An on-line controlled web width cutter device

Abstract

The application discloses an online control out-sheet width cutter device, which belongs to the technical field of cutter devices. The device comprises a rack, a calender assembly and a trimming assembly which are installed on the rack. The calender assembly comprises an upper compression roller and a lower compression roller which are arranged in parallel on the rack. The trimming assembly comprises a deflection shaft which is rotatably arranged on the rack, two groups of deflection arms which are slidably arranged on the deflection shaft, and a cutter which is installed on the deflection arms. A scraper is fixedly arranged on the rack and located on one side of the lower compression roller and in contact with the lower compression roller. The scraper is provided with a sliding groove which extends along the axial direction of the lower compression roller. Two abutting mechanisms are slidably arranged in the sliding groove. The device has the beneficial effect of providing an online control out-sheet width cutter device. During the width adjustment process, the cutter is switched to the retracted state, the abutting wheel is simultaneously stored in the first state, and the flexible adjustment of the out-sheet width is realized through the synchronous movement of the abutting wheel and the cutter.

Description

Technical Field

[0001] This application relates to the field of cutting device technology, and more specifically, to a cutting device for online control of sheet width. Background Technology

[0002] In rubber processing, rubber needs to be processed by an open mill or calender, and then flattened by roller calendering. The final product is a sheet material with a sheet structure. Currently, a cutting device is needed to cut off the irregular edges of the pressed rubber sheet so that the final product is of a suitable width. However, the lateral position of the cutting blade of the traditional cutting device relies on manual adjustment when the machine is stopped. When changing the product width specification, the entire line must be stopped for disassembly and adjustment. The specification switching is time-consuming, which greatly reduces the continuous operating rate of the production line and cannot meet the needs of rapid changeover of multiple specifications and small batches. Meanwhile, to avoid damage to the roller surface caused by the cutter, a cutting notch is usually set on the outer wall of the roller at the corresponding cutting position (such as the technical solution disclosed in the patent document with announcement number CN120402018B) or a cutting table (such as the technical solution disclosed in the patent document with announcement number CN1209020B). This ensures a smooth cut and protects the roller and the cutter. However, if a cutting notch is set on the outer wall of the roller, the slice width cannot be adjusted. Since the cutting notch is prone to causing surface defects in the rubber sheet, the notch is usually only set at the cutter position. If a cutting table is used, although the slice width can be adjusted by adjusting the position of the cutting table and the cutter, the material needs to be stopped during the adjustment to avoid wrinkling of the rubber sheet during the movement of the cutting table. This makes it impossible to operate without stopping the machine, which seriously affects the production line utilization rate.

[0003] Therefore, an online control device for the output width of the cutter is needed to solve the above problems. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide an online control device for cutting sheet width, comprising: a frame, on which a calendering assembly and a trimming assembly are mounted; the calendering assembly includes: an upper pressure roller and a lower pressure roller, which are spaced apart and parallel to each other on the frame, with a calendering space between them; the trimming assembly includes: a deflection shaft rotatably mounted on the frame, two sets of deflection arms slidably mounted on the deflection shaft, a cutter mounted on each deflection arm, a bidirectional lead screw rotatably mounted on the frame, and a guide block rotatably mounted on each deflection arm, the bidirectional lead screw being threadedly engaged with the guide block, the threads of the two guide blocks being in opposite directions; a scraper fixedly mounted on the frame, located on one side of the lower pressure roller and in contact with it, the scraper having a sliding groove extending axially along the lower pressure roller, two abutting mechanisms slidably mounted within the sliding groove, the abutting mechanisms having two states, a first state located within the sliding groove, and a second state protruding from the sliding groove and engaging with the cutter; The two abutment mechanisms are respectively opposite to the two cutters.

[0006] Furthermore, the abutment structure includes: an abutment block slidably disposed in a sliding groove, a deflector frame rotatably disposed in the abutment block, an abutment wheel rotatably mounted on the deflector frame, a cutting groove disposed on the abutment wheel, the cutting groove cooperating with a cutter to cut the edge, and abutment heads disposed on both sides of the cutting groove on the outer wall of the abutment wheel, the abutment heads being evenly distributed circumferentially on the outer wall of the abutment wheel, the abutment wheel being deflected by the rotation of the deflector frame, so that the abutment wheel has a state of being located in the sliding groove and a state of protruding from the sliding groove.

[0007] Furthermore, a contact part is installed on the abutment wheel, and a cutting groove is formed on the outer wall of the contact part. Multiple mounting grooves are evenly opened on the outer wall of the abutment wheel. The abutment head is slidably disposed in the mounting groove. One end of the abutment head protrudes from the mounting groove and slides radially along the abutment wheel, thereby adjusting the size of the part protruding from the mounting groove. An electromagnet is fixedly disposed inside the abutment wheel, and a magnetic head that cooperates with the electromagnet is fixedly disposed on the mounting groove. When the electromagnet is energized, it generates a magnetic repulsion force on the magnetic head. A spring is installed between the abutment head and the abutment wheel.

[0008] Furthermore, a second bidirectional lead screw is rotatably installed in the sliding groove. The second bidirectional lead screw is threadedly connected to two abutment blocks, and the threads of the two abutment blocks are in opposite directions. The pitch of the sliding groove is the same as that of the first bidirectional lead screw. A driving component is fixedly installed on the frame. The driving component is used to drive the deflection shaft and the second bidirectional lead screw to rotate synchronously.

[0009] Furthermore, a torque shaft is rotatably arranged in the sliding groove, the torque shaft passes through the abutment block, and the deflection frame has a sleeve portion that is sleeved on the torque shaft, the sleeve portion slidingly engaging with the torque shaft.

[0010] Furthermore, a second cylinder is fixedly mounted on the deflection arm, and a fork-shaped frame is fixedly mounted on the piston rod end of the second cylinder, with the cutter rotatably mounted on the fork-shaped frame.

[0011] Furthermore, a first cylinder is mounted on the frame via a pin, and a connecting arm is fixedly mounted on the deflection shaft. The piston rod end of the first cylinder is hinged to the connecting arm. By extending and retracting the piston rod end of the first cylinder, the deflection shaft and the deflection arm are driven to deflect around the axis of the deflection shaft. A torque arm is fixedly connected to the torque shaft, and a guide groove is provided on the torque arm. A pin is provided on the piston rod end of the first cylinder, and the pin is embedded in the guide groove and slides in cooperation with the guide groove.

[0012] Furthermore, a guide roller is rotatably installed at the position furthest from the axis of the lower pressure roller on the scraper. The guide roller abuts against one side of the sheet material. The scraper is rotatably installed with contact heads at positions on both sides of the sliding groove. A motor is also installed on the frame to drive the guide roller and the sheet material to rotate at the same linear speed.

[0013] Furthermore, a guide roller is rotatably mounted on the frame, located on one side of the lower pressure roller, and is used to guide the sheet material.

[0014] The beneficial effects of this application are as follows: 1. This device achieves instantaneous switching between the cutting edge state and the width adjustment state through a state linkage switching mechanism between the cutter and the support roller (driven by the first cylinder to rotate the deflection shaft, which in turn drives the torque shaft to rotate via the torque arm). During width adjustment, as the cutter switches to the retracted state, the support roller simultaneously retracts to the first state (completely hidden in the sliding groove), completely eliminating lateral sliding friction between the cutter and the sheet surface, thus fundamentally preventing the risk of scratches or curling of the sheet. Therefore, sheet width adjustment does not require interruption of the upstream calendering supply and downstream conveying process, achieving "zero downtime" specification switching and significantly shortening production line changeover auxiliary time. 2. By setting up the contact head, the electromagnet applies a strong magnetic repulsion force at the moment of circuit breaking to target the microscopic adhesion that may still remain after compensation. This causes the contact head to pop out at high speed in the radial direction, applying an instantaneous expansion impact to the cutting interface and forcibly separating the cut and uncut areas. This ensures that defective products are completely blocked from downstream processes, minimizing the impact of scrap rate on the continuity of the production line. 3. By using the second cylinder, the controller drives the piston rod of the second cylinder to extend precisely at the moment the circuit break signal is detected, dynamically increasing the cutting angle and vertical load of the cutter. This actively compensates for the shearing force attenuation caused by the dulling of the cutting edge without stopping the machine, effectively delaying the tool replacement cycle and reducing consumable costs. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is an overall schematic diagram according to one embodiment of the present application; Figure 2 yes Figure 1 A side sectional view of the embodiment; Figure 3 yes Figure 1 The installation diagram of the deflection arm in the embodiment is shown below; Figure 4 yes Figure 3 A magnified view of a portion of the image; Figure 5 yes Figure 1 The installation diagram of the abutment block in the embodiment is shown below; Figure 6 yes Figure 1 The embodiment shows a schematic diagram of the structure and installation of the abutment block; Figure 7 yes Figure 1 The embodiment shows a schematic diagram of the change of the cutter from the retracted state to the slicing state. Figure 8 yes Figure 1 A cross-sectional structural diagram of the abutment wheel in the embodiment.

[0018] Figure label: 10. Frame; 11. Upper pressure roller; 12. Lower pressure roller; 13. Controller; 14. Scraper; 15. Edge trimming assembly; 16. Guide roller; 17. First cylinder; 18. Deflection shaft; 19. Connecting arm; 20. Deflection arm; 21. Double-acting lead screw one; 22. Guide block; 23. Cutter; 24. Second cylinder; 25. Fork frame; 26. Guide roller; 27. Sliding groove; 28. Abutment block; 29. ​​Double-acting lead screw two; 30. Torque shaft; 31. Torque arm; 32. Guide groove; 33. Pin; 34. Deflection frame; 35. Abutment wheel; 36. Blade groove; 37. Abutment head; 38. Contact point; 39. Spring; 40. Mounting groove; 41. Electromagnet. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figure 1-8 An online control device for cutting the sheet width includes a frame 10, a calendering assembly, and a trimming assembly. The calendering assembly includes an upper pressure roller 11 and a lower pressure roller 12 rotatably mounted on the frame 10. The upper pressure roller 11 and lower pressure roller 12 are spaced apart and parallel to each other. In this embodiment, the upper pressure roller 11 and lower pressure roller 12 are distributed vertically, forming a space between them for calendering the sheet material. The specific structure can be referenced from existing roll calenders. The rubber sheet material moves forward after calendering. The trimming mechanism is located on the front side of the lower pressure roller 12 and is used to trim the calendered rubber sheet material, cutting both sides of the sheet material to precisely control the finished product width.

[0025] The edge-cutting mechanism includes a scraper 14 fixed to the frame 10 and abutting against the front side of the lower pressure roller 12. The edge of the scraper 14 is tightly fitted to the surface of the lower pressure roller 12, and the scraper structure peels the calendered rubber sheet from the lower pressure roller 12. The surface of the scraper 14 is coated with an anti-stick coating to prevent rubber from sticking. A guide roller 16 is also provided on the frame 10 at the lower end of the front side of the lower pressure roller 12. The guide roller guides the peeled sheet and the cut edge strips and simultaneously conveys them to the next process. All of the above rollers are driven by a power unit, and the linear speed is matched with the sheet conveying speed.

[0026] To address the challenge of online control of sheet thickness, an online control device for sheet width cutting is proposed. A deflection shaft 18, located in front of the lower pressure roller 12, is rotatably mounted on the frame 10. Two deflection arms 20 slide on the deflection shaft 18, extending radially along the shaft. These arms can rotate with the shaft to achieve angular deflection and slide axially. A cutter 23 is mounted on each deflection arm 20 to trim the rubber sheet. The sheet width is adjusted by changing the distance between the two cutters 23. Specifically, a guide block 22 rotatably mounts on a guide block 22, limiting the deflection arms 20 in the axial direction of the deflection shaft 18 and preventing obstruction of their rotation around the axis of the deflection shaft 18. A bidirectional lead screw 21 is also rotatably mounted on the frame 10, threadedly connected to the two guide blocks 22. Two guide blocks 22 are located symmetrically on both sides of the bidirectional lead screw 21, and the threads of the two guide blocks 22 have opposite directions. The bidirectional lead screw 21 and the two guide blocks 22 form threaded pairs, and the threads at the two locations have opposite directions. By driving the bidirectional lead screw 21 to rotate through a drive motor, the two deflection arms 20 can move towards or away from each other along the deflection axis, thereby precisely adjusting the cutter spacing, i.e., the sheet width. It should be noted that a drive unit, which can be a motor, is installed on the frame 10 to drive the bidirectional lead screw 21 to rotate.

[0027] A first cylinder 17 is mounted on the frame 10 via a pin. The piston rod of the first cylinder 17 is hinged to a connecting arm 19 fixed to a deflection shaft 18. The extension and retraction of the piston rod of the first cylinder 17 drives the deflection shaft 18 to rotate. The rotation of the deflection shaft 18 causes the cutter 23 to have two states: a cutting state and a retracted state. In the cutting state, the cutter 23 approaches the lower pressure roller 12 to cut the sheet material. In the retracted state, the cutter 23 moves away from the lower pressure roller 12, detaches from the sheet material, and ceases cutting.

[0028] A sliding groove 27, with an opening on the side away from the lower pressure roller 12, is provided on the scraper 14. Two abutment blocks 28 are slidably disposed within the sliding groove 27. When the cutter 23 is in the cutting edge state, the abutment blocks 28 abut against one side of the sheet material, supporting the cutting position and ensuring complete cut. The two abutment blocks 28 respectively abut against the cutting positions of the two cutters 23. The surface of the scraper 14 has an anti-stick material to prevent the rubber sheet material from sticking together.

[0029] A deflector frame 34 is rotatably mounted on the abutment block 28, and abutment wheel 35 is rotatably mounted on the deflector frame 34. The rotation of the deflector frame 34 drives the abutment wheel 35 to deflect, resulting in a first state where the abutment wheel 35 is completely within the sliding groove 27, and a second state where the cutting groove 36 protrudes from the first cylinder 17 to abut against the sheet material. Specifically, the deflector frame 34 has a cylindrical portion and a frame portion, the cylindrical portion rotating on the abutment block 28. The abutment wheel 35 rotates on the frame portion. By rotating the deflector frame 34 around the axis of the cylindrical portion, the abutment wheel 35 can be deflected, thereby switching the abutment wheel 35 between the first and second states.

[0030] The advantage is that when trimming, the support roller 35 is in the second state, while the cutter 23 is in the trimming state. At this time, the cutter 23 cooperates with the support roller 35, using the support roller 35 to support one side of the fabric while the cutter 23 trims the edge. When adjusting the sheet width, the support roller 35 is first adjusted to the first state, and the cutter 23 is adjusted to the retracted state. At this time, neither the support roller 35 nor the cutter 23 is in contact with the sheet material, preventing lateral scraping of the sheet surface by the cutter 23 and the support roller 35 during sheet width adjustment, which could cause damage or curling. The sheet width is adjusted by simultaneously adjusting the distance between the two cutters 23 and the positions of the two deflection shafts 18. This allows for online, non-stop control of the sheet width, ensuring the sheet material continues to be fed on the production line during width adjustment, thus avoiding impacting production line utilization.

[0031] In one embodiment, to prevent the cutting edge of the cutter 23 from gradually wearing down and becoming dull during prolonged operation, resulting in incomplete cutting, a contact portion 38 is fixedly provided on the support wheel 35. A cutting groove 36 is formed on the outer periphery of the contact portion 38, and the cutting edge of the cutter 23 engages with the cutting groove 36. When the cutter 23 can completely cut the sheet material, the cutting edge of the cutter 23 will contact the contact portion 38 and be energized. When the cut is incomplete, there will be no contact between the contact portion 38 and the cutter 23, and no energization will occur. A second cylinder 24 is fixedly mounted on the deflection arm 20. A fork-shaped frame 25 for mounting the cutter 23 is fixedly connected to the piston rod end of the second cylinder 24. The fork-shaped frame 25 has a fork-shaped structure, and the cutter 23 is rotatably mounted on the fork-shaped frame 25. When the abutment wheel 35 is in the second state and the cutter 23 is in the cutting state, if the contact part 38 and the cutter 23 are energized, the piston rod end of the second cylinder 24 is extended, thereby driving the cutter 23 to further increase the cutting force and ensure the cutting effect.

[0032] In the above embodiments, if incomplete cutting occurs, the incompletely cut portion continuing to be transported to the downstream production line will affect the overall efficiency of the production line. Therefore, the following solution is adopted. Multiple sets of circumferentially distributed mounting grooves 40 are formed on the outer wall of the bushing 35. A contact head 37 is slidably disposed within the mounting groove 40. One end of the contact head 37 protrudes from the mounting groove 40 and slides radially along the bushing 35, thereby adjusting the size of the portion protruding from the mounting groove 40. An electromagnet 41 is fixedly disposed within the bushing 35. A magnetic head cooperating with the electromagnet 41 is fixedly disposed on the mounting groove 40. When the electromagnet 41 is energized, it generates a magnetic repulsive force on the magnetic head. A spring 39 is connected between the contact head 37 and the bushing 35. Both ends of the spring 39 are fixedly connected to the contact head 37 and the bushing 35, used to drive the contact head 37 to reset. When both ends of the spring 39 are in a state of no force, the contact head 37 protrudes from the mounting groove 40, and at this time, the spring 39 is at its shortest length. When the abutment wheel 35 is in the second state and the cutter 23 is in the cutting state, if the contact part 38 is in contact with the cutter 23, the electromagnet 41 is not energized. At this time, under the action of the contact head 37, a slight impact is generated on both sides of the sheet material cutting position to prevent adhesion at the cutting point. When the circuit between the contact part 38 and the cutter 23 is broken, the electromagnet 41 is instantly energized, and under the action of the spring 39, the contact head 37 is quickly ejected, spreading the two sides of the sheet material cutting position apart, helping to completely separate the two sides of the cutting position, preventing the uncut part from continuing to the downstream production line and affecting the overall efficiency of the production line. It should be noted that the abutment block 28 realizes external signal and energy transmission through an electric slip ring. Both the cutter 23 and the blade groove 36 are made of conductive material, preferably a hard conductive alloy. In one embodiment, a positive electrode can be provided on the deflection arm 20 and a negative electrode can be provided on the deflection shaft 18. When the cutting edge of the cutter 23 contacts the cutting groove 36, the two electrodes are connected. When the cutting groove 36 disengages from the cutter 23, the two electrodes are disconnected. By detecting whether the two electrodes are connected, it can be detected whether the cutter 23 is in contact with the cutting groove 36. It can be understood that whenever the cutting groove 36 contacts the contact part 38, the sheet material is completely cut. The electrodes on the cutter 23 and the deflection arm 20 can also be electrically connected through an electric slip ring to ensure reliable circuit detection during rotation.

[0033] In one embodiment, a second bidirectional lead screw 29 is rotatably mounted inside the first cylinder 17. The second bidirectional lead screw 29 passes through and is threadedly connected to two deflection shafts 18 within the first cylinder 17, with the threads of the two deflection shafts 18 rotating in opposite directions. Thus, rotating the second bidirectional lead screw 29 allows the abutment block 28 to move with the cutter 23. The second bidirectional lead screw 29 has the same pitch as the first bidirectional lead screw 21. The first bidirectional lead screw 21 and the second bidirectional lead screw 29 are connected by a chain drive and rotate synchronously via a motor, ensuring that the abutment block 28 is always accurately positioned at the corresponding cutting position of the cutter 23.

[0034] In one embodiment, to achieve the switching of the abutment wheel 35 between a first state and a second state, a torque shaft 30 is rotatably disposed within the first cylinder 17. The torque shaft 30 passes through the abutment block 28 and the cylindrical portion of the deflection frame 34. The cylindrical portion of the deflection frame 34 is splinedly connected to the torque shaft 30, thereby allowing the deflection frame 34 to slide freely along the axis of the torque shaft 30 and for torque transmission between the torque shaft 30 and the deflection frame 34. Rotation of the torque shaft 30 causes the deflection frame 34 to rotate, which in turn causes the abutment wheel 35 to switch between the first and second states. The torque shaft 30 not only achieves the switching of the state of the abutment wheel 35 but also provides guidance for the abutment block 28, improving the smoothness of movement.

[0035] When the cutter 23 is in the cutting state, the abutment wheel 35 needs to be in the first state simultaneously; when the cutter 23 is retracted, the abutment wheel 35 also needs to switch to the second state simultaneously. A linkage structure is set between the cutter 23 and the deflection shaft 18 to ensure the synchronization of state switching, thereby improving the overall versatility and maintainability of the device. Specifically, a torque arm 31 is fixedly set on the torque shaft 30, and the torque arm 31 has a guide groove 32. A pin 33 is set at the piston rod end of the first cylinder 17, and the pin 33 is embedded in the guide groove 32 and slides freely. In this way, when the first cylinder 17 or the piston rod end extends and drives the cutter 23 to adjust to the cutting state, the torque shaft 30 also rotates under the drive of the torque arm 31, and drives the abutment wheel 35 to move to the first state, ensuring consistency and reliability of action.

[0036] Two guide rollers 26 are rotatably mounted on the scraper 14. After the sheet is separated, it is guided by the guide rollers 26. The surface of the guide rollers 26 is coated with polytetrafluoroethylene, which has an extremely low coefficient of friction, making it difficult for rubber materials to stick to them, thus ensuring the high efficiency of the material peeling process. It should be noted that the two guide rollers 26 can achieve different rotations through pulleys, and by connecting to a motor, the guide rollers 26 can rotate at the same linear speed during the sheet conveying process, ensuring smooth sheet conveying. In addition, guide rollers located on both sides of the sliding groove 27 are also rotatably mounted on the scraper 14. The guide rollers can prevent one side from scraping against the opening side of the sliding groove 27 due to slight vibration of the sheet.

[0037] The frame 10 is equipped with a controller 13, which is connected to the drive motor, the first cylinder 17, the second cylinder 24, the electromagnet 41 and the detection circuit signal. The controller controls the action sequence of each actuator according to the preset program to realize online automatic adjustment of the output width and real-time monitoring and compensation of the cutting status.

[0038] Working or installation process: During edge trimming, the rubber sheet is rolled by the upper pressure roller 11 and the lower pressure roller 12. When passing through the scraper 14, it separates from the surface of the lower pressure roller 12. Then, it is trimmed by two cutters 23. During this process, the abutment roller 35 is in the second state, providing stable support for the edge trimming of the cutter 23. During this process, if the cutter 23 is worn and does not completely cut, the cutting groove 36 and the contact part 38 are disconnected, and the signal is transmitted to the controller 13. The controller 13 controls the piston rod end of the second cylinder 24 to extend, increasing the cutting force. During this process, the abutment head 37 generates a slight impact on both sides of the cutting position of the sheet to prevent adhesion at the cut.

[0039] When an uncut section occurs, the electromagnet 41 generates a magnetic repulsive force, which in turn causes the contact head 37 to pop out quickly, spreading the two sides of the sheet material cutting position apart and helping to completely separate the two sides of the cutting position, preventing the uncut part from continuing into the downstream production line and affecting the overall efficiency of the production line.

[0040] When the sheet width needs to be adjusted online, the first cylinder 17 is retracted, which in turn moves the deflection arm 20 to the retracted state. At this time, under the action of the torque arm 31, the abutment wheel 35 is adjusted to the first state, and both the abutment wheel 35 and the cutter 23 are disengaged from the sheet material. The sheet material can continue to be conveyed without pausing the entire production line. In the subsequent slitting process, the uncut portion can be recovered. When the motor drives the bidirectional lead screw 29 and the bidirectional lead screw 21 to rotate, the abutment block 28 and the cutter 23 move synchronously to adjust the cutting width. After completion, the cutter 23 can be adjusted to the cutting state and the abutment wheel 35 can be adjusted to the second state to continue cutting.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An online control device for cutting sheet width, characterized in that: include: A frame (10) is provided, on which a calendering assembly and a trimming assembly are mounted; The calendering assembly includes an upper pressure roller (11) and a lower pressure roller (12). The upper pressure roller (11) and the lower pressure roller (12) are spaced apart on the frame (10) and parallel to each other. There is a calendering space between the upper pressure roller (11) and the lower pressure roller (12). The edge-cutting component includes: A deflection shaft (18) is rotatably mounted on the frame (10). Two sets of deflection arms (20) are slidably mounted on the deflection shaft (18). A cutter (23) is mounted on the deflection arm (20). A bidirectional lead screw (21) is also rotatably mounted on the frame (10). A guide block (22) is rotatably mounted on the deflection arm (20). The bidirectional lead screw (21) is threadedly engaged with the guide block (22). The threads of the two guide blocks (22) are in opposite directions. A scraper (14) is fixedly installed on the frame (10) on one side of the lower pressure roller (12) and in contact with the lower pressure roller (12). A sliding groove (27) extending along the axial direction of the lower pressure roller (12) is provided on the scraper (14). Two abutting mechanisms are slidably installed in the sliding groove (27). The abutting mechanism has two states. In the first state, it is located in the sliding groove (27). In the second state, it protrudes from the sliding groove (27) and abuts against the cutter (23). The two abutment mechanisms are respectively opposite to the two cutters (23).

2. The online control cutter for sheet width according to claim 1, characterized in that: The abutment structure includes: an abutment block (28) slidably disposed in a sliding groove (27), a deflector frame (34) rotatably disposed in the abutment block (28), an abutment wheel (35) rotatably mounted on the deflector frame (34), a blade groove (36) disposed on the abutment wheel (35), the blade groove (36) cooperating with the cutter (23) to cut the edge, and abutment heads (37) located on both sides of the blade groove (36) disposed on the outer wall of the abutment wheel (35), the abutment heads (37) being evenly distributed circumferentially on the outer wall of the abutment wheel (35), and the abutment wheel (35) being deflected by the rotation of the deflector frame (34), so that the abutment wheel (35) has a state of being located in the sliding groove (27) and a state of protruding from the sliding groove (27).

3. The online control cutter for sheet width according to claim 2, characterized in that: A contact part (38) is installed on the abutment wheel (35). A cutting groove (36) is formed on the outer wall of the contact part (38). A plurality of mounting grooves (40) are evenly opened on the outer wall of the abutment wheel (35). The contact head (37) is slidably disposed in the mounting groove (40). One end of the contact head (37) protrudes from the mounting groove (40) and slides radially along the abutment wheel (35), thereby adjusting the size of the part protruding from the mounting groove (40). An electromagnet (41) is fixedly disposed in the abutment wheel (35). A magnetic head that cooperates with the electromagnet (41) is fixedly disposed on the mounting groove (40). When the electromagnet (41) is energized, it generates a magnetic repulsion force on the magnetic head. A spring (39) is connected between the contact head (37) and the abutment wheel (35).

4. The online control cutter for sheet width according to claim 3, characterized in that: A second bidirectional lead screw (29) is rotatably disposed in the sliding groove (27). The second bidirectional lead screw (29) is threadedly connected to two abutment blocks (28). The threads of the two abutment blocks (28) are opposite in direction. The pitch of the sliding groove (27) is the same as that of the first bidirectional lead screw (21). A driving component is fixedly disposed on the frame (10). The driving component is used to drive the deflection shaft (18) and the second bidirectional lead screw (29) to rotate synchronously.

5. The online control cutter for sheet width according to claim 4, characterized in that: A torque shaft (30) is rotatably disposed in the sliding groove (27), the torque shaft (30) passes through the abutment block (28), and the deflection frame (34) has a sleeve portion sleeved on the torque shaft (30), the sleeve portion slidingly engaging with the torque shaft (30).

6. The online control cutter for sheet width according to claim 5, characterized in that: A second cylinder (24) is fixedly installed on the deflection arm (20), and a fork-shaped frame (25) is fixedly installed on the piston rod end of the second cylinder (24). The cutter (23) is rotatably mounted on the fork-shaped frame (25).

7. The online controlled sheet width cutting device according to claim 6, characterized in that: A first cylinder (17) is mounted on the frame (10) via a pin. A connecting arm (19) is fixedly mounted on the deflection shaft (18). The piston rod end of the first cylinder (17) is hinged to the connecting arm (19). By extending and retracting the piston rod end of the first cylinder (17), the deflection shaft (18) and the deflection arm (20) are driven to deflect around the axis of the deflection shaft (18). A torque arm (31) is fixedly connected to the torque shaft (30). A guide groove (32) is provided on the torque arm (31). A pin (33) is provided on the piston rod end of the first cylinder (17). The pin (33) is embedded in the guide groove (32) and slides and cooperates with the guide groove (32).

8. The online control cutter for sheet width according to claim 7, characterized in that: A guide roller (26) is rotatably arranged at the position furthest from the axis of the lower pressure roller (12) on the scraper (14). The guide roller (26) abuts against one side of the sheet material. The scraper (14) is rotatably arranged with contact heads (37) on both sides of the sliding groove (27). A motor is also provided on the frame (10). The motor is used to drive the guide roller (26) and the sheet material to rotate at the same linear speed.

9. The online control cutter for sheet width according to claim 8, characterized in that: A guide roller (16) is rotatably mounted on the frame (10). The guide roller (16) is located on one side of the lower pressure roller (12). The guide roller (16) is used to guide the sheet material.

Images