Extruded sheet cutting device

Abstract

The utility model belongs to the technical field of cutting devices, and particularly relates to an extruded sheet cutting device which comprises a cutting device body and a first sliding groove, the first sliding groove is formed in the cutting device body, and two deviation rectifying plates are connected into the first sliding groove in a sliding mode. The two arc-shaped grooves are formed in the cutting device body and communicate with the first sliding groove, two transmission rods are rotationally connected into the two arc-shaped grooves correspondingly, two second sliding grooves are formed in the two transmission rods correspondingly, and two transmission blocks are slidably connected into the two second sliding grooves correspondingly; one ends of the two transmission blocks extend into the first sliding groove and are fixed to the bottom ends of the two deviation rectifying plates correspondingly. The cutting device solves the problems that a cutting device is not provided with an anti-deviation mechanism, when the cutting device cuts an extruded sheet, the cut extruded sheet is prone to inclining, and the cut extruded sheet is unqualified, and solves the problem that a user cannot accurately cut the extruded sheet at a fixed length due to the fact that the cutting device is not provided with a positioning mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting devices, in particular to an extruded plate cutting device. Background Art

[0002] The extruded board cutting device is a device used to cut extruded boards. Its working principle is to place the extruded board on the cutting table, and adjust the movement trajectory and speed of the cutting knife through the control system so that the cutting knife cuts on the extruded board. The shape and number of the cutting knife can be adjusted according to different cutting requirements to achieve the best cutting effect.

[0003] The extruded board cutting device has broad application prospects in the fields of construction, transportation, cold chain logistics, etc. In the construction field, it can be used to cut wall insulation materials to improve construction speed and quality. In the transportation field, it can be used to make sound insulation and shock absorption materials to improve the safety and comfort of road traffic. In the cold chain logistics field, it can be used to make insulated boxes, refrigerated truck boards, etc. to ensure the quality and temperature stability of the goods.

[0004] For example, the Chinese patent with the publication number CN212978483U discloses a profile cutting device for processing XPS extruded board, which relates to the technical field of cutting devices, including a cutting platform, a support rod is fixedly connected to both sides of the cutting platform, a hydraulic cylinder is fixedly installed on the top of the two support rods, a sliding block is slidably arranged on the top of the hydraulic cylinder, a pair of guide plates are respectively arranged on the two support rods, and the two sliding blocks are slidably arranged on the two pairs of guide plates. The profile cutting device for processing XPS extruded board moves the servo motor and the cutting wheel relative to the guide rod, and through the transmission of the second gear and the first gear and the cooperation between the worm wheel and the worm, the cutting wheel moves along the guide rod while cutting the XPS extruded board profile to cut off the wide surface of the XPS extruded board profile. In the case of only grooving the XPS extruded board profile, the cutting wheel height is adjusted by the hydraulic cylinder, and the grooving depth of the XPS extruded board profile can be freely adjusted.

[0005] The above patent has the following problems:

[0006] This patent has some disadvantages when used, such as: the cutting device does not have an anti-deviating mechanism, when the cutting device cuts the extruded board, the cut extruded board is prone to tilt, resulting in unqualified extruded boards after cutting, and the cutting device does not have a positioning mechanism, resulting in the user being unable to accurately cut to a fixed length. In view of this, we propose an extruded board cutting device. Utility Model Content

[0007] The purpose of the utility model is to provide an extruded board cutting device to solve the problems raised in the above background technology.

[0008] In view of this, the utility model provides an extruded board cutting device, comprising:

[0009] A cutting device body and a first slide groove, wherein the first slide groove is provided on the cutting device body, and two deviation correcting plates are slidably connected in the first slide groove;

[0010] Two arc grooves, the two arc grooves are arranged in the cutting device body and are connected to the first slide groove, the two arc grooves are respectively rotatably connected to two transmission rods, the two transmission rods are respectively arranged with two second slide grooves, the two second slide grooves are respectively slidably connected to two transmission blocks, and one end of the two transmission blocks extends into the first slide groove and is respectively fixed to the bottom ends of the two deviation correcting plates;

[0011] A rotating assembly, which is located in the cutting device body and is used to drive the two transmission rods to rotate;

[0012] A third slide groove, wherein the third slide groove is provided on the cutting device body, a limiting plate is slidably connected in the third slide groove, two first sliders are slidably connected in the third slide groove, and the two first sliders are respectively located on both sides of the limiting plate;

[0013] A driving assembly is located in the limiting plate and is used to drive the two first sliding blocks to move.

[0014] Based on the above structure, by setting the first sliding groove and correcting plate, it is ensured that the two correcting plates can slide in the first sliding groove, by setting the arc groove and the transmission rod, it is ensured that the transmission rod can rotate in the arc groove, by setting the rotating component, it is ensured that the user can drive the two transmission rods to rotate through the rotating component, by setting the second sliding groove and the transmission block, it is ensured that the transmission block can slide in the second sliding groove, and when the two transmission rods rotate, the two transmission rods will respectively squeeze the two transmission blocks through the two second sliding grooves, so that the two transmission blocks respectively drive the two correcting plates to approach or move away from each other, and by setting the third sliding groove and the limit plate, it is ensured that the limit plate can slide in the third sliding groove, and by setting the driving component and the first sliding block, it is ensured that the user can drive the two first sliding blocks to move through the driving component, so that the two first sliding blocks move away from each other and tightly abut against the inner wall of the third sliding groove, so that the limit plate is fixed in the third sliding groove and cannot move.

[0015] In the above technical solution, further, the rotating assembly includes:

[0016] Two first rotating grooves, the two first rotating grooves are respectively opened on the inner wall bottom surfaces of the two arc-shaped grooves, two gears are respectively rotatably connected in the two first rotating grooves, and the two gears are respectively fixed to the two transmission rods;

[0017] A fourth slide groove is provided in the cutting device body and is connected to the two first rotating grooves. A rack meshing with two gears is slidably connected in the fourth slide groove. A one-way threaded rod is connected to the inner thread of the rack. One end of the one-way threaded rod passes through the inner wall of the fourth slide groove and extends to the outside to be rotatably connected to the cutting device body.

[0018] In this technical solution, it is ensured that the extruded board will not deviate when being cut.

[0019] In the above technical solution, further, one end of the one-way threaded rod is fixedly connected to a handle.

[0020] In this technical solution, it is ensured that the user can drive the one-way threaded rod to rotate according to the handle at one end of the one-way threaded rod.

[0021] In the above technical solution, further, the driving component includes:

[0022] Two through slots, the two through slots are symmetrically arranged in the limiting plate and are connected to the third sliding slot, two second sliders are slidably connected in the two through slots, and one end of the two second sliders is fixed to the two first sliders respectively;

[0023] A second rotation groove, which is provided in the limiting plate and communicates with the two through grooves, a bidirectional threaded rod is rotatably connected in the second rotation groove, and two ends of the bidirectional threaded rod extend into the two second sliders and are respectively threadedly connected with the two second sliders;

[0024] A movable groove is provided on the inner wall of the second rotating groove and is connected to the outside. A first sprocket and a second sprocket are rotatably connected in the movable groove, and the first sprocket is fixed to the circumference of the bidirectional threaded rod. A chain is meshed between the first sprocket and the second sprocket. A rotating rod is fixedly connected to the second sprocket, and one end of the rotating rod extends to the outside and is rotatably connected to the limiting plate.

[0025] In this technical solution, it is ensured that the limiting plate can be fixed in the third sliding groove and cannot move.

[0026] In the above technical solution, further, the two sections of threads on the bidirectional threaded rod have opposite rotation directions.

[0027] In this technical solution, it is ensured that when the bidirectional threaded rod rotates, the two second sliding blocks will be moved away from or closer to each other due to the action of the threads of the bidirectional threaded rod.

[0028] In the above technical solution, further, one end of the two transmission blocks is slidably connected to the first sliding groove, and scale lines are provided on the cutting device body.

[0029] In the technical solution, it is ensured that one end of the two transmission blocks can slide normally in the first slide groove, and it is ensured that the user can adjust the position of the limit plate through the scale lines set on the cutting device body.

[0030] The beneficial effects of the utility model are:

[0031] 1. The extruded board cutting device ensures that the two correcting plates can slide in the first slide groove by means of the provided first slide groove and the correcting plate, ensures that the transmission rod can rotate in the arc groove by means of the provided arc groove and the provided rotating component, ensures that the user can drive the two transmission rods to rotate through the rotating component, ensures that the transmission block can slide in the second slide groove by means of the provided second slide groove and the transmission block, and ensures that when the two transmission rods rotate, the two transmission rods will respectively squeeze the two transmission blocks through the two second slide grooves, so that the two transmission blocks respectively drive the two correcting plates to approach or move away from each other, thereby solving the problem that the cutting device does not have an anti-deviation mechanism, and when the cutting device cuts the extruded board, the cut extruded board is prone to tilt, resulting in unqualified extruded board after cutting.

[0032] 2. The extruded board cutting device, by providing a third slide groove and a limit plate, ensures that the limit plate can slide in the third slide groove, and by providing a driving assembly and a first slider, ensures that the user can drive the two first sliders to move through the driving assembly, so that the two first sliders move away from each other and tightly against the inner wall of the third slide groove, and the limit plate is fixed in the third slide groove and cannot move, thereby solving the problem that the cutting device does not have a positioning mechanism, resulting in the user being unable to accurately perform fixed-length cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is one of the schematic diagrams of the internal structure of the cutting device body of the utility model;

[0035] Figure 3 This is the second schematic diagram of the internal structure of the cutting device body of the utility model;

[0036] Figure 4 It is a schematic diagram of the internal structure of the limiting plate of the utility model.

[0037] The symbols in the figure are:

[0038] 1. Cutting device body; 2. First slide groove; 3. Correction plate; 4. Arc groove; 5. Transmission rod; 6. Second slide groove; 7. Transmission block; 8. Third slide groove; 9. Limit plate; 10. First slider; 11. First rotating groove; 12. Fourth slide groove; 13. Gear; 14. Rack; 15. One-way threaded rod; 16. Through groove; 17. Second slider; 18. Second rotating groove; 19. Two-way threaded rod; 20. Movable groove; 21. First sprocket; 22. Second sprocket; 23. Chain; 24. Rotating rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0043] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0044] Embodiment 1:

[0045] See also Figure 1 - Figure 4 As shown, this embodiment provides an extruded board cutting device, comprising:

[0046] A cutting device body 1 and a first slide groove 2, wherein the first slide groove 2 is provided on the cutting device body 1, and two deviation correcting plates 3 are slidably connected in the first slide groove 2;

[0047] Two arc grooves 4, the two arc grooves 4 are provided in the cutting device body 1 and are connected to the first slide groove 2, the two arc grooves 4 are respectively rotatably connected to two transmission rods 5, the two transmission rods 5 are respectively provided with two second slide grooves 6, the two second slide grooves 6 are respectively slidably connected to two transmission blocks 7, and one end of the two transmission blocks 7 extends into the first slide groove 2 and is respectively fixed to the bottom ends of the two deviation correcting plates 3;

[0048] A rotating assembly, which is located in the cutting device body 1 and is used to drive the two transmission rods 5 to rotate;

[0049] A third slide groove 8, which is provided on the cutting device body 1, and a limiting plate 9 is slidably connected in the third slide groove 8, and two first sliders 10 are slidably connected in the third slide groove 8, and the two first sliders 10 are respectively located on both sides of the limiting plate 9;

[0050] The driving assembly is located in the limiting plate 9 and is used to drive the two first sliding blocks 10 to move.

[0051] Embodiment 2:

[0052] This embodiment provides an extruded board cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the rotating assembly includes:

[0053] Two first rotating grooves 11, the two first rotating grooves 11 are respectively opened on the inner wall bottom surfaces of the two arc-shaped grooves 4, two gears 13 are respectively rotatably connected in the two first rotating grooves 11, and the two gears 13 are respectively fixed to the two transmission rods 5;

[0054] The fourth slide groove 12 is provided in the cutting device body 1 and is connected to the two first rotating grooves 11. A rack 14 meshing with two gears 13 is slidably connected in the fourth slide groove 12. A one-way threaded rod 15 is threadedly connected to the rack 14. One end of the one-way threaded rod 15 passes through the inner wall of the fourth slide groove 12 and extends to the outside to be rotatably connected to the cutting device body 1.

[0055] When in use, the user places the extruded plate on the cutting device body 1 by hand, and places the end of the extruded plate to be cut against the limit plate 9, and then the user rotates the one-way threaded rod 15 by hand, so that the rack 14 is acted upon by the thread of the one-way threaded rod 15 to move along the fourth slide groove 12, so that the rack 14 drives the two gears 13 to rotate in the two first rotating grooves 11 respectively. When the two gears 13 rotate, the two gears 13 will respectively drive the two transmission rods 5 to rotate in the two arc grooves 4. When the two transmission rods 5 rotate, the two transmission rods 5 will respectively squeeze the two transmission blocks 7 through the two second slide grooves 6, so that the two transmission blocks 7 respectively drive the two correcting plates 3 to approach each other. When the two correcting plates 3 move to the appropriate position, the user stops rotating the one-way threaded rod 15. At this time, the two correcting plates 3 will be in contact with the two sides of the extruded plate, ensuring that the extruded plate will not deviate during cutting.

[0056] Embodiment 3:

[0057] This embodiment provides an extruded board cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the one-way threaded rod 15 is fixedly connected to a handle.

[0058] The user is ensured to be able to drive the one-way threaded rod 15 to rotate according to the handle at one end of the one-way threaded rod 15 .

[0059] Embodiment 4:

[0060] This embodiment provides an extruded board cutting device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0061] Two through slots 16, the two through slots 16 are symmetrically arranged in the limiting plate 9 and communicate with the third slide slot 8, two second sliders 17 are slidably connected in the two through slots 16, and one end of the two second sliders 17 is fixed to the two first sliders 10 respectively;

[0062] A second rotation groove 18 is provided in the limiting plate 9 and communicates with the two through grooves 16. A bidirectional threaded rod 19 is rotatably connected in the second rotation groove 18, and both ends of the bidirectional threaded rod 19 extend into the two second sliders 17 and are respectively threadedly connected with the two second sliders 17;

[0063] The movable groove 20 is provided on the inner wall of the second rotating groove 18 and is connected to the outside. The first sprocket 21 and the second sprocket 22 are rotatably connected in the movable groove 20, and the first sprocket 21 is fixed to the circumference of the bidirectional threaded rod 19, and a chain 23 is meshed between the first sprocket 21 and the second sprocket 22. A rotating rod 24 is fixedly connected to the second sprocket 22, and one end of the rotating rod 24 extends to the outside and is rotatably connected to the limit plate 9.

[0064] When in use, the user slides the limit plate 9 by hand to allow the limit plate 9 to slide in the third sliding groove 8. When the limit plate 9 slides to a suitable position, the user rotates the rotating rod 24 by hand to allow the rotating rod 24 to drive the second sprocket 22 to rotate in the movable groove 20, so that the second sprocket 22 drives the first sprocket 21 to rotate through the chain 23. When the first sprocket 21 drives the bidirectional threaded rod 19 to rotate in the second rotating groove 18, when the bidirectional threaded rod 19 rotates, the two second sliders 17 will be moved away from each other by the action of the threads of the bidirectional threaded rod 19, so that the two second sliders 17 respectively drive the two first sliders 10 away from each other. When the two first sliders 10 move to a position where they cannot move, it is ensured that the limit plate 9 can be fixed in the third sliding groove 8 and cannot move.

[0065] Embodiment 5:

[0066] This embodiment provides an extruded board cutting device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the two sections of threads on the bidirectional threaded rod 19 have opposite rotation directions.

[0067] It is ensured that when the bidirectional threaded rod 19 rotates, the two second sliding blocks 17 are moved away from or closer to each other by the action of the threads of the bidirectional threaded rod 19 .

[0068] Embodiment 6:

[0069] This embodiment provides an extruded board cutting device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the two transmission blocks 7 is slidably connected to the first slide groove 2, and scale lines are provided on the cutting device body 1.

[0070] Here, it is ensured that one end of the two transmission blocks 7 can slide normally in the first slide groove 2, and it is ensured that the user can adjust the position of the limit plate 9 through the scale lines set on the cutting device body 1.

[0071] When in use, the user slides the limit plate 9 by hand to allow the limit plate 9 to slide in the third sliding groove 8. When the limit plate 9 slides to a suitable position, the user turns the rotating rod 24 by hand to allow the rotating rod 24 to drive the second sprocket 22 to rotate in the movable groove 20, so that the second sprocket 22 drives the first sprocket 21 to rotate through the chain 23. When the first sprocket 21 drives the bidirectional threaded rod 19 to rotate in the second rotating groove 18, when the bidirectional threaded rod 19 rotates, the two second sliders 17 will be affected by the threads of the bidirectional threaded rod 19 to move away from each other, so that the two second sliders 17 respectively drive the two first sliders 10 to move away from each other. When the two first sliders 10 move to a position where they cannot move, it is ensured that the limit plate 9 can be fixed in the third sliding groove 8 and cannot move, so that the user can adjust the position of the limit plate 9 according to the cutting length requirements, and then the user will squeeze it by hand. The plastic plate is placed on the cutting device body 1, and the end of the extruded plate to be cut is placed against the limit plate 9. Then the user rotates the one-way threaded rod 15 by hand, so that the rack 14 is moved along the fourth slide groove 12 by the action of the one-way threaded rod 15 thread, so that the rack 14 drives the two gears 13 to rotate in the two first rotating grooves 11 respectively. When the two gears 13 rotate, the two gears 13 will respectively drive the two transmission rods 5 to rotate in the two arc grooves 4. When the two transmission rods 5 rotate, the two transmission rods 5 will respectively squeeze the two transmission blocks 7 through the two second slide grooves 6, so that the two transmission blocks 7 respectively drive the two correcting plates 3 to approach each other. When the two correcting plates 3 move to the appropriate position, the user stops rotating the one-way threaded rod 15. At this time, the two correcting plates 3 will be in contact with the two sides of the extruded plate to ensure that the extruded plate will not deviate during cutting.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An extruded board cutting device, characterized in that: include: A cutting device body (1) and a first slide groove (2), wherein the first slide groove (2) is provided on the cutting device body (1), and two deviation correcting plates (3) are slidably connected in the first slide groove (2); Two arc grooves (4), the two arc grooves (4) are arranged in the cutting device body (1) and are connected to the first slide groove (2), the two arc grooves (4) are respectively rotatably connected to two transmission rods (5), the two transmission rods (5) are respectively arranged with two second slide grooves (6), the two second slide grooves (6) are respectively slidably connected to two transmission blocks (7), and one end of the two transmission blocks (7) extends into the first slide groove (2) and is respectively fixed to the bottom ends of the two deviation correcting plates (3); A rotating assembly, which is located in the cutting device body (1) and is used to drive the two transmission rods (5) to rotate; A third slide groove (8), wherein the third slide groove (8) is provided on the cutting device body (1), wherein a limiting plate (9) is slidably connected in the third slide groove (8), wherein two first sliding blocks (10) are slidably connected in the third slide groove (8), and the two first sliding blocks (10) are respectively located on two sides of the limiting plate (9); A driving assembly is located in the limiting plate (9) and is used to drive the two first sliding blocks (10) to move.

2. The extruded board cutting device according to claim 1, characterized in that: The rotating assembly comprises: Two first rotating grooves (11), the two first rotating grooves (11) are respectively opened on the inner wall bottom surfaces of the two arc-shaped grooves (4), two gears (13) are respectively rotatably connected in the two first rotating grooves (11), and the two gears (13) are respectively fixed to the two transmission rods (5); A fourth slide groove (12), wherein the fourth slide groove (12) is provided in the cutting device body (1) and is connected to the two first rotating grooves (11); a rack (14) meshing with the two gears (13) is slidably connected in the fourth slide groove (12); a one-way threaded rod (15) is threadedly connected to the rack (14); and one end of the one-way threaded rod (15) passes through the inner wall of the fourth slide groove (12) and extends to the outside to be rotationally connected to the cutting device body (1).

3. An extruded board cutting device according to claim 2, characterized in that: One end of the one-way threaded rod (15) is fixedly connected to a handle.

4. The extruded board cutting device according to claim 1, characterized in that: The drive assembly comprises: Two through grooves (16), the two through grooves (16) are symmetrically arranged in the limiting plate (9) and are connected to the third sliding groove (8), two second sliding blocks (17) are slidably connected in the two through grooves (16), and one end of the two second sliding blocks (17) is fixed to the two first sliding blocks (10) respectively; A second rotation groove (18), the second rotation groove (18) is provided in the limiting plate (9) and is connected to the two through grooves (16), a bidirectional threaded rod (19) is rotatably connected in the second rotation groove (18), and two ends of the bidirectional threaded rod (19) respectively extend into the two second sliders (17) and are respectively threadedly connected to the two second sliders (17); A movable groove (20), wherein the movable groove (20) is formed on the inner wall of the second rotating groove (18) and is in communication with the outside, wherein a first sprocket (21) and a second sprocket (22) are rotatably connected in the movable groove (20), and the first sprocket (21) is fixed to the circumference of the bidirectional threaded rod (19), a chain (23) is meshed between the first sprocket (21) and the second sprocket (22), and a rotating rod (24) is fixedly connected to the second sprocket (22), and one end of the rotating rod (24) extends to the outside and is rotatably connected to the limiting plate (9).

5. The extruded board cutting device according to claim 4, characterized in that: The two sections of threads on the bidirectional threaded rod (19) have opposite rotation directions.

6. The extruded board cutting device according to claim 1, characterized in that: One end of the two transmission blocks (7) is slidably connected to the first slide groove (2), and a scale line is provided on the cutting device body (1).

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