Straightener roll gap adjusting device and method

Abstract

According to the roll gap adjusting device and method for the straightening machine, an upper adjusting roll set and a side adjusting roll seat are arranged, an upper straightening roll and a lower straightening roll apply straightening force to a bar, the counter-acting force applied by the bar to the upper straightening roll is transmitted to a rotating shaft through an upper roll seat of the upper straightening roll, and the rotating shaft applies pressure to a first pressure sensor; a first pressure sensor is arranged to detect the straightening force, a first servo motor is matched with a sleeve through a rotating shaft to enable an upper roller seat and an upper straightening roller to synchronously move up and down so as to adjust the height of a roller gap between the upper straightening roller and a lower straightening roller, and then the actual straightening force is adjusted to the rated straightening force; the display values of the second pressure sensors are conveniently observed, and the single upper roller seat is adjusted by rotating the knob, so that the pressure value displayed by the second pressure sensor on each adjusting rod is in a reasonable range; the device is simple in structure and convenient to operate, and the production efficiency of bars is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of straightening machine roll gap adjustment, and in particular relates to a straightening machine roll gap adjustment device and an adjustment method. Background Art

[0002] During the preparation of the rods, the rods need to be straightened to improve their straightness. At present, relatively straightening rollers are often used to straighten the rods. During the straightening process, the height of the roller gap between the two straightening rollers determines the size of the straightening force applied to the rods, which in turn affects the straightness of the rods and the residual stress in the tube. When the straightening force is too large, the residual stress of the rods after straightening is large; when the straightening force is too small, the straightness of the rods after straightening is low. In the actual production process, in order to ensure the straightness of the rods after straightening and eliminate the residual stress in the tube, multiple tests are required to determine the optimal straightening force, and the test still needs to be repeated when the production specifications of the rods are changed. Generally, the debugging is to adjust the distance of each roller gap separately, conduct experiments and then adjust them, which is cumbersome, resulting in low production efficiency of the rods. Therefore, a straightening machine roller gap adjustment device and adjustment method are proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a straightening machine roll gap adjustment device and an adjustment method to solve the existing problems.

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

[0005] The present invention is a roller gap adjustment device for a straightening machine, comprising a workbench, the workbench is an "L"-shaped plate structure, a top plate is fixed to one side of the workbench, a first servo motor is arranged at the middle of the upper surface of the top plate, a rotating shaft is fixed to the output end of the first servo motor, the rotating shaft passes through the top plate, the lower section of the rotating shaft is a threaded section, the threaded section of the rotating shaft is threadedly connected with a sleeve, an upper adjustment roller group is fixed to the lower end of the sleeve, the upper adjustment roller group includes a slider and an upper roller seat, a fixing ring is arranged on the peripheral side of the rotating shaft, a first pressure sensor is arranged on the rotating shaft sleeve, the lower end of the first pressure sensor is fixedly connected to the fixing ring, and the upper end of the first pressure sensor contacts the top plate;

[0006] The slider is provided with a cavity, and a plurality of turbines are provided in the cavity. The turbine and one side of the turbine are provided with a worm gear that meshes with the worm gear. Both ends of the worm gear pass through the slider, and one end of the worm gear is fixedly connected with a knob. An adjusting rod is fixed on one surface of the turbine. The adjusting rod passes through the slider and extends to the outside. An external thread is provided on the peripheral side of the adjusting rod extending to the outside. A limiting block is fixed on the lower end of the adjusting rod. The adjusting rod is threadedly connected to an upper roller seat. A threaded hole is provided on the upper surface of the upper roller seat. The threaded hole is connected to the limiting groove. A fixed seat is provided on the peripheral side of the adjusting rod. A second pressure sensor is provided above the fixed seat. The second pressure sensor is sleeved on the peripheral side of the adjusting rod. The upper end of the second pressure sensor contacts the lower surface of the slider, and the lower end of the second pressure sensor is fixedly connected to the upper surface of the fixed seat. An upper straightening roller is provided in the upper roller seat.

[0007] A plurality of lower roller seats are fixedly arranged on the left side of the upper surface of the workbench, lower straightening rollers are arranged in the lower roller seats, and a guide block is arranged on one side of the workbench;

[0008] A movable groove is provided on the right side of the upper surface of the workbench, and an adjusting screw is provided in the movable groove. One end of the adjusting screw passes through the workbench and extends to the outside. A second servo motor is fixed to one end of the adjusting screw. A movable seat is threadedly connected to the side surface of the adjusting screw. The movable seat is an "L"-shaped plate structure. A side adjusting roller group is fixedly provided on one side of the upper surface of the movable seat. The upper adjusting roller group and the side adjusting roller group have the same structure. A plurality of side fixed roller seats are fixedly provided on one side of the workbench. A side straightening roller is provided in the side fixed roller seat, and the position of the side fixed roller seat is adapted to the side adjusting roller group.

[0009] In one embodiment, the shape and size of the turbine are adapted to the worm, and the turbine and the worm are meshed; the shape and size of the limit block are adapted to the limit slot, and the limit block and the limit slot cooperate with each other.

[0010] In one embodiment, the shape and size of the adjusting rod are adapted to the threaded hole, and the adjusting rod and the threaded hole are threadably matched.

[0011] In one embodiment, the upper straightening rollers and the lower straightening rollers are arranged alternately, the upper straightening rollers and the lower straightening rollers have the same structure, and the lower straightening rollers and the side straightening rollers both have driving devices.

[0012] In one of the embodiments, the position of the guide block is adapted to the upper roller seat, and the guide block and the upper roller seat cooperate with each other.

[0013] In one embodiment, the shape and size of the movable seat are adapted to the movable groove, and the movable seat and the movable groove are slidably matched.

[0014] In one of the embodiments, guide rods are fixed on both sides of the upper surface of the upper adjustment roller group, and guide holes are opened on both sides of the upper surface of the top plate, and the guide rods and the guide holes cooperate with each other.

[0015] A method for adjusting a roller gap adjustment device of a straightening machine, applied to the adjustment device according to any one of claims 1 to 7, comprising the following steps:

[0016] Step 1: Turn on the first servo motor to make the rotating shaft and the sleeve thread match, so that the upper adjustment roller group and the lower straightening roller reach a suitable distance;

[0017] Step 2: Turn on the second servo motor to make the adjusting screw drive the moving seat to move, so that the side adjusting roller group and the side straightening roller reach a suitable distance;

[0018] Step 3: Place the bar to be straightened between the upper straightening roller and the lower straightening roller from the left end, start the driving device of the lower straightening roller, perform preliminary straightening on the bar, and debug the straightening device at the same time. Through the value of the first pressure sensor, further flexibly control the roller gap between the upper adjustment roller group and the lower straightening roller, so that the pressure value is within a suitable range;

[0019] Step 4. When the pressure values ​​of the overall upper adjustment roller group and the side adjustment roller group are within a reasonable range, observe the display value of the second pressure sensor, and adjust the single upper roller seat by turning the knob to drive the adjustment rod to engage with the threaded hole, so that the pressure value displayed by the second pressure sensor on each adjustment rod is within a reasonable range.

[0020] The present invention has the following beneficial effects:

[0021] The present invention provides an upper adjustment roller group and a side adjustment roller seat, and the upper straightening roller and the lower straightening roller apply a straightening force to the bar. The reaction force applied by the bar to the upper straightening roller is transmitted to the rotating shaft through the upper roller seat of the upper straightening roller. The rotating shaft applies pressure to the first pressure sensor so that the first pressure sensor detects the magnitude of the straightening force. The first servo motor cooperates with the sleeve through the rotating shaft to make the upper roller seat and the upper straightening roller move up and down synchronously to adjust the roller gap height between the upper straightening roller and the lower straightening roller, and then adjust the actual straightening force to the rated straightening force. This process is convenient and quick, and greatly improves the production efficiency of the bar. At the same time, when it is necessary to adjust bars of different sizes When straightening the bars, it is convenient to quickly adjust the distance between the roller gaps to meet the needs of bars of different sizes. At the same time, by setting the second pressure sensor, it is convenient to observe the displayed value of the second pressure sensor. By turning the knob, the adjusting rod is driven to cooperate with the threaded hole, so as to adjust the single upper roller seat, so that the pressure value displayed by the second pressure sensor on each adjusting rod is within a reasonable range. The present invention has a simple structure. When replacing bars of different sizes, there is no need to adjust each straightening roller multiple times. It is easy to operate, can ensure the straightness of the bars after straightening and eliminate residual stress in the tube, and greatly improves the production efficiency of the bars.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of a roller gap adjustment device for a straightening machine;

[0025] Figure 2 It is a front view of a roller gap adjustment device for a straightening machine;

[0026] Figure 3 for Figure 2 Middle AA section;

[0027] Figure 4 for Figure 3 Middle BB section;

[0028] Figure 5 for Figure 4 Middle CC section;

[0029] Figure 6 for Figure 3 Enlarged view of part D in the middle;

[0030] Figure 7 for Figure 5 Enlarged view of part E in the middle.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Workbench; 2. Top plate; 3. First servo motor; 4. Rotating shaft; 5. Sleeve; 6. Slider; 7. Fixed ring; 8. First pressure sensor; 9. Cavity; 10. Turbine; 11. Worm; 12. Knob; 13. Adjustment rod; 14. Limit block; 15. Upper roller seat; 16. Threaded hole; 17. Limit groove; 18. Fixed seat; 19. Second pressure sensor; 20. Upper straightening roller; 21. Lower roller seat; 22. Lower straightening roller; 23. Guide block; 24. Movable groove; 25. Adjustment screw; 26. Second servo motor; 27. Moving seat; 28. Side fixed roller seat; 29. ​​Guide rod; 30. Upper adjustment roller group; 31. Side adjustment roller group. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-Figure 7As shown, the present invention is a roller gap adjustment device for a straightening machine, comprising a workbench 1, the workbench 1 is an "L"-shaped plate structure, a top plate 2 is fixed to one side of the workbench 1, a first servo motor 3 is arranged in the middle of the upper surface of the top plate 2, a rotating shaft 4 is fixed to the output end of the first servo motor 3, the rotating shaft 4 passes through the top plate 2, the lower section of the rotating shaft 4 is a threaded section, the threaded section of the rotating shaft 4 is threadedly connected with a sleeve 5, an upper adjusting roller group 30 is fixed to the lower end of the sleeve 5, the upper adjusting roller group includes a slider 6 and an upper roller seat 15, a fixing ring 7 is arranged on the side of the rotating shaft 4, a first pressure sensor 8 is sleeved on the rotating shaft 4, the lower end of the first pressure sensor 8 is fixedly connected to the fixing ring 7, and the upper end of the first pressure sensor 8 is in contact with the top plate 2;

[0037] A cavity 9 is provided in the slider 6, and a plurality of turbines 10 are provided in the cavity 9. The turbines 10 and one side of the turbines 10 are provided with a meshing worm 11. Both ends of the worm 11 penetrate the slider 6. One end of the worm 11 is fixedly connected with a knob 12. An adjusting rod 13 is fixed on one surface of the turbine 10. The adjusting rod 13 penetrates the slider 6 and extends to the outside. The side surface of the adjusting rod 13 extending to the outside is provided with an external thread. A limiting block 14 is fixed at the lower end of the adjusting rod 13. The adjusting rod 13 is threadedly connected with an upper roller seat 15. A threaded hole 16 is provided on the upper surface of the upper roller seat 15. The threaded hole 16 is connected to the limiting groove 17. A fixing seat 18 is provided on the side surface of the adjusting rod 13. A second pressure sensor 19 is provided above the fixing seat 18. The second pressure sensor 19 is sleeved on the side surface of the adjusting rod 13. The upper end of the second pressure sensor 19 contacts with the lower surface of the slider 6. The lower end of the second pressure sensor 19 is fixedly connected with the upper surface of the fixing seat 18. An upper straightening roller 20 is provided in the upper roller seat 15.

[0038] A plurality of lower roller seats 21 are fixedly arranged on the left side of the upper surface of the workbench 1, and lower straightening rollers 22 are arranged in the lower roller seats 21. A guide block 23 is arranged on one side of the workbench 1;

[0039] A movable groove 24 is provided on the right side of the upper surface of the workbench 1, and an adjusting screw 25 is provided in the movable groove 24. One end of the adjusting screw 25 passes through the workbench 1 and extends to the outside. A second servo motor 26 is fixed to one end of the adjusting screw 25. A movable seat 27 is threadedly connected to the side surface of the adjusting screw 25. The movable seat 27 is an "L"-shaped plate structure. A side adjusting roller group 31 is fixedly provided on one side of the upper surface of the movable seat 27. The upper adjusting roller group 30 and the side adjusting roller group 31 have the same structure. A plurality of side fixed roller seats 28 are fixedly provided on one side of the workbench 1. Side straightening rollers are provided in the side fixed roller seats 28. The position of the side fixed roller seats 28 is adapted to the side adjusting roller group 31.

[0040] The shape and size of the turbine 10 are adapted to the worm 11 , and the turbine 10 and the worm 11 are meshed with each other; the shape and size of the limit block 14 are adapted to the limit groove 17 , and the limit block 14 and the limit groove 17 cooperate with each other.

[0041] The shape and size of the adjusting rod 13 are adapted to the threaded hole 16 , and the adjusting rod 13 and the threaded hole 16 are threadably matched.

[0042] The upper straightening rollers 20 and the lower straightening rollers 22 are arranged alternately, the upper straightening rollers 20 and the lower straightening rollers 22 have the same structure, and the lower straightening rollers 22 and the side straightening rollers are both provided with driving devices.

[0043] The position of the guide block 23 is adapted to the upper roller seat 15 , and the guide block 23 and the upper roller seat 15 cooperate with each other.

[0044] The shape and size of the movable seat 27 are adapted to the movable groove 24 , and the movable seat 27 and the movable groove 24 are slidably matched.

[0045] Among them, guide rods 29 are fixed on both sides of the upper surface of the upper adjustment roller group 30, and guide holes are opened on both sides of the upper surface of the top plate 2, and the guide rods 29 and the guide holes cooperate with each other.

[0046] The adjustment method of the roller gap adjustment device of the straightening machine of this embodiment comprises the following steps:

[0047] Step 1: Turn on the first servo motor 3 to make the rotating shaft 4 and the sleeve 5 threadedly engage, so that the upper adjusting roller set 30 and the lower straightening roller 22 reach a suitable distance;

[0048] Step 2: Turn on the second servo motor 26 to make the adjusting screw 25 drive the moving seat 27 to move, so that the side adjusting roller group 31 and the side straightening roller reach a suitable distance;

[0049] Step 3: Place the bar to be straightened between the upper straightening roller 20 and the lower straightening roller 22 from the left end, start the driving device of the lower straightening roller 22, perform preliminary straightening on the bar, and debug the straightening device at the same time. Through the value of the first pressure sensor 8, further flexibly control the roller gap between the upper adjustment roller group 30 and the lower straightening roller 22, so that the pressure value is within a suitable range;

[0050] Step 4. When the pressure values ​​of the overall adjustment roller group 30 and the side adjustment roller group 31 are within a reasonable range, observe the display value of the second pressure sensor 19, and turn the knob 12 to drive the adjustment rod 13 to threadedly engage with the threaded hole 16, thereby adjusting the single upper roller seat 15, so that the pressure value displayed by the second pressure sensor 19 on each adjustment rod 13 is within a reasonable range.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A roller gap adjustment device for a straightening machine, comprising a workbench (1), characterized in that: The workbench (1) is an "L"-shaped plate structure, a top plate (2) is fixed to one side of the workbench (1), a first servo motor (3) is arranged in the middle of the upper surface of the top plate (2), a rotating shaft (4) is fixed to the output end of the first servo motor (3), the rotating shaft (4) passes through the top plate (2), the lower section of the rotating shaft (4) is a threaded section, the threaded section of the rotating shaft (4) is threadedly connected with a sleeve (5), an upper adjustment roller group (30) is fixed to the lower end of the sleeve (5), the upper adjustment roller group includes a slider (6) and an upper roller seat (15), a fixing ring (7) is arranged on the peripheral side of the rotating shaft (4), a first pressure sensor (8) is sleeved on the rotating shaft (4), the lower end of the first pressure sensor (8) is fixedly connected to the fixing ring (7), and the upper end of the first pressure sensor (8) is in contact with the top plate (2); The slider (6) is provided with a cavity (9), and a plurality of turbines (10) are provided in the cavity (9). The turbines (10) are provided with a worm (11) meshing on one side thereof, and both ends of the worm (11) pass through the slider (6). One end of the worm (11) is fixedly connected with a knob (12). An adjusting rod (13) is fixed on one surface of the turbine (10), and the adjusting rod (13) passes through the slider (6) and extends to the outside. The peripheral side of the adjusting rod (13) extending to the outside is provided with an external thread, and a limiting block (14) is fixed at the lower end of the adjusting rod (13). The adjusting rod (13) is threaded An upper roller seat (15) is connected, a threaded hole (16) is provided on the upper surface of the upper roller seat (15), the threaded hole (16) is connected to a limiting groove (17), a fixed seat (18) is provided on the peripheral side of the adjusting rod (13), a second pressure sensor (19) is provided above the fixed seat (18), the second pressure sensor (19) is sleeved on the peripheral side of the adjusting rod (13), the upper end of the second pressure sensor (19) is in contact with the lower surface of the slider (6), the lower end of the second pressure sensor (19) is fixedly connected to the upper surface of the fixed seat (18), and an upper straightening roller (20) is provided in the upper roller seat (15); A plurality of lower roller seats (21) are fixedly arranged on the left side of the upper surface of the workbench (1), a lower straightening roller (22) is arranged in the lower roller seat (21), and a guide block (23) is arranged on one side of the workbench (1); A movable groove (24) is provided on the right side of the upper surface of the workbench (1), and an adjusting screw (25) is provided in the movable groove (24). One end of the adjusting screw (25) passes through the workbench (1) and extends to the outside. A second servo motor (26) is fixed to one end of the adjusting screw (25). A movable seat (27) is threadedly connected to the peripheral side of the adjusting screw (25). The movable seat (27) is an "L"-shaped plate structure. A side adjusting roller group (31) is fixedly provided on one side of the upper surface of the movable seat (27). The upper adjusting roller group (30) and the side adjusting roller group (31) have the same structure. A plurality of side fixed roller seats (28) are fixedly provided on one side of the workbench (1), and a side straightening roller is provided in the side fixed roller seat (28). The position of the side fixed roller seat (28) is adapted to the side adjusting roller group (31).

2. A straightening machine roll gap adjustment device according to claim 1, characterized in that: The shape and size of the turbine (10) are adapted to the worm (11), and the turbine (10) and the worm (11) are meshed with each other; the shape and size of the limit block (14) are adapted to the limit groove (17), and the limit block (14) and the limit groove (17) are matched with each other.

3. The roller gap adjustment device for a straightening machine according to claim 1, characterized in that: The shape and size of the adjusting rod (13) are adapted to the threaded hole (16), and the adjusting rod (13) and the threaded hole (16) are threadably matched.

4. A roller gap adjustment device for a straightening machine according to claim 1, characterized in that: The upper straightening roller (20) and the lower straightening roller (22) are arranged alternately, the upper straightening roller (20) and the lower straightening roller (22) have the same structure, and the lower straightening roller (22) and the side straightening roller both have a driving device.

5. The roller gap adjustment device for a straightening machine according to claim 1, characterized in that: The position of the guide block (23) is adapted to the upper roller seat (15), and the guide block (23) and the upper roller seat (15) cooperate with each other.

6. A straightening machine roll gap adjustment device and adjustment method according to claim 1, characterized in that: The shape and size of the movable seat (27) are adapted to the movable groove (24), and the movable seat (27) and the movable groove (24) are slidably matched.

7. A straightening machine roll gap adjustment device and adjustment method according to claim 1, characterized in that: Guide rods (29) are fixed on both sides of the upper surface of the upper adjustment roller group (30), and guide holes are opened on both sides of the upper surface of the top plate (2), and the guide rods (29) and the guide holes cooperate with each other.

8. A method for adjusting a roller gap adjustment device of a straightening machine, applied to the adjustment device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Turn on the first servo motor (3) to make the rotating shaft (4) and the sleeve (5) threadably engage with each other, so that the upper adjusting roller group (30) and the lower straightening roller (22) reach a suitable distance; Step 2: Turn on the second servo motor (26) to enable the adjusting screw (25) to drive the moving seat (27) to move, so that the side adjusting roller group (31) and the side straightening roller reach a suitable distance; Step 3: The bar to be straightened is passed from the left end between the upper straightening roller (20) and the lower straightening roller (22), and the driving device of the lower straightening roller (22) is started to perform preliminary straightening on the bar. At the same time, the straightening device is also debugged. Through the value of the first pressure sensor (8), the roller gap between the upper adjustment roller group (30) and the lower straightening roller (22) is further flexibly controlled so that the pressure value is within a suitable range; Step 4: When the pressure values ​​of the upper adjustment roller group (30) and the side adjustment roller group (31) as a whole are within a reasonable range, observe the display value of the second pressure sensor (19), and by turning the knob (12), drive the adjustment rod (13) to engage with the threaded hole (16), thereby adjusting the single upper roller seat (15), so that the pressure value displayed by the second pressure sensor (19) on each adjustment rod (13) is within a reasonable range.

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