Tension device of slitting machine

Abstract

The utility model relates to a tension device of a slitting machine, which comprises an upper pressing plate and a lower pressing plate, a copper strip is pressed in the upper pressing plate and the lower pressing plate from the upper side and the lower side, the lower pressing plate is arranged on a base, and an upper tension support is arranged on the base. The upper pressing plate is arranged at the end of a push rod of the first servo electric cylinder, a guide shaft penetrating through the horizontal plate in a sliding mode is arranged at the upper end of the upper pressing plate, and wool felts are arranged on the opposite sides of the upper pressing plate and the lower pressing plate respectively. The first servo electric cylinder drives the upper pressing plate to move up and down, the pressure of the upper pressing plate and the lower pressing plate on the copper strip can be accurately controlled, manual adjustment is not needed, and therefore adjustment of the tension of the copper strip is achieved.

Description

Tension device for a slitting machine Technical Field

[0001] This utility model relates to the field of copper strip processing technology, and in particular to a tension device for a slitting machine. Background Technology

[0002] A slitting machine, also known as a slitting line, longitudinal slitting machine, or stripping machine, is a type of metal slitting equipment. Its purpose is to perform longitudinal shearing of metal strips and rewind the slits into coils. A typical slitting line consists of: an uncoiler, guiding device, uncoiling tension device, slitting assembly, feeding table, and looper.

[0003] Existing technologies, such as patent CN220055726U, disclose a tension adjustment device. Although tension can be adjusted in stages by adjusting screws, it still has the following shortcomings: On the one hand, the adjusting screws are mostly manually adjusted by a single thread, which is inefficient. On the other hand, the adjusting screws are prone to thread wear and adjustment jamming during long-term use, which leads to unstable tension adjustment, affects the consistency of the strip depth in the looper, and thus affects the length of the single roll of material and production efficiency. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a tension device for a slitting machine.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a tension device for a slitting machine, including an upper pressure plate and a lower pressure plate that press copper strips from the upper and lower sides, the lower pressure plate is set on a base, and an upper tension bracket is provided on the base. The upper tension bracket is characterized by having a horizontal plate, a first servo electric cylinder at the lower end of the horizontal plate, the upper pressure plate being set at the push rod end of the first servo electric cylinder, and a guide shaft sliding through the horizontal plate at the upper end of the upper pressure plate. Wool felt is provided on the opposite side of the upper pressure plate and the lower pressure plate.

[0006] Furthermore, the upper tension bracket is provided with a connecting plate, the upper tension bracket has an inverted concave structure, the lower end of the connecting plate is provided with an electric push rod, and a horizontal plate is provided at the end of the electric push rod.

[0007] Furthermore, the upper end of the horizontal plate is provided with a guide rod that penetrates the connecting plate, and the end of the guide rod that extends out of the connecting plate is provided with a limiting plate.

[0008] Furthermore, a pressure sensor is provided between the lower pressure plate and the base, and the pressure sensor is an array-type pressure sensor.

[0009] Furthermore, a lifting mechanism is provided on the base in front of the lower pressure plate, and a lower pressure bracket is provided on the lifting mechanism. The lifting mechanism is used to drive the lower pressure bracket to move up and down. A lower pressure roller is rotatably provided on the lower pressure bracket, and the lower pressure roller is in contact with the upper surface of the copper strip.

[0010] Furthermore, the pressure support has a U-shaped structure and includes a base plate and two side plates disposed opposite to each other on the base plate. The pressure roller is rotatably disposed between the two side plates, and a gap is formed between the pressure roller and the base plate for the copper strip to pass through.

[0011] Furthermore, the lifting mechanism includes a second servo electric cylinder, a groove is provided at the lower end of the base, the second servo electric cylinder is disposed in the groove, the push rod of the second servo electric cylinder is disposed upward, and the pressing bracket is disposed at the end of the push rod of the second servo electric cylinder.

[0012] Furthermore, it also includes a control unit located on one side of the base. The control unit includes a PLC controller, which is electrically connected to the electric push rod, the first servo electric cylinder, the second servo electric cylinder, and the pressure sensor.

[0013] The beneficial effects of this application are as follows: 1. This application drives the upper pressure plate to move up and down by the first servo electric cylinder, and adjusts the position of the horizontal plate by the electric push rod, so as to accurately control the pressure of the upper and lower pressure plates on the copper strip without manual adjustment, thereby realizing the adjustment of the copper strip tension.

[0014] 2. The array-type pressure sensor in this application monitors the pressure data of the lower pressure plate in real time and transmits the data to the PLC controller. The PLC controller adjusts the action of the first servo electric cylinder in real time according to the pressure data, thereby controlling the tension of the copper strip and further improving the accuracy of tension control.

[0015] 3. The second servo electric cylinder of this application drives the lowering bracket and the lowering roller to descend, thereby pressing down the copper strip and realizing auxiliary adjustment of the tension of the copper strip. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of Embodiment 1 of this application.

[0017] Figure 2 is a schematic diagram of the tension support structure of this application.

[0018] Figure 3 is a schematic diagram of the structure of the guide shaft of this application.

[0019] Figure 4 is a schematic diagram of the structure of the pressure bracket of this application.

[0020] Figure 5 is a structural schematic diagram of Embodiment 2 of this application.

[0021] Diagram markings: 1. Base, 2. Horizontal plate, 3. First servo electric cylinder, 4. Upper pressure plate, 5. Lower pressure plate, 6. Wool felt, 7. Electric push rod, 8. Lower pressure bracket, 9. Lower pressure roller, 10. Guide frame, 101. Upper roller, 102. Lower roller, 11. Upper tension bracket, 12. Connecting plate, 13. Sinking trough, 21. Guide rod, 22. Limiting plate, 41. Guide shaft, 81. Base plate, 82. Side plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Please refer to Figures 1-4. This embodiment of the present invention provides a tension device for a slitting machine, including an upper pressure plate 4 and a lower pressure plate 5 that press copper strips between them from the top and bottom. The lower pressure plate 5 is mounted on a base 1, and an upper tension bracket 11 is mounted on the base 1. A horizontal plate 2 is mounted on the upper tension bracket 11, and a first servo electric cylinder 3 is mounted at the lower end of the horizontal plate 2. The upper pressure plate 4 is mounted at the end of the push rod of the first servo electric cylinder 3, and a guide shaft 41 that slides through the horizontal plate 2 is mounted at the upper end of the upper pressure plate 4. Wool felt 6 is mounted on opposite sides of the upper pressure plate 4 and the lower pressure plate 5. The wool felt 6 increases the friction with the copper strip while preventing scratches on the surface of the copper strip.

[0024] The upper tension bracket 11 is equipped with a connecting plate 12. The upper tension bracket 11 has an inverted concave structure, and the connecting plate 12 and the upper tension bracket 11 have a 7-shaped structure and are welded together. An electric push rod 7 is located at the lower end of the connecting plate 12, and a horizontal plate 2 is located at the end of the electric push rod 7, allowing the horizontal plate 2 to move up and down. A guide rod 21 is located at the upper end of the horizontal plate 2, penetrating the connecting plate 12. A limiting plate 22 is located at the end of the guide rod 21 extending out of the connecting plate 12. A pressure sensor, which is an array-type pressure sensor, is located between the lower pressure plate 5 and the base 1.

[0025] Specifically, a lifting mechanism is provided on the base 1 in front of the lower pressure plate 5. A lower pressure bracket 8 is provided on the lifting mechanism. The lifting mechanism drives the lower pressure bracket 8 to move up and down. A lower pressure roller 9 is rotatably mounted on the lower pressure bracket 8. The lower pressure roller 9 is in contact with the upper surface of the copper strip to assist in controlling the tension of the copper strip. The lower pressure bracket 8 has a U-shaped structure and includes a base plate 81 and two side plates 82 oppositely disposed on the base plate 81. The U-shaped opening of the lower pressure bracket 8 faces upward. The base plate 81 and the two side plates 82 are integrally formed. The lower pressure roller 9 is rotatably disposed between the two side plates 82, forming a gap between the lower pressure roller 9 and the base plate 81 for the copper strip to pass through. The lifting mechanism includes a second servo electric cylinder. A groove 13 is provided at the lower end of the base 1. The second servo electric cylinder is disposed in the groove 13, with its push rod facing upward. The lower pressure bracket 8 is disposed at the end of the push rod of the second servo electric cylinder.

[0026] In addition, it also includes a control unit located on one side of the base 1. The control unit includes a PLC controller, which is electrically connected to the electric push rod 7, the first servo electric cylinder 3, the second servo electric cylinder and the pressure sensor respectively.

[0027] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0028] For example, in Embodiment 2, unlike the embodiments described above, as shown in Figure 5, a guide frame 10 is provided on the base 1 between the lifting mechanism and the lower pressure plate 5. An upper roller 101 and a lower roller 102 are rotatably mounted on the guide frame 10 in the vertical direction, forming a guide space between the upper roller 101 and the lower roller 102 for the copper strip to pass through smoothly. The upper end face of the lower roller 102 is flush with the upper end face of the felt 6 of the lower pressure plate 5. The guide frame 10 includes two vertical plates, and the upper roller 101 and the lower roller 102 are rotatably disposed between the two vertical plates.

[0029] This device is installed in front of the slitting assembly of the slitting machine. In use, the electric push rod 7 is activated to adjust the position of the horizontal plate 2, so that the initial gap between the upper pressure plate 4 and the lower pressure plate 5 adapts to the thickness of the copper strip. The copper strip enters between the upper pressure plate 4 and the lower pressure plate 5 through the upper roller 101 and the lower roller 102 of the guide frame 10. The first servo electric cylinder 3 drives the upper pressure plate 4 to move downwards, and the upper pressure plate 4 and the lower pressure plate 5 press the copper strip together through the felt 6, generating tension.

[0030] As needed, the second servo electric cylinder is activated to drive the lowering bracket 8 and the lowering roller 9 to descend, assisting in adjusting the tension of the copper strip.

[0031] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A tension device for a slitting machine, comprising an upper pressure plate (4) and a lower pressure plate (5) for pressing copper strips from the upper and lower sides therebetween, the lower pressure plate (5) being disposed on a base (1), and an upper tension bracket (11) being disposed on the base (1), characterized in that, A horizontal plate (2) is provided on the upper tension bracket (11), and a first servo electric cylinder (3) is provided at the lower end of the horizontal plate (2). An upper pressure plate (4) is provided at the end of the push rod of the first servo electric cylinder (3), and a guide shaft (41) that slides through the horizontal plate (2) is provided at the upper end of the upper pressure plate (4). Wool felt (6) is provided on the opposite side of the upper pressure plate (4) and the lower pressure plate (5); a connecting plate (12) is provided on the upper tension bracket (11). The upper tension bracket (11) has an inverted concave structure, and the connecting plate (12) has a connecting plate (12) that slides through the horizontal plate (2). 2) An electric push rod (7) is provided at the lower end, and a horizontal plate (2) is provided at the end of the electric push rod (7); a pressure sensor is provided between the lower pressure plate (5) and the base (1), and the pressure sensor is an array-type pressure sensor; a lifting mechanism is provided on the base (1) in front of the lower pressure plate (5), and a lower pressure bracket (8) is provided on the lifting mechanism. The lifting mechanism is used to drive the lower pressure bracket (8) to move up and down. A lower pressure roller (9) is rotatably provided on the lower pressure bracket (8), and the lower pressure roller (9) is in contact with the upper surface of the copper strip.

2. The tension device of a slitting machine according to claim 1, characterized in that, The upper end of the horizontal plate (2) is provided with a guide rod (21) that passes through the connecting plate (12), and the end of the guide rod (21) that extends out of the connecting plate (12) is provided with a limiting plate (22).

3. The tension device of a slitting machine according to claim 1, characterized in that, The pressure support (8) has a U-shaped structure and includes a base plate (81) and two side plates (82) disposed opposite to each other on the base plate (81). The pressure roller (9) is rotatably disposed between the two side plates (82), and a gap is formed between the pressure roller (9) and the base plate (81) for the copper strip to pass through.

4. The tension device of a slitting machine according to claim 1, characterized in that, The lifting mechanism includes a second servo electric cylinder. The lower end of the base (1) is provided with a sinkhole (13). The second servo electric cylinder is set in the sinkhole (13). The push rod of the second servo electric cylinder is set upward. The pressing bracket (8) is set at the end of the push rod of the second servo electric cylinder.

5. The tension device of a slitting machine according to claim 4, characterized in that, It also includes a control unit located on one side of the base (1). The control unit includes a PLC controller, which is electrically connected to the electric push rod (7), the first servo electric cylinder (3), the second servo electric cylinder, and the pressure sensor.

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