KR20230093869A - Marking apparatus and marking method - Google Patents

Abstract

The marking device according to an embodiment of the present invention can spray a moving path capable of transporting cast slabs, a cooling medium for removing scale, and a paint for marking to cast slabs, and a marking machine installed on the upper side of the moving path, liquid material It may include a supply controller for controlling the supply of liquid water to the injector according to the positions of the injector and the marking device installed on the lower side of the moving path so as to be sprayed.
Therefore, according to the embodiments of the present invention, it is possible to prevent or reduce the amount of scattering of the scale removed from the cast piece into the air. Therefore, it is possible to prevent the marking device and its surroundings from being contaminated by the scale. Accordingly, it is possible to reduce the risk caused by contamination according to the scale, and to reduce the working time for cleaning the marking device and the scale around it.

Description

Marking device and marking method {MARKING APPARATUS AND MARKING METHOD}

The present invention relates to a marking device and a marking method, and more particularly, to a marking device and a marking method capable of preventing or suppressing scattering of scales that fall off from a cast piece.

When a cast steel is manufactured in a casting device, it is cut into a predetermined length. And the cast piece cut for marking of the identification symbol is transferred to a marking device. The marking device marks the identification symbol by spraying paint such as paint on the cast piece.

On the other hand, scale due to oxidation may be formed on the surface of the cast steel, and this scale reduces the adhesion of the paint and acts as a factor hindering the marking of identification symbols. Accordingly, marking is performed after removing the scale by spraying a cooling medium to the surface of the cast steel to be marked.

However, at this time, the scale removed from the cast piece is scattered, contaminating the marking device and its surroundings. In addition, the scale may be fixed to the marking device or its peripheral equipment. Therefore, there is a problem in that a worker periodically manually cleans the marking device and the scale accumulated or adhered to the marking device and its surroundings, and thus, work time and cost are periodically generated.

Korea Patent Registration 10-1322398

The present invention provides a marking device and a marking method capable of preventing or suppressing the scattering of scale that is dropped from a cast piece.

The present invention provides a marking device and a marking method capable of preventing or suppressing the scattering of scales removed from the cast steel during the process of removing scale from the surface of the cast steel prior to marking.

A marking device according to an embodiment of the present invention includes a moving path capable of transferring a cast piece; A marking machine capable of spraying a cooling medium for scale removal and a paint for marking onto the cast piece and installed on the upper side of the moving path; an injector installed on the lower side of the movement path to inject liquid water; And according to the location of the marking device, a supply controller for controlling the supply of liquid water to the injector; may include.

and a departure detector installed to detect whether or not the marking device is located at a preset standby position outside the movement path, and when it is detected that the marking device is located at the standby position, the supply controller supplies liquid water. is blocked, and when it is detected that the marking machine is out of the standby position, the supply controller can control the liquid water to be supplied to the injector.

The supply controller may include a supply pipe connected to the injector so as to supply liquid water to the injector; and a control valve installed in the supply pipe to operate according to a detection result of the departure detector and to control communication with the injector.

It may include an ejector formed extending in the extension direction of the movement path and installed at the lower side of the injector so as to receive the scale falling off from the cast piece.

On the movement path, a marking position that is a reference position of a cast steel for removing scale and marking is set in advance, and the ejector extends so that at least a part of the area faces the area between the marking position and the marking machine. .

The ejector extends so that one end and the other end, which are both ends in the extension direction, are relatively adjacent to the marking position and the other end is located far from the marking position, and the ejector has a height decreasing from one end to the other end. Can be installed inclined.

The injector may be installed to be adjacent to one end of the ejector compared to the other end.

The injector may be provided in plural and arranged in an extension direction of the ejector.

It may include a collecting member that can be installed on the lower side of the other end of the ejector so that the scale moved downward along the ejector can be charged.

a weight measuring device on which the collecting member can be seated and installed to measure the weight of the scale loaded into the collecting member; It may include; a monitor that generates an alarm when the weight of the scale measured by the weight measuring device exceeds a preset reference weight.

Marking method according to an embodiment of the present invention, by moving the cast piece, the process of positioning in a preset marking position; Step of removing the scale from the cast by spraying a cooling medium to the cast using a marking machine; Marking by spraying paint on a scale-removed cast steel using the marking machine; And while the marking machine is positioned to face the slab and sprays the cooling medium to the slab, the step of collecting the scale that falls off the cast slab by spraying the liquid to the lower side; may include.

In spraying the liquid, it can be sprayed at a lower position than the slab.

The process of spraying the liquid may include spraying the liquid prior to the process of removing the scale; The process of spraying a liquid material during the process of spraying the paint to the cast piece as the marking machine is positioned to face the cast piece; And spraying a liquid during the process of moving the marking machine to the outside of the cast after the marking process is finished; At least one of them may be further included.

The process of collecting the scale includes a step of dropping the scale dropped from the cast piece into an ejector installed to face the marking position, and in spraying the liquid, the liquid may be sprayed into the ejector.

The process of collecting the scale may include moving the liquid material injected into the ejector to a lower side of the ejector; pushing and moving the scale dropped onto the ejector by the movement of the liquid to a lower portion of the ejector; and charging the scale on the ejector to a collecting member disposed below the ejector.

measuring the weight of the scale loaded into the collecting member; and replacing the collecting member disposed below the discharger with a new collecting member when the measured weight of the scale is equal to or greater than a preset reference weight.

According to the embodiments of the present invention, it is possible to prevent or reduce the amount of scattering of the scale removed from the cast piece into the air. Therefore, it is possible to prevent the marking device and its surroundings from being contaminated by the scale. Accordingly, it is possible to reduce the risk caused by contamination according to the scale, and to reduce the working time for cleaning the marking device and the scale around it.

1 is a three-dimensional view showing a marking device according to an embodiment of the present invention.
2 is a side view showing a marking device according to an embodiment of the present invention.
3 is a plan view of a marking device according to an embodiment of the present invention viewed from above.
Figure 4 is a flow chart for explaining the operation of the marking device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments will complete the disclosure of the present invention, and will fully cover the scope of the invention to those skilled in the art. It is provided to inform you. In order to explain the embodiments of the present invention, the drawings may be exaggerated, and the same reference numerals in the drawings refer to the same components.

1 is a three-dimensional view showing a marking device according to an embodiment of the present invention. 2 is a side view showing a marking device according to an embodiment of the present invention. 3 is a plan view of a marking device according to an embodiment of the present invention viewed from above.

1 to 3, the marking device according to the embodiment of the present invention is a moving path (MP) capable of transporting the cast steel (S), the oxide scale (C) formed on the surface of the cast steel (S) After removal, the marking unit 1000 installed on the moving path (MP) so that the identification symbol can be marked, and the scale (C) that is dropped from the cast steel (S) during the operation of the marking unit (1000) can be collected It includes a collecting unit 2000 installed below the marking unit 1000 on the moving path MP.

The moving path MP may be provided by a plurality of rollers R installed in one direction, for example, arranged in a first direction (X-axis direction). Each of the plurality of rollers R may have a shape extending in a second direction (Y-axis direction) crossing or perpendicular to the first direction (X-axis direction).

Here, the movement path MP of the cast steel means a region or region in which a plurality of rollers R are arranged in a first direction (X-axis direction). Accordingly, the moving path MP of the cast piece is the length in the first direction (X-axis direction) in which the plurality of rollers R are arranged, the length in the second direction (Y-axis direction), which is the extension direction of each roller R, and this It can be described as having a predetermined area due to In addition, the length of the second direction (Y-axis direction) in the movement path MP of the cast steel is referred to as the 'width' of the movement path MP of the cast steel.

In addition, the positioning of the marking machine 1100 or the collecting unit 2000 on the movement path MP means that the plurality of rollers R arranged side by side in the first direction (X-axis direction) and each roller R It may mean that the area of the movement path MP defined by the length in the second direction (Y-axis direction) and the horizontal position are installed to overlap.

The slab (S) moving toward the marking device or the slab (S) marked using the marking device may be a slab obtained by solidifying molten steel and cutting a continuously cast slab into a predetermined length. Then, the cut slab (S) is seated on top of a plurality of rollers (R) arranged in one direction, as shown in FIGS. 1 and 2, and moves. That is, the cut slab (S) is moved to the marking device by a plurality of rollers (R), and then moved to the workshop for the subsequent process. Thus, the plurality of rollers (R) may be installed in a row to at least a cutting device, a marking device, and a workshop for subsequent processes after the marking.

Of the surface of the cast steel (S), the area for marking the identification symbol may be one end that reaches the marking unit 1000 first among one end and the other end, which are both ends in the moving direction (X-axis direction) of the cast steel (S). To explain this in other words, based on the first direction (X-axis direction) in which the cast steel (S) moves, the front direction of the cast steel (S) is defined as the front and the rear direction is defined as the rear. Accordingly, the surface of the cast steel (S) marking the identification symbol can be described as one end corresponding to the front of the cast steel moving direction, one end and the other end of both ends in the moving direction (X-axis direction) of the cast steel (S). Hereinafter, one end of the cast steel as described above is referred to as a head (h).

1 to 3, the marking unit 1000 may include a marking machine 1100 located on the upper side of the cast piece moving path MP and a guide part 1200 for moving the marking machine 1100 in the second direction. can In addition, the marking unit 1000 is installed on the outside of the cast steel movement path (MP) and senses the cast steel (S) to determine whether the cast steel (S) has reached the marking position (P _m ) Cast steel detector 1300 and movement of the cast steel It may include a departure detector 1400 for detecting whether or not the marking device 1100 is located in a preset standby position P _sb outside the second direction of the path MP.

The marking machine 1100 has a body 1110, a first nozzle 1120a installed on the body 1110 to inject a cooling medium into the head H of the cast steel S to remove the scale C, and the identification symbol of A moving block installed between the body 1110 and the guide part 1200 to slide along the second nozzle 1120b for spraying paint to the head H of the cast steel S for marking and the guide part 1200 (1140). In addition, the marking machine 1100 includes a nozzle transfer member (not shown) installed inside the body 1110 to move the second nozzle 1120b in a first direction (X-axis direction) and a second direction (Y-axis direction). can include

Hereinafter, one side is defined as the rear and the other side as the front around the guide part 1200 in the direction in which the cast steel (S) moves. At this time, the rear is defined as the direction in which the cast head H and the first and second nozzles 1120a and 1120b face each other, and the front is defined as the opposite direction.

The body 1110 is a component forming the exterior of the marking machine 1100, and may be mounted on the guide part 1200 to be positioned above the movement path MP or roller R, as shown in FIG. A cooling medium tank for supplying a cooling medium to the first nozzle 1120a and a paint tank for supplying a paint to the second nozzle 1120b may be mounted inside the body 1110. Here, the cooling medium sprayed through the first nozzle 1120a may be, for example, cooling water, and the paint sprayed through the second nozzle 1120b may be paint.

Each of the first and second nozzles 1120a and 1120b may be installed to extend rearward of the body 1110 such that one end is connected to the body 1110 and the other end faces the head H of the cast piece S. Here, one end of each of the first and second nozzles 1120a and 1120b is an inlet through which the cooling medium and paint flow into the inside, and the other end is an outlet through which the cooling medium and paint are discharged to the head H of the cast steel S. The first nozzle 1120a and the second nozzle 1120b may be arranged in a second direction (Y-axis direction).

The second nozzle 1120b moves by the operation of the nozzle transfer member, and according to the identification symbol to be marked, the second nozzle 1120b moves in a first direction (X-axis direction), a second direction (Y-axis direction), and a third direction (Z The paint may be sprayed while moving in at least one of the axial directions). The nozzle transfer unit may be, for example, a unit including rails extending in a first direction (X-axis direction), a second direction (Y-axis direction), and a third direction (Z-axis direction), respectively.

As shown in FIG. 1, the guide part 1200 extends in a second direction (Y-axis direction) crossing or orthogonal to the first direction (X-axis direction) in which a plurality of rollers R are arranged, so that the slab movement path (MP) It may include a guide member 1210 located on the upper side and a support member 1220 supporting the guide member 1210 .

The guide member 1210 is a means for moving the marking machine 1100 in a second direction (Y-axis direction) as shown in FIG. 3 while supporting the marking machine 1100. This guide member 1210 is formed so that a portion of the guide member 1210 faces the slab moving path (MP) in the second direction, and the remaining area is positioned outside the cast slab moving path (MP). That is, the guide member 1210 extends in the width direction of the slab movement path MP, and may extend to both outer sides of the cast slab movement path MP.

The guide member 1210 may include a rail extending in the second direction, and the moving block 1140 of the marking machine 1100 may be fastened to the rail so as to slide in the second direction. Accordingly, the entire marking machine 1100 may move horizontally in the second direction. That is, the marking machine 1100 may be positioned on the cast slab moving path MP as shown in FIG. 3 or moved to be located outside the cast slab moving path MP.

The support members 1220 may be provided as a pair, one of the pair of support members 1220 may be connected to one end of the guide member 1210, and the other may be connected to the other end of the guide member 1210. .

The cut slab (S) moves in the second direction (Y-axis direction) toward the marking unit 1000 while being seated on the roller (R). Then, when the head (H) of the cast steel (S) is moved close to the marking portion (1000), the operation of the roller (R) is stopped to stop the movement of the cast steel (S). Then, the cooling medium is sprayed to the head (H) of the cast steel (S) to remove the scale (C), and then the paint is sprayed to perform marking.

Hereinafter, the position of the slab head H, which sprays the cooling medium to the head H of the slab S and sprays the paint to perform marking, is referred to as 'marking position P _m ' (see FIG. 3). The marking position (P _m ) may be a point at the rear of the marking machine 1100 based on the second direction (Y-axis direction). In other words, the marking position (P _m ) may mean a position of a point spaced apart from the marking device 1100 by a predetermined distance. More specifically, the marking position P _m may be a position spaced apart from the other end of each of the first and second nozzles 1120a and 1120b of the marking machine 1100 by a predetermined distance. That is, when marking the head (H) of the cast steel (S), the scale (C) formed on the head (H) can be removed by spraying the cooling medium using the first nozzle (1120a), and the second nozzle The position of a point spaced apart by a predetermined distance from the first and second nozzles 1120a and 1120b to the rear may be set as the marking position (P _m ) so that identification symbols can be marked by spraying paint using (1120b).

The slab detector 1300 may be installed to be located outside the second direction (Y-axis direction) of the slab movement path MP, as shown in FIGS. 1 and 3. In addition, the slab detector 1300 may be installed to be located at the rear of the guide unit 1200 in the first direction (X-axis direction).

The cast steel detector 1300 may include, for example, a light emitting means for emitting light toward the cast steel moving path MP and a light receiving means for receiving the reflected light. In addition, the cast detector 1300 may be installed so that light can be irradiated to a preset marking position (P _m ). Thus, when the head (H) of the cast piece (S) reaches the marking position (P _m ), the light emitted from the light emitting means of the cast piece detector 1300 corresponds to the marking position (P _m ) as shown in FIGS. 1 and 2 It can be irradiated to the side of the cast steel (S) to be. And the light reflected from the side of the cast piece (S) can be received by the light receiving means. At this time, the cast piece detector 1300 may detect whether or not the cast piece S has reached the marking position P _m by using a signal in which the radiated light is received again.

The guide unit 1200 may be operated by a signal generated from the cast steel detector 1300 as described above. That is, when a signal is generated from the cast steel detector 1300 that the cast steel has reached the marking position (P _m ), the guide unit 1200 faces the head H of the cast steel on the moving path MP of the marking machine 1100. move so you can see In more detail, the marking machine 1100 is positioned on the casting moving path MP, so that the cooling medium and paint discharged from the marking machine 1100 can be sprayed to the casting head H, the guide unit 1200 Adjusts the position of the marking machine 1100 in the second direction (Y-axis direction).

Hereinafter, the position in the second direction (Y-axis direction) of the marking machine 1100 capable of injecting the cooling medium and the paint into the cast steel (S) that has reached the marking position (P _m ) is referred to as the 'process position (P _p )'. name it Here, the process position P _p may be a position set on the movement path MP. In addition, the process position (P _p ) may be a position set in front of the marking position (P _m ) based on the first direction (X-axis direction). Further, the process position P _p may be a position having a width in at least the second direction (Y-axis direction). In other words, the process position (P _p ) may be a range value of a position in at least the second direction (Y-axis direction). Of course, the process position (P _p ) may be a position having a predetermined width in each of the first direction (X-axis direction) and the second direction (Y-axis direction), and thus the process position (P _p ) is the first and second directions Positions in each of the two directions may be range values.

In addition, while the signal that the cast steel (S) has not reached the marking position (P _m ) is generated from the cast steel detector 1300, the guide unit 1200 waits for the marking machine 1100 to be preset outside the moving path (MP). position (P _sb ). As described above, since the standby position (P _sb ) is a position set outside the movement path (MP), the standby position (P _sb ) is a process position (P _p ) and a position in the second direction (Y-axis direction) It is different. In this case, the position of the standby position P _sb in the first direction (X-axis direction) may be the same as the process position Pp.

The departure detector 1400 is located outside the second direction (Y-axis direction) of the cast piece movement path MP, that is, at the standby position (P _sb ) The marking machine 1100, which was located at the standby position (P _sb ) for the marking process It is a means of detecting whether or not it has departed from The separation detector 1400 may be installed on the support member 1220 so as to be located outside the second direction of the cast moving path MP, as shown in FIGS. 1 and 3.

The separation detector 1400 may include, for example, a touch sensor. When the separation detector 1400 is applied by the contact of the marking device 1100, the marking device 1100 may generate a signal that is located or waiting at the standby position (P _sb ). Conversely, the marking machine 1100 starts to move from the standby position (P _sb ) to the cast moving path (MP), and when the pressing force is released as the marking machine 1100 is separated from the separation detector 1400, the separation detector 1400 Is the marking machine 1100 may generate a signal (hereinafter, a standby position departure signal) that has been separated from the standby position (P _sb ). In this way, the marking device 1100 and the collecting unit 2000 to be described below may be operated by the standby position departure signal generated by the departure detector 1400 .

The collecting unit 2000 collects foreign substances or dust such as particles generated while the marking machine 1100 sprays a cooling medium to the head H of the cast piece S to remove the scale C. That is, the collecting unit 2000 is the scale (C) to prevent or suppress the scattering of the scale (C) that is eliminated from the cast head (H) by the cooling medium injected into the head (H) of the cast steel (S) capture

The collecting unit 2000 is a marking unit 1000 and an ejector 2300 installed on the lower side of the cast moving path (MP) to receive the scale (C) that is dropped from the cast head (H) and the ejector (2300) ) Liquid water (L) to the injector 2100 according to the location of the injector 2100 and the marking machine 1100 installed between the cast moving path (MP) and the ejector 2300 so that the liquid water (L) can be sprayed or sprayed. ) may include a supply controller 2200 for controlling supply.

In addition, the collecting unit 2000 includes the collecting member 2400 disposed on the lower side of the ejector 2300 and the inside of the collecting member 2400 so that the scale C that falls onto the ejector 2300 and moves downward can be taken down. In order to measure the weight of the scale (C) loaded into the weight measuring device 2600 installed on the lower side of the discharger 2300 and the weight of the scale (C) measured in the weight measuring device 2600 is greater than the preset reference weight, an alarm It may include a monitor 2700 that generates. In addition, the collecting unit 2000 may further include a support 2400 supporting the collecting member 2400 .

The discharger 2300 is a means for receiving the scale (C) that is dropped from the cast head (H) when spraying the cooling medium using the marking machine (1100) and guiding it to the collecting member (2400), for example, a chute (chute) ) can be. The ejector 2300 is installed on the lower side of the roller R as shown in FIGS. 1 and 2, and as shown in FIG. 3, at least some area faces the area between the marking position P _m and the marking machine 1100. It is installed to extend in the first direction (X-axis direction). More specifically, the ejector 2300 has at least a part of the area facing the area between the head H of the cast steel S having reached the marking position P _m and the other end of the first nozzle 1120a in the first direction. It is installed extending to

To this end, the ejector 2300, for example, as shown in FIGS. 2 and 3, one end is located at the rear of the marking position (P _m ), and the other end is installed so as to be located in front of the one end and the marking unit 1000. It can be. At this time, the extension length of the ejector 2300 in the first direction is not particularly limited, but it is preferable that the other end be provided with a length that can be located in front of the marking machine 1100. In addition, the width of the ejector 2300 is preferably provided at least wider than or equal to that of the slab (S), and more preferably provided wider than that of the roller (R).

As described above, the ejector 2300 has one end positioned at the rear of the marking position P _m and the other end extending to be positioned at the front of the marking device 1100 . This is because one end of the ejector 2300 is located behind the marking position P _m by increasing the area of the ejector 2300 facing the empty space between the marking position P _m and the marking machine 1100, so that the scale ( C) This is to reduce the amount that falls out of the ejector 2300 and increase the amount that falls onto the ejector 2300.

However, it is not limited thereto, and the ejector 2300 has one end positioned at the marking position P _m and the other end positioned in front of the marking machine 1100.

In addition, in the foregoing, in extending the ejector 2300 in the first direction, it has been described that it extends from the marking position P _m to the front of the marking device 1100. However, the ejector 2300 is not limited thereto, and one end of the ejector 2300 is located in front of the marking position P _m or the marking position P _m , and the other end is installed to extend to be located behind the one end and the marking machine 1100. can

In addition, the ejector 2300 may be installed inclined so as to gradually decrease in height from one end to the other end, as shown in FIGS. 1 and 2 . That is, the ejector 2300 is inclined so that its upper surface toward the plurality of rollers R or cast moving path MP is not perpendicular or parallel to the ground or the floor of the workplace where marking is performed, and has a predetermined inclination. can be provided.

Such an ejector 2300 can be moved downward by receiving the scale that is detached from the casting head (H) at the marking position (P _m ). That is, when the cooling medium is sprayed to the slab head (H) using the first nozzle (1120a) of the marking machine 1100, the scale (C) is removed from the slab head (H). And, the dropped scale (C) may fall downward by its gravity. At this time, since the ejector 2300 is installed facing the lower side of the space between the head H of the cast steel S and the first nozzle 1120a of the marking machine 1100, the scale C is of the ejector 2300. It can fall to the top surface. The scale C dropped into the ejector 2300 may move in a direction in which the ejector 2300 is inclined, that is, downward.

In the above, it has been described that the entire ejector 2300 is installed inclined. However, the entire ejector 2300 is not inclined, and the upper surface of the ejector 2300 facing the marking unit 1000 or the cast moving path MP may be inclined so that the height decreases toward the lower side.

The injector 2100 sprays a liquid jet (hereinafter referred to as liquid water L) toward the ejector 2300 to prevent or suppress scale from scattering, that is, sprinkle water. To this end, the injector 2100 may be installed to be positioned between the roller R and the ejector 2300 so as to face the ejector 2300. That is, the sprayer 2100 may be installed so as to face the upper surface of the ejector 2300 facing the roller R or the marking machine 1100 . At this time, the injector 2100 is preferably arranged to face the upper area of the upper surface of the ejector 2300. That is, the injector 2100 is preferably installed at a position adjacent to one end of the ejector 2300 compared to the other end. This is because one end is closer to the cast steel (S) or the marking machine 1100 than the other end of the ejector 2300, and when the liquid material (L) is sprayed at a position adjacent to the one end, the scale falling from the marking position (P _m ) ( This is because it is easy to guide the moving direction or falling direction of C) to the ejector 2300.

The injector 2100 is located between the roller R and the ejector 2300 and connects a plurality of injection nozzles 2110 and a plurality of injection nozzles 2110 for injecting the liquid L toward the ejector, and a connecting pipe ( 2120) may be included.

Hereinafter, 'water' will be described as the liquid (L) injected from the injector 2100 toward the ejector 2300 as an example. However, the liquid material L is not limited to water, and various liquid materials may be applied.

A plurality of injection nozzles 2110 may be arranged in a width direction of the ejector 2300, that is, in a second direction (Y-axis direction) as shown in FIG. Accordingly, the connection pipe 2120 may be provided to extend in the direction in which the plurality of injection nozzles 2110 are arranged, that is, in the second direction (Y-axis direction), as shown in FIGS. 1 and 3 .

The liquid L, that is, water sprayed from the injector 2100 may prevent or suppress the scattering of the scale C and induce the scale C to fall onto the ejector 2300. That is, the scale (C) that is dropped from the casting head (H) and falls downward meets the water sprayed from the injector (2100), and its weight becomes heavy. As the weight of the scale C increases, it becomes easier for the scale C to fall downward. Accordingly, the scale C, which has met water or whose weight has been increased by water, may fall downward and be seated on the ejector 2300. In addition, the water falling toward the ejector 2300 or the falling force may be transmitted to the scale C on the water spraying path. Accordingly, the scale C is more easily dropped into the ejector 2300 by the force of the water falling downward. Therefore, it is possible to reduce the amount of scale (C) dropped from the cast head (H) scattering into the air without heading toward the ejector (2300), and increase the amount falling onto the ejector (2300).

In addition, when the injector 2100 is installed to be adjacent to one end of the ejector 2300 compared to the other end, the amount of scale (C) falling out of the ejector 2300 is reduced compared to other cases and onto the ejector 2300. The amount of falling can be increased. This induces the scale (C) to fall into the ejector 2300 without moving to the outside of the ejector 2300 by spraying water at a position adjacent to one end of the ejector 2300, which is the initial area where the scale C falls. It may be because it is easy to do.

Also, since the ejector 2300 is inclined, the water sprayed from the injector 2100 and dropped into the ejector 2300 moves downward along the ejector 2300 . The water moving downward on the ejector 2300 pushes the scale C loaded on the ejector 2300. That is, the scale C dropped onto the ejector 2300 is pushed to the lower side of the ejector 2300 by the force of the water moving downward. Then, the scale C is dropped out of the other end of the ejector 2300, and the scale C is dropped into the collecting member 2400 disposed below the ejector 2300. In summary, by installing the ejector 2300 at an angle and spraying water through the ejector 2300, the scale C dropped onto the ejector 2300 can be charged into the collecting member 2400. In other words, the scale dropped by the discharger 2300 may be moved to the collecting member 2400 and collected.

In the above, it has been described that one injector 2100 is provided. However, it is not limited thereto, and a plurality of injectors 2100 may be provided. In addition, the plurality of injectors 2100 may be installed between the roller R and the ejector 2300 to be aligned in the extending direction of the ejector 2300.

The supply controller 2200 is a means for supplying liquid water L, that is, water, to the connection pipe 2120 of the injector 2100. The supply controller 2200 may include a control valve 2210 for controlling water supply to the connection pipe 2120 of the injector 2100. In addition, the supply controller 2200 may include a supply pipe 2220 connected to the connection pipe 2120 of the injector 2100. At this time, the control valve 2210 may be installed in the supply pipe 2220 to adjust communication with the connection pipe 2120.

The control valve 2210 controls whether liquid water is supplied to the injector 2100 according to the position of the marking device 1100 . That is, the control valve 2210 is at least the marking machine 1100 is located at the process position (P _p ) While the marking machine 1100 sprays the cooling medium to the cast piece (S) to remove the scale (C), the injector (2100) ) It is possible to supply the liquid (L) to the injector 2100 so that the liquid (L) is sprayed. In addition, the control valve 2210 is at least the marking machine 1100 is located in the stand-by position (P _sb ) When the liquid (L) is not sprayed from the injector 2100 when the liquid (L) supply can be blocked there is. In addition, the control valve 2210 moves the marking machine 1100 in the second direction (Y-axis direction) on the moving path MP and moves out of the process position P _p and when the marking machine 1100 moves in the moving path MP ) And the standby position (P _sb ) In at least one of the cases in the case of the interval between, it is also possible to supply the liquid (L) to the injector 2100 so that the liquid (L) is injected from the injector 2100.

As a more specific example, when the marking device 1100 is in the standby position (P _sb ), the marking device 1100 may be in contact with or pressing the separation detector 1400 . In this case, the separation detector 1400 generates a signal that the marking device 1100 is in a standby or stopped state at the standby position P _sb , which is transmitted to the control valve 2210. At this time, the control valve 2210 may be closed so that water is not sprayed from the spray nozzle 2110 to the ejector 2300 or water is not supplied to the spray nozzle 2110 .

Then, when the marking machine 1100 starts to move toward the cast piece moving path MP, the marking machine 1100 is separated from the separation detector 1400, and thus, the pressing force applied to the separation detector 1400 is released. At this time, the separation detector 1400 may generate a signal (hereinafter, a standby position departure signal) that the marking device 1100 is not located in the standby position (P _sb ), which is transmitted to the control valve 2210. At this time, the control valve 2210 may be opened so that water may be injected from the spray nozzle 2110 to the ejector 2300 or water may be supplied to the spray nozzle 2110 .

In addition, the marking machine 1100 is located at the process position (P _p ) and sprays the cooling medium and paint to the cast head (H) to remove the scale and perform marking while and after the marking is finished Standby position (P _sb ) Even while moving to the side, the departure detector 1400 continues to generate a standby position departure signal. Accordingly, the control valve 2210 may be opened so that water may be injected from the injection nozzle 2110 to the discharger 2300 .

In the above, the case where the control valve 2210 operates so that water is injected from the injector 2100 in other cases except for the case where the marking machine 1100 is located at the standby position (P _sb ) has been described. However, the control valve 2210 may be operated so that water is sprayed from the spray nozzle 2110 to the discharger 2300 only while the marking machine 1100 sprays the cooling medium for scale removal.

To this end, the control valve 2210 may be opened so that water may be injected from the injection nozzle 2110 to the discharger 2300 after a first reference time from the time when the departure signal from the standby position is generated by the departure detector 1400. . Here, the first reference time may be determined according to the time taken from when the stand-by position departure signal is generated until the marking machine 1100 reaches the cast piece movement path MP. Also, the control valve 2210 may be operated to spray water from the spray nozzle from the time point at which the cooling medium starts to be sprayed from the first nozzle 1120a until the second reference time is reached or elapsed. At this time, the second reference time may be determined by the time until the scale of the casting head is sufficiently removed so that marking is possible. This second reference time may be determined by the operator's experience.

In the above, it has been described that the control valve 2210 is operated so that water is sprayed from the spray nozzle 2110 to the discharger 2300 after the first reference time from the time when the departure signal from the standby position is generated by the departure detector 1400. However, the control valve 2210 may be operated by a sensor capable of detecting the position of the marking device 1100 in real time, for example, a distance sensor, without being limited thereto. For example, a distance sensor may be installed outside the movement path MP, and the distance sensor may measure the position of the marking machine 1100 in the second direction or the separation distance from the separation detector 1400. Also, when the distance sensor detects that the marking machine 1100 has reached the process position P _p , the control valve 2210 may be opened so that water may be sprayed from the injection nozzle 2110 .

The collecting member 2400 may be a means to contain the scale C that has fallen into the ejector 2300 and has moved downward along the ejector 2300 . The collecting member 2400 has an internal space capable of containing scale, and may be, for example, a bag. When a certain amount of scale is contained in the collecting member 2400, the collecting member 2400 needs to be replaced. That is, the collecting member 2400 should be moved to the outside of the ejector 2300 using a collecting device, for example, a crane, and loaded in a yard, for example, and a new collecting member 2400 should be placed below the ejector 2300. . To this end, the collection member 2400 may be provided with a hook 2410 that can be caught on the hook of a crane, which is a collection device.

The support 2400 is a means for supporting the collecting member 2400, and may be fixedly installed on the lower side of the ejector 2300. For example, the support 2400 may have an inner space 2510 in which the collecting member 2400 can be accommodated, and may have a box shape including a plurality of frames 2520 surrounding the inner space 2510.

In addition, the support 2400 may include a hook 2530 mounted on the frame 2520 so that the hook 2410 of the collecting member 2400 can be hung. For example, the hanger 2530 may be mounted on the frame 2520 disposed thereon, and may be provided to extend outward from the frame 2520. At this time, the hanger 2530 may be provided in a shape bent at least once.

The weight measuring device 2600 is a means for measuring the weight of the scale C loaded into the collecting member 2400, and may be installed below the ejector 2300 so that the collecting member 2400 can be seated thereon. . For example, when the collecting member 2400 is installed inside the support 2400, the weight measuring device 2600 may be installed on the floor inside the support 2400. This weight measuring device 2600 may be a means including a load cell. Of course, the weight measuring device 2600 is not limited to the above example, and various means capable of measuring the weight of the scale C may be applied.

The monitoring device 2700 receives the weight of the scale measured by the weight measuring device 2600 in real time, and generates an alarm when the weight of the scale C exceeds a preset standard weight. When an alarm is generated, the operator moves the collecting member 2400 by operating a collecting device, for example, a crane. That is, the hook of the collecting member is hung on the hook of the crane, and the entire crane or the hook is moved to load the collecting member 2400 on, for example, a yard. Then, a new collecting member 2400, that is, an empty collecting member 2400 is disposed below the ejector 2300 again.

In addition, when an alarm is generated in the monitoring device 2700, the operation of the marking device 1100 may be stopped. That is, when an alarm occurs while the scale (C) is being removed by spraying the cooling medium from the first nozzle (1120a) of the marking machine (1100) to the casting head (H), the cooling medium in the first nozzle (1120a) The operation of the marking machine 1100 may be stopped so that injection is stopped. This is to prevent the scale C from being further loaded into the collecting member 2400 that has reached the standard weight. Also, when an alarm is generated in the monitor 2700, the control valve 2210 may be closed to stop spraying water from the injector 2100. This is to prevent or suppress the scale C dropped onto the ejector 2300 from moving downward and falling to the collecting member 2400 .

Figure 4 is a flow chart for explaining the operation of the marking device according to an embodiment of the present invention. Hereinafter, with reference to Figures 1 to 4, the operation of the marking device according to an embodiment of the present invention will be described. At this time, the content overlapping with the previously described content may be omitted or briefly described.

The slab (S) cut by the cutting device moves in a first direction (X-axis direction) while being seated on top of a plurality of rollers (R). That is, the cut slab (S) is moved toward the marking device by a plurality of rollers (R).

The slab detector 1300 detects whether the surface of the slab to be marked, for example, the slab head (H) has reached the marking position (P _m ) (S100). At this time, when the light emitted from the light emitting part of the cast piece detector 1300 is irradiated to the cast piece S and then reflected and incident to the light receiving unit, the cast piece detector 1300 arrives at the marking position P _m of the cast head H. or judged to have been reached (yes).

When it is determined that the slab head (H) has reached the marking position by the slab detector 1300 (Yes), the guide unit 1200 is positioned at the standby position (P _sb ) or the marking machine 1100 that was on standby is moved to the process position (P _p ) It moves toward (S200). At this time, the marking machine 1100 maintains a state in contact with the separation detector 1400 at the standby position (P _sb ), and when the marking machine 1100 starts to move toward the process position (P _p ), the marking machine 1100 It is separated from the departure detector 1400. Accordingly, a standby position departure signal is generated from the departure detector 1400 . When the stand-by position deviation signal is generated in this way, the spraying of the cooling medium is started using the first nozzle 1120a of the marking machine 1100 (S311). In other words, the marking machine 1100 starts spraying the cooling medium using the first nozzle 1120a from the time when the stand-by position departure signal is generated.

The cooling medium discharged from the first nozzle 1120a of the marking machine 1100 that has reached the process position P _p is injected into the slab head H that has reached the marking position P _m . As a result, the scale C formed on the cast head H is eliminated. And the dropped scale may fall downward by its gravity. Thereafter, when a predetermined time elapses from the point at which the cooling medium is started to be sprayed from the first nozzle 1120a of the marking machine 1100, the cooling medium spray is terminated (S312).

Next, by using the second nozzle (1120b) to spray the paint to the casting head (H) to mark the identification symbol (S313). At this time, the second nozzle 1120b moves in the first direction (X-axis direction), the second direction (Y-axis direction), and the third direction (Z The paint may be sprayed while moving in at least one of the axial directions). Accordingly, an identification symbol may be marked on the head (H) of the cast steel (S).

Then, when the marking of the identification symbol on the slab head (H) is finished, the guide unit 1200 moves the marking machine 1100 toward the standby position (P _sb ) (S314).

In this way, while removing the scale (C) of the cast head (H) using the marking machine (1100) and marking the identification symbol, the injector (2100) moves the liquid (L) toward the ejector (2300), for example, water to inject More specifically, the separation detector 1400 detects whether the marking device 1100 is separated from the standby position (P _sb ) (S321). While the marking device 1100 maintains a state in contact with the separation detector 1400 at the standby position (P _sb ), the marking device 1100 starts to move toward the process position (P _p ) and waits at the separation detector 1400 A position departure signal is generated. At this time, the control valve 2210 may be opened so that water starts to be sprayed from the spray nozzle 2110 to the discharger 2300 (S221) (S322). Thus, the marking machine 1100 is separated from the standby position (P _sb ) and starts moving toward the process position (P _p ) From the point of time when the injector 2100 starts to spray the liquid (L).

And, while the marking machine 1100 is moving toward the process position (P _p ), the marking machine 1100 reaches the process position (P _p ) and sprays the cooling medium and the paint, and after the marking is finished, the marking machine 1100 While moving toward the standby position (P _sb ), the control valve 2210 may be opened so that water may be injected from the injection nozzle 2110 to the discharger 2300 .

When the marking is finished as described above, the guide unit 1200 moves the marking device 1100 toward the standby position P _sb (S314). Then, the separation detector 1400 detects whether the marking machine 1100 is located in the standby position (P _sb ) in real time. At this time, when the marking device 1100 moving toward the standby position (P _sb ) arrives at the standby position (P _sb ), the marking device 1100 is in contact with the separation detector 1400 . Accordingly, the separation detector 1400 generates a signal that the marking device 1100 is located at the standby position P _sb . At this time, the control valve 2210 may be closed so that the cooling medium is not sprayed from the injection nozzle 2110 (S323).

In this way, the liquid (L) injected from the injection nozzle 2110 to the ejector 2300, that is, the scale (C) removed from the cast head (H) by water is not scattered outside the ejector 2300 and the ejector ( 2300) can increase the amount of falling onto the statue. That is, by inducing the scale (C) dropped from the casting head (H) to be loaded on the ejector 2300, it is possible to prevent or suppress the scattering of the scale (C).

Then, the scale dropped onto the ejector 2300 is moved downward by the slope of the ejector 2300 and the water flowing along the ejector 2300, and is charged into the collecting member 2400 located outside the ejector 2300. . In other words, the scale C dropped onto the ejector 2300 may be collected by the collecting member 2400 .

In addition, the weight of the scale (C) charged into the collecting member 2400 is measured in real time through a weighing device 2600 disposed under the collecting member 2400 and transmitted to the monitoring device 2700. .

In this way, the process of marking an identification symbol on the cast steel head (H) using the marking machine 1100 may be performed each time a plurality of cast steels sequentially arrive at the marking position (P _m ). Accordingly, the weight of the scale loaded into the collecting member 2400 may increase over time. The monitoring device 2700 receives the weight of the scale C measured by the weight measuring device 2600 in real time, and generates an alarm when the measured weight of the scale C exceeds the standard weight. When an alarm is generated, the operator moves the collecting member 2400 by operating a collecting device, for example, a crane. That is, the hook 2410 of the collecting member 2400 is hung on the hook of a crane, and the entire crane or the hook is moved to load the collecting member 2400 on, for example, a yard. Then, a new collecting member 2400, that is, an empty collecting member 2400 is disposed below the ejector 2300 again.

In addition, if the cooling medium is being sprayed from the first nozzle 1120a of the marking machine 1100 when the alarm is generated, it is preferable to stop spraying the cooling medium from the first nozzle 1120a. Then, it is preferable to close the control valve 2210 so that the injection of the liquid material (L) from the injector 2100 is stopped.

In this way, according to the embodiments of the present invention, while removing the scale (C) of the cast steel (S) using the marking machine 1100 before marking, spray the liquid (L) to the lower side of the marking machine 1100 do. In addition, the ejector 2300 is disposed below the marking machine 1100, and the liquid material L is injected into the ejector. Therefore, it is possible to reduce the amount of scale (C) dropped from the cast head (H) scattering into the air without heading toward the ejector (2300), and increase the amount falling onto the ejector (2300).

In addition, the scale C dropped onto the ejector 2300 can be easily moved downward by the slope of the ejector 2300 and the liquid L flowing along the ejector 2300. It can be easily loaded into the collecting member 2400 located on the lower side. That is, the liquid that has fallen onto the ejector 2300 can be easily collected by the collecting member 2400 .

Then, the weight of the collecting member 2400 is measured in real time, and the collecting member 2400 is replaced when the measured weight is equal to or greater than the standard weight. Therefore, it is possible to prevent the scale C from being contaminated by overflowing the outside of the collecting member 2400, which has the advantage of not requiring a separate cleaning operation.

R: roller 1000: marking part
1100: marking machine 1110: body
1120a: first nozzle 1200: guide unit
1400: departure detector 2000: collecting unit
2100: sprayer 2110: spray nozzle
2200: supply controller 2210: control valve
2300: discharger 2400: collecting member
2600: weight measuring device 2700: monitoring device
P _m : marking position L: liquid
MP: movement path of cast steel P _p : process location
P _sb : standby position

Claims (16)

A movement path capable of transporting cast pieces;
A marking machine capable of spraying a cooling medium for scale removal and a paint for marking onto the cast piece and installed on the upper side of the movement path;
an injector installed on the lower side of the movement path to inject liquid water; and
Marking device comprising a; supply controller for controlling the supply of liquid water to the injector according to the position of the marking device. The method of claim 1,
And a departure detector installed to detect whether the marking device is located at a preset standby position in an area outside the movement path,
When it is detected that the marking machine is located in the standby position, the supply controller controls the supply of liquid water to be cut off,
When it is detected that the marking device is out of the standby position, the supply controller controls the supply of liquid water to the injector. The method of claim 2,
The supply controller,
a supply pipe connected to the injector to supply liquid water to the injector; and
Marking device comprising a; control valve installed in the supply pipe to operate according to a detection result of the separation detector and to control communication with the injector. The method according to any one of claims 1 to 3,
Marking device including an ejector formed extending in the extension direction of the movement path and installed below the injector so as to receive scale falling off from the cast piece. The method of claim 4,
On the moving path, a marking position that becomes a reference position of a cast steel for removing scale and marking is set in advance,
The ejector is a marking device formed so that at least a portion of the area faces the area between the marking position and the marking machine. The method of claim 5,
The ejector extends so that one end and the other end, which are both ends in the extending direction, are located relatively adjacent to the marking position and the other end is located far from the marking position,
The ejector is a marking device installed inclined so that its height decreases from one end to the other end. The method of claim 6,
The injector is a marking device installed so as to be adjacent to one end compared to the other end of the ejector. The method of claim 4,
The injector is provided in plurality and arranged in an extension direction of the ejector marking device. The method of claim 6,
Marking device comprising a collecting member that can be installed on the lower side of the other end of the ejector so that the scale moved downward along the ejector can be charged. The method of claim 9,
a weight measuring device on which the collecting member can be seated and installed to measure the weight of the scale loaded into the collecting member;
Marking device comprising a; monitor for generating an alarm when the weight of the scale measured by the weight measuring device is more than a preset reference weight. The process of moving the cast piece and positioning it at a preset marking position;
Step of removing the scale from the cast by spraying a cooling medium to the cast using a marking machine;
Marking by spraying paint on a scale-removed cast steel using the marking machine; and
While the marking machine is positioned to face the cast member and sprays the cooling medium into the cast member, the process of collecting the scale that falls off the cast member by injecting liquid water downwards; Marking method comprising a. The method of claim 11,
A marking method for spraying the liquid at a lower position than the cast piece. The method of claim 11,
The process of spraying the liquid,
spraying liquid before the scale removal process;
The process of spraying a liquid material during the process of spraying the paint to the cast piece as the marking machine is positioned to face the cast piece; and
Spraying a liquid during the process of moving the marking machine to the outside of the cast after the marking process is finished; A marking method further comprising at least one of. The method of claim 11,
The process of collecting the scale,
Including the step of dropping the scale dropped from the cast piece into an ejector installed to face the marking position,
In spraying the liquid material, a marking method for spraying the liquid material into the ejector. The method of claim 14,
The process of collecting the scale,
moving the liquid material injected into the ejector to a lower side of the ejector;
pushing and moving the scale dropped onto the ejector by the movement of the liquid to a lower portion of the ejector; and
Marking method comprising the; step of charging the scale on the ejector to the collecting member disposed on the lower side of the ejector. The method of claim 15
measuring the weight of the scale loaded into the collecting member; and
When the measured weight of the scale is equal to or greater than the preset standard weight, replacing the collecting member disposed below the ejector with a new collecting member; Marking method comprising the.

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