CN1980845B

CN1980845B - Document alignment and feed device and device for detecting presence or/ and alignment status

Info

Publication number: CN1980845B
Application number: CN2005800216217A
Authority: CN
Inventors: S·乌杰蒂; G·斯卡顿
Original assignee: Telecom Italia SpA
Current assignee: Shenzhen Win Win Innovation Polytron Technologies Inc
Priority date: 2004-06-30
Filing date: 2005-06-14
Publication date: 2010-12-01
Anticipated expiration: 2025-06-14
Also published as: CN1980845A; WO2006002752A1; ITTO20040444A1; EP1776303A1; EP1776303B1

Abstract

Device (105) for the alignment and feed of documents (46) along a feeding plane (10, 47) comprising a set of rollers (15) and opposed counter-rollers (14) and optical means for detecting the presence and alignment of the document (46). The optical means include light sources (59, 63) and photodetectors (61, 64) arranged on a given half plane (47) of the feeding plane, and light transmitting elements (106, 107) positioned between the light sources and the photodetectors, and associated with a guide plate (48) arranged on a half plane opposite to the feeding plane and the document (46) being adapted to interrupt the light beam between the light sources (59, 63), the light transmitting elements (106, 107), and the photodetectors (61, 64). The light transmitting elements include pre-shaped optical guides (106, 107) having ends (120a, 12b, 12a, 121b) substantially flush with a lower surface (41) of the plate guide (48).

Description

The existence of document alignment and feed arrangement and detection sheet material and/or the device of alignment

Technical field

The present invention relates to a kind of document alignment and feed arrangement.

More precisely, the present invention relates to a kind of file that is used for chopping machine, for example resemble the aligning and the feed arrangement of sheet material or analogue.

The invention still further relates to a kind of existence of the sheet material that detects file and/or the device of alignment

Background technology

Document alignment and feed arrangement are installed on the chopping machine that is mainly used in banking business, at Ing.Olivetti﹠amp by Olivetti-Tecnost S.p.A company; This document alignment and feed arrangement have been described in some aspect in the US Patent 5,947,471 that C.S.p.A company proposes.Utilization is arranged on light source (light-emitting diode) on the same part of areal of support and photoelectric detector and optical fiber and detects the existence of file, if there is not file, optical fiber resends light beam from light source to photoelectric detector.

The type of optical fiber for obtaining on market usually, it is inserted in the bearing of the opposite side that is located at areal of support.This device is very effective.But, but have the danger that fiber may be pulled out in its bearing., in printer test, must test for this reason, and can not test this device in advance, need not the teardown of engine when going wrong in the light connection with this to device.In the maintenance process of standard printer, also there is the danger of pulling out in its bearing of fiber buddle.

And bearing also relates to the danger of gathering paper scrap and other dirt, because they can have a negative impact to the performance of device.

Summary of the invention

Technical matters of the present invention provides a kind of document alignment and feed arrangement, and wherein, the light transmission between light source and the detector is reliable in mode, expense is rationally carried out.

Another problem of the present invention is to obtain a kind of document alignment and feed arrangement, and this device can be independent of employed equipment and carry out the failure-free test, like this, needn't get up for test and device assembles.

Sheet alignment of the present invention and feed arrangement comprise: at least one light source and a corresponding photoelectric detector, and they are arranged on the same side on feeding plane; At least one optics connects the light transmission component of described light source and described photoelectric detector, it is arranged on the relative side with respect to the described light source on described feeding plane and photoelectric detector, wherein, described sheet material is suitable for interdicting the light beam between described light source, described light transmission component and the described photoelectric detector.

Device along feeding planar alignment and feeding sheet material of the present invention comprises:

The roller of-traction piece material and relative reverse rollers,

-at least one light source and a corresponding photoelectric detector, described light source and photoelectric detector are arranged on the homonymy on feeding plane,

-optics connects the light transmission component of described light source and described photoelectric detector, and it is arranged in respect to the described light source on described feeding plane and the opposite side of photoelectric detector, and is associated with guide plate,

Wherein, described sheet material is suitable for interdicting the light beam between described light source, described light transmission component and the described photoelectric detector, wherein,

Described transfer element comprises the photoconduction of preformed plastics, and these photoconductions have the end with the basic positioned flush of lower surface of guide plate.

The invention still further relates to a kind of existence of the sheet material that is used to detect file and/or the device of alignment, this device comprises the light transmission component that is arranged between light source and the photoelectric detector, file is suitable for interdicting the light beam between light source, light transmission component and the photoelectric detector, described device is characterised in that, light transmission component comprises the photoconduction of preformed plastics, sealing arrangement is set, makes with photoconduction and match, so that described photoconduction is sealed securely with respect to the bearing of pre-qualification.

Preferably, a described light transmission component and a guide plate associated, and comprise that preformed photoconduction, photoconduction have with the lower surface of guide plate and be in the end that flushes substantially.

Preferably, described end is arranged in the bearing of described guide plate, towards the described feeding plane at light source and corresponding light photodetector place thereof.

In a preferred embodiment, described end is with respect to the distance of the recessed 0.0-0.2 millimeter of described lower surface scope.

In a preferred embodiment, the described photoconduction that aligning is worked partly is encapsulated in the single block.

Preferably, described alignment optical guides has the arm of strap end portion, and this end is given prominence to and is inserted in the bearing of guide plate from described block.

In a preferred embodiment, described photoconduction and described guide plate are molded together.

Preferably, described photoconduction has the end with respect to this photoconduction other parts undergauge, and its formation is positioned at the contacted shoulder of ladder that the bearing with guide plate forms.

Preferably, the inventive system comprises a sealing member, it is suitable for matching with described photoconduction, with respect to described guide plate photoconduction is sealed (block).

In a preferred embodiment, described photoconduction passes through by the molded acquisition of the plastic material of highly transparent.

From with reference to the accompanying drawings, will be expressly understood feature of the present invention the explanation that provides as the indefiniteness example.

Description of drawings

Fig. 1 illustrates the document alignment of known type and the perspective illustration of feed arrangement;

Fig. 2 illustrates the scheme drawing in conjunction with the parts of device operation shown in Figure 1;

Fig. 3 illustrates the document alignment of known type and the constructed profile of feed arrangement;

Fig. 4 illustrates the constructed profile of document alignment of the present invention and feed arrangement;

Fig. 4 a is the enlarged detail of device shown in Figure 4;

Fig. 5 is the anterior perspective illustration of device shown in Figure 4;

Fig. 6 for device shown in Figure 4 after cut open perspective illustration;

Fig. 7 and 8 illustrates the enlarged drawing of thin portion shown in Figure 6;

Fig. 9 illustrates the transparent view of the modification of device shown in Figure 4;

Figure 10 illustrates the constructed profile of Fig. 4 modification;

Figure 10 a is the enlarged detail of device shown in Figure 10;

Figure 11 and 12 illustrates the transparent view of two thin portions among Figure 10; And

Figure 13 illustrates the schematic plan view of device shown in Figure 10.

The specific embodiment

Fig. 1 illustrates US Patent 5,947, the alignment device described in 471, and its Reference numeral is identical.This device comprises: the supporting and the feeding plane 10 of one group of roller 15 and 14, one paper files of reverse rollers (counter-rollers); An encumbrance (hindering bar) 16 and the

motor reel

12 and 13 that is respectively applied for roller 15 and reverse rollers 14, electrical motor is synchronized with each other, is separately positioned on the following and top on plane 10.

Roller 15 is keyed on the axle 12, and passes slit 11 and give prominence on plane 10, with the downside of conflict file.Reverse rollers 14 is made of pair roller 32 and 33, and wherein, roller 32 is keyed on the axle 13, and has the traction surface of great friction coefficient, and roller 33 then has bigger diameter and low friction coefficient.Roller 33 is supported by elastic spokes 36 by the hub of roller 32, and by roller 32 friction-driven.

Encumbrance 16 is positioned at the downstream of axle 13, is in the position that reduces with respect to plane 10 usually, when being imported into convenient file it is detained, and is suitable for along with the startup of

motor reel

12 and 13 is risen together.

Some parts that uses in the alignment device on the chopping machine that Fig. 2 and the 3 schematically illustrated Olivetti-Tecnost of being installed in S.p.A companies make, this device is represented with mark 44 here.These parts help the existence and the successive alignment thereof of test paper file 46, and are connected with not shown suitable electronic control package.

In device 44, supporting and feeding plane are limited by slide plate 47, this slide plate and guide plate 48 associated that are positioned at its top, and the space 46 of qualification file movement.Plate 48 is made of plastics, and has cross rib 51 and at the edge 49 at rear portion.Plate 48 also comprises the ribbing 53 and the little shoulder 52 at the edge 49 that is used for axle 13 location.Encumbrance is the comb type, represents with mark 57.This encumbrance has by the side etcetera (appendixes) of slit guiding on the plate 47 and is arranged on tooth between paired reverse rollers 14 and the ribbing 53, and is provided with the rear surface at edge 49 tangently.Imagine six pair rollers 15 and reverse rollers 14.

Detect the existence of file by two pairs of light-emitting diodes 59 and photoelectric detector 61 and two optical fiber 62, and detect aligning by four pairs of light-emitting diodes 63 and photoelectric detector 64 and four optical fiber 66.Light-emitting diode 59 and 63 and photoelectric detector 61 and 64 be arranged on the lower half-plane on feeding plane 10, be installed on the plate 47 in the suitable opening.Optical fiber is arranged on the upper half of plane on plane 10.

Optical fiber

62 and 66 is commercial type, is made of transparent plastic core and opaque sheath.Fiber 62 and 66 is bent to the degree that its flexibility allows, and its end is inserted in bearing 67 and 68.Bearing 67 is formed in the pillar vertically outstanding on the slave plate 48, and bearing 68 is formed in the ribbing 53 at edge 49.

Optical fiber

62 and 66 end are respectively facing to the opening 69 and 71 of bearing 67 and 68, with be provided with light-emitting diode 59 and 63 and the opening of photoelectric detector 61 and 64 aim at, and be inserted in bearing 67 and 68, till leaning against on the ladder 65, this ladder with 68 contacts acquisition with 71 with bearing 67 by opening 69, and this bearing has ratio open 69 and 71 big width.Fiber optic axle is on the vertical substantially plane, and optical fiber itself is elastic variable, enables when reverse rollers 14 needs repairing, rises and extract out spools 13 from little shoulder 52.

According to the present invention as can be seen, the distance between the lower surface of ladder 65 and plate 14 is about 1 centimetre or more usually, thereby possibility accumulated debris, dust or similar substance, hinders correct light-emitting diode 59 and 63 signals that sent of receiving such as meeting.

In order to detect the existence of file, the two pairs of light-emitting diodes 59 and photoelectric detector 61 along with the line aligning of the parallel axes of

axle

12 and 13, be positioned at the upstream end a little of roller 15.

Relate to the four pairs of light-emitting diodes 63 and the photoelectric detector 64 of aiming at file and on plate 47, be arranged to delegation, be positioned at the downstream part a little of roller 15, and near the feeding plane of encumbrance 57.In addition, this is interlaced with one another with interlace mode to light-emitting diode 63 and photoelectric detector 64 and is in the same place.

Utilize photoelectric detector 61 to come detecting device 44 forwardly no matter the importing of the file 46 of any angle.In fact, light-emitting diode 59 is launched light beam 72 on perpendicular to the direction on plane 10, and this light beam is transferred to photoelectric detector 61 again by opening 69 and optical fiber 62.The file 46 blocking light beams 72 that import between

plate

47 and 48 are closed one or two photoelectric detector 61, thereby are started relevant control setup.

Trigger the rotation of roller 15 and reverse rollers 14 like this, cause file movement and aim to lean against on the encumbrance 57.In fact, the roller 33 of low-friction coefficient makes the edge that enters of file reach gradually to aim at and lean against on the encumbrance 57.

To have similar mode with the detection file, the edge blocking of the file 46 of aligning closes one or more photoelectric detectors 64 by one or more light-emitting diode 63 emitted light beams 73.When closing of a file that all photoelectric detectors 64 have all been aimed at, relevant control setup triggers by mechanical device encumbrance 57 is risen, and this does not also illustrate in each figure.

Simultaneously, other mechanism exerts pressure along 74 pairs of axles 13 of the direction shown in the arrow, and the roller 32 of great friction coefficient is shifted to file 46.Like this, file is pushed into high attachment level, and to the rear portion perfect alignment in the chopping machine.

Alignment device of the present invention represents wherein, have with the parts of device 44 identical functions and use identical mark with mark 81 in Fig. 4,5 and 6.

In device 81, the effective mark 59-1 of detection light-emitting diodes and the 59-2 that are used for the file existence represent that relative photoelectric detector is represented with mark 61-1 and 61-2.Alignment leds is represented with mark 63-1,63-2,63-3 and 63-4, and relative photoelectric detector is represented with mark 64-1,64-2,64-3 and 64-4.

The light beam 72 that is used to detect light-emitting diode 59 emissions of file 46 existence and be intended for photoelectric detector 61 is by photoconduction 82 transmission.The light beam 73 that is used to aim at light-emitting diode 63 emissions of file and be intended for photoelectric detector 64 is then by photoconduction 83 transmission.Photoconduction 82 and 83 is made by the plastic material of highly transparent, and its end is positioned at the front portion of relative leds and photoelectric detector,

According to the present invention,

photoconduction

82 and 83 is connected on the guide plate 48 and preform securely, makes them around reverse rollers 14, and axle 13 can be taken off easily.For example,

photoconduction

82 and 83 has square profile, and finishes with molded polycarbonate.

Photoconduction

82 and 83 has basic be horse-shoe shaped and bridge shape shape respectively, and when using, these photoconductions are arranged in around six pair rollers 32 and 33: two photoconductions 82 in the horizontal direction, four photoconductions 83 are in vertical substantially direction.

At length, (Fig. 5 and 7) is mutually the same for photoconduction 82, and each photoconduction has two by part 92 bonded

assembly arm

91a and 91b, and has folding towards the below two end 93a and 93b.Plate 48 between photoconduction 82 and rib 51 and the shoulder 52 be arranged in parallel.

End

93a and 93b are inserted in the bearing 84 of light-emitting diode 59-1 and 59-2 and photoelectric detector 61-1 and 61-2 fwd plate 48 (Fig. 5).

Arm

91a and 91b extend along direction 21, and part 92 is parallel with axle 13.

From anterior finder 81, in the photoconduction 82 that is first photoconduction traditionally, end 93a is arranged on the left side of second pair roller 32 and 33 along direction 21, and the other end 93b is arranged on the left side of the 3rd pair roller.In second photoconduction 82, end 93a is arranged on the right side of the 4th pair roller 32 and 33, and end 93b then is arranged on the right side of the 5th pair roller.

Photoconduction 82 is fixed on the plate 48 by the insertion that bonding or utilization act on the wedge 94 of part 92.Like this photoconduction 82 just be in axle 13 below, these photoconductions are surrounded as reverse rollers 14, and are taking off the possible track of Shi Buhui influence axle 13.

(Fig. 6 and 8) is also mutually the same for photoconduction 83, and each photoconduction has two by sweep part 97 bonded

assembly arm

96a and 96b and end 98a and 98b.Photoconduction 83 is arranged in the downstream of axle 13, and launches at the relative plate 48 of vertical direction.Arm 96 is inserted in the bearing 99 that forms in the ribbing 53, and its form is to make

end

98a and 98b towards following light-emitting diode 63 and photoelectric detector 64.

By rights, photoconduction 83 (seeing Fig. 9 equally) major part is encapsulated in the resin block 101 of shaping.Block 101 is positioned at above the paired reverse rollers 14, and has space 102 and recess 103 on every pair roller, so that reverse rollers can rotate, and is convenient to axle 13 extracts out when maintenance.

At length, block 101 whole package level connecting bridges 97, and partly, two arm 96a of each

optical fiber

83 and 96b are on the projection between the recess 103 104.

The arm 96a of each photoconduction 83 and the lower part of 96b stretch out below the projection 104 of block 101, and are inserted in ribbing 53 bearing 99 separately.Block 101 is by engaging or bonding being connected to securely on the edge 49 between the lower edge at edge 49 and the top edge.

Having eliminated about the solution that all is encapsulated in single block needs to intervene shortcoming and the consequential error that optical fiber inserts the back, and do not hinder to axle 13 with become pair roller 32 and 33 any possible maintenances.In addition, device 81 also can thoroughly be tested before being assembled on the premise equipment, and described assembly operation can not had a negative impact to its feature.

At length, each single photoconduction 83 is arranged in staggered mode around single pair roller 14.

With reference to Fig. 6, first photoconduction 83 launches from the axis of light-emitting diode 63-1, and its arm 96-a is positioned at the right side of first pair roller 32 and 33, then bent horizontal length 97 left, drop to the front of photoelectric detector 64-1 then with arm 96-b, be positioned at the left side of second pair roller.Second photoconduction 83 is from the axis of light-emitting diode 63-2, rises on the right side of second pair roller 32 and 33 with arm 96-a, and bent horizontal length 97 left then drops to the front of photoelectric detector 64-2 then with arm 96-b, be positioned at the left side of the 3rd pair roller.

The 3rd photoconduction 83 adopts the pattern with second photoconduction, 83 symmetries: promptly from light-emitting diode 63-3, rise to the right side of the 4th pair roller, and crooked left, drop to the front of photoelectric detector 64-3 again, be positioned at the left side of the 5th pair roller.At last, the 4th photoconduction 83 adopts the pattern with first photoconduction, 83 symmetries: promptly from light-emitting diode 63-4, its arm 96-a is positioned at the right side of the 5th pair roller, and bent horizontal length 97 left, drop to the front of photoelectric detector 64-4 then with arm 96-b, be positioned at the left side of the 6th pair roller 32 and 33.

According to the present invention,

photoconduction

82 and 83 is inserted in bearing 84 and 99, so that with its complete closed, prevents that any paper scrap and dust from entering in the opening, thereby anti-locking apparatus operation is malfunctioning.

Particularly, photoconduction 82 engages by bonding or use wedge 94 and is fixed on the plate 48, and photoconduction 83 is encapsulated in the block 101, and this block passes through joint or bonding connection again to edge 49.

Like this, can eliminate the ladder 65 (Fig. 6) that photoconduction is relied in this device in the prior art, make in the end 93a of photoconduction 82 and the bearing 84 that 93b can be inserted into plate 48 fully that (Fig. 4 a), its form is to make them can be at its entire depth inner sealing.

End

93a and 93b flush with the lower surface 41 of guide plate 48 basically, and this guide plate limits the space that file 46 moves with slide plate 47, and slave plate is not outstanding, to prevent to influence moving of file 46.

Term " basically with ... flush " meaning is,

end

93a and 93b must apparent surface 41 recessed distances D, this distance D for example can (Fig. 4 a) in 0.0 to 0.2 millimeter scope.To fully reduce distance D, influence the accumulation of chip, dust and other analogue of the correct optical function of device to prevent meeting.

Equally, the end 98a of

photoconduction

83 and 98b are arranged to flush with the lower surface 42 of ribbing 53 basically, and its advantage is, the mode of 42 profiles forms end 98a and 98b surfacewise, so that the importing of paper, the surface tilt of surface 42 relative guide plates 48.Guide plate 48 is made by opaque durable plastic material.In modification of the present invention,

photoconduction

82 and 83 and plate 48 self common molded, described photoconduction have the feature different with plate 48.

In another modification 105 (Figure 10-13) of device of the present invention, there are two types to detect the photoconduction that file exists and aims at, represent with

mark

106 and 107, described photoconduction all adheres to making with the plastic material of preformed highly transparent, but they have the basic circular section that is, both all are arranged on the vertical direction of plate 48.

At length, the photoconduction 106 of axle 13 upstreams is the shape of a hoof, has two arms 108 and a crooked connecting bridge 109.Arm 108 respectively has a terminal vertical component and a sweep, connects with respect to the vertical direction inclination and by part 109.

The vertical component of arm 108 is inserted into and is formed on 111 li of the interior bearings of the slave plate 48 vertical pillars of giving prominence to, and part 109 has supine concave surface, and tilts along the direction of axle 13.

Photoconduction 107 is a bridge shape structure, has two by sweep bonded assembly vertical substantially arm 112 and a horizontal component 113.When using, photoconduction 107 encompasses reverse rollers 14 with interlace mode, and arm 112 is positioned at the bearing 114 in the ribbing 53 that is formed on edge 49.

In order to keep

photoconduction

106 and 107 correctly to be inserted in bearing 111 and 114, avoid wrong problem occurring locating, therefore use a crash-resistant sealing member, for example resemble shell 116.

Shell 116 (Figure 10 and 13) is made for plastic material, and limits two common rear portions and anterior 117 and 118.

Part 117 comprises end wall 119 and is connected the midfeather 121 at top by concave surface 122, in use perpendicular to plate 48.Part 117 is held the part of the arm 112 of connecting bridge 113 and photoconduction 107.Surface 122 is positioned at above the reverse rollers 14, and the lower edge of

wall

119 and 121 leans on the top at edge 49.

Wall

119 and 121 flutings are to receive the profile shown in the reverse rollers 14.

Anterior 118 limit two projectioies 123, flange 124 and four little hollow pillars 126.Projection 123 is " cheese ", holds second and the 5th pair of reverse rollers 14 and part photoconduction 107.On the flange 124 between the projection 123, there are two slits, 127, the third and fourth pair rollers 14 to rotate within it.Pillar 126 is outstanding from flange 124, and can hold screw 128, and they are suitable for resting on the plate 48.

In assembling process, when close, shell 116 makes

photoconduction

106 and 107 elastic deformations.At length, the inclined surface of projection 123 makes the sloping portion distortion of arm 108, and the accurate position of

wall

119 and 121 qualifying parts 107 and arm 112.

When pillar 126 contacted with plate 48, concave surface 122 just applied relative and leak free effect to four photoconductions 107, prevents that any photoconduction from rising in bearing 114.Simultaneously, the top of " cheese " projection 123 applies counteraction to the part 109 of photoconduction 106, prevents that photoconduction 106 from rising in bearing 111.Shell 116 is detachably connected on the guide plate 48, is screwed in the plate 48 by the screw 128 with pillar 126, makes to be in closed state.

In device 105 of the present invention,

photoconduction

106 and 107 is inserted in bearing 111 and 114, and so that the form of their complete

closed openings

69 and 71 is finished, enters opening to prevent any paper scrap or dust, and (Figure 10 a) thereby anti-locking apparatus operation is malfunctioning.

Particularly,

photoconduction

106 and 107 has

end

120a, 120b, 121a and 121b and shoulder 165, the diameter of this photoconduction end is less than the diameter of photoconduction other parts 108,109,112 and 113, the end can be inserted in opening 69 and 71, and described shoulder 165 divides beginning (Figure 11 and 12) in the light guide portion with different-diameter.

When shell 116 is enclosed on the plate 48, shoulder 165 just be in by opening 69 and 71 with

bearing

111 and 114 between contact the ladder 65 contacted status that obtain, and

end

120a, 120b, 121a and 121b have makes them can be in the length that flushes substantially with the lower surface 41 of guide plate 48, and described guide plate lower surface limits the space that file 46 moves with slide plate 47.And in this case, does not give prominence on the

slave plate end

120 and 121, makes them can not influence moving of file 46.

Term " basically with ... flush " meaning is,

end

120a and 120b want apparent surface 41 recessed distances D, this distance D preferably can (Figure 10 a) in 0.0 to 0.2 millimeter scope.

Similarly, the end 121a of

photoconduction

107 and 121b flush with the lower surface 42 of ribbing 53 basically, and such advantage is, can finish

end

121a and 121b according to the mode of surperficial 42 profiles, so that the importing of paper, the surface tilt of surface 42 relative guide plates 48.

Claims

1. the device (81,105) along feeding planar alignment and feeding sheet material comprising:

Roller of-traction piece material (15) and relative reverse rollers (14),

-at least one light source (59,63) and a corresponding photoelectric detector (61,64), described light source and photoelectric detector are arranged on the homonymy on feeding plane,

-optics connects the light transmission component of described light source (59,63) and described photoelectric detector (61,64), and it is arranged in respect to the described light source on described feeding plane and the opposite side of photoelectric detector, and is associated with guide plate (48),

Wherein, described sheet material is suitable for interdicting the light beam between described light source (59,63), described light transmission component and the described photoelectric detector (61,64), it is characterized in that,

Described transfer element comprises the photoconduction (82,83 of the plastics of elastically deformable; 106,107), these photoconductions have end (93a, 93b, 98a, the 98b with the basic positioned flush of the lower surface (41) of guide plate (48); 120a, 120b, 121a, 121b).

2. the device of aligning as claimed in claim 1 and feeding sheet material (81,105) is characterized in that, described end (93a, 93b, 98a, 98b; 120a, 120b, 121a, 121b) with respect to recessed maximum 0.2 mm distance of described lower surface (41) (D).

3. the device of aligning as claimed in claim 1 or 2 and feeding sheet material (81,105) is characterized in that, described photoconduction (82,83; 106,107) be arranged on the bearing (84,99 of described guide plate (48); 111,114), towards the described feeding plane that light source (59,63) and corresponding light photodetector (61,64) are located.

4. the device of aligning as claimed in claim 1 or 2 and feeding sheet material (81,105) is characterized in that, described photoconduction (82,83; 106,107) be the shape of a hoof or bridge shape.

5. the device (81) of aligning as claimed in claim 4 and feeding sheet material is characterized in that, is used to detect the feeding plane that photoconduction (82) that sheet material exists is arranged to be parallel to reverse rollers (14) upstream.

6. device as claimed in claim 5 (81), it is characterized in that, the photoconduction (82) that is used to detect existence has end (93a, 93b), this end (93a, 93b) with respect to brachiocylloosis, and be arranged in the bearing (84) of guide plate (48), this guide plate is towards described feeding plane that light source (59) and corresponding light photodetector (62) are located.

7. device as claimed in claim 4 (81,105) is characterized in that, the photoconduction that is used to aim at (83,107) is a bridge shape, and is arranged vertically with respect to guide plate (48), and is in the downstream of the bolster (13) of reverse rollers (14).

8. device as claimed in claim 7 (81) is characterized in that, the photoconduction that is used to aim at (83) partly is encapsulated in the single block (101).

9. device as claimed in claim 8 (81) is characterized in that, the photoconduction that is used to aim at (83) has arm (96), and the end of arm is given prominence to and is inserted in the bearing (99) of guide plate (48) from described single block (101).

10. the device (81) of aligning as claimed in claim 1 and feeding sheet material is characterized in that, described photoconduction (82,83) and described guide plate (48) common molded.

11. the device of aligning as claimed in claim 1 and feeding sheet material (81,105) is characterized in that this device comprises intermediary element, intermediary element and photoconduction (82,83; 106,107) engage, and can seal with respect to guide plate.

12. device as claimed in claim 11 (81) is characterized in that, described intermediary element comprises fixedly block (94), this fixedly block (94) act on the connecting bridge (92) that detects the photoconduction (82) that file exists.

13., it is characterized in that described intermediary element comprises described single block (101) as claim 11 or 12 described devices (81).

14. the device of aligning as claimed in claim 1 or 2 and feeding sheet material (105) is characterized in that, described photoconduction (82,83; 106,107) have end (120a, 120b, 121a, 121b), end diameter is less than the diameter of photoconduction other parts (108,109,112,113), and described end forms the bearing (111,114) that is in guide plate (48) and goes up the contacted shoulder of ladder (65) (165) that forms.

15. the device of aligning as claimed in claim 14 and feeding sheet material (105) is characterized in that this device comprises a sealing member, it is suitable for matching with described photoconduction (106,107), with respect to described guide plate (48) photoconduction is sealed.

16. device as claimed in claim 15 (105), it is characterized in that, described photoconduction (106,107) has the vertical direction with respect to guide plate (48), described sealing member comprises a shell, it can be enclosed on the guide plate (48), and has the relative part (119,121,122,123) with the upper bond of photoconduction (106,107).

17. the device of aligning as claimed in claim 16 and feeding sheet material (105) is characterized in that, the described relative part of shell (116) comprises two walls and one and document alignment photoconduction (107) facing surfaces.

18. device (105) as claim 16 or 17 described alignings and feeding sheet material, it is characterized in that, the described relative part of shell (116) comprises dome-shaped projection (123), these projectioies are suitable for making file detect the top elastic deformation of photoconduction (106) when the top of its close photoconduction.

19. device as claimed in claim 16 (105) is characterized in that, described shell (116) can be enclosed on the guide plate (48) by screw (128).

20. device as claimed in claim 1 (81,105) is characterized in that, described photoconduction (82,83; 106,107) plastic material by molded highly transparent obtains.

21. the existence of a sheet material that is used to detect file (46) and/or the device (81,105) of alignment, this device comprises the light transmission component that is arranged between light source (59,63) and the photoelectric detector (61,64), file (46) is suitable for interdicting the light beam between light source, light transmission component and the photoelectric detector, described device (81,105) is characterised in that light transmission component comprises the photoconduction (82,83 of the plastics of elastically deformable; 106,107), sealing arrangement is set, makes with photoconduction (82,83,106,107) and match, so that with respect to the bearing (84,99 of pre-qualification; 111,114) described photoconduction is sealed securely.

22. the existence of the sheet material that is used to detect file (46) as claimed in claim 21 and/or the device (81,105) of alignment, it is characterized in that, file can move between slide plate (47) and guide plate (48), light source (59,63) and photoelectric detector (61,64) are installed on the described guide plate, described device (81,105) is characterised in that, described sealing arrangement comprises intermediary element, intermediary element and photoconduction (82,83; 106,107) engage, and can seal with respect to guide plate (48).