KR20120110339A - Apparatus for sensing entry of material - Google Patents

Abstract

PURPOSE: A material entry sensing device is provided to prevent a sensing error by removing scale formed on a material, thereby detecting the position of the material before inserted to a rolling unit. CONSTITUTION: A material entry sensing device comprises a rolling unit(10,60) rolling a material(S), a feed roller unit(20) which is arranged in the rear of the rolling unit and transfers the material discharged from the rolling unit, a sensing unit(30) which is arranged above the feed roller unit and senses the entry of the material, a fluid spray unit(40) which is arranged above the feed roller unit and sprays fluid to the upper side of the sensing unit, and a descaler unit(80) which sprays fluid to the side of the material transferred by the feed roller unit in order to remove scale from the material. [Reference numerals] (70) Control unit

Description

Material entry detection device {APPARATUS FOR SENSING ENTRY OF MATERIAL}

The present invention relates to a material entry detection device, and more particularly, to a material entry detection device that can accurately detect the entry of the material in the rolling process.

In general, steel production consists of a steelmaking process for producing molten iron, a steelmaking process for removing impurities from molten iron, a regeneration process in which iron in a liquid state becomes a solid, and a rolling process in which iron is made of steel or wire.

The rolling process refers to a process in which intermediate materials such as slabs and blooms produced in the playing process are passed between several rotating rollers to be stretched or thinned by applying a continuous force, and are roughly divided into hot rolling and cold rolling.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

It is an object of the present invention to provide a material entry detection device that can accurately detect the entry of the material in the rolling process.

Material entry detection device according to an aspect of the present invention comprises: a rolling unit for rolling the material; A conveying roller part disposed at the rear of the rolling part to convey the material sent from the rolling part; A detection unit provided in the transfer roller unit and detecting entry of the material; And a fluid injection part disposed above the feed roller part and injecting a fluid toward the feed roller part.

Preferably, the fluid injection portion, the discharge duct is disposed so that one end is in communication with the external fluid supply source, the other end is opposed to the transfer roller portion; And a discharge pump provided in the discharge duct and injecting the fluid flowing into one end of the discharge duct to the other end of the discharge duct.

Preferably, the apparatus further includes a steam suction unit which is provided in the transfer roller unit and sucks steam generated from the material.

More preferably, the water vapor suction unit, the suction inlet is located in the transfer roller, the water vapor generated from the material; A suction duct communicating with the suction port and discharging the introduced water vapor to the outside; And a suction pump provided in the suction duct to provide suction power in the suction duct.

Preferably, the apparatus further includes a descaler unit disposed in front of the sensing unit and injecting a fluid toward the side of the material conveyed by the feed roller unit to remove the scale formed on the material.

Preferably, the apparatus further includes a descaler unit disposed behind the sensing unit and injecting fluid toward the side of the material conveyed by the feed roller unit to remove the scale formed on the material.

More preferably, the feed roller unit, a feed roller; And a roller support rotatably supporting both ends of the feed roller, wherein the sensing unit and the descaler unit are installed on the roller support.

Preferably, the detection unit is a laser displacement sensor for irradiating a laser toward the material, and receives the laser reflected from the material to detect the entry of the material.

According to another aspect of the present invention, a material entry detection device includes: a rolling unit for rolling a material; A conveying roller part disposed at the rear of the rolling part to convey the material sent from the rolling part; A detection unit provided in the transfer roller unit and detecting entry of the material; And a water vapor suction part provided in the feed roller part and sucking water vapor generated from the material.

According to another aspect of the present invention, a material entry detection device includes: a rolling unit for rolling a material; A conveying roller part disposed in front of the rolling part and transferring the material to the rolling part; A detection unit provided in the transfer roller unit and detecting entry of the material; And a fluid injection part disposed above the feed roller part and injecting a fluid toward the feed roller part.

Preferably, the apparatus further includes a steam suction unit which is provided in the transfer roller unit and sucks steam generated from the material.

Preferably, the apparatus further includes a descaler unit disposed in front of the sensing unit and injecting a fluid toward the side of the material conveyed by the feed roller unit to remove the scale formed on the material.

According to the present invention, since the position of the material can be accurately identified before the material is introduced into the rolling part, the operation of various devices including the rolling part can be sequentially performed without delay, and thus the loss due to the production delay or the occurrence of an accident is delayed. Can be blocked, and the quality of the material can be improved.

In addition, according to the present invention, since foreign matters such as water vapor which are present around the sensing unit are removed by the fluid spraying unit, it is possible to accurately detect the entry of the material through the sensing unit.

In addition, according to the present invention, since water vapor generated around the material is removed by the water vapor suction unit, it is possible to accurately detect the entry of the material through the detection unit.

In addition, according to the present invention, since the scale formed on the surface of the material is removed by the descaler, it is possible to prevent an error from occurring when detecting the entry of the material through the sensing unit.

1 is a view schematically showing a material entry detection apparatus according to an embodiment of the present invention.
2 is a view showing a state in which the fluid injection unit is operated in the material entering detection device according to an embodiment of the present invention.
3 is a view showing a state in which the fluid injection unit and the water vapor suction unit in the material entering detection device according to an embodiment of the present invention.
4 is a view illustrating a state in which a sensing unit is operated in a material entering detection apparatus according to an embodiment of the present invention.
5 is a plan view schematically showing a material entry detection apparatus according to an embodiment of the present invention.
6 is a view showing a state in which the material entering detection device is operating according to another embodiment of the present invention.

Hereinafter, an embodiment of a material entering detection apparatus according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a view schematically showing a material entry detection apparatus according to an embodiment of the present invention, Figure 2 is a view showing a state in which the fluid injection unit operating in the material entry detection apparatus according to an embodiment of the present invention, 3 is a view illustrating a state in which the fluid injection unit and the steam suction unit operate in the material entering detection device according to the exemplary embodiment of the present invention. 4 is a view illustrating a state in which a sensing unit is operated in a material entering detection device according to an embodiment of the present invention, and FIG. 5 is a plan view schematically showing a material entering detection device according to an embodiment of the present invention. 6 is a view showing a state in which the material entering detection device is operating according to another embodiment of the present invention.

1 to 5, the material entering detection device 1 according to an embodiment of the present invention may include a first rolling unit 10, a transfer roller unit 20, a detection unit 30, and a fluid injection unit ( 40), the steam suction unit 50, the second rolling unit 60, the control unit 70, the descaler 80 is made.

The first rolling part 10 and the second rolling part 60 roll the material S to a target thickness and width such that the material S is easily rolled and finished in the finishing rolling process. The first rolling part 10 includes a first upper work roll 11 disposed on the upper side and a first lower work roll 12 disposed on the lower side.

The raw material S is rolled by the first upper work roll 11 and the first lower work roll 12 while being transported between the first upper work roll 11 and the first lower work roll 12. The raw material S rolled and sent from the first rolling unit 10 is transferred to the post process by the feed roller unit 20.

The conveying roller part 20 is disposed behind the first rolling part 10. The conveying roller part 20 includes a plurality of conveying rollers 21 for conveying the raw material S in a later process, and a roller support 22 for rotatably supporting both ends of the conveying rollers 21.

A plurality of feed rollers 21 are installed at regular intervals from the outlet side of the first rolling part 10 to the inlet side of the second rolling part 60. The roller support 22 has a top end higher than the top of the feed roller 21 so that the material S conveyed by the feed roller 21 is not separated outward.

The roller support 22 extends in the horizontal direction from the outlet side of the first rolling part 10 to the inlet side of the second rolling part 60 to serve as a rotation support of the feed roller 21.

The sensing unit 30 is provided on the roller support 22 to detect that the raw material S enters the feed roller 21. In this embodiment, the sensing unit 30 is installed on each side of the roller support 22, but is not limited to this one may be installed on one side of course.

The sensing unit 30 is disposed closer to the first rolling unit 10 than the second rolling unit 60. This is because the material S passes through the sensing unit 30 to control the driving of the second rolling unit 60 with the entry information of the raw material S obtained through the sensing unit 30, and then the second rolling unit ( This is to allow time for entry to 60).

The sensing unit 30 may be formed of a laser displacement sensor 30. The laser displacement sensor 30 is disposed on the side of the conveying roller 21 forming the conveying path of the raw material S, that is, the roller support 22, and irradiates the laser toward the conveying path of the raw material S. When the material S passes through the point where the laser is irradiated, the laser reflected from the surface of the material S is received by the laser displacement sensor 30 and the entry of the material S is detected.

When the sensing unit 30 detects the entry of the material S, the sensing unit 30 transmits it to the control unit 70, and the control unit 70, like the second rolling unit 60, based on the received entry information, the sensing unit 30. Controls the operation of various devices arranged behind the.

The laser displacement sensor 30 is disposed in parallel with the feed roller 21 so that the irradiation direction of the laser is perpendicular to the side surface of the material S.

The descaler unit 80 is located at the outlet side of the first rolling unit 10. The descaler unit 80 is installed on the roller support 22 and removes the scale formed on the surface of the material S by spraying cooling water toward the material S.

The descaler 80 is disposed in front of the detector 30 (left of FIG. 1). Therefore, since the scale formed on the surface of the material S before passing through the detection unit 30 is removed by the descaler unit 80, the detection accuracy of the detection unit 30 is increased by the scale surrounding the material S. The degradation can be prevented.

The descaler 80 may be disposed at the rear of the detector 30 in consideration of the reverse movement of the raw material S during the rough rolling process. Even in this case, before the material S passes through the sensing unit 30, the scale formed on the surface by the descaler unit 80 is removed.

The fluid injection part 40 is disposed above the feed roller part 20. The fluid injection unit 40 removes water vapor between the sensing unit 30 and the material S by spraying the fluid at a high pressure toward the material S conveyed by the feed roller 21. In this embodiment the fluid is air.

As described above, since foreign substances such as water vapor existing between the detection unit 30 and the material S may be removed by the fluid injected from the fluid injection unit 40, the material S may be removed through the detection unit 30. The entry of can be detected accurately.

The fluid injection unit 40 includes a discharge duct 41 and a discharge pump 42. The discharge duct 41 is communicated with a fluid supply source (not shown), one end of which is disposed outside the material entry detecting device 1, and the other end 41a is located above the feed roller 21 so as to face the material S. Is placed on. The other end 41a of the discharge duct 41 is disposed perpendicular to the feed roller 21.

Since the water vapor is moved to another place by the fluid injected from the fluid injection unit 40 before contacting the laser irradiated from the detection unit 30, the detection unit 30 is not affected by the water vapor.

The discharge pump 42 is provided in the discharge duct 41. The discharge pump 42 is a machine for transporting fluid using a pressure action. The discharge pump 42 provides a suction force in the discharge duct 41 to introduce the fluid from the fluid supply source into the discharge duct 41 so that the other end of the discharge duct 41 ( Spray onto 41a). Since the configuration and operation principle of the discharge pump 42 will be general matter to those skilled in the art, detailed description thereof will be omitted.

The steam suction unit 50 includes a suction port 51, a suction duct 52, and a suction pump 53, and sucks steam generated by the material S. The water vapor suction unit 50 is provided in the transfer roller unit 20, and since the water vapor generated around the material S sucks water vapor before it affects the operation of the detection unit 30, the water vapor detection unit ( It is possible to prevent the detection accuracy of 30) from deteriorating.

The suction port 51 is formed in a funnel shape to facilitate suction of the water vapor and is disposed at a height corresponding to the transfer path of the raw material S. Since the suction port 51 is installed on the roller support 22 in front of the sensing unit 30, the steam inlet is sucked before the steam generated by the material S affects the operation of the sensing unit 30.

The suction port 51 communicates with the suction duct 52 forming a hollow cylindrical shape. The suction duct 52 discharges the water vapor sucked through the suction port 51 to the outside, and the suction pump 53 is provided therein. The suction pump 53 provides a suction force in the suction duct 52 so that water vapor is sucked through the suction port 51.

One end of the suction port 51 and the suction duct 52 which is in contact with the suction port 51 is formed through the roller support 22. The suction port 51 may be formed to be concave inside the roller support 22 so as not to be exposed to the inner surface of the roller support 22. Accordingly, the collision between the material S and the suction port 51 is prevented when the material S is moved.

The second rolling part 60 is disposed behind the feed roller part 20 and rolls the material S to a target thickness and width. The second rolling part 60 includes a second upper work roll 61 disposed on the upper side and a second lower work roll 62 disposed on the lower side, and the raw material S includes the second upper work roll. It is rolled by the second upper work roll 61 and the second lower work roll 62 while being transferred between the 61 and the second lower work roll 62.

The control unit 70 is connected to the sensing unit 30 when the entry of the material S is detected by the sensing unit 30 of the sensing unit 30 including the second rolling unit 60 based on the entry information. Control the operation of the various devices arranged behind. As a result, the rolling process can be carried out sequentially without delay in work, so that loss due to production delay or accident can be prevented.

On the other hand, when the entry of the material S is detected, the controller 70 may guide the entry of the material S through a display unit (not shown) so that an operator may refer to it.

Referring to FIG. 6, an apparatus for detecting entry of materials according to another embodiment of the present invention will be described.

Material entry detection device 2 according to another embodiment of the present invention is a rolling unit 110, the transfer roller 120, the detection unit 130, the fluid injection unit 140, steam suction unit 150, the control unit And a descaler unit 180.

The rolling unit 110 rolls the material S to a target thickness and width such that the material S is easily finished in the finishing rolling process. The rolling unit 110 includes an upper work roll 111 disposed above and a lower work roll 112 disposed below. The rolling part 110 of this embodiment is the structure corresponding to the 1st rolling part 10 in an Example.

The conveying roller part 120 is disposed in front of the rolling part 110 to transfer the raw material S to the rolling part 110. The conveying roller part 120 includes a plurality of conveying rollers 121 for conveying the raw material S in a later process, and a roller support 122 for rotatably supporting both ends of the conveying rollers 121.

The sensing unit 130 is provided in the roller support 122 to detect that the material S enters the feed roller 121. That is, the sensing unit 130 detects that the raw material S enters the feed roller 121 before entering the rolling unit 110, and transmits such entry information to the control unit 170.

The sensing unit 130 may be formed of the laser displacement sensor 130. The laser displacement sensor 130 is disposed on the side of the feed roller 121 forming the conveying path of the raw material S, that is, the roller support 122, and irradiates the laser toward the conveying path of the raw material S. When the material S passes through the point where the laser is irradiated, the laser reflected from the surface of the material S is received by the laser displacement sensor 130 and the entry of the material S is detected.

When the sensing unit 130 detects the entry of the material S, the sensing unit 130 transmits it to the control unit 170, and the control unit 170 is located behind the sensing unit 130 such as the rolling unit 110 based on the received entry information. Control the operation of the various devices arranged.

The laser displacement sensor 130 is disposed in parallel with the feed roller 121 so that the irradiation direction of the laser is perpendicular to the side surface of the material (S).

The descaler unit 180 is installed in front of the rolling unit 110. The descaler unit 180 is installed on the roller support 122 and removes the scale formed on the surface of the material S by spraying cooling water toward the material S.

The descaler 180 is disposed in front of the detector 130. Therefore, since the scale formed on the surface of the material S before passing through the sensing unit 130 is removed by the descaler 180, the sensing accuracy of the sensing unit 130 is increased by the scale surrounding the material S. The degradation can be prevented.

The fluid injection part 140 is disposed above the feed roller part 120. The fluid injection unit 140 removes water vapor between the sensing unit 130 and the material S by spraying the fluid at a high pressure toward the material S transported by the feed roller 121. In this embodiment the fluid is air.

As such, since foreign matters such as water vapor existing between the sensing unit 130 and the material S may be removed by the fluid injected from the fluid injection unit 140, the material S may be removed through the detection unit 130. The entry of can be detected accurately.

Referring to FIGS. 3 and 6, the fluid injection unit 140 includes a discharge duct 41 and a discharge pump 42. The discharge duct 41 is communicated with a fluid supply source (not shown), one end of which is disposed outside the material entry detecting device 2, and the other end 41a is located above the feed roller 121 so as to face the material S. Is placed on. The other end 41a of the discharge duct 41 is disposed perpendicular to the feed roller 21.

Since the water vapor is moved to another place by the fluid injected from the fluid injection unit 140 before contacting the laser irradiated from the detection unit 130, the detection unit 130 is not affected by the water vapor.

The discharge pump 42 is provided in the discharge duct 41. The discharge pump 42 is a machine for transporting fluid using a pressure action. The discharge pump 42 provides a suction force in the discharge duct 41 to introduce the fluid from the fluid supply source into the discharge duct 41 so that the other end of the discharge duct 41 ( Spray onto 41a). Since the configuration and operation principle of the discharge pump 42 will be general matter to those skilled in the art, detailed description thereof will be omitted.

The steam suction unit 150 includes a suction port 51, a suction duct 52, and a suction pump 53, and sucks steam generated by the material S. The water vapor suction unit 150 is provided in the transfer roller unit 120, and since the water vapor generated around the material S sucks water vapor before it affects the operation of the detection unit 130, the water vapor detection unit ( Degradation of the detection accuracy of 130 may be prevented.

The suction port 51 is formed in a funnel shape to facilitate suction of the water vapor and is disposed at a height corresponding to the transfer path of the raw material S. Since the suction port 51 is installed on the roller support 122 in front of the sensing unit 130, the suction port 51 sucks the steam before the steam generated by the material S affects the operation of the sensing unit 130.

The suction port 51 communicates with the suction duct 52 forming a hollow cylindrical shape. The suction duct 52 discharges the water vapor sucked through the suction port 51 to the outside, and the suction pump 53 is provided therein. The suction pump 53 provides a suction force in the suction duct 52 so that water vapor is sucked through the suction port 51.

One end of the suction port 51 and the suction duct 52 which is in contact with the suction port 51 is formed through the roller support 122. The suction port 51 may be formed to be concave inside the roller support 122 so as not to be exposed to the inner surface of the roller support 122. Accordingly, the collision between the material S and the suction port 51 is prevented when the material S is moved.

The control unit 170 is connected to the sensing unit 130 and when the entry of the material (S) is detected by the sensing unit 130 on the rear of the sensing unit 130 including the rolling unit 110 based on the entry information. Control the operation of the various devices arranged. Thereby, progress of a rolling process can be adjusted sequentially and productivity can be improved.

Hereinafter, a method of detecting entry of a material using a material entry detection device according to an embodiment of the present invention will be described.

When the raw material S is sent out from the first rolling unit 10, the descaler unit 80 is operated first. As a result, since the scale formed on the surface of the material S is removed, it is possible to prevent the entry detection accuracy of the material S from being degraded by the scale.

At the same time as the operation of the descaler unit 80 or after the operation of the descaler unit 80, the fluid injection unit 40 and the water vapor suction unit 50 are operated. As a result, the water vapor present in the periphery of the sensing unit 30 is not only sucked through the steam suction unit 50, but also dispersed through the fluid spray unit 40, so that the sensing unit 30 is affected by the water vapor. You will not receive. By removing the water vapor, the measurement accuracy of the detector 30 is improved.

When the sensing unit 30 detects the entry of the raw material S on the feed roller 21, the sensing unit 30 transmits it to the control unit 70. The control unit 70 controls the operation of various devices installed behind the sensing unit 30 including the second rolling unit 60 based on the transmitted entry information. Therefore, according to the present invention, it is possible to accurately detect the entry of the material (S) by the detection unit 30, and based on this can be carried out sequentially without any delay in the subsequent rolling process, loss caused by production delay or accidents, etc. Can be blocked beforehand.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

In addition, the material entry detection device for detecting the entry of the material in the rough rolling process has been described as an example, but since this is merely exemplary, the technical idea of the present invention may be applied to other processes other than the rough rolling process.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: first rolling part 20: feed roller part
30: detection unit 40: fluid injection unit
50: water vapor suction unit 60: second rolling unit
70 control unit 80 descaler unit

Claims (12)

A rolling unit for rolling a material;
A conveying roller part disposed at the rear of the rolling part to convey the material sent from the rolling part;
A detection unit provided in the transfer roller unit and detecting entry of the material; And
And a fluid injection part disposed above the feed roller part and injecting a fluid toward the feed roller part.
The method of claim 1,
The fluid spraying unit may include: a discharge duct having one end communicated with an external fluid supply source and the other end facing the transfer roller part; And
And a discharge pump provided in the discharge duct and injecting a fluid flowing into one end of the discharge duct to the other end of the discharge duct.
The method of claim 1,
The material entering detection device further comprises a water vapor suction unit which is provided in the feed roller portion, and sucks the water vapor generated from the material.
The method of claim 3,
The steam suction unit, the suction port is located in the conveying roller portion, the water vapor generated from the material flows;
A suction duct communicating with the suction port and discharging the introduced water vapor to the outside; And
And a suction pump provided in the suction duct to provide a suction force in the suction duct.
The method of claim 1,
And a descaler unit disposed in front of the sensing unit and injecting a fluid toward a side of the workpiece conveyed by the feed roller unit to remove the scale formed in the workpiece.
The method of claim 1,
And a descaler unit disposed behind the sensing unit and spraying a fluid toward the side of the workpiece conveyed by the feed roller unit to remove the scale formed on the workpiece.
The method according to claim 5 or 6,
The feed roller unit, a feed roller; And
It includes a roller support for rotatably supporting both ends of the feed roller,
And the sensing unit and the descaler unit are installed on the roller support.
The method of claim 1,
And the sensing unit is a laser displacement sensor for irradiating a laser toward the material and receiving a laser reflected from the material to detect the entry of the material.
A rolling unit for rolling a material;
A conveying roller part disposed at the rear of the rolling part to convey the material sent from the rolling part;
A detection unit provided in the transfer roller unit and detecting entry of the material; And
The material entering detection device, characterized in that provided in the feed roller portion, including a water vapor suction unit for sucking the steam generated from the material.
A rolling unit for rolling a material;
A conveying roller part disposed in front of the rolling part and transferring the material to the rolling part;
A detection unit provided in the transfer roller unit and detecting entry of the material; And
And a fluid injection part disposed above the feed roller part and injecting a fluid toward the feed roller part.
The method of claim 10,
The material entering detection device further comprises a water vapor suction unit which is provided in the feed roller portion, and sucks the water vapor generated from the material.
The method of claim 10,
And a descaler unit disposed in front of the sensing unit and injecting a fluid toward a side of the workpiece conveyed by the feed roller unit to remove the scale formed in the workpiece.

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