Adjustable tension bench

Abstract

The utility model discloses an adjustable tension platform, including frame, lifting type upper pressure subassembly, adjustable lower pressure subassembly and detection board type roller, the frame has the base, two groups of side plates and the top plate of being located the top of base, and lifting type upper pressure subassembly includes the hydraulic cylinder of being fixed on the top plate, and the upper pressure plate of hydraulic cylinder output end connection, adjustable lower pressure subassembly is located the just below of lifting type upper pressure subassembly, including the lower pressure plate of being placed on the base, and three groups of lifting air cylinder in the base, one group of lifting air cylinder is located the just below of lower pressure plate center position, and the rest two groups of lifting air cylinder are located the just below of lower pressure plate left and right two sides, detection board type roller installs one side of tension platform, and its surface is embedded with a plurality of pressure sensors of the feedback stainless steel band tension value along the axial direction, and the lifting air cylinder of different position below lower pressure plate is adjusted according to the pressure value of pressure sensor feedback, to adjust the pressure value of this position. The utility model will fixed lower pressure plate change for movable type, and the bottom cooperation multiple jacking air cylinder effectively controls the anti -run -off of tension winding.

Description

Technical Field

[0001] This utility model relates to the field of tension tables, specifically an adjustable tension table. Background Technology

[0002] In the final slitting stage, stainless steel strip is cut into different widths according to customer requirements. Specifically, the steel strip passes through a disc shear, then through a looper, into a separating mechanism, then into a tension table, then through a guide roller, and finally into a winding unit. A certain tension must be maintained between the winding unit and the tension table; otherwise, the coil will collapse, deform, or become misaligned after being unloaded. Therefore, tension control is required on the tension table.

[0003] Most existing tension tables use upper and lower pressure plates to establish tension. The device consists of a fixed lower pressure plate, a movable upper pressure plate, and a pressing cylinder. When the metal strip passes between the upper and lower pressure plates, the upper pressure plate presses the metal strip under the action of the pressing cylinder, giving it a set pressure. This pressure will give the metal strip a resistance opposite to the traction direction during the winding process, and this resistance will form the tension during the winding process.

[0004] When wide-width stainless steel strips pass through the tension table, due to their large width, it is difficult to control the pressure on both sides of the tension table. Therefore, they are prone to lateral deviation during the forward movement, which leads to synchronous deviation during the subsequent winding of the stainless steel strip. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable tension table, which changes the fixed lower pressure plate to a movable one, and uses multiple lifting cylinders at the bottom to effectively control the tension and prevent deviation during winding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable tension table, comprising a frame, a lifting upper pressing assembly, an adjustable lower pressing assembly, and a detection plate-shaped roller. The frame has a base, two sets of side plates, and a top plate located above the base. The lifting upper pressing assembly includes a hydraulic cylinder fixed on the top plate and an upper pressing plate connected to the output end of the hydraulic cylinder. The adjustable lower pressing assembly is located directly below the lifting upper pressing assembly and includes a lower pressing plate placed on the base and three sets of lifting cylinders located within the base. One set of lifting cylinders is located directly below the center of the lower pressing plate, and the other two sets of lifting cylinders are located directly below the left and right sides of the lower pressing plate, respectively. The detection plate-shaped roller is installed on one side of the tension table, and its surface is embedded with multiple pressure sensors that provide feedback on the tension value of the stainless steel strip along the axial direction. The lifting cylinders at different positions below the lower pressing plate are adjusted according to the pressure values ​​fed back by the pressure sensors to adjust the pressure value at that position.

[0007] Preferably, the two ends of the upper pressure plate are connected to a sliding assembly fixed on the inner wall of the side plate. The sliding assembly includes two parallel slide rails and a slide block mounted on the two slide rails that can slide back and forth. The two ends of the upper pressure plate are connected and fixed to the slide block.

[0008] Preferably, the surfaces of the upper and lower pressure plates opposite to each other are provided with a felt layer.

[0009] Compared with the prior art, the beneficial effects of this utility model are: An adjustable lower pressure plate assembly is used. When offset, the lifting height of the lifting cylinders on both sides is adjusted to regulate the pressure value on both sides, thereby adjusting the offset and ensuring the neatness of the winding. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a structural diagram of the frame in an embodiment of the present utility model; Figure 3 This is a partial cross-sectional view of an embodiment of the present utility model. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0012] This utility model discloses an adjustable tension table for controlling the tension of stainless steel strip after slitting and before winding. Its structure is as follows: Figure 1 As shown, the system includes a frame 1, a lifting upper pressing assembly 2, an adjustable lower pressing assembly 3, and a detection plate-shaped roller 4 mounted on the frame. The lifting upper pressing assembly and the adjustable lower pressing assembly are arranged vertically opposite each other. The lifting upper pressing assembly presses the upper part of the stainless steel strip under the control of a hydraulic cylinder, while the adjustable lower pressing assembly presses the lower part of the stainless steel strip in an adjustable manner. The detection plate-shaped roller has multiple pressure sensors (not shown) embedded along the axial direction to provide feedback on the tension value of the stainless steel strip. The adjustable lower pressing assembly adjusts the tension at different positions below the roller based on the pressure values ​​fed back by the pressure sensors.

[0013] Specifically, the rack structure is as follows: Figure 2 As shown, it includes a base 11, two side plates 12 and a top plate 13. The surface of the base is provided with a groove 14 for fixing a lifting and pressing assembly. The two side plates are fixed on both sides of the base, and the top plate is located above the base, with both ends fixed to the side plates.

[0014] The lifting and pressing assembly includes a hydraulic cylinder 21 fixed on the top plate, an upper pressing plate 22 connected to the output end of the hydraulic cylinder, and a sliding assembly 23 fixed on the inner walls of the two side plates. The two ends of the upper pressing plate are connected to the sliding assembly. The upper pressing plate is raised and lowered along the sliding assembly by the hydraulic cylinder. The sliding assembly consists of two parallel slide rails 24 and a slide seat 25 mounted on the slide rails. The two ends of the upper pressing plate are fixed to the slide seat. At the same time, a felt layer 26 is provided on the lower surface of the upper pressing plate.

[0015] The adjustable pressure component structure is as follows: Figure 3 As shown, the device includes a lower pressure plate 31 and three sets of lifting cylinders 32 (the telescopic ends of the lifting cylinders are connected to the back of the lower pressure plate). The lower pressure plate is placed on a base, and the three sets of lifting cylinders are located inside the base. Their telescopic ends can pass through the base to lift the lower pressure plate. One set of the three sets of lifting cylinders is located directly below the center of the lower pressure plate, and the other two sets are located directly below the left and right sides of the lower pressure plate, respectively. Under normal circumstances, the three sets of lifting cylinders are in a retracted state, and their telescopic ends are separated from the lower pressure plate. When the tension table is working, the three sets of lifting cylinders extend synchronously to press against the lower pressure plate. At this time, the extension height of the three sets of lifting cylinders is the same, and the pressure values ​​at the left, center, and right positions on the lower pressure plate are also the same. When the stainless steel strip deviates, the extension height of the lifting cylinder on the side to which it deviates is increased, that is, the pressure value on that side is increased, causing the stainless steel strip to move in the opposite direction, thereby correcting the deviation problem.

[0016] The two ends of the detection plate roller are fixed to the side of the slide block by the bracket 41. When the upper pressure plate moves down, the multiple detection plate rollers descend synchronously to press the stainless steel strip. The pressure sensor embedded on the detection plate roller is in contact with the stainless steel strip to obtain the tension value in real time. When the stainless steel strip deviates, the pressure value on the deviated side is different from the pressure value at other positions, so the direction of the stainless steel strip deviates can be determined, and the corresponding lifting cylinder can be adjusted.

[0017] The feature of this invention is that the original fixed lower pressure plate is replaced with an adjustable structure, which, together with a pressure sensor, detects the tension value on the surface of the steel strip in real time, and can be corrected in time when the steel strip deviates.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable tension table, comprising a frame, a lifting upper pressing assembly, an adjustable lower pressing assembly, and a detection plate-shaped roller, wherein the frame has a base, two sets of side plates, and a top plate located above the base, and the lifting upper pressing assembly includes a hydraulic cylinder fixed to the top plate and an upper pressing plate connected to the output end of the hydraulic cylinder, characterized in that: The adjustable downward pressing assembly is located directly below the lifting upward pressing assembly. It includes a downward pressing plate placed on the base and three sets of lifting cylinders located inside the base. One set of lifting cylinders is located directly below the center of the downward pressing plate, and the other two sets of lifting cylinders are located directly below the left and right sides of the downward pressing plate, respectively. The detection plate roller is installed on one side of the tension table, and multiple pressure sensors that provide feedback on the tension value of the stainless steel strip are embedded on its surface along the axial direction. The lifting cylinders at different positions below the downward pressing plate are adjusted according to the pressure value fed back by the pressure sensors to adjust the pressure value at that position.

2. The adjustable tension table according to claim 1, characterized in that: The upper pressure plate is connected at both ends to a sliding assembly fixed on the inner wall of the side plate. The sliding assembly includes two parallel slide rails and a slide seat mounted on the two slide rails that can slide back and forth. The upper pressure plate is connected and fixed to the slide seat at both ends.

3. The adjustable tension table according to claim 1, characterized in that: The surfaces of the upper and lower pressure plates opposite each other are provided with felt layers.

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