KR20140036521A - Auto printing apparatus for moving object and marking method thereof - Google Patents

Abstract

The present invention relates to an automatic marking apparatus for a moving object and a marking method thereof. According to the present invention, required information is marked on a surface of a moving object (20) which moves, by a conveyer (10), in one direction. A printer-head (36) marks the required information on the surface of the moving object (20) while the moving object (20) moves. Particularly, the automatic marking apparatus for a moving object performs a marking process all the time when the printer-head (36) moves in the widthwise direction of one side and of the other side of the moving object (20). Thereby, marking time or the number of printer-heads (38) used is minimized.

Description

Automatic marking apparatus for moving objects and marking method thereof

The present invention relates to an automatic marking apparatus for a moving object and a marking method thereof, and more particularly, to an automatic marking apparatus for a moving object and to continuously perform marking while the print head is inclined to the left and right in the width direction of the moving object. It relates to a marking method.

Due to the development of the industry, various technologies have been required, and in particular, the information required in the production process is displayed on the object to facilitate the production process more smoothly. For example, the shipbuilding industry uses a lot of iron plate, it is necessary to display a variety of information on the iron plate in relation to the use of the iron plate in the ship making process.

Previously, in order to display information on the iron plate, the iron plate was stopped, and the print head moved on the iron plate to display the necessary contents. However, using this method, there is a problem in that the entire process is slowed down since the marking work is performed while the steel plate is stopped.

Thus, a system has been developed for marking the necessary information while the printhead follows the iron plate while the iron plate is moving. This is a printer device disclosed in the following prior art document, in which the print head is marked on the surface of the moving iron plate while inclined in the width direction of the iron plate.

However, in such a prior art, the inclination direction in which the print head is moved is fixed, so that marking is possible only once the print head goes to one end of the steel plate in the width direction, and marking is impossible when the print head moves in the opposite direction. It is determined that the inclination value of the moving direction of the print head is determined according to the moving speed of the iron plate. When the print head returns to its original position, the inclination direction is completely reversed, and when the letters are displayed on the iron plate, the inclination value is displayed in the width direction of the iron plate. This is because the letters are almost displayed in the moving direction of the iron plate.

Therefore, in the related art, information has only to be displayed while the print head moves with an inclination value in the width direction of the iron plate, and when the printer head is returned, no work is performed. Therefore, in order to continuously mark the iron plate, the iron plate had to be temporarily stopped or the print head had to be moved at a very high speed. However, if the steel plate is stopped, it takes a lot of work time, and if the print head is moved at a high speed, the structure related to the movement of the print head becomes expensive or receives a lot of load.

Republic of Korea Patent Publication 10-2010-0038924

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above, and to allow the print head to perform marking in both the horizontal and horizontal movements of the moving object while the moving object moves continuously.

According to a feature of the present invention for achieving the above object, the present invention is an automatic marking device for a moving object to perform the marking on the surface of the moving object, the head frame is located on the top of the moving object, and A print head moving along the head frame to perform marking on the moving object, a first vertical frame rotatably supporting one end of the head frame, and rotatably supporting the other end of the head frame. And a second vertical frame capable of linear reciprocating motion with respect to a moving direction, wherein the second vertical frame is moved by a predetermined distance between the front and rear moving directions of the moving object with respect to the first vertical frame. The rotation is about the first vertical frame.

First and second rotation center axes are respectively installed in the first and second vertical frames, and the first and second rotation center axes penetrate both ends of the head frame, respectively. One of the parts of the headframe through which the shaft passes is a long hole.

The second vertical frame is moved on the movement guide rail by a driving force of a driving source, the movement guide rail extending in the same direction as the movement direction of the movement object.

The driving source is a hydraulic cylinder, and a drive rod entering and exiting the hydraulic cylinder is connected to the second vertical frame so that the second vertical frame is moved along the movement guide channel.

The drive source is a motor, the rack gear is engaged with the pinion provided on the rotating shaft of the motor to transfer power, the rack gear is installed on the ground and the motor is installed on the second vertical frame.

The head frame is installed to move the print head by the head moving mechanism.

The print head is connected to the head moving mechanism through a head support, and extends in the moving direction of the print head.

According to another feature of the invention, the present invention is an automatic marking method for a moving object to display the necessary information by using a print head moved along a head frame installed across the moving object, the width of the moving object One-way marking step of performing the marking while moving the print head in a predetermined inclination with respect to the direction, and after the one-way marking step is completed, the head frame is rotated about one end thereof to move the print head of the moving object. Inclined direction switching step to be opposite to the one-way marking step with respect to the width direction, and marking while moving the print head along the head frame inclined in the opposite direction to the one-way marking step with respect to the width direction of the moving object. It includes the other direction marking step.

The inclination direction conversion step is performed by the second vertical frame rotatably supporting one end of the head frame is received in parallel with the moving direction of the moving object by receiving the drive source of the drive source.

In the automatic marking apparatus for moving objects and the marking method according to the present invention, the following effects can be obtained.

In the present invention, when the print head moves to one side in the width direction of the moving object and the other side in the width direction, the inclination with respect to the moving direction of the moving object is reversed. When moving to the other side, all marking work can be done to the marking effect on the moving object more quickly.

In the present invention, if other conditions are the same, a relatively small number of printheads may be used or the speed of the printhead may be relatively slow.

1 is a perspective view showing a preferred embodiment of the automatic marking device for moving objects according to the present invention.
Figure 2 is a plan view schematically showing the configuration of an embodiment of the present invention.
Figure 3 is a perspective view showing a configuration for the movement of the second vertical frame in the embodiment of the present invention.
Figure 4 is an operating state showing a state in which the print head can be moved inclined in one direction in the embodiment of the present invention.
Figure 5 is an operation state showing a state in which the print head can be moved inclined in the other direction in the embodiment of the present invention.
6 is an explanatory diagram for explaining marking while the print head moves in the state shown in FIG. 4;
7 is an explanatory diagram showing that the print head is marked while moving in the state of FIG.
8 is an explanatory diagram for explaining marking while the print head moves in the state shown in FIG. 5;
9 is an explanatory diagram showing that the print head is marked while moving in the state of FIG. 8;

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the automatic marking device for moving objects according to the present invention will be described in detail.

As shown in the drawings, the conveyor 10 transfers a moving object 20 such as an iron plate in one direction. Since the detailed configuration of the conveyor 10 is a known one configured by installing a roller that is rotated in the frame, a detailed description thereof will be omitted. In the drawing of the present embodiment, the movable object 20 may be various, such as an iron plate having a rectangular plate shape or a three-dimensional shape such as a box.

The head frame 30 is installed across the conveyor 10 in the width direction. The head frame 30 is equipped with a configuration such as a print head 36 to be described below. Both ends of the head frame 30 are supported by the first vertical frame 31 and the second vertical frame 32 respectively provided at both ends in the width direction of the conveyor 10.

The first vertical frame 31 is fixedly installed on the ground, and has a first center of rotation shaft 31 'at an upper end thereof, so that the head frame 30 has the first center of rotation shaft 31'. It can be rotated about. The second vertical frame 32 also has a second rotation center axis 32 'so that the head frame 30 can be rotated about the second rotation center axis 32'. In the illustrated embodiment, the linkage hole 33 through which the second center of rotation shaft 32 'penetrates the head frame 30 is formed. The linkage hole 33 is provided for the smooth linkage of the head frame 30 with the rotation center axis 31 ′, 32 ′ of the first and second vertical frames 31, 32. That is, the linkage hole 33 is not a garden but a long hole extending in one direction, and is used to correct the drawing of the circular trajectory of the head frame 30 about the first rotation center axis 31 ′. The linkage hole 33 may be formed at a position corresponding to the first rotation center axis 31 ′.

A head support 34 is installed in the head frame 30, and a printer head 36 is mounted in the head support 34. In the present embodiment, the print head 36 extends in the longitudinal direction parallel to the moving direction of the moving object 20. The head frame 30 is also provided with a head moving mechanism 38. The head moving mechanism 38 moves the head support 34 on which the printer head 36 is mounted along the head frame 30. The head moving mechanism 38 may include various configurations such as a motor and a wire, a motor and a chain, a gear driven by the motor, and a rack gear corresponding to the gear.

On the other hand, in order to position the head frame 30 inclined with respect to the moving direction of the moving object 20, the second vertical frame 32 is the moving direction of the moving object 20 by the conveyor 10 It will be possible to do a straight reciprocating motion in the same direction. This is to allow the head frame 30 to have a predetermined angle without being orthogonal to the moving direction of the moving object 20.

To this end, a pair of rib-shaped moving guides 40 are installed side by side at the lower end of the second vertical frame 32, and the moving guide 40 is a moving guide rail installed on the ground on which the conveyor 10 is installed. It is moved along the mobile channel 43 of 42. The movement channel 43 has a length longer than the movement distance of the second vertical frame 32 at a position corresponding to the movement guide 40.

A driving source 44 is provided to move the second vertical frame 32. The driving source 44 provides a driving force for the movement of the second vertical frame 32. In this embodiment, a hydraulic cylinder is used, but it is not necessary. The drive source 44 is provided with a drive rod 46 to move in and out of the drive source 44. The tip of the driving rod 46 is connected to the second vertical frame 32. The driving rod 46 enters into and out of the driving source 44 to allow the second vertical frame 32 to move along the movement guide rail 42.

On the other hand, based on FIG. 4, the structure for operation | movement of the said printhead 36 is demonstrated easily. First, marking on the movable object 20 in the printhead 36 is performed by the print controller 50. The print controller 50 controls the printhead 36 while providing data to the printhead 36 for marking, ie, printing, in the printhead 36. The data provided to the print controller 50 is processed by the print management controller 52, and the print data provided by the database server 54 may be processed by the print management controller 52 to be used by the print head 36. Make it. The processed data thus produced is transferred to the print head 36 through the print controller 50.

On the other hand, the head moving mechanism 38 installed in the head frame 30 is controlled by the mechanism controller 56. In addition, the mechanism part controller 56 also controls the rotation of the head frame 30 about the rotation center axis 31 ′. That is, the mechanism control unit 56 operates the drive source 44 to move the second vertical frame 32.

In addition, supplying ink to the print head 36 is performed by the ink supply 58. The ink supplier 58 supplies ink to the print head 36, which may be controlled by the mechanism controller 56.

 Hereinafter, the automatic marking apparatus for moving objects according to the present invention having the configuration as described above will be described in detail to perform the automatic marking.

In the present invention, the print head 36 is moved along the head frame 30, the head frame 30 is inclined in a predetermined direction with respect to the width direction of the moving object (20). Therefore, the print head 36 moves inclined with respect to the moving direction of the moving object 20, and in addition, the moving object 20 moves, so that the print head 36 actually moves the moving object 20. Marking is performed while moving in the width direction. That is, the process described above is a printer in a state in which the second vertical frame 32 is moved forward in the moving direction of the moving object 20 relative to the first vertical frame 31 as shown in FIG. Movement of the head 36 is performed.

Then, as shown in FIG. 4, the print head 36 moves in one direction and then marks the surface of the moving object 20 when it returns to the opposite direction. In this case, the print head 36 moves along the head frame 30 in a direction opposite to that described above. The angle formed by the head frame 30 is also reversed from above. This state is illustrated in FIG. 5, wherein the second vertical frame 32 is located at a rear end of the moving object 20 relative to the first vertical frame 31. In this case, marking is performed while the print head 36 is moved in a direction opposite to the marking direction of the print head 36 described above.

As described above, when marking is performed on the moving object 20 moved by the conveyor 10 using the printer head 36 moving linearly in the width direction of the moving object 20, the moving object 20 The printing state will be in an inclined form depending on the speed of the conveyor (the speed of the conveyor) and the speed of the printhead 36. Therefore, in order to solve such a problem, the moving object 20 may be moved inclined, or the moving direction of the print head 36 may be inclined with the moving object 20. In this embodiment, the moving direction of the print head 36 is inclined with respect to the width direction of the moving object 20.

Thus, the marking of the moving object 20 will be described in more detail. First, the width of the moving object 10 is 5000 mm, and the moving speed is 6 M / Min (100 mm / sec: a). When the width of the print head 36 is 1152 mm and the moving speed is 60 M / Min (1000 mm / sec: b), the inclination angle of the head frame 30 is 5.7 °. 6, tan c = a / b, and c = tan-1 (a / b) to c = tan-1 (100/10000) = 5.7 °.

As shown in FIG. 6, the moving object 20 moves at a speed of 6 M / Min in the direction of arrow A, and the print head 36 moves at a speed of 60 M / Min in the direction of arrow B. As shown in FIG. When the marking is moved while moving in this way, the marking is made in the area hatched in FIG. In this case, the dotted line formed in parallel with the arrow B becomes the movement trajectory of the print head 36, and marking is performed on the hatched area according to the moving object 20.

Next, as shown in FIG. 8, the headframe 30 is inclined in the arrow B direction. This is accomplished by the second vertical frame 32 being moved along the movement guide rail 42. That is, the head frame 30 is moved to the state of FIG. At this time, the print head 36 is in the state of being on the side of the second vertical frame 32.

After the first marking described above, the head frame 30 is rotated about the first rotation center axis 31 ′ such that the head frame 30 is -5.7 °. This movement results in an overlap of 152 mm with the first marked area, as shown in FIG. 8. That is, the movement of the second vertical frame 32 should move to the second marking start position while the moving object 20 moves 152 mm after the first marking. Therefore, the distance for moving to the second printing position is 1000mm, and the moving object 20 moves at 6M / Min speed, so the time for moving 152mm becomes 1.52 seconds. Therefore, the speed V = 1000 mm // 1.52 sec = 39.4 M / Min. Therefore, the moving speed of the second vertical frame 32 is 39.4 M / Min.

In this way, after the second vertical frame 32 is moved, the state in which the print head 36 performs the second marking while moving along the head frame 30 is shown in FIG. 9.

After that, the marking is repeated while repeating the above description. That is, the printhead 36 moves as shown in FIG. 6, the headframe 30 is rotated, the printhead 36 moves as shown in FIG. 8, and again the headframe ( 30 is rotated, and again, as shown in FIG. 6, the print head 36 is moved, and the marking operation is repeatedly performed.

The scope of the present invention is not limited to the embodiments described above, but may be defined by the scope of the claims, and those skilled in the art may make various modifications and alterations within the scope of the claims It is self-evident.

 For example, the configuration for linearly reciprocating the second vertical frame 32 in the moving direction of the moving object 20 may be various. Although the same as the hydraulic cylinder is presented as the driving source 44, the second vertical frame 32 may be moved using a motor and a gear. That is, the second vertical frame 32 may be moved using pinions and rack gears provided on the rotation shaft of the motor, or may be moved using a motor, a wire, a chain, or the like.

When the motor is used as the driving source 44 and the rack gear and the pinion are used, the rack gear may be installed on the ground, and the motor may be installed on one side of the second vertical frame.

10: conveyor 20: moving object
30: head frame 31: first vertical frame
31 ': 1st rotation center axis 32: 2nd vertical frame
32 ': 2nd center of rotation 33: Interlock
34: head support 36: print head
38: head moving mechanism 40: moving guide
42: moving guide rail 43: moving channel
44: drive source

Claims (9)

In the automatic marking device for moving objects that performs marking on the surface of the moving object,
A head frame positioned above the moving object,
A print head which moves along the head frame and performs marking on the movable object;
A first vertical frame rotatably supporting one end of the head frame;
And a second vertical frame capable of linear reciprocating motion with respect to the moving direction of the moving object while rotatably supporting the other end of the head frame.
The second vertical frame is moved by a predetermined distance between the front and the rear of the moving direction of the moving object relative to the first vertical frame, so that the head frame rotates around the first vertical frame Device.
According to claim 1, wherein the first vertical frame and the second vertical frame are respectively provided with a first and second rotation center axis, the first and second rotation center axis through both ends of the head frame, One of the portions of the head frame through which the first and second rotational center shafts pass is an automatic marking device for moving objects.

The automatic marking apparatus of claim 1, wherein the second vertical frame is moved on the moving guide rail by a driving force of a driving source, and the moving guide rail extends in the same direction as the moving direction of the moving object.
The method of claim 3, wherein the drive source is a hydraulic cylinder, the drive rod which enters into and out of the hydraulic cylinder is connected to the second vertical frame to move the second vertical frame along the movement guide channel automatic Marking device.
According to claim 3, wherein the drive source is a motor, the rack gear is engaged with the pinion provided on the rotating shaft of the motor to transfer power, the rack gear is installed on the ground and the motor is installed on the second vertical frame Automatic marking device for moving objects.
The automatic marking apparatus according to any one of claims 1 to 5, wherein the print head is installed to be moved by the head moving mechanism in the head frame.

7. The automatic marking apparatus of claim 6, wherein the print head is connected to the head moving mechanism through a head support and extends in the moving direction of the print head.
In the automatic marking method for a moving object to display the necessary information by using a print head moved along the head frame installed across the moving object,
A one-way marking step of performing marking while the print head is inclined with respect to the width direction of the moving object;
After the one-way marking step is completed, the inclination direction conversion step of rotating the head frame about one end thereof so that the moving direction of the print head is opposite to the one-way marking step with respect to the width direction of the moving object,
And a second direction marking step of performing marking while moving the print head along the head frame in a direction opposite to the one direction marking step with respect to the width direction of the moving object.
The method of claim 8, wherein the inclination direction switching step is performed by the second vertical frame rotatably supporting one end of the head frame is received by the drive source of the drive source to move in parallel to the moving direction of the moving object Marking method.

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