Front clamping and conveying stabilizing device of circle shear

Abstract

A front pinch stabilizing device of a circle shear is used in the technical field of metallurgical equipment. The lower pinch roll is fixed on the rack through bearing seats at two ends, the upper pinch roll is fixed on the swing arm through bearing seats at two ends, and the stabilizing roll is fixed on the swing arm through bearing seats at two ends; a swing arm support is fixed on the rack, one end of the swing shaft is of a flange plate structure, the swing shaft is fixed on the swing arm support by a flange plate at one end of the swing shaft through a bolt, the other end of the swing shaft is sleeved in a hole of a swing arm, and the swing arm is hinged with the swing arm support through the swing shaft; the swing arm is connected with the piston rod end of the oil cylinder; the cylinder barrel end of the oil cylinder is fixed on the oil cylinder support; the upper pinch roll is connected with a main transmission motor through a ball cage type coupler. According to the utility model, the lower pinch roll, the upper pinch roll and the stabilizing roll are integrated on the swing arm and the rack, so that not only can the plate strip pinch function be realized, but also the plate strip stabilizing function can be well realized, the structure is simple, the processing and manufacturing are convenient, the occupied space is small, and the shearing quality of the plate strip can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a front clamping and stabilizing device for a disc shear. Background Art

[0002] Pinch rollers are a common conveying equipment widely used in various strip production lines. Especially when the strip is threaded on the production line, the pinch roller device plays a very important role. Its working principle is to realize the conveying and positioning of the strip by clamping and conveying the strip. There are two pinch rollers, upper and lower, in the pinch roller device. During the threading process, when the strip enters the pinch roller area, the upper and lower pinch rollers clamp the strip. Once the strip is clamped, the pinch rollers start to rotate, moving the strip along the conveyor line direction to achieve automatic threading.

[0003] In order to improve the efficiency of the plate and strip production line, the disc shears are used to shear the plate and strip at a very high speed. During the high-speed shearing process of the disc shear, it is easy to cause vibration, which affects the shearing quality of the finished product. Usually, a stabilizing roller device is designed before the disc shear. The stabilizing roller device is generally arranged by staggering two to three rollers, and the plate and strip are tensioned by achieving a small tension to reduce the vibration of the plate and strip, thereby improving the shearing quality of the plate and strip.

[0004] Therefore, a pinch roller is usually set in front of the circular shear to facilitate the strip to enter the circular shear, and a stabilizing roller is also required to improve the shearing quality. However, in actual production lines, due to the space limitations of the production plant, two devices cannot be accommodated at the same time. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the invention of the utility model is to provide a front clamping and stabilizing device for a disc shear to improve the shearing quality of the plate strip.

[0006] To achieve the above invention purpose, the lower pinch roller of the utility model is fixed on the frame through bearing seats at both ends, the upper pinch roller is fixed on the swing arm through bearing seats at both ends, and the stabilizing roller is fixed on the swing arm through bearing seats at both ends.

[0007] Furthermore, a swing arm support is fixed to the frame by bolts, one end of the swing shaft is a flange structure, the flange at one end of the swing shaft is bolted to fix the swing shaft to the swing arm support, the other end of the swing shaft is inserted into the hole of the swing arm, and the swing arm and the swing arm support are hinged by the swing shaft.

[0008] Furthermore, the swing arm is connected to the piston rod end of the oil cylinder, the cylinder barrel end of the oil cylinder is fixed on the oil cylinder support, the oil cylinder support is installed on the frame, and the oil cylinder is extended and retracted to drive the swing arm to swing around the swing arm support.

[0009] Furthermore, the upper pinch roller is connected to the main drive motor via a ball cage coupling, and the main drive motor is fixed to the motor support via bolts.

[0010] Furthermore, the upper pinch roller and the stabilizing roller are respectively installed at the two ends of the swing arm, the swing shaft is located between the piston rod end of the cylinder and the stabilizing roller, the piston rod end of the cylinder is located between the upper pinch roller and the swing shaft, and the lower pinch roller is located below the upper pinch roller.

[0011] Furthermore, a plate-passing platform is installed on the frame.

[0012] Compared with the prior art, the disc shear front clamping and stabilizing device is not limited by the spatial position of the production plant, and overcomes the defect that the prior art cannot accommodate the clamping roller device and the stabilizing roller device at the same time. The lower clamping roller, the upper clamping roller, and the stabilizing roller are integrated on the swing arm and the frame, which can not only meet the plate and strip clamping function, but also play a good role in stabilizing the plate and strip. The structure is simple, the processing and manufacturing are convenient, the space occupied is small, and the shearing quality of the plate and strip can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model.

[0014] Figure 2 for Figure 1 Side view of.

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the cylinder in the extended state.

[0016] In the figure: 1. frame; 2. swing arm; 3. swing shaft; 4. swing arm support; 5. upper pinch roller; 6. stabilizing roller; 7. lower pinch roller; 8. oil cylinder; 9. oil cylinder support; 10. motor support; 11. main drive motor; 12. ball cage coupling; 13. plate table; 14. plate belt. DETAILED DESCRIPTION

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, the lower pinch roller 7 of the utility model is fixed on the frame 1 through bearing seats at both ends, the upper pinch roller 5 is fixed on the swing arm 2 through bearing seats at both ends, and the stabilizing roller 6 is fixed on the swing arm 2 through bearing seats at both ends.

[0018] One end of the swing shaft 3 is a flange structure, and the flange at one end of the swing shaft 3 is fixed to the swing arm support 4 with bolts. The other end of the swing shaft 3 is inserted into the hole of the swing arm 2. The swing arm 2 and the swing arm support 4 are hinged through the swing shaft 3, and the swing arm support 4 is fixed to the frame 1 with bolts.

[0019] The swing arm 2 is connected to the piston rod end of the cylinder 8, the cylinder end of the cylinder 8 is fixed on the cylinder support 9, and the cylinder support 9 is installed on the frame 1. The swing arm 2 can be driven to swing back and forth around the swing arm support 4 by the extension and retraction of the cylinder 8.

[0020] The upper pinch roller 5 is connected to the main drive motor 11 through a ball cage coupling 12, and the main drive motor 11 is fixed to the motor support 10 by bolts.

[0021] The upper pinch roller 5 and the stabilizing roller 6 are respectively installed at the two ends of the swing arm 2, the swing shaft 3 is located between the piston rod end of the cylinder 8 and the stabilizing roller 6, the piston rod end of the cylinder 8 is located between the upper pinch roller 5 and the swing shaft 3, the lower pinch roller 7 is located below the upper pinch roller 5, and the plate passing platform 13 is installed on the frame 1.

[0022] During the belt threading process, the oil cylinder 8 retracts, driving the swing arm 2 to swing counterclockwise, and the upper pinch roller 5 and the lower pinch roller 7 clamp the plate belt 14. The main drive motor 11 drives the upper pinch roller 5 to rotate, and then drives the plate belt 14 to move forward to achieve belt threading. The plate platform 13 is closed on the frame 1, providing support and guidance for the plate belt 14 during the belt threading process, so that the plate belt 14 can enter the equipment more smoothly.

[0023] During normal operation of the plate strip, the oil cylinder 8 extends out, driving the swing seat 2 to swing clockwise, the upper pinch roller 5 separates from the lower pinch roller 7, the stabilizing roller 6 contacts the plate surface and presses down the plate strip 14, forming a certain wrap angle with the plate strip surface on the lower pinch roller 7, providing a certain tension for the disc shear to ensure the stability of the disc shear.

Claims

1. A disc shear front clamping and stabilizing device, characterized in that: The lower pinch roller (7) is fixed to the frame (1) through bearing seats at both ends, the upper pinch roller (5) is fixed to the swing arm (2) through bearing seats at both ends, and the stabilizing roller (6) is fixed to the swing arm (2) through bearing seats at both ends; A swing arm support (4) is fixed to the frame (1) by bolts, one end of the swing shaft (3) is a flange structure, the flange at one end of the swing shaft (3) is fixed to the swing arm support (4) by bolts, the other end of the swing shaft (3) is sleeved in the hole of the swing arm (2), and the swing arm (2) and the swing arm support (4) are hinged by the swing shaft (3); The swing arm (2) is connected to the piston rod end of the oil cylinder (8), the cylinder barrel end of the oil cylinder (8) is fixed on the oil cylinder support (9), the oil cylinder support (9) is mounted on the frame (1), and the oil cylinder (8) is extended and retracted to drive the swing arm (2) to swing around the swing arm support (4); The upper pinch roller (5) is connected to the main drive motor (11) via a ball cage coupling (12), and the main drive motor (11) is fixed to the motor support (10) via bolts; The upper pinch roller (5) and the stabilizing roller (6) are respectively mounted on the two ends of the swing arm (2); the swing shaft (3) is located between the piston rod end of the oil cylinder (8) and the stabilizing roller (6); the piston rod end of the oil cylinder (8) is located between the upper pinch roller (5) and the swing shaft (3); and the lower pinch roller (7) is located below the upper pinch roller (5).

2. A disc shear front clamping and stabilizing device according to claim 1, characterized in that: The frame (1) is provided with a plate-passing platform (13).

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