A fixed-length cutting device for insulation boards

Abstract

The present application relates to the field of processing of thermal insulation board, and discloses a fixed-length slitting device for thermal insulation board, which comprises a material conveying belt, one side of the material conveying belt is fixedly provided with a portal frame, a pressing frame is movably arranged in the middle of the portal frame, a pressing block is arranged below the pressing frame, a sliding table is movably arranged in the pressing block, a cylinder is fixedly arranged at the bottom end of the sliding table, a second motor is fixedly arranged at the rear end of the cylinder, the driving end of the second motor extends into the cylinder and is fixedly provided with a driving gear, a transmission shaft is movably arranged at one side of the cylinder, a driven gear is fixedly arranged on the middle outer diameter of the transmission shaft and is connected with the inner side end of the driving gear in meshing mode. The present application can automatically and accurately correct the board, uniformly fix the board in an elastic manner to prevent damage and resist vibration, and can cut the board with vibration to improve quality and reduce energy consumption, the movement of the saw blade is controllable and safer, the whole process is automatically controlled to reduce cost and improve efficiency, and the present application is also suitable for different boards and has a stable structure and is easy to maintain.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation board processing, specifically to a fixed-length slitting device for thermal insulation boards. Background Technology

[0002] In the field of thermal insulation board processing, fixed-length slitting is a crucial process to ensure the adaptability of the boards for subsequent construction. However, traditional slitting equipment has many technical shortcomings in practical applications, making it difficult to meet the demands for efficient and precise processing. Currently, most equipment lacks automated board straightening mechanisms. After the boards to be cut are placed on the conveyor belt, their position is easily shifted due to manual loading deviations or vibrations from the conveyor belt, requiring frequent manual adjustments. Manual straightening is not only inefficient but also prone to inconsistent cutting benchmarks due to operational errors, ultimately resulting in significant dimensional deviations in the cut boards. This fails to meet the dimensional consistency requirements of mass production, significantly increasing subsequent rework costs.

[0003] Meanwhile, traditional methods of fixing the insulation panels also have significant drawbacks. Existing fixing structures mostly employ rigid pressure, using cylinders or hydraulic cylinders to directly drive pressure blocks to compress the panel surface. Since insulation panels are mostly porous and lightweight, rigid pressure easily leads to excessive localized stress, causing damage such as deformation and cracking. If the pressure is reduced to avoid damage, the panel may shift due to vibration during cutting, affecting cutting accuracy. Furthermore, while some equipment attempts to use elastic elements for auxiliary fixing, the elastic force fluctuates significantly with the amount of compression, making it impossible to maintain uniform pressure and balance the dual requirements of panel protection and fixing stability.

[0004] In the cutting process, traditional equipment generally uses a high-speed rotating saw blade. This method has two main drawbacks: firstly, it results in significant cutting resistance, easily causing burrs and delamination at the cut edges of the insulation board, requiring additional grinding and extending the processing time; secondly, the high-speed rotating saw blade is exposed, and its movement is uncontrollable. Accidental contact by the operator or misalignment of the board can easily lead to accidents, posing a significant safety hazard. Furthermore, traditional rotary cutting requires high saw blade torque, and when dealing with insulation boards of varying thicknesses, excessive load can reduce cutting efficiency, making it difficult to adapt to diverse processing needs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fixed-length slitting device for thermal insulation boards, which solves the problems of low efficiency due to manual correction, damage to the boards due to rigid fixing, and numerous and dangerous burrs during rotary cutting. It achieves automated correction, uniform fixing, and safe and efficient vibration cutting.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixed-length slitting device for thermal insulation boards, comprising a conveyor belt, a gantry frame fixedly installed on one side of the conveyor belt, a pressing frame movably installed in the middle of the gantry frame, a pressing block disposed below the pressing frame, a slide table movably installed inside the pressing block, a cylinder fixedly installed at the bottom end of the slide table, a second motor fixedly installed at the rear end of the cylinder, the drive end of the second motor extending into the interior of the cylinder and fixedly installed with a drive gear, a transmission shaft movably installed on one side of the interior of the cylinder, and a driven gear fixedly installed on the outer diameter of the middle part of the transmission shaft. The driven gear and the inner end of the driving gear are meshed together. A cam is fixedly installed at the end of the driven gear. A first connecting rod is movably installed at the end of the cam. A central shaft is movably installed in the middle of the cylinder. A second connecting rod is fixedly installed at the end of the central shaft near the second motor, and the end of the second connecting rod is movably installed at the end of the first connecting rod. An output shaft is movably installed on the other side of the cylinder. A straight slot is opened at the front end of the cylinder. A cutting saw blade is fixedly installed through the straight slot of the output shaft. A torsion beam is fixedly installed at the inner end of the central shaft and the output shaft. A spring is fixedly installed in the middle of the torsion beam.

[0007] A hydraulic cylinder is fixedly installed at the top center of the gantry frame, and the drive end of the hydraulic cylinder is fixedly installed at the top center of the pressure frame.

[0008] A cross frame is fixedly installed inside the material pressing frame. Rotating frames are movably installed at both ends of the cross frame. Spring plates are fixedly installed on both sides of the cross frame, and the ends of the spring plates extend into the interior of the corresponding rotating frames.

[0009] Each of the rotating frames has a pressure roller fixedly installed on one side inside, and the top of the pressure roller abuts against the lower surface of the spring plate on the corresponding side. Each of the rotating frames has a connecting plate movably installed at the bottom end, and a pressure plate movably installed at the end of each connecting plate. The ends of the pressure plates extend to the outside of the pressing frame and are fixedly installed on both sides of the top of the pressing block.

[0010] A lead screw is movably installed on one side of the pressure block, and the outer diameter of the lead screw is threadedly connected to the inner side of the slide table. A first guide rod is fixedly installed on the other side of the pressure block, and the outer diameter of the first guide rod is movably set on the other side of the slide table. A first motor is fixedly installed on one side of the pressure block, and the drive end of the first motor is fixedly installed on one end of the lead screw.

[0011] The conveyor belt has uprights fixedly installed on both sides of the middle section. The inner end of each upright is movably installed on both ends of a bidirectional threaded rod. Movable blocks are threaded onto the outer diameter of both sides of the bidirectional threaded rod. Straightening plates are fixedly installed on the bottom of each movable block.

[0012] The top of the inner end of the upright is fixedly installed at both ends of the second guide rod, and the outer diameters of the two sides of the second guide rod are respectively movably set at the inner top of the corresponding movable block. The outer end of the upright on the right side is fixedly installed with a third motor, and the drive end of the third motor is fixedly installed at one end of the bidirectional threaded rod.

[0013] An industrial camera is fixedly installed at the rear end of the pressure block.

[0014] This invention provides a fixed-length cutting device for thermal insulation boards. It has the following beneficial effects:

[0015] 1. This invention, through the synergistic action of a third motor, a bidirectional threaded rod, a movable block, and straightening plates, drives two straightening plates to move synchronously inward when the sheet material is transported to the middle of the conveyor belt, pushing the sheet material to the exact center of the conveyor belt. This straightening process is fully automated, requiring no manual adjustment, effectively avoiding the deviation problems that easily occur during manual straightening, ensuring the uniform position of each sheet material to be cut, providing a precise benchmark for subsequent fixed-length cutting, reducing cutting size errors caused by sheet material offset from the source, and improving the consistency of cutting dimensions.

[0016] 2. This invention employs a unique elastic pressure application structure. When the hydraulic cylinder drives the pressure frame to descend, and the pressure block contacts the sheet material, the pressure plate, through the connecting plate, drives the rotating frame to bend. The pressure roller bends the spring plate, and the elastic force generated by the spring plate is transmitted to the pressure block through the rotating frame, connecting plate, and pressure plate, ultimately acting evenly on the surface of the sheet material. On the one hand, this elastic pressure application method avoids squeezing damage to the insulation sheet material due to excessive pressure, protecting the structural integrity of the sheet material. On the other hand, when the pressure roller slides on the surface of the spring plate, it increases the elastic arm as the spring plate bends, compensating for the change in elastic force during the bending process of the spring plate, ensuring that the pressure applied to the surface of the sheet material remains uniform. Even when vibrations occur during subsequent cutting, the sheet material can still maintain a stable and fixed state, laying the foundation for high-quality cutting.

[0017] 3. This invention employs a high-speed, small-angle reciprocating vibration cutting method using a cutting saw blade. A second motor drives the drive gear, driven gear, cam, connecting rod, and torsion beam, enabling the cutting saw blade to reciprocate at a small angle. This vibration cutting not only significantly reduces cutting resistance and lowers equipment energy consumption, but also polishes the cut during the cutting process, effectively reducing common problems such as burrs and cracking after cutting insulation boards, and significantly improving cut smoothness and cutting quality. Simultaneously, as the torsion beam's deflection speed increases, its two ends gradually resonate at the same frequency, increasing the output shaft torque, effectively counteracting the cutting load, and ensuring a stable and efficient cutting process, making it particularly suitable for cutting insulation boards of varying thicknesses. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the material pressing frame in this invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the pressure rack in this invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the pressure block in this invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the cylinder in this invention;

[0023] Figure 6 This is a side perspective view of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0025] The components include: 1. Conveyor belt; 2. Gantry frame; 3. Pressing frame; 4. Pressing block; 5. Hydraulic cylinder; 6. Horizontal frame; 7. Rotating frame; 8. Spring plate; 9. Pressure roller; 10. Connecting plate; 11. Pressure plate; 12. Slide table; 13. Lead screw; 14. First guide rod; 15. First motor; 16. Cylinder; 17. Second motor; 18. Drive gear; 19. Transmission shaft; 20. Driven gear; 21. Cam; 22. First connecting rod; 23. Central shaft; 24. Second connecting rod; 25. Output shaft; 26. Cutting saw blade; 27. Torsion beam; 28. Spring piece; 29. ​​Straight groove; 30. Vertical frame; 31. Bidirectional threaded rod; 32. Movable block; 33. Second guide rod; 34. Straightening plate; 35. Third motor; 36. Industrial camera. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] For examples, please refer to the appendix. Figure 1 -Appendix Figure 7 This invention provides a fixed-length cutting device for thermal insulation boards, such as... Figure 1As shown, the system includes a conveyor belt 1, which serves as the core carrier for transporting the insulation boards. It stably supports the insulation boards to be cut and moves them along a set path, providing a continuous material transport foundation for subsequent straightening, fixing, and cutting processes. It is a crucial starting point for achieving fully automated operation. A gantry frame 2 is fixedly installed on one side of the conveyor belt 1. The gantry frame 2 provides a stable support frame for the pressing and cutting structure of the entire equipment. Its vertical and symmetrical structural design ensures that the pressing frame 3 remains balanced during lifting, preventing pressing or cutting deviations due to unstable support, thus providing structural assurance for subsequent precise processing. A pressing frame 3 is movably installed in the middle of the gantry frame 2. The pressing frame 3 can move up and down under the limiting action of the gantry frame 2. The key component transmitting the driving force of the hydraulic cylinder 5 moves to synchronously raise and lower the pressure block 4 below, thereby completing the pressing and fixing action of the plate, creating a stable plate state for the cutting process. The pressure block 4 is set below the pressure rack 3. The pressure block 4 is in direct contact with the surface of the plate and is the direct component for fixing the plate. Its flat lower surface ensures uniform force when in contact with the plate. At the same time, under the action of the pressure plate 11, it can stably transmit the elastic pressure generated by the spring plate 8 to the surface of the plate, avoiding excessive local pressure that could damage the plate. The pressure block 4 has a movable slide table 12 installed inside. The slide table 12 can move in a set direction inside the pressure block 4 and is the core component for adjusting the position of the cutting-related components. Its movement can drive the cylinder 16 and the cutting saw blade 26. Synchronous movement enables cutting at different positions on the sheet metal, meeting the requirements for fixed-length slitting. A cylinder 16 is fixedly installed at the bottom of the slide table 12. The cylinder 16 provides a closed installation and protection space for the internal transmission components, preventing dust, debris, and other impurities from affecting the normal operation of the transmission components. Its stable structure ensures precise meshing and linkage of internal components such as the drive gear 18 and driven gear 20, guaranteeing stable vibration of the cutting saw blade 26. A second motor 17 is fixedly installed at the rear end of the cylinder 16. The second motor 17 is the power source driving the vibration of the cutting saw blade 26. Its output rotational power can be transmitted to the drive gear 18 through the drive end, thereby driving a series of subsequent transmission components to operate, providing continuous power for the high-speed, small-angle reciprocating oscillation of the cutting saw blade 26. Furthermore, a stable power source is provided. The drive end of the second motor 17 extends into the interior of the cylinder 16 and is fixedly mounted with a drive gear 18. As the first key component for power transmission, the drive gear 18 transmits the rotational power of the second motor 17 to the driven gear 20. Through meshing with the driven gear 20, the direction and speed of power transmission are changed, providing suitable power for the subsequent rotation of the cam 21. A transmission shaft 19 is movably mounted on one side of the interior of the cylinder 16. The transmission shaft 19 is the transmission carrier connecting the driven gear 20 and the cam 21, which can stably transmit the rotational power of the driven gear 20 to the cam 21, ensuring that the cam 21 can rotate synchronously with the driven gear 20. At the same time, its movable mounting method can reduce frictional resistance during rotation and ensure high efficiency in power transmission.A driven gear 20 is fixedly mounted on the outer diameter of the middle part of the drive shaft 19, and the driven gear 20 meshes with the inner end of the driving gear 18. The driven gear 20 receives and transmits power through meshing with the driving gear 18. The number of its teeth matches the number of teeth of the driving gear 18 to adjust the transmission ratio, thereby controlling the rotation speed of the cam 21 and providing a basis for adjusting the vibration frequency of the cutting saw blade 26. The cam 21 is fixedly mounted on the end of the driven gear 20. The cam 21, through its own eccentric structure, drives the end of the first connecting rod 22 to reciprocate during rotation, converting rotational power into linear reciprocating power. It is a key power conversion component for realizing the oscillation of the cutting saw blade 26. Its precise contour design ensures the stability and regularity of the movement of the first connecting rod 22. A first connecting rod 22 is movably mounted at the end of cam 21. The first connecting rod 22 is a transmission component connecting cam 21 and second connecting rod 24, transmitting the reciprocating motion generated by the rotation of cam 21 to the second connecting rod 24. Its movable mounting allows for flexible angle adjustment at both ends during movement, avoiding stress damage caused by rigid connections between components. A central shaft 23 is movably mounted in the center of cylinder 16. The central shaft 23 is the core shaft driving the torsion beam 27 to swing. Driven by the second connecting rod 24, it can perform small-angle reciprocating swings, converting the power transmitted by the second connecting rod 24 into torque on the torsion beam 27. Its movable mounting structure ensures smooth swinging and reduces mechanical wear. A second connecting rod is fixedly mounted at the end of the central shaft 23 closest to the second motor 17. The end of the second connecting rod 24 is movably mounted on the end of the first connecting rod 22. The second connecting rod 24 is a key component connecting the first connecting rod 22 and the central shaft 23. It can convert the reciprocating motion of the first connecting rod 22 into the rotational swing of the central shaft 23. Its length and installation angle design directly affect the swing amplitude of the central shaft 23, thereby determining the vibration range of the cutting saw blade 26. An output shaft 25 is movably mounted on the other side of the cylinder 16. The output shaft 25 is a transmission shaft connecting the torsion beam 27 and the cutting saw blade 26. It can convert the torque transmitted by the torsion beam 27 into the swing power of the cutting saw blade 26. At the same time, its design through the straight groove 29 allows it to move along the straight groove 29 during the swing, ensuring that the cutting saw blade 26 can stably achieve small-angle reciprocating motion. The front end of the output shaft 25 is provided with a straight groove 29, which provides a limit and guide for the swing of the output shaft 25. This ensures that the output shaft 25 reciprocates within a set range, preventing collisions between the cutting saw blade 26 and the cylinder 16 or other components due to deviation in the motion trajectory, thus ensuring the safety and stability of the cutting process. The cutting saw blade 26 is fixedly installed inside the straight groove 29 through the output shaft 25. The cutting saw blade 26 is the direct actuator for cutting the plate. It cuts the plate through high-speed, small-angle reciprocating vibration. Compared with traditional rotary cutting, it not only reduces cutting resistance and improves the cutting quality by polishing the cut, but also reduces the risk of injury due to the controllable range of motion. A torsion beam 27 is fixedly installed on the inner end of the central shaft 23 and the output shaft 25.The torsion beam 27 possesses excellent elasticity and torque transmission performance. It stores and transmits torque to the output shaft 25 during the swing of the central shaft 23, causing the output shaft 25 to swing synchronously. Simultaneously, as the deflection speed of the torsion beam 27 increases, the two ends gradually resonate at the same frequency, increasing the torque of the output shaft 25 and effectively counteracting the cutting load. A spring plate 28 is fixedly installed in the middle of the torsion beam 27. The spring plate 28 enhances the elastic recovery capability of the torsion beam 27, assisting it in quickly returning to its initial state after deflection. This ensures that the torsion beam 27 can continuously and stably transmit torque, preventing unstable swing amplitude of the cutting saw blade 26 due to insufficient elasticity of the torsion beam 27.

[0028] In this embodiment, a hydraulic cylinder 5 is fixedly installed at the top center of the gantry frame 2, and the driving end of the hydraulic cylinder 5 is fixedly installed at the top center of the pressure frame 3. The hydraulic cylinder 5 is the power source for driving the pressure frame 3 to rise and fall. It generates a stable driving force through hydraulic transmission, which drives the pressure frame 3 and the pressure block 4 below to rise and fall precisely. Its controllable lifting speed and pressure can ensure that the pressure block 4 can provide sufficient pressure to fix the plate when it contacts the plate, while avoiding excessive pressure that could damage the plate. It is a key power component for achieving stable fixing of the plate.

[0029] Furthermore, a crossbeam 6 is fixedly installed inside the pressure frame 3. The crossbeam 6 provides a mounting support base for components such as the rotating frame 7 and the spring plate 8. Its fixed installation inside the pressure frame 3 ensures the stability of the position of each component and prevents displacement during the lifting and lowering of the pressure frame 3, thus ensuring the stable operation of the subsequent elastic pressure structure. Rotating frames 7 are movably installed at both ends of the crossbeam 6. The rotating frames 7 can rotate around the ends of the crossbeam 6 at a certain angle. They are key components for transmitting the force of the pressure plate 11 and the elastic force of the spring plate 8. Through their rotation, the force of the pressure plate 11 can be converted into the pressure roller 9. The pressure on the spring plate 8 simultaneously transmits the elastic force of the spring plate 8 in the opposite direction to the pressure plate 11. The spring plates 8 are fixedly installed on both sides of the inside of the cross frame 6, and the ends of the spring plates 8 extend into the interior of the corresponding side rotating frame 7. The spring plate 8 has good elasticity and is the core component for generating elastic pressure. When it is bent by the pressure roller 9, it will generate a reverse elastic force. This elastic force is transmitted to the pressure block 4 through the rotating frame 7, the connecting plate 10, and the pressure plate 11, and finally acts on the surface of the plate to achieve elastic fixation of the plate. Its design of extending into the interior of the rotating frame 7 can ensure that the pressure roller 9 can stably act on the surface of the spring plate 8.

[0030] Furthermore, pressure rollers 9 are fixedly installed on one side of the interior of the rotating frame 7, and the tops of the pressure rollers 9 abut against the lower surface of the corresponding spring plates 8. The pressure rollers 9 can apply pressure to the spring plates 8 under the drive of the rotating frame 7, causing the spring plates 8 to bend. At the same time, during the bending process of the spring plates 8, the pressure rollers 9 will slide relative to the surface of the spring plates 8, increasing the lever arm of the spring plates 8, compensating for the change in elastic force when the spring plates 8 bend, and ensuring that the elastic force generated by the spring plates 8 is always uniform. A connecting plate 10 is movably installed at the bottom of the rotating frame 7. The connecting plate 10 is a transmission component that connects the rotating frame 7 and the pressure plate 11. It can transmit the lifting force received by the pressure plate 11 to the rotating frame 7, driving the rotating frame 7 to rotate. At the same time, it transmits the elastic force of the spring plates 8 transmitted by the rotating frame 7 in the opposite direction to the pressure plate 11. Its movable installation method can adapt to the rotating frame 7 and the pressure plate 11. The angle change between 11 avoids damage to components caused by rigid connection. Each end of the connecting plate 10 is movably mounted with a pressure plate 11. The pressure plate 11 is a key component connecting the connecting plate 10 and the pressure block 4. One end is movably connected to the connecting plate 10, and the other end is fixed to the top of the pressure block 4. When the pressure block 4 continues to descend after contacting the plate, the pressure plate 11 will be lifted by the pressure block 4, which will then drive the rotating frame 7 to rotate through the connecting plate 10. At the same time, the elastic force of the spring plate 8 will be transmitted to the pressure block 4. The ends of the pressure plates 11 extend to the outside of the pressure frame 3 and are fixedly installed on both sides of the top of the pressure block 4. The design of the pressure plates 11 extending to the outside of the pressure frame 3 and being fixed on both sides of the top of the pressure block 4 can ensure that the elastic force on the pressure block 4 is evenly distributed on both sides of the top, avoiding the pressure block 4 from tilting due to uneven force, and ensuring that the pressure of the pressure block 4 on the plate is uniform.

[0031] Furthermore, a lead screw 13 is movably installed on one side of the interior of the pressure block 4, and the outer diameter of the lead screw 13 is threadedly connected to one side of the interior of the slide table 12. The lead screw 13 drives the slide table 12 to make linear motion through rotation. The threaded connection between the lead screw 13 and the slide table 12 can achieve precise position adjustment, ensuring that the slide table 12 can drive the cutting saw blade 26 to the set cutting position to meet the fixed length cutting requirements. At the same time, the self-locking property of the threaded drive can ensure that the slide table 12 maintains a stable position during the cutting process. A first guide rod 14 is fixedly installed on the other side of the interior of the pressure block 4, and the outer diameter of the first guide rod 14 is movably set on the other side of the interior of the slide table 12. The first guide rod 14 controls the movement of the slide table 12. The limit and guide functions prevent the slide table 12 from rotating or deviating under the drive of the lead screw 13, ensuring that the slide table 12 always moves in the set direction, thereby ensuring the accuracy of the cutting trajectory of the cutting saw blade 26. The first motor 15 is fixedly installed on one side of the pressure block 4, and the drive end of the first motor 15 is fixedly installed on one end of the lead screw 13. The first motor 15 is the power source that drives the lead screw 13 to rotate. Its output rotational power can be directly transmitted to the lead screw 13. By controlling the rotation direction and speed of the first motor 15, the rotation angle and speed of the lead screw 13 can be precisely controlled, thereby adjusting the moving direction and speed of the slide table 12, and realizing precise control of the cutting position and cutting speed.

[0032] Furthermore, uprights 30 are fixedly installed on both sides of the middle section of the conveyor belt 1. The uprights 30 provide stable installation support for the straightening components such as the bidirectional threaded rod 31 and the second guide rod 33. Their symmetrical installation on both sides of the conveyor belt 1 ensures that the straightening structure exerts symmetrical force on the plate, avoiding plate displacement during the straightening process and providing structural guarantee for accurate straightening. The inner middle section of the uprights 30 is movably installed at both ends of the bidirectional threaded rod 31. The bidirectional threaded rod 31 consists of two threaded rods with opposite helical directions and is the core component that drives the movable blocks 32 to move synchronously. By rotating it, the movable blocks 32 on both sides can move synchronously in opposite directions, thereby driving the straightening plate 34 to push and straighten the plate. Its movable installation in the middle of the inner middle section of the uprights 30 can reduce the force exerted during rotation. To reduce frictional resistance and ensure smooth rotation, movable blocks 32 are threadedly connected to both outer diameters of the bidirectional threaded rod 31. The movable blocks 32 are components that connect the bidirectional threaded rod 31 and the straightening plate 34. Through the threaded connection with the bidirectional threaded rod 31, the rotational motion of the bidirectional threaded rod 31 is converted into its own linear motion, thereby driving the straightening plate 34 to move synchronously. The cooperation between its interior and the second guide rod 33 ensures that no rotation occurs during the movement. The straightening plate 34 is fixedly installed at the bottom of each movable block 32. The straightening plate 34 is the direct action component for straightening the plate. Its vertical and flat inner surface can make uniform contact with the side of the plate. Driven by the movable blocks 32, it moves inward synchronously, pushing the plate to the center of the conveyor belt 1 to ensure uniform plate position and provide a precise benchmark for subsequent cutting.

[0033] Furthermore, the top of the inner end of the upright frame 30 is fixedly installed at both ends of the second guide rod 33, and the outer diameters of the two sides of the second guide rod 33 are respectively movably set at the inner top of the corresponding side movable block 32. The second guide rod 33 plays a limiting and guiding role in the movement of the movable block 32, which can prevent the movable block 32 from rotating or deviating under the drive of the bidirectional threaded rod 31, ensuring that the two movable blocks 32 always move synchronously in a direction parallel to the material conveyor belt 1, thereby ensuring the straightening effect of the straightening plate 34 on the plate. The outer end of the right upright frame 30 is fixedly installed with a third motor 35, and the driving end of the third motor 35 is fixedly installed at one end of the bidirectional threaded rod 31. The third motor 35 is the power source for driving the bidirectional threaded rod 31 to rotate. Its output rotational power can be directly transmitted to the bidirectional threaded rod 31. By controlling the rotation direction and speed of the third motor 35, the rotation angle and speed of the bidirectional threaded rod 31 can be precisely controlled, thereby adjusting the moving direction and speed of the straightening plate 34, and realizing the precise straightening of plates of different widths.

[0034] Furthermore, an industrial camera 36 is fixedly installed at the rear end of the pressing block 4. As a vision inspection component, the industrial camera 36 can capture the specific position of the board on the conveyor belt in real time, determine the edge position and length of the board through image recognition technology, and then determine the length to be cut. It provides accurate position signals for the start and stop of the conveyor belt 1 and the cutting position adjustment of the cutting saw blade 26. It is a key sensing component for realizing the automation of fixed-length slitting. Its fixed installation at the rear end of the pressing block 4 can ensure that the shooting angle can completely cover the board and capture accurate position information.

[0035] Working principle: The insulation board to be cut is placed on the conveyor belt 1. The conveyor belt 1 is started, and the board is transported to the middle of the conveyor belt 1. At this time, the third motor 35 is started, which drives the bidirectional threaded rod 31 to rotate. Since the bidirectional threaded rod 31 is composed of two threaded rods with opposite helical directions, when it moves, the limiting action of the second guide rod 33 will drive the two movable blocks 32 to move inward synchronously, thereby driving the two straightening plates 34 to move inward synchronously, pushing the board on the surface of the conveyor belt 1 inward until it is pushed to the center of the conveyor belt 1 to complete the straightening of the board. Then, the industrial camera 36 captures the specific position of the board, determines the length to be cut, and the conveyor belt 1 continues to transport the board. The material is transported to the bottom of the gantry 2, after which the conveyor belt 1 stops moving. At this time, the hydraulic cylinder 5 is activated, driving the pressure frame 3 and the pressure block 4 to descend. When the pressure block 4 contacts the surface of the material, the hydraulic cylinder 5 continues to control the descent of the pressure frame 3. The pressure block 4 then lifts the pressure plate 11, which, through the connecting plate 10, causes the two rotating frames 7 to bend. When the rotating frames 7 bend, the pressure roller 9 bends the spring plate 8. The bent spring plate 8 generates elastic force, which acts in the opposite direction on the rotating frame 7. Through the action of the connecting plate 10 and the pressure plate 11, and through the pressure block 4, the material is applied to the surface of the material, thus fixing it in place for subsequent cutting. This ensures the stability of the material without causing damage due to excessive pressure. When the outer pressure roller 9 bends the spring plate 8, it slides relative to the surface of the spring plate 8, which increases the lever arm of the bent spring plate 8. This compensates for the gradually increasing elastic force as the spring plate 8 bends, ensuring that the elastic force generated by the spring plate 8 remains uniform. Consequently, the pressure applied to the surface of the plate remains uniform, maintaining stable pressure even if vibration occurs during subsequent cutting. Then, the second motor 17 is started, driving the drive gear 18 to rotate, which in turn drives the driven gear 20 and the transmission shaft 19 to rotate. When the transmission shaft 19 rotates, it drives the cam 21 and the first connecting rod 22 to rotate. The end of the first connecting rod 22 drives one end of the second connecting rod 24 to follow the movement, thereby causing the other end of the second connecting rod 24 to move at a small angle to the central shaft 23. The central shaft 23 begins to oscillate, causing one end of the torsion beam 27 to deflect. This stores and transmits torque to the other end of the torsion beam 27, causing the output shaft 25 and the cutting saw blade 26 to oscillate accordingly. The high-speed, small-angle reciprocating vibration of the cutting saw blade 26 achieves the cutting of the board. This method not only reduces cutting resistance but also polishes the cut, improving cutting quality. Compared to traditional rotary cutting, it effectively prevents injury from the cutting saw blade 26, making it safer. As the deflection speed of the torsion beam 27 increases, the oscillations at both ends gradually synchronize. The resulting resonance increases the torque output by the output shaft 25, effectively counteracting the load generated by the cutting saw blade 26 during cutting, thus improving the cutting effect. Finally, the first motor 15 is activated.The first motor 15 drives the lead screw 13 to rotate, and the first guide rod 14 limits its movement, causing the slide table 12 to move. This, in turn, moves the cylinder 16 and the cutting saw blade 26, thus achieving the cutting of the sheet metal.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed-length slitting device for thermal insulation boards, comprising a conveyor belt (1), characterized in that, A gantry frame (2) is fixedly installed on one side of the conveyor belt (1). A pressure frame (3) is movably installed in the middle of the gantry frame (2). A pressure block (4) is provided below the pressure frame (3). A slide table (12) is movably installed inside the pressure block (4). A cylinder (16) is fixedly installed at the bottom end of the slide table (12). A second motor (17) is fixedly installed at the rear end of the cylinder (16). The drive end of the second motor (17) extends into the inside of the cylinder (16) and a drive gear (18) is fixedly installed thereon. A transmission shaft (19) is movably installed on one side of the inside of the cylinder (16). A driven gear (20) is fixedly installed on the outer diameter of the middle part of the transmission shaft (19), and the driven gear (20) meshes with the inner end of the drive gear (18). A cam (21) is fixedly installed at the end of the cylinder (16), and a first connecting rod (22) is movably installed at the end of the cam (21). A central shaft (23) is movably installed in the middle of the cylinder (16). A second connecting rod (24) is fixedly installed at one end of the central shaft (23) near the second motor (17), and the end of the second connecting rod (24) is movably installed at the end of the first connecting rod (22). An output shaft (25) is movably installed on the other side of the cylinder (16). A straight slot (29) is opened at the front end of the cylinder (16). A cutting saw blade (26) is fixedly installed through the straight slot (29) of the output shaft (25). A torsion beam (27) is fixedly installed on the inner side of the central shaft (23) and the output shaft (25). A spring piece (28) is fixedly installed in the middle of the torsion beam (27). The material pressing frame (3) has a cross frame (6) fixedly installed inside. Both ends of the cross frame (6) are movably installed with rotating frames (7). Both sides of the cross frame (6) are fixedly installed with spring plates (8), and the ends of the spring plates (8) extend into the interior of the corresponding rotating frames (7). Each of the rotating frame (7) has a pressure roller (9) fixedly installed on one side inside, and the top of the pressure roller (9) abuts against the lower surface of the spring plate (8) on the corresponding side. Each of the rotating frame (7) has a connecting plate (10) movably installed at the bottom end. Each of the connecting plates (10) has a pressure plate (11) movably installed at the end of the pressure plate (11). The end of the pressure plate (11) extends to the outside of the pressure frame (3) and is fixedly installed on both sides of the top of the pressure block (4). The conveyor belt (1) has a support frame (30) fixedly installed on both sides of the middle section. The inner end of the support frame (30) is movably installed on both ends of the bidirectional threaded rod (31). Movable blocks (32) are threadedly connected to the outer diameter of both sides of the bidirectional threaded rod (31). Straightening plates (34) are fixedly installed at the bottom of the movable blocks (32).

2. The fixed-length cutting equipment for thermal insulation boards according to claim 1, characterized in that, A hydraulic cylinder (5) is fixedly installed at the top center of the gantry frame (2), and the driving end of the hydraulic cylinder (5) is fixedly installed at the top center of the pressure frame (3).

3. The fixed-length cutting equipment for thermal insulation boards according to claim 1, characterized in that, A lead screw (13) is movably installed on one side of the pressure block (4), and the outer diameter of the lead screw (13) is threadedly connected to one side of the slide table (12). A first guide rod (14) is fixedly installed on the other side of the pressure block (4), and the outer diameter of the first guide rod (14) is movably set on the other side of the slide table (12). A first motor (15) is fixedly installed on one side of the pressure block (4), and the drive end of the first motor (15) is fixedly installed on one end of the lead screw (13).

4. The fixed-length cutting equipment for thermal insulation boards according to claim 1, characterized in that, The top of the inner end of the support frame (30) is fixedly installed at both ends of the second guide rod (33), and the outer diameters of the two sides of the second guide rod (33) are movably set at the inner top of the corresponding side movable block (32). The outer end of the right side support frame (30) is fixedly installed with a third motor (35), and the drive end of the third motor (35) is fixedly installed at one end of the bidirectional threaded rod (31).

5. The fixed-length cutting equipment for thermal insulation boards according to claim 1, characterized in that, An industrial camera (36) is fixedly installed at the rear end of the pressure block (4).

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