WO2023177049A1

WO2023177049A1 - Marking system

Info

Publication number: WO2023177049A1
Application number: PCT/KR2022/020458
Authority: WO
Inventors: 이승구
Original assignee: (주)애니텍
Priority date: 2022-03-15
Filing date: 2022-12-15
Publication date: 2023-09-21
Also published as: KR20230134701A; KR102673770B1

Abstract

A marking system according to an embodiment of the present invention comprises: a guide rail which contacts and supports the inner surface of a marking object; a first guide portion and a second guide portion in contact with the marking object; a main post; a support; a first rotation shaft; an upper connecting bar; a lower connecting bar; a first rail portion; a second rail portion; a printing module which moves forward or backward along the first rail portion and the second rail portion and marks information on the marking object; a moving force application unit which advances or reverses the printing module; and a restoring force application unit which provides a force for moving the rear end of the first guide portion and the rear end of the second guide portion in a direction to be closer to the guide rail, to the first guide portion and the second guide portion, thereby improving the printing accuracy and stability.

Description

marking system

The present invention relates to a marking system, and more specifically, to a system that automatically marks predetermined information on the surface of a marking object such as a cow or a pig.

Various technologies have been proposed to display test results and manage history so that consumers can trust the country of origin or quality of food ingredients, and Patent Document 1 (KR 2004-0089062 A) and Patent Document 2 (KR 2005-0111450 A) Systems for managing the history of livestock products and meat are introduced.

Meanwhile, in the case of livestock products, once slaughter is completed and measurement and grading are made, the grade or weight is marked on the surface of the carcass. When the manager marks the grade, etc. on the surface of the carcass by applying a stamp to the carcass, the marking Not only was there significant variation in location and quality, but there was also the problem that it took a significant amount of time to process a large number of carcasses. In addition, the technology of Patent Document 3 (KR 10-1944488 B) proposed to solve this problem is that when the surface inclination deviation of the marking object is severe, the marking content is deformed, making identification of the marking content difficult, etc. There was a problem.

One aspect of the present invention, which was created to solve the above problems, can provide a marking system with improved accuracy and stability of printing by enabling stable and uniform printing regardless of the shape of the surface of the marking object.

The marking system according to an embodiment of the present invention is a marking system in which at least a portion of the outer surface is made of a curved surface and marks information on the curved surface of a marking object moving in a first direction, and is parallel to the first direction. A guide rail that contacts and supports the inner surface of the marking object; A first guide part and a second guide part in contact with the marking object; A main post provided at a position spaced apart from the guide rail; A support portion provided on the main post; a first rotation axis provided on the support unit and perpendicular to the ground; an upper connecting bar, one end of which is rotatably coupled to the first rotation shaft and the other end of which is coupled to the first guide portion; a lower connection bar, one end of which is rotatably coupled to the first rotation shaft and the other end of which is coupled to the second guide part; A first rail portion provided in the first guide portion; a second rail portion provided in the second guide portion; a printing module that moves forward or backward along the first rail portion and the second rail portion and marks information on the marking object; A movement force application unit that moves the printing module forward or backward; And a restoring force application unit that provides a force to the first guide part and the second guide part to move the rear end of the first guide part and the rear end of the second guide part in a direction closer to the guide rail. The first guide part and the second guide part may be rotated independently of each other to change the vertical angle oriented by the printing module.

Additionally, a first slider rotatably and slidingly coupled to the first rail portion; a first frame to which the first slider is coupled to one side; a second slider rotatably and slidingly coupled to the second rail portion; a second frame to which the second slider is coupled to one side; a printing frame rotatably coupled to the other side of the first frame and the other side of the second frame; and a print head coupled to the printing frame.

Additionally, a connection module in which one side of the first rail portion is rotatably coupled and one side of the second rail portion is rotatably coupled; It may further include a first linker rotatably coupled to the connection module, and the restoring force applicator may include a first cylinder rotatably coupled to the first linker.

In addition, the connection module may include a rail holder to which one side of the first rail portion is rotatably coupled and one side of the second rail portion is rotatably coupled; A connecting piece extending from the rail holder; A T-shaped protrusion protruding from the connecting piece, wherein the first linker is formed in an 'L' shape and includes a first part extending in a vertical direction and a second part extending in a horizontal direction, and the second part is rotatably coupled to the T-shaped protrusion about an axis perpendicular to the ground, and the first part may be rotatably coupled to the first cylinder about an axis horizontal to the ground.

In addition, the moving force applicator further includes a second cylinder, a rod, and a connector, where one side of the connector is coupled to the rod and the other side is coupled to the printing module, so that the rod is introduced or withdrawn into the second cylinder. The printing module can be moved in the first direction or in a second direction opposite to the first direction.

In addition, a roller is rotatably provided on the printing frame, and the roller includes a first roller and a third roller located above the print head, and a second roller and a fourth roller located below the print head. Including, the distance between the first roller and the third roller may be longer than the distance between the second roller and the fourth roller.

In addition, an encoder that controls the printing progress of the printing module according to the rotation amount of the roller may be further included.

In addition, the first guide part is provided with a first curved protrusion, and the first curved protrusion is such that a portion of the first guide part adjacent to the rear end of the first guide part protrudes in a direction closer to the guide rail. It may be curved in a direction away from the first guide rail 720 so that the rear end of the first guide part moves away from the first guide rail 720.

In addition, the first guide part, the second guide part, and the printing module are coupled to be able to be lifted and lowered on the main post, and when the marking object is larger than a predetermined weight, the first guide part, the second guide part, and The printing module may be provided to descend to a predetermined height.

In addition, the upper part of the main post includes the guide rail and is inclined in a direction approaching a first virtual plane perpendicular to the ground, and as the first guide part, the second guide part, and the printing module descend, The shortest distance between the printing module and the first virtual plane may be increased.

Additionally, one side of the connecting piece may be coupled to the rail holder, and the other side of the connecting piece may be coupled to the second cylinder or rod.

Additionally, the minimum value of the distance from the second cylinder and rod to the first rail portion may be equal to the minimum value of the distance from the second cylinder and rod to the second rail portion.

In the marking system according to an embodiment of the present invention, accuracy and stability of printing can be improved by uniformly marking various information on the surface of the marking object while the printing module is stably supported regardless of the shape of the surface of the marking object.

1 is a plan view schematically illustrating a marking system according to an embodiment of the present invention.

Figure 2 is a diagram for explaining main parts of the marking system according to an embodiment of the present invention

Figure 3 (a) is a side view schematically illustrating a marking system according to an embodiment of the present invention, and Figure 3 (b) is a plan view schematically illustrating a marking system according to an embodiment of the present invention.

Figures 4 (a) to (c) are diagrams for explaining the principle of changing the vertical angle of the printing module according to an embodiment of the present invention.

Figure 5 is a diagram for explaining a restoring force application unit according to an embodiment of the present invention

6A to 6F are diagrams for explaining the operating principle according to an embodiment of the present invention.

Figure 7 is a diagram for explaining the marking surface of a marking object and the orientation direction of the printing module according to an embodiment of the present invention.

Figure 8 is a diagram for explaining main parts of a marking system according to another embodiment of the present invention

Figure 9 (a) is a side view schematically illustrating a marking system according to another embodiment of the present invention, and Figure 9 (b) is a plan view schematically illustrating a marking system according to an embodiment of the present invention.

The marking system 1000 according to an embodiment of the present invention includes a main post 110, a support part 120, a first rotation axis 130, a first guide part 210, a second guide part 310, and a first rotation axis 130. Includes a rail unit 220, a second rail unit 320, a printing module 400, a restoring force applying unit 510, a moving force applying unit 600, a base frame 710, and

guide rails

720, 730. can do.

In the marking system 1000 according to an embodiment of the present invention, cows, pigs, etc. are referred to as marking objects (M). However, in addition to livestock products such as cows and pigs, any case where predetermined information such as price, grade, weight, and country of origin must be displayed on a curved surface can be viewed as a marking object (M).

In one embodiment, referring to Figure 6, the inner surface of the marking object (M) is moved while being supported by the first guide rail 720 and the second guide rail 730 installed on the base frame 710, where The moving direction of the marking object M may be referred to as the first direction. And, the direction opposite to the first direction may be referred to as the second direction. Additionally, as illustrated in the drawing, the marking object M may be moved by contacting a pair of semiconductors cut in half with the first guide rail 720 and the second guide rail 730.

In this way, when the marking object (M) enters the marking system (1000), the print head (410) provided in the printing module (400) performs marking work while maintaining a constant distance from the surface of the marking object (M). You can. At this time, the printing module 400 can be connected to various terminals or servers through a wired or wireless communication network to receive information about the marking object (M).

The marking system 1000 according to an embodiment of the present invention is provided to face the first guide rail 720 and the second guide rail 730 in directions symmetrical about the base frame 710, thereby performing efficient marking operations. This can be done.

In one embodiment, the marking system 1000 may include a first guide part 210 and a second guide part 310. In one embodiment, at least one of the front end 211 of the first guide part and the rear end 212 of the first guide part may be bent in a direction away from the first guide rail 720. Accordingly, the marking object (M) entering between the first guide part 210 and the first guide rail 720 can be moved smoothly without being caught or stabbed by the front end 211 of the first guide part, and the marking process is complete. It is possible to prevent the problem of the surface of the marking object (M) being damaged by the rear end 212 of the first guide part in the process of the marking object (M) leaving the first guide part (210). The same applies to the front end 311 of the second guide part and the rear end 312 of the second guide part.

In one embodiment, the marking system 1000 may include a main post 110 provided at a position spaced apart from the base frame 710. At this time, the main post 110 may be installed in a direction perpendicular to the ground, but is not limited thereto. In one embodiment, the main post 110 includes a support portion 120 for fixing the marking system 1000, and the support portion 120 may include a first rotation axis 130 perpendicular to the ground.

Referring to FIGS. 2 and 3 , one end of the upper connection bar 213 may be coupled to the first rotation shaft 130 and the other end may be coupled to the first guide portion 210 . Additionally, one end of the lower connection bar 313 may be coupled to the first rotation shaft 130 and the other end may be coupled to the second guide portion 310.

At this time, the upper connection bar 213 and the lower connection bar 313 are rotatably coupled to the first rotation axis 130, and the first guide part 210 and the second guide part ( 310) may rotate independently depending on the size of the marking object (M) and come into contact with the outer surface of the marking object (M).

For example, referring to FIG. 7 , the marking object M may be thicker near the second guide portion 310 than near the first guide portion 210 . That is, the distance T1 from the first guide rail 720 at the height of the first guide unit 210 to the marking surface (MS) of the marking object (M) is the distance T1 from the first guide rail 720 at the height of the second guide unit 310. ) may be smaller than the distance T2 from the marking surface (MS) of the marking object (M). Although not shown, a situation in which T1 is greater than T2 may also occur.

The marking system 1000 according to an embodiment of the present invention has an angle at which the first guide unit 210 rotates about the first rotation axis 130 and the second guide unit 310 rotates around the first rotation axis 130. The angles rotated around may be different. Accordingly, even if the shape of the marking surface (MS) of each marking object (M) is different, the risk of differences in printing results can be reduced.

In one embodiment, the first guide part 210 is provided with a first rail part 220, and the first guide part ( 210) and the first rail portion 220 may be combined. In addition, the second guide part 310 is provided with a second rail part 320, and is connected to the second guide part 310 and the second guide part 310 by the first lower auxiliary connecting bar 314 and the second lower auxiliary connecting bar 315. The second rail portion 320 may be coupled.

In one embodiment, the printing module 400 moves forward or backward along the first rail portion 220 and the second rail portion 320 and marks information on the marking object (M).

In one embodiment, the marking system 1000 may further include a resilience application unit 510. This restoring force application unit 510 applies a force to move the rear end 212 of the first guide part and the rear end 312 of the second guide part in a direction closer to the

guide rails

720 and 730, to the first guide part 210 and the second guide part 312. It can be provided to the second guide unit 310.

Referring to Figure 5, the restoring force applicator 510 includes a first cylinder rotatably coupled to the first linker 520, and the first linker 520 is rotatably coupled to the connection module 530. You can. Additionally, the rail holder 531 included in the connection module 530 may be rotatably coupled to one side of the first rail portion 220 and rotatably coupled to one side of the second rail portion 320.

Accordingly, even if the first guide part 210 and the second guide part 310 rotate independently about the first rotation axis 130, there is no restoring force in the first rail part 220 and the second rail part 320. It can be delivered.

For example, if the first rail part 220 and the second rail part 320 are not rotatably coupled to the rail holder 531, the first guide part 210 and the second guide part 310 are connected to the first rotation axis. When rotated around (130), excessive stress may be applied to the joint portion of the rail holder 531, the first rail portion 220, and the second rail portion 320, resulting in damage.

Additionally, according to one embodiment of the present invention, the connection module 530 may further include a connection piece 532 and a T-shaped protrusion 533.

In addition, the connecting piece 532 is formed to extend in one direction from the rail holder 531, and the T-shaped protrusion 533 is formed to protrude from the connecting piece 532 and can be coupled to the first linker 520.

At this time, the first linker 520 is formed in an 'L' shape and may include a first part 521 extending in the vertical direction and a second part 522 extending in the horizontal direction. The second part 522 is rotatably coupled to the T-shaped protrusion 533 about an axis perpendicular to the ground, and the first part 521 is rotatably coupled to the first cylinder about an axis horizontal to the ground. You can.

Accordingly, in the process of transmitting the force generated by the restoring force application unit 510 to the first rail unit 220 and the second rail unit 320, the first guide unit 210 and the second guide unit 310 The degree to which the operation of independently rotating around the first rotation axis 130 is interrupted can be minimized.

According to one embodiment of the present invention, the movement force applicator 600 may move the printing module 400 coupled to the first rail unit 220 and the second rail unit 320 forward or backward.

At this time, the moving force applicator 600 may include a second cylinder 610, a rod 620, and a connector 630. Also, one side of the connector 630 may be coupled to the rod 620, and the other side may be coupled to the printing module 400. Accordingly, the rod 620 is retracted toward the inside of the second cylinder 610 to move the printing module 400 in the second direction, or the rod 620 is pulled out toward the outside of the second cylinder 610 to print. The module 400 can be moved in the first direction.

As a result, the printing module 400 moves forward or backward in a direction parallel to the marking object (M) along the first rail portion (220) and the second rail portion (320) to the curved surface of the outer surface of the marking object (M). It can perform the function of printing various information such as price, grade, weight, and country of origin.

In one embodiment, the printing module 400 includes a print head 410, a printing frame 420, a first rail joint 430, a second rail joint 440, a roller 450, and an encoder 460. may include.

At this time, the printing module 400 may be coupled to the first rail portion 220 by the first rail coupling portion 430, and may be coupled to the second rail portion 320 by the second rail coupling portion 440. It can be. Referring to FIG. 4, the first rail coupling portion 430 includes a first frame 431, a first slider 432, and a first hole 433, and the second rail coupling portion 440 includes a second rail coupling portion 440. It may include a frame 441, a second slider 442, and a second through hole 443.

The first slider 432 is coupled to the first rail unit 220 so as to be able to rotate and slide on the first rail unit 220, and the second slider 442 is capable of rotating and sliding on the second rail unit 320. It can be combined with the second rail portion 320.

Additionally, one side of the first frame 431 may be coupled to the first slider 432, and one side of the second frame 441 may be coupled to the second slider 442. At this time, the other side of the first frame 431 and the other side of the second frame 441 may be rotatably coupled to the printing frame 420. In addition, the print head 410 is coupled to the print frame 420, and a marking operation can be performed on the marking object M through the nozzle unit 411 provided in the print head 410.

Accordingly, the vertical angle oriented by the printing module 400 is changed so that the print head 410 performs marking operations at an angle close to vertical to the surface of the marking object (M) regardless of the size or shape of the marking object (M). This can be done.

FIG. 7 is a diagram for explaining the orientation direction of the marking surface MS of the marking object M and the printing module 400 on the first cross-section with the first direction as the normal line.

For example, as illustrated in FIG. 7, even when T1 < T2, the direction of the printing module 400 can be maintained close to perpendicular to the marking surface (MS) of the marking object (M), so the printing quality can be improved. You can. In addition, even when T1 and T2 are the same or when T1>T2, the direction in which the printing module 400 is oriented can be maintained close to perpendicular to the surface of the marking object (M) by the same principle. Meanwhile, as illustrated in (b) of FIG. 7, at least one of the first guide part 210 and the second guide part 310 does not contact the marking object (M) and only the roller 450 touches the marking object (M). M) may be contacted.

According to one embodiment, the printing module 400 further includes a roller 450 rotatably provided on the printing frame 420, and the roller 450 is a first roller located above the print head 410. 451 and a third roller 453 and a second roller 452 and a fourth roller 454 located below the print head 410 may be provided.

At this time, the first roller 451 to the fourth roller 454 may be rotated in contact with the curved surface of the outer surface of the marking object M. As a result, the print head 410 can spray ink while maintaining an appropriate distance from the surface of the marking object M. Accordingly, the printing quality can be improved and the risk of contamination or damage to the print head 410 and the nozzle unit 411 provided in the print head 410 can be reduced.

According to one embodiment of the present invention, the printing module 400 may further include an encoder 460, and the encoder 460 is provided on one side of the printing frame 420 and prints according to the rotation amount of the roller 450. You can control the printing progress of the module.

According to one embodiment, after marking content for a specific marking object (M) is transmitted to the printing module 400, the printing process may proceed according to the rotation of the roller 450. If the marking object (M) is relatively large, there is no problem in printing the entire marking content, but if the marking object (M) is relatively very small, the entire marking content is not printed and the marking object (M) comes out. may occur.

For example, assuming that the marking content received by the printing module 400 for a specific marking object (M) is completely printed when the roller 450 is rotated three times, in the case of a small marking object (M), the roller 450 There may be cases where it is rotated only 1-2 times and passes through the printing module 400 before it rotates completely. In this case, previously unprinted marking content is sprayed onto the next entering marking object (M), resulting in a mismatch between the marking information and the marking object (M), which reduces the reliability of the marking system (1000). It can happen.

Referring to (a) of FIG. 3, it is understood that the distance between the first roller 451 and the third roller 453 may be set to be longer than the distance between the second roller 452 and the fourth roller 454. It could be. Accordingly, by moving the third roller 453 in the first direction and installing it, the third roller 453 can maintain contact with the marking object M until the end.

As a result, even after the small marking object (M) passes through the print head 410, the third roller 453 is rotated a little more so that the marking content not printed on the small marking object (M) is transferred to the print head 410. It is possible to prevent errors from occurring during the marking process for the next marking object (M) by ensuring that it is all sprayed to the outside.

Referring to FIGS. 8 and 9, the first guide portion 210 may be provided with a first curved protrusion 217. At this time, the vicinity of the rear end 212 of the first guide part is curved to protrude in a direction approaching the first guide rail 720, and then curved in a direction away from the first guide rail 720 to form the rear end of the first guide part ( The first curved protrusion 217 may be formed in a shape that moves the guide rail 212 away from the first guide rail 720. In addition, the first guide part 210 is made to have a smooth curved shape overall, so that the phenomenon of sudden movement of the marking object (M) or the first guide part 210 during the movement of the marking object (M) can be minimized. . Meanwhile, the second guide portion 310 may also be provided with a second curved protrusion, and overlapping descriptions will be omitted.

In the process of moving the marking object (M) in the first direction, the marking object (M) may shake and momentarily move in the second direction. After the printing process of the marking object (M) is completed, the marking object (M) may be moved. If the marking object (M) is shaken in the second direction and comes into contact with or collides with the third roller (453) of the printing module (400) again, a problem may occur where the printed content is out of sync. In this embodiment, In the marking system according to the example, the first guide part 210 is provided with the first curved protrusion 217, so even if the marking object M that has passed the first curved protrusion 217 is shaken and moved in the second direction, the printing module The problem of the marking object (M) colliding with (400) can be fundamentally prevented.

In one embodiment, the printing module 400 is located closest to the rear end 212 of the first guide portion before printing begins, and then the marking object M contacts the first guide portion 210. Once started, the printing module 400 moves in the second direction at an appropriate timing to perform printing, and after printing is completed, it can return to the initial position by moving again in the first direction. Here, when the printing module 400 returns to the initial position while the marking object (M) is not sufficiently moved in the first direction, the printing module 400, especially the third roller, during the returning process of the printing module 400 A problem may occur where (453) touches or bumps into the marking object (M). However, in the marking system according to this embodiment, the first guide portion 210 is provided with the first curved protrusion 217, so that the printing module 400 is in contact with the marking object when it is in contact with the first curved protrusion 217. Since the risk of the marking object M being contacted or bumped into can be significantly reduced, the above-mentioned problems can be prevented.

In one embodiment, the minimum value of the distance from the second cylinder 610 and the rod 620 to the first rail portion 210 is the distance from the second cylinder 610 and the rod 620 to the second rail portion 310. It may be equal to the minimum value of the distance. That is, the second cylinder 610 and the rod 620 may be provided at an intermediate position between the first rail portion 210 and the second rail portion 310. Accordingly, during the process of the rod 620 being retracted into or protruding from the second cylinder 610, excessive pressure is applied to the joint portion between the printing module 400 and the first rail portion 210 and the second rail portion 310. The problem of impartial load can be prevented.

In one embodiment, one side of the connecting piece 532 may be coupled to the rail holder 531, and the other side of the connecting piece 532 may be coupled to the second cylinder 610 or the rod 620. Accordingly, the stability of the restoring force applying unit 510 and the moving force applying unit 600 may be improved.

In one embodiment, the first slider 432 may be implemented as a bushing in surface contact with the first rail portion 220. In this case, stability and durability may be improved compared to a case where the contact area is implemented with a ball bearing, etc. You can.

Referring to Figures 8 and 9, the first frame 431 and the second frame 441 may be provided in the connection frame 435. And, the connector 630 can be coupled to this connection frame 435. Additionally, the printing frame may be rotatably coupled to the connection frame 435.

In one embodiment, the first guide unit 210, the second guide unit 310, and the printing module 400 may be provided to be capable of being lifted up and down on the main post 110.

The weight of a typical sow ranges from about 130 kg to 200 kg, and its legs are longer than those of standard sows. In addition, in the case of sows, the buttocks, which are the printing location, are approximately 100 to 130 mm lower than those of standard sows, and the thickness of the semiconductor is approximately 20 to 50 mm thicker than that of standard sows. Therefore, in the conventional equipment in which the height of the printing module 400 was fixed, all marking objects (M) had no choice but to be printed at the same height regardless of the size of the marking objects such as standard pigs and sows, but the work of the present invention According to the embodiment, the printing module and its accessories can be raised and lowered on the main post 110, so the printing height can be adjusted. In particular, the weight of the marking object (M) is detected, and the printing module 400 is provided to descend when the marking object (M) is larger than a predetermined weight, thereby enabling printing at an appropriate position by utilizing the relationship between the weight and size of the conductor. It can be done.

In one embodiment, when the main post 110 is installed at an angle, the distance between the printing module 400 and the guide rail can be adjusted according to the elevation of the printing module 400. For example, if the main post 110 is installed on a first virtual plane that includes a guide rail and is perpendicular to the ground so that the upper part of the main post is closer than the lower part of the main post, the lower the printing module 400, the lower the printing module and the first The distance between virtual planes can be increased. Accordingly, the marking system 1000 according to an embodiment of the present invention can perform printing under conditions optimized for the weight, size, and shape of the marking object (M).

The marking system 1000 according to an embodiment of the present invention as described above can accurately mark information on the curved surface of the marking object (M), while reducing the number or structure of components compared to the prior art, and reducing the number of consumables. Since the replacement cycle can be reduced compared to before, maintenance costs can be reduced.

Although specific embodiments of the present invention have been described so far, it is obvious that various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims and equivalents thereof as well as the claims described later. The above-described embodiments should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their equivalents. All changes or modified forms derived from the concept should be construed as falling within the scope of the present invention.

The present invention can be used in the industrial field of slaughtering, managing the history, and distributing livestock products such as cattle and pigs. In particular, it is used in the industrial field of printing various histories or grades on the surface of the produced livestock products, contributing to the development of related industries. can do.

Claims

In a marking system where at least a portion of the outer surface is curved and marks information on the curved surface of a marking object moving in a first direction,

A guide rail that is parallel to the first direction and contacts and supports the inner surface of the marking object;

A first guide part and a second guide part in contact with the marking object;

A main post provided at a position spaced apart from the guide rail;

A support portion provided on the main post;

a first rotation axis provided on the support unit and perpendicular to the ground;

an upper connecting bar, one end of which is rotatably coupled to the first rotation shaft and the other end of which is coupled to the first guide portion;

a lower connection bar, one end of which is rotatably coupled to the first rotation shaft and the other end of which is coupled to the second guide portion;

A first rail portion provided in the first guide portion;

a second rail portion provided in the second guide portion;

a printing module that moves forward or backward along the first rail portion and the second rail portion and marks information on the marking object;

A movement force application unit that moves the printing module forward or backward; and

It includes a restoring force application unit that provides a force to the first guide part and the second guide part to move the rear end of the first guide part and the rear end of the second guide part in a direction closer to the guide rail,

A marking system wherein the first guide part and the second guide part are rotated independently of each other to change the vertical angle oriented by the printing module.
According to claim 1,

a first slider rotatably and slidingly coupled to the first rail portion;

a first frame to which the first slider is coupled to one side;

a second slider rotatably and slidingly coupled to the second rail portion;

a second frame to which the second slider is coupled to one side;

a printing frame rotatably coupled to the other side of the first frame and the other side of the second frame; and

A marking system including a print head coupled to the print frame.
According to claim 1,

a connection module to which one side of the first rail portion is rotatably coupled and one side of the second rail portion is rotatably coupled;

It further includes a first linker rotatably coupled to the connection module,

The restoring force applicator is a marking system comprising a first cylinder rotatably coupled to the first linker.
According to clause 3,

The connection module is,

a rail holder to which one side of the first rail portion is rotatably coupled and one side of the second rail portion is rotatably coupled;

A connecting piece extending from the rail holder;

Including a T-shaped protrusion protruding from the connection piece,

The first linker is formed in an 'L' shape and includes a first part extending in a vertical direction and a second part extending in a horizontal direction,

The second part is rotatably coupled to the T-shaped protrusion about an axis perpendicular to the ground,

A marking system, wherein the first part is rotatably coupled to the first cylinder about an axis horizontal to the ground.
According to claim 1,

The moving force applicator further includes a second cylinder, a rod, and a connector,

One side of the connector is coupled to the rod and the other side is coupled to the printing module,

A marking system, wherein the rod is inserted or withdrawn into the second cylinder to move the printing module in the first direction or in a second direction opposite to the first direction.
According to clause 2,

A roller is rotatably provided on the printing frame, wherein the roller includes a first roller and a third roller located above the print head, and a second roller and a fourth roller located below the print head. ,

The distance between the first roller and the third roller is

A marking system characterized in that it is longer than the distance between the second roller and the fourth roller.
According to clause 6,

A marking system further comprising an encoder that controls the printing progress of the printing module according to the rotation amount of the roller.
According to claim 1,

The first guide portion is provided with a first curved protrusion, and the first curved protrusion is:

In the first guide part, a portion adjacent to the rear end of the first guide part is curved to protrude in a direction approaching the guide rail, and then curved in a direction away from the first guide rail 720, so that the rear end of the first guide part is 1 A marking system characterized in that it is shaped to move away from the guide rail (720).
According to claim 1,

The first guide part, the second guide part, and the printing module are coupled to be able to be lifted and lowered on the main post,

A marking system, wherein when the marking object is larger than a predetermined weight, the first guide part, the second guide part, and the printing module are lowered by a predetermined height.
According to clause 9,

The upper part of the main post includes the guide rail and is inclined in a direction approaching a first virtual plane perpendicular to the ground,

A marking system, wherein as the first guide unit, the second guide unit, and the printing module descend, the shortest distance between the printing module and the first virtual plane increases.