Swing arm buffering device
By using a low-friction cylinder driven by a swing arm buffer device and an angle sensor, the problems of accuracy and speed in adjusting the belt tension are solved, achieving constant belt tension and reducing energy consumption and debugging time.
Patent Information
- Application Number
- CN202423183789.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-21
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-21
AI Technical Summary
In the current process of processing material strips, the tension adjustment device requires manual replacement of the counterweight or adjustment of its position, resulting in poor accuracy and troublesome adjustment, making it difficult to quickly adapt to the tension requirements of different material strips.
The device employs a swing arm buffer system, which uses a low-friction cylinder to drive the swing arm. An angle sensor detects changes in the tension of the material belt and automatically adjusts the balance of the swing arm. Combined with a limit block and a through arc groove, the swing range is limited, enabling rapid and precise tension adjustment.
It achieves automatic adjustment of constant belt tension, avoiding breakage and slack, improving adjustment accuracy and speed, and reducing energy consumption and operating costs.
Smart Images
Figure CN223495774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of strip processing technology, and in particular to a swing arm buffer device. Background Technology
[0002] During the processing of the strip material, in order to ensure constant strip tension, a tension regulating device is used to adjust the strip tension. The principle is that a counterweight keeps the tension support with the strip wound on it in a balanced state. When the strip tension changes, a drive device drives the tension support to rotate, and the rotating tension support tightens or loosens the strip, thereby achieving the purpose of adjusting the strip tension. The disadvantage is that when changing to different strip materials, it is necessary to manually replace the appropriate counterweight or adjust the installation position of the counterweight to adjust the balance of the tension support to adapt to different strip tensions. This method of adapting to different usage scenarios by replacing the counterweight or adjusting the position of the counterweight is not only less accurate, but also requires multiple installations and removals of the counterweight, making the adjustment of the balance of the tension support cumbersome.
[0003] Therefore, a swing arm buffer device is needed to solve the above problems. Utility Model Content
[0004] This invention proposes a swing arm buffer device, which can buffer the material belt when the tension of the belt changes, avoiding belt breakage and excessive slack. Compared with existing switching devices, the swing arm drive device can quickly and accurately adjust the balance of the swing arm, so that the device can quickly and accurately adapt to different working scenarios and reduce the debugging time of the device.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A swing arm buffer device includes a frame, on which a first guide roller and a second guide roller are mounted. A swing arm is rotatably mounted on the frame via a rotating shaft. A gravity roller is mounted on the free end of the swing arm. A material strip is sequentially wound around the first guide roller, the gravity roller, and the second guide roller. A swing arm drive device is hinged to the swing arm via a hinge shaft, which is located between the rotating shaft and the gravity roller. The gravity roller is located below the first guide roller and the second guide roller. An angle sensor is fixedly mounted on the frame, and the rotating shaft is drively connected to the rotating shaft of the angle sensor.
[0007] As a preferred technical solution, the swing arm drive device includes a low-friction cylinder, the cylinder body of which is hinged to the frame.
[0008] As a preferred technical solution, both the first guide roller and the second guide roller are arranged parallel to the gravity roller, and the gravity roller is arranged parallel to the rotation shaft.
[0009] As a preferred technical solution, a pair of limiting blocks are fixedly installed on the frame, and the two limiting blocks are respectively disposed on both sides of the swing arm.
[0010] As a preferred technical solution, the frame is provided with a swing through arc groove, and the mounting end of the gravity roller passes through the swing through arc groove.
[0011] By adopting the above technical solution, the beneficial effects of this utility model are as follows:
[0012] Since the swing arm buffer device includes a swing arm, during the use of this device, the material belt passes around the bottom of the first guide roller and the gravity roller in sequence. According to the characteristics of the material belt itself or production requirements, the swing arm drive device provides a supporting force to the swing arm, so that the swing arm is in a balanced state. When the tension of the material belt continuously conveyed downstream changes, the swing arm swings, thereby buffering the material belt and avoiding the occurrence of material belt breakage and excessive slack. At the same time, after the sensing device senses the swing arm swing, it feeds back to the take-up and unwinding device. The take-up and unwinding device speeds up or slows down the take-up and unwinding of the material belt, so that the tension of the material belt is adjusted, thereby ensuring that the tension of the material belt remains constant during the conveying process.
[0013] In this invention, the pressure inside the cylinder of the low-friction cylinder can be controlled by a pressure control valve. The piston rod of the low-friction cylinder outputs a supporting force to keep the supporting swing arm in a balanced state. When the tension of the material belt increases, the pulling force of the material belt on the gravity roller increases, causing the swing arm to swing upward. Conversely, when the tension of the material belt decreases, the pulling force of the material belt on the gravity roller decreases, and under the action of gravity, the swing arm swings downward. That is, the swing arm achieves the buffering of the change in the tension of the material belt.
[0014] For different working scenarios, even if the tension of the conveyor belt is different, this utility model can adjust the supporting force of the low-friction cylinder on the swing arm to keep the swing arm in a balanced state, which increases the application scenarios of this device. Compared with the existing buffer device that maintains the balance of the tension swing arm by changing the counterweight or changing the installation position of the counterweight, this utility model adjusts the balance of the swing arm by supporting force in a more precise and faster way.
[0015] Because of the low friction between the piston rod and the cylinder barrel of the low friction cylinder, the piston movement is smoother, which helps the swing arm to achieve precise position control and makes the device accurately adapt to different working scenarios.
[0016] The reduction in friction between the piston rod and cylinder of the low-friction cylinder not only reduces energy loss, making the device more energy-efficient and with lower operating costs, but also reduces the force required for the piston rod to overcome friction, thus enabling the device to respond quickly and avoiding belt breakage or excessive slack caused by untimely response. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the buffer roller structure;
[0020] Figure 3 This is a schematic diagram of the swing arm.
[0021] The components include: 1. Frame; 2. First guide roller; 3. Second guide roller; 4. Rotating shaft; 5. Swing arm; 6. Gravity roller; 7. Material belt; 8. Hinge shaft; 9. Angle sensor; 10. Low friction cylinder; 11. Limit block; 12. Swinging through arc groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-3 As shown, the swing arm buffer device includes a frame 1, on which a first guide roller 2 and a second guide roller 3 are provided. A swing arm 5 is rotatably mounted on the frame 1 via a rotating shaft 4. A gravity roller 6 is mounted on the free end of the swing arm 5. A material belt 7 is sequentially wound around the first guide roller 2, the gravity roller 6, and the second guide roller 3. A swing arm 5 drive device is hinged to the swing arm 5 via a hinge shaft 8. The hinge shaft 8 is located between the rotating shaft 4 and the gravity roller 6. The gravity roller 6 is located below the first guide roller 2 and the second guide roller 3. An angle sensor 9 is fixedly mounted on the frame 1. The rotating shaft 4 is connected to the rotating shaft of the angle sensor 9 via a transmission connection.
[0024] The swing arm 5 drive device includes a low-friction cylinder 10, the cylinder body of which is hinged to the frame 1.
[0025] Furthermore, the first guide roller 2 and the second guide roller 3 are both arranged parallel to the gravity roller 6, and the gravity roller 6 is arranged parallel to the rotating shaft 4.
[0026] Furthermore, a pair of limiting blocks 11 are fixedly installed on the frame 1. The two limiting blocks 11 are respectively set on both sides of the swing arm 5. In this utility model, the setting of the limiting blocks 11 can limit the swing angle of the swing arm 5 and prevent the swing arm 5 from swinging at a large angle.
[0027] The frame 1 is provided with a swing through arc groove 12, and the mounting end of the gravity roller 6 passes through the swing through arc groove 12. In this utility model, the swing through arc groove 12 limits the swing range of the gravity roller 6.
[0028] In summary, this invention can buffer the material belt when the tension changes, preventing belt breakage and excessive slack. Compared with existing switching devices, the swing arm drive device can quickly and accurately adjust the balance of the swing arm, enabling the device to quickly and accurately adapt to different working scenarios and reducing the debugging time.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A swing arm buffer device, comprising a frame, characterized in that, The frame is provided with a first guide roller and a second guide roller. A swing arm is rotatably mounted on the frame via a rotating shaft. A gravity roller is mounted on the free end of the swing arm. The material strip is sequentially wound around the first guide roller, the gravity roller, and the second guide roller. A swing arm drive device is hinged to the swing arm via a hinge shaft. The hinge shaft is located between the rotating shaft and the gravity roller. The gravity roller is located below the first guide roller and the second guide roller. An angle sensor is fixedly mounted on the frame. The rotating shaft is connected to the rotating shaft of the angle sensor.
2. The swing arm buffer device according to claim 1, characterized in that, The swing arm drive device includes a low-friction cylinder, the cylinder body of which is hinged to the frame.
3. The swing arm buffer device according to claim 1, characterized in that, The first guide roller and the second guide roller are both arranged parallel to the gravity roller, and the gravity roller is arranged parallel to the rotation axis.
4. The swing arm buffer device according to claim 1, characterized in that, A pair of limiting blocks are fixedly installed on the frame, and the two limiting blocks are respectively located on both sides of the swing arm.
5. The swing arm buffer device according to claim 1, characterized in that, The frame is provided with a swing-through arc-shaped groove, and the mounting end of the gravity roller passes through the swing-through arc-shaped groove.