Automatic steel belt leveling and cutting device

Abstract

The utility model discloses an automatic steel belt leveling and cutting device, which relates to the technical field of steel belt cutting devices and particularly comprises a feeding roller, a leveling device, a cutting device and a fixed-length measuring device which are sequentially arranged along the length direction. The leveling device comprises a lower driving roller assembly and an upper pressing roller assembly which is matched with the lower driving roller assembly to level a steel belt, the fixed-length measuring device is provided with a bearing table used for bearing the steel belt and comprises a vertical plate, the vertical plate is provided with a sensing device which moves in the horizontal direction through a lead screw mechanism, and the sensing device is connected with the lower driving roller assembly. The induction device comprises a telescopic rod driven by an air cylinder to move up and down and a proximity switch, the proximity switch detects a position signal of the telescopic rod and controls the cutting device to cut off the steel belt through the controller, flattening of the steel belt and free control over the cutting length can be automatically achieved, and the applicability is wider; and the precision is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strip cutting devices, in particular to an automatic leveling and cutting device for steel strips. Background Art

[0002] The square pile skirt is a component used in the construction field. It is mainly used to seal the square pile with the pipe mold during the centrifugal production process to prevent leakage of slurry. Concrete is poured into it to fix it to the two ends of the square pile. In the production process of the square pile skirt, the production of the skirt requires cutting the long steel strip into a predetermined length and then bending it into shape.

[0003] At present, when cutting the steel strip, since the steel strip is in a curled state at the beginning, the steel strip is not flat during cutting, which will cause cutting errors. In addition, the control of the cutting length is generally carried out by means of an encoder for sensing control, that is, the moving distance of the steel strip is converted into a signal through the rotation of the encoder, and then the cutting length is controlled. However, since the encoder determines the moving distance of the steel strip by the number of revolutions it rotates, it cannot sense when the number of revolutions does not meet an integer number of revolutions. In other words, the cutting length of the steel strip needs to adapt to the encoder, and its applicability is limited. In addition, due to its limitations, its cutting accuracy is not high. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to overcome the shortcomings of the existing technology, an automatic leveling and cutting device for steel strips is proposed, which can accurately cut the curled steel strips and has a wide range of applications.

[0006] (II) Technical solution

[0007] The utility model is achieved through the following technical scheme: the utility model proposes an automatic leveling and cutting device for steel strips, comprising a feed roller, a leveling device, a cutting device and a fixed-length measuring device arranged in sequence along the length direction, the leveling device comprising a lower driving roller assembly, and an upper pressure roller assembly cooperating with the lower driving roller assembly to level the steel strip, the fixed-length measuring device is provided with a receiving platform for receiving the steel strip, the fixed-length measuring device comprises a vertical plate, the vertical plate is provided with a sensing device that moves in a horizontal direction through a screw mechanism, the sensing device comprises a telescopic rod that moves up and down through a cylinder and a proximity switch, the proximity switch detects a position signal of the telescopic rod and controls the cutting device through a controller to cut the steel strip.

[0008] Furthermore, the lower driving roller assembly includes a driving roller and a plurality of driven rollers drivingly connected to the driving roller, and the upper pressure roller assembly includes an adjusting pressure roller arranged directly above the driving roller and a plurality of floating pressure rollers arranged above the driven roller.

[0009] Furthermore, guiding devices for guiding the steel strip are provided between the feeding roller and the leveling device, and between the leveling device and the cutting device. The guiding device includes two symmetrically arranged bearing assemblies.

[0010] Furthermore, the cutting device includes a moving knife seat that moves up and down through an oil cylinder. A pressing plate for limiting the steel strip is provided on the front side of the moving knife seat, and a fixed knife seat is provided directly below the pressing plate.

[0011] Furthermore, the receiving table includes a supporting plate for receiving the steel strip. The supporting plate can move in the front-rear direction driven by a cylinder, and a linear guide device is provided directly below the supporting plate.

[0012] Furthermore, a belt conveyor is provided directly below the receiving table.

[0013] (III) Beneficial Effects

[0014] The present utility model has the following beneficial effects compared with the prior art:

[0015] An automatic steel strip leveling and cutting device mentioned in the present utility model can realize the feeding and leveling of the steel strip through the leveling device. By using a servo motor to drive a screw mechanism and drive the sensing device to move, it can freely control the cutting length, with a wider applicability. The sensing device uses the method of sensing by the steel strip contacting the telescopic rod, and compared with the sensing method of the encoder rotating, its accuracy is more precise. In addition, a guiding device is provided to ensure that the cut will not cause the cut edge to be skewed, and a belt conveyor is provided to facilitate the transfer of the steel strip. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present utility model.

[0017] Figure 2 is a schematic structural diagram of the leveling device.

[0018] Figure 3 is Figure 2 the internal transmission structural diagram of

[0019] Figure 4 is a schematic structural diagram of the cutting device.

[0020] Figure 5 is a schematic structural diagram of the fixed-length measurement device.

[0021] Figure 6 is Figure 5 the side structural diagram of

[0022] Figure 7 is a schematic structural diagram of the receiving table.

[0023] 1 - Feeding roller; 2 - Flattening device; 3 - Cutting device; 4 - Fixed-length measuring device; 5 - Steel strip; 6 - Receiving table; 7 - Belt conveyor; 21 - Lower driving roller assembly; 22 - Upper pressure roller assembly; 23 - Floating plate; 31 - Oil cylinder; 32 - Moving knife seat; 33 - Pressure plate; 34 - Fixed knife seat; 41 - Vertical plate; 42 - Screw mechanism; 43 - Induction device; 61 - Support plate; 62 - Linear guide device; 211 - Driving roller; 212 - Driven roller; 221 - Adjusting pressure roller; 222 - Floating pressure roller. Detailed implementation mode

[0024] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] As Figures 1-7 shown, an automatic flattening and cutting device for steel strips includes a feeding roller 1, a flattening device 2, a cutting device 3, and a fixed-length measuring device 4 arranged in sequence along the length direction. The feeding roller 1 is used to place the steel strip coil. The flattening device 2 can bite and drag the steel strip 5 to move it along the direction of the cutting device 3. The flattening device 2 includes a lower driving roller assembly 21 and an upper pressure roller assembly 22. The lower driving roller assembly 21 and the upper pressure roller assembly 22 cooperate with each other to flatten the steel strip 5. The lower driving roller assembly 21 includes a driving roller 211 driven by a motor. One end of the driving roller 211 is provided with a transmission gear, and the driving connection with a number of driven rollers 212 is realized through the transmission gear. An adjusting pressure roller 221 is arranged directly above the driving roller 211. Both ends of the adjusting pressure roller 221 are arranged on the floating plate 23. The floating plate 23 drives the floating plate 23 to move up and down through a compression screw. A buffer spring is sleeved on the compression screw, so as to realize the up and down movement of the adjusting pressure roller 221. The adjusting pressure roller 221 and the driving roller 211 are used to adjust the biting force on the steel strip 5. A number of floating pressure rollers 222 are arranged above the driven rollers 212 and cooperate with them. Both ends of the floating pressure roller 222 are arranged on the floating plate 23. The floating plate 23 drives the floating plate 23 to move up and down through a compression screw. A buffer spring is sleeved on the compression screw, so as to realize the up and down movement of the floating pressure roller 222. The floating pressure roller 222 and the driven roller 212 cooperate to adjust the flattening of the steel strip 5. In addition, a rotating wheel is arranged at the end of the compression screw, which is convenient for personnel to operate and adjust. Since both the floating pressure roller 222 and the adjusting pressure roller 221 can be adjusted up and down, it can be applied to steel strips 5 of different thicknesses.

[0026] A guiding device 7 for guiding the steel strip 5 is provided between the feeding roller 1 and the leveling device 2, and between the leveling device 2 and the cutting device 3. The guiding device 7 includes two symmetrically arranged bearing assemblies. After the steel strip 5 enters the guiding device 7, it can be limited by the bearings, so that the steel strip 5 is perpendicular to the tool tip when entering the cutting device 3, and the cut will not cause the cut to be skewed.

[0027] The cutting device 3 includes a moving tool holder 32 that moves up and down through an oil cylinder 31. A pressing plate 33 for limiting the steel strip 5 is arranged on the front side of the moving tool holder 32. A fixed tool holder 34 is arranged directly below the pressing plate 33. When the steel strip 5 is cut, the oil cylinder 31 drives the moving tool holder 32 to move downward and drives the pressing plate 33 to move to press the steel strip 5. Then, the tool tip on the moving tool holder 32 cooperates with the fixed tool holder 34 to cut the steel strip 5.

[0028] The fixed-length measuring device 4 includes a vertical plate 41. A lead screw mechanism 42 is arranged on the vertical plate 41. An induction device 43 is arranged on the lead screw mechanism 42 and is driven by a servo motor to move horizontally. The induction device 43 includes a telescopic rod 431 driven by a cylinder to move up and down and a proximity switch 432. The end of the telescopic rod 431 is connected with an induction plate 433. A spring is arranged on the telescopic rod 431 to enable reciprocating movement. When the front end of the steel strip 5 touches the telescopic rod 431, the telescopic rod 431 moves backward and drives the induction plate 433 to extend. The proximity switch 432 detects whether the steel strip 5 reaches the predetermined position by detecting whether the induction plate 433 extends, and then sends a signal and controls the cutting device 3 to cut the steel strip 5 through the controller.

[0029] A receiving table 6 for receiving the steel strip 5 is arranged on the fixed-length measuring device 4. The receiving table 6 includes a support plate 61 for receiving the steel strip 5. The support plate 61 can be driven by a cylinder to move in the front-rear direction. A linear guide device 62 is arranged directly below the support plate 61 to make the movement smoother. When the steel strip 5 is cut, the cylinder drives the support plate 61 to move backward. At this time, the steel strip 5 loses support and will fall freely. For the convenience of transportation, a belt conveyor 8 is arranged directly below the receiving table 6, and the steel strip 5 will fall on the belt conveyor 8 and be transported through it.

[0030] An automatic leveling and cutting device for steel strips mentioned in the present utility model realizes automatic control by using a PLC controller. When it is specifically used, according to the length to be cut, the controller controls the servo motor to drive the lead screw mechanism 42 to drive the sensing device 43 to move to a predetermined position. Subsequently, it controls the cylinder to move downward so that the axis of the telescopic rod 431 of the sensing device 43 is in the same plane as the plane where the steel strip 5 is located. After the adjustment is completed, the steel strip coil is placed on the feeding roller 1, and the front end of the steel strip 5 is sent into the leveling device 2. The lower driving roller assembly 21 and the upper pressing roller assembly 22 cooperate with each other to flatten the steel strip 5, and can push the front end of the steel strip 5 in the direction of the cutting device 3 and then enter the receiving table 6. When the front end of the steel strip 5 touches the telescopic rod 431, the telescopic rod 431 drives the sensing plate 433 to extend. After the proximity switch 432 detects the sensing plate 433, it sends a signal to the controller and controls the cutting device 3 to cut the steel strip 5. Subsequently, the cylinder drives the support plate 61 to move backward, and the cut steel strip 5 loses support and will freely fall and land on the belt conveyor 8 directly below the receiving table 6 and be transported away by the conveyor belt, realizing the automatic leveling and cutting of the steel strip coil.

[0031] The embodiments described above are only descriptions of the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. A steel strip automatic leveling and cutting device, characterized in that: The invention comprises a feeding roller (1), a leveling device (2), a cutting device (3) and a fixed-length measuring device (4) which are sequentially arranged along the length direction, wherein the leveling device (2) comprises a lower driving roller assembly (21) and an upper pressing roller assembly (22) which cooperates with the lower driving roller assembly (21) to level the steel strip (5), the fixed-length measuring device (4) is provided with a receiving platform (6) for receiving the steel strip (5), the fixed-length measuring device (4) comprises a vertical plate (41), the vertical plate (41) is provided with a sensing device (43) which moves in the horizontal direction through a screw mechanism (42), the sensing device (43) comprises a telescopic rod (431) which moves up and down through a cylinder drive and a proximity switch (432), the proximity switch (432) detects a position signal of the telescopic rod (431) and controls the cutting device (3) through a controller to cut the steel strip (5).

2. The automatic leveling and cutting device for steel strip according to claim 1 is characterized in that: The lower driving roller assembly (21) comprises a driving roller (211) and a plurality of driven rollers (212) drivingly connected to the driving roller (211); the upper pressing roller assembly (22) comprises an adjusting pressing roller (221) arranged directly above the driving roller (211) and a plurality of floating pressing rollers (222) arranged above the driven rollers (212).

3. The automatic leveling and cutting device for steel strip according to claim 1 is characterized in that: A guide device (7) for guiding the steel strip (5) is provided between the feed roller (1) and the leveling device (2), and between the leveling device (2) and the cutting device (3). The guide device (7) comprises two symmetrically arranged bearing assemblies.

4. The automatic leveling and cutting device for steel strip according to claim 3 is characterized in that: The cutting device (3) comprises a movable knife seat (32) which moves up and down through an oil cylinder (31); a pressure plate (33) for limiting the position of the steel strip (5) is arranged in front of the movable knife seat (32); and a fixed knife seat (34) is arranged directly below the pressure plate (33).

5. The automatic leveling and cutting device for steel strip according to claim 1 is characterized in that: The receiving platform (6) comprises a support plate (61) for receiving the steel strip (5); the support plate (61) is driven by a cylinder and can move in a front-rear direction; a linear guide device (62) is arranged directly below the support plate (61).

6. The automatic leveling and cutting device for steel strip according to claim 5 is characterized in that: A belt conveyor (8) is arranged directly below the receiving platform (6).

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