Integral deviation type double position unwinding device

Abstract

The application discloses a whole deviation rectifying double-station unwinding device, which comprises an unwinding mechanism, a deviation rectifying mechanism, a tension controller and a rubber roller pressing mechanism. The unwinding mechanism comprises an unwinding rack capable of moving in the left-right direction and a pair of unwinding assemblies oppositely arranged on the unwinding rack. Each unwinding assembly comprises an air expansion shaft rotatably arranged on the unwinding rack and a magnetic powder brake in transmission connection with the air expansion shaft. The unwinding rack comprises a plurality of transition aluminum rollers in parallel with the air expansion shaft. The deviation rectifying mechanism comprises a deviation rectifying executor for driving the unwinding rack to move in the left-right direction. The tension controller is in signal connection with the magnetic powder brake. The rubber roller pressing mechanism comprises a pressing roller and a pair of swing air cylinders. The pair of swing air cylinders synchronously drive the pressing roller to swing so as to press the product between the pressing roller and the adjacent transition aluminum roller. The application realizes continuous unwinding through the double-station unwinding. The flexible deviation rectifying mechanism and the rubber roller pressing mechanism ensure that the output product will not have greater fluctuation due to the change of tension.

Description

Technical Field

[0001] This application relates to the field of roll unwinding equipment technology, and in particular to an integrated correction type dual-station unwinding device. Background Technology

[0002] On a coil processing production line, the unwinding device is one of the key pieces of equipment used to unwind coiled products. Currently, most unwinding devices in China adopt a passive unwinding method, requiring sufficient traction from the preceding stage to ensure unwinding. The traction force from the preceding stage may be affected to varying degrees during transmission, resulting in inconsistent tension in the lateral position, making it difficult to guarantee the quality of the product. For some elastic products, unwinding in this way may lead to wrinkles and other defects in the produced products. Furthermore, traditional unwinding devices are unable to correct deviations in the unwound product during the unwinding process. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide an integrated double-station unwinding device with high roll changing efficiency, flexible correction, and high unwinding quality.

[0004] To achieve the above objectives, this application adopts the following technical solution: an integral correction type dual-station unwinding device, comprising:

[0005] The unwinding mechanism includes an unwinding frame movable in a left-right direction and a pair of unwinding assemblies mounted opposite each other on the unwinding frame. Each unwinding assembly includes an air shaft rotatably mounted on the unwinding frame and a magnetic powder brake drivenly connected to the air shaft. The axis of the air shaft extends in a left-right direction, and the magnetic powder brake drives the air shaft to rotate about its own axis. The unwinding frame includes a plurality of transition aluminum rollers parallel to the air shaft, and the plurality of transition aluminum rollers are arranged at intervals from front to back below the pair of unwinding assemblies.

[0006] The correction mechanism includes a correction actuator that is connected to the unwinding frame in a transmission manner, and the correction actuator is used to drive the unwinding frame to move in the left and right directions.

[0007] A tension controller, mounted on the unwinding frame and located between the pair of unwinding assemblies, is signal-connected to the magnetic powder brake; and

[0008] The rubber roller pressing mechanism includes a pressure roller parallel to the air expansion shaft and a pair of swing cylinders driven by the pressure roller. The pair of swing cylinders are used to synchronously drive the pressure roller to swing towards the adjacent transition aluminum roller to press the product between the pressure roller and the transition aluminum roller.

[0009] In the above technical solution, a further preferred embodiment is that the unwinding frame includes a base and a pair of unwinding wall panels, which are mounted on the base from left to right opposite each other.

[0010] In the above technical solution, it is further preferred that each of the unrolling wall panels and the base is connected by at least one pair of triangular plates, and the at least one pair of triangular plates are arranged at intervals in the front-back direction.

[0011] In the above technical solution, a further preferred embodiment is that the bottom of the base is equipped with a plurality of sliding components, which are arranged in pairs at intervals along the left and right direction on the bottom of the base. Each pair of sliding components is arranged opposite to each other. Each sliding component includes a base plate installed on the ground, a linear guide rail extending in the left and right direction, and a linear slider that slides with the linear guide rail. The linear guide rail is installed on the corresponding base plate, and the linear slider is installed on the bottom of the base.

[0012] In the above technical solution, it is further preferred that each of the unwinding components includes a pair of safety chucks arranged opposite each other on the left and right sides, the pair of safety chucks are respectively installed on the pair of unwinding wall plates, the two ends of each of the air expansion shafts are respectively inserted into the pair of safety chucks, and one of the safety chucks is connected to the corresponding magnetic powder brake.

[0013] In the above technical solution, it is further preferred that the correction actuator is arranged on the left or right side of the base and connected to the middle of the left end or the middle of the right end of the base.

[0014] In the above technical solution, it is further preferred that the plurality of transition aluminum rollers are located on the front side of the rubber roller pressing mechanism and are rotatably installed between the pair of unrolling wall plates, with each of the transition aluminum rollers located on the upper side of the front transition aluminum roller.

[0015] In the above technical solution, a further preferred embodiment is that the rubber roller pressing mechanism further includes a pair of rocker arms, which are respectively connected between the pair of swing cylinders and the pressure roller. One end of each rocker arm is rotatably connected to the unwinding wall plate on the corresponding side via a pin, and the other end is drively connected to the end of the pressure roller. Each swing cylinder is connected to the middle of the corresponding rocker arm to drive the rocker arm to rotate around the pin.

[0016] In the above technical solution, a further preferred embodiment is that the correction mechanism further includes a correction sensor that is signal-connected to the correction actuator, and the correction sensor is installed at the front end of the unwinding frame.

[0017] In the above technical solution, it is further preferred that the correction actuator is a linear cylinder.

[0018] Compared with the prior art, this application achieves the following beneficial effects:

[0019] This application adopts a dual-station unwinding mechanism, which can realize continuous unwinding and improve production efficiency. The unwinding frame is flexibly corrected in a timely manner through a correction mechanism, thereby ensuring the stability of product unwinding. The rubber roller pressing mechanism ensures that the output product will not have greater fluctuations due to tension changes, thereby improving the final product quality. Attached Figure Description

[0020] Figure 1 A front view of an integrated web-correcting dual-station unwinding device provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 Side view of the dual-station unwinding device.

[0022] The components are as follows: 100. Dual-station unwinding device; 10. Unwinding mechanism; 1. Unwinding frame; 11. Base; 12. Unwinding wall panel; 13. Triangular plate; 14. Transition aluminum roller; 2. Unwinding assembly; 21. Air shaft; 22. Magnetic powder brake; 23. Safety chuck; 20. Correction mechanism; 3. Sliding assembly; 31. Base plate; 32. Linear guide rail; 33. Linear slider; 4. Correction actuator; 30. Tension controller; 40. Rubber roller pressing mechanism; 5. Pressure roller; 6. Swing cylinder; 7. Rocker arm; 8. Pin. Detailed Implementation

[0023] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0024] This application provides an integrated correction type dual-station unwinding device. The dual-station unwinding device uses two stations to alternately unwind, realizing unwinding without stopping the machine, thereby improving the unwinding efficiency and the roll changing efficiency.

[0025] like Figure 1 ,2 As shown, the dual-station unwinding device 100 includes an unwinding mechanism 10, a correction mechanism 20, a tension controller 30, and a rubber roller pressing mechanism 40.

[0026] The unwinding mechanism 10 includes an unwinding frame 1 capable of moving in the left-right direction and a pair of unwinding assemblies 2 mounted opposite each other on the unwinding frame 1. The unwinding frame 1 includes a base 11 and a pair of unwinding wall plates 12, which are mounted opposite each other on the base 11. At least one pair of triangular plates 13 are also connected between each unwinding wall plate 12 and the base 11. The at least one pair of triangular plates 13 are spaced apart in the front-back direction. The triangular plates 13 are used to strengthen the connection between each unwinding wall plate 12 and the base 11, keep each unwinding wall plate 12 in a position perpendicular to the base 11, and further enhance the load-bearing capacity of the entire unwinding frame 1.

[0027] Each unwinding assembly 2 includes an air shaft 21 rotatably mounted between a pair of unwinding wall plates 12 and a magnetic powder brake 22 drivenly connected to the air shaft 21. The axis X1 of the air shaft 21 extends in the left-right direction, and the magnetic powder brake 22 is used to drive the air shaft 21 to rotate around its own axis X1, thereby realizing the active unwinding of the roll material.

[0028] Each unwinding assembly 2 also includes a pair of safety chucks 23 arranged opposite each other on the left and right. The pair of mounting chucks 23 are respectively fixedly mounted on a pair of unwinding wall plates 12, and both mounting chucks 23 rotate around the axis X1. The two ends of each air shaft 21 are respectively inserted into the pair of safety chucks 23, and one of the safety chucks 23 is connected to the corresponding magnetic powder brake 22. When the magnetic powder brake 22 is activated, the safety chuck 23 connected to the magnetic powder brake 22 drives the inserted air shaft 21 to rotate around the axis X1. The pair of safety chucks 23 facilitates the replacement of the air shafts 21 by the operator, effectively improving the roll changing efficiency. The alternating unwinding of the air shafts 21 in the pair of unwinding assemblies 2 enables continuous unwinding, improving production efficiency.

[0029] Between a pair of unwinding wall plates 12, a plurality of transition aluminum rollers 14 parallel to the air expansion shaft 21 are rotatably mounted. The plurality of transition aluminum rollers 14 are arranged below the front unwinding assembly 2. The plurality of transition aluminum rollers 14 are rotatably mounted between a pair of unwinding wall plates 12. Each transition aluminum roller 14 is located above the front transition aluminum roller 14. The products unwound by each unwinding assembly 2 pass around the plurality of transition aluminum rollers 14 from back to front to be unwound from the front end of the unwinding frame 1.

[0030] The correction mechanism 20 includes multiple sliding components 3 mounted on the bottom of the base 11, a correction actuator 4 connected to the unwinding frame 1, and a correction sensor (not shown in the figure) connected to the correction actuator 4 by signal.

[0031] Multiple sliding components 3 are arranged in pairs at intervals along the left-right direction on the bottom of the base 11. Each pair of sliding components 3 is arranged opposite each other to ensure that the base 11 can move smoothly left and right. Each sliding component 3 includes a base plate 31 installed on the ground, a linear guide rail 32 extending in the left-right direction, and a linear slider 33 that slides with the linear guide rail 32. The linear guide rail 32 is installed on the corresponding base plate 31, and the linear slider 33 is installed on the bottom of the base 11. The unwinding frame 1 can move smoothly back and forth in the left-right direction through the multiple sliding components 3.

[0032] The correction actuator 4 is arranged on the left or right side of the base 11 and is used to drive the unwinding frame 1 to slide in the left and right directions through multiple sliding components 3. The correction actuator 4 is connected to the middle of the left end or the middle of the right end of the base 11, thereby ensuring that the entire unwinding frame 1 maintains parallel left and right movement. In this embodiment, the correction actuator is a linear cylinder, and the correction actuator 4 is connected to the correction sensor signal so as to respond to the correction sensor in a timely manner and drive the base 11 to move quickly and stably.

[0033] The correction sensor is installed at the front end of a pair of unwinding wall plates 12 to detect the position of the unwound product in the left and right directions of each unwinding assembly 2, and feeds back the detection result to the correction actuator 4. The correction actuator 4 drives the entire unwinding frame 1 to move in the left and right directions according to the feedback result to achieve overall correction and ensure the unwinding quality.

[0034] The tension controller 30 is installed on the unwinding frame 1 and located between a pair of unwinding components 2. The tension controller 30 is connected to the magnetic powder brake 22 of each unwinding component 2. The tension controller 30 is used to detect the tension of the product unwound by each unwinding component 2 and feeds back the detection result to the corresponding magnetic powder brake 22. Each magnetic powder brake 22 controls the rotation of the corresponding air shaft 21 according to the feedback result, thereby ensuring constant tension unwinding of the product and preventing the product from being torn or deformed.

[0035] The rubber roller pressing mechanism 40 is arranged below a pair of unwinding assemblies 2 and behind a plurality of transition aluminum rollers 14. The rubber roller pressing mechanism 40 includes a pressure roller 5 parallel to the air expansion shaft 21 and a pair of swing cylinders 6 drivenly connected to the pressure roller 5. The pair of swing cylinders 6 are used to synchronously drive the pressure roller 5 to swing towards the rearmost transition aluminum roller 14 to press the product between the pressure roller 5 and the transition aluminum roller 14, thereby ensuring that the product wound onto the transition aluminum roller 14 does not fluctuate excessively due to changes in unwinding tension.

[0036] The rubber roller pressing mechanism 40 also includes a pair of rocker arms 7, which are respectively connected between a pair of swing cylinders 6 and the pressure roller 5. One end of each rocker arm 7 is rotatably connected to the unwinding wall plate 12 on the corresponding side via a pin 8, and the other end is drivenly connected to the end of the pressure roller 5. Each swing cylinder 6 is connected to the middle of the corresponding rocker arm 7 to drive the rocker arm 7 to rotate around the pin 8, thereby realizing the pressing and releasing of the product and effectively ensuring the unwinding quality of the product.

[0037] In this application, during unwinding, the air-expansion shaft 21 with the wound material engages with the corresponding safety chuck 23. Driven by the magnetic powder brake 22, the air-expansion shaft 21 rotates to achieve unwinding. The magnetic powder brake 22 maintains stable tension during unwinding through tension detection by the tension controller 30. A deviation correction sensor detects the position of the product winding from multiple transition aluminum rollers 14 in real time. When the product deviates from its designated path, the deviation correction actuator 4 drives the unwinding frame 1 to move in the left-right direction to achieve overall deviation correction. The rubber roller pressing mechanism 40 drives the swing arm 5 to swing via the swing cylinder 6, causing the pressure roller 5 to press the product firmly onto the corresponding transition aluminum roller 14, ensuring the stability of product transmission.

[0038] The roll material is mounted on the air shaft 21. The magnetic powder brake 22 drives the air shaft 21 to rotate via the safety chuck 23, thus achieving unwinding. The tension controller 30 controls the braking force of the magnetic powder brake 22 based on the roll material tension signal to maintain stable tension. The deviation sensor detects the roll material position. When the roll material deviates, the deviation actuator 4 drives the unwinding frame to move in the left and right directions to achieve overall deviation correction. The rubber roller pressing mechanism drives the rocker arm 7 to swing via the swing cylinder 6, pressing the pressure roller 5 against the transition aluminum roller 14, pressing the product between them, and ensuring stable product transmission.

[0039] This application adopts a dual-station unwinding mechanism, which can realize continuous unwinding and improve production efficiency. The unwinding frame is flexibly corrected in a timely manner through a correction mechanism, thereby ensuring the stability of product unwinding. The rubber roller pressing mechanism ensures that the output product will not fluctuate more due to tension changes, thereby improving the final product quality.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A dual-station unwinding device with overall web-correcting properties, characterized in that, include: The unwinding mechanism includes an unwinding frame movable in a left-right direction and a pair of unwinding assemblies mounted opposite each other on the unwinding frame. Each unwinding assembly includes an air shaft rotatably mounted on the unwinding frame and a magnetic powder brake drivenly connected to the air shaft. The axis of the air shaft extends in a left-right direction, and the magnetic powder brake drives the air shaft to rotate about its own axis. The unwinding frame includes a plurality of transition aluminum rollers parallel to the air shaft, and the plurality of transition aluminum rollers are arranged at intervals from front to back below the pair of unwinding assemblies. The correction mechanism includes a correction actuator that is connected to the unwinding frame in a transmission manner, and the correction actuator is used to drive the unwinding frame to move in the left and right directions. A tension controller is installed on the unwinding frame and located between the pair of unwinding assemblies, and the tension controller is signal-connected to the magnetic powder brake. and The rubber roller pressing mechanism includes a pressure roller parallel to the air expansion shaft and a pair of swing cylinders driven by the pressure roller. The pair of swing cylinders are used to synchronously drive the pressure roller to swing towards the adjacent transition aluminum roller to press the product between the pressure roller and the transition aluminum roller.

2. The dual-station unwinding device according to claim 1, characterized in that, The unwinding frame includes a base and a pair of unwinding wall panels, which are mounted on the base from left to right opposite each other.

3. The dual-station unwinding device according to claim 2, characterized in that, Each of the aforementioned roll-up wall panels is further connected to the base by at least one pair of triangular plates, which are arranged at intervals along the front-to-back direction.

4. The dual-station unwinding device according to claim 2, characterized in that, The base has multiple sliding components installed at its bottom. The multiple sliding components are arranged in pairs at intervals along the left and right direction at the bottom of the base. Each pair of sliding components is arranged opposite to each other. Each sliding component includes a base plate installed on the ground, a linear guide rail extending in the left and right direction, and a linear slider that slides with the linear guide rail. The linear guide rail is installed on the corresponding base plate, and the linear slider is installed on the bottom of the base.

5. The dual-station unwinding device according to claim 2, characterized in that, Each of the unwinding components includes a pair of safety chucks arranged opposite each other on the left and right sides. The pair of safety chucks are respectively mounted on the pair of unwinding wall plates. The two ends of each of the air shafts are respectively inserted into the pair of safety chucks. One of the safety chucks is connected to the corresponding magnetic powder brake.

6. The dual-station unwinding device according to claim 2, characterized in that, The correction actuator is arranged on the left or right side of the base and is connected to the middle of the left or right end of the base.

7. The dual-station unwinding device according to claim 2, characterized in that, The plurality of transition aluminum rollers are located on the front side of the rubber roller pressing mechanism and are rotatably mounted between the pair of unrolling wall plates, with each of the transition aluminum rollers located on the upper side of the front transition aluminum roller.

8. The dual-station unwinding device according to claim 2, characterized in that, The rubber roller pressing mechanism further includes a pair of rocker arms, which are respectively connected between the pair of swing cylinders and the pressure roller. One end of each rocker arm is rotatably connected to the unwinding wall plate on the corresponding side via a pin, and the other end is drively connected to the end of the pressure roller. Each swing cylinder is connected to the middle of the corresponding rocker arm to drive the rocker arm to rotate around the pin.

9. The dual-station unwinding device according to claim 1, characterized in that, The correction mechanism also includes a correction sensor that is signal-connected to the correction actuator, and the correction sensor is installed at the front end of the unwinding frame.

10. The dual-station unwinding device according to claim 1, characterized in that, The aforementioned correction actuator is a linear cylinder.

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