A calendering device with a flatness self-detection function

Abstract

The present invention belongs to the technical field of PVC film production, specifically a calendering device with a flatness self-detection function, including a support seat, a support frame fixedly installed on the surface of the support seat, a connection frame fixedly installed above the support frame, a mirror sensor arranged above the connection frame, a pointer rotatably installed inside the connection frame, movable blocks movably installed on both the upper and lower sides of the connection frame, a damping rod fixedly connected to the rear side of the movable block, an inner rod fixedly installed inside the damping rod, a third connecting roller interference-connected to the outer side of the damping rod, a pressure roller arranged on the right side of the third connecting roller, and a first connecting roller arranged below the right side of the pressure roller. The device can detect the flatness in real time using the pointer and the mirror sensor when in use, and can perform segmented detection, and can also use the speed difference of different connecting rollers to realize the function of stretching the raw material while conveying the film raw material, so as to ensure that multiple films can be efficiently bonded.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC film production, and specifically relates to a calendering device with a self-detection function for flatness. Background Art

[0002] During the production of PVC films, it is necessary to extrude and stretch the rubber compound. Therefore, a calendering device is required. By pressing the rubber compound into the space between two adjacent rollers, the raw material can be stretched to form a film structure. During the calendering process, two or more films can also be laminated according to requirements. However, there are still some deficiencies in the existing calendering devices during use.

[0003] For example, a Chinese invention patent (publication number CN106976194A) discloses a calender for PVC film production. By rotating the handle B to rotate the screw, the lifting slider moves downward, thereby driving the left baffle and the right baffle to move downward, facilitating the adjustment of the gap between the left baffle and the right baffle and the roller, improving the blocking effect of the left baffle and the right baffle on the raw material mixture, and the operation is convenient and the use is flexible. By rotating the handle A to rotate the lead screw, the clockwise or counterclockwise rotation of the lead screw drives the left baffle and the right baffle to move synchronously in the same direction or synchronously in the opposite direction, which is beneficial to adjusting the distance between the left baffle and the right baffle. The adjustment is convenient and fast, and it can be applied to PVC film products with different specifications and widths, with wide applicability. In summary, the entire device has a simple structure, convenient operation, and flexible use, and can effectively solve the problem of the arbitrary extension of the raw material mixture during calendering, and can also be applied to PVC film products with different specifications and widths.

[0004] Although the above device can be adapted to produce PVC films of different specifications during use, during the lamination of multiple films by the existing calendering device, it is impossible to stretch the corresponding film forward according to requirements, making it difficult to pre-stretch the film before calendering, and it is also impossible to adjust the degree of stretching. Moreover, the existing calendering device cannot automatically detect the flatness after calendering the film. Usually, subsequent manual detection is required, and it cannot be detected during production. If the detection is unqualified after production, it will cause excessive waste of raw materials and cannot be detected during the production process. Summary of the Invention

[0005] In view of the problems existing in the existing PVC film calendering device, the present invention is proposed.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A calendering device with a flatness self-detection function, including a support base, on the surface of the support base is fixedly installed a support frame, above the support frame is fixedly installed a connection frame, above the connection frame is provided a mirror sensor, inside the upper part of the connection frame is rotatably installed a pointer, on the upper and lower sides of the connection frame are both movably installed movable blocks, the rear side of the movable block is fixedly connected to a damping rod, inside the damping rod is fixedly installed an inner rod, the outer side of the damping rod is interference-connected with a third connecting roller, on the right side of the third connecting roller is provided a pressing roller, below the right side of the pressing roller is provided a first connecting roller, above the first connecting roller is installed a second connecting roller, on the surface of the first connecting roller is fixedly installed a first synchronous pulley, on the surface of the second connecting roller is fixedly installed a second synchronous pulley, inside the second synchronous pulley is slidably installed a sliding rod, the front end of the sliding rod is fixedly connected to a lapping plate, the first synchronous pulley is connected to the lapping plate through a synchronous belt, inside the connection frame is slidably installed a pressing block, and on the surface of the pressing block is fixedly connected a traction steel rope.

[0007] As a preferred scheme of the calendering device with a flatness self-detection function described in the present invention, wherein: The support base, the support frame and the connection frame are integrally formed, the pressing block is connected to the connection frame through a second spring, the pressing block and the second spring form a pressing structure for the movable block, and the second springs are symmetrically distributed on the left and right sides of the traction steel rope.

[0008] As a preferred scheme of the calendering device with a flatness self-detection function described in the present invention, wherein: Inside the connection frame is rotatably connected a second gear, above the second gear is meshed and connected a first gear, on the surface of the first gear is fixedly provided a fixed shaft, on the outer side of the fixed shaft is fixedly connected a damping block, the connection mode between the fixed shaft and the pointer is a rotational connection, the damping blocks are equally angularly distributed on the outer side of the fixed shaft, in the middle of the second gear is fixedly provided a connection shaft, and the top end of the traction steel rope is bolted to the surface of the connection shaft.

[0009] As a preferred scheme of the calendering device with a flatness self-detection function described in the present invention, wherein: On the surface of the pointer are equally angularly provided mounting grooves, the positions of the mounting grooves correspond to the positions of the damping blocks, the pointer forms a first clamping structure with the fixed shaft through the damping blocks and the mounting grooves, and the material of the damping blocks is rubber material.

[0010] As a preferred scheme of the calendering device with a flatness self-detection function described in the present invention, wherein: The second connecting roller forms a synchronous rotation structure with the first connecting roller through the first synchronous pulley, the lapping plate and the synchronous belt, the lapping plate forms a sliding structure with the second synchronous pulley through the sliding rod, and the sliding rod and the lapping plate are equally angularly distributed on the outer side of the second synchronous pulley.

[0011] As a preferred solution of a calendering device with a flatness self-detection function according to the present invention, the following is provided: A connection cover is rotatably installed on the outer side of the second synchronous pulley. A convex rod is fixedly installed on the surface of the sliding rod. A guiding frame is arranged on the outer side of the convex rod. The guiding frame and the connection cover are fixedly connected. The sliding rod and the overlapping plate form a synchronous telescopic structure with the second synchronous pulley through the convex rod, the guiding frame and the connection cover. A fixing block is fixedly installed on the surface of the second synchronous pulley. A docking block is slidably installed inside the fixing block. A docking groove for docking with the docking block is formed inside the connection cover. The docking block is connected to the fixing block through a first spring.

[0012] As a preferred solution of a calendering device with a flatness self-detection function according to the present invention, the following is provided: The inner wall of the docking groove fits with the outer wall of the docking block. The docking grooves are equally angularly distributed on the connection cover. The connection cover forms a second clamping structure with the fixing block through the docking block and the docking groove. The longitudinal cross-sectional shape of the docking block is triangular.

[0013] As a preferred solution of a calendering device with a flatness self-detection function according to the present invention, the following is provided: A scroll spring is sleeved on the outer side of the connecting shaft. The head and tail ends of the scroll spring are respectively connected to the connecting frame and the connecting shaft. The second gear forms an elastic structure with the connecting frame through the scroll spring.

[0014] As a preferred solution of a calendering device with a flatness self-detection function according to the present invention, the following is provided: The connecting shaft forms a first rotating structure with the connecting frame through a traction steel rope and a pressing block. The pointer forms a second rotating structure with the connecting frame through a first gear and a second gear. The position of the pointer corresponds to the position of the mirror sensor. The width of the pointer decreases from top to bottom.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Through the lap plates evenly distributed at equal angles on the outer side of the second synchronous pulley, in cooperation with the guiding frame inside the device, the device can adjust the degree of expansion of the lap plates, indirectly increasing the diameter of the second synchronous pulley. Furthermore, in cooperation with the first synchronous pulley with a fixed diameter and the synchronous belt, the device can achieve the function of adjusting the rotational speed difference between the first connecting roller and the second connecting roller. At this time, the device can make the rotational speed of the first connecting roller below greater than that of the second connecting roller, so that the first connecting roller can pre-stretch the film raw material before calendering the film raw material. By using the butt blocks and butt grooves evenly distributed at equal angles inside the device, the device can adjust and fix the degree of expansion of the second synchronous pulley, making the rotational speed difference between the first connecting roller and the second connecting roller fixed after adjustment, so as to adjust the degree of pre-stretching of the film raw material during subsequent use, enabling the two films to be fully adhered, solving the defects in the prior art that it is difficult to pre-stretch the film before calendering and the degree of stretching cannot be adjusted.

[0017] 2. Through the mirror sensor, pointer, first gear, second gear, and traction steel rope on the device, when the mirror sensor on the device is used in cooperation with the photoelectric sensor, when the photoelectric sensor receives it, when the calendered film raw material undulates, the corresponding third connecting roller can be lifted or lowered, causing a height difference between the movable block and the pressing block. When there is a height difference in the pressing block, the traction steel rope pulls the second gear to rotate, driving the first gear with fewer teeth to rotate, enabling the pointer to rotate. Using the tooth number difference between the first gear and the second gear to achieve the function of amplifying the movement amplitude, even if the traction steel rope is pulled slightly, the pointer can still rotate. When the pointer rotates, the photoelectric sensor no longer irradiates the pointer, and the mirror sensor reflects the laser to the photoelectric sensor. At this time, a signal is generated, and it can be known that there is an undulation error on the film surface, enabling the device to automatically detect the flatness of the PVC film during calendering, solving the defect that the existing calendering device cannot automatically detect the flatness after calendering the film during use. This device has the advantage of stronger functionality.

[0018] 3. By setting a pointer with an increasing width from top to bottom, the device can adjust the height of the photoelectric sensor corresponding to the photoelectric sensor, enabling the device to adjust the error tolerance range during automatic flatness detection. The higher the height of the photoelectric sensor corresponding to the photoelectric sensor, the smaller the error tolerance range during automatic flatness detection, and vice versa. This device can not only adjust the accuracy of flatness detection but also adjust the degree of pre-stretching before calendering. This device has the advantages of stronger functionality and higher adjustability.

[0019] 4. Through the set segmented connecting roller, the device can detect different areas of the film material. Compared with detecting the whole through an integral connecting roller, the device with a segmented connecting roller can reduce the weight of the roller body, so that the device can be more stably supported when encountering undulating positions, improving the accuracy of the device in detecting flatness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is the overall structural schematic diagram of a calendering device with a flatness self-detection function according to the present invention;

[0022] Figure 2 is Figure 1 the structural schematic diagram at position A in

[0023] Figure 3 is the structural schematic diagram of the connection between the support frame and the connection frame of the present invention;

[0024] Figure 4 is Figure 3 the structural schematic diagram at position B in

[0025] Figure 5 is the front cross-sectional structural schematic diagram of the guide frame of the present invention;

[0026] Figure 6 is Figure 5 the structural schematic diagram at position C in

[0027] Figure 7 is the front cross-sectional structural schematic diagram of the connection frame of the present invention;

[0028] Figure 8 is Figure 7 the structural schematic diagram at position D in

[0029] Figure 9 is the structural schematic diagram of the connection between the third connecting roller and the damping rod of the present invention;

[0030] Figure 10 is the structural schematic diagram of the connection between the damping rod and the inner rod of the present invention.

[0031] Reference numerals in the figure: 1, support base; 2, support frame; 3, connecting frame; 4, pointer; 5, pressure roller; 6, first connecting roller; 7, second connecting roller; 8, first synchronous pulley; 9, second synchronous pulley; 10, slide bar; 11, lapping plate; 12, convex rod; 13, guiding frame; 14, connecting cover; 15, fixed block; 16, docking block; 17, first spring; 18, docking groove; 19, synchronous belt; 20, movable block; 21, scroll spring; 22, connecting shaft; 23, towing steel rope; 24, second spring; 25, pressing block; 26, third connecting roller; 27, damping rod; 28, inner rod; 29, first gear; 30, fixed shaft; 31, damping block; 32, mounting groove; 33, mirror sensor; 34, second gear. Detailed implementation manners

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0034] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0035] Embodiment

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention with reference to the accompanying drawings.

[0037] As Figures 1-10As shown in the figure, a calendering device with a flatness self-detection function includes a support base 1. A support frame 2 is fixedly installed on the surface of the support base 1. Above the support frame 2, a connection frame 3 is fixedly installed. Above the connection frame 3, a mirror sensor 33 is provided. Inside the upper part of the connection frame 3, a pointer 4 is rotatably installed. The mirror sensor 33 is used in cooperation with a photoelectric sensor in front of the pointer 4. The device can determine whether there is light reflection through the photoelectric sensor corresponding to the mirror sensor 33, and determine whether the pointer 4 is deflected. On both the upper and lower sides of the connection frame 3, movable blocks 20 are movably installed. A damping rod 27 is fixedly connected to the rear side of the movable block 20. An inner rod 28 is fixedly installed inside the damping rod 27. A third connecting roller 26 is connected to the outside of the damping rod 27 by interference fit. A calender roll 5 is provided on the right side of the third connecting roller 26. The calender roll 5 is used to calender the film material into a thin film material. Below the right side of the calender roll 5, a first connecting roller 6 is provided. Above the first connecting roller 6, a second connecting roller 7 is installed. The first connecting roller 6 and the second connecting roller 7 are used to guide the film material. A first synchronous pulley 8 is fixedly installed on the surface of the first connecting roller 6. A second synchronous pulley 9 is fixedly installed on the surface of the second connecting roller 7. A slide bar 10 is slidably installed inside the second synchronous pulley 9. The front end of the slide bar 10 is fixedly connected to a lapping plate 11. The first synchronous pulley 8 is connected to the lapping plate 11 through a synchronous belt 19. The diameter difference between the first synchronous pulley 8 and the second synchronous pulley 9 can cause an angular velocity difference between the first connecting roller 6 and the second connecting roller 7 through the synchronous belt 19, so that the device can pre-stretch the film material before calendering the film material. A pressing block 25 is slidably installed inside the connection frame 3. A traction steel rope 23 is fixedly connected to the surface of the pressing block 25. Through the action of the traction steel rope 23 on the device on the pointer 4 and the pressing block 25, when the thin film material fluctuates, the third connecting roller 26 also fluctuates accordingly. When the third connecting roller 26 fluctuates, it can act on the pointer 4 through the traction steel rope 23, so that the device can automatically detect the flatness of the thin film material through the pointer 4.

[0038] In this example, the support base 1, the support frame 2 and the connection frame 3 are integrally formed. The pressing block 25 is connected to the connection frame 3 through a second spring 24. The pressing block 25 and the second spring 24 form a pressing structure for the movable block 20. The second springs 24 are symmetrically distributed on the left and right sides of the traction steel rope 23. Through the second spring 24 on the device, the pressing block 25 presses the movable block 20, so as to detect the flatness of the thin film material by observing the fluctuations of two adjacent movable blocks 20 subsequently.

[0039] In this example, a second gear 34 is rotatably connected inside the connection box 3. Above the second gear 34, a first gear 29 is meshed and connected. A fixed shaft 30 is fixedly arranged on the surface of the first gear 29. A damping block 31 is fixedly connected to the outside of the fixed shaft 30. The connection between the fixed shaft 30 and the pointer 4 is a rotational connection. The damping blocks 31 are evenly distributed at equal angles on the outside of the fixed shaft 30. A connection shaft 22 is fixedly arranged in the middle of the second gear 34. The top end of the traction steel cable 23 is bolted to the surface of the connection shaft 22. The damping block 31 can ensure that after the pointer 4 rotates to a proper position, it can be engaged with the fixed shaft 30, so that the initial position of the pointer 4 is adjusted, which is convenient for subsequent resetting of the pointer 4.

[0040] In this example, mounting grooves 32 are evenly opened on the surface of the pointer 4 at equal angles. The positions of the mounting grooves 32 correspond to the positions of the damping blocks 31. The pointer 4 and the fixed shaft 30 form a first engaging structure through the damping blocks 31 and the mounting grooves 32. The damping blocks 31 are made of rubber material. Through the mounting grooves 32 on the device and the rubber damping blocks 31, the damping blocks 31 can be extruded to adjust the angle of the pointer 4 for subsequent calibration of the pointer 4.

[0041] In this example, the second connecting roller 7 and the first connecting roller 6 form a synchronous rotation structure through the first synchronous pulley 8, the overlapping plate 11 and the synchronous belt 19. The overlapping plate 11 and the second synchronous pulley 9 form a sliding structure through the sliding rod 10. The sliding rod 10 and the overlapping plate 11 are evenly distributed at equal angles on the outside of the second synchronous pulley 9. The evenly distributed overlapping plates 11 and the slidably mounted sliding rod 10 enable the device to indirectly adjust the diameter of the second synchronous pulley 9, so that the device can adjust the rotation speed ratio of the overall first synchronous pulley 8 and the second synchronous pulley 9 to change the pre-stretching degree of the film material subsequently.

[0042] In this example, a connection cover 14 is rotatably installed on the outer side of the second synchronous pulley 9. A convex rod 12 is fixedly installed on the surface of the sliding rod 10. A guide frame 13 is arranged outside the convex rod 12. The guide frame 13 and the connection cover 14 are fixedly connected. The sliding rod 10 and the overlapping plate 11 are connected by the convex rod 12. By rotating the connection cover 14 on the device, the guide frame 13 acts on the convex rod 12, so that the convex rod 12 drives the overlapping plate 11 to move outward. Furthermore, the device can synchronously contract or expand the overlapping plates 11 at multiple positions. The guide frame 13 and the connection cover 14 and the second synchronous pulley 9 form a synchronous telescopic structure. A fixed block 15 is fixedly installed on the surface of the second synchronous pulley 9. A docking block 16 is slidably installed inside the fixed block 15. A docking groove 18 for docking with the docking block 16 is opened inside the connection cover 14. The docking block 16 is connected to the fixed block 15 through a first spring 17. The first spring 17 enables the device to stably snap the docking block 16 inside the docking groove 18, so that the device can adjust and fix the initial position of the overlapping plate 11, and further adjust the diameter of the synchronous pulley composed of the second synchronous pulley 9 and the overlapping plate 11.

[0043] In this example, the inner wall of the docking groove 18 fits with the outer wall of the docking block 16. The docking grooves 18 are equiangularly distributed on the connection cover 14. The connection cover 14 and the fixed block 15 form a second snap structure through the docking block 16 and the docking groove 18. The longitudinal section of the docking block 16 is triangular. Through the second snap structure on the device, the connection cover 14 can be clamped after rotation. The docking block 16 with a triangular longitudinal section enables the docking block 16 to snap into the docking grooves 18 at other positions in the connection cover 14 when the connection cover 14 is subjected to a large torque.

[0044] In this example, a scroll spring 21 is sleeved outside the connecting shaft 22. The head and tail ends of the scroll spring 21 are respectively connected to the connecting frame 3 and the connecting shaft 22. The second gear 34 and the connecting frame 3 form an elastic structure through the scroll spring 21. Through the elastic structure on the device, the scroll spring 21 can act on the second gear 34, so that the second gear 34 can automatically reset after the flatness detection work is completed.

[0045] In this example, the connecting shaft 22 and the connecting frame 3 form a first rotating structure through the traction steel cable 23 and the pressing block 25. The pointer 4 and the connecting frame 3 form a second rotating structure through the first gear 29 and the second gear 34. The position of the pointer 4 corresponds to the position of the mirror sensor 33. The width of the pointer 4 decreases from top to bottom. The mirror sensor 33 can be used in cooperation with the photoelectric sensor. By changing the height of the photoelectric sensor corresponding to the mirror sensor 33 relative to the pointer 4, the higher the height of the photoelectric sensor, the smaller the angle the pointer 4 rotates, and the photoelectric sensor can receive the laser signal reflected by the mirror sensor 33, thereby changing the detection accuracy of the photoelectric sensor.

[0046] It should be noted that the present invention is a calendering device with a flatness self-detection function. First, as Figures 1-6 shown, during the use of the device, the supported seat 1, the support frame 2, and the connecting frame 3 support the calendered film material and simultaneously perform flatness testing. Before calendering, the device can bond multiple film materials through the first connecting roller 6 and the second connecting roller 7. During the bonding process, through the first synchronous wheel 8, the second synchronous wheel 9, and the overlapping plate 11 cooperating with the synchronous belt 19, a rotational speed difference can be generated between the first connecting roller 6 and the second connecting roller 7. At this time, the rotational speed of the first connecting roller 6 is slower, and the rotational speed of the second connecting roller 7 is faster. The second connecting roller 7 can pre-stretch the film material, enabling the device to perform pre-stretching treatment before calendering. It is also possible to rotate the connecting cover 14 outside the second synchronous wheel 9, so that the inner wall of the docking groove 18 in the connecting cover 14 presses against the outer wall of the docking block 16, thereby causing the docking block 16 to be compressed into the interior of the fixed block 15, and the first spring 17 is compressed until the docking block 16 snaps into the next docking groove 18, completing the adjustment and fixation work of the connecting cover 14 on the second synchronous wheel 9. During the fixation of the connecting cover 14, the convex rod 12 is limited by the guiding frame 13, causing the convex rod 12 to drive the sliding rod 10 to move. During the movement of the sliding rod 10, the overlapping plate 11 is driven to expand outward, so that the overlapping plate 11 can adjust the degree of outward expansion of the overlapping plate 11, and thereby indirectly change the diameter of the second synchronous wheel 9, enabling the device to adjust the rotational speed difference between the first connecting roller 6 and the second connecting roller 7. By changing the rotational speed difference between the first connecting roller 6 and the second connecting roller 7, the device can adjust the degree of pre-stretching of the film material;

[0047] As Figure 1 、 Figure 3 、 Figure 4 and Figures 7-10As shown, when the device is performing flatness testing, the corresponding number of third connecting rollers 26 are installed according to the width of the film. The interference-fitted third connecting rollers 26 and damping rods 27 enable the third connecting rollers 26 to remain stable after installation. The second spring 24 on the connecting frame 3 presses against the pressing block 25, and the pressing block 25 abuts against the movable block 20. The movable blocks 20 on the upper and lower sides of the connecting frame 3 clamp the film material through the third connecting rollers 26. When there are flatness defects in the film material, the third connecting rollers 26 move up and down, causing a change in the initial position of the traction steel cable 23. When the position of the traction steel cable 23 changes, the connecting shaft 22 and the second gear 34 rotate through the scroll spring 21, thereby causing the first gear 29 to rotate. The damping block 31 outside the fixed shaft 30 fixed on the surface of the first gear 29 abuts against the inner wall of the installation groove 32, driving the pointer 4 to rotate. Since the number of teeth of the second gear 34 is greater than that of the first gear 29, even if the traction steel cable 23 moves slightly, the second gear 34 can still rotate significantly, thereby realizing the function of increasing the movement amplitude of the pointer 4, and realizing the function of automatic deflection of the pointer 4 when the film surface fluctuates. Combining Figure 7 with the light spot on the surface of the pointer 4 in , the photoelectric sensors corresponding to the mirror sensor 33 are arranged directly in front of the pointer 4. Since the height of the pointer 4 increases from top to bottom, the higher the height of the photoelectric sensor corresponding to the mirror sensor 33, the higher the position of the light spot on the pointer 4. At this time, as long as the pointer 4 deflects slightly, the mirror sensor 33 can reflect the laser emitted by the photoelectric sensor to the photoelectric sensor, realizing the warning function. The lower the height of the photoelectric sensor corresponding to the mirror sensor 33, the lower the position of the light spot on the pointer 4, and the pointer 4 needs to deflect significantly for the mirror sensor 33 to reflect the laser emitted by the photoelectric sensor to the photoelectric sensor, thereby changing the accuracy during flatness detection.

[0048] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A calendering device with a flatness self-detection function, including a support base (1), Characterized in that: A support frame (2) is fixedly installed on the surface of the support base (1), a connection frame (3) is fixedly installed above the support frame (2), a mirror sensor (33) is arranged above the connection frame (3), a pointer (4) is rotatably installed inside the upper part of the connection frame (3), movable blocks (20) are movably installed on both the upper and lower sides of the connection frame (3), a damping rod (27) is fixedly connected to the rear side of the movable block (20), an inner rod (28) is fixedly installed inside the damping rod (27), a third connecting roller (26) is interference-connected to the outside of the damping rod (27), a pressing roller (5) is arranged on the right side of the third connecting roller (26), a first connecting roller (6) is arranged below the right side of the pressing roller (5), a second connecting roller (7) is installed above the first connecting roller (6), a first synchronous wheel (8) is fixedly installed on the surface of the first connecting roller (6), a second synchronous wheel (9) is fixedly installed on the surface of the second connecting roller (7), a sliding rod (10) is slidably installed inside the second synchronous wheel (9), a lapping plate (11) is fixedly connected to the front end of the sliding rod (10), the first synchronous wheel (8) is connected to the lapping plate (11) through a synchronous belt (19), a pressing block (25) is slidably installed inside the connection frame (3), and a traction steel cable (23) is fixedly connected to the surface of the pressing block (25); The support base (1), the support frame (2) and the connection frame (3) are integrally formed, the pressing block (25) is connected to the connection frame (3) through a second spring (24), the pressing block (25) and the second spring (24) form a pressing structure for the movable block (20), and the second springs (24) are symmetrically distributed on the left and right sides of the traction steel cable (23); A second gear (34) is rotatably connected inside the connection frame (3), a first gear (29) is meshed above the second gear (34), a fixed shaft (30) is fixedly arranged on the surface of the first gear (29), a damping block (31) is fixedly connected to the outside of the fixed shaft (30), the connection mode between the fixed shaft (30) and the pointer (4) is a rotational connection, the damping blocks (31) are equiangularly distributed on the outside of the fixed shaft (30), a connection shaft (22) is fixedly arranged in the middle of the second gear (34), and the top end of the traction steel cable (23) is bolted to the surface of the connection shaft (22); Installation grooves (32) are equiangularly formed on the surface of the pointer (4), the positions of the installation grooves (32) correspond to the positions of the damping blocks (31), and the pointer (4) forms a first clamping structure with the fixed shaft (30) through the damping blocks (31) and the installation grooves (32), and the material of the damping blocks (31) is rubber material; A scroll spring (21) is sleeved on the outside of the connection shaft (22), the head and tail ends of the scroll spring (21) are respectively connected to the connection frame (3) and the connection shaft (22), and the second gear (34) forms an elastic structure with the connection frame (3) through the scroll spring (21).

2. A calendering device with a flatness self-detection function according to claim 1, Characterized in that: The second connecting roller (7) and the first connecting roller (6) form a synchronous rotation structure through the first synchronous pulley (8), the lapping plate (11) and the synchronous belt (19). The lapping plate (11) and the second synchronous pulley (9) form a sliding structure through the slide bar (10). The slide bar (10) and the lapping plate (11) are equally angularly distributed outside the second synchronous pulley (9).

3. A calendering device with a flatness self-detection function according to claim 2, characterized in that: A connection cover (14) is rotatably installed outside the second synchronous pulley (9). A convex rod (12) is fixedly installed on the surface of the slide bar (10). A guide frame (13) is arranged outside the convex rod (12). The guide frame (13) and the connection cover (14) are fixedly connected. The slide bar (10) and the lapping plate (11) form a synchronous telescopic structure with the second synchronous pulley (9) through the convex rod (12), the guide frame (13) and the connection cover (14). A fixed block (15) is fixedly installed on the surface of the second synchronous pulley (9). A docking block (16) is slidably installed inside the fixed block (15). A docking groove (18) for docking with the docking block (16) is opened inside the connection cover (14). The docking block (16) is connected to the fixed block (15) through a first spring (17).

4. A calendering device with a flatness self-detection function according to claim 3, characterized in that: The inner wall of the docking groove (18) and the outer wall of the docking block (16) are mutually attached. The docking grooves (18) are equally angularly distributed on the connection cover (14). The connection cover (14) and the fixed block (15) form a second clamping structure through the docking block (16) and the docking groove (18). The longitudinal cross-sectional shape of the docking block (16) is triangular.

5. A calendering device with a flatness self-detection function according to claim 4, characterized in that: The connecting shaft (22) and the connecting frame (3) form a first rotation structure through the traction steel rope (23) and the pressing block (25). The pointer (4) and the connecting frame (3) form a second rotation structure through the first gear (29) and the second gear (34). The position of the pointer (4) corresponds to the position of the mirror sensor (33). The width of the pointer (4) decreases from top to bottom. The number of teeth of the first gear (29) is less than the number of teeth of the second gear (34).

Images