Low-tension leather rolling-out machine
By using synchronous transmission and pneumatic driving devices of the driving wheel and driven wheel in the winding machine, the problem of roll rate deviation during rolling and rolling is solved, and the uniform tension and flat rolling of the roll is achieved, avoiding the Deformation and stacking issues.
Patent Information
- Application Number
- CN202421206828.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During the rolling and rolling process of existing rolling machines, the lack of linkage relationship leads to a deviation in the rolling rate, which may cause deformation, damage or stacking creases of the roll.
A low-tension leather winding machine is designed, which uses the driving wheel and the driven wheel to drive each other, and assists the driving through the shaft support and the slider to ensure that the material roll is in contact with the arc surface of the driving wheel and the driven wheel in synchronous contact, and is driven by the pneumatic pressure device. and locking wheels achieve uniform tension, preventing rolls from being pulled and stacked.
It effectively avoids deformation and stacking problems caused by uneven tension during rolling out, ensures the flatness and stability of the roll, and improves the roll change efficiency and coating efficiency.
Smart Images
Figure CN222361699U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of roll-out machines, and in particular relates to a low-tension leather roll-out machine. Background Art
[0002] The unwinder, also known as the uncoiler, has two main functions: one is to drive the coil to rotate; the other is to tension the coil. The tension is usually achieved by the oil cylinder or air cylinder installed together with the main shaft to push the inclined slide block. Small units often use air cylinders, and large units often use oil cylinders. The rotation is usually achieved by the motor driving the main shaft to rotate through the reducer.
[0003] Patent CN220763562U discloses a coating device for alloy steel processing, including a roll-out mechanism for rolling out alloy steel plates, the roll-out mechanism includes a support platform, the top of the support platform is fixedly connected to two fixed seats, one side of the roll-out mechanism is provided with a roll-in mechanism for rolling in the coated alloy steel plate, and a processing mechanism for double-sided coating of the alloy steel plate is provided between the roll-out mechanism and the roll-in mechanism. The utility model enables the device to simultaneously coat both sides of the alloy steel plate by setting a processing mechanism, and the alloy steel plate passes through the processing mechanism by cooperating with the roll-in wheel and the roll-out wheel. When the alloy steel plate passes between the upper partition and the lower partition, the coating reel a and the coating reel b simultaneously coat both sides of the alloy steel plate in the middle, saving time and labor, and improving the coating efficiency of alloy steel processing.
[0004] In the above scheme, the unwinding wheel lacks a linkage relationship with the smoothing wheel or the winding wheel, which is likely to cause deviations in the winding and unwinding rates of the material roll. When the winding rate is greater than the unwinding rate, the unwinding material roll will be greatly pulled by the smoothing wheel, which may easily cause deformation and damage to the material roll, and when the unwinding rate is greater than the winding rate, the unwinding material roll is likely to be stacked and creased at the smoothing wheel. Utility Model Content
[0005] The purpose of the utility model is to provide a low-tension leather rolling machine that can solve the above technical problems.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A low-tension leather unwinding machine comprises a machine frame, on which a driving wheel and a driven wheel which are rotatably connected to each other are rotatably arranged, a locking wheel which can abut against the driving wheel is arranged on one side of the driving wheel, and a winding assembly is also movably arranged on the machine frame, and the winding assembly is located at a position at the same distance from the arc surface of the driving wheel and the driven wheel.
[0008] In the low-tension leather unwinding machine, the coil assembly includes a shaft support and a first slider. The shaft support is mounted on the first slider and moves on the machine frame with the first slider. The axis center of the shaft support cavity has the same arc distance to the driving wheel and the driven wheel.
[0009] In the low-tension leather unwinding machine, the driving wheel and the driven wheel have the same circular diameter and are connected by a transmission wheel, and the axis of the bearing support cavity moves on the symmetry line of the driving wheel and the driven wheel.
[0010] In the low-tension leather unwinding machine, a first slide rail is arranged on the machine body frame, the first slider is slidably arranged on the first slide rail, a pull rod is arranged along the direction of the first slide rail, and one end of the pull rod is connected to the shaft support.
[0011] In the low-tension leather unwinding machine, a pneumatic drive device is provided at the other end of the pull rod, and the pneumatic drive device makes the shaft support approach one side of the driving wheel and the driven wheel.
[0012] In the low-tension leather unwinding machine, a bearing is arranged in the supporting cavity of the shaft support, and the bearing is fixed by a bolt threadedly connected to the shaft support. A material roll roller is inserted in the bearing, and the arc surface distance from the material roll roller to the driving wheel and the driven wheel is the same.
[0013] In the low-tension leather unwinding machine, a second slide rail is provided on the machine body frame, a second slider is provided on the second slide rail, and the locking wheel is fixedly provided on the second slider.
[0014] In the low-tension leather unwinding machine, the driving wheel is transmission-connected to a driving motor arranged on the machine frame, and a start-stop sensor is arranged on the driving motor. The detection area of the start-stop sensor covers one end of the second slide rail close to the driving wheel.
[0015] In the low-tension leather unwinding machine, a material roll channel is provided between the driving wheel and the driven wheel. The material roll channel enters from the side of the driven wheel close to the material roll assembly, passes through the gap between the driving wheel and the driven wheel, and comes between the driving wheel and the locking wheel.
[0016] In the low-tension leather unwinding machine, two transition wheels are arranged on the machine frame, and the material roll channel passing through the driving wheel then passes around the two transition wheels in sequence in different clockwise directions.
[0017] The advantages of the utility model are:
[0018] The coil assembly has a slide rail and a pull rod for auxiliary driving. The shaft support can move on a straight line with the same distance between the driving wheel and the driven wheel arc surface, so that the material coil can contact the arc surface of the driving wheel and the driven wheel at the same time. Under the drive of the driving wheel, the three can rotate synchronously to ensure that the unrolled material coil will not be pulled and damaged and deformed while maintaining a certain tension.
[0019] A locking wheel driven by an air pump is arranged on one side of the driving wheel. When the material roll is replaced, the locking wheel abuts against the arc surface of the driving wheel, preventing the driving wheel from rotating while fixing the rolled material flatly at the contact point between the two. In cooperation with the subsequent material storage equipment, the flatness of the material after the roll change and splicing is ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] Figure 2 It is a schematic diagram of the linkage structure of the components of the utility model.
[0022] Figure 3 This is a schematic diagram of the locking structure of the utility model.
[0023] Figure 4 This is a schematic diagram of the coil assembly structure of the utility model.
[0024] Figure 5 This is a schematic diagram of the material roll channel structure of the utility model.
[0025] In the figure, the body frame 1, the driving wheel 11, the driven wheel 12, the transmission wheel 13, the driving motor 14, the start-stop sensor 15, the transition wheel 16, the locking wheel 2, the second slide rail 21, the second slider 22, the coil assembly 3, the shaft support 31, the first slider 32, the first slide rail 33, and the pull rod 34. DETAILED DESCRIPTION
[0026] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.
[0027] Example 1
[0028] like Figure 1-Figure 4 As shown, the low-tension leather unwinding machine includes a body frame 1, on which a driving wheel 11 and a driven wheel 12 which are rotatably connected to each other are rotatably arranged, a locking wheel 2 which can abut against the driving wheel 11 is arranged on one side of the driving wheel 11, and a winding assembly 3 is also movably arranged on the body frame 1, and the winding assembly 3 is located at a position at the same distance from the arc surface of the driving wheel 11 and the driven wheel 12.
[0029] That is, the coil assembly 3 moves on a straight line at the same distance from the arc surface of the driving wheel 11 and the driven wheel 12, so that the material roll can contact the arc surface of the driving wheel 11 and the driven wheel 12 at the same time. Driven by the driving wheel, the three can rotate synchronously, ensuring that the unrolled material roll will not be pulled and damaged or deformed while maintaining a certain tension.
[0030] In this embodiment, the coil assembly 3 includes a shaft support 31 and a first slider 32. The shaft support 31 is mounted on the first slider 32 and moves on the body frame 1 with the first slider 32. The shaft support 31 supports the same arc distance from the axis of the cavity to the driving wheel 11 and the driven wheel 12.
[0031] Preferably, the driving wheel 11 and the driven wheel 12 have the same diameter and are connected by the transmission wheel 13 , and the axis of the bearing 31 supports the concave cavity to move on the symmetry line of the driving wheel 11 and the driven wheel 12 .
[0032] Because the driving wheel 11 and the driven wheel 12 are the same size, the moving trajectory of the shaft support 31 can only be on the symmetry line of the two wheels, so that the driving wheel 11 and the driven wheel 12 are also symmetrically against the material roll, and the pressure between the three is relatively balanced, preventing the material roll from being deformed due to excessive pressure on one side.
[0033] In this embodiment, a first slide rail 33 is provided on the machine frame 1 , a first slider 32 is slidably provided on the first slide rail 33 , a pull rod 34 is provided along the direction of the first slide rail 33 , and one end of the pull rod 34 is connected to the shaft support 31 .
[0034] As the material is discharged, the diameter of the material roll will gradually decrease. In order to contact the driving wheel 11 and the driven wheel 12, the shaft support 31 needs to slowly approach the driving wheel 11 and the driven wheel 12 at the rate of discharge, and the first slide rail 33 provides an accurate motion track for the movement of the shaft support 31.
[0035] Preferably, a pneumatic drive device is provided at the other end of the pull rod 34 , and the pneumatic drive device causes the shaft support 31 to approach one side of the driving wheel 11 and the driven wheel 12 .
[0036] The pressure value of the air pump is set so that the pull rod 34 maintains the same pulling force to make the material roll in the shaft support 31 abut against the driving wheel 11 and the driven wheel 12. The position change of the shaft support 31 offsets the decrease in the diameter of the material roll, so that the material has a uniform rolling-out pulling force.
[0037] Preferably, a bearing is provided in the supporting cavity of the shaft support 31, and the bearing is fixed by a bolt threadedly connected to the shaft support 31. A material roll roller is inserted into the bearing, and the arc surface distance from the material roll roller to the driving wheel 11 and the driven wheel 12 is the same.
[0038] The bearings are installed at both ends of the roll roller. The bearings and roll roller can be installed and removed together with the roll, which can greatly improve the efficiency of the roll changing process. Before changing the roll, first put the roll into the roller and then install the bearings at both ends. After the roll on the equipment is completely emptied, it can be directly replaced.
[0039] In this embodiment, a second slide rail 21 is provided on the machine body frame 1 , a second slider 22 is provided on the second slide rail 21 , and the locking wheel 2 is fixedly provided on the second slider 22 .
[0040] The locking wheel 2 needs to clamp the tail section of the material roll together with the driving wheel 11, so the locking wheel 2 can only be fixed on the second slider 22. When the second slider 22 is pushed, the second slide rail 21 can maintain the extrusion direction of the driving wheel 11, so that each point of the linear contact surface between the arc surfaces is evenly pressed.
[0041] Preferably, the driving wheel 11 is transmission-connected to a driving motor 14 disposed on the machine frame 1 , and a start-stop sensor 15 is disposed on the driving motor 14 . The detection area of the start-stop sensor 15 covers one end of the second slide rail 21 close to the driving wheel 11 .
[0042] When the second slider 22 is pushed toward the driving wheel 11, the start-stop sensor 15 will detect the passing of the second slider 22 and then stop the operation of the driving motor 14. The power of the driving motor 14 is output after being reduced in speed by the reducer. After stopping operation, the output end will be locked at the current position. The driving wheel 11 that cannot rotate can also fix and clamp the material roll with the locking wheel 2. The fixed material roll is more convenient for splicing the new material roll after replacement with the front material end.
[0043] Example 2
[0044] like Figure 5 As shown, based on the arrangement of the various components in Implementation 1, a route for the material roll to run on the equipment is designed, and the material roll channel enters from the side of the driven wheel 12 close to the coil assembly 3, passes through the gap between the driving wheel 11 and the driven wheel 12, and comes between the driving wheel 11 and the locking wheel 2.
[0045] The material roll is passed through multiple rotating wheels in a clockwise and counterclockwise direction, and the material roll is subjected to a certain tension so that it can maintain a flat and unrolled state. Especially at the driving wheel 11 and the driven wheel 12, the material roll, the driving wheel 11 and the driven wheel 12 are kept at the same linear speed by abutting against each other and rotating together, so as to ensure that the unwinding and passing of the material roll have the same speed, and prevent the speed difference between the wheels from causing the material roll to loosen and fold.
[0046] In this embodiment, two transition wheels 16 are arranged on the machine frame 1. The material roll passage through the driving wheel 11 then passes around the two transition wheels 16 in turn in different clockwise directions and is then connected to the subsequent material storage rack.
[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A low tension leather unwinding machine, comprising a machine frame (1), characterized in that: A driving wheel (11) and a driven wheel (12) which are rotatably connected to each other are provided on the machine frame (1); a locking wheel (2) which can abut against the driving wheel (11) is provided on one side of the driving wheel (11); a material coiling assembly (3) is also movably provided on the machine frame (1); the material coiling assembly (3) is located at a position at the same distance from the arc surface of the driving wheel (11) and the driven wheel (12).
2. The low tension leather unwinding machine according to claim 1, characterized in that: The coil assembly (3) comprises a shaft support (31) and a first slider (32); the shaft support (31) is mounted on the first slider (32) and moves on the machine frame (1) along with the first slider (32); the arc distances from the axis of the supporting cavity of the shaft support (31) to the driving wheel (11) and the driven wheel (12) are the same.
3. The low tension leather unwinding machine according to claim 2, characterized in that: The driving wheel (11) and the driven wheel (12) have the same circular diameter and are connected by a transmission wheel (13); the axis of the shaft support (31) supporting the concave cavity moves on the symmetry line of the driving wheel (11) and the driven wheel (12).
4. The low tension leather unwinding machine according to claim 2, characterized in that: A first slide rail (33) is provided on the machine body frame (1), the first sliding block (32) is slidably provided on the first slide rail (33), a pull rod (34) is provided along the direction of the first slide rail (33), and one end of the pull rod (34) is connected to the shaft support (31).
5. The low tension leather unwinding machine according to claim 4, characterized in that: The other end of the pull rod (34) is provided with a pneumatic drive device, and the pneumatic drive device causes the shaft support (31) to approach one side of the driving wheel (11) and the driven wheel (12).
6. The low tension leather unwinding machine according to claim 4, characterized in that: A bearing is arranged in the supporting cavity of the shaft support (31), the bearing is fixed against the shaft support (31) by a bolt threadedly connected to the shaft support (31), a material roll roller is inserted into the bearing, and the arc distances from the material roll roller to the driving wheel (11) and the driven wheel (12) are the same.
7. The low tension leather unwinding machine according to claim 1, characterized in that: A second slide rail (21) is provided on the machine body frame (1), a second slide block (22) is provided on the second slide rail (21), and the locking wheel (2) is fixedly arranged on the second slide block (22).
8. The low tension leather unwinding machine according to claim 7, characterized in that: The driving wheel (11) is drivingly connected to a driving motor (14) arranged on the machine body frame (1), and a start / stop sensor (15) is arranged on the driving motor (14). The detection area of the start / stop sensor (15) covers one end of the second slide rail (21) close to the driving wheel (11).
9. The low tension leather unwinding machine according to claim 1, characterized in that: A material roll channel is provided between the driving wheel (11) and the driven wheel (12); the material roll channel enters from the side of the driven wheel (12) close to the material roll assembly (3), passes through the gap between the driving wheel (11) and the driven wheel (12), and then arrives between the driving wheel (11) and the locking wheel (2).
10. The low tension leather unwinding machine according to claim 9, characterized in that: Two transition wheels (16) are arranged on the machine body frame (1), and the material roll passage passing through the driving wheel (11) passes around the two transition wheels (16) in sequence in different clockwise directions.