CN210280200U - Pinch roll outlet guide device - Google Patents
Pinch roll outlet guide device Download PDFInfo
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- CN210280200U CN210280200U CN201921112066.4U CN201921112066U CN210280200U CN 210280200 U CN210280200 U CN 210280200U CN 201921112066 U CN201921112066 U CN 201921112066U CN 210280200 U CN210280200 U CN 210280200U
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- contact surface
- guide roller
- guide
- deflector roll
- roll
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Abstract
The utility model discloses a device is led and defended in pinch roll export, including leading and defending frame and rotatable last deflector roll and the lower deflector roll that sets up on leading and defending the frame, the deflector roll is V type deflector roll in the below of deflector roll and on the deflector roll and lower deflector roll down. The utility model discloses a pinch roll export is led and is defended device, through two deflector rolls about setting up, changes rolled piece top and bottom friction form into rolling friction by sliding friction, reduces the rolled piece and draws/scotch because of the machinery that the vertical runout caused before the laying head, when improving laying head back finished product surface quality, reaches cold-heading steel, spring steel, bearing steel etc. high added value wire rod to the technological requirement of follow-up cold processing.
Description
Technical Field
The utility model belongs to the technical field of the steel rolling, specifically speaking, the utility model relates to a pinch roll export is led and is defended device.
Background
The high-speed wire rolling line is provided with a sliding outlet guide at the front of the laying head and at the outlet of the pinch roll. The sliding outlet guide basically can meet the requirements of small specifications, common building materials and common high-carbon steel on the surface of the wire rod for scratching, but cannot meet the requirements of specifications over phi 12.0mm and the use requirement of high-added-value cold heading steel, and at present, the scratching depth is as follows: 0.20mm to about 0.40 mm.
When the surface of the finished wire rod is scratched in a pit with the depth of more than or equal to 0.05mm, the subsequent cold processing quality is affected. In cold working deformation, if the deformation amount is large, cold heading cracking phenomenon is caused, deep scratching (rubbing) damage even forms surface defects similar to folding, and the defects cannot be eliminated by means of heat treatment. Particularly for cold heading steel, spring steel, bearing steel and the like, the special steel for wire drawing has high requirements on the surface quality of the wire, the general surface scratching (rubbing) depth is controlled to be more than or equal to 0.05mm, and the cold machining requirements of downstream customers can be met.
At present, the arc-shaped outlet sliding guide device is adopted at the front joint of a pinch roll and a wire laying machine and at the position of a 15-degree bend of a lower arc line in a high-speed wire rolling line. The sliding abrasion guide and guard device is difficult to avoid scratching the surface of the finished wire. Under the condition that the temperature is not reduced at all (the temperature is about 780 degrees), the wire rod shakes up and down in the outlet sliding guide, and the surface of the wire rod is easy to scratch. As the gauge increases (the maximum gauge phi is 25.0mm), the rolling force increases, and the probability and depth of scratches increase and deepen. The sliding guide device is particularly used for special steel with higher surface quality requirements, such as wire rod products of cold heading steel, spring steel, bearing steel and the like, and the requirements of special steel high-speed wire rod products on surface scratching cannot be met by using the sliding guide device at the outlet of a pinch roll, and meanwhile, the requirements of subsequent cold processing, cold heading, wire drawing and other wire rod processes cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a pinch roll export guide device, the purpose reduces the mechanical scratch of wire rod rolled piece.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: the pinch roll outlet guide device comprises a guide frame, an upper guide roll and a lower guide roll, wherein the upper guide roll and the lower guide roll are rotatably arranged on the guide frame, the lower guide roll is positioned below the upper guide roll, and the upper guide roll and the lower guide roll are V-shaped guide rolls.
The upper guide roller is provided with a first upper contact surface and a second upper contact surface which are used for being in contact with a rolled piece, the first upper contact surface and the second upper contact surface are conical surfaces, and the small-diameter end of the first upper contact surface is connected with the small-diameter end of the second upper contact surface.
The first upper contact surface and the second upper contact surface are symmetrically arranged, and the small-diameter ends of the first upper contact surface and the second upper contact surface are located at the middle positions in the length direction of the upper guide roller.
The lower guide roller is provided with a first lower contact surface and a second lower contact surface which are used for being in contact with a rolled piece, the first lower contact surface and the second lower contact surface are conical surfaces, and the small-diameter end of the first lower contact surface is connected with the small-diameter end of the second lower contact surface.
The first lower contact surface and the second lower contact surface are symmetrically arranged, and the small-diameter ends of the first lower contact surface and the second lower contact surface are located in the middle of the lower guide roller in the length direction.
The utility model discloses a pinch roll export is led and is defended device, through two deflector rolls about setting up, changes rolled piece top and bottom friction form into rolling friction by sliding friction, reduces the rolled piece and draws/scotch because of the machinery that the vertical runout caused before the laying head, when improving laying head back finished product surface quality, reaches the technological requirement of high added value wire rod such as cold-heading steel, spring steel, bearing steel to follow-up cold processing.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural view of a pinch roll outlet guide device of the present invention;
FIG. 2 is a cross-sectional view of the upper and lower guide rollers;
labeled as: 1. a guide frame; 2. an upper arc plate; 3. a cooling water joint; 4. a cooling water channel; 5. an upper guide roller; 501. a first upper contact surface; 502. a second upper contact surface; 6. an oil-gas joint; 7. a bolt; 8. a lower guide roller; 801. a first lower contact surface; 802. a second lower contact surface; 9. a lower arc-shaped plate.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the concept and technical solution of the present invention, and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 and 2, the utility model provides a pinch roll export is led and is defended device, including leading and defending frame 1 and rotatable last deflector roll 5 and the lower deflector roll 8 that sets up on leading and defending frame 1, lower deflector roll 8 is located the below of last deflector roll 5 and goes up deflector roll 5 and lower deflector roll 8 and be V type deflector roll.
Specifically, as shown in fig. 1 and 2, the upper guide roller 5 and the lower guide roller 8 are mounted on the guide frame 1 through a rotating shaft, a rotation center line of the upper guide roller 5 is parallel to a rotation center line of the lower guide roller 8, the rotation center lines of the upper guide roller 5 and the lower guide roller 8 are perpendicular to the longitudinal direction of the guide frame 1, the upper guide roller 5 is positioned right above the lower guide roller 8, a certain distance is provided between the upper guide roller 5 and the lower guide roller 8, and a rolled material can pass through between the upper guide roller 5 and the lower guide roller 8. The guide frame 1 is internally provided with an upper arc plate 2 and a lower arc plate 9, the upper arc plate 2 and the lower arc plate 9 are both of a circular arc structure, the upper arc plate 2 and the lower arc plate 9 are coaxially arranged, the diameter of the upper arc plate 2 is larger than that of the lower arc plate 9, the upper arc plate 2 is positioned above the lower arc plate 9, and a certain distance is reserved between the upper arc plate 2 and the lower arc plate 9, so that a rolled piece channel allowing a rolled piece to pass through is formed, the rolled piece channel is a circular arc channel formed inside the guide frame 1, the rotating central lines of the upper guide roller 5 and the lower guide roller 8 are parallel to the axes of the upper arc plate 2 and the lower arc plate 9, the upper guide roller 5 is positioned at one end of the upper arc plate 2, the lower guide rail is positioned at one end of the lower arc plate 9, and the upper guide roller 5 and the lower guide roller. The pinch roll outlet guide and guard device is arranged at the position of a pinch roll outlet and 15 degrees of a front lower arc line of a spinning machine, an upper guide roll 5 and a lower guide roll 8 are arranged at the inlet end of a rolled piece channel, a rolled piece enters the rolled piece channel through a gap between the upper guide roll 5 and the lower guide roll 8, the friction form between the top of the wire rolled piece and an upper arc plate 2 is changed from sliding friction to rolling friction, and meanwhile, the friction form between the bottom of the wire rolled piece and a lower arc plate 9 is changed from sliding friction to rolling friction, so that mechanical scratching/scratching of the wire rolled piece in front of the spinning machine is reduced, the surface quality of a finished wire rolled piece after spinning is improved, and the process requirements of high-value wires such as cold heading steel, spring steel, bearing steel and the.
As shown in fig. 1 and 2, the upper guide roller 5 has a first upper contact surface 501 and a second upper contact surface 502 for contacting a rolled product, the first upper contact surface 501 and the second upper contact surface 502 are both conical surfaces and the first upper contact surface 501 and the second upper contact surface 502 are coaxially arranged (the axes of the first upper contact surface 501 and the second upper contact surface 502 are also the rotation center line of the upper guide roller 5), the first upper contact surface 501 and the second upper contact surface 502 are the outer surfaces of the upper guide roller 5, the first upper contact surface 501 has a large diameter end and a small diameter end, the diameter of the large diameter end of the first upper contact surface 501 is larger than that of the small diameter end, the second upper contact surface 502 also has a large diameter end and a small diameter end, the diameter of the large diameter end of the second upper contact surface 502 is larger than that of the small diameter end, the diameter of the large diameter end of the first upper contact surface 501 is the same size as that of the large diameter end of the second upper contact surface 502, the diameter of the small-diameter end of the first upper contact surface 501 is the same as the diameter of the small-diameter end of the second upper contact surface 502, and the small-diameter end of the first upper contact surface 501 is connected with the small-diameter end of the second upper contact surface 502. The first and second upper contact surfaces 501 and 502 are symmetrically arranged, and the small diameter ends of the first and second upper contact surfaces 501 and 502 are located at the middle position in the length direction of the upper guide roller 5. The small-diameter ends of the first upper contact surface 501 and the second upper contact surface 502 are the lowest point positions of the surfaces of the upper guide rollers 5, and when a rolled piece contacts the upper arc-shaped plate 2, the rolled piece can fixedly walk at the middle position of the guide rollers along the lowest point track of the V-shaped guide rollers, so that the phenomenon that the left side and the right side of the rolled piece are scratched due to left-right swinging is avoided.
As shown in fig. 1 and 2, the lower guide roller 8 has the same structure as the upper guide roller 5, the lower guide roller 8 has a first lower contact surface 801 and a second lower contact surface 802 for contacting a rolled product, the first lower contact surface 801 and the second lower contact surface 802 are both conical surfaces, the first lower contact surface 801 and the second lower contact surface 802 are coaxially arranged (the axes of the first lower contact surface 801 and the second lower contact surface 802 are also the rotation center line of the lower guide roller 8), the first lower contact surface 801 and the second lower contact surface 802 are the outer surface of the lower guide roller 8, the first lower contact surface 801 has a large diameter end and a small diameter end, the diameter of the large diameter end of the first lower contact surface 801 is larger than that of the small diameter end, the second lower contact surface 802 also has a large diameter end and a small diameter end, the diameter of the large diameter end of the second lower contact surface 802 is larger than that of the small diameter end, the diameter of the large diameter end of the first lower contact surface 801 is larger than that of the large diameter end of the second lower contact surface 802 and the large diameter end of the first upper contact surface 501 Similarly, the diameter of the small diameter end of the first lower contact surface 801 is the same as the diameter of the small diameter ends of the second lower contact surface 802 and the first upper contact surface 501, and the small diameter end of the first lower contact surface 801 is connected to the small diameter end of the second lower contact surface 802. The first lower contact surface 801 and the second lower contact surface 802 are symmetrically arranged, and the small diameter ends of the first lower contact surface 801 and the second lower contact surface 802 are located at the middle position in the length direction of the lower guide roller 8. Similarly, the small-diameter ends of the first lower contact surface 801 and the second lower contact surface 802 are the lowest point positions of the surfaces of the lower guide rollers 8, and when a rolled piece contacts the lower arc-shaped plate 9, the rolled piece can fixedly walk at the middle position of the guide rollers along the lowest point track of the V-shaped guide rollers, so that the scratching (rubbing) phenomenon on the left side and the right side caused by the left-right swinging of the rolled piece is avoided.
As shown in fig. 1, a cooling water passage 4 for allowing a cooling liquid for cooling the upper guide roller 5 to enter is provided at one end of the guide frame 1 near the upper guide roller 5, and a cooling water joint 3 communicating with the cooling water passage 4 is provided at the guide frame 1. A cooling water channel 4 for cooling the cooling liquid of the lower guide roller 8 to enter is also arranged at one end of the guide frame 1 close to the lower guide roller 8, and a cooling water joint 3 communicated with the cooling water channel 4 is arranged on the guide frame 1. The cooling water channel 4 forms a cooling system with an external water supply device through the cooling water joint 3, cools the upper guide roller 5 and the lower guide roller 8, can reduce the temperature of the upper guide roller 5 and the lower guide roller 8, reduces the abrasion loss of the upper guide roller 5 and the lower guide roller 8, can also reduce the temperature of the guide frame 1, and plays roles of reducing the abrasion of the guide frame 1 and prolonging the service life of the guide frame.
As shown in fig. 1, the upper guide roller 5 is connected to the guide frame 1 through a bearing, an oil-gas joint 6 for oil-gas lubrication is arranged at the joint of the upper guide roller 5 and the guide frame 1, the oil-gas joint 6 can perform oil-gas lubrication on the upper guide roller 5 and the bearing, and the rotating upper guide roller 5 freely rotates at a high speed under the driving of a rolled piece through the bearing and the oil-gas lubrication. Similarly, lower deflector roll 8 passes through the bearing and connects on guide frame 1, and lower deflector roll 8 also is equipped with the oil gas joint 6 that is used for carrying on oil-gas lubrication with guide frame 1 junction, and this oil gas joint 6 can carry out oil-gas lubrication to lower deflector roll 8 and bearing, through bearing and oil-gas lubrication, rotatory deflector roll 8 is free high-speed rotation under the drive of rolled piece down.
During specific production, the pinch roll outlet guide device with the structure is arranged at the front opening of the rolling line laying head, so that the use condition is good, and no abnormity occurs. When the steel passing amount reaches about 1500 tons, the abrasion loss of the upper guide roller 5 and the lower guide roller 8 is as follows: about-1.5 mm, -1.0 mm. The rolling guide roller rotates normally, the cooling state is good, the red steel (wire) runs stably when entering the laying head, and the technological requirements are met. The worn rolling guide roller can be reused after the guide roller is replaced offline, and the phenomenon that the worn guide is scrapped is avoided. The phenomenon of surface scratching (rubbing) damage of large-size (phi 20.0mm or above) products is greatly reduced, and the surface scratching (rubbing) damage depth is reduced to about 0.07mm or more from about 0.30mm in the past. The surface scratches of the whole product of other products such as wire cold heading steel and the like are obviously improved compared with the finished product without the two-roller rolling guide device.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (5)
1. Pinch roll export is led and is defended device, including leading and defending the frame, its characterized in that: the guide device is characterized by further comprising an upper guide roller and a lower guide roller which are rotatably arranged on the guide frame, wherein the lower guide roller is located below the upper guide roller, and the upper guide roller and the lower guide roller are V-shaped guide rollers.
2. The pinch roll outlet guide and guard device of claim 1, wherein: the upper guide roller is provided with a first upper contact surface and a second upper contact surface which are used for being in contact with a rolled piece, the first upper contact surface and the second upper contact surface are conical surfaces, and the small-diameter end of the first upper contact surface is connected with the small-diameter end of the second upper contact surface.
3. The pinch roll outlet guide and guard device of claim 2, wherein: the first upper contact surface and the second upper contact surface are symmetrically arranged, and the small-diameter ends of the first upper contact surface and the second upper contact surface are located at the middle positions in the length direction of the upper guide roller.
4. The pinch roll outlet guide and guard device according to any one of claims 1 to 3, wherein: the lower guide roller is provided with a first lower contact surface and a second lower contact surface which are used for being in contact with a rolled piece, the first lower contact surface and the second lower contact surface are conical surfaces, and the small-diameter end of the first lower contact surface is connected with the small-diameter end of the second lower contact surface.
5. The pinch roll outlet guide and guard device according to claim 4, wherein: the first lower contact surface and the second lower contact surface are symmetrically arranged, and the small-diameter ends of the first lower contact surface and the second lower contact surface are located in the middle of the lower guide roller in the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112066.4U CN210280200U (en) | 2019-07-16 | 2019-07-16 | Pinch roll outlet guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112066.4U CN210280200U (en) | 2019-07-16 | 2019-07-16 | Pinch roll outlet guide device |
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| Publication Number | Publication Date |
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| CN210280200U true CN210280200U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921112066.4U Active CN210280200U (en) | 2019-07-16 | 2019-07-16 | Pinch roll outlet guide device |
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| CN (1) | CN210280200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535291A (en) * | 2022-03-07 | 2022-05-27 | 中天钢铁集团(南通)有限公司 | Scratch-proof equipment and method for high-speed wire surface |
-
2019
- 2019-07-16 CN CN201921112066.4U patent/CN210280200U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535291A (en) * | 2022-03-07 | 2022-05-27 | 中天钢铁集团(南通)有限公司 | Scratch-proof equipment and method for high-speed wire surface |
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