CN219766436U - High-speed bar straightening device - Google Patents
High-speed bar straightening device Download PDFInfo
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- CN219766436U CN219766436U CN202321169409.7U CN202321169409U CN219766436U CN 219766436 U CN219766436 U CN 219766436U CN 202321169409 U CN202321169409 U CN 202321169409U CN 219766436 U CN219766436 U CN 219766436U
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- 238000001514 detection method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a high-speed bar straightening device, which comprises: the first pair of rollers, the second pair of rollers, the third pair of rollers, the fourth pair of rollers, the fifth pair of rollers and the tail roller are fixed in the vertical direction, and the second pair of rollers, the fourth pair of rollers and the tail roller can be lifted in the vertical direction; the first pair of rollers, the third pair of rollers and the fifth pair of rollers are driving rollers, the second pair of rollers, the fourth pair of rollers and the tail rollers rotate when the machine is started, and the first pair of rollers are switched to a follow-up state when biting into the straightened bar.
Description
Technical Field
The utility model belongs to the technical field of metallurgical equipment, and particularly relates to a high-speed bar straightening device.
Background
The current market has set higher requirements on both the straightness of bars and the working efficiency of the straightener. The two-roller straightener has low straightening speed, high requirement on the original bending degree of the bar stock and large loss of the guide plate. The middle pair roller of the traditional multi-roller straightener adopts a passive mode, and the driven roller is driven to rotate by the bitten bar stock. When the straightening speed is high, the torque of the front pair of rollers becomes small, the force of clamping the bar to the driven roller becomes small, and the bar cannot bite into the driven roller, which is a main factor limiting the speed of the straightener.
Disclosure of Invention
In view of this, it is an object of the present utility model to provide a high speed bar straightener for overcoming or at least partially solving or alleviating the above problems.
The utility model provides a high-speed bar straightening device, which comprises: the first pair of rollers, the second pair of rollers, the third pair of rollers, the fourth pair of rollers, the fifth pair of rollers and the tail roller are fixed in the vertical direction, and the second pair of rollers, the fourth pair of rollers and the tail roller can be lifted in the vertical direction;
the first pair of rollers, the third pair of rollers and the fifth pair of rollers are driving rollers, the second pair of rollers, the fourth pair of rollers and the tail rollers rotate when the machine is started, and the first pair of rollers are switched to a follow-up state when biting into the straightened bar.
The utility model also has the following optional features.
Optionally, the first, third and fifth pairs of rollers are driven by a motor, and the second, fourth and tail rollers are driven by a hydraulic motor.
Optionally, the structure of the single roller on the second pair of rollers, the fourth pair of rollers and the tail roller comprises:
the roller frame is characterized in that bearings are respectively arranged at two ends of the roller frame, a roller shaft is arranged between the two bearings, and a roller sleeve is sleeved on the roller shaft;
the end covers are arranged at two ends of the roller frame;
the hydraulic motor is arranged on one of the end covers, and a main shaft of the hydraulic motor penetrates through the end cover to be in transmission connection with one end of the roll shaft
Optionally, the hydraulic pressure control device further comprises a photoelectric detection switch and a controller, wherein the photoelectric detection switch is arranged in front of the first pair of rollers, and when the photoelectric detection switch detects that the straightened bar is bitten into the hydraulic pressure control device, the controller controls the hydraulic motor to release pressure.
Optionally, the first pair of rollers, the third pair of rollers and the fifth pair of rollers adopt hyperbolic roller shapes, and the second pair of rollers and the fourth pair of rollers adopt deep and shallow concave-convex roller shapes.
Optionally, the roll surface height of the tail roll is equal to or higher than the roll surface height of the fifth pair of rolls.
The utility model has the following beneficial effects:
the second pair of rollers, the fourth pair of rollers and the tail roller of the novel high-speed bar straightening device rotate in advance before the first pair of rollers is needed to enter, after the first pair of rollers bite bar stock, the second pair of rollers, the fourth pair of rollers and the tail roller are switched into a follow-up state, so that the bar stock which advances at high speed can be ensured to bite into the second pair of rollers and the fourth pair of rollers smoothly, the requirement of high straightening precision can be met, and the high straightening speed is realized.
Drawings
FIG. 1 is a schematic diagram of the distribution structure of straightening rolls of the high-speed bar straightening device of the utility model;
fig. 2 is a schematic view of the structure of the single straightening roll in fig. 1.
In the above figures: 1 a first pair of rollers; 2 a second pair of rollers; 3 a third pair of rollers; 4 a fourth pair of rollers; 5 a fifth pair of rollers; 6, tail roller; 7, a roller frame; 8, a bearing; 9 roll shafts; 10 roller sleeves; 11 end caps; 12 hydraulic motor.
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1 and 2, an embodiment of the present utility model proposes a high-speed bar straightening apparatus including: the first pair of rollers 1, the second pair of rollers 2, the third pair of rollers 3, the fourth pair of rollers 4, the fifth pair of rollers 5 and the tail roller 6, wherein the first pair of rollers 1, the third pair of rollers 3 and the fifth pair of rollers 5 are fixed in the vertical direction, and the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 can be lifted in the vertical direction; the first pair of rollers 1, the third pair of rollers 3 and the fifth pair of rollers 5 are driving rollers, the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 rotate when being started, and the first pair of rollers 1 are switched to a follow-up state when biting into the straightened bar.
The first pair of rollers 1, the second pair of rollers 2, the third pair of rollers 3, the fourth pair of rollers 4 and the fifth pair of rollers 5 adopt a relative oblique roller arrangement mode, and the angles of the central lines of the roller surfaces of all straightening rollers can be adjusted so as to adapt to bars with different diameters. The first pair of rollers 1, the third pair of rollers 3 and the fifth pair of rollers 5 can not lift, the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 can lift, the first pair of rollers 1, the second pair of rollers 2 and the third pair of rollers 3 are used for roughly correcting the bar stock, and the fourth pair of rollers 4 and the fifth pair of rollers 5 are used for finely correcting the bar stock.
After the high-speed bar straightening device is started, the first pair of rollers 1, the second pair of rollers 2, the third pair of rollers 3, the fourth pair of rollers 4, the fifth pair of rollers 5 and the tail roller 6 start to rotate to a certain speed. When the first pair of rollers 1 bites into bars, the first pair of rollers 1, the third pair of rollers 3 and the fifth pair of rollers 5 keep the original rotation speed unchanged, the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 are switched into a follow-up state, so that the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 have a certain initial speed before the bars bite, the bars advancing at a high speed are ensured to bite into the middle roller smoothly, and the condition of relative sliding cannot be caused, and the straightening speed is effectively improved.
Example 2
Referring to fig. 1 and 2, on the basis of embodiment 1, the first pair of rollers 1, the third pair of rollers 3 and the fifth pair of rollers 5 are driven by motors, and the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 are driven by hydraulic motors.
The transmission mechanism between the hydraulic motor and the straightening roller has simple structure and small inertia, and is suitable for switching from the driving roller to the driven roller, so that the straightening roller is not easy to scratch the surface of a bar.
Example 3
Referring to fig. 2, on the basis of embodiment 2, the structure of the single rolls on the second pair of rolls 2, the fourth pair of rolls 4 and the tail roll 6 includes: a roller housing 7, an end cap 11 and a hydraulic motor 12; bearings 8 are respectively arranged at two ends of the roller frame 7, a roller shaft 9 is arranged between the two bearings 8, and a roller sleeve 10 is sleeved on the roller shaft 9; the end caps 11 are arranged at two ends of the roller frame 7; the hydraulic motor 12 is arranged on one of the end covers 11, and a main shaft of the hydraulic motor 12 penetrates through the end cover 11 to be in transmission connection with one end of the roll shaft 9.
The roller frame 7 is U-shaped structure, is provided with bearing 6 in its both ends respectively, and the both ends of roller 9 pass through bearing 6 and support, and roller frame 7 is provided with end cover 11 respectively at the both ends of bearing 6, and one of them end cover 11 is annular structure, and hydraulic motor 12 passes through bolted connection on this annular structure's end cover 11, and the main shaft of hydraulic motor 12 passes behind the end cover 11 and is connected with roller 9 through the spline, is provided with the parallel key between roller 9 and the roller shell 10.
Example 4
Referring to fig. 1, on the basis of embodiment 1, a photoelectric detection switch and a controller are further included, wherein the photoelectric detection switch is arranged in front of the first pair of rollers 1, and when the photoelectric detection switch detects that a straightened bar is bitten into the photoelectric detection switch, the controller controls the hydraulic motor 12 to release pressure.
The straightener device of the patent application is provided with photoelectric detection switches at the front and back. Before the bar bites into the first pair of rollers 1, the controller controls the hydraulic motors 12 on the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 to drive the straightening pairs of rollers 2, 4, the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 to rotate in advance to reach a certain speed. When the photoelectric detection switch detects that the first pair of rollers 1 bite into the bar stock, the controller controls each hydraulic motor 12 to automatically release pressure, so that the second pair of rollers 2, the fourth pair of rollers 4 and the tail roller 6 are switched into a follow-up state. The photoelectric detection switch has high sensitivity, and can send detection signals to the controller when the bar is bitten.
Example 5
Referring to fig. 1, on the basis of example 4, the first pair of rollers 1, the third pair of rollers 3, and the fifth pair of rollers 5 are of a hyperbolic roll shape, and the second pair of rollers 2 and the fourth pair of rollers 4 are of a deep and shallow concave-convex roll shape.
Under the condition that the number of rollers is not increased, the three pairs of rollers are hyperbolic roller shapes, and the two pairs of rollers are deep and shallow concave-convex roller shapes, so that the number of reverse bending times can be increased, the reverse bending pitch is reduced, and head-tail straightening dead zones are reduced.
Example 6
On the basis of embodiment 1, the roll surface height of the tail roll 6 is equal to or higher than the roll surface height of the fifth pair of rolls 5.
The tail roller 6 can lift the bar from the discharge roller way by lifting and adjusting the height of the roller surface to be equal to or higher than that of the roller surface of the fifth pair of rollers 5, so that the bar is prevented from being scratched.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims. The components and structures not specifically described in this embodiment are well known in the art and are not described in detail herein.
Claims (6)
1. A high speed bar straightener, comprising: the device comprises a first pair of rollers (1), a second pair of rollers (2), a third pair of rollers (3), a fourth pair of rollers (4), a fifth pair of rollers (5) and a tail roller (6), wherein the first pair of rollers (1), the third pair of rollers (3) and the fifth pair of rollers (5) are fixed in the vertical direction, and the second pair of rollers (2), the fourth pair of rollers (4) and the tail roller (6) can be lifted in the vertical direction;
the first pair of rollers (1), the third pair of rollers (3) and the fifth pair of rollers (5) are driving rollers, the second pair of rollers (2), the fourth pair of rollers (4) and the tail roller (6) rotate when the machine is started, and the first pair of rollers (1) are switched to a follow-up state when biting into the straightened bar.
2. High-speed bar straightening device according to claim 1, characterized in that the first (1), third (3) and fifth (5) pair of rollers are driven by an electric motor, and the second (2), fourth (4) and tail (6) pair of rollers are driven by a hydraulic motor.
3. High-speed bar straightening device according to claim 2, characterized in that the structure of the single rolls on the second pair of rolls (2), the fourth pair of rolls (4) and the tail roll (6) comprises:
the roller comprises a roller frame (7), wherein bearings (8) are respectively arranged at two ends of the roller frame (7), a roller shaft (9) is arranged between the two bearings (8), and a roller sleeve (10) is sleeved on the roller shaft (9);
end covers (11), wherein the end covers (11) are arranged at two ends of the roller frame (7);
the hydraulic motor (12) is arranged on one end cover (11), and a main shaft of the hydraulic motor (12) penetrates through the end cover (11) to be in transmission connection with one end of the roll shaft (9).
4. The high-speed bar straightening device according to claim 2, characterized by further comprising a photoelectric detection switch and a controller, wherein the photoelectric detection switch is arranged in front of the first pair of rollers (1), and the controller controls the hydraulic motor (12) to release pressure when the photoelectric detection switch detects that a straightened bar is bitten.
5. High-speed bar straightening device according to claim 1, characterized in that the first (1), third (3) and fifth (5) pair of rollers are of hyperbolic roll type and the second (2) and fourth (4) pair of rollers are of deep and shallow concave-convex roll type.
6. High-speed bar straightener according to claim 1, characterized in that the roll surface height of the tail roll (6) is equal to or higher than the roll surface height of the fifth pair of rolls (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321169409.7U CN219766436U (en) | 2023-05-15 | 2023-05-15 | High-speed bar straightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321169409.7U CN219766436U (en) | 2023-05-15 | 2023-05-15 | High-speed bar straightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219766436U true CN219766436U (en) | 2023-09-29 |
Family
ID=88138641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321169409.7U Active CN219766436U (en) | 2023-05-15 | 2023-05-15 | High-speed bar straightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219766436U (en) |
-
2023
- 2023-05-15 CN CN202321169409.7U patent/CN219766436U/en active Active
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