10) passes through the plurality of U-shaped sliding frames (9) and is slidably connected thereto, and an adjustment screw rod (10) is rotatably connected to the bottom of the cutting table (3) 11), the adjusting screw rod (11) passes through a plurality of U-shaped sliding frames (9) and is threadedly connected thereto, the adjusting screw rod (11) is segmented according to the number of cutting discs (5), the U-shaped sliding frame (9) is located in the middle of each segment of the adjusting screw rod (11), the pitch ratio of each segment of the adjusting screw rod (11) from the middle to both ends is 1:3:5 and so on, so that each time a plurality of cutting discs (5) are adjusted, they still maintain an equidistant distance, and the front and rear ends of the adjusting screw rod (11) are connected to a clamping mechanism for tightening the adjusting screw rod (11) after adjustment.

3. The cutting device for producing and processing polarizer according to claim 2, characterized in that: The clamping mechanism comprises two clamping plates (12), the two clamping plates (12) are respectively located on the outside of the adjusting screw rod (11), the outer surfaces of the two clamping plates (12) are fixedly connected to the first electric cylinder (13), and the two first electric cylinders (13) are fixedly connected to the inner side walls of the legs of the cutting table (3).

4. The cutting device for producing and processing polarizer according to claim 1, characterized in that: The pressing and conveying mechanism comprises a U-shaped fixing frame (26), wherein the U-shaped fixing frame (26) is fixedly connected to the top of the cutting table (3), a second electric cylinder (27) is fixedly connected to the bottom of the U-shaped fixing frame (26), a mounting frame (28) is fixedly connected to the bottom end of the second electric cylinder (27), and a plurality of horizontally arranged conveying rollers (29) are rotatably connected to the inner side of the mounting frame (28).

5. The cutting device for producing and processing polarizer according to claim 1, characterized in that: The limiting mechanism comprises a second support plate (30), the second support plate (30) is fixedly connected to the top of the fixed bottom plate (1), a third electric cylinder (31) is fixedly connected inside the second support plate (30), an inner end of the third electric cylinder (31) is fixedly connected to a blocking plate (32), the blocking plate (32) is located on the top of the first conveyor belt (2), and a plurality of follower rollers (33) are rotatably connected to the inner side wall of the blocking plate (32).

6. A cutting method for producing and processing polarizers, applicable to a cutting device for producing and processing polarizers as claimed in any one of claims 1 to 5, characterized in that: The specific steps of this method are: Step 1: first, place the polarizer to be cut on the top of the first conveyor belt (2), and start the limiting mechanism to push the polarizer horizontally and vertically from the front and rear sides; Step 2: Start the first conveyor belt (2) to drive the polarizer to be conveyed to the left side. When the left end of the polarizer moves to the top of the cutting table (3), the pressing and conveying mechanism on the top presses the left end of the polarizer; Step 3: When the left end of the polarizer contacts the first cutting mechanism, the first cutting mechanism cuts the left end of the polarizer horizontally at equal distances; Step 4: When the polarizer is conveyed to the required length by the cutting knife, the first conveyor belt (2) and the pressing conveying mechanism are closed, and the switching mechanism is started to drive the first cutting mechanism and the second cutting mechanism to rotate clockwise, the first cutting mechanism rotates to the bottom of the cutting table (3), and the second cutting mechanism moves to the top of the polarizer cut by the first cutting mechanism; Step 5: Start the second cutting mechanism to cut the polarizer horizontally, and the cutting position of the second cutting mechanism is located at the intersection of the cut and uncut polarizer; Step 6: After the second cutting mechanism completes cutting, the switching mechanism drives the first cutting mechanism and the second cutting mechanism to reset, completing one cutting.

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