Steel plate straightening machine with variable roller spacing

Abstract

The utility model belongs to the field of straightening machines, and particularly relates to a steel plate straightening machine with variable roller spacing, which comprises a frame, a plurality of rows of vertical rails are symmetrically arranged on two sides of the frame, a transverse rail is serially connected onto the vertical rail on each side, and a first roller seat and a second roller seat which are arranged up and down are slidably arranged on each row of vertical rails. A first nut seat and a second nut seat which slide on the transverse rail are arranged on two sides of the first roller seat and the second roller seat, and each row of the first roller seat and the second roller seat is provided with a connecting rod for connecting the first nut seat and the second nut seat; two-way lead screws matched with the first nut seats or the second nut seats on the sides and rotating mechanisms for driving the two-way lead screws to rotate are arranged on the transverse rails on the two sides; an upper compression roller is arranged between the symmetrical first roller seats on the two sides, and a lower compression roller, a first driving mechanism for driving the upper compression roller and a second driving mechanism for driving the lower compression roller are arranged between the second roller seats. The straightening machine can adjust the roller distance according to the thickness of the steel plate, and efficient straightening treatment on the steel plates with different thicknesses is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of straightening machines, in particular to a steel plate straightening machine with a variable roller distance. Background Art

[0002] In the steel processing and manufacturing industry, a steel plate straightening machine is one of the key equipment to ensure the quality of steel plates. It uses a series of rollers to squeeze the steel plate to eliminate the bending or surface unevenness caused by the steel plate during rolling, transportation, or storage, restoring the steel plate to a flat surface to meet the requirements of subsequent processing or use.

[0003] However, existing steel plate straightening machines have limitations in their design and use. Traditional steel plate straightening machines typically employ a fixed roller spacing design, meaning the distance between the upper and lower rollers is fixed and cannot be adjusted to the thickness of the steel plate. This design results in different steel plate straightening machine models being limited to processing steel plates of specific thicknesses. Whenever a different thickness is required, the corresponding straightening machine must be replaced.

[0004] This fixed roller spacing design not only limits the use of plate straighteners but also increases production costs and the difficulty of equipment storage and maintenance. First, to cover different plate thicknesses, manufacturers need to produce multiple models of straighteners, which increases the complexity and cost of the production line. Second, users need to purchase and store multiple models of straighteners to meet the needs of straightening steel plates of varying thicknesses, which increases investment and management costs.

[0005] In addition, frequent replacement of straighteners will affect the continuity and stability of the production line and reduce production efficiency. In the process of replacing straighteners, it is necessary to stop the machine, disassemble, install and debug. These operations are not only time-consuming and labor-intensive, but may also interfere with the normal operation of the production line.

[0006] Therefore, designing a steel plate straightening machine with variable roller spacing has important practical significance and market prospects. Summary of the Invention

[0007] In view of the above-mentioned deficiencies in the prior art, the utility model provides a steel plate straightening machine with a variable roller distance to solve the above-mentioned problems.

[0008] The utility model discloses a steel plate straightening machine with a variable roller spacing, comprising a frame, wherein a plurality of rows of vertical rails are symmetrically arranged on both sides of the frame, a first roller seat and a second roller seat are slidably arranged at the upper and lower ends of each row of vertical rails, a transverse rail connected in series with the vertical rails on one side is arranged on both sides of the vertical rails in each row, a pair of first nut seats and second nut seats are respectively slid on the transverse rails on both sides of each row of vertical rails, and a connecting rod connecting the first nut seats and the second nut seats on both sides is provided on each row of the first roller seats and the second roller seats;

[0009] A bidirectional lead screw parallel to the cross rails on both sides is provided, and the bidirectional lead screw is provided with a plurality of sections of threads, each section of the threads is connected to a first nut seat or a second nut seat, and the threads of adjacent sections have opposite rotation directions; a rotating mechanism for driving the bidirectional lead screw to rotate is provided on the frame;

[0010] An upper pressure roller is arranged between the first roller seats symmetrical on both sides, and a lower pressure roller is arranged between the second roller seats symmetrical on both sides. A transmission part is provided between all the upper pressure rollers and all the lower pressure rollers. A first driving mechanism for driving the upper pressure roller is provided on one of the first roller seats, and a second driving mechanism for driving the lower pressure roller is provided on one of the second roller seats. The upper pressure roller and the lower pressure roller have opposite directions.

[0011] Furthermore, the bidirectional screw on each side includes a first screw and a second screw arranged parallel to each other above and below, the rotation direction of each corresponding thread segment of the first screw and the second screw are opposite, a first gear is provided on the first screw, and a second gear meshing with the first gear is provided on the second screw.

[0012] Furthermore, the rotating mechanism includes a hydraulic rod vertically fixed on the frame, a rack is provided on the telescopic end of the hydraulic rod, a third gear meshing with the rack is provided at the end of one of the first screws, a sprocket is provided at the end of each of the first screws on both sides, and a chain is provided between the two sprockets.

[0013] Furthermore, the diameters of the upper pressing rollers and the lower pressing rollers in each row decrease successively from one end to the other end, and the diameters of the upper pressing rollers and the lower pressing rollers corresponding to each other are the same.

[0014] Furthermore, an extension support frame corresponding to one end of the cross rail is provided on the frame.

[0015] Furthermore, a row of support rollers is provided on the top of the extended support frame.

[0016] Furthermore, the first driving mechanism and the second driving mechanism are reduction motors.

[0017] Furthermore, the transmission part is a synchronous belt, and one end of the upper pressure roller and the lower pressure roller are both provided with a synchronous wheel adapted to the synchronous belt.

[0018] Compared with the existing technology, this straightening machine can adjust the roller spacing according to the thickness of the steel plate, realizing efficient straightening treatment of steel plates of different thicknesses, while improving the versatility and flexibility of the equipment, reducing production costs and management difficulty, and improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 for Figure 1 A magnified view of the local detail A;

[0021] Figure 3 This is a left side view of the present invention after removing the extended support frame;

[0022] Figure 4 It is a left side cross-sectional view of the present invention.

[0023] In the figure: 1. frame; 2. vertical rail; 3. first roller seat; 4. second roller seat; 5. horizontal rail; 6. first nut seat; 7. second nut seat; 8. connecting rod; 9. upper pressure roller; 10. lower pressure roller; 11. transmission part; 12. first driving mechanism; 13. second driving mechanism; 14. first lead screw; 15. second lead screw; 16. first gear; 17. second gear; 18. hydraulic rod; 19. rack; 20. third gear; 21. sprocket; 22. chain; 23. extension support frame; 24. support roller; 25. synchronous wheel. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, Figures 1 to 4 The embodiments of the present invention will be explained in detail.

[0025] It should be noted that the directions “front, back, left, right, up, down” mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up and down” are used as the reference.

[0026] See also Figures 1 to 4 The present invention provides a steel plate straightening machine with a variable roller gap, which primarily comprises a frame 1. A plurality of vertical rails 2 are symmetrically arranged on both sides of the frame 1. A first roller seat 3 and a second roller seat 4 are slidably mounted on the upper and lower ends of each vertical rail 2, respectively. These roller seats can slide freely on the vertical rails 2, thereby changing their relative positions.

[0027] In order to control the movement of the first roller seat 3 and the second roller seat 4, the straightening machine is provided with a pair of first nut seats 6 and second nut seats 7 sliding on the transverse rail 5 on both sides of each column of vertical rails 2. Each column of the first roller seat 3 and the second roller seat 4 is provided with a connecting rod 8 connecting the first nut seats 6 and the second nut seats 7 on both sides to ensure that the roller seats on both sides can move synchronously.

[0028] To precisely adjust the roller gap, the straightening machine features parallel bidirectional screws on both sides of the horizontal rails 5. These screws have several segments of thread, each connected to either the first nut holder 6 or the second nut holder 7. Adjacent segments have opposite thread rotations. As the bidirectional screws rotate, the opposite thread rotations of the adjacent segments simultaneously push the first and second nut holders 6 and 7 in opposite directions. This, in turn, drives the first and second roller holders 3 and 4 synchronously via the connecting rod 8, thereby adjusting the roller gap between the upper and lower rollers 9 and 10.

[0029] In the preferred technical solution of this embodiment, in order to realize the rotation of the bidirectional screw, the straightening machine is provided with a rotating mechanism on the frame 1 to drive the rotation of the bidirectional screw. Specifically, the rotating mechanism may include a hydraulic rod 18 vertically fixed to the frame 1, and a rack 19 is provided on the telescopic end of the hydraulic rod 18. A third gear 20 is provided at the end of one of the first screws 14, which is engaged with the rack 19. A sprocket 21 is provided at the end of each of the first screws 14 on both sides, and a chain 22 is provided between the two sprockets 21. When the hydraulic rod 18 is extended or retracted, the rack 19 drives the third gear 20 to rotate, and then drives the bidirectional screws on both sides to rotate synchronously through the transmission of the sprocket 21 and the chain 22.

[0030] In this preferred technical solution, an upper pressure roller 9 is disposed between two symmetrical first roller seats 3, and a lower pressure roller 10 is disposed between two symmetrical second roller seats 4. A transmission unit 11 connects all upper pressure rollers 9 and all lower pressure rollers 10 to achieve synchronous rotation. A first drive mechanism 12 driving a particular upper pressure roller 9 is provided on one of the first roller seats 3, and a second drive mechanism 13 driving a particular lower pressure roller 10 is provided on one of the second roller seats 4. To achieve continuous straightening of the steel plate, the upper pressure rollers 9 and lower pressure rollers 10 in this straightening machine rotate in opposite directions.

[0031] In this preferred embodiment, to further enhance the straightening effect, the diameters of each row of upper and lower rollers 9, 10 in the straightener decrease from one end to the other, with the corresponding upper and lower rollers 9, 10 having the same diameter. This design allows the steel plate to be subjected to gradually greater pressure as it passes through, achieving better straightening results.

[0032] In this preferred embodiment, to increase the stability and load-bearing capacity of the straightener, an extended support frame 23 is provided on the frame 1, corresponding to one end of the cross rail 5, specifically at the end with the larger diameter of the upper and lower pressure rollers 9 and 10. A row of support rollers 24 is installed on top of the extended support frame 23 to support the steel plate after it passes through the straightener.

[0033] In this embodiment, the preferred technical solution is that in this straightening machine, the first drive mechanism 12 and the second drive mechanism 13 are preferably reduction motors to ensure stable rotation of the pressure rollers and sufficient driving force. The transmission part 11 is preferably a synchronous belt, and one end of each of the upper pressure roller 9 and the lower pressure roller 10 is provided with a synchronous pulley 25 adapted to the synchronous belt to achieve synchronous rotation between the pressure rollers.

[0034] The usage and principle of this utility model:

[0035] When using this straightening machine, the roller gap is first adjusted according to the thickness of the steel plate being straightened. By controlling the extension and retraction of hydraulic rod 18, rack 19 rotates third gear 20, which in turn, through sprocket 21 and chain 22, drives all bidirectional lead screws to rotate synchronously. Because adjacent segments of thread have opposite rotational directions, they simultaneously push first nut holder 6 and second nut holder 7 in opposite directions. This, in turn, drives first roller holder 3 and second roller holder 4 synchronously via connecting rod 8, thereby adjusting the roller gap between upper roller 9 and lower roller 10 to the desired position.

[0036] The steel sheet to be straightened is then fed into the straightening machine from the smaller diameter end of the upper and lower rollers 9, 10. The first and second drive mechanisms 12, 13 are activated, causing the upper and lower rollers 9, 10 to rotate in opposite directions. As the steel sheet passes through the upper and lower rollers 9, 10, it is squeezed and gradually flattened.

[0037] When the steel plate has completely passed through the straightening machine, it falls onto the expansion support frame to obtain a flat steel plate product. At this time, the first drive mechanism 12 and the second drive mechanism 13 can be closed, and the roller distance can be adjusted to the appropriate position of the next steel plate by the hydraulic rod 18.

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel plate straightening machine with variable roller spacing, characterized by: The invention comprises a frame (1), wherein a plurality of vertical rails (2) are symmetrically arranged on both sides of the frame (1), a first roller seat (3) and a second roller seat (4) are respectively slidably arranged at the upper and lower ends of each vertical rail (2), a transverse rail (5) connected in series with the vertical rail (2) on one side is arranged on both sides of the vertical rail (2), a pair of first nut seats (6) and second nut seats (7) respectively sliding on the transverse rail (5) are arranged on both sides of each vertical rail (2), and a connecting rod (8) connecting the first nut seats (6) and the second nut seats (7) on both sides is provided on each first roller seat (3) and the second roller seat (4); The horizontal rails (5) on both sides are provided with bidirectional screws parallel thereto, and the bidirectional screws are provided with a plurality of sections of threads, each section of the threads is respectively connected to a first nut seat (6) or a second nut seat (7), and the threads of adjacent sections have opposite rotation directions; the frame (1) is provided with a rotating mechanism for driving the bidirectional screws to rotate; An upper pressure roller (9) is provided between the first roller seats (3) symmetrical on both sides, and a lower pressure roller (10) is provided between the second roller seats (4) symmetrical on both sides. A transmission part (11) is provided between all the upper pressure rollers (9) and all the lower pressure rollers (10). A first driving mechanism (12) for driving the upper pressure roller (9) is provided on one of the first roller seats (3), and a second driving mechanism (13) for driving the lower pressure roller (10) is provided on one of the second roller seats (4). The upper pressure roller (9) and the lower pressure roller (10) rotate in opposite directions.

2. A steel plate straightening machine with a variable roller gap as claimed in claim 1, characterized in that: The bidirectional screw on each side includes a first screw (14) and a second screw (15) arranged in parallel above and below, the rotation direction of each corresponding thread section of the first screw (14) and the second screw (15) above and below is opposite, the first screw (14) is provided with a first gear (16), and the second screw (15) is provided with a second gear (17) meshing with the first gear (16).

3. A steel plate straightening machine with a variable roller gap as claimed in claim 2, characterized in that: The rotating mechanism comprises a hydraulic rod (18) vertically fixed on the frame (1), a rack (19) is provided on the telescopic end of the hydraulic rod (18), a third gear (20) meshing with the rack (19) is provided at the end of one of the first screws (14), a sprocket (21) is provided at the end of each of the first screws (14) on both sides, and a chain (22) is provided between the two sprockets (21) for connection.

4. A steel plate straightening machine with a variable roller gap as claimed in claim 1, characterized in that: The diameters of the upper pressing rollers (9) and lower pressing rollers (10) in each row decrease from one end to the other end, and the diameters of the upper pressing rollers (9) and lower pressing rollers (10) corresponding to the upper and lower parts are the same.

5. A steel plate straightening machine with variable roller gap as claimed in claim 1, characterized in that: An extended support frame (23) corresponding to one end of the transverse rail (5) is provided on the frame (1).

6. A steel plate straightening machine with variable roller gap as claimed in claim 5, characterized in that: A row of support rollers (24) is provided on the top of the extended support frame (23).

7. A steel plate straightening machine with variable roller gap as claimed in claim 1, characterized in that: The first drive mechanism (12) and the second drive mechanism (13) are reduction motors.

8. A steel plate straightening machine with a variable roller gap as claimed in claim 1, characterized in that: The transmission part (11) is a synchronous belt, and one end of each of the upper pressure roller (9) and the lower pressure roller (10) is provided with a synchronous wheel (25) adapted to the synchronous belt.

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