A long-axis transmission structure

Abstract

This invention discloses a long-axis conveying structure, including a conveying assembly for conveying thin-film materials. The conveying assembly includes at least two conveying rollers with parallel axes. At least one conveying roller is connected to a driving device, which drives the conveying roller to rotate around its axis. The roller surfaces of two adjacent conveying rollers cooperate to press and transport the material. Pressure applying elements are provided on both the feed and discharge sides of the conveying assembly, and these elements make pressure contact with the roller surfaces of their adjacent conveying rollers. This long-axis conveying structure reduces the gap variation between adjacent conveying rollers by applying pressure to the conveying rollers on both sides of the conveying assembly. This ensures that both sides of the film experience the same frictional force during conveying, thereby achieving stable material transport and extending the service life of the device.

Description

Technical Field

[0001] This invention relates to the field of transmission technology, and in particular to a long-axis transmission structure. Background Technology

[0002] When transporting thin-film materials, various long, strip-shaped transport rollers are commonly used. For example, Chinese invention patent CN202557855U discloses a film feeding and cutting device, including an active film feeding roller and a pressure roller cooperating with it, a passive film feeding roller and a pressure roller cooperating with it, and a rotatable film cutter positioned between the active and passive film feeding rollers. This film feeding and cutting device achieves film transport through the cooperating active and pressure rollers, as well as the cooperating passive and pressure rollers.

[0003] However, in the aforementioned film feeding device, the active film feeding roller, the passive film feeding roller (hereinafter referred to as "rollers"), and the pressure roller are all long strips. During use, the rollers and pressure rollers squeeze both sides of the film respectively. After long-term use, the rollers and pressure rollers are prone to deformation, which causes changes in the gap between the rollers and pressure rollers. During the conveying process, the pressure of the rollers and pressure rollers on different parts of the film is inconsistent, resulting in differences in the frictional force of the film conveyed at different points along the length of the film. Due to these differences, the conveying distance of the film is inconsistent, which affects the transmission quality and shortens the service life of the device.

[0004] Therefore, it is necessary to improve the thin-film transport structure in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a long-axis transmission structure that ensures transmission quality and extends service life.

[0006] To achieve the above-mentioned technical effects, the technical solution of the present invention is as follows: a long-axis transmission structure, comprising a transmission component for transmitting thin film materials, the transmission component comprising at least two transmission rollers, the axis lines of the transmission rollers being parallel; at least one transmission roller is connected to a driving device, the driving device driving the transmission roller to rotate around its axis line; the roller surfaces of two adjacent transmission rollers cooperate to press the material and rotate to transport the material, and both the feed side and the discharge side of the transmission component are provided with pressure-applying components, the pressure-applying components and the roller surfaces of the adjacent transmission rollers being in pressure contact.

[0007] When the long-axis transmission structure of the above technical solution is in operation, the pressure applied by the pressure component to the conveyor rollers on the feed and discharge sides of the transmission assembly causes the conveyor rollers on both sides of the transmission assembly to tend to move towards the center of the transmission assembly. This reduces the gap variation between two adjacent conveyor rollers in the transmission assembly. When the material film passes between the two conveyor rollers, the conveyor rollers on both sides of the film apply a stable and consistent force to the film, thereby ensuring that the friction between the contact points between the conveyor rollers and the film and all parts of the film is equal, making the transmission distance of the film consistent throughout. In this way, stable transmission of film material is achieved, and the effective service life of the device is extended.

[0008] Preferably, the pressure-applying component is a pressure roller assembly, which includes a rotatably disposed pressure roller, the roller surface of which is in pressure rolling engagement with the roller surface of the transmission roller.

[0009] By adopting the above technical solution, the friction between the rotating pressure roller and the transmission roller is ensured to be rolling friction, thereby reducing the resistance to the rotation of the transmission roller and reducing the power consumption of the drive device during operation, which is conducive to achieving energy saving and environmental protection of the device.

[0010] Preferably, there are two pressure rollers. The transmission roller adjacent to the pressure roller is the pressure transmission roller, and the transmission roller adjacent to the pressure transmission roller is the pressure receiving roller. The plane containing the center line of the pressure transmission roller and the center line of the pressure receiving roller is the pressure transmission surface. The two pressure rollers are respectively arranged on both sides of the pressure transmission surface.

[0011] By adopting the above technical solution, the pressure is applied from both the upper and lower sides of the pressure transmission surface to the transmission rollers on the feed and discharge sides of the transmission component, thereby preventing the transmission rollers from sliding up and down in a direction perpendicular to the pressure transmission surface, which is beneficial to achieving stable transmission of film materials.

[0012] Preferably, the two pressure rollers are equidistant from the pressure transmission surface.

[0013] By adopting the above technical solution, the two pressure rollers are mirror-symmetrical about the pressure transmission surface, so that the two pressure rollers apply pressure to the transmission roller from radially symmetrical positions about the pressure transmission surface, preventing the pressure rollers from sliding in a direction perpendicular to the pressure transmission surface, further ensuring the stable rotation of the pressure rollers, which is conducive to achieving stable transmission of film materials.

[0014] Preferably, the distribution direction of the transmission rollers is perpendicular to their axis; there are a total of three pressure roller assemblies on both sides of the transmission assembly, one of which is a single pressure roller assembly, and the other two are paired double pressure roller assemblies, with the single pressure roller assembly disposed between the two double pressure roller assemblies.

[0015] By adopting the above technical solution, the total number of pressure roller assemblies is reduced, the structure is simplified, and the cost is reduced. In addition, of the three pressure roller assemblies, one and the other two apply pressure to the transmission rollers on both sides of the transmission assembly, and the single pressure roller assembly is set between the two double pressure roller assemblies to ensure the pressure range.

[0016] Preferably, the single pressure roller assembly is in contact with the middle of the transfer roller.

[0017] By adopting the above technical solution, the single pressure roller assembly applies pressure to the transmission roller from the center of the transmission roller, ensuring that the transmission roller is subjected to uniform force at the single pressure roller assembly.

[0018] Preferably, the distance between the two dual pressure roller assemblies and the single pressure roller assembly is equal.

[0019] By adopting the above technical solution, the transmission rollers at the two double pressure roller assemblies are subjected to uniform force, further reducing the gap variation between two adjacent transmission rollers, thereby achieving stable transmission of film materials.

[0020] Preferably, in two adjacent transfer rollers, one of them has multiple annular drainage grooves along its length, and the centerline of the drainage grooves coincides with the centerline of the transfer roller.

[0021] By adopting the above technical solution, firstly, it facilitates the discharge of air between the film and the transfer roller through the venting groove, avoiding residual air between the film and the transfer roller, which could lead to excessive compression of the residual air and damage to the film. Secondly, when the film is transferred through the gap between the two transfer rollers, the film is deformed by the compression of the transfer rollers. At this time, the venting groove can accommodate the deformed part of the film and guide the direction of deformation of the film, thereby reducing the deformation of the film in its width direction, reducing the adverse effects of the compression force of the transfer rollers on the film, and ensuring the quality of the film after transfer.

[0022] Preferably, the pressure roller assembly is connected to a translation device that drives its movement, and the direction of movement of the pressure roller assembly is perpendicular to its length direction and parallel to its corresponding pressure transmission surface.

[0023] By adopting the above technical solution, the translation device can drive the pressure roller assembly to move and change its position, thereby adjusting its pressure on the transmission roller. This avoids excessive pressure affecting the rotation of the transmission roller and thus affecting the film transmission, while also avoiding insufficient pressure resulting in insufficient squeezing force on the transmission roller. In this way, it is beneficial to adjust the pressure of the pressure roller assembly on the transmission roller, thereby achieving stable film transmission.

[0024] Preferably, the conveying rollers on the feed side and / or discharge side of the conveying assembly are connected to a pressure regulating component, which is used to adjust the pressure between the conveying rollers and the material.

[0025] By adopting the above technical solution, the pressure between the transmission roller and the material is adjusted by the adjustment component, so as to avoid the pressure between the transmission roller and the material being too small, resulting in low friction between the material and the transmission roller, making it difficult to achieve material transmission. At the same time, the pressure between the transmission roller and the material is also avoided, which would lead to excessive friction between the two and increase the energy consumption of material conveying.

[0026] Preferably, the transfer roller is oscillating in a direction perpendicular to its axis.

[0027] By adopting the above technical solution, the pressure between the conveyor roller and the material is adjusted by swinging the conveyor roller along a direction perpendicular to its axis.

[0028] Preferably, the two ends of the transmission component are provided with mounting plates facing each other, and each of the two mounting plates is rotatably provided with a mounting seat. The two ends of the transmission roller are respectively connected to the two mounting seats. The pressure regulating component includes a translation device, and the output end of the translation device abuts against the mounting seat.

[0029] By adopting the above technical solution, the translation device is started, and its output end abuts against the mounting base, causing the mounting base to drive the transmission roller to rotate at a certain angle, thereby adjusting the pressure between the transmission roller and the material.

[0030] Preferably, the translation device includes a cylinder, the cylinder barrel of which is disposed on the mounting plate, and the piston rod of the cylinder is fixedly connected to a push block, the push block abutting against the mounting base.

[0031] By adopting the above technical solution, the cylinder is started, driving its piston rod to move, which in turn drives the push block to move. The push block abuts against the mounting base, and the mounting base drives the transmission roller to rotate, thereby adjusting the pressure between the transmission roller and the material.

[0032] Preferably, the pusher block contacts the mounting surface.

[0033] By adopting the above technical solution, the surface contact between the push block and the mounting base is utilized to ensure good contact between the push block and the mounting base. This avoids excessive pressure due to excessive pressure caused by an insufficient contact area between the push block and the mounting base, which could result in dents on the push block and the mounting base.

[0034] Preferably, the cylinder barrel is rotatably connected to the mounting plate, and the mounting plate is provided with a limiting member for limiting the rotation angle of the cylinder barrel.

[0035] By adopting the above technical solution, the rotation angle of the push block can be easily adjusted by using the cylinder barrel rotation connection, so that the push block and the mounting base can maintain good surface contact. The rotation angle of the cylinder barrel is limited by the limiting component, so that the push block can contact the mounting base when the cylinder drives the push block to move in and out.

[0036] Preferably, the mounting plate has an opening, the cylinder barrel of the cylinder is disposed in the opening, the cylinder barrel is fixedly connected to a fixing seat, the fixing seat is rotatably connected to the mounting plate, and the limiting member is the inner bottom wall of the opening.

[0037] By adopting the above technical solution, an opening is set on the mounting plate, the cylinder barrel is placed in the opening, and the inner bottom wall of the opening is used as a support, which reduces the production material of the mounting plate and reduces the production cost of the device.

[0038] Preferably, the push block is fixedly connected to a crossbar, and the pressure-applying component is disposed on the crossbar.

[0039] By adopting the above technical solution, pressure contact between the pressure-applying component and the conveyor roller is ensured during the rotation of the mounting base, thereby ensuring stable material conveying.

[0040] Preferably, the driving device includes at least two transmission gears, which correspond one-to-one with the transmission rollers and are coaxially fixedly connected, with the transmission gears corresponding to two adjacent transmission rollers meshing with each other.

[0041] By adopting the above technical solution, when the driving device drives one of the transmission rollers to rotate, it drives the transmission gear on the transmission roller to rotate. The transmission gear acts on the transmission gear meshing with it, thereby driving the remaining transmission rollers to rotate in a forced manner. This ensures that the linear speed of the roller surface rotation of each transmission roller is the same, so that the feeding speed on both sides of the film material is consistent, which is beneficial to the stable conveying of the film material.

[0042] Preferably, there are three transmission rollers distributed along the length direction; of the three transmission rollers, the transmission roller located at the center position is the driving roller connected to the driving device, and the other two are driven rollers.

[0043] By adopting the above technical solution, there are two gaps between the transmission rollers when the transmission component is running, which ensures the stable transmission of the film. At the same time, the transmission roller in the center position is set as the active roller, which reduces the number of driving devices and facilitates the transmission of film material by driving the transmission rollers on both sides of the transmission roller through one transmission roller.

[0044] In summary, the long-axis transmission structure of the present invention reduces the gap variation between two adjacent transmission rollers by applying pressure to the transmission rollers on both sides of the transmission assembly through the pressure-applying component. This ensures that both sides of the film are subjected to the same frictional force during the conveying process, thereby achieving stable material transmission and extending the service life of the device. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0046] Figure 2 yes Figure 1 Enlarged view of part A;

[0047] Figure 3 yes Figure 1 Enlarged view of part B;

[0048] Figure 4 This is a schematic diagram of the pressure roller assembly of Embodiment 1 of the present invention;

[0049] Figure 5 This is a schematic diagram of the drive device according to Embodiment 1 of the present invention;

[0050] Figure 6 yes Figure 1 Top view;

[0051] Figure 7 yes Figure 6 AA-direction cross section;

[0052] Figure 8 yes Figure 7 Enlarged view of part B;

[0053] Figure 9 This is a schematic diagram of the structure of the single pressure roller assembly and the transmission assembly in Embodiment 1 of the present invention;

[0054] Figure 10 This is a schematic diagram of the structure of the double pressure roller assembly and the transmission assembly in Embodiment 1 of the present invention;

[0055] Figure 11 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0056] Figure 12 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0057] Figure 13 yes Figure 12 Enlarged view of part D;

[0058] In the diagram: 1. Transmission assembly, 1a. Transmission roller, 1aa. Driven roller, 1ab. Driven roller, 1a-1. Drainage trough, 1a1. Pressure roller, 1a2. Pressure roller, 2. Drive unit, 2a. Motor, 2b. Drive gear, 2c. Driven gear, 2d. Synchronous belt, 2e. Transmission gear, 3. Pressure roller assembly, 3a. Pressure roller, 3b. Fixing block, 3b-1. Positioning hole, 3c. Bracket, 4. Translation device, 4a. Cylinder, 4b. Push block, 4c. Fixing seat, 4d. Second pin, 5. Mounting plate, 5-1. Opening, 6. Bearing, 7. Mounting seat, 8. Limiting element, 9. Horizontal bar, 9-1. Insertion hole, 10. Vertical bar, 11. First pin. Detailed Implementation

[0059] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0060] Example 1

[0061] like Figures 1-10 As shown, the long-axis transmission structure of Embodiment 1 includes two parallel mounting plates 5. A transmission component 1 for transmitting thin-film materials is disposed between the two mounting plates 5. The transmission component 1 includes two transmission rollers 1a with parallel and rotatable axes. One of the two transmission rollers 1a is a smooth-surfaced driving roller 1aa with bearings 6 at both ends, which are mounted on the mounting plate 5. The other is a driven roller 1ab with multiple drainage grooves 1a-1 along its length, the axis of which coincides with the axis of the driven roller 1ab. The driving roller 1aa is connected to a driving device 2, which is mounted on one of the mounting plates 5. The driving device 2 drives the driving roller 1aa to rotate around its axis. The roller surfaces of the driving roller 1aa and the driven roller 1ab cooperate to press the material and rotate to transport the material. Both the feed side (i.e. the side of the drive roller 1aa facing away from the driven roller 1ab) and the discharge side (i.e. the side of the driven roller 1ab facing away from the drive roller 1aa) of the transmission assembly 1 are provided with pressure members, and the pressure members are in contact with the roller surface of the adjacent transmission roller 1a.

[0062] In this embodiment, during operation of the long-axis transmission structure, the thin film material passes through the gap between the driving roller 1aa and the driven roller 1ab. The drive device 2 operates, causing the driving roller 1aa to rotate around its axis. Through friction, the material rotates between the driving roller 1aa and the driven roller 1ab, while the driven roller 1ab rotates in the opposite direction to the driving roller 1aa, thus achieving material transmission. To reduce deformation of the gap between the driving roller 1aa and the driven roller 1ab, which could affect material transmission, pressure is applied to the driving roller 1aa and the driven roller 1ab by pressure-applying components on both sides of the transmission assembly 1. This reduces the amount of deformation in the gap between the two transmission rollers 1aa, ensuring that the frictional force on the thin film material is uniform across the driving roller 1aa and the driven roller 1ab, allowing the thin film material to move in a direction perpendicular to its width, thus ensuring stable material transmission.

[0063] In the two transmission rollers 1a, the driven roller 1ab has a drainage groove 1a-1 (e.g., Figure 2 As shown in the figure, this design has two advantages. First, during the transmission process, the air between the film and the driven roller 1ab can be easily discharged through the venting groove 1a-1, ensuring the flatness of the film transmission and preventing excessive compression of the air inside the film due to residual air between the film and the driven roller 1ab, which could lead to film damage. Second, during the transmission process, the driving roller 1aa and the driven roller 1ab squeeze the film from both sides, causing the film to deform. At this time, the venting groove 1a-1 can accommodate the deformed part of the film, thereby reducing the deformation of the film to both sides in its width direction and affecting the transmission quality of the film.

[0064] like Figure 5 As shown, in order to drive the active roller 1aa to rotate, the drive device 2 includes a motor 4a fixed on one of the mounting plates 5, the output shaft of the motor 4a is coaxially fixedly connected to the drive gear 2b, and also includes a synchronous belt 2d and a driven gear 2c. The drive gear 2b and the driven gear 2c are respectively rotatably arranged at both ends inside the synchronous belt 2d, and the driven gear 2c is coaxially fixedly connected to the active roller 1aa.

[0065] When the equipment is running, the motor 4a starts, driving the drive gear 2b to rotate. The drive gear 2b acts on the convex teeth on the inner side of the synchronous belt 2d, thereby driving the synchronous belt 2d to rotate. The convex teeth at the other end of the synchronous belt 2d act on the driven gear 2c, driving the driven gear 2c to rotate, thereby realizing the rotation of the drive roller 1aa to transfer the film material.

[0066] like Figure 4 As shown, the pressure roller assembly 3 includes a fixing block 3b, and a bracket 3c is fixed on the side of the fixing block 3b adjacent to the transmission roller 1a. Two pressure rollers 3a are rotatably mounted on the bracket 3c, and the roller surface of the pressure roller 3a is in contact with the roller surface of the adjacent transmission roller 1a.

[0067] When the pressure-applying component applies pressure to the transmission roller 1a, it comes into contact with the roller surface of the transmission roller 1a. At this time, by rotating the pressure roller 3a, the relative friction between the pressure roller 3a and the transmission roller 1a is reduced, which facilitates the rotation of the transmission roller 1a and reduces the energy consumption of the drive device 2 during operation, thereby helping to achieve energy saving.

[0068] To further achieve stable material transfer, the transfer roller 1a adjacent to the pressure roller 3a is called the pressure-transmitting roller 1a1, and the transfer roller 1a adjacent to the pressure-transmitting roller 1a1 is called the pressure-receiving roller 1a2. The plane containing the centerlines of the pressure-transmitting roller 1a1 and the pressure-receiving roller 1a2 is called the pressure-transmitting surface. The two pressure rollers 3a are respectively arranged on both sides of the pressure-transmitting surface and are equidistant from the pressure-transmitting surface. Figure 9 As shown, the driven roller 1ab is adjacent to the pressure roller assembly 3, forming the pressure transmission roller 1a1, while the driving roller 1aa adjacent to the pressure transmission roller 1a1 is the pressure receiving roller 1a2; and as... Figure 10 As shown, the driving roller 1aa is adjacent to the two pressure roller assemblies 3, which is the pressure transmission roller 1a1, while the driven roller 1ab adjacent to the pressure transmission roller 1a1 is the pressure receiving roller 1a2.

[0069] This design ensures that the two pressure rollers 3a are mirror-symmetrically distributed about the pressure transmission surface. As a result, the contact areas between the two pressure rollers 3a and the transmission roller 1a are symmetrical about the pressure transmission surface. The resultant force of the pressure applied by the two pressure rollers 3a to the transmission roller 1a is parallel to the pressure transmission surface, thereby preventing the transmission roller 1a from sliding up and down on the pressure transmission surface. This causes the transmission roller 1a to tend to move in a direction parallel to the pressure transmission surface under the action of the two pressure rollers 3a.

[0070] To reduce the number of parts in the equipment and lower its production costs, such as Figure 1 and Figure 6 As shown, there are three pressure roller assemblies 3 in total. Two pressure roller assemblies 3 are adjacent to the driving roller 1aa. The two pressure roller assemblies 3 are double pressure roller assemblies arranged in pairs. The two double pressure roller assemblies are in contact with the two ends of the driving roller 1aa. There is one pressure roller assembly adjacent to the driven roller 1ab. The pressure roller assembly is a single pressure roller assembly that is in contact with the center of the driven roller 1ab.

[0071] By adopting the above-mentioned structural method, on the one hand, the number of pressure roller assemblies 3 is reduced, thus reducing the production cost of the equipment. On the other hand, the single pressure roller assembly applies pressure from the center of the driven roller 1ab, and the two double pressure roller assemblies apply pressure from both ends of the driving roller 1aa, forming a stable triangular structure. This ensures that the driving roller 1aa and the driven roller 1ab apply uniform pressure to both sides of the film, which is beneficial to the stable transmission of film materials.

[0072] like Figure 1 and Figure 4As shown, in order to fix the fixing block 3b in the pressure roller assembly 3, two positioning holes 3b-1 are provided on the fixing block 3b. Horizontal bars 9 are provided on the upper and lower sides of the fixing block 3b. The two horizontal bars 9 are fixedly connected by several vertical bars 10 distributed at intervals. Two insertion holes 9-1 are provided on the horizontal bars 9 that correspond one-to-one with the positioning holes 3b-1 and are inserted into each other.

[0073] With the above design, the insertion and engagement between the positioning hole 3b-1 and the insertion hole 9-1 facilitates the fixing block 3b of the pressure roller assembly 3 to be fixed on the crossbar 9. When replacement is required, the pressure roller assembly 3 can be removed from the lower crossbar 9 simply by removing the upper crossbar 9. Then, a new pressure roller assembly can be installed by placing the upper crossbar 9 on the fixing block 3b, aligning the insertion hole 9-1 with the positioning hole 3b-1, and then fixing the position of the fixing block 3b by inserting the pin. This facilitates the replacement and installation of the pressure roller assembly 3.

[0074] like Figure 1 As shown, mounting plates 5 are provided at both ends of the transmission component 1, and the two ends of the crossbar 9 adjacent to the drive roller 1aa are fixed on the two mounting plates 5, thus fixing the position of the pressure roller component 3 adjacent to the drive roller 1aa.

[0075] like Figure 1 and Figure 3 As shown, the driven roller 1ab is connected to a pressure regulating component, which is used to adjust the pressure between the driven roller 1ab and the material; the driven roller 1ab is oscillating in a direction perpendicular to its axis. A first pin 11 is vertically fixed on the mounting plate 5, and a mounting seat 7 is sleeved on the first pin 11. The mounting seat 7 is connected to the driven roller 1ab. The pressure regulating component includes a translation device 4, which includes a cylinder 4a. The cylinder barrel of the cylinder 4a is fixed to a fixed seat 4c. The fixed seat 4c is sleeved on the second pin 4d, which is vertically fixed to the mounting plate 5. An opening 5-1 is provided on the mounting plate 5. The cylinder barrel of the cylinder 5a is located in the opening 5-1. The inner bottom wall of the opening 5-1 is a limiting member 8, which is used to limit the rotation angle of the cylinder barrel of the cylinder 5. A push block 4b is fixedly connected to the piston rod of the cylinder 5a. One side of the push block 4b abuts against the other side of the mounting seat 7. The two ends of the horizontal bar 9 adjacent to the driven roller 1ab are fixedly connected to the two push blocks 4b respectively.

[0076] By employing the above design, the inner bottom wall of the opening 5-1 is used as a limiting element 8 to restrict the rotation angle of the cylinder 4a. This ensures that when the cylinder 4a drives the push block 4b to extend and retract, the side of the push block 4b can maintain good surface contact with the side of the mounting base 7. Consequently, the mounting base 7 drives the driven roller 1ab to swing around the axis of the first pin 11, adjusting the pressure between the driven roller 1ab and the film material. This, in turn, adjusts the pressure between the driving roller 1aa and the film, preventing excessive pressure from the two transmission rollers 1a on the material, which would increase the energy consumption for driving the two transmission rollers 1a to rotate, and also preventing insufficient pressure from the two transmission rollers 1a on the material, which would result in low friction and affect the stable transmission of the film material. In addition, by fixing the push block 4b to the crossbar 9, it is ensured that during the rotation and position adjustment of the driven roller 1ab, the pressure roller 3a in the pressure roller assembly 3 is always in contact with the driven roller 1ab, maintaining a pressure fit between the roller surface of the pressure roller 3a and the roller surface of the driven roller 1ab. It should be noted that the pressure regulating component can also adopt other mechanical structures to adjust the transmission pressure between the driven roller 1ab and the material.

[0077] The two ends of the horizontal bar 9 adjacent to the driving roller 1aa are fixedly connected to two mounting plates 5 respectively, while the two ends of the horizontal bar 9 adjacent to the driven roller 1ab are connected to cylinders 4a. The cylinder barrel of the cylinder 4a is fixedly connected to the mounting plate 5 through the fixed seat 4c. The piston rod of the cylinder 4a is fixedly connected to the push block 4b. The length direction of the piston rod is perpendicular to the axis of the transmission roller 1a and parallel to the pressure transmission surface. The mounting plate 5 is provided with an opening 5-1. The push block 4b is fixedly connected to the mounting plate 5 through the opening 5-1. The two push blocks 4b are fixedly connected by horizontal bars 4e. There are two horizontal bars 4e. The two horizontal bars 4e are fixedly connected by several vertical bars 10.

[0078] The above design facilitates the fixing of the position of the pressure roller assembly 3 on one side of the active roller 1aa, thus fixing the position of the pressure roller 3a in the pressure roller assembly 3. The roller surface of the pressure roller 3a is in contact with the roller surface of the transmission roller 1a, thereby squeezing the transmission roller 1a. On the other hand, on one side of the driven roller 1abd, the cylinder 4a, the horizontal bar 9, the fixed seat 4c, the push block 4b, and the vertical bar 10 constitute the translation device 4. The cylinder 4a drives the push block 4b to move, thereby changing the position of the horizontal bar 9. This not only adjusts the position of the pressure roller 3a, and thus adjusts the squeezing force of the pressure roller 3a on the driven roller 1ab, but also separates the upper horizontal bar 9 from the fixed block 3b by moving the pressure roller 3a away from the transmission roller 1a. This makes it easy to remove the fixed block 3b, place the new pressure roller assembly 3 on the lower horizontal bar 3b, and then place the horizontal bar 9 on the fixed block 3b. The positioning hole 3b-1 and the insertion hole 9-1 are inserted and fitted together to complete the replacement of the pressure roller assembly 3.

[0079] Example 2

[0080] like Figure 11 As shown, the long shaft transmission structure of Embodiment 2 is based on Embodiment 1, except that there are three transmission rollers 1a, which are arranged side by side. The transmission roller 1a located in the center is the active roller 1aa connected to the drive device 2, and the other two are driven rollers 1ab. Both ends of the driven rollers 1ab on both sides of the active roller are connected to pressure regulating components.

[0081] In this embodiment, the driving device 2 drives the driven rollers 1ab on both sides of the central active roller 1aa to rotate, and the material is transferred through the gap between the two sides of the driving roller 1aa. Compared with embodiment 1, this embodiment further ensures that the material transfer distance is consistent at all points by squeezing the driven rollers 1ab corresponding to the two gaps, which is beneficial for the stable conveying of thin film materials. The pressure roller assembly 3 applies pressure to the driven rollers 1ab on both sides, while the active roller 1aa is located between the two driven rollers 1ab. At this time, both driven rollers 1ab are pressure transmission rollers 1a1, and the active roller 1aa is pressure receiving roller 1a2. During operation, pressure regulating components are installed on both sides of the transmission component 1. The operation of cylinder 4a in the pressure regulating component drives push block 4b to move, which in turn drives crossbar 9 to move and rotate mounting base 7, thereby changing the position of driven roller 1ab and adjusting the pressure between driven roller 1ab and film material. This prevents the pressure of drive roller 1aa and driven roller 1ab on both sides of film material from being too high or too low, thus ensuring appropriate transmission pressure between drive roller 1aa, driven roller 1ab and film material, thereby achieving stable material conveying.

[0082] Example 3

[0083] like Figure 12 and Figure 13 As shown, the long shaft transmission structure of Embodiment 3 is based on Embodiment 1, except that the drive device 2 further includes two transmission gears 2e, which correspond one-to-one with two transmission rollers 1a (i.e., the driving roller 1aa and the driven roller 1ab) and are coaxially fixedly connected, and the two transmission gears 2e mesh with each other.

[0084] With the above design, when motor 4a drives drive gear 2b to rotate, it drives driven gear 2c to rotate via synchronous belt 2d. This causes drive roller 1aa to rotate, which in turn drives transmission gear 2e on drive roller 1aa to rotate. The two meshing transmission gears 2e then force drive driven roller 1ab to rotate, ensuring that the linear velocities of the two transmission rollers 1a are the same. Because the two transmission rollers 1a are in close contact with both sides of the film material, even if the friction coefficients on both sides of the film material differ significantly, the consistent rotational speed of the two transmission rollers 1a ensures that the conveying speed on both sides of the material remains consistent, thus guaranteeing stable transmission of the film material.

[0085] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A long-axis conveying structure, comprising a conveying assembly (1) for conveying a thin film material, the conveying assembly (1) comprising at least two conveying rollers (1a) with parallel axes; at least one conveying roller (1a) is connected to a driving device (2), the driving device (2) driving the conveying roller (1a) to rotate about its axis; the roller surfaces of two adjacent conveying rollers (1a) cooperate to press the material and rotate to convey the material, characterized in that: The feed side and discharge side of the transmission assembly (1) are both provided with pressure-applying components, and the pressure-applying components and the roller surface of the adjacent transmission roller (1a) are in pressure contact. The pressure-applying component is a pressure roller assembly (3), which includes a rotatably disposed pressure roller (3a), and the roller surface of the pressure roller (3a) is in pressure rolling contact with the roller surface of the transmission roller (1a). Two pressure rollers (3a) are provided. The transmission roller (1a) adjacent to the pressure roller (3a) is the pressure transmission roller (1a1), and the transmission roller (1a) adjacent to the pressure transmission roller (1a1) is the pressure receiving roller (1a2). The plane containing the center line of the pressure transmission roller (1a1) and the center line of the pressure receiving roller (1a2) is the pressure transmission surface. The two pressure rollers (3a) are respectively arranged on both sides of the pressure transmission surface. The distance between the two pressure rollers (3a) and the pressure transmission surface is equal. In two adjacent transmission rollers (1a), one of them has multiple annular drainage grooves (1a-1) along its length, and the axis of the drainage grooves (1a-1) coincides with the axis of the transmission roller (1a).

2. The long-axis transmission structure according to claim 1, characterized in that: The distribution direction of the transmission roller (1a) is perpendicular to its axis; there are three pressure roller assemblies (3) on both sides of the transmission assembly (1), one of which is a single pressure roller assembly and the other two are paired double pressure roller assemblies. The single pressure roller assembly (3) is located between the two double pressure roller assemblies. The single pressure roller assembly is in contact with the middle of the transmission roller (1a). The distance between the two double pressure roller assemblies and the single pressure roller assembly is equal.

3. The long-axis transmission structure according to claim 1, characterized in that: The transmission rollers (1a) on the feed side and / or discharge side of the transmission assembly (1) are connected to a pressure regulating assembly, which is used to regulate the pressure between the transmission rollers (1a) and the material.

4. The long-axis transmission structure according to claim 3, characterized in that: The transmission roller (1a) is oscillating in a direction perpendicular to its axis; the two ends of the transmission assembly (1) are provided with mounting plates (5) facing each other, and mounting seats (7) are rotatably provided on both mounting plates (5). The two ends of the transmission roller (1a) are respectively connected to the two mounting seats (7). The pressure regulating assembly includes a translation device (4), and the output end of the translation device (4) abuts against the mounting seat (7). The translation device (4) includes a cylinder (4a), the cylinder barrel of the cylinder (4a) is provided on the mounting plate (5), and the piston rod of the cylinder (4a) is fixedly connected to a push block (4b). The push block (4b) is in contact with the surface of the mounting seat (7).

5. The long-axis transmission structure according to claim 4, characterized in that: The cylinder barrel of the cylinder (4a) is rotatably connected to the mounting plate (5). The mounting plate (5) is provided with a limiting member (8) for limiting the rotation angle of the cylinder barrel of the cylinder (4a). The mounting plate (5) is provided with an opening (5-1). The cylinder barrel of the cylinder (4a) is disposed in the opening (5-1). The cylinder barrel of the cylinder (4a) is fixedly connected to a fixing seat (4c). The fixing seat (4c) is rotatably connected to the mounting plate (5). The limiting member (8) is the inner bottom wall of the opening (5-1).

6. The long-axis transmission structure according to claim 4, characterized in that: The push block (4b) is fixedly connected to a crossbar (9), and the pressure-applying component is disposed on the crossbar (9).

7. The long-axis transmission structure according to claim 1, characterized in that: The drive device (2) includes at least two transmission gears (2e), which correspond one-to-one with the transmission rollers (1a) and are coaxially fixedly connected. The transmission gears (2e) corresponding to two adjacent transmission rollers (1a) mesh with each other.

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