CN1683225A

CN1683225A - Paper feeding method and apparatus

Info

Publication number: CN1683225A
Application number: CNA2005100599714A
Authority: CN
Inventors: 矢野忠; 佐藤祐一
Original assignee: Sanwa Kako Co Ltd
Current assignee: Sanwa Kako Co Ltd
Priority date: 2004-04-06
Filing date: 2005-04-04
Publication date: 2005-10-19
Anticipated expiration: 2025-04-04
Also published as: DE602005021425D1; EP1584583A2; CN100448764C; EP1584583B1; JP2005298078A; EP1584583A3

Abstract

The invention provides a bottom feeder which can suppress accuracy reduction by abrasion of a roll following the use of the rubber roll, occurrence of scratch on the sheet surface, increase in the maintenance cost following the roll abrasion, and increase in manufacturing cost by complication of the device. In extracting only the lowest paper sheet from a paper stack and supplying it to a subsequent process, the paper stack is held while being tilted in a back gate direction between the back gate and a front guide of which lowest end is formed as a claw for holding the end of the paper stack, only the lowest paper sheet is sucked, removed from the claw of the front guide, and extracted, and the paper sheet is fed to a subsequent printing or die cutting process. Simultaneously, the remaining paper stack is pressed up by a lifting table, the contact of the extracted paper sheet with a next paper sheet is prevented, and the lowest paper sheet is moved to the subsequent process.

Description

Paper feeding method and device

Technical field

The present invention relates to the many pieces of extraction page of a kind of foot, and supply with the modification method and the employed sheet supply apparatus thereof of the so-called bottom document feeder of follow-up engineering from pile.

Background technology

In known techniques, known 1 extraction page of opening of foot that has a kind of from pile, and the device that supplies to printing device and stamping-out (punching) device is a so-called bottom paper feeder, page class feed arrangement (with reference to patent documentation 1) has been proposed at present, it is characterized in that, comprise: holding components, wall portion with direction of feed front portion of the page class that restriction for example answers feeding, with the hook portion that binds the direction of feed top ends that is in the page class of taking out the side forefront, pick up the paper device, the facial rear with the page class that is in the taking-up side forefront that this holding components direction of feed top ends supported of absorption contacts to portion's face, and utilize elastic component along can joltily being supported on the fore-and-aft direction of page class direction of feed, narrow road forms parts, limit above-mentioned direction of feed back portion of answering the page class of feeding, and and the above-mentioned absorption face that picks up the paper device between form to make and be in 1 narrow road that the page class can be passed through that takes out the side forefront, directing plate, above-mentionedly pick up 1 page class that the paper device taken out and separate so that utilize with other page class, and import the form between the feed rolls of supply port and be bent to form setting, air blows out portion, between above-mentioned narrow road formation parts and above-mentioned holding components, be provided with page class side portion subtend, and blow the spray air and make and produce the gap between the page class to the side portion of page class, and make and utilize the above-mentioned page class bending of picking up the paper device and picking up from above-mentioned holding components, to add on the above-mentioned directing plate, take out order by the page class and be driven, and it is mobile that above-mentioned pick-up is come and gone at page class direction of feed upper edge certain distance; Bottom document feeder (with reference to patent documentation 2), for a kind of make the stacked scraps of paper from the below document feeder of paper feed successively, it is characterized in that: be equipped with scraps of paper guiding device, this scraps of paper guiding device be provided with bind the center guide portion of lower end, front side of the stacked scraps of paper, and below the back guide portion that guides scraps of paper rear side, formation can be by the door of 1 scraps of paper, and the scraps of paper of below are removed utilize binding of aforementioned center guide portion and fallen downwards and to aforementioned door channeling conduct, feeding forwards then; Bottom document feeder (with reference to patent documentation 3), be a kind of preceding guide portion, back door, lamination sheets that is kept between the two of comprising, and be provided with adsorbed layer lamination foot the scraps of paper below make it temporarily retreat the suction box that advances then, and adopt from the bottom document feeder of the formation of following scraps of paper feeding successively, it is characterized in that: above-mentioned suction box with above paper is relative on form the adsorption section, and be provided with outlet roller with part outstanding upward state above this; Deng.

But in these bottom document feeder, in order to improve the friction force between page and roller, the roller that uses the rubber layer that is covered from the teeth outwards is as outlet roller, so have the shortcoming of the abrasion severity on surface usually.

And, when in order to improve this shortcoming, and when using the material of high hardness for example pottery forming the surface, the area of contact of page and roller diminishes, and can't obtain enough friction force, so in the document feeder of bottom, still the inevitable low rubber rollers of superficial hardness of using, make roller surfaces because of the inclined to one side graduation of load, and area of contact is increased, can guarantee the use of the rubber rollers of desired friction force.

Yet, under the situation of using this rubber rollers, when the back end of the page of pile foot during by outlet roller portion, next page enters roller sections immediately, so in order to prevent contacting and form scratch because of the back end of next page and foot page with contacting of outlet roller, or the part of printing disappears, or the surface of rubber rollers consumes the generation of these problems because of the rubber phenomenon, and the page that enters until foot that stop next page passes through roller fully.

But even roller and electrical motor are stopped, because roller, the friction phenomenon that also can't avoid following period of time is the rubber phenomenon.And, continue as this friction phenomenon, roller surfaces can produce abrasion, make the outside dimension and even the perimeter change of roller, and the amount of movement and the moving velocity of the page of per 1 rotation of roller are reduced, sequential turmoil to the exchange of follow-up printing or stamping-out engineering can cause the decline of printing precision and punching precision.

In addition, to derive roller and whenever stop row in order to make, need a plurality of rollers row of control, the result causes the complicated of device, and consumes electric power and also increase, and causes the increase of manufacturing cost.

The special public clear 55-1210 communique of [patent documentation 1] Japanese Patent Laid Open Publication (claim scope and other)

The spy of [patent documentation 2] Japanese Patent Laid Open Publication opens clear 61-114937 communique (claim scope and other)

The spy of [patent documentation 3] Japanese Patent Laid Open Publication opens flat 9-194058 communique (claim scope and other)

Summary of the invention

The objective of the invention is to, provide in view of the above problems a kind of and form, can suppress to follow rubber rollers use brought, because of the precision that abrasion caused of roller is low, the generation of scraps of paper galled spots, because of the bottom document feeder of the rising of the complicated manufacturing cost that causes of the increase of maintenance cost of following the roller abrasion and device, thereby be suitable for practicality more.

Present inventors are in order to suppress the various troubles that use caused because of the rubber rollers in the document feeder of bottom, carried out research with keen determination repeatedly, found that when the time from 1 extraction page of opening of pile foot, by utilizing the following of this page of absorption and with its attraction band that transmits and combination with bay-lift of cam, can reach this purpose, and finish the present invention according to this opinion.

Promptly, the invention provides a kind of paper feeding method and sheet supply apparatus, wherein paper feeding method is characterised in that: only extracting the page of foot from pile out and supplying to the process of follow-up engineering, form between the preceding guide portion that is used for the terminal pawl that keeps of pile and the back door in the lower end pile is kept obliquely to the back door direction, and only adsorb undermost page and unload extraction by the pawl of guide portion before aforementioned, and send page to the later stage of printing or stamping-out (punching) engineering, utilize the remaining pile of bay-lift jack-up simultaneously, prevent contacting of the page extracted out and next page, and undermost page is moved to follow-up engineering; Sheet supplying device is characterised in that: make the lower end crooked to the inside and form preceding guide portion and the back door upright setting parallel to each other of pawl, and configuration can positive and negative rotation the attraction band, this attraction band has the interval that can 1 page be passed through with the lower end at back door, and be equipped be used for the jack-up pile and liberate with attract with the bay-lift that contacts and be used to make the cam mechanism of its rise and fall, it is right to attract the top prolongation of band to be provided with in addition to be used to receive from the roller that attracts the page that band transmitted.

As utilize the present invention, undermost page is attracted by adsorption band and is transmitted, so do not have the slide relative between page and the attraction band, and the follow-up page of orlop page is supported not contact with undermost page until attracting band to stop at certain position by bay-lift.

Therefore, accessible effect is: because the abrasion of band is considerably less, so even the long-time transmission precision of using can not descend yet; Can not produce the scratch of (following) of page surface; Because band can stand long use, so maintenance cost descends; Owing to can turn round, so a kind of simple structure and cheapness, device that reliability is high can be provided by 1 servomotor torque constant; Or the like.

The present invention compared with prior art has tangible advantage and beneficial effect.Via as can be known above-mentioned, the invention provides a kind of bottom document feeder, can suppress to follow rubber rollers use brought, because of the precision that abrasion caused of roller is low, the generation of scraps of paper galled spots, because of the rising of the complicated manufacturing cost that causes of the increase of the maintenance cost of following the roller abrasion and device.Only extracting the page of foot from pile out and supplying to the process of follow-up engineering, form between the preceding guide portion that is used for the terminal pawl that keeps of pile and the back door in the lower end pile is kept obliquely to back door (back gate) direction, and only adsorb undermost page and unload extraction by the pawl of guide portion before aforementioned, and send page to the later stage of printing or stamping-out (punching) engineering, utilize the remaining pile of bay-lift jack-up simultaneously, prevent contacting of the page extracted out and next page, and undermost page is moved to follow-up engineering.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Figure 1 shows that the side cross sectional drawing of 1 example of apparatus of the present invention.

Fig. 2 is the planar view of Fig. 1.

Fig. 3 is the part expanded view of Fig. 1.

Fig. 4 is used to page drawing mechanism of the present invention is described, makes part be the cross sectional drawing of oblique drawing.

Fig. 5 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

Fig. 6 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

Fig. 7 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

Fig. 8 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

Fig. 9 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

1: pile 1 ', 1 ": page

2: preceding guide portion 3: back door

4: be subjected to a pawl 5: attract band

6: the attraction hole 7 that attracts band: suction box

7 ': the attraction hole 8 of suction box: drive pulley

9: driven pulley 10: bearing

11: plunging joint (coupling) 12: servomotor torque constant

13: pipeline 14: induced draft fan (suction blower)

15: bay-lift 16: fulcrum

17: cam 18: top

19: cam follower (cam follower) 20: axle drive shaft

21: electrical motor 22: feed rolls

23: following directing plate

The specific embodiment

Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the paper feeding method that foundation the present invention is proposed and install its specific embodiment, method, step, structure, feature and effect thereof, describe in detail as after.

According to accompanying drawing, describe being used to implement optimal morphology of the present invention, but therefore the present invention is not subjected to any restriction below.

Fig. 1 is the side cross sectional drawing of 1 example of apparatus of the present invention, and Fig. 2 is its planar view, and Fig. 3 is the part expanded view of Fig. 1, and Fig. 4 is used to page drawing mechanism of the present invention is described, makes part be the cross sectional drawing of oblique drawing.

In Fig. 1, pile 1 makes its leading section by preceding guide portion 2, and rearward end is supported by back door 3.

The bottom of this preceding support sector 2 is the lateral bending song backward, and formation is subjected to a pawl 4.Supported by a pawl 4, in order to avoid the page 1 of foot " fall.The lower end at back door 3 disposes to such an extent that the lower end of more preceding guide portion 2 is low, is held low than leading section by the rearward end that makes pile 1.

The rearward end of page 1 ' is supported on a plurality of (this routine situation are 4) attract to be with 5, and is with on 5 break-through to be provided with in this attraction to attract hole 6 ....Below attracting, set up and be provided with the suction box 7 that attracts hole 7 ', by the weight of supporting pile 1 and attraction with 5 with 5.Attraction is with 5 rotations according to drive pulley 8 and driven pulley 9, forwards or the rear advance.

And, attract to be with 5 to use annulars that cingulum is arranged, with the tooth interlock on drive pulley 8 and driven pulley 9 surfaces, prevent drive pulley 8 and attract with the slip between 5.Drive pulley 8 rotates freely by pedestal on bearing 10, and links by plunging joint (coupling) 11 and servomotor torque constant 12.

Suction box 7 links by pipeline 13 and induced draft fan (suction blower) 14, makes the suction box 7 inner negative pressure that keep.Therefore, undermost page 1 ' attracts to be with on 5 by attracting to be attracted to 5 attraction hole.

Bay-lift 15 ... between attracting, be provided with a plurality of (this routine situation is 3) with 5.This bay-lift 15 ... as shown in Figure 4, be the rotation of center and corresponding cam 17, make top 18 of bay-lift 15 attract to uprise above the band repeatedly or the lifting action of step-down with fulcrum 16.The bottom of bay-lift 15 is equipped with cam follower (cam follower) 19, and contacts with cam 17 rotations.

Cam 17 utilizes the speed to set to be driven in rotation along the electrical motor 21 of folk prescription to continuous rotation by axle drive shaft 20.

Fig. 5 to Fig. 9 is the lateral plan that is used to illustrate the effect of apparatus of the present invention.

In Fig. 5, make induced draft fan 14 action, and by pipeline 13, suction box 7, attract sucking 6 with 5 ..., undermost page be adsorbed on attract to be with on 5.Attraction is with 5 attraction hole 6 ... only be arranged on on the part in full week, only attract the part absorption page in hole having (being 2 places in this example).

Then, in Fig. 6, utilize servomotor torque constant 12 to make drive pulley 8 rotation, and make and attract to be with 5 to move, retreat and make adsorbed page 1 ' rearward (be right in the diagram) to flechette-type symbol a direction.When the leading section of this page 1 ' remove be subjected to binding of pawl 4 and downwards directing plate 23 fall, rearward end stops servomotor torque constant 12 from the back door 3 and when attracting only to retreat setpoint distance with 5 gap, stops to retreat of page 1 '.At this moment, bay-lift 15 above be in the top low position that attracts with 5.

And, in Fig. 7, utilize servomotor torque constant 12 to make and attract to be with 5 round about, promptly flechette-type symbol b direction moves, and make adsorbed page 1 ' forwards (in diagram for left to) advance.When setting size when advancing, the rotation of the top corresponding cam 17 of bay-lift 15 and rising, become than the top height that attracts with 5, not make from several the 2nd page 1 of orlop " descend because of the weight of upper strata pile by this and with the form that attracts band to contact, support the 2nd page 1 " and the weight of the scraps of paper on upper strata.Because attract attraction hole 6 with 5 ... only attract undermost page 1 ' and move, so the 2nd page 1 " carve at this moment and be not attracted.

Then, in Fig. 8, attract to be with 5 to move on, bay-lift 15 keeps propradation, and page 1 ' front end arrival feed rolls 22, and is fed roller 22 clampings (feed rolls 22 also is to be rotated on the working direction of page always).When the rear end of page 1 ' when attracting to break away from 5 fastening, bay-lift 15, ... top in order not make the 2nd page 1 " contact also under steam attraction be with 5, and keep attracting above 5, exceeding the position of setting size, and intactly this position kept.

At last in Fig. 9, when the position row that attracts the attraction hole 6 (2 places attract in the hole another to attract hole) with 5 enters desired location, promptly page 1 " during the bottom of rearward end, servomotor torque constant 21 stops, and attraction is with 5 also to stop.After attraction was with 5 to stop, bay-lift 15 descended, the 2nd page 1 " be attracted and be with 5 adsorbedly, form the state of Fig. 5.

Carry out this action repeatedly, pile is sent to the feed rolls side for 1 from undermost page with opening successively.

The present invention is suitable for use in the situation that below page is supplied to by 1 printing device and stamping-out (punching) device from pile.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims

1, a kind of page supply method is characterized in that it may further comprise the steps:

Only extracting the page of foot from pile out and supplying to the process of follow-up engineering, forming between the preceding guide portion that is used for the terminal pawl that keeps of pile and the back door in the lower end pile is kept obliquely to the back door direction;

Only adsorb undermost page and unload extraction by the pawl of guide portion before aforementioned; And

Send page to the later stage of printing or stamping-out engineering, utilize the remaining pile of bay-lift jack-up simultaneously, prevent contacting of the page extracted out and next page, and undermost page is moved to follow-up engineering.

2, a kind of sheet supplying device is characterized in that it comprises:

Make the lower end crooked to the inside and form preceding guide portion and the back door upright setting parallel to each other of pawl, and configuration can positive and negative rotation the attraction band, this attraction band has the interval that can 1 page be passed through with the lower end at back door, and be equipped be used for the jack-up pile and liberate with attract with the bay-lift that contacts and be used to make the cam mechanism of its rise and fall, it is right to attract the top prolongation of band to be provided with in addition to be used to receive from the roller that attracts the page that band transmitted.