KR20120078812A - Printing feeder - Google Patents

Abstract

PURPOSE: A printing paper supplying device is provided to remove fine dust and paper powder on a printing paper and to improve a printing quality by supplying a printing paper having a clean printing surface. CONSTITUTION: A printing paper supplying device comprises a paper feeding roller(120), a paper powder removing roller(130), and a motor(140). The paper feeding roller transfers printing papers in a paper feeding stand to a transferring unit of a printing device. The paper powder removing roller is perpendicularly extended to a progressive direction of a printing paper in the upper part of the transferring unit and the paper feeding roller. A brush contacting to a printing surface of the printing paper is joined to the outer circumference of the paper powder removing roller. The motor provides torque to the paper powder removing roller.

Description

Print Feeder {PRINTING FEEDER}

The present invention relates to a printing paper feeding device, and more particularly, to a printing paper feeding device capable of supplying a printing paper to a printing paper after removing fine dust or stakes and static electricity from the printing paper to obtain a high quality printed matter.

Printing is the use of ink to make copies of papers or drawings drawn on plates, mechanically or chemically, on paper or cloth, making copies. The history of printing dates back to the end of the sixth century when woodblocks were invented in China. On the other hand, in Korea, woodblock printing has already reached a considerable level in the 8th century through the Mugujeong Cliff Darani, which was found on the top floor of the Buddha statue of Buddha's pagoda in Gyeongju Bulguksa.

Such printing has continued to develop, and in modern times, various printing-related devices such as a pressure press, a rotary press, a type casting machine, an automatic typewriter, and an automatic paper feeder have been developed.

Here, the paper feeder is a device for automatically supplying printing paper to a printing machine, which is called a feeder, and is typically classified into a sheet feeder feeder and a rotoprinter feeder using a rolled form of printing paper.

The sheet feeding device is provided with a sheet aspirator, two sheet detectors, a front stopper, a side stopper, etc. The feeder for a rotary press is provided with a feed speed controller, a paper joint device, and the like.

Therefore, a conventional paper feeder is capable of automatically processing a large amount of printing by loading a bundle of sheets of printing paper or a roll of printing paper on one side and continuously feeding the printing machine.

However, the printing paper loaded in the paper feeder contains fine dust and stake, so if it is supplied to the printer as it is, the fine dust or stake will accumulate inside the printer, causing the printer to break down, and the remaining fine dust or stake on the printing surface. There is a problem that the ink is applied up the print quality is poor.

In addition, friction occurs between the printing paper supplied to the printing machine and the remaining printing paper, thereby generating static electricity, and the fine dust and stake floating around the paper stick to the printing paper, thereby increasing the above problems.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a printing paper feeding device that removes fine dust or shares of printing paper supplied to a printing press.

In addition, there is another object to remove the static electricity generated by the friction between the printing paper to prevent the fine dust and stake floating around the printing paper.

In order to achieve the above object, the present invention provides a paper feed roller for transferring the printing paper of the paper feeder to the transfer unit of the printing machine; An equity removal roller, which extends perpendicularly to the advancing direction of the printing paper and is attached to an outer circumferential surface of the paper feed roller or the transfer unit, perpendicular to the traveling direction of the printing paper; And a motor providing a rotational force to the stake removing roller.

In addition, the lower side is open and the duct for receiving the stake removal roller to the inside along the longitudinal direction; And a blower for sucking air in the duct.

The apparatus may further include an electrostatic elimination stage coupled to a lower end of the front sidewall of the stake removing roller based on the traveling direction of the printing paper, and having a lower end corresponding to the lower end of the stake removing roller.

In addition, the motor rotates the stake removal roller is the same as the traveling direction of the printing paper and faster than the traveling speed.

The printing paper feeding apparatus according to the present invention can improve the quality of printing by removing fine dust or equity of the printing paper and providing a printing paper having a clean printing surface on the printing press.

In addition, it is possible to prevent fine dust or stakes from accumulating inside the printing press and causing a malfunction.

Furthermore, by removing static electricity generated by the friction between the brush of the printing paper or the equity removal roller, it is possible to prevent the fine dust and the floating around the paper from being fed to the printing machine while stuck to the printing paper.

1 and 2 are side cross-sectional views showing a printing paper feeding device according to the present invention.
3 is a front view showing a printing paper feeding device according to the present invention.
Figure 4 is an exploded perspective view showing a duct of the printing paper feeding apparatus according to the present invention.
5 is a partially enlarged sectional view showing a printing paper feeding device according to the present invention.

Hereinafter, a preferred embodiment of a printing paper feeder according to the present invention will be described with reference to the drawings.

1 and 2 are side cross-sectional views showing a printing paper feeding device according to the present invention, Figure 3 is a front view showing a printing paper feeding device according to the present invention, Figure 4 is an exploded perspective view showing a duct of the printing paper feeding device according to the present invention. 5 is a partially enlarged sectional view showing a printing paper feeding device according to the present invention.

The printing paper feeding device 100 according to the present invention may remove the stake and the static electricity from the printing paper and then supply the printing paper to the printing machine 10 to obtain a high quality printed matter, and to prevent the failure of the printing machine 10. 1 to 3, the printing paper of the feed tray 110, the paper conveying roller 120, the paper feed roller 120 or the upper portion of the conveying unit 11 to transfer the conveying portion 11 of the printer 10 as shown in FIG. A brush 131 extending perpendicular to the paper direction and contacting the printing surface of the printing paper includes a stake removing roller 130 coupled to an outer circumferential surface and a motor 140 providing a rotational force to the stake removing roller 130. .

In addition, the duct 160, which is open downward and receives the stake removal roller 130 therein along the longitudinal direction, further includes a blower 170 that sucks air in the duct 160.

Therefore, the printing surface of the printing paper passed through the paper feed roller 120 to the conveying unit 11 is removed from the fine dust or equity that was swept with the brush 131 of the equity removing roller 130, and the fine dust or equity was removed. Is discharged to the outside through the duct 160 by the suction of the blower 170.

On the other hand, the static elimination end 151 is coupled along the lower end of the front side wall of the equity removal roller 130, the lower end corresponding to the lower end of the equity removal roller 130 in the duct 160, based on the printing direction of the printing paper. It includes more.

Therefore, the printing paper does not stick to the fine dust or the surroundings while the static electricity is removed through the static elimination end 151 and moved to the transfer unit 11.

Look at each one in detail.

The printing machine 10 is provided with a printing roll 15 for applying a pre-designed pattern to printing paper with ink of a predetermined color, and a conveying unit for conveying the printing paper transferred from the paper feeding device 100 in contact with the printing roll 15 ( 11).

The conveying unit 11 is provided with a conveying belt 13 which is wound around the first shaft 17, the second shaft 18, and the third shaft 19 to sequentially follow each axis.

The paper feed roller 120 transfers the printing paper provided from the paper feeding tray 110 toward the conveying belt 13 through the rotational force. The paper feeding roller 120 extends perpendicularly to the moving direction of the printing paper and feeds the paper feeding tray 110 based on the traveling direction of the printing paper. ) Is placed in front of.

The equity removal roller 130 is to provide a printing paper having a clean printing surface to the printer 10 by removing fine dust or equity of the printing paper, preferably, the paper feed roller 120 in parallel with the paper feed roller 120. Extending to the top of both ends of the rotary shaft is disposed on a vertical line coincident with both ends of the rotary shaft of the first shaft (17).

Accordingly, the printing paper pushed by the paper feed roller 120 passes between the equity removal roller 130 disposed up and down and the conveying belt 13 wound on the first shaft 17.

In addition, the stake removal roller 130 is connected to the motor 140 and the belt 141 provided to be spaced below and rotated by receiving the driving force of the motor 140.

At this time, the motor 140 preferably rotates the stake removal roller 130 in the same direction as the traveling direction of the printing paper, faster than the traveling speed of the printing paper.

A brush 131 is provided on the outer circumferential surface of the stake removing roller 130 to sweep one surface of the printing paper passing through the stake removing roller 130, that is, the printing surface.

In other words, when the motor 140 is driven to rotate the stake removing roller 130 in the same direction as the printing paper moving direction and faster than the printing paper moving speed, the coil 140 is wound around the stake removing roller 130 and the first shaft. The upper printing surface of the printing paper 12 passing between the conveying belts 13 is swept by the brush 131 rotating along the equity removing roller 130 to remove fine dust or stakes on the printing surface.

In this case, preferably, the brush 131 is further provided with a means for forcibly suctioning the fine dust or equity separated from the printing paper 12 to be discharged to the outside. For this purpose, the duct 160 and the connection pipe 171 are provided. The blower 170 further includes a blower 170 connected to the duct 160 and sucking air in the duct 160.

The duct 160 moves air around the stake removing roller 130 to the outside, and preferably extends along the longitudinal direction above the stake removing roller 130 as shown in FIG. 3.

At this time, the duct 160 is longer than the lengthwise length of the stake removal roller 130 and has a length of the stake removal roller 130 to have a planar area receiving the stake removal roller 130 therein in the form of an open rectangular parallelepiped. The width is wider than the width perpendicular to the direction.

In addition, more preferably further includes a frame 150 extending downward along both lower ends of the longitudinal direction of the duct 160 and blocking the front and rear of the stake removal roller 130 based on the traveling direction of the printing paper. .

At this time, the lower end of the frame 150 extends on the horizontal plane is raised a predetermined height than the horizontal plane passing through the lower end of the stake removal roller 130. This is to ensure that the lower end of the static elimination stage 151, which will be described later, mounted on the lower end of the frame 150, is placed on a horizontal plane coinciding with the brush tip of the lower portion of the equity elimination roller 130 and properly abuts with the printing surface of the printing paper. For sake.

The frame 150 may be preferably provided at the front and rear of the stake removing roller 130 based on the traveling direction of the printing paper, but may be disposed only in front of the stake removing roller 130.

Therefore, the fine dust or the like removed from the printing paper by the brush 131 of the stake removal roller 130 is trapped between the frame 150 blocking the front and rear of the stake removal roller 130, and the blower 170 ) Is operated to suck the air in the duct 160, the fine dust or stake trapped between the frame 150 is discharged to the outside along the flow of air discharged to the outside along the duct 160 and the connection pipe 171 do.

On the other hand, the duct 160 has a structure in which the frame 150 is omitted by directly accommodating the stake removal roller 130 to the inside to more effectively suck and release the air around the stake removal roller 130 as shown in FIG. Can be seen.

Therefore, the equity removal roller 130 is accommodated along the longitudinal direction into the duct 160 to which the lower portion is opened and the connecting pipe 171 is connected to the opening 162 through one of the longitudinal ends 161.

At this time, the equity removal roller 130 is disposed so that the bottom is placed on a horizontal plane coinciding with the bottom of the duct 160 and coupled to the brush 131 and the bottom of the duct 160 coupled to the outer circumferential surface of the equity removal roller 130 Static elimination stage 151 is extended downward to the corresponding length.

In addition, the blower 170 may be a sound pressure blower that sucks air.

As such, the fine dust or the like of the printing paper is removed through the stake removing roller 130 and the duct 160, and then discharged to the outside. Preferably, the static electricity generated in the printing paper further includes an electrostatic removing step 151. It is preferable to remove.

This is to prevent the fine dust or stake floating on the printing paper from sticking back through the generated static electricity and to increase the reliability of printing.

As the static elimination stage 151, a self-discharge type antistatic brush is preferably used.

In general, static electricity is the neutralization of static electricity charged on an object using ions. The ions generated from the static electricity are charged with the charged charge and the opposite polarity of the charged charge is transferred to the charged material. By neutralizing.

Such static eliminators are classified into three types according to the method of generating ions required for static elimination: voltage application, self-discharge, and radiation.

The self-discharge type is a device that generates the ions necessary for static elimination by using the electrostatic energy of the object to be discharged, and concentrates the electric field generated by the electrical action of the electric charge on the needle-shaped grounded ground. The gas is ionized to obtain the ions necessary for static elimination. Therefore, it is very convenient to install and use because it is composed of only the static elimination electrode of simple structure without the need of power.

In other words, the self-discharge static eliminator approaches a charged thin conductor to the charged material to form a strong unbalanced electric field on both sides, thereby generating ions in the air surrounding the charged material to neutralize the charged charge of the charged material.

Therefore, the antistatic brush applied to the present invention uses a conductive yarn (carbon, SUS, acrylic, etc.) as a kind of such a self-discharge static eliminator.

If the antistatic brush is installed to be in contact with the surface of the printing paper to bend a lot, the static electricity can be reversed. Therefore, it is preferable that the end of the antistatic brush is positioned so as to be in light contact with the surface of the printing paper.

The above description is only a preferred embodiment of the present invention, and there may be various modifications. However, if these modifications are included in the technical spirit of the present invention will be within the scope of the present invention, the scope of the present invention can be easily understood by those skilled in the art through the following claims.

10: printing machine 11: transfer unit
12; Printing paper 13: Transfer belt
15: printing roll 17: first axis
18: 2nd axis 19: 3rd axis
100: feeder 110: feeder
120: paper feed roller 130: stake removal roller
131: brush 140: motor
141: belt 150: frame
151: static elimination stage 160: duct
161: both ends 162: opening
170: blower 171: connector

Claims (4)

A paper feed roller which transfers the printing paper of the paper feeder to the conveying part of the printer;
An equity removal roller, which extends perpendicularly to the advancing direction of the printing paper and is attached to an outer circumferential surface of the paper feed roller or the transfer unit, perpendicular to the traveling direction of the printing paper; And
And a motor for providing rotational force to the stake removing roller.
The method according to claim 1,
A duct opening downward and accommodating the stake removing roller in the longitudinal direction; And
And a blower for sucking air in the duct.
The method according to claim 2,
And a static electricity elimination stage coupled to a lower end of the front sidewall of the stake removing roller based on a traveling direction of the printing paper among the ducts, the lower end of which extends to correspond to the bottom of the stake removing roller.
The method according to claim 1,
And the motor rotates the stake removing roller in the same direction as the traveling direction of the printing paper and faster than the moving speed.

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