A center partition flattening device

Abstract

The utility model discloses a center partition flattening device, including frame, set up in the top of frame's flattening frame and clamp roll flattening mechanism, clamp roll flattening mechanism includes two first flattening mounting plate and two side clamping roll assemblies that are left and right opposite settings, two first flattening mounting plate respectively sets up in the top of flattening frame and the inside between two is connected through first support, two side clamping roll assemblies are located between two first flattening mounting plate and set up respectively on first support, two side clamping roll assemblies are used for clamping the both sides of base material respectively, clamp roll flattening mechanism still includes center clamping roll assembly, center clamping roll assembly is located at the center between two side clamping roll assemblies and is used for clamping the center part of base material, and the clamping force of center clamping roll assembly is greater than the clamping force of side clamping roll assembly, and center clamping roll assembly includes center base, center clamping roll structure and center driving part. The utility model can avoid the situation that base material appears to run off.

Description

Technical Field

[0001] This utility model relates to a flattening device, specifically a central partition flattening device. Background Technology

[0002] In the production process of lithium battery electrode sheets, separators and other substrates, it is usually necessary to go through unwinding, coating, baking and rewinding. After baking, the substrate usually wrinkles. Therefore, a flattening device is usually set between the baking and rewinding processes to flatten the substrate. Otherwise, it will cause defects such as wrinkles, ridges, cracks, pinholes and tape breaks.

[0003] Currently, a flattening device is generally used to flatten the substrate. This device includes a clamping roller flattening mechanism, which typically uses two side clamping roller assemblies to clamp the two sides of the substrate. Under the action of the static friction generated between the two side clamping roller assemblies and the substrate, a lateral flattening force is applied to the two sides of the substrate, pulling it to move to both sides, thus flattening the substrate. This structure has a good flattening effect on the center and edge wrinkles of the substrate. However, when the flatness of the substrate is inconsistent (such as collapsed edges, curling, wrinkling, etc.), the static friction generated between the two side clamping roller assemblies and the substrate will change. Therefore, it is impossible to guarantee that the static friction generated between the two side clamping roller assemblies and the substrate is consistent. This will cause an imbalance in the flattening force applied to the two sides of the substrate by the two side clamping roller assemblies, causing the substrate to move towards the side with the greater flattening force, resulting in deviation.

[0004] Therefore, there is an urgent need for an improved flattening device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a center partition flattening device, which can prevent the substrate from deviating.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A center-partition flattening device includes a frame, a flattening frame disposed at the top of the frame, and a clamping roller flattening mechanism. The clamping roller flattening mechanism includes two first flattening mounting plates arranged horizontally opposite each other and two side clamping roller assemblies arranged horizontally opposite each other. The two first flattening mounting plates are respectively disposed at the top of the flattening frame and connected to each other by a first support member. The two side clamping roller assemblies are located between the two first flattening mounting plates and are respectively disposed on the first support member. The two side clamping roller assemblies are used to clamp the two sides of the substrate. The clamping roller flattening mechanism also includes a central clamping roller assembly, which is located at the center between the two side clamping roller assemblies and is used to clamp the center of the substrate. In this location, the clamping force of the central clamping roller assembly is greater than that of the side clamping roller assembly. The central clamping roller assembly includes a central base, a central clamping roller structure, and a central drive component. The central base is mounted on the first support component. The central clamping roller structure includes an upper central clamping roller and a lower central clamping roller arranged vertically opposite each other. The lower central clamping roller is rotatably mounted on the top of the central base, and the upper central clamping roller is rotatably mounted on the output end of the central drive component. The tops of the two first flattened mounting plates are connected by a second support component. The central drive component is mounted on the bottom end of the second support component and is used to drive the upper central clamping roller to move closer to or away from the lower central clamping roller.

[0008] As a preferred technical solution, the top of the central base is provided with a first U-shaped base, the opening of the first U-shaped base faces upward, the two ends of the lower central clamping roller are respectively rotatably disposed on the inner walls of the two ends of the first U-shaped base and the lower central clamping roller part extends out from the opening of the first U-shaped base, the output end of the central drive member is provided with a second U-shaped base, the opening of the second U-shaped base faces downward, the two ends of the upper central clamping roller are respectively rotatably disposed on the inner walls of the two ends of the second U-shaped base and the upper central clamping roller part extends out from the opening of the second U-shaped base.

[0009] As a preferred technical solution, the side clamping roller assembly includes a side base, an angle adjustment drive, a vertical plate, a side drive, a transmission shaft, a side clamping roller structure, and a connecting seat. The side base is mounted on the first support member. The angle adjustment drive is located at the top of the side base. The vertical plate is located above and connected to the angle adjustment drive. The side drive is located on the side of the vertical plate away from the central clamping roller assembly. The transmission shaft passes through the vertical plate and is rotatable relative to the vertical plate. The transmission shaft is located in front of the side drive. The output end of the side drive is rotatably connected to one end of the connecting arm. The other end of the connecting arm... One end is connected to one end of the drive shaft. The side clamping roller structure is located between the vertical plate and the central clamping roller assembly. The side clamping roller structures of the two side clamping roller assemblies are arranged in a figure-eight shape. The side clamping roller structure includes an upper side clamping roller and a lower side clamping roller arranged opposite each other. One end of the upper side clamping roller is rotatably disposed on the side of the vertical plate near the central clamping roller assembly. The other end of the upper side clamping roller extends in the direction near the central clamping roller assembly. The connecting seat is located behind the drive shaft and connected to the drive shaft. The two ends of the lower side clamping roller are rotatably disposed on the inner walls of the two ends of the connecting seat, and the lower side clamping roller portion protrudes from the top of the connecting seat.

[0010] As a preferred technical solution, both the side drive component and the center drive component are pneumatic or hydraulic cylinders, and the angle adjustment drive component is an electric rotary platform.

[0011] As a preferred technical solution, the first support member includes at least two support rods arranged side by side, one in front of the other, which are respectively a first support rod and a second support rod. The side base is provided with a first through hole and a second through hole corresponding to the first support rod and the second support rod, respectively. The side base is slidably sleeved on the outer periphery of the first support rod and the second support rod through the first through hole and the second through hole, and the side base can move left and right along the first support rod and the second support rod. The central base is provided with a third through hole and a fourth through hole corresponding to the first support rod and the second support rod, respectively. The central base is slidably sleeved on the outer periphery of the first support rod and the second support rod through the third through hole and the fourth through hole, and the central base can move left and right along the first support rod and the second support rod.

[0012] As a preferred technical solution, a first linear bearing is provided in the first through hole and is sleeved on the outer periphery of the first support rod, and a second linear bearing is provided in the second through hole and is sleeved on the outer periphery of the second support rod.

[0013] As a preferred technical solution, one side of the side base is provided with two first threaded holes communicating with the first through hole. The first linear bearing is located between the two first threaded holes. Two first screws are threadedly connected to the two first threaded holes respectively, and the ends of the two first screws extend into the first through hole and abut against the first support rod respectively. The other side of the side base is provided with two second threaded holes communicating with the second through hole. The second linear bearing is located between the two second threaded holes. Two second screws are threadedly connected to the two second threaded holes respectively, and the ends of the two second screws extend into the second through hole and abut against the second support rod respectively. One side of the center base is provided with a third threaded hole communicating with the third through hole. A third screw is threadedly connected to the third threaded hole, and the end of the third screw extends into the third through hole and abuts against the first support rod. The other side of the center base is provided with a fourth threaded hole communicating with the fourth through hole. A fourth screw is threadedly connected to the fourth threaded hole, and the end of the fourth screw extends into the fourth through hole and abuts against the second support rod.

[0014] As a preferred technical solution, it also includes an arc-shaped roller flattening mechanism located in front of the clamping roller flattening mechanism. The arc-shaped roller flattening mechanism includes two second flattening mounting plates arranged in a left-right opposite manner and an arc-shaped roller. The two second flattening mounting plates are respectively disposed at the top of the flattening frame. The two ends of the arc-shaped roller are respectively connected to two angle slides. The two angle slides are respectively disposed on two first screw slides. The two first screw slides are respectively disposed on the inner side of two adjusting plates. The two adjusting plates are respectively disposed on the inner side of two second flattening mounting plates.

[0015] As a preferred technical solution, the system further includes a first roller guide mechanism, a second roller guide mechanism, and a third roller guide mechanism. The first roller guide mechanism is located in front of the arc-shaped roller flattening mechanism. The first roller guide mechanism includes two first roller guide mounting plates and a first roller arranged opposite each other. The two first roller guide mounting plates are respectively located at the top of the frame, with a portion of the first roller guide mounting plates protruding from one side of the frame. The two ends of the first roller are rotatably disposed inside the two first roller guide mounting plates. The second roller guide mechanism is located behind the clamping roller flattening mechanism. The second roller guide mechanism includes two second roller guide mounting plates and a second roller arranged opposite each other. The two second roller guide mounting plates are respectively disposed on the flattening frame. At the top of the frame, the two ends of the second roller are rotatably mounted on the inner sides of the two second roller mounting plates. The outer circumferential surface of the second roller is provided with a plurality of exhaust grooves at intervals along the circumferential direction. The length direction of the exhaust grooves is the same as the axial direction of the second roller. The third roller mechanism is located at the rear of the frame. The third roller mechanism includes two third roller mounting plates and a third roller arranged in a left-right opposite manner. The two third roller mounting plates are respectively arranged on the other side of the frame. One end of the third roller is rotatably mounted on the inner side of one of the third roller mounting plates. The other end of the third roller is rotatably mounted on a second screw slide. The second screw slide is arranged on the inner side of the other third roller mounting plate.

[0016] As a preferred technical solution, the top of the flattening frame is provided with two first fixing plates arranged opposite each other. The first fixing plates are provided with first strip-shaped holes extending along their height direction. Two second fixing plates are provided on the outer sides of the two first flattening mounting plates respectively. The two second fixing plates correspond to the two first fixing plates and are respectively attached to the outer sides of the two first fixing plates. The second fixing plates are provided with second strip-shaped holes extending along their length direction. Connecting fasteners are installed in the second strip-shaped holes of the second fixing plates and the corresponding first strip-shaped holes of the first fixing plates.

[0017] The beneficial effects of this utility model are as follows: By setting a central clamping roller assembly, the central part of the substrate can be clamped. The clamping force of the central clamping roller assembly is greater than that of the side clamping roller assemblies. Therefore, the static friction between the central clamping roller assembly and the substrate is greater than that between the side clamping roller assemblies and the substrate. Thus, the static friction between the central clamping roller assembly and the substrate can isolate the flattening force applied to both sides of the substrate by the two side clamping roller assemblies, and it is always balanced with the flattening force on both sides of the substrate. Therefore, when the flatness of the substrate is inconsistent, causing the flattening force applied to both sides of the substrate by the two side clamping roller assemblies to be unbalanced, the substrate will not deviate. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of a central partition flattening device at a first angle according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the second angle of the central partition flattening device shown.

[0021] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the central partition flattening device shown.

[0022] Figure 4 yes Figure 1 A schematic diagram of the first angle of the clamping roller flattening mechanism of the central partition flattening device shown.

[0023] Figure 5 yes Figure 4 A schematic diagram of the second angle of the clamping roller flattening mechanism of the central partition flattening device shown.

[0024] Figure 6 yes Figure 4 A schematic diagram of the first angle of the right-side side clamping roller assembly of the clamping roller flattening mechanism shown.

[0025] Figure 7 yes Figure 6 A schematic diagram of the second angle of the side clamping roller assembly shown;

[0026] Figure 8 yes Figure 1 A schematic diagram of the arc-shaped roller flattening mechanism of the central partition flattening device shown.

[0027] Figure label:

[0028] 10. Rack;

[0029] 20. Flattening frame; 21. First fixing plate; 211. First strip hole; 212. Connecting fastener;

[0030] 30. Clamping roller flattening mechanism; 31. First flattening mounting plate; 311. First support rod; 312. Second support rod; 313. Second support member; 314. Second fixing plate; 3141. Second strip hole; 32. Side clamping roller assembly; 321. Upper side clamping roller; 322. Lower side clamping roller; 323. Side base; 3231. First through hole; 3232. Second through hole; 3233. First linear bearing; 3234. Second linear bearing; 3235. First screw; 3236. Second screw; 324. Angle adjustment drive component; 325. Vertical plate; 326. Side drive component; 3261. Fisheye connector; 327. Drive shaft; 3271. Connecting arm; 328. Connecting seat; 33. Center clamping roller assembly; 331. Upper center clamping roller; 332. Lower center clamping roller; 333. Center base; 3331. Third through hole; 3332. Fourth through hole; 3333. Third threaded hole; 3334. Fourth threaded hole; 334. Second U-shaped seat; 335. Third U-shaped seat; 336. Second upper and lower cylinders;

[0031] 40. Arc-shaped roller flattening mechanism; 41. Arc-shaped roller; 42. Second flattening mounting plate; 43. Angle slide table; 44. First screw slide table; 45. Adjusting plate;

[0032] 50. First roller guide mechanism; 51. First roller guide; 52. First roller guide mounting plate;

[0033] 60. Second roller mechanism; 61. Second roller; 611. Exhaust chute; 62. Second roller mounting plate;

[0034] 70. Third roller mechanism; 71. Third roller; 72. Third roller mounting plate; 73. Second screw slide. Detailed Implementation

[0035] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0036] Please refer to Figures 1 to 3An embodiment of this utility model provides a center partition flattening device, including a frame 10, a flattening frame 20 disposed at the top of the frame 10, and a clamping roller flattening mechanism 30 for flattening a substrate. The substrate may be, for example, an electrode sheet, a diaphragm, etc.

[0037] Combination Figures 4 to 7 As shown, the clamping roller flattening mechanism 30 includes two first flattening mounting plates 31 arranged opposite each other, two side clamping roller assemblies 32 arranged opposite each other, and a center clamping roller assembly 33. The two first flattening mounting plates 31 are respectively disposed at the top of the flattening frame 20 and connected to each other by a first support member. The two side clamping roller assemblies 32 are located between the two first flattening mounting plates 31 and are respectively disposed on the first support member. The two side clamping roller assemblies 32 are used to clamp the two sides of the substrate to apply a lateral flattening force to the two sides of the substrate, thereby pulling the substrate to move to both sides.

[0038] Specifically, the side clamping roller assembly 32 includes a side clamping roller structure, a side base 323, an angle adjustment drive 324, a vertical plate 325, a side drive 326, a transmission shaft 327, and a connecting seat 328.

[0039] A side base 323 is mounted on a first support member, which provides mounting support for the side base 323. An angle adjustment drive member 324 is located at the top of the side base 323, and a vertical plate 325 is located above and connected to the angle adjustment drive member 324. A side drive member 326 is located on the side of the vertical plate 325 away from the central clamping roller assembly 33 and is inclined downwards. A drive shaft 327 passes through a through hole in the vertical plate 325 and can rotate relative to the vertical plate 325. In this embodiment, a rotating bearing is provided in the through hole of the vertical plate 325, and the rotating bearing is sleeved on the outer periphery of the drive shaft 327 to provide rotational support for the drive shaft 327. The drive shaft 327 is located in front of the side drive member 326. The output end of the side drive member 326 is connected to one end of the connecting arm 3271 via a fisheye connector 3261. The other end of the connecting arm 3271 is inclined downwards along the direction close to the side drive member 326, and is connected to one end of the drive shaft 327. The side clamping roller structure is located between the vertical plate 325 and the central clamping roller assembly 33, and the side clamping roller structures of the two side clamping roller assemblies 32 are arranged in a figure-eight shape. The side clamping roller structure includes an upper side clamping roller 321 and a lower side clamping roller 322 arranged vertically opposite each other. One end of the upper side clamping roller 321 is rotatably disposed on the side of the vertical plate 325 close to the central clamping roller assembly 33. Specifically, the side of the vertical plate 325 close to the central clamping roller assembly 33 is provided with a vertical plate mounting hole, and one end of the upper side clamping roller 321 is rotatably disposed in the vertical plate mounting hole. The other end of the upper side clamping roller 321 extends in the direction close to the central clamping roller assembly 33. The connecting seat 328 is located behind and connected to the drive shaft 327. The end of the connecting seat 328 away from the drive shaft 327 is open and is inclined upward in the direction away from the drive shaft 327. The two ends of the lower square clamping roller 322 are rotatably disposed on the inner walls of the two ends of the connecting seat 328. Specifically, the inner walls of the two ends of the connecting seat 328 are provided with two connecting seat through holes, and the two ends of the lower square clamping roller 322 are rotatably disposed in the two connecting seat through holes. The lower square clamping roller 322 protrudes from the top of the connecting seat 328 and extends out from the opening of the connecting seat 328. Angle adjustment drive 324 is used to drive the vertical plate 325 to rotate, thereby driving the side drive 326, connecting arm 3271, transmission shaft 327, upper side clamping roller 321, lower side clamping roller 322 and connecting seat 328 to rotate. By driving the upper side clamping roller 321 and lower side clamping roller 322 to rotate through the angle adjustment drive 324, the angle of the upper side clamping roller 321 and lower side clamping roller 322 can be adjusted.The side drive member 326 drives one end of the connecting arm 3271 to move closer to or further away from the side drive member 326, thereby driving the transmission shaft 327 to rotate via the other end of the connecting arm 3271. The rotation of the transmission shaft 327 drives the connecting seat 328 to rotate, thereby driving the lower side clamping roller 322 to move closer to or further away from the upper side clamping roller 321 to clamp or release the substrate. By clamping the substrate with the upper side clamping roller 321 and the lower side clamping roller 322 of the two side clamping roller assemblies 32, a flattening force can be applied to both sides of the substrate. By adjusting the distance between the upper side clamping roller 321 and the lower side clamping roller 322, the clamping force of the upper side clamping roller 321 and the lower side clamping roller 322 can be adjusted. By adjusting the clamping force and angle of the upper side clamping roller 321 and the lower side clamping roller 322 of the two side clamping roller assemblies 32, the magnitude of the flattening force applied to both sides of the substrate can be adjusted.

[0040] The center clamping roller assembly 33 is used to clamp the center portion of the substrate. The clamping force of the center clamping roller assembly 33 is greater than that of the side clamping roller assemblies 32, thereby isolating the flattening forces applied to both sides of the substrate by the two side clamping roller assemblies 32. The center clamping roller assembly 33 is located at the center between the two side clamping roller assemblies 32, and includes a center clamping roller structure, a center base 333, and a center drive member 336. The center base 333 is mounted on a first support member, which provides mounting support for the center base 333. The center clamping roller structure includes an upper center clamping roller 331 and a lower center clamping roller 332 arranged vertically opposite each other. The lower center clamping roller 332 is rotatably mounted on the top of the center base 333, and the upper center clamping roller 331 is rotatably mounted on the output end of the center drive member 336. The tops of the two first flattening mounting plates 31 are connected by a second support member 313. The center drive member 336 is located at the bottom end of the second support member 313, which provides mounting support for the center drive member 336. The center drive member 336 is used to drive the upper center clamping roller 331 to move closer to or away from the lower center clamping roller 332 to clamp or release the substrate. By clamping the substrate with the upper center clamping roller 331 and the lower center clamping roller 332, the flattening forces applied to both sides of the substrate by the two side clamping roller assemblies 32 can be isolated. By adjusting the distance between the upper center clamping roller 331 and the lower center clamping roller 332, the clamping force of the upper center clamping roller 331 and the lower center clamping roller 332 can be adjusted.

[0041] In this embodiment, a first U-shaped base 334 is provided at the top of the central base 333, with the opening of the first U-shaped base 334 facing upwards. The two ends of the lower central clamping roller 332 are rotatably disposed on the inner walls of the two ends of the first U-shaped base 334. Specifically, two first base mounting holes are provided on the inner walls of the two ends of the first U-shaped base 334, and the two ends of the lower central clamping roller 332 are rotatably disposed in the two first base mounting holes. A portion of the lower central clamping roller 332 extends out from the opening of the first U-shaped base 334. The output end of the central drive unit 336 is provided with a second U-shaped base 335. The opening of the second U-shaped base 335 faces downward. The two ends of the upper central clamping roller 331 are respectively rotatably arranged on the inner walls of the two ends of the second U-shaped base 335. Specifically, the inner walls of the two ends of the second U-shaped base 335 are respectively provided with two second base mounting holes. The two ends of the upper central clamping roller 331 are respectively rotatably arranged in the two second base mounting holes. The upper central clamping roller 331 extends out from the opening of the second U-shaped base 335.

[0042] In this embodiment, the angle adjustment drive 324 is an electric rotary platform. The electric rotary platform is an existing structure, and its structure will not be described in detail here. Using an electric rotary platform allows for precise adjustment of the angle of the side clamping roller structure, thereby ensuring uniform flattening of the substrate. Both the side drive 326 and the center drive 336 are pneumatic or hydraulic cylinders.

[0043] In this embodiment, the top of the flattening frame 20 is provided with two first fixing plates 21 arranged opposite each other. The two first fixing plates 21 are respectively located behind the two first flattening mounting plates 31. The first fixing plates 21 are provided with first strip-shaped holes 211 extending along their height direction. Two second fixing plates 314 are respectively provided on the outer side of the two first flattening mounting plates 31. The two second fixing plates 314 correspond to the two first fixing plates 21 and are respectively attached to the outer side of the two first fixing plates 21. The second fixing plates 314 are provided with second strip-shaped holes 3141 extending along their length direction. Connecting fasteners 212, such as screws, are installed in the second strip-shaped holes 3141 of the second fixing plates 314 and the corresponding first strip-shaped holes 211 of the first fixing plates 211. The number of first strip-shaped holes 211 and second strip-shaped holes 3141 can be set according to the actual situation. With this structure, the height position of the two first flattening mounting plates 31 can be adjusted, thereby adjusting the height position of the two side clamping roller assemblies 32 and the center clamping roller assembly 33. For example, when it is necessary to adjust the height of the two side clamping roller assemblies 32 and the center clamping roller assembly 33, first loosen the connecting fastener 212 or remove it from the corresponding first strip hole 211 and second strip hole 3141. Then, move the two first flat mounting plates 31, the first support member, the second support member 313, the two side clamping roller assemblies 32 and the center clamping roller assembly 33 upward or downward as a whole to the height to be adjusted. Then, tighten the connecting fastener 212 or install it in the corresponding first strip hole 211 and second strip hole 3141.

[0044] In this embodiment, the first support member includes two support rods arranged side-by-side. Understandably, the number of support rods can also be other, such as three or four, depending on the actual situation. The two support rods are a first support rod 311 and a second support rod 312. The side base 323 has a first through hole 3231 and a second through hole 3232 corresponding to the first support rod 311 and the second support rod 312, respectively. The side base 323 is slidably fitted onto the outer periphery of the first support rod 311 and the second support rod 312 through the first through hole 3231 and the second through hole 3232. The central base 333 has a third through hole 3331 and a fourth through hole 3332 corresponding to the first support rod 311 and the second support rod 312, respectively. The central base 333 is slidably fitted onto the outer periphery of the first support rod 311 and the second support rod 312 through the third through hole 3331 and the fourth through hole 3332.

[0045] A first linear bearing 3233 is provided in the first through hole 3231 and is sleeved on the outer periphery of the first support rod 311. A second linear bearing 3234 is provided in the second through hole 3232 and is sleeved on the outer periphery of the second support rod 312. The first linear bearing 3233 and the second linear bearing 3234 provide support for the movement of the side base 323, which can ensure the stability of the movement of the side base 323.

[0046] One side of the side base 323 has two first threaded holes communicating with the first through hole 3231. A first linear bearing 3233 is located between the two first threaded holes. Two first screws 3235 are threadedly connected to the two first threaded holes respectively, and the ends of the two first screws 3235 extend into the first through hole 3231 and abut against the first support rod 311 respectively. The other side of the side base 323 has two second threaded holes communicating with the second through hole 3232. A second linear bearing 3234 is located between the two second threaded holes. Two second screws 3236 are threadedly connected to the two second threaded holes respectively, and the ends of the two second screws 3236 extend into the second through hole 3232 and abut against the second support rod 312 respectively. The side base 323 is fixed to the first support member by having the ends of two first screws 3235 abut against the first support rod 311 and the ends of two second screws 3236 abut against the second support rod 312, thus preventing the side base 323 from moving. One side of the central base 333 has a third threaded hole 3333 communicating with the third through hole 3331. A third screw (not shown in the figure) is threaded into the third threaded hole 3333, and the end of the third screw extends into the third through hole 3331 and abuts against the first support rod 311. The other side of the central base 333 has a fourth threaded hole 3334 communicating with the fourth through hole 3332. A fourth screw (not shown in the figure) is threaded into the fourth threaded hole 3334, and the end of the fourth screw extends into the fourth through hole 3332 and abuts against the second support rod 312. The center base 333 is fixed to the first support member by abutting the end of the third screw against the first support rod 311 and by abutting the end of the fourth screw against the second support rod 312, thus preventing the center base 333 from moving. The first screw 3235, second screw 3236, third screw, and fourth screw are all existing adjustable set handle screws. There are two third threaded holes 3333 and two fourth threaded holes 3334. The number of third screws and fourth screws corresponds to the number of third threaded holes 3333 and fourth threaded holes 3334, respectively. Understandably, the number of third threaded holes 3333 and fourth threaded holes 3334, and the number of third and fourth screws can be set according to actual needs.

[0047] The above structure allows for adjustment of the distance between the two side clamping roller assemblies 32, thus accommodating substrates of varying widths. For example, when adjusting the distance between the two side clamping roller assemblies 32, first screw 3235 and second screw 3236 are turned so that the ends of the first screw 3235 and second screw 3236 separate from the first support rod 311 and second support rod 312, respectively. Then, the two side clamping roller assemblies 32 are moved towards or away from the central clamping roller assembly 33. After reaching the predetermined position, the first screw 3235 and second screw 3236 are turned so that the ends of the first screw 3235 and second screw 3236 abut against the first support rod 311 and second support rod 312, respectively. This completes the adjustment of the distance between the two side clamping roller assemblies 32.

[0048] Furthermore, this utility model also includes an arc-shaped roller flattening mechanism 40 for flattening the substrate, and a first passing roller mechanism 50, a second passing roller mechanism 60, and a third passing roller mechanism 70 for supporting and guiding the substrate. The arc-shaped roller flattening mechanism 40 is located in front of the clamping roller flattening mechanism 30. The arc-shaped roller flattening mechanism 40 flattens the substrate to avoid wrinkles in the center of the substrate, and prevents plastic deformation of the substrate when the center of the substrate is clamped by the central clamping roller assembly 33. The first passing roller mechanism 50 is located in front of the arc-shaped roller flattening mechanism 40, the second passing roller mechanism 60 is located behind the clamping roller flattening mechanism 30, and the third passing roller mechanism 70 is located behind the frame 10.

[0049] Combination Figure 8 As shown, specifically, the arc-shaped roller flattening mechanism 40 includes two second flattening mounting plates 42 arranged left and right opposite each other and an arc-shaped roller 41. The two second flattening mounting plates 42 are respectively disposed at the top of the flattening frame 20. The two ends of the arc-shaped roller 41 are respectively connected to two angle slides 43, which are respectively disposed on two first screw slides 44. The two first screw slides 44 are respectively disposed on the inner side of two adjusting plates 45, and the two adjusting plates 45 are respectively disposed on the inner side of the two second flattening mounting plates 42. The angle slides 43 are existing manual angle slides (i.e., manual angular displacement adjustment slides), and the structure of the manual angle slides will not be described in detail here. The two angle slides are used to drive the arc-shaped roller 41 to rotate in order to adjust the angle of the arc-shaped roller 41. The first screw slide 44 is an existing manual screw slide, and its structure will not be described in detail here. The two first screw slides 44 are used to drive the two angle slides 43 to move up and down, thereby driving the arc roller 41 to move up and down to adjust the height position of the arc roller 41.

[0050] The first roller guide mechanism 50 includes two first roller guide mounting plates 52 and a first roller 51 arranged left and right opposite each other. The two first roller guide mounting plates 52 are respectively disposed at the top of the frame 10, and the first roller guide mounting plates 52 partially protrude from one side of the frame 10. The two ends of the first roller 51 are respectively rotatably disposed on the inner side of the two first roller guide mounting plates 52 through two first roller guide bearing seats. The first roller 51 is close to the end of the two first roller guide mounting plates 52 that is away from the frame 10.

[0051] The second roller mechanism 60 includes two second roller mounting plates 62 and a second roller 61 arranged opposite each other. The two second roller mounting plates 62 are respectively mounted at the top of the flattening frame 20. The two ends of the second roller 61 are rotatably mounted on the inner sides of the two second roller mounting plates 62 via two second roller bearing seats. Multiple venting grooves 611 are spaced circumferentially along the outer periphery of the second roller 61, with the length direction of the venting grooves 611 being the same as the axial direction of the second roller 61. The number of venting grooves 611 can be set according to actual conditions. When the substrate passes over the second roller 61, airflow is generated between the substrate and the second roller 61. The venting grooves 611 can achieve the function of venting, thereby preventing wrinkles from forming on the substrate.

[0052] The third roller mechanism 70 includes two third roller mounting plates 72 and a third roller 71 arranged opposite each other. The two third roller mounting plates 72 are respectively located on the other side of the frame 10. One end of the third roller 71 is rotatably mounted on the inner side of one of the third roller mounting plates 72 via a third roller bearing seat, and the other end of the third roller 71 is rotatably mounted on a second screw slide 73 via a third roller bearing seat. The second screw slide 73 is located on the inner side of the other third roller mounting plate 72. The second screw slide 73 is a conventional manual screw slide, and its structure will not be described in detail here. The second screw slide 73 is used to drive the other end of the third roller 71 to move back and forth, adjusting its position to ensure the parallelism of the third roller 71 and the second roller 61, ensuring that the substrate between the second roller 61 and the third roller 71 is vertical and preventing wrinkles from forming on the substrate.

[0053] In practical applications, in the initial state, the axial direction of the upper side clamping roller 321 and the lower side clamping roller 322 is the same as the length direction of the first support member. That is, the side clamping roller structures of the two side clamping roller assemblies 32 are not arranged in an octagonal shape. First, the angle adjustment drive 324 of the side clamping roller assembly 32 on the left drives the corresponding side clamping roller structure to rotate counterclockwise to the predetermined position, and the angle adjustment drive 324 of the side clamping roller assembly 32 on the right drives the corresponding side clamping roller structure to rotate clockwise to the predetermined position, so that the side clamping roller structures of the two side clamping roller assemblies 32 are arranged in an octagonal shape. At this time, the axial direction of the upper side clamping roller 321 and the lower side clamping roller 322 forms an angle with the belt feeding direction of the substrate. The substrate first passes over the first guide roller 51, which supports and guides the substrate. Then, the substrate passes under the arc roller 41. The arc of the arc roller 41 generates a lateral flattening force on the substrate, which flattens the substrate. Then, the substrate passes between the upper side clamping roller 321 and the lower side clamping roller 322 of the two side clamping roller assemblies 32, and between the upper center clamping roller 331 and the lower center clamping roller 332 of the center clamping roller assembly 33.After the substrate passes between the upper side clamping roller 321 and the lower side clamping roller 322 of the two side clamping roller assemblies 32 and between the upper center clamping roller 331 and the lower center clamping roller 332 of the center clamping roller assembly 33, the side drive members 326 of the two side clamping roller assemblies 32 drive the corresponding lower side clamping roller 322 to approach the corresponding upper side clamping roller 321 so that the upper side clamping roller 321 and the lower side clamping roller 322 of the two side clamping roller assemblies 32 clamp the two sides of the substrate respectively, and the center drive member... 336 drives the upper center clamping roller 331 closer to the lower center clamping roller 332 so that the upper center clamping roller 331 and the lower center clamping roller 332 clamp the center part of the substrate, and makes the clamping force of the upper center clamping roller 331 and the lower center clamping roller 332 greater than the clamping force of the upper side clamping roller 321 and the lower side clamping roller 322. At this time, static friction is generated between the upper side clamping roller 321, the lower side clamping roller 322 and the substrate. Under the action of the static friction generated between the upper side clamping roller 321, the lower side clamping roller 322 and the substrate, from The two side clamping roller assemblies 32 apply a lateral flattening force to both sides of the substrate, pulling it to move laterally. This flattens the substrate. Simultaneously, static friction is generated between the upper center clamping roller 331, the lower center clamping roller 332, and the substrate. Since the clamping force of the upper center clamping roller 331 and the lower center clamping roller 332 is greater than the clamping force of the upper side clamping roller 321 and the lower side clamping roller 332, static friction is generated between the upper center clamping roller 331, the lower center clamping roller 332, and the substrate. The force is greater than the static friction between the upper and lower side clamping rollers 321 and the substrate. Therefore, the static friction between the upper and lower center clamping rollers 331 and the substrate can isolate the flattening force applied to both sides of the substrate by the two side clamping roller assemblies 32, and it is always balanced with the flattening force on both sides of the substrate. Therefore, when the flatness of the substrate is inconsistent, causing the flattening force applied to both sides of the substrate by the two side clamping roller assemblies 32 to be unbalanced, the substrate will not deviate. Then the substrate passes over the second guide roller 61, which supports and guides the substrate. Then the substrate passes under the third guide roller 71, which supports and guides the substrate.

[0054] This invention utilizes a central clamping roller assembly 33 to clamp the center of the substrate. The clamping force of the central clamping roller assembly 33 is greater than that of the side clamping roller assemblies 32. Consequently, the static friction between the central clamping roller assembly 33 and the substrate is greater than that between the side clamping roller assemblies 32 and the substrate. Therefore, the static friction between the central clamping roller assembly 33 and the substrate can isolate the flattening forces applied to both sides of the substrate by the two side clamping roller assemblies 32, and maintain balance with the flattening forces on both sides of the substrate. Thus, when the flatness of the substrate is inconsistent, causing an imbalance in the flattening forces applied to both sides of the substrate by the two side clamping roller assemblies 32, the substrate will not deviate. This invention can prevent the substrate from deviating, thus eliminating the need to adjust the flattening force by detecting the tension of the substrate and adjusting the clamping force and angle of the upper side clamping roller 321 and lower side clamping roller 322 of the side clamping roller assembly 32 according to the tension of the substrate. Therefore, there is no need to set up a visual inspection device or tension detection device, which reduces equipment costs and is suitable for large-scale production.

[0055] This invention is also applicable to flattening thin materials such as paper.

[0056] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A center partition flattening device, comprising a frame, a flattening frame disposed at the top of the frame, and a clamping roller flattening mechanism, wherein the clamping roller flattening mechanism comprises two first flattening mounting plates arranged opposite each other to the left and right, and two side clamping roller assemblies arranged opposite each other to the left and right. The two first flattening mounting plates are respectively disposed at the top of the flattening frame and connected to each other by a first support member on their inner sides. The two side clamping roller assemblies are located between the two first flattening mounting plates and are respectively disposed on the first support member. The two side clamping roller assemblies are respectively used to clamp the two sides of the substrate, characterized in that... The clamping roller flattening mechanism further includes a central clamping roller assembly, which is located at the center between the two side clamping roller assemblies and is used to clamp the central part of the substrate. The clamping force of the central clamping roller assembly is greater than that of the side clamping roller assemblies. The central clamping roller assembly includes a central base, a central clamping roller structure, and a central drive member. The central base is disposed on the first support member. The central clamping roller structure includes an upper central clamping roller and a lower central clamping roller arranged vertically opposite each other. The lower central clamping roller is rotatably disposed at the top of the central base. The upper central clamping roller is rotatably disposed at the output end of the central drive member. The tops of the two first flattening mounting plates are connected by a second support member. The central drive member is disposed at the bottom end of the second support member. The central drive member is used to drive the upper central clamping roller to move closer to or away from the lower central clamping roller.

2. The center partition flattening device of claim 1, wherein, The top of the central base is provided with a first U-shaped base with the opening facing upward. The two ends of the lower central clamping roller are respectively rotatably disposed on the inner walls of the two ends of the first U-shaped base, and the lower central clamping roller extends out from the opening of the first U-shaped base. The output end of the central drive member is provided with a second U-shaped base with the opening facing downward. The two ends of the upper central clamping roller are respectively rotatably disposed on the inner walls of the two ends of the second U-shaped base, and the upper central clamping roller extends out from the opening of the second U-shaped base.

3. The center partition flattening device of claim 1, wherein, The side clamping roller assembly includes a side base, an angle adjustment drive, a vertical plate, a side drive, a transmission shaft, a side clamping roller structure, and a connecting seat. The side base is mounted on the first support member. The angle adjustment drive is located at the top of the side base. The vertical plate is located above and connected to the angle adjustment drive. The side drive is located on the side of the vertical plate away from the central clamping roller assembly. The transmission shaft passes through the vertical plate and is rotatable relative to the vertical plate. The transmission shaft is located in front of the side drive. The output end of the side drive is rotatably connected to one end of the connecting arm, and the other end of the connecting arm is connected to the... One end of the drive shaft is connected to the side clamping roller structure located between the vertical plate and the central clamping roller assembly. The side clamping roller structures of the two side clamping roller assemblies are arranged in a figure-eight shape. The side clamping roller structure includes an upper side clamping roller and a lower side clamping roller arranged opposite each other. One end of the upper side clamping roller is rotatably disposed on the side of the vertical plate near the central clamping roller assembly. The other end of the upper side clamping roller extends toward the direction near the central clamping roller assembly. The connecting seat is located behind the drive shaft and connected to the drive shaft. The two ends of the lower side clamping roller are rotatably disposed on the inner walls of the two ends of the connecting seat, and the lower side clamping roller portion protrudes from the top of the connecting seat.

4. The center partition flattening device of claim 3, wherein, Both the lateral drive and the central drive are pneumatic or hydraulic cylinders, and the angle adjustment drive is an electric rotary platform.

5. The center partition flattening device according to claim 3, characterized in that, The first support member includes at least two support rods, which are arranged side by side in front of and behind each other. The two support rods are the first support rod and the second support rod, respectively. The side base is provided with a first through hole and a second through hole corresponding to the first support rod and the second support rod, respectively. The side base is slidably sleeved on the outer periphery of the first support rod and the second support rod through the first through hole and the second through hole. The side base can move left and right along the first support rod and the second support rod. The central base is provided with a third through hole and a fourth through hole corresponding to the first support rod and the second support rod, respectively. The central base is slidably sleeved on the outer periphery of the first support rod and the second support rod through the third through hole and the fourth through hole. The central base can move left and right along the first support rod and the second support rod.

6. The center partition flattening device of claim 5, wherein, A first linear bearing is provided in the first through hole and is sleeved on the outer periphery of the first support rod. A second linear bearing is provided in the second through hole and is sleeved on the outer periphery of the second support rod.

7. The center partition flattening device of claim 6, wherein, One side of the side base is provided with two first threaded holes communicating with the first through hole. The first linear bearing is located between the two first threaded holes. Two first screws are threadedly connected to the two first threaded holes respectively, and the ends of the two first screws extend into the first through hole and abut against the first support rod respectively. The other side of the side base is provided with two second threaded holes communicating with the second through hole. The second linear bearing is located between the two second threaded holes. Two second screws are threadedly connected to the two second threaded holes respectively, and the ends of the two second screws extend into the second through hole and abut against the second support rod respectively. One side of the central base is provided with a third threaded hole that communicates with the third through hole. A third screw is threadedly connected to the third threaded hole, and the end of the third screw extends into the third through hole and abuts against the first support rod. The other side of the central base is provided with a fourth threaded hole that communicates with the fourth through hole. A fourth screw is threadedly connected to the fourth threaded hole, and the end of the fourth screw extends into the fourth through hole and abuts against the second support rod.

8. The center partition flattening device of claim 1, wherein, It also includes an arc-shaped roller flattening mechanism located in front of the clamping roller flattening mechanism. The arc-shaped roller flattening mechanism includes two second flattening mounting plates arranged in a left-right opposite manner and an arc-shaped roller. The two second flattening mounting plates are respectively located at the top of the flattening frame. The two ends of the arc-shaped roller are respectively connected to two angle slides. The two angle slides are respectively located on two first screw slides. The two first screw slides are respectively located on the inner side of two adjusting plates. The two adjusting plates are respectively located on the inner side of two second flattening mounting plates.

9. The center partition flattening device of claim 8, wherein, It also includes a first roller-passing mechanism, a second roller-passing mechanism, and a third roller-passing mechanism; The first roller passing mechanism is located in front of the arc-shaped roller flattening mechanism. The first roller passing mechanism includes two first roller passing mounting plates and a first roller arranged in a left-right opposite manner. The two first roller passing mounting plates are respectively arranged at the top of the frame and the first roller passing mounting plates protrude from one side of the frame. The two ends of the first roller are respectively rotatably arranged on the inner side of the two first roller passing mounting plates. The second roller passing mechanism is located behind the clamping roller flattening mechanism. The second roller passing mechanism includes two second roller passing mounting plates and a second roller arranged in a left-right opposite manner. The two second roller passing mounting plates are respectively disposed at the top of the flattening frame. The two ends of the second roller are respectively rotatably disposed on the inner side of the two second roller passing mounting plates. The outer circumferential surface of the second roller is provided with a plurality of exhaust grooves spaced apart along the circumferential direction. The length direction of the exhaust grooves is the same as the axial direction of the second roller. The third roller mechanism is located at the rear of the frame. The third roller mechanism includes two third roller mounting plates and a third roller arranged opposite each other. The two third roller mounting plates are respectively arranged on the other side of the frame. One end of the third roller is rotatably arranged inside one of the third roller mounting plates, and the other end of the third roller is rotatably arranged on a second screw slide. The second screw slide is arranged inside the other third roller mounting plate.

10. The center partition flattening device of claim 1, wherein, The top of the flattening frame is provided with two first fixing plates arranged opposite each other. The first fixing plates are provided with first strip holes extending along their height direction. Two second fixing plates are provided on the outer sides of the two first flattening mounting plates respectively. The two second fixing plates correspond to the two first fixing plates and are respectively attached to the outer sides of the two first fixing plates. The second fixing plates are provided with second strip holes extending along their length direction. Connecting fasteners are installed in the second strip holes of the second fixing plates and the corresponding first strip holes of the first fixing plates.

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