Steel plate slitting line tension device

By setting up a conveyor mechanism for the lower plate-through groove and the upper plate-through groove in the longitudinal shear, the tension is adjusted using the speed difference of the dry and wet belts, and combined with electric push rods and limit rollers, the quality and stability problems of the longitudinal shears when cutting oily and dry plates are solved, and effective tension adjustment and offset prevention of the two plates are achieved.

CN223188611UActive Publication Date: 2025-08-05POSCO (LIAONING) AUTOMOTIVE PROCESSING CENT CO LTD
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Patent Information

Application Number
CN202421723220.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-20
Publication Date
2025-08-05
Estimated Expiration
2034-07-20

AI Technical Summary

Technical Problem

When existing longitudinal shearers cut surface-coated automobile steel plates, oil is prone to adhere to the tension device, which affects the processing quality and is inconvenient to cut sheets that cannot be covered with oil. At the same time, it is impossible to effectively avoid sheet deviation.

Method used

A steel plate longitudinal thread shear tension device is designed, using a conveying mechanism in the lower plate groove and the upper plate groove to adjust the tension through the differential rotation speed of the dry and wet belts, and the side of the plate is limited in combination with an electric push rod and a limit roller to ensure the stable conveying of the plate.

Benefits of technology

The tension adjustment of dry and oily plates is achieved, which avoids the oil adhesion affecting the processing quality, and effectively prevents the plate from being offset, improving the applicability and production stability of the longitudinal shearing machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tension device for a steel plate slitting line, which belongs to the technical field of steel plate processing equipment and comprises a rack, lower plate penetrating grooves are arranged below the front portion and the rear portion of the rack, and lower conveying mechanisms are arranged in inner cavities of the two lower plate penetrating grooves. According to the utility model, both the front part and the rear part of the rack are provided with the lower plate penetrating grooves and the upper plate penetrating grooves, the two upper plate penetrating grooves are internally provided with the upper conveying mechanisms, and the tension of an oily plate is adjusted by utilizing the rotating speed difference between the lower wet-type belts and the upper wet-type belts of the two upper conveying mechanisms; the upper conveying mechanism and the lower conveying mechanism are arranged in the two lower plate penetrating grooves correspondingly, the tension of the dry plate is adjusted through the rotating speed difference of the lower dry belt and the upper dry belt of the two lower conveying mechanisms, the device has the function of adjusting the tension of the dry plate and the tension of the oily plate, and the practicability of the device is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of steel plate processing equipment, in particular to a steel plate slitting line tension device. Background Art

[0002] A slitting machine, also known as a slitting line, slitting machine, or slitting machine, is a type of metal slitting equipment used to cut metal strips longitudinally and rewind the resulting strips into coils. It features easy operation, high cutting quality, high material utilization, and stepless speed regulation. During operation, a tensioning device is required to ensure sheet flatness and the smooth operation of the continuous production process. This ensures that the processed sheet flows evenly across the production line, preventing accumulation and breakage. Existing slitting machines, when cutting special sheet materials, such as oiled automotive steel, can also adhere to their tensioning devices. However, when subsequently cutting sheet materials that cannot be oiled (such as those used in home appliance production and aluminum), the oil from the tensioning device can easily adhere to the non-oiled sheet material, affecting processing quality. Adding additional slitting machines increases costs, and existing tensioning devices are inconvenient for limiting the sides of the conveyed sheet and cannot prevent sheet deviation. For this purpose, we proposed a steel plate slitting line tension device. Utility Model Content

[0003] In view of the problems mentioned in the above background technology, the purpose of the present invention is to provide a steel plate slitting line tension device.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A steel plate longitudinal shearing line tension device comprises a frame, lower plate-passing grooves are provided at the bottom of the front and rear of the frame, the inner cavities of the two lower plate-passing grooves are provided with lower conveying mechanisms, upper plate-passing grooves are provided at the top of the front and rear of the frame, the inner cavities of the two upper plate-passing grooves are provided with upper conveying mechanisms, mounting frames are fixedly connected on both sides of the frame, two electric push rods are fixedly installed on the two mounting frames, the output ends of the electric push rods are fixedly connected to a limiting frame, and a plurality of limiting rollers are rotatably connected to the inner side of the limiting frame.

[0006] As a preferred solution of the present invention, the lower conveying mechanism includes a first hydraulic cylinder fixedly installed at the bottom of the inner cavity of the lower through-plate trough and a second hydraulic cylinder fixedly installed at the top of the inner cavity of the lower through-plate trough, the top of the first hydraulic cylinder is fixedly connected to the first U-shaped frame, the inner side of the first U-shaped frame is rotatably connected to two first pulleys, the outer sides of the two first pulleys are sleeved with a lower dry belt, the end of the first U-shaped frame is fixedly installed with a first motor, the output shaft of the first motor is connected to one end of a first pulley rotating shaft, the bottom end of the second hydraulic cylinder is fixedly connected to the second U-shaped frame, the inner side of the second U-shaped frame is rotatably connected to two second pulleys, the outer sides of the two second pulleys are sleeved with an upper dry belt, the end of the second U-shaped frame is fixedly installed with a second motor, and the output shaft of the second motor is connected to one end of a second pulley rotating shaft.

[0007] As a preferred solution of the present invention, the upper conveying mechanism includes a third hydraulic cylinder fixedly installed at the bottom of the inner cavity of the upper through-plate groove and a fourth hydraulic cylinder fixedly installed at the top of the inner cavity of the upper through-plate groove, the top of the third hydraulic cylinder is fixedly connected to a third U-shaped frame, the inner side of the third U-shaped frame is rotatably connected to two third pulleys, the outer sides of the two third pulleys are sleeved with a lower wet belt, and the end of the third U-shaped frame is fixedly installed with a third motor, the output shaft of the third motor is connected to one end of a third pulley rotating shaft.

[0008] As a preferred solution of the present invention, a control panel is fixedly installed on the outside of the frame, and the control panel is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the first motor, the second motor, the third motor, the fourth motor and the electric push rod respectively.

[0009] As a preferred solution of the present invention, the side surface of the lower dry belt is in contact with the inner side surface of the first U-shaped frame, and the side surface of the upper dry belt is in contact with the inner side surface of the second U-shaped frame.

[0010] As a preferred solution of the present invention, the side surface of the lower wet belt is in contact with the inner side surface of the third U-shaped frame, and the side surface of the upper wet belt is in contact with the inner side surface of the fourth U-shaped frame.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] (1) In the present invention, a lower plate-passing trough and an upper plate-passing trough are provided at the front and rear of the frame, and an upper conveying mechanism is provided in each of the two upper plate-passing troughs. The tension of the oily plate is adjusted by utilizing the speed difference between the lower wet belt and the upper wet belt included in the two upper conveying mechanisms. An upper and lower conveying mechanism is provided in each of the two lower plate-passing troughs. The tension of the dry plate is adjusted by utilizing the speed difference between the lower dry belt and the upper dry belt included in the two lower conveying mechanisms. The device has the function of adjusting the tension of the dry plate and the oily plate, thereby improving its practicality.

[0013] (2) In the present invention, by using an electric push rod, a limit frame and a limit roller in combination, when the tension of the plate is adjusted by using two lower conveying mechanisms or two upper conveying mechanisms, the electric push rod is used to drive the limit roller and the side of the plate to contact each other, and the limit roller is used to limit the side of the plate to avoid the moving plate from being skewed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the limit frame of the utility model;

[0017] Figure 4 This is a structural diagram of the lower conveying mechanism of the utility model;

[0018] Figure 5 It is a structural diagram of the upper conveying mechanism of the present utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Frame; 2. Lower plate-passing trough; 3. Upper plate-passing trough; 4. Lower conveying mechanism; 5. Upper conveying mechanism; 6. Mounting frame; 7. Electric push rod; 8. Limiting frame; 9. Limiting roller; 10. Control panel; 11. First hydraulic cylinder; 12. Second hydraulic cylinder; 13. First U-shaped frame; 14. Second U-shaped frame; 15. First pulley; 16. Lower dry belt; 17. First motor; 18. Second pulley; 19. Upper dry belt; 20. Second motor; 21. Third hydraulic cylinder; 22. Fourth hydraulic cylinder; 23. Third U-shaped frame; 24. Fourth U-shaped frame; 25. Third pulley; 26. Lower wet belt; 27. Third motor; 28. Fourth pulley; 29. Upper wet belt; 30. Fourth motor. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Example:

[0025] See also Figure 1-5 A steel plate longitudinal shearing line tension device includes a frame 1, lower plate-passing grooves 2 are provided at the bottom of the front and rear of the frame 1, the inner cavities of the two lower plate-passing grooves 2 are provided with lower conveying mechanisms 4, upper plate-passing grooves 3 are provided at the top of the front and rear of the frame 1, the inner cavities of the two upper plate-passing grooves 3 are provided with upper conveying mechanisms 5, mounting frames 6 are fixedly connected on both sides of the frame 1, two electric push rods 7 are fixedly installed on the two mounting frames 6, the output end of the electric push rod 7 is fixedly connected to a limiting frame 8, and a plurality of limiting rollers 9 are rotatably connected to the inner side of the limiting frame 8.

[0026] In this embodiment, the heights of the plurality of limit frames 8 are respectively adapted to the heights of the lower conveying mechanism 4 and the upper conveying mechanism 5 , ensuring that the limit rollers 9 inside the limit frames 8 can limit the side of the steel plate.

[0027] For details, please refer to Figure 1 and Figure 4The lower conveying mechanism 4 includes a first hydraulic cylinder 11 fixedly installed at the bottom of the inner cavity of the lower through-plate groove 2 and a second hydraulic cylinder 12 fixedly installed at the top of the inner cavity of the lower through-plate groove 2. The top of the first hydraulic cylinder 11 is fixedly connected to a first U-shaped frame 13. The inner side of the first U-shaped frame 13 is rotatably connected to two first pulleys 15. The outer sides of the two first pulleys 15 are sleeved with a lower dry belt 16. The end of the first U-shaped frame 13 is fixedly installed with a first motor 17. The output shaft of the first motor 17 is connected to one end of the rotating shaft of a first pulley 15. The bottom end of the second hydraulic cylinder 12 is fixedly connected to a second U-shaped frame 14. The inner side of the second U-shaped frame 14 is rotatably connected to two second pulleys 18. The outer sides of the two second pulleys 18 are sleeved with an upper dry belt 19. The end of the second U-shaped frame 14 is fixedly installed with a second motor 20. The output shaft of the second motor 20 is connected to one end of the rotating shaft of a second pulley 18.

[0028] In this embodiment, the lower dry belt 16 is located directly below the upper dry belt 19 , and the steel plate is extruded by the cooperation of the lower dry belt 16 and the upper dry belt 19 .

[0029] For details, please refer to Figures 1 to 5 The upper conveying mechanism 5 includes a third hydraulic cylinder 21 fixedly installed at the bottom of the inner cavity of the upper through-plate groove 3 and a fourth hydraulic cylinder 22 fixedly installed at the top of the inner cavity of the upper through-plate groove 3. The top of the third hydraulic cylinder 21 is fixedly connected to a third U-shaped frame 23. The inner side of the third U-shaped frame 23 is rotatably connected to two third pulleys 25. The outer sides of the two third pulleys 25 are sleeved with a lower wet belt 26. The end of the third U-shaped frame 23 is fixedly installed with a third motor 27. The output shaft of the third motor 27 is connected to one end of the rotating shaft of a third pulley 25. The bottom end of the fourth hydraulic cylinder 22 is fixedly connected to a fourth U-shaped frame 24. The inner side of the fourth U-shaped frame 24 is rotatably connected to two fourth pulleys 28. The outer sides of the two fourth pulleys 28 are sleeved with an upper wet belt 29. The end of the fourth U-shaped frame 24 is fixedly installed with a fourth motor 30. The output shaft of the fourth motor 30 is connected to one end of the rotating shaft of a fourth pulley 28.

[0030] In this embodiment, the lower wet belt 26 is located directly below the upper wet belt 29. The steel plate is extruded by the cooperation of the lower wet belt 26 and the upper wet belt 29. The lower wet belt 26 and the upper wet belt 29 are felt belts.

[0031] For details, please refer to Figures 1 to 5 A control panel 10 is fixedly installed on the outside of the frame 1, and the control panel 10 is electrically connected to the first hydraulic cylinder 11, the second hydraulic cylinder 12, the third hydraulic cylinder 21, the fourth hydraulic cylinder 22, the first motor 17, the second motor 20, the third motor 27, the fourth motor 30 and the electric push rod 7 respectively.

[0032] In this embodiment, the control panel 10 is used to control the first hydraulic cylinder 11 , the second hydraulic cylinder 12 , the third hydraulic cylinder 21 , the fourth hydraulic cylinder 22 , the first motor 17 , the second motor 20 , the third motor 27 , the fourth motor 30 and the electric push rod 7 .

[0033] For details, please refer to Figure 1 and Figure 4 The side surface of the lower dry belt 16 is in contact with the inner side surface of the first U-shaped frame 13, and the side surface of the upper dry belt 19 is in contact with the inner side surface of the second U-shaped frame 14.

[0034] In this embodiment, the inner wall of the first U-shaped frame 13 is used to limit the lower dry belt 16, and the inner wall of the second U-shaped frame 14 is used to limit the upper dry belt 19, thereby ensuring the stability of the lower dry belt 16 and the upper dry belt 19.

[0035] For details, please refer to Figure 1 and Figure 5 The side surface of the lower wet belt 26 is in contact with the inner side surface of the third U-shaped frame 23 , and the side surface of the upper wet belt 29 is in contact with the inner side surface of the fourth U-shaped frame 24 .

[0036] In this embodiment, the inner wall of the third U-shaped frame 23 is used to limit the lower wet belt 26, and the inner wall of the fourth U-shaped frame 24 is used to limit the upper wet belt 29, thereby ensuring the stability of the lower wet belt 26 and the upper wet belt 29.

[0037] Working principle: when in use, when it is necessary to cut the oily plate, the oily plate is made to pass through the inner sides of the two sets of lower wet belts 26 and upper wet belts 29, the third hydraulic cylinder 21 is started to drive the third U-shaped frame 23 and the lower wet belt 26 to move upward, the fourth hydraulic cylinder 22 is started to drive the fourth U-shaped frame 24 and the upper wet belt 29 to move downward, and the oily plate is squeezed by the lower wet belt 26 and the upper wet belt 29. In addition, the fourth motor 30 is started to drive the fourth pulley 28 and the upper wet belt 29 to rotate clockwise, and the third motor 27 is used to drive the third pulley 25 and the lower wet belt 26 to rotate counterclockwise, so that the lower wet belts 26 and the upper wet belts 29 arranged above and below have the same speed, and the oily plate is conveyed by the cooperation of the lower wet belt 26 and the upper wet belt 29. In addition, there is a speed difference between the lower wet belt 26 and the upper wet belt 29 in the inner cavities of the two upper plate-passing grooves 3 on the front and rear of the frame 1, and the tension of the plate is adjusted by the speed difference.

[0038] When the dry plate needs to be cut, the oily plate is made to pass through the inner sides of the two sets of lower dry belts 16 and upper dry belts 19, the first hydraulic cylinder 11 is started to drive the first U-shaped frame 13 and the lower dry belt 16 to move upward, the second hydraulic cylinder 12 is started to drive the second U-shaped frame 14 and the upper dry belt 19 to move downward, and the dry plate is squeezed by the lower dry belt 16 and the upper dry belt 19. In addition, the second motor 20 is started to drive the second pulley 18 and the upper dry belt 19 to rotate clockwise, and the first motor 17 is used to drive the first pulley 15 and the lower dry belt 16 to rotate counterclockwise, so that the lower dry belts 16 and the upper dry belts 19 arranged above and below have the same speed, and the dry plate is transported by the cooperation of the lower dry belt 16 and the upper dry belt 19. In addition, there is a speed difference between the lower dry belt 16 and the upper dry belt 19 in the inner cavities of the two lower plate-passing grooves 2 in the front and rear of the frame 1, and the tension of the plate is adjusted by the speed difference.

[0039] In addition, during the transportation of dry or oily plates, the electric push rods 7 corresponding to the sides of the plates are started respectively, and the electric push rods 7 are used to drive the limiting frame 8 and the limiting roller 9 to move to a position close to the plates, and the side of the limiting roller 9 is made to fit the side of the plates, and the limiting roller 9 is used to limit the side of the plates to avoid deviation during transportation.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel plate slitting line tension device, comprising a frame (1), characterized in that: The front and rear parts of the frame (1) are both provided with lower plate-passing grooves (2), and the inner cavities of the two lower plate-passing grooves (2) are both provided with lower conveying mechanisms (4). The front and rear parts of the frame (1) are both provided with upper plate-passing grooves (3), and the inner cavities of the two upper plate-passing grooves (3) are both provided with upper conveying mechanisms (5). The two sides of the frame (1) are respectively fixedly connected with mounting frames (6), and two electric push rods (7) are respectively fixedly installed on the two mounting frames (6). The output end of the electric push rod (7) is fixedly connected to a limiting frame (8), and the inner side of the limiting frame (8) is rotatably connected to a plurality of limiting rollers (9).

2. A steel plate slitting line tension device according to claim 1, characterized in that: The lower conveying mechanism (4) comprises a first hydraulic cylinder (11) fixedly mounted on the bottom of the inner cavity of the lower through-plate groove (2) and a second hydraulic cylinder (12) fixedly mounted on the top of the inner cavity of the lower through-plate groove (2), the top end of the first hydraulic cylinder (11) is fixedly connected to a first U-shaped frame (13), the inner side of the first U-shaped frame (13) is rotatably connected to two first pulleys (15), the outer sides of the two first pulleys (15) are sleeved with a lower dry belt (16), the end of the first U-shaped frame (13) is fixedly mounted with a first motor (17), The output shaft of the first motor (17) is connected to one end of a rotating shaft of a first pulley (15); the bottom end of the second hydraulic cylinder (12) is fixedly connected to a second U-shaped frame (14); the inner side of the second U-shaped frame (14) is rotatably connected to two second pulleys (18); the outer sides of the two second pulleys (18) are sleeved with an upper dry belt (19); the end of the second U-shaped frame (14) is fixedly installed with a second motor (20); the output shaft of the second motor (20) is connected to one end of a rotating shaft of a second pulley (18).

3. A steel plate slitting line tension device according to claim 2, characterized in that: The upper conveying mechanism (5) comprises a third hydraulic cylinder (21) fixedly mounted on the bottom of the inner cavity of the upper through-plate groove (3) and a fourth hydraulic cylinder (22) fixedly mounted on the top of the inner cavity of the upper through-plate groove (3); the top end of the third hydraulic cylinder (21) is fixedly connected to a third U-shaped frame (23); the inner side of the third U-shaped frame (23) is rotatably connected to two third pulleys (25); the outer sides of the two third pulleys (25) are sleeved with a lower wet belt (26); the end of the third U-shaped frame (23) is fixedly mounted with a third motor (27); The output shaft of the third motor (27) is connected to one end of a rotating shaft of a third pulley (25); the bottom end of the fourth hydraulic cylinder (22) is fixedly connected to a fourth U-shaped frame (24); the inner side of the fourth U-shaped frame (24) is rotatably connected to two fourth pulleys (28); the outer sides of the two fourth pulleys (28) are sleeved with an upper wet belt (29); the end of the fourth U-shaped frame (24) is fixedly installed with a fourth motor (30); the output shaft of the fourth motor (30) is connected to one end of a rotating shaft of a fourth pulley (28).

4. A steel plate slitting line tension device according to claim 3, characterized in that: A control panel (10) is fixedly mounted on the outer side of the frame (1), and the control panel (10) is electrically connected to the first hydraulic cylinder (11), the second hydraulic cylinder (12), the third hydraulic cylinder (21), the fourth hydraulic cylinder (22), the first motor (17), the second motor (20), the third motor (27), the fourth motor (30) and the electric push rod (7).

5. The steel plate slitting line tension device according to claim 2, characterized in that: The side surface of the lower dry belt (16) is in contact with the inner side surface of the first U-shaped frame (13), and the side surface of the upper dry belt (19) is in contact with the inner side surface of the second U-shaped frame (14).

6. The steel plate slitting line tension device according to claim 3, characterized in that: The side surface of the lower wet belt (26) is in contact with the inner side surface of the third U-shaped frame (23), and the side surface of the upper wet belt (29) is in contact with the inner side surface of the fourth U-shaped frame (24).