Numerical control cutting equipment and method for plywood

Abstract

The invention relates to the technical field of plywood cutting, in particular to plywood numerical control cutting equipment and method.The plywood numerical control cutting equipment comprises a numerical control cutting lathe body, the numerical control cutting lathe body comprises a carrying plate, a wood plate is arranged on the carrying plate, a plurality of sets of plywood are placed on the wood plate, and a plurality of clamping mechanisms are arranged on the carrying plate; a plurality of groups of moving mechanisms are arranged on the carrier plate; the numerical control cutting lathe comprises a numerical control cutting lathe body, a movable cutting box is arranged on the numerical control cutting lathe body, two cutting devices are arranged in the cutting box, saw blades are arranged on the two cutting devices, and edge warping prevention mechanisms for preventing edge warping of plywood are arranged on the two sides of the saw blades. The technical problems that in order to prevent a cutting blade from damaging a cut plate, when the plate cutting equipment still runs, the cut plate is taken down from the plate cutting equipment, the operation is relatively dangerous, and the life safety of the worker is threatened are solved.

Description

Technical Field

[0001] The invention relates to the technical field of plywood cutting, and in particular discloses a plywood numerical control cutting device and method. Background Art

[0002] Plywood is a board made by gluing and hot-pressing an odd number of thin wood veneers with an adhesive, with the grain of the adjacent layers perpendicular to each other. Once glued together, plywood maintains consistent dimensions. A plywood cutter is a common machine used to cut plywood. The pre-cut plywood is placed on the plywood cutter's worktable, where the cutter then cuts it to the customer's specifications. When cutting plywood, effective planning and cutting of the desired dimensions are essential to meet customer needs. At the same time, it's important to maximize sheet material utilization and minimize waste.

[0003] For example, the invention patent with patent application number 2019106388865 discloses a plate cutting machine, including a frame, a workbench for placing plates and a tool for cutting plates are provided on the frame, and a movable driving device for driving the tool to move on the frame is provided between the frame and the tool. The frame is also provided with an image acquisition device for acquiring images of the plates on the workbench and a main control system. The image acquisition device is arranged above the tool, the image acquisition device is connected to the main control system by signal, and the main control system is connected to the movable driving device by signal.

[0004] When existing plate cutting equipment is cutting plates, when the cutting path is T-shaped, there are unconnected intersections in the cutting path. Therefore, in order to prevent the cutting blade from damaging the cut plate during cutting, the workers will remove the cut plate from the plate cutting equipment while the plate cutting equipment is still running. This operation is relatively dangerous. If the saw blade is suddenly stuck in the plate, it will cause the plate to be ejected at high speed, posing a threat to the life safety of the workers. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a CNC cutting device and method for plywood, so as to solve the technical problem that when the cutting path is T-shaped, in order to prevent the cutting blade from damaging the already cut board, the staff removes the already cut board from the board cutting device while the board cutting device is still running. This operation is relatively dangerous and poses a threat to the life safety of the staff.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a CNC cutting equipment for plywood, characterized in that: it includes a CNC cutting lathe body, the CNC cutting lathe body includes a carrier plate, a wooden board is provided on the carrier plate, a plurality of groups of plywood are placed on the wooden board, a plurality of clamping mechanisms for clamping the plywood are provided on the carrier plate, a plurality of moving mechanisms for moving the plywood are provided on the carrier plate, wherein a plurality of groups of the clamping mechanisms respectively cooperate with a plurality of groups of the moving mechanisms; a movable cutting box is provided on the CNC cutting lathe body, two groups of cutting devices are provided in the cutting box, both groups of the cutting devices are provided with saw blades, and anti-warping mechanisms are provided on both sides of the saw blades to prevent the plywood from warping. First, the plywood is clamped by the clamping mechanism, and then the plywood is cut by the cutting device. During cutting, the anti-warping mechanism can press the plywood to prevent it from warping, thereby ensuring that the saw blade will not be suddenly stuck in the plywood due to the warping of the plywood, causing the board to be ejected at high speed, thereby ensuring the safety of the workers.

[0007] Furthermore, the clamping mechanism includes a first mating block, a second mating block disposed on the first mating block, the second mating block contacting the carrier plate, a first cylinder disposed on the first mating block, a pressure block disposed at the telescopic end of the first cylinder, the pressure block having a U-shaped cross-section; and multiple groups of plywood sheets positioned between the second mating block and the pressure block. The clamping mechanism, through the cooperation of the first cylinder and the pressure block, presses the plywood sheets, thereby securing the plywood sheets.

[0008] Furthermore, two groups of the first mating blocks are fixedly connected to the carrier, and the remaining groups of the first mating blocks are slidably connected to the carrier; the carrier is provided with a second sliding groove, a movable block is slidably mounted in the second sliding groove, a first limiting block is fixedly connected to the movable block, the first limiting block is slidably mounted on the first mating block, a second limiting block is provided in the first mating block, and the movable block is slidably mounted on the second limiting block; the movable block is provided with two groups of rotatable rollers, the carrier is provided with a first sliding groove, the two groups of rollers are located in the first sliding groove, and the rollers contact one of the inner walls of the first sliding groove. A clamping mechanism fixed to the carrier ensures that the plywood is always fixed to the carrier and does not move. When the plywood is cut, the portion fixed by the clamping mechanism slidably connected to the carrier can move on the carrier, but the plywood is still fixed at this time, and the plywood does not fall off the carrier.

[0009] Furthermore, the movement mechanism includes a third cylinder, the telescopic end of which is fixedly connected to a first connecting block, located below the corresponding first mating block. A tilting block and a second connecting block are fixedly connected to the first connecting block. The first mating block has a mating groove and a tilting groove defined in its bottom, the mating groove contacting the first connecting block, and the tilting groove contacting the tilting block. The movement mechanism is configured to move the first mating block, which is slidably connected to the carrier plate. When moving the first mating block, the first mating block is first moved upward, and then moved horizontally.

[0010] Furthermore, the cutting device is equipped with an auxiliary movement mechanism, comprising two sets of fixed frames, a connecting rod disposed between the two sets of fixed frames, and the fixed frames slidably mounted on the cutting box. One set of fixed frames is equipped with a fixed plate, which is provided with a second cylinder. The second cylinder has a push plate disposed at its telescopic end, which is slidably mounted on the connecting rod. The auxiliary movement mechanism is used to move the plywood, cooperating with the movement mechanism to simultaneously move both ends of the plywood, preventing the cut plywood from interfering with the cutting of the remaining plywood.

[0011] Furthermore, the anti-warping mechanism includes a pressure plate with both ends raised and curved. Two sets of fixing posts are fixedly connected to the pressure plate, and two sets of fixing slots are defined within the fixing frame. The two sets of fixing posts slide and fit within the two sets of fixing slots. Springs are provided within the two sets of fixing slots, with the ends of the springs contacting the fixing posts and the bottom walls of the fixing slots, respectively. The anti-warping mechanism can hold down the plywood on either side of the saw blade, preventing the saw blade from suddenly becoming stuck in the plywood due to warping during cutting, causing the sheet to be ejected at high speed, thereby ensuring the safety of workers.

[0012] Furthermore, a horizontal moving device is provided on the body of the CNC cutting lathe, and the horizontal moving device can drive the carrier to move, and the moving direction of the cutting box is perpendicular to that of the carrier; a lifting device is provided between the cutting box and the two groups of cutting devices, and the directions of the two groups of saw blades are perpendicular.

[0013] A method for using a plywood CNC cutting device comprises the following steps:

[0014] S1: The staff first stacks several groups of plywood on the wooden board, then adjusts the position of the movable block to drive the corresponding clamping mechanism to move. The staff then activates the first cylinder. The telescopic end of the first cylinder drives the pressing block to move downward. The pressing block cooperates with the second matching block to clamp and fix the several groups of plywood;

[0015] S2: Then start the horizontal moving device and the cutting box to move the carrier plate and the cutting device to the specified position, and drive the corresponding cutting device to descend through the lifting device, and at the same time drive the pressing plate and the fixing frame to descend, so that the pressing plate contacts the plywood and presses the plywood to prevent the plywood from warping during cutting;

[0016] S3: The saw blade is driven to rotate at high speed by the cutting device, and then the cutting box / horizontal moving device is started to move the saw blade relative to the plywood to cut the plywood. At this time, the push plate moves in the gap cut by the saw blade, and at the same time, the bottom end of the saw blade cuts a groove in the wood board. When the cutting line of the plywood is T-shaped, the saw blade has completed the cutting of the plywood. At this time, the carrier board stops moving, and then the third cylinder is started. The third cylinder drives the first connecting block to move. The inclined block cooperates with the inclined groove, so that the matching groove slides from the first connecting block to the second connecting block. At this time, one end of the plywood is tilted, and the plywood is in linear contact with the wood board.

[0017] S4: Then start the second cylinder at the same time, the second cylinder drives the push plate to move, the push plate and the first matching block push both ends of the plywood at the same time, driving the plywood to move on the wooden board, at this time driving the movable block to move, and the roller rolls in the first sliding groove until the plywood moves to a position that does not interfere with the cutting path of the remaining plywood, then the telescopic end of the second cylinder contracts, moves the push plate to the initial position, and then continues to cut the plywood until the cutting of the plywood is completed.

[0018] The working principle and beneficial effects of this solution are:

[0019] When in use, the staff first fixes the plywood through several sets of clamping mechanisms, then starts the cutting device to cut the plywood, and the anti-warping mechanism presses the plywood to ensure that the plywood cut by the saw blade will not warp, thereby preventing the plywood from being ejected at high speed due to the warping of the plywood, which may pose a threat to the life safety of the staff.

[0020] When the cutting line of the plywood is T-shaped, the saw blade first completes the cutting of the plywood part and then stops moving. The third cylinder drives the first connecting block to move, and the inclined block cooperates with the inclined groove to drive the first matching block to rise, so that one end of the plywood moves upward. Then, the second cylinder is started at the same time, and the telescopic end of the second cylinder drives the push plate to move, pushing the two ends of the plywood, driving the plywood to move on the wooden board until the plywood moves to a position that does not interfere with the remaining plywood cutting path, avoiding dangerous operations of the staff and preventing threats to the life safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment;

[0022] Figure 2 An exploded view of an embodiment;

[0023] Figure 3 Schematic diagram of the structure of the anti-warping mechanism in the embodiment;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle;

[0025] Figure 5 Schematic diagram of the structure of the clamping mechanism and the moving mechanism in the embodiment;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of area B in the middle;

[0027] Figure 7 Schematic diagram of the connection between the first matching block and the movable block in the embodiment.

[0028] The numbers in the drawings are as follows: CNC cutting lathe body 101, carrier plate 102, cutting box 103, horizontal moving device 104, wood board 105, plywood 106, cutting device 107, saw blade 108;

[0029] Pressing plate 201, fixing column 202, spring 203, fixing slot 204;

[0030] First matching block 301, second matching block 302, first cylinder 303, pressing block 304, movable block 305, roller 306, first limiting groove 307, first limiting block 308, first sliding groove 309, second sliding groove 310, second limiting block 311, second limiting groove 312;

[0031] Fixed frame 401, connecting rod 402, fixed plate 403, second cylinder 404, push plate 405, rectangular slot 406;

[0032] The third cylinder 501 , the first connecting block 502 , the tilting block 503 , the second connecting block 504 , the matching groove 505 , and the tilting groove 506 . DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] Example

[0035] like Figures 1 to 7As shown, a CNC cutting device for plywood 106 is disclosed, including a CNC cutting lathe body 101, the CNC cutting lathe body 101 includes a horizontal moving device 104, a carrier plate 102 is provided on the horizontal moving device 104, the horizontal moving device 104 can drive the carrier plate 102 to move, a wooden board 105 is placed on the carrier plate 102, a plurality of groups of plywood 106 are placed on the wooden board 105, and a plurality of clamping mechanisms for clamping the plywood 106 are provided on the carrier plate 102, a movable cutting box 103 is provided on the CNC cutting lathe body 101, the cutting box 103 is perpendicular to the moving direction of the carrier plate 102, two groups of cutting devices 107 are provided in the cutting box 103, a lifting device is provided between the cutting box 103 and the two groups of cutting devices 107, and saw blades 108 are provided on the two groups of cutting devices 107, and the directions of the two groups of saw blades 108 are perpendicular to each other.

[0036] Among them, the CNC cutting lathe body 101, the horizontal moving device 104, the cutting device 107 and the lifting device are all technical means commonly used by those skilled in the art, and their structures, connection methods and usage methods are all well known to those skilled in the art.

[0037] The clamping mechanism includes a first mating block 301, on which a second mating block 302 is provided. The second mating block 302 is located between the carrier plate 102 and the plywood 106 at the bottom. The thickness of the second mating block 302 is the same as that of the wooden board 105. One side of the second mating block 302 is in contact with the carrier plate 102. A first cylinder 303 is provided on the first mating block 301. The fixed end of the first cylinder 303 is fixedly connected to the first mating block 301 by bolts. The telescopic end of the first cylinder 303 is fixedly connected to a pressure block 304. The cross-section of the pressure block 304 is U-shaped, and the pressure block 304 is in contact with the plywood 106 at the top. The second mating block 302 cooperates with the pressure block 304 to clamp several groups of plywood 106.

[0038] Two groups of first matching blocks 301 are fixedly connected to the carrier plate 102, and the remaining groups of first matching blocks 301 are slidably connected to the carrier plate 102. A first limiting groove 307 is provided on the first matching block 301, and a first limiting block 308 is slidably mounted in the first limiting groove 307. A movable block 305 is fixedly connected to the first limiting block 308. A second sliding groove 310 is provided on the carrier plate 102, and the movable block 305 is slidably mounted in the second sliding groove 310. A second limiting groove is provided on the movable block 305. 312, a second limit block 311 is provided on the carrier plate 102, and the second limit block 311 is slidably mounted on the second limit groove 312. Two sets of rotatable rollers 306 are provided on the movable block 305. A first sliding groove 309 is opened on the carrier plate 102. Both sets of rollers 306 are located in the first sliding groove 309, and the rollers 306 are in contact with one side of the inner wall of the first sliding groove 309. The second sliding groove 310 is connected to the first sliding groove 309, and the second limit block 311 is located in the second sliding groove 310.

[0039] Two groups of anti-warping mechanisms are provided on the cutting device 107, and the two groups of anti-warping mechanisms are respectively located on both sides of the saw blade 108. The anti-warping mechanisms include a pressure plate 201, and the pressure plate 201 consists of two groups of arc segments and a group of horizontal segments. The two groups of arc segments are respectively located at both ends of the horizontal segment. Two groups of fixed columns 202 are fixedly connected to the pressure plate 201, and two groups of fixed grooves 204 are opened in the fixed frame 401. The two groups of fixed columns 202 are respectively slidably mounted in the two groups of fixed grooves 204. A spring 203 is provided in the fixed groove 204, and one end of the spring 203 is in contact with the fixed column 202, and the other end is in contact with the bottom wall of the fixed groove 204.

[0040] A moving mechanism is provided on the carrier plate 102, and the moving mechanism includes a third cylinder 501. The fixed end of the third cylinder 501 is fixed to one of the groups of first matching blocks 301 by bolts, and the telescopic end of the third cylinder 501 is fixedly connected to the first connecting block 502. The first connecting block 502 is U-shaped. The first connecting block 502 is located below one of the groups of movable first matching blocks 301. The first matching block 301 is located between the two ends of the third cylinder 501. The first connecting block 502 is fixedly connected to the inclined block 503 and the second connecting block 504. The cross-sections of the first connecting block 502, the inclined block 503 and the second connecting block 504 are stepped. A matching groove 505 and an inclined groove 506 are provided at the bottom of the first matching block 301. One side of the matching groove 505 contacts one side of the first connecting block 502, and one side of the inclined groove 506 contacts one side of the inclined block 503.

[0041] An auxiliary moving mechanism is provided on the cutting device 107, and the auxiliary moving mechanism includes two groups of fixed frames 401, and a connecting rod 402 is provided between the two groups of fixed frames 401. The two ends of the connecting rod 402 are fixedly connected to the two groups of fixed frames 401 respectively, and a fixed plate 403 is provided on the fixed frame 401. A second cylinder 404 is provided on the fixed plate 403. The fixed end of the second cylinder 404 is fixedly connected to the fixed plate 403 by a bolt, and the telescopic end of the second cylinder 404 is fixedly connected to a push plate 405, and a rectangular groove 406 is provided on the push plate 405. The shape of the rectangular groove 406 is the same as the cross-section of the connecting rod 402, and the connecting rod 402 is slidably mounted on the rectangular groove 406, and the push plate 405 and the corresponding saw blade 108 are located in the same plane.

[0042] A method for using a plywood 106 CNC cutting machine, comprising the following steps:

[0043] S1: The staff first stacks several groups of plywood 106 on the wooden board 105, and then aligns the several groups of plywood 106 and places them in the designated position. Then the staff moves several groups of movable blocks 305 to make the rollers 306 roll in the first sliding groove 309. The movable blocks 305 drive the corresponding clamping mechanisms to move so that the corresponding clamping mechanisms can fix the plywood 106 without affecting the normal operation of the cutting device. Then the staff starts the first cylinder 303, and the telescopic end of the first cylinder 303 moves downward, driving the pressing block 304 to move downward until the pressing block 304 contacts the plywood 106, thereby fixing the several groups of plywood 106.

[0044] S2: Then the horizontal moving device 104 cooperates with the cutting box 103 to move the cutting device 107 to the specified position, and then the corresponding cutting device 107 is driven to descend by the lifting device. When the cutting device 107 descends, the pressing plate 201 is driven to descend. The pressing plate 201 first contacts the plywood 106. At this time, the arc section of the pressing plate 201 contacts the plywood 106. Then the cutting device 107 continues to drive the pressing plate 201 to descend. At this time, the pressing plate 201 is stationary. The pressing plate 201 moves relative to the cutting device 107, and the fixed column 202 slides in the fixed groove 204 to compress the spring 203 until the cutting device 107 moves to the specified position.

[0045] S3: Start the cutting device 107, drive the saw blade 108 to rotate at high speed, and then the staff will cut the plywood 106 into the shape required, start the cutting box 103 / horizontal moving device 104, and move the cutting device 107 relative to the plywood 106. At this time, the pressing plate 201 slides on the plywood 106, and the arc section of the pressing plate 201 passes through the arc, so that the pressing plate 201 moves in the cutting device 107, and the fixing column 202 slides in the fixing groove 204, so that the spring 201 moves in the cutting device 107. 03 is compressed until the horizontal section of the pressure plate 201 contacts the plywood 106. At this time, the spring 203 applies a downward force to the pressure plate 201, and the pressure plate 201 presses the plywood 106. When the saw blade 108 cuts the plywood 106, the pressure plate 201 can ensure that the plywood 106 cut by the saw blade 108 will not warp, thereby preventing the plywood 106 from being ejected at high speed due to the warping of the plywood 106, which may pose a threat to the life safety of the workers.

[0046] S4: When the cutting line of the plywood 106 is T-shaped, the saw blade 108 completes cutting of part of the plywood 106. When the cut plywood 106 affects the movement trajectory of the saw blade 108 for cutting the unfinished plywood 106, the carrier plate 102 stops moving. First, the third cylinder 501 is started. The telescopic end of the third cylinder 501 drives the first connecting block 502 to move. When the first connecting block 502 moves, the tilting block 503 cooperates with the tilting groove 506 to drive the first matching block 301 to rise, so that the matching groove 505 slides from the first connecting block 502 to the second connecting block 504, and at the same time drives the first limiting block 308 to slide in the first limiting groove 307, but the first matching block 301 and the movable block 305 are never separated.

[0047] S5: Then start the second cylinder 404. At this time, the third cylinder 501 does not stop. The telescopic end of the second cylinder 404 drives the push plate 405 to move. The push plate 405 cooperates with the first matching block 301 to push both ends of the plywood 106 at the same time, driving the plywood 106 to move on the wooden board 105. At this time, the first matching block 301 drives the movable block 305 to move, so that the movable block 305 slides in the second sliding groove 310. The second limiting block 311 is in the second limiting groove 312. The roller 306 slides upward and rolls in the first sliding groove 309. At this time, since the plywood 106 is in linear contact with the wood board 105, the plywood 106 can be moved more conveniently until the plywood 106 moves to a position where it does not interfere with the cutting path of the remaining plywood 106. The telescopic end of the second cylinder 404 contracts and moves the push plate 405 to the initial position. Then the person continues to control the cutting device 107 to cut the plywood 106 until the cutting of the plywood 106 is completed.

[0048] When implementing:

[0049] When the saw blade 108 cuts the plywood 106, the bottom end of the saw blade 108 also cuts the wooden board 105, but does not completely cut through the wooden board 105. The saw blade 108 cuts a groove on the wooden board 105, thereby effectively ensuring that the plywood 106 is completely cut through. At the same time, it prevents the saw blade 108 from contacting the carrier board 102 during cutting and damaging the saw blade 108, thereby protecting the saw blade 108.

[0050] When the mating groove 505 moves on the first connecting block 502, when the mating groove 505 is on the first connecting block 502, the plywood 106 is in surface contact with the wooden board 105 at this time, and the friction between the wooden board 105 and the plywood 106 is relatively large. Therefore, when the third cylinder 501 pushes the first connecting block 502 to move, it cooperates with the inclined groove 506 through the inclined block 503, and will not drive the first mating block 301 and the plywood 106 to move horizontally on the plywood 106, but will drive the first mating block 301 to rise; when the first mating block 301 rises, the plywood 106 is in line contact with the wooden board 105. At this time, the friction between the wooden board 105 and the plywood 106 is reduced, making it easier to move the plywood 106.

[0051] When the second cylinder 404 drives the push plate 405 to move, the rectangular slot 406 moves on the connecting rod 402 , and the connecting rod 402 cooperates with the rectangular slot 406 to ensure that the push plate 405 does not rotate, thereby affecting the cutting device 107 from cutting the plywood 106 .

[0052] There is a clearance fit between the first limit block 308 and the first limit groove 307, thereby ensuring that when one end of the plywood 106 is tilted, the other end of the plywood 106 contacts the wooden board 105. At this time, the first matching block 301 is slightly tilted relative to the movable block 305 as a whole, but the tilt angle is extremely small, so the first limit groove 307 and the first limit block 308 are clearance fit, which can meet the state that the clamping mechanism is slightly tilted after the first matching block 301 is raised, and at the same time does not affect the normal fit between the first limit groove 307 and the first limit block 308, thereby ensuring that the plywood 106 can be fixed when the clamping mechanism clamps the plywood 106.

[0053] The above description is merely an embodiment of the present invention. Common knowledge regarding the specific structure and characteristics of the solution is not described in detail herein. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness and practicality of the present invention.

Claims

1. A CNC plywood cutting device, characterized by: The invention comprises a CNC cutting lathe body, wherein the CNC cutting lathe body comprises a carrier plate, a wooden board is provided on the carrier plate, a plurality of plywood groups are placed on the wooden board, a plurality of clamping mechanisms for clamping the plywood groups are provided on the carrier plate, and a plurality of moving mechanisms for moving the plywood groups are provided on the carrier plate, wherein the plurality of clamping mechanisms are respectively coordinated with the plurality of moving mechanisms; The CNC cutting lathe body is provided with a movable cutting box, and two groups of cutting devices are provided in the cutting box. Both groups of cutting devices are provided with saw blades, and anti-warping mechanisms are provided on both sides of the saw blades to prevent the plywood from warping.

2. The plywood CNC cutting equipment according to claim 1, characterized in that: The clamping mechanism includes a first matching block, a second matching block is provided on the first matching block, the second matching block is in contact with the carrier plate, a first cylinder is provided on the first matching block, a pressure block is provided at the telescopic end of the first cylinder, and the cross section of the pressure block is U-shaped; Several groups of the plywood are located between the second matching block and the pressing block.

3. The CNC plywood cutting device according to claim 2, characterized in that: Two groups of the first matching blocks are fixedly connected to the carrier plate, and the remaining groups of the first matching blocks are slidably connected to the carrier plate; A second sliding groove is provided on the carrier plate, a movable block is slidably mounted in the second sliding groove, a first limiting block is fixedly connected to the movable block, the first limiting block is slidably mounted on the first matching block, a second limiting block is provided in the first matching block, and the movable block is slidably mounted on the second limiting block; Two groups of rotatable rollers are provided on the movable block, a first sliding groove is provided on the carrier plate, the two groups of rollers are located in the first sliding groove, and the rollers are in contact with one inner wall of the first sliding groove.

4. The plywood CNC cutting device according to claim 3, characterized in that: The moving mechanism includes a third cylinder, the telescopic end of the third cylinder is fixedly connected to a first connecting block, and the first connecting block is located below the corresponding first matching block; The first connecting block is fixedly connected to an inclined block and a second connecting block. The bottom of the first matching block is provided with a matching groove and an inclined groove. The matching groove contacts the first connecting block, and the inclined groove contacts the inclined block.

5. The plywood CNC cutting device according to claim 4, characterized in that: The cutting device is provided with an auxiliary moving mechanism, which includes two sets of fixed frames, a connecting rod is provided between the two sets of fixed frames, and the fixed frames are slidably mounted on the cutting box; One group of the fixing frames is provided with a fixing plate, the fixing plate is provided with a second cylinder, the telescopic end of the second cylinder is provided with a push plate, and the push plate is slidably mounted on the connecting rod.

6. The plywood CNC cutting device according to claim 5, characterized in that: The anti-warping mechanism includes a pressure plate, both ends of which are raised and arc-shaped; Two groups of fixing columns are fixedly connected to the pressing plate, and two groups of fixing slots are opened in the fixing frame, and the two groups of fixing columns are respectively slidably clamped in the two groups of fixing slots; Springs are provided in both groups of fixing grooves, and both ends of the springs are in contact with the fixing columns and the bottom walls of the fixing grooves respectively.

7. The plywood CNC cutting device according to claim 6, characterized in that: The CNC cutting lathe body is provided with a horizontal moving device, which can drive the carrier plate to move, and the cutting box is perpendicular to the moving direction of the carrier plate; A lifting device is provided between the cutting box and the two groups of cutting devices, and the directions of the two groups of saw blades are perpendicular to each other.

8. A method for using a plywood CNC cutting device, characterized in that: The following steps are involved: S1: The staff first stacks several groups of plywood on the wooden board, then adjusts the position of the movable block to drive the corresponding clamping mechanism to move. The staff then activates the first cylinder. The telescopic end of the first cylinder drives the pressing block to move downward. The pressing block cooperates with the second matching block to clamp and fix the several groups of plywood; S2: Then start the horizontal moving device and the cutting box to move the carrier plate and the cutting device to the specified position, and drive the corresponding cutting device to descend through the lifting device, and at the same time drive the pressing plate and the fixing frame to descend, so that the pressing plate contacts the plywood and presses the plywood to prevent the plywood from warping during cutting; S3: The saw blade is driven to rotate at high speed by the cutting device, and then the cutting box / horizontal moving device is started to move the saw blade relative to the plywood to cut the plywood. At this time, the push plate moves in the gap cut by the saw blade, and at the same time, the bottom end of the saw blade cuts a groove in the wood board. When the cutting line of the plywood is T-shaped, the saw blade has completed the cutting of the plywood. At this time, the carrier board stops moving, and then the third cylinder is started. The third cylinder drives the first connecting block to move. The inclined block cooperates with the inclined groove, so that the matching groove slides from the first connecting block to the second connecting block. At this time, one end of the plywood is tilted, and the plywood is in linear contact with the wood board. S4: Then start the second cylinder at the same time, the second cylinder drives the push plate to move, the push plate and the first matching block push both ends of the plywood at the same time, driving the plywood to move on the wooden board, at this time driving the movable block to move, and the roller rolls in the first sliding groove until the plywood moves to a position that does not interfere with the cutting path of the remaining plywood, then the telescopic end of the second cylinder contracts, moves the push plate to the initial position, and then continues to cut the plywood until the cutting of the plywood is completed.

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