KR102451006B1 - Apparatus for introducing material to charge in heat treatment furnace - Google Patents

Abstract

Disclosed is a device for inducing material loading into a heat treatment furnace.
The device for inducing material charging into a heat treatment furnace according to an embodiment of the present invention is disposed under the material transfer path between the material transfer unit for transferring the material to the charging port of the heat treatment furnace and the charging port to measure the distance to the material distance measuring sensor; a material lifting unit provided between the material transfer unit and the distance measuring sensor and including an arcuate lifting member and configured to rotate the lifting member; and a control unit connected to the material transfer unit, the distance measuring sensor, and the lifting unit to control the material to be charged into the heat treatment furnace through the charging port. Including, the control unit when the distance to the material measured by the distance measuring sensor is less than a preset lifting required distance, the lifting member rotates a predetermined angle in one direction of the material between the material transfer unit and the distance measuring sensor The part can be lifted up.

Description

Induction device for material charging into a heat treatment furnace

The present invention relates to a device for inducing material loading into a heat treatment furnace.

A material such as a steel sheet is charged into a heat treatment furnace for heat treatment.

The heat treatment furnace is formed with a charging port to which the material is charged, and a charging door is provided so as to be able to ascend and descend in a portion of the heat treatment furnace above the charging port to open and close the charging port.

In a state in which the charging port of the heat treatment furnace is opened by the charging door, the material is transferred to the charging port by the material transfer unit including a plurality of transfer rolls, and the material transferred to the charging port is transferred to the inside of the heat treatment furnace through the charging port. is loaded

The material may include a downward convex shape defect portion or an upwardly convex shape defect portion. Also, the material may sag under its own weight during transport.

If the convex-shaped defective part of the material or the material is pushed down by its own weight during transportation, during the transfer and charging of the material to the heat treatment furnace, the downward convex defective portion of the material or the part of the material that hangs down is It hits or gets caught with a stopper placed at the bottom of the unit so that the charging door does not descend any further. Accordingly, the material is not smoothly charged into the heat treatment furnace through the charging port.

In order to solve this problem, conventionally, a crane or the like lifts the material, or a worker lifts the material with a lever or the like. However, in the case of lifting the material with a crane, etc., the material collides with the material transfer unit, etc., and the material is damaged or the material transfer unit is damaged when the material is put down. There was a problem such as getting caught between this material and the charging port, causing a safety accident.

On the other hand, in the case of the defective portion convex above the material, during the transfer and charging of the material to the heat treatment furnace, it hits or gets caught in the charging door. Even by this, the material is not smoothly charged into the heat treatment furnace through the charging port.

Korean Patent Publication No. 0215183 (2001.03.02. Announcement) Korean Patent Publication No. 1864884 (2018.06.07. Announcement)

The present invention has been made in recognition of at least one of the needs or problems occurring in the prior art as described above.

One aspect of the object of the present invention is to allow the material having a downward convex or upward convex shape defect to be smoothly charged into the heat treatment furnace through the charging port, and smoothly even when the material sags downward due to its own weight during transport. It is to be charged inside the heat treatment furnace through the heat treatment furnace, so that damage to equipment such as the material transfer unit, the occurrence of defects in the material, or the occurrence of safety accidents of workers, etc. are minimized.

The apparatus for inducing material loading into a heat treatment furnace according to an embodiment for realizing at least one of the above problems may include the following features.

The device for inducing material charging into a heat treatment furnace according to an embodiment of the present invention is disposed under the material transfer path between the material transfer unit for transferring the material to the charging port of the heat treatment furnace and the charging port to measure the distance to the material distance measuring sensor; a material lifting unit provided between the material transfer unit and the distance measuring sensor and including an arcuate lifting member and configured to rotate the lifting member; and a control unit connected to the material transfer unit, the distance measuring sensor, and the lifting unit to control the material to be charged into the heat treatment furnace through the charging port. Including, the control unit when the distance to the material measured by the distance measuring sensor is less than or equal to a preset lifting demand distance, the lifting member rotates a predetermined angle in one direction of the material between the material transfer unit and the distance measuring sensor The part can be lifted up.

In this case, a contact support roll in contact with the material may be rotatably provided on one side of the lifting member.

In addition, the contact support roll may be coated with rubber.

And, the contact support roll may have an elliptical shape.

In addition, the material lifting unit is a rotation shaft rotatably provided between the material transfer unit and the distance measuring sensor, the lifting member is connected to one side and a clamping unit connected to the rotation shaft at the other side, and the rotation shaft is connected to the The rotation shaft may be rotated and further include a rotation driving unit connected to the control unit.

The lifting member and the clamping unit may be plural.

In addition, the clamping unit includes a first clamping member to which the lifting member is connected and surrounds a part of the rotation shaft, and one side is pivotably connected to one side of the first clamping member and surrounds the rest of the rotation shaft, and the other side is the first side It may include a second clamping member detachably connected to the other side of the clamping member.

In addition, the charging port is opened and closed by a charging door movably provided in the heat treatment furnace, and the heat treatment furnace has a door driving unit connected to the charging door to raise and lower the charging door, and the opening and closing position of the charging door A plurality of opening/closing position measuring sensors for measuring may be provided, and the control unit may be connected to the door driving unit and the plurality of opening/closing position measuring sensors.

In addition, the control unit is the charging through the door driving unit and the plurality of opening and closing position measuring sensors so that the distance from the distance measuring sensor to the opening and closing position of the charging door is greater than the distance to the material measured by the distance measuring sensor. The opening and closing position of the door can be adjusted.

And, the material may be a steel plate.

As described above, according to the embodiment of the present invention, the material having a downward convex or upward convex shape defect can be smoothly charged into the heat treatment furnace through the charging port, and when the material sags downward due to its own weight during transport Also, it can be smoothly charged into the heat treatment furnace through the charging port, so that damage to equipment such as a material transfer unit, occurrence of defects in materials, or occurrence of safety accidents for workers can be minimized.

1 is a view showing an embodiment of a material charging induction device into a heat treatment furnace according to the present invention.
2 is a plan view, a front view, a side view, and a rear view of a lifting member, a rotating shaft, and a clamping unit of a material lifting unit according to an embodiment of the material loading induction device into a heat treatment furnace according to the present invention.
Figure 3 is a front view of the material lifting unit of an embodiment of the material charging induction device to the heat treatment furnace according to the present invention.
4 to 9 are views showing the operation of an embodiment of the device for inducing material charging into a heat treatment furnace according to the present invention. In the case of sagging by the sagging by the material, it indicates that the material is lifted and charged into the heat treatment furnace, and FIGS. 7 to 9 show that the opening and closing position of the charging door is adjusted in the case of the convex-shaped defective part of the material to be charged into the heat treatment furnace.

In order to help the understanding of the features of the present invention as described above, it will be described in more detail below with respect to the material charging induction device in the heat treatment furnace related to the embodiment of the present invention.

The embodiments described below will be described on the basis of the most suitable embodiments for understanding the technical features of the present invention, and the technical features of the present invention are not limited by the described embodiments. Examples are to illustrate that the present invention can be implemented. Accordingly, the present invention is capable of various modifications within the technical scope of the present invention through the embodiments described below, and these modified embodiments will fall within the technical scope of the present invention. In addition, in the reference numerals in the accompanying drawings to help the understanding of the embodiments to be described below, related elements among the elements that perform the same operation in each embodiment are indicated by the same or extended numbers.

Hereinafter, an embodiment of an apparatus for inducing material charging into a heat treatment furnace according to the present invention will be described with reference to FIGS. 1 to 9 .

1 is a view showing an embodiment of a device for inducing material loading into a heat treatment furnace according to the present invention, and FIG. 2 is a lifting member of a material lifting unit of an embodiment of the device for inducing material loading into a heat treatment furnace according to the present invention; It is a plan view, a front view, a side view, and a rear view of the rotating shaft and the clamping unit, and FIG. 3 is a front view of the material lifting unit of an embodiment of the material charging induction device into the heat treatment furnace according to the present invention.

In addition, Figure 4 to Figure 9 is a view showing the operation of an embodiment of the material charging induction device to the heat treatment furnace according to the present invention, Figures 4 to 6 are the case of a defective portion convex downwards of the material or the material is being transported In the case of sagging by its own weight, it indicates that the material is lifted and charged into the heat treatment furnace, and FIGS. 7 to 9 show that in the case of a defective portion convex upwards of the material, the opening and closing position of the charging door is adjusted to be charged into the heat treatment furnace.

The apparatus 100 for inducing material loading into a heat treatment furnace according to the present invention may include a distance measuring sensor 200 , a material lifting unit 300 , and a control unit 400 .

In the heat treatment furnace HF in which the material MT is charged and heat-treated, a charging hole IC may be formed as shown in FIG. 1 . In the heat treatment furnace HF of the upper portion of the charging port IC, a charging door DR is provided so as to be able to move up and down, so that the charging port IC can be opened and closed. The charging door DR may be raised and lowered by the door driving unit 500 provided in the heat treatment furnace HF. The door driving unit 500 may be connected to the control unit 400 . And, the control unit 400 can adjust the opening and closing position of the charging door (DR) through the door driving unit (500). A stopper ST is provided in the heat treatment furnace HF under the charging port IC to prevent the charging door DR from descending any further.

The material to be heat treated (MT) is a heat treatment furnace through the charging port (IC) in a state in which the charging port (IC) of the heat treatment furnace (HF) is opened by the charging door (DR) as shown in FIGS. 4 to 9 . (HF) It can be charged inside and heat-treated. The material MT to be heat treated in the heat treatment furnace HF may be, for example, a steel sheet. However, the material MT to be heat-treated is not particularly limited, and any material MT may be used as long as the material MT requires heat treatment.

The material MT may be transferred to the charging port IC of the heat treatment furnace HF by the material transfer unit TM. The material transfer unit TM may be, for example, a roller table in which a plurality of transfer rolls RT are rotatably spaced apart from each other at a predetermined interval as shown in FIG. 1 . However, the material transfer unit TM is not particularly limited, and any known material may be used as long as the material MT can be transferred to the charging port IC of the heat treatment furnace HF.

The distance measuring sensor 200 may be disposed below the material transfer path RM between the material transfer unit TM and the charging port IC of the heat treatment furnace HF. For example, as shown in FIG. 1 , the distance measuring sensor 200 may be disposed under the material transfer path RM adjacent to the charging port IC of the heat treatment furnace HF. However, the arrangement position of the distance measuring sensor 200 is not particularly limited, and if it is below the material transfer path (RM) between the material transfer unit (TM) and the charging port (IC) of the heat treatment furnace (HF), it can be arranged at any position. can

The distance measuring sensor 200 may measure the distance LM to the material MT. The distance measuring sensor 200 is the distance ( LM) can be measured. The distance measuring sensor 200 may measure the distance LM to the material MT by using electromagnetic waves such as a laser. However, as long as the distance measuring sensor 200 can measure the distance to the material MT, such as measuring the distance to the material MT using sound waves, any known type is possible.

The distance measuring sensor 200 may be connected to the control unit 400 . Accordingly, the distance LM from the distance measuring sensor 200 to the measured material MT may be transmitted to the controller 400 .

As shown in FIG. 4 , when the downwardly convex defective portion PL of the material MT is charged into the heat treatment furnace HF through the charging port IC of the heat treatment furnace HF, distance measurement The distance LM from the sensor 200 to the measured material MT may be less than or equal to a preset lifting required distance LL. The lifting required distance LL may be, for example, a distance from the distance measuring sensor 200 to the upper end of the stopper ST of the heat treatment furnace HF. In addition, even when the part of the material MT charged inside the heat treatment furnace HF through the charging port IC of the heat treatment furnace HF sags down by its own weight, the material measured by the distance measurement sensor 200 The distance (LM) to the (MT) may be less than or equal to the preset lifting required distance (LL).

In this way, when the distance LM from the distance measuring sensor 200 to the measured material MT is less than or equal to the preset lifting required distance LL, the downward convex shape defect PL of the material MT or A portion of the material MT that is drooping down by its own weight may hit or catch on the stopper ST. Accordingly, the material MT cannot be smoothly charged into the heat treatment furnace HF through the charging port IC.

In this case, the control unit 400 is described later and as shown in FIG. 5 , the arcuate lifting member 310 included in the material lifting unit 300 is clockwise to correspond to the transport direction of the material MT in one direction, for example. can be rotated by a predetermined angle. Accordingly, a portion of the material MT between the material transfer unit TM and the distance measuring sensor 200 may be lifted by the lifting member 310 . Accordingly, the convex defective portion PL of the material MT or the portion of the material MT drooping down does not hit or catch the stopper ST, and the heat treatment furnace (HF) It can be loaded inside.

In the heat treatment furnace HF, as shown in FIG. 1 , a plurality of opening/closing position measuring sensors S1, S2, S3, S4, and S5 may be provided apart from each other in the height direction. The opening and closing position of the charging door DR can be known by the plurality of opening and closing position measuring sensors S1, S2, S3, S4, and S5. In addition, the distance from the distance measuring sensor 200 to the plurality of opening/closing position measuring sensors (S1, S2, S3, S4, S5) can be known, respectively. Thereby, the control unit 400 determines the distance LM from the distance measuring sensor 200 to the material MT measured and the distance LD from the distance measuring sensor 200 to the opening and closing position of the charging door DR. can be compared.

7, the distance LM from the distance measuring sensor 200 to the material MT measured is greater than or equal to the distance LD from the distance measuring sensor 200 to the opening and closing position of the charging door DR. When this occurs, the material MT may collide with or catch the charging door DR. As such, when the material MT hits or gets caught in the charging door DR, the material MT cannot be charged into the heat treatment furnace HF through the charging port IC. For example, in the case of the shape defective part PU convex above the material MT, the distance LM measured by the distance measurement sensor 200 to the shape defective portion PU convex above the material MT is the distance measurement sensor. It may be more than the distance (LD) from (200) to the opening and closing position of the charging door (DR).

In this case, the control unit 400 will be described later and as shown in FIG. 8 , the door driving unit 500 for driving the charging door DR and the plurality of opening/closing position measuring sensors S1, S2, S3, S4, and S5. Through, so that the distance (LD) from the distance measuring sensor 200 to the opening and closing position of the charging door (DR) is greater than the distance (LM) from the distance measuring sensor 200 to the material (MT), the charging door ( The opening and closing position of DR) can be adjusted. Accordingly, the material MT may be charged into the heat treatment furnace HF through the charging port IC without colliding with or being caught on the charging door DR.

The material lifting unit 300 may be provided between the material transfer unit TM and the distance measuring sensor 200 . In addition, the material lifting unit 300 may include an arcuate lifting member 310 . And, the material lifting unit 300 may be configured so that the lifting member 310 rotates. By rotating the arc-shaped lifting member 310 at a predetermined angle in one direction, for example, clockwise to correspond to the transfer direction of the material MT, as shown in FIG. 5 , the material transfer unit TM and the distance measuring sensor 200 ) between the parts of the material MT can be lifted. As a result, the convex defective portion PL of the material MT or the portion of the material MT that hangs down due to its own weight does not collide with or catch the stopper ST of the charging port IC. IC) may be charged into the heat treatment furnace (HF).

A contact support roll 311 may be rotatably provided on one side of the lifting member 310 . The contact support roll 311 may contact the material MT. For example, as shown in FIG. 2 , one side of the lifting member 310 may be formed in a 'C' shape. In addition, a rotation support hole HS may be formed at one side of the 'C'-shaped lifting member 310 . In addition, shaft portions 311a may be formed on both sides of the contact support roll 311 , respectively. The shaft portion 311a of the contact support roll 311 is rotatably inserted into the rotation support hole HS of one side of the 'C'-shaped lifting member 310 , and the contact support is provided on one side of the lifting member 310 . The roll 311 may be rotatably provided. However, the configuration in which the contact support roll 311 is rotatably provided on one side of the lifting member 310 is not particularly limited, and any known configuration is possible.

1 and 2 , two contact support rolls 311 may be rotatably provided on one side of the lifting member 310 at a predetermined distance from each other on one side of the lifting member 310 back and forth. And, the rear contact support roll 311 is in contact with the material MT at a position where the lifting member 310 is not rotated by a predetermined angle in one direction, as shown in FIGS. 4 and 6 and 7 to 9 . can In addition, the front contact support roll 311 may contact the material MT at a position in which the lifting member 310 is rotated by a predetermined angle in one direction as shown in FIG. 5 .

However, the number and arrangement of the contact support rolls 311 rotatably provided on one side of the lifting member 310 are not particularly limited, and the number and arrangement of the contact support rolls 311 that can contact the material MT. Any number and arrangement are possible.

The contact support roll 311 may be coated with rubber. Accordingly, even when the contact support roll 311 comes into contact with the material MT, the material MT may not be damaged.

In addition, the contact support roll 311 may have an elliptical shape. Accordingly, even if the contact support roll 311 is in contact with the material MT, the material MT may not be damaged by both ends of the contact support roll 311 .

The material lifting unit 300 may further include a rotation shaft 320 , a clamping unit 330 , and a rotation driving unit 340 as shown in FIG. 2 .

The rotating shaft 320 may be rotatably provided between the material transfer unit TM and the distance measuring sensor 200 . In addition, the rotation shaft 320 may be disposed in the width direction of the material MT. For example, as shown in FIG. 3, on both sides between the material transfer unit TM and the distance measuring sensor 200, bearings BR may be provided, respectively. And, each of both sides of the rotary shaft 320 is connected to the bearing (BR) provided on each of both sides between the material transfer unit (TM) and the distance measuring sensor 200, the rotary shaft 320 is the material transfer unit (TM) and the distance measuring sensor 200 may be rotatably provided.

The clamping unit 330 may have one side connected to the lifting member 310 and the other side connected to the rotating shaft 320 . Accordingly, the lifting member 310 may also rotate in one direction or the other direction by the rotation shaft 320 rotating in one direction or the other direction. As shown in FIGS. 1 and 2 , the clamping unit 330 may include a first clamping member 331 and a second clamping member 332 .

A lifting member 310 may be connected to the first clamping member 331 as shown in FIGS. 1 and 2 . For example, the lifting member 310 may be connected to the first clamping member 331 by welding or the like. However, the configuration in which the lifting member 310 is connected to the first clamping member 331 is not particularly limited, and any known configuration is possible. The first clamping member 331 may surround a portion of the rotation shaft 320 .

One side of the second clamping member 332 may be pivotably connected to one side of the first clamping member 331 . For example, as shown in FIG. 2 , the pivot shaft SR is connected to one side of the first clamping member 331 and one side of the second clamping member 332 , so that one side of the second clamping member 332 is connected to the second clamping member 332 . 1 It may be pivotably connected to one side of the clamping member 331 . The second clamping member 332 may surround the remaining portion of the rotation shaft 320 . In addition, the other side of the second clamping member 332 may be detachably connected to the other side of the first clamping member 331 . Accordingly, the lifting member 310 can be easily connected to and separated from the rotation shaft 320 . For example, first and second connecting portions 331a and 332a are formed on the other sides of the first and second clamping members 331 and 332, respectively, and the first and second connecting portions 331a and 332a are formed by bolts BT and nuts NT, etc. is connected, so that the other side of the second clamping member 332 may be detachably connected to the other side of the first clamping member 331 . However, the configuration in which the other side of the second clamping member 332 is detachably connected to the other side of the first clamping member 331 is not particularly limited, and any known configuration is possible.

The clamping unit 330 may further include a key member 333 as shown in FIG. 2 . The key member 333 is provided between the first clamping member 331 and the rotating shaft 320, and when the rotating shaft 320 rotates, between the first and second clamping members 331 and 332 surrounding the rotating shaft 320. can be prevented from slipping.

The rotation driving unit 340 is connected to the rotation shaft 320 to rotate the rotation shaft 320 and may be connected to the control unit 400 . Accordingly, the control unit 400 may cause the lifting member 310 to rotate by allowing the rotation shaft 320 to rotate through the rotation drive unit 340 . The rotation driving unit 340 is, for example, as shown in FIG. 3 , a universal joint 341 connected to the rotation shaft 320 , a reducer 342 connected to the universal joint 341 , and a reducer 342 . It may include a rotation driving motor 343 that is. In this case, the control unit 400 may be connected to the rotation driving motor 343 . In addition, the rotation shaft 320 may be rotated by the control unit 400 driving the rotation driving motor 343 . However, the configuration of the rotation driving unit 340 is not particularly limited, and any known configuration is possible as long as it is connected to the rotation shaft 320 so that the rotation shaft 320 rotates and is connected to the control unit 400 .

The lifting member 310 and the clamping unit 330 may be plural as shown in FIG. 3 . Accordingly, the plurality of lifting members 310 may be connected to the rotation shaft 320 at predetermined intervals by each of the plurality of clamping units 330 . Thereby, the plurality of lifting members 310 are rotated by a predetermined angle in one direction by the rotation of the rotation shaft 320 at a predetermined angle in one direction, and the material MT between the material transfer unit TM and the distance measurement sensor 200 . ) can be lifted.

The control unit 400 is connected to the material transfer unit TM, the distance measurement sensor 200 and the material lifting unit 300 so that the material MT is charged into the heat treatment furnace HF through the charging port IC. can be controlled

The control unit 400 may be connected to, for example, a transfer roll driving motor (not shown) connected to the transfer roll RT of the material transfer unit TM to rotate the transfer roll RT. In addition, the control unit 400 may control the transfer roll driving motor to adjust the rotation speed of the transfer roll RT, thereby adjusting the transfer speed of the material MT transferred by the material transfer unit TM. In addition, the control unit 400 may be connected to the distance measuring sensor 200 to receive the distance LM from the distance measuring sensor 200 to the measured material MT. And, the control unit 400, for example, as shown in FIG. 3, may be connected to the rotation drive motor 343 of the rotation drive unit 340 of the material lifting unit 300. And, by driving the rotation driving motor 343 to rotate the rotation shaft 320, the lifting member 310 of the material lifting unit 300 is rotated by a predetermined angle in one direction or the other direction, for example, clockwise or counterclockwise. can do.

If the distance LM from the distance measuring sensor 200 to the measured material MT is less than or equal to the preset lifting required distance LL, as shown in FIG. 5 , the lifting member 310 is It may be rotated by a predetermined angle in one direction, for example, in a clockwise direction to correspond to the feeding direction of the material MT. Accordingly, a portion of the material MT between the material transfer unit TM and the distance measuring sensor 200 may be lifted by the lifting member 310 .

As shown in FIG. 4, when the convex defective portion PL of the material MT or the portion of the material MT drooping down by its own weight is transferred to the charging port IC of the heat treatment furnace HF In, the distance LM from the distance measuring sensor 200 to the measured material MT may be less than or equal to the preset lifting required distance LL. In addition, the convex-shaped defective portion PL of the material MT or the portion of the material MT drooping down may collide with or catch on the stopper ST disposed under the charging hole IC. In this case, as described above, by causing the lifting member 310 to rotate a predetermined angle in one direction by the control unit 400, as shown in FIG. 5, between the material transfer unit TM and the distance measuring sensor 200 A portion of the material MT may be lifted by the lifting member 310 . Accordingly, the convex defective portion PL of the material MT or the portion of the material MT drooping down by its own weight does not collide with or catch on the stopper ST, etc., but through the charging port IC It can be smoothly charged into the heat treatment furnace (HF).

In this way, the convex defective portion PL of the material MT or the portion of the material MT drooping down by its own weight is smoothly charged into the heat treatment furnace HF through the charging port IC. After that, the control unit 400 may return the lifting member 310 to its original position by rotating the lifting member 310 by a predetermined angle in the other direction, for example, counterclockwise as shown in FIG. 6 .

Thereby, it is possible to minimize the occurrence of damage to equipment such as the material transfer unit (TM), defects in the material (MT), or a safety accident of the operator.

On the other hand, the charging port (IC) may be opened and closed by the charging door (DR) provided to be lifted in the heat treatment furnace (HF). For example, as shown in FIG. 1 , the charging door DR may be provided so as to be liftable in the heat treatment furnace HF above the charging port IC. In addition, in the heat treatment furnace (HF), the door driving unit 500 connected to the charging door (DR) to elevate the charging door (DR), and a plurality of opening/closing position measuring sensors for measuring the opening/closing position of the charging door (DR) (S1, S2, S3, S4, S5) may be provided. In addition, the control unit 400 may be connected to the door driving unit 500 and the plurality of opening/closing position measuring sensors S1 , S2 , S3 , S4 , and S5 . The door driving unit 500 rotates, for example, a wire 510 connected to the charging door DR, a pulley 520 around which the wire 510 is wound, and a pulley 520 , and a pulley rotating motor connected to the controller 400 . 530 may be included. However, the configuration of the door driving unit 500 is not particularly limited, and any known configuration is possible as long as it is connected to the charging door DR to elevate the charging door DR and connected to the control unit 400 .

The control unit 400 controls the door so that the distance LD from the distance measuring sensor 200 to the opening and closing position of the charging door DR is greater than the distance LM from the distance measuring sensor 200 to the material MT. The opening/closing position of the charging door DR may be adjusted through the driving unit 500 and the plurality of opening/closing position measuring sensors S1, S2, S3, S4, and S5.

If the distance (LM) from the distance measuring sensor 200 to the measured material (MT) is greater than or equal to the distance (LD) from the distance measuring sensor 200 to the opening/closing position of the charging door (DR), the material (MT) is the longest When it is charged into the heat treatment furnace HF through the inlet IC, it may hit or be caught in the charging door DR. For example, in the case of the defective shape portion PU convex above the material MT, the distance LM from the distance measurement sensor 200 to the shape defective portion PU convex above the material MT is the distance measurement sensor 200 . ) to the opening/closing position of the charging door (DR) may be greater than or equal to the distance (LD). In this case, the controller 400 determines that the distance LD from the distance measuring sensor 200 to the opening and closing position of the charging door DR is above the material MT from the distance measuring sensor 200 as shown in FIG. Opening and closing of the charging door DR through the door driving unit 500 and a plurality of opening/closing position measuring sensors S1, S2, S3, S4, S5 so as to be larger than the distance LM to the convex shape defective part PU position can be adjusted. That is, the control unit 400 may allow the charging door DR to rise to an open/close position in which the charging port IC is further opened. Accordingly, the defective shape PU convex above the material MT may be charged into the heat treatment furnace HF through the charging port IC without colliding with or being caught on the charging door DR.

In this way, after being charged into the heat treatment furnace (HF) through the charging port (IC) without colliding with or being caught in the charging door (DR), the convex defective portion PU of the material MT, the control unit 400 As shown in Figure 9, the charging door (DR) can be returned to the original opening and closing position.

Thereby, it is possible to minimize the occurrence of damage to equipment such as the material transfer unit (TM), defects in the material (MT), or a safety accident of the operator.

As described above, if the material charging induction device for the heat treatment furnace according to the present invention is used, as described above, according to the embodiment of the present invention, the material having a downward convex or upward convex shape defect is smoothly passed through the charging port. It can be charged inside the heat treatment furnace, and even when the material sags down due to its own weight during transport, it can be smoothly charged into the heat treatment furnace through the charging port, so that damage to equipment such as the material transfer unit or damage to the material or The occurrence of safety accidents for workers can be minimized.

In the device for inducing material loading into a heat treatment furnace described as described above, the configuration of the above-described embodiment is not limitedly applicable, but all or part of each embodiment is selectively combined so that various modifications can be made. may be configured.

100: material charging guide device to heat treatment furnace 200: distance measuring sensor
300: material lifting unit 310: lifting member
311: contact support roll 311a: shaft
320: rotation shaft 330: clamping unit
331: first clamping member 331a: first connection part
332: second clamping member 332a: second connection part
333: key member 340: rotation drive unit
341: universal joint 342: reducer
343: rotation drive motor 400: control unit
500: door drive unit 510: wire
520: pulley 530: pulley rotating motor
HF : Heat treatment furnace IC : Inlet
TM: Material transfer unit RT: Transfer roll
MT : Material RM : Material transport path
LM : Distance from the distance measuring sensor to the workpiece LL : Required lifting distance
LD : Distance from the distance measuring sensor to the opening/closing position of the charging door
DR : Charging door PL : Downward convex shape defect
PU : Upward convex defective part ST : Stopper
BR : Bearing BT : Bolt
NT : Nut SR Pivot Shaft
S1, S2, S3, S4, S5 : Open/close position measuring sensor
HS : Rotation support hole

Claims (10)

a distance measuring sensor disposed under the material transfer path between the material transfer unit for transferring the material to the charging port of the heat treatment furnace and the charging port to measure the distance to the material;
a material lifting unit provided between the material transfer unit and the distance measuring sensor and including an arcuate lifting member and configured to rotate the lifting member; and
a control unit connected to the material transfer unit, the distance measuring sensor, and the material lifting unit to control the material to be charged into the heat treatment furnace through the charging port; includes,
When the distance from the distance measuring sensor to the material measured by the distance measuring sensor is less than or equal to a preset lifting demand distance, the lifting member rotates a predetermined angle in one direction to lift a part of the material between the material transfer unit and the distance measuring sensor A device for inducing material loading into a heat treatment furnace. According to claim 1,
A material loading induction device for a heat treatment furnace that is rotatably provided with a contact support roll in contact with the material on one side of the lifting member. 3. The method of claim 2,
A device for inducing material loading into a heat treatment furnace in which rubber is coated on the contact support roll. 3. The method of claim 2,
The contact support roll is an elliptical-shaped material loading guide device into the heat treatment furnace. According to claim 1,
The material lifting unit includes a rotation shaft rotatably provided between the material transfer unit and the distance measuring sensor, a clamping unit connected to the lifting member on one side and the rotation shaft on the other side, and connected to the rotation shaft so that the rotation shaft is The material loading induction device to the heat treatment furnace further comprising a rotation driving unit connected to the control unit to rotate. 6. The method of claim 5,
The lifting member and the clamping unit are a plurality of material loading guide device into the heat treatment furnace. 6. The method of claim 5,
The clamping unit includes a first clamping member to which the lifting member is connected and surrounds a part of the rotation shaft, one side is pivotably connected to one side of the first clamping member and surrounds the rest of the rotation shaft, and the other side is the first clamping member A device for inducing material loading into a heat treatment furnace including a second clamping member detachably connected to the other side of the. According to claim 1,
The charging port is opened and closed by a charging door provided to be elevating in the heat treatment furnace,
The heat treatment furnace is provided with a door driving unit connected to the charging door so as to elevate the charging door, and a plurality of opening/closing position measuring sensors for measuring the opening/closing position of the charging door,
The control unit is a material loading induction device into the heat treatment furnace connected to the door driving unit and the plurality of opening and closing position measuring sensors. 9. The method of claim 8,
The control unit of the charging door through the door driving unit and the plurality of opening and closing position measuring sensors so that the distance from the distance measuring sensor to the opening and closing position of the charging door is greater than the distance to the material measured by the distance measuring sensor. A device for inducing material loading into a heat treatment furnace that controls the opening/closing position. The apparatus of claim 1, wherein the material is a steel sheet.

Images