KR100580916B1 - Apparatus for arranging rear part of paper - Google Patents

Abstract

The present invention provides a feed roller for conveying paper; A pair of support plates rotatable about a rotating shaft provided at the outer end, the inner end being configured to support both bottom ends of the sheet of paper conveyed; Rotating the support plate at an angle such that the outer circumferential surface is coupled to contact a part of the support plate and includes a cam for rotating the support plate at an angle through a rotating motion, and a motor for rotating the cam. It is configured to include; rotating means for aligning, regardless of the length of the paper, the rear end of all the paper can be aligned the same, and can prevent the front and rear and left and right positions are changed when the paper is loaded, the static electricity generated in the paper It is possible to provide a rear end sorting device which can prevent the paper from being blown or being blown.

Paper, Tail, Align, Load, Cam

Description

Rear end sorter {Apparatus for arranging rear part of paper}

1 is a cross-sectional view of a printer equipped with a conventional paper sorting device.

FIG. 2 shows a shape in which the paper loaded in the state shown in FIG. 1 is discharged.

Figure 3 shows the internal configuration of a printer equipped with a rear end alignment apparatus according to the present invention.

Figure 4 is a perspective view of a paper rear end alignment apparatus according to the present invention.

5 is a front view of the rear end sorting apparatus according to the present invention.

FIG. 6 illustrates a shape in which paper is loaded by rotating the support plate in the state shown in FIG. 5.

FIG. 7 shows a shape in which the stacked paper is drawn out in the state shown in FIG.

<Description of Symbols for Main Parts of Drawings>

100: feed roller 200: support plate

210: rotating shaft 220: spring

300: rotation means 310: cam

320: motor 330: reduction gear

400: brush 410: antistatic seam

500: Sensor

The present invention relates to a paper aligning device applied to an apparatus having a paper conveying function, such as a printer or a copying machine, and more particularly, to detect the rear end position of the fed paper and to convey the rear end of each sheet at the same point. And a paper rear end sorting device configured to be dropped downwards and then loaded.

Hereinafter, a conventional paper sorting apparatus will be described with reference to the accompanying drawings.

1 is a cross-sectional view of a conventional printer.

As shown in FIG. 1, a conventional conventional printer extracts the paper P from the tray 10, prints it with the print head 20, cuts the cutter P into an appropriate length, and then uses the paper sorting device. Align the paper (P).

At this time, the conventional paper sorter, the paper guide 40 for guiding the conveying path of the paper P cut by the cutter 30, and the conveyance for transporting the paper (P) to the upper portion of the discharge roller 60 It is comprised including the roller 50.

In addition, the printer is provided with a paper guide 40 for guiding the conveying direction of the paper in the path where the paper P is conveyed, and closely adheres the paper loaded on the upper surface of the discharge roller 60 to the discharge roller 60. Pressing portion 70 to be provided is further provided. At this time, the paper (P) which is conveyed to the upper side of the discharge roller 60 through the feed roller 50 is loaded on the upper surface of the discharge roller 60 in a free-falling manner.

Therefore, the paper P loaded on the upper surface of the discharge roller 60 is not aligned neatly under the influence of frictional force with the internal parts of the printer, the flow of air, various dusts and static electricity, and irregularly as shown in FIG. 1. Aligned.

In particular, when the size of the paper P is cut differently according to the printing amount, such irregular alignment is remarkably generated.

FIG. 2 shows a shape in which the paper loaded in the state shown in FIG. 1 is discharged.

As shown in Figure 2, the upper portion of the discharge roller 60, the pressing portion 70 which is movable in the vertical direction in order to closely adhere the paper (P) loaded on the upper surface of the discharge roller 60 to the discharge roller 60. Is provided, the paper (P) is completed loading is in close contact with the discharge roller 60 by the pressing portion 70 is moved downwards and is discharged so that a part of the rear end by the discharge roller 60 protrudes out of the printer. .

The user acquires the paper P by pulling out a portion of the paper P protruding out of the printer, and as shown in FIG. 2, when the alignment of each paper P is irregular, the rear end is moved out of the printer. Since the paper P that does not protrude is generated, there is a disadvantage that a case where all the paper P cannot be obtained also occurs.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a paper rear end alignment device for aligning a paper so that the rear end of the paper is aligned.

A paper rear end alignment device according to the present invention for achieving the above object includes a feed roller for conveying paper; A pair of support plates rotatable about a rotating shaft provided at the outer end, the inner end being configured to support both bottom ends of the sheet of paper conveyed; And rotating means for rotating the support plate at an angle so that the sheet may or may not hang over the support plate.

At this time, the rotating means, the outer circumferential surface is coupled to a portion of the support plate, the cam to rotate the support plate by a predetermined angle through the rotating motion; And a motor for rotating the cam.

In addition, the paper rear end alignment device further includes a spring for applying an elastic force to the support plate so that the support plate is in close contact with the cam, and the contact means for closely contacting the paper with the support plate so that the paper seated on the upper surface of the support plate does not flow.

At this time, the contact means is applied to the brush having a seam to adhere the paper to the support plate, the seam is preferably applied to the antistatic seam formed of a material capable of preventing the static electricity generated in the paper.

In addition, the paper rear end alignment apparatus according to the present invention is coupled to the opposite side of the feed roller to which the support plate is coupled, the sensor for detecting the passing of the rear end of the paper to generate a paper position signal; It is further provided with a control unit for operating the rotating means so that the support plate does not support the paper when the rear end of the paper passes the feed roller by receiving the paper position signal.

Hereinafter, an embodiment of a paper rear end alignment device according to the present invention will be described with reference to the accompanying drawings.

Figure 3 shows the internal configuration of the printer is equipped with a rear end alignment apparatus according to the present invention, Figure 4 is a perspective view of the rear end alignment apparatus according to the present invention.

Since the tray 10, the print head 20, the cutter 30, the paper guide 40, the discharge roller 60, and the pressing unit 70 illustrated in FIG. 3 are the same as those applied to a conventional printer, Detailed description thereof will be omitted.

3 and 4, the rear end sorting apparatus according to the present invention includes a feed roller 100 for transferring the paper P introduced through the paper guide 40 to an upper portion of the discharge roller 60. Wow; It is rotatable about a rotating shaft 210 provided at the outer end, and the inner end is configured to support the bottom end of both ends of the paper (P), the pair of support plates coupled to the upper left and right sides of the discharge roller 60 200; It comprises a rotating means 300 for rotating the support plate 200 at an angle so that the paper (P) can be over or not across the support plate 200.

In the present embodiment, the support plate 200 is manufactured and applied as a flat plate bent in a step shape, but if the support plate 200 is a shape capable of supporting the paper (P), such as a flat plate without bending or a flat plate having a curved surface It may be changed and applied.

Rotating means 300, the outer circumferential surface is coupled to contact a portion of the support plate 200, the cam 310 for rotating the support plate 200 by a predetermined angle through the rotational movement, and the motor 320 for rotating the cam 310 And a reduction gear 330 which reduces the rotational speed of the motor 320 and transmits the same to the cam 310. At this time, the reduction gear 330, if the rotational speed of the motor 320 is excessively high to reduce the reduction ratio may be applied to two or more pieces, and if the rotational speed of the motor 320 is low to reduce the need for omission. Can be.

In addition, the paper rear end sorting device includes a spring 220 for applying an elastic force to the support plate 200 so that the support plate 200 is in close contact with the cam 310, and the paper so that the paper seated on the upper surface of the support plate 200 does not flow. The brush 400 further includes an antistatic seam 410 coupled to the support plate 200.

At this time, the anti-static seam 410 is formed of a material that can prevent the static electricity generated in the paper (P), the paper (P) is stuck to the support plate 200 or other internal parts of the printer by the static electricity. prevent.

In addition, the paper rear end alignment device according to the present invention is coupled to the opposite side of the feed roller 100 to which the support plate 200 is coupled, a sensing sensor for detecting the passage of the rear end of the paper (P) to generate a paper position signal 500; When the rear end of the paper (P) passes the feed roller 100 by receiving the paper position signal is provided with a control unit (not shown) for operating the rotating means 300 so that the support plate 200 does not support the paper (P) do. The control unit drives the feed roller 100 until the rear end of the paper P passes through the feed roller 100 when it is input that the rear end of the paper P is located at the detection point of the detection sensor 500. After the rear end of the paper P passes the feed roller 100, the motor 320 is rotated to lift the support plate 200 so that the paper P is loaded on the upper surface of the discharge roller 60.

Therefore, when the paper rear end alignment device according to the present invention is used, the rear end can be equally aligned even if the lengths of the respective papers P are different.

Figure 5 is a front view of the rear end alignment apparatus according to the present invention, Figure 6 shows a shape in which the paper is loaded by rotating the support plate in the state shown in FIG.

As shown in FIG. 5, the support plate 200 is divided in the direction in which the discharge roller 60 is positioned in a state in which an outer circumferential surface of the cam 310 contacts the bottom surface of the support plate 200. The paper P conveyed to the rear end alignment device of the sheet is seated on the inner end upper surface of the support plate 200 and is prevented from shaking in the left and right and up and down directions by the brush 400.

When the motor 320 is rotated in the state shown in FIG. 5 and the outer circumferential surface of the cam 310 in contact with the bottom surface of the support plate 200 is supported, the support plate 200 is rotated to be erected in the vertical direction by being pushed by the cam 310. When the pair of support plates 200 rotate so that the horizontal distance between the inner ends is wider than the width of the paper P, as shown in FIG. 6, the paper P is the upper surface of the discharge roller 60. Will fall.

At this time, the paper (P) falling to the upper surface of the discharge roller 60, because the front and rear and left and right positions are fixed by the elasticity of the antistatic seam 410 of the brush 400 is loaded more stably than when free falling.

In this embodiment, the cam 310 is coupled so as to contact the bottom surface of the support plate 200 to explain the structure in which the support plate 200 is rotated to stand, but the structure of the rear end alignment apparatus according to the present invention is not limited thereto. It can be applied in various ways. For example, the cam 310 may be coupled to be in contact with the top surface of the support plate 200, and thus may be changed to a structure in which the support plate 200 is rotated downward.

FIG. 7 shows a shape in which the stacked paper is drawn out in the state shown in FIG.

When the paper P loaded so that the rear end is aligned is discharged to the outside of the printer by the pressing unit 70 and the discharge roller 60, the end of each paper (P) protruding out of the printer as shown in FIG. Since it is kept evenly aligned, the user can more easily acquire all the papers P protruding out of the printer.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment and should be interpreted by the attached claim.

In particular, the paper rear end sorting apparatus according to the present invention can be applied to not only the printer described in the present embodiment but also various apparatuses for which paper alignment such as a copy machine and a facsimile is required.

In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

The rear end sorting device according to the present invention can align the rear ends of all papers irrespective of the length of the paper, and can prevent the front, rear, left and right positions from changing when the paper is loaded, and generate static electricity on the paper. It is an advantage that can prevent the phenomenon or paper blowing.

Claims (7)

A feed roller 100 for feeding the paper P; A pair of support plates (200) rotatable about a rotation shaft (210) provided at an outer end and configured to support bottom ends of both ends of the paper (P) to which the inner end is transferred; Rotation means (300) for rotating the support plate (200) at an angle so that the paper (P) may or may not span the support plate (200); A detection sensor 500 coupled to an opposite side of the feed roller 100 to which the support plate 200 is coupled and generating a paper position signal by detecting that the rear end of the paper P passes; The rotation of the support plate 200 does not support the paper P when the rear end of the paper P passes the feed roller 100 by receiving the paper position signal generated from the sensor 500. A control unit for operating the means 300; Paper rear end sorter characterized in that comprises a. The method of claim 1, The rotating means 300, An outer circumferential surface is coupled to be in contact with a part of the support plate 200, and a cam 310 for rotating the support plate 200 at an angle through a rotating motion; A motor 320 for rotating the cam 310; Paper rear end sorter characterized in that comprises a. The method of claim 2, The cam 310 is, An outer circumferential surface is coupled to contact the bottom of the support plate 200; The pair of support plates 200, When the outer circumferential surface of the cam 310 contacts the bottom surface, the inner ends of the cam 310 are rotated in a direction closer to each other so that the paper P can be seated thereon. When the long axis outer peripheral surface of the cam 310 in contact with the bottom surface rear end sorting device characterized in that the structure is rotated so that the distance between the inner end is farther than the width of the paper (P). delete delete delete The method of claim 2 or 3, The support plate 200 is a paper rear end sorting device having a spring 220 for applying an elastic force to the support plate 200 to be in close contact with the cam 310.

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