CN2282495Y - Paper conveying controller - Google Patents

Abstract

The utility model relates to a paper conveying controller, which comprises a paper conveying roller group which comprises at least one upper roller and one lower roller, and a paper pressing iron rod, wherein, the pivoted portion of which is slightly higher than the paper conveying portion of the paper conveying roller group. When the paper conveying roller group conveys paper from a paper conveying mouth, the front edge of the paper touches the paper pressing iron rod; the paper pressing iron rod is pushed off; the paper passes through the lower part of the paper pressing iron rod. After the paper is conveyed out, the lower end of the paper pressing iron rod presses downwards the tail end of the paper; the tail end of the paper is pushed off the paper roller group; the paper falls on a paper stacking groove by gravity. The paper conveying controller makes scanned paper tidily stacked on the paper stacking groove. The specification of the lower roller of the paper conveying roller group is the same to that of the lower roller of a paper feeding roller group. The production cost is decreased.

Description

The paper delivery control device

The utility model relates to a kind of automatic carriage that is used for business machines such as scanner, facsimile machine, printer or duplicator; Be meant an a kind of paper delivery control device that is used for this type of automatic carriage especially, after finishing scanning imaging system, it can be delivered to a stacker Zhang Yici in the heap paper groove of paper delivery place, and paper fitly is stacked on the heap paper groove.

Used automatic carriage generally comprises an at least one paper-feed group and a paper delivery roller set in the business machines such as scanner, facsimile machine, printer or duplicator; Wherein the paper-feed group is in order to send into a stacker Zhang Yici on the one scan position in the sweep mechanism, the paper delivery roller set then is pulled away from scanning position in order to the paper with been scanned and sends outside the body, is placing on the heap paper groove of paper delivery place with the paper sheet stacking with been scanned.The general basic demand that this automatic carriage is designed is for fitly being stacked on the paper of been scanned on the heap paper groove of paper delivery place.

See also Fig. 1, it is the schematic side view that is used for the existing automatic carriage in the scanner.This automatic carriage comprises a paper-feed group 110 and a paper delivery roller set 120; Wherein this paper-feed group 110 comprises an at least one upper roller 111 and a bottom roller 112, in order to a paper S is sent into the one scan position P in the sweep mechanism, this paper delivery roller set 120 then comprises an at least one upper roller 121 and a bottom roller 122, be pulled away from scanning position P and send outside the body in order to paper S, be stacked in paper S among a pile paper groove T of this paper delivery roller set 120 paper deliveries place below been scanned with been scanned.Paper S is by on the scanning position P time, and the content on it can be converted into digital form through the one scan program.Because sweep mechanism and program used herein all adopts prior art, and irrelevant with the utility model, so will not describe in detail in this specification.

Paper S is after passing through scanning position P, and its leading edge will be subjected to 120 drawings of paper delivery roller set and outwards send, and after paper S safety was sent this paper delivery roller set 120, paper S just can be stacked on the heap paper groove T.

But paper S is after being sent this paper delivery roller set 120 fully, and but regular meeting still is retained in rolling on the face of bottom roller 122 in the paper delivery roller set 120 because of its tail end.Until follow-up paper is when paper delivery place of this paper delivery roller set 120 is sent, be retained in the paper tail end that bottom roller 122 rolls on the face and just can be pushed by follow-up paper leading edge, leave the face that rolls on the bottom roller 122 fully.But in this propelling movement process, paper S is pushed leaves heap paper groove T, it can't be stacked on the Ying Chu position, the result is stacked on the paper groove T paper of been scanned pell-mell.As addressing this problem, then need a kind of can during in paper delivery place that is sent fully in this paper delivery roller set 120, the paper tail end being pulled away at the paper of been scanned, do not make the paper tail end be trapped in method on the bottom roller 122 in the paper delivery roller set 120.Solution has two kinds with the known method of the problems referred to above, respectively as shown in Figures 2 and 3.

See also Fig. 2, first kind of known workaround is provided with a circle ratchet shape jut 122a respectively for the two ends that the bottom roller 122 in paper delivery roller set 120 rolls face.At the paper of been scanned when being sent paper delivery place of this paper delivery roller set 120 fully, but the rotation that this paper delivery roller set 120 of the jut 122a mat of these ratchet shapes continues, the paper tail end be retained in bottom roller 122 in the paper delivery roller set 120 roll on the face time, the paper tail end is promoted, and the paper tail end dialled the face that rolls from bottom roller 122, paper tail end mat gravity is dropped on the heap paper groove T.

Above-mentioned solution has following shortcoming, and at first, set ratchet shape jut 122a makes roller make difficulty on its roller 122, and production cost increases; Have, the ratchet shape jut 122a that is provided with on the bottom roller 122 makes the manufacturing specification of bottom roller 122 different with the manufacturing specification of bottom roller 112 in the paper-feed group 110 again, and production cost can't reduce; Ratchet shape jut 122a on the bottom roller 122 in the paper delivery roller set 120 can cause the paper vibrations when promoting the paper tail end, these vibrations can be sent to scanning position P, and the quality of scan-image is affected.

See also Fig. 3, second kind of known workaround rolls for bottom roller 122 in paper delivery roller set 120 that two ends are provided with the flange 122b that a chart mask has great friction coefficient respectively on the face.This flange 122b can add sponge material, uses the coefficient of friction that increases flange 122b surface.Work as been scanned, paper S is when paper delivery place that is sent fully in paper delivery roller set 120, but these flanges 122b mat paper delivery roller set 120 continue to rotate with and surperficial great friction coefficient, the paper tail end be retained in bottom roller 122 in the paper delivery roller set 120 roll on the face time, the paper tail end is promoted with frictional force, thereby the paper tail end is dialled the face that rolls from bottom roller 122, paper tail end mat gravity is dropped on the heap paper groove T.

Yet above-mentioned solution also has similar shortcoming, and promptly set flange 122b makes roller make difficulty on the bottom roller 122, and production cost increases; And to use the manufacturing specification of bottom roller 122 in the paper roller group 120 different with the manufacturing specification of bottom roller 112 in the paper-feed group 110 for set flange 122b on the bottom roller 122, and production cost can't reduce.

The purpose of this utility model is to provide a kind of paper delivery control device, and it can fitly be stacked in the paper through overscanning on the heap paper groove of paper delivery end.

The purpose of this utility model is achieved in that promptly provides a kind of paper delivery control device that is used for automatic carriage, and it comprises: a paper delivery roller set comprises an at least one upper roller and bottom roller that paper is taken out of from described automatic carriage; The platen iron, have a pivot end and a free end, the articulated section of described pivot end is a little more than paper delivery place that goes out described paper delivery roller set, and described free end mat gravity pressure places the face that rolls of described paper delivery roller set bottom roller, and described platen iron free end is promoted and pressed down the tail end of paper by paper.

The advantage of the utility model device is, fitly is stacked on the heap paper groove T of paper delivery end through the paper of overscanning, and the manufacturing specification of the manufacturing specification of its bottom roller and paper-feed group bottom roller is identical, and production cost significantly reduces.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

Fig. 1 is the schematic side view of existing automatic carriage;

Fig. 2 is the front-view schematic diagram of automatic carriage among Fig. 1;

Fig. 3 is the front-view schematic diagram of another existing automatic carriage;

Fig. 4 A-4C illustrates three operational phases of paper from paper feed to paper delivery for the front-view schematic diagram of the automatic carriage of use the utility model paper delivery control device;

Fig. 5 is the front-view schematic diagram of paper delivery control device shown in Fig. 4 A-4C.

See also Fig. 4 A-4C, three schematic diagrames that it illustrates the automatic carriage of configuration the utility model paper delivery control device illustrate three operational phases of paper S from paper feed to paper delivery respectively.Shown in Fig. 4 A, this automatic carriage comprises a paper-feed group 310 and a paper delivery roller set 320; Wherein this paper-feed group 310 comprises an at least one upper roller 311 and a bottom roller 312, in order to paper S is sent on the one scan position P in the scanner; 320 of paper delivery roller set comprise an at least one upper roller 321 and a bottom roller 322, in order to paper S be pulled away from scanning position P and send outside the scanner, are stacked in the pile with been scanned on a pile paper groove T of paper delivery place below.

One platen iron 330 is set in paper delivery place of paper delivery roller set 320 of the present utility model, and it has a pivot end 330a and a free end 330b; Pivot end 330a is articulated on the housing of scanner, and its pivot points is a little more than paper delivery place of paper delivery roller set 320, and when free end 330b was applied thereto in no external force, the mat gravity pressure placed rolling on the face of paper delivery roller set 320 bottom rollers 322.In an embodiment, as shown in Figure 5, this platen iron 330 is a nearly U-iron bar, and its two ends are above-mentioned pivot end 330a, and the stage casing is above-mentioned free end 330b.The weight of platen iron 330 is decided according to the weight of scanning paper; The scanning paper is heavier, and platen iron 330 is also heavier.For general office paper commonly used, the preferable weight of platen iron 330 is between 2 to 6 grams.

Shown in Fig. 4 B, when paper delivery roller set 320 with paper S when its paper delivery place is sent, the leading edge of paper S can be touched platen iron 330, and then be that rotating shaft is pushed open left with pivot end 330a with platen iron 330 free end 330b, make the below of paper S, slowly send from paper delivery roller set 320 places by platen iron 330.

For another example shown in Fig. 4 C, after paper delivery roller set 320 is sent paper S fully, the tail end that is paper S is just when the paper delivery of paper delivery roller set 320 is sent, the free end 330b of platen iron 330 can press down tail end mat platen iron 330 weight of paper S own, frictional force between paper S and the bottom roller 322 is increased, therefore the tail end of paper S is pushed away paper roller group 320 easily by this bottom roller 322, again mat gravity and freely dropping on the heap paper groove T.

The configuration of mat platen iron 330, when in case paper S is sent the exit slot place of this paper delivery roller set 320 fully, just can push away paper delivery roller set 320 in whole ground, its tail end can not kept somewhere the rolling on the face of in paper delivery roller set 320 bottom roller 322, the paper after the scanning fitly is stacked on the heap paper groove T of paper delivery end.

In addition, because the bottom roller 322 in the paper delivery roller set 320 does not need additional designs, its manufacturing specification of making the bottom roller 312 of specification and paper-feed group 310 can be identical, and production cost reduces.

Claims (2)

1, a kind of paper delivery control device that is used for automatic carriage is characterized in that it comprises: a paper delivery roller set comprises an at least one upper roller and bottom roller that paper is taken out of from described automatic carriage; One platen iron, have a pivot end and a free end, the articulated section of described pivot end is a little more than paper delivery place of described paper delivery roller set, and described free end mat gravity pressure places the face that rolls of described paper delivery roller set bottom roller, and described platen iron free end is promoted and pressed down the tail end of paper by paper.

2, paper delivery control device as claimed in claim 1 is characterized in that, described platen iron be a nearly U-shaped and its weight between 2 to 6 the gram between iron.

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