A material guiding mechanism

Abstract

The utility model relates to the technical field of guide mechanism provides a material guide mechanism, solves the material position deviation and tension fluctuation problem caused simultaneously because of material roll diameter change. The utility model discloses the frame and the material roll of being located at the one end of frame, material roll one side is equipped with tension detection subassembly, the bottom of tension detection subassembly is equipped with tension adjusting assembly, and tension adjusting assembly adjusts according to the feedback signal of tension detection subassembly to compensate the tension fluctuation caused because of guide component swing, material roll other side is equipped with guide component, through structural design and function correlation, make tension adjusting assembly be used for compensating the tension fluctuation caused because of guide component swing specially, guarantee the continuity and stability of production process.

Description

Technical Field

[0001] This utility model relates to the field of guiding mechanism technology, specifically to a material guiding mechanism. Background Technology

[0002] In continuous production or processing lines for roll materials (such as films, nonwoven fabrics, and paper), the initial diameter of the material roll (unwind roll) is the largest, and its diameter gradually decreases as production progresses. This change raises two core issues:

[0003] First, the material's position will shift. Traditional fixed guiding mechanisms cannot adjust to changes in the material roll diameter, resulting in a huge difference in the material's entry and exit angles at the beginning and end of unwinding, which can easily cause the material to deviate, wrinkle, or even break.

[0004] Secondly, the tension of the material will fluctuate. According to the principles of physics, with a constant unwinding torque, a decrease in the diameter of the material roll will lead to an increase in the linear tension on the surface of the roll. For example, if the left and right side panels are transported separately, the positions of the left and right side panels may not be aligned, and the material may be transported in different directions, resulting in defective products. This instability in tension will directly affect the quality of subsequent processes (such as printing, lamination, and slitting). Utility Model Content

[0005] Therefore, in order to address the above problems, this utility model provides a material guiding mechanism to solve the problems of material position deviation and tension fluctuation caused by changes in the diameter of the material roll.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A material guiding mechanism includes a frame and a material roll disposed at one end of the frame. A tension detection component is provided on one side of the material roll, and a tension adjustment component is provided at the bottom of the tension detection component. The tension adjustment component adjusts according to the feedback signal of the tension detection component to compensate for tension fluctuations caused by the swing of the guiding component.

[0008] The material roll is provided with a guide assembly on the other side. The guide assembly includes a guide plate and a guide roller arranged at intervals. The two ends of the guide plate and the guide roller are connected by a swing arm. A fixed rod is rotatably connected to the top of the swing arm. The fixed rod is fixed to the frame. A guide cylinder is also provided on the frame. One end of the guide cylinder is rotatably connected to the frame, and the other end is rotatably connected to the swing arm on one side.

[0009] Furthermore, the extension and retraction of the guide cylinder is controlled by a controller or an independent control unit, and its contraction force is set to keep the outer surface of the guide roller pressed against the surface of the material roll during production.

[0010] Furthermore, the swing arms are arranged in parallel, and the rotation connection point between each swing arm and the fixed rod is located directly above or diagonally above the axis of the guide roller.

[0011] Furthermore, the material roll is mounted on the frame via an air shaft.

[0012] Furthermore, the tension detection assembly includes a detection roller and a tension sensor. The detection roller is rotatably mounted, and the tension sensor is disposed below the bearing seats at both ends of the roller.

[0013] Furthermore, the tension adjustment assembly includes a fixed roller, an adjusting roller group, and an adjusting rail. The fixed roller is arranged parallel to and below the detection roller. The adjusting roller group is located below the fixed roller and is slidably connected to the adjusting rail via a slider.

[0014] Furthermore, the adjusting roller group consists of at least two parallel and spaced rollers.

[0015] Furthermore, the tension adjustment assembly also includes an adjustment cylinder, the output of which is connected to the slider.

[0016] Furthermore, it also includes a controller, which is electrically connected to the tension sensor and the adjusting cylinder respectively. The controller is configured to receive the signal from the tension sensor and compare it with a preset tension range. If the tension exceeds the range, the controller outputs a control signal to the adjusting cylinder.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through structural design and functional association, enables the tension adjustment component to be specifically used to compensate for tension fluctuations caused by the swing of the guide component, thereby achieving "dynamic compensation": when the guide cylinder moves to track the diameter of the material roll, the system can anticipate and actively counteract the tension disturbance caused by this movement, fundamentally solving the problem of material deviation and tension fluctuations, and ensuring the continuity and stability of the production process.

[0019] 2. This utility model achieves "adaptive constant pressure" of the guide roller on the material roll by controlling the guide cylinder, ensuring that the guide roller can maintain stable and reliable contact with the surface of the roll material throughout the unwinding process, regardless of how the diameter of the material roll changes, providing a continuous and consistent guiding effect, and greatly reducing the risk of material wrinkling or deviation due to poor contact or uneven pressure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0021] Explanation of icon numbers:

[0022] Frame 1; Air shaft 11;

[0023] Materials Volume 2;

[0024] Guide assembly 3; guide plate 31; guide roller 32; swing arm 33; fixed rod 34;

[0025] Tension detection assembly 4; detection roller 41; tension sensor 42;

[0026] Tension adjustment assembly 5; fixed roller 51; adjusting roller group 52; adjusting rail 53; adjusting cylinder 54; slider 55;

[0027] Controller 6. Detailed Implementation

[0028] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] Example: Figure 1 As shown, this embodiment provides a material guiding mechanism, including a frame 1 and a material roll 2 mounted on one end of the frame 1 via an air shaft 11.

[0030] A guide assembly 3 is provided on one side of the material roll 2. The guide assembly 3 includes two parallel guide plates 31 and a guide roller 32. The two ends of the guide plates 31 and the guide roller 32 are connected by a pair of parallel swing arms 33. The top of the swing arms 33 is rotatably connected to a fixed rod 34 fixed on the machine frame 1 through a bearing, and the rotatable connection point is located obliquely above the axis of the guide roller 32. One end of a guide cylinder 35 is hinged to the machine frame 1, and the other end is hinged to the middle of one of the swing arms 33. During the production process, no matter how small the diameter of the material roll 2 becomes, the outer surface of the guide roller 32 is always pressed against the surface of the material roll 2 under the tension of the guide cylinder 35, so as to achieve continuous and stable guidance of the material entry and exit angle.

[0031] On the other side of the material roll 2, there is a tension detection component 4. The component includes a detection roller 41. Tension sensors 42 are installed under the bearing seats at both ends of the detection roller 41. When the material passes through the detection roller 41, its tension will act on the detection roller 41 and be detected in real time by the tension sensors 42. The tension sensors 42 can be purchased from the market and will not be described in detail here.

[0032] Directly below the tension detection assembly 4, a tension adjustment assembly 5 is provided. This assembly includes a fixed roller 51, an adjustment roller group 52 consisting of two parallel rollers, two adjustment rails 53 fixed on the frame 1, and an adjustment cylinder 54. The fixed roller 51 is located parallel to the detection roller 41 below. The adjustment roller group 52 is slidably connected to the adjustment rails 53 through sliders 55 at both ends. The output end of the adjustment cylinder 54 is connected to the sliders 55, which can drive the adjustment roller group 52 to move up and down along the adjustment rails 53. The material passes around the two rollers of the fixed roller 51 and the adjustment roller group 52 in sequence, thereby forming a variable path length.

[0033] It also includes a controller 6, which is electrically connected to the tension sensor 42, the regulating cylinder 54 and the guide cylinder 35 respectively. The controller is a programmable logic controller, a microcontroller or an industrial computer.

[0034] Equipment principle:

[0035] During the unwinding process, the guide cylinder 35 continuously applies a contraction force, pulling the swing arm 33 so that the guide roller 32 always keeps in close contact with the surface of the material roll 2. As the diameter of the material roll 2 decreases, the guide assembly 3 swings clockwise around the fixed rod, automatically tracking the diameter change of the material roll 2 and ensuring the accuracy of the guide.

[0036] This oscillation process slightly changes the path length of the material from the material roll 2 to the detection roller 41, thereby causing tension fluctuations. At this time, the tension sensor 42 monitors this fluctuation signal in real time and transmits it to the controller 6. The controller 6 compares the received real-time tension value with the internally preset tension range. If the real-time tension value exceeds the allowable range, the controller 6 immediately outputs a control signal to the regulating cylinder 54.

[0037] The regulating cylinder 54 drives the regulating roller group 52 to move along the regulating rail 53 according to the signal. If the tension is too high, the regulating roller group 52 moves upward to relax the material path and absorb the excessive tension; if the tension is too low, the regulating roller group 52 moves downward to tighten the material path and replenish the tension.

[0038] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A material guiding mechanism, comprising a frame and a material roll disposed at one end of the frame, characterized in that: A tension detection component is provided on one side of the material roll, and a tension adjustment component is provided at the bottom of the tension detection component. The tension adjustment component is adjusted according to the feedback signal of the tension detection component to compensate for tension fluctuations caused by the swing of the guide component. The material roll is provided with a guide assembly on the other side. The guide assembly includes a guide plate and a guide roller arranged at intervals. The two ends of the guide plate and the guide roller are connected by a swing arm. A fixed rod is rotatably connected to the top of the swing arm. The fixed rod is fixed to the frame. A guide cylinder is also provided on the frame. One end of the guide cylinder is rotatably connected to the frame, and the other end is rotatably connected to the swing arm on one side.

2. The material guiding mechanism according to claim 1, characterized in that: The extension and retraction of the guide cylinder is controlled by a controller or an independent control unit, and its contraction force is set to keep the outer surface of the guide roller pressed against the surface of the material roll during production.

3. The material guiding mechanism according to claim 1, characterized in that: The swing arms are arranged in parallel, and the rotation connection point between each swing arm and the fixed rod is located directly above or diagonally above the axis of the guide roller.

4. A material guiding mechanism according to claim 1, characterized in that: The material roll is mounted on the frame via an air shaft.

5. A material guiding mechanism according to claim 1, characterized in that: The tension detection assembly includes a detection roller and a tension sensor. The detection roller is rotatably mounted, and the tension sensor is mounted below the bearing seats at both ends of the roller.

6. A material guiding mechanism according to claim 5, characterized in that: The tension adjustment assembly includes a fixed roller, an adjusting roller group, and an adjusting rail. The fixed roller is arranged parallel to and below the detection roller. The adjusting roller group is located below the fixed roller and is slidably connected to the adjusting rail via a slider.

7. A material guiding mechanism according to claim 6, characterized in that: The regulating roller group consists of at least two parallel and spaced rollers.

8. A material guiding mechanism according to claim 6, characterized in that: The tension adjustment assembly also includes an adjustment cylinder, the output of which is connected to the slider.

9. A material guiding mechanism according to claim 8, characterized in that: It also includes a controller, which is electrically connected to the tension sensor and the regulating cylinder respectively. The controller is configured to receive the signal from the tension sensor and compare it with a preset tension range. If the tension exceeds the range, the controller outputs a control signal to the regulating cylinder.

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