EP0714842A2 - Dispositif pour séparer des feuilles plissées ou des brochures brochées - Google Patents

Dispositif pour séparer des feuilles plissées ou des brochures brochées Download PDF

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Publication number
EP0714842A2
EP0714842A2 EP95118835A EP95118835A EP0714842A2 EP 0714842 A2 EP0714842 A2 EP 0714842A2 EP 95118835 A EP95118835 A EP 95118835A EP 95118835 A EP95118835 A EP 95118835A EP 0714842 A2 EP0714842 A2 EP 0714842A2
Authority
EP
European Patent Office
Prior art keywords
roller
separating
conveyor belt
support
separating roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95118835A
Other languages
German (de)
English (en)
Other versions
EP0714842B1 (fr
EP0714842A3 (fr
Inventor
Kurt Dipl.-Ing. Hasler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0714842A2 publication Critical patent/EP0714842A2/fr
Publication of EP0714842A3 publication Critical patent/EP0714842A3/fr
Application granted granted Critical
Publication of EP0714842B1 publication Critical patent/EP0714842B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • B65H3/042—Endless-belt separators separating from the bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • B65H3/5276—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5292—Retainers of the belt type, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the invention relates to a device for separating folded sheets, in particular stapled brochures from a stack formed from these sheets or brochures, wherein the sheet or booklet lying underneath in the stack is laterally removable with the features of the preamble of Claim 1.
  • the present invention is based on this state of the art, and it aims to construct a device of the type mentioned at the outset in such a way that it can be used both for separating individual sheets and for separating folded sheets or even brochures, in other words, that it can be adapted to a large extent to the respective circumstances, which are predetermined by the type of the stacked goods.
  • the invention proposes those measures that are the content and subject of the characterizing part of claim 1.
  • the aforementioned adaptation is possible to a large extent, so that not only individual, thin sheets can be pulled off and separated from a stack with the device according to the invention, but also folded sheets that have different thicknesses over their width or length because they may contain inserts, or also multi-page and bound brochures that have a different stiffness in the longitudinal and transverse directions, due to the binding provided on their back and their respective top , during the passage through the converging gap along the guide element sliding surface tends to bend immediately after passing through this gap.
  • the device has one or more conveyor belts 1 which are designed to run endlessly, the surface of which is profiled and / or at least have a surface which has a high coefficient of friction.
  • the number of conveyor belts (Fig. 2), which are arranged side by side, depends on the size and type of formats to be separated with this device.
  • the length L of the conveyor belt or belts 1 also depends on the formats to be separated, but it should be dimensioned such that the conveyor belt extends at least a small amount beyond the center of gravity of the stack to be placed.
  • the upper strand of the conveyor belt 1 loaded by the stack, not shown, is supported by support rollers 2. Instead of individual support rollers 2, a support runner could also be arranged.
  • rollers 3, 3 ' are mounted, on the same axis as the deflection and Drive rollers of the conveyor belt 1.
  • the diameter of these rollers 3, 3 ' is slightly larger than the belt deflection diameter, so that the jacket of these rollers protrudes somewhat from the support plane of the conveyor belt.
  • the deflection and drive rollers of the conveyor belt 1 could also have a lateral collar with an enlarged diameter.
  • the drive axle 21, which carries the delivery-side rollers 3 or the delivery-side deflection and drive rollers of the conveyor belts 1, is connected via a freewheel 22 to a drive pinion 18, in such a way that the conveyor belt 1 is relative to its drive speed by the drive motor 20 and the countershaft shown here in FIG. 2 - consisting of drive pinion 18 and toothed belt 19 - is predefined or may advance due to external influences.
  • the conveyor belt 1 or its surfaces should have a large coefficient of friction compared to paper, but the abrasion ability should be low in order to avoid contamination of the device. This also applies to rolls 3 and 3 'as well as to all other rolls or components that are used to transport the sheets or brochures.
  • an ejection roller 4 is rotatably mounted, this ejection roller 4 being connected to its drive axle 5 via a freewheel 6, specifically in such a way that the ejection roller 4 advance in relation to the axis 5 driving it can.
  • the horizontal distance between the ejection roller 4 and the discharge-side rollers 3 should be smaller than the smallest of the formats to be separated here on this device.
  • a horizontally lying sheet 7 is arranged, the support plane of which is a small amount below the uppermost points of the two rollers 3 and 4, so is somewhat set back compared to these uppermost points, which can also be seen in FIG. 1 .
  • a separating roller 8 is arranged as a guide element on an axis 9 with an interposed freewheel 10, in such a way that - based on FIG. 1 - this separating roller can be freely rotated counterclockwise, but clockwise is coupled to the fixed axis 9.
  • This separation roller 8 is mounted on a support 12.
  • a pressure roller 13 is also provided, which is supported vertically by a spring 26 and which is located directly above the ejection roller 4.
  • a horizontal guide plate 14 is also provided between these two rollers 8 and 13 and forms a through-channel 24 with the above-mentioned guide plate 7. This upper baffle 14 is opposite the lowest points of the two Rolls 8 and 13 offset slightly higher.
  • the separating roller 8 is preceded by a vertical stop plate 15 on which the stack to be placed on the conveyor belt 1, not shown here, bears on the end face. This stop plate 15 is approximately tangential to the separating roller 8.
  • the separating roller 8 has the task of limiting a tapering gap 27 against the discharge-side end of the conveyor belt 1.
  • the separation roller 8 is covered with a friction-intensive material over the entire surface or at least partially.
  • the rear end of the conveyor belt 1 is raised and lowered (arrow 36).
  • a wedge-shaped lifting device 16 can be provided, which can be adjusted in the direction of the arrows 28 with regard to its inclination and its position relative to the conveyor belt 1 (FIG. 5).
  • rollers 3 and 4 and the conveyor belt 1 are driven by a drive motor 20 via a countershaft which is formed from a toothed belt 19 and the drive pinions 17 and 18, of which the one drive pinion 17 is fastened on the drive axis 5 of the ejection roller 4 and the other drive pinion 18 is seated on the drive shaft 21 with the interposition of the already mentioned freewheel 22.
  • the two drive pinions 17 and 18 are dimensioned so that their transmission ratio is approximately 1: 1.2 - 1: 3.
  • a light barrier 23 is expediently arranged in the flow channel 24, which is delimited by the two guide plates 7 and 14.
  • a clocked deduction is achieved with the light barriers. that is, after the passage of a part, the transport is briefly interrupted and then restarted.
  • a counter not shown here, would also be controlled in this way.
  • a time delay element must be provided in the electronics because the paper or the brochure is still in the ejection roller when leaving the measuring edge. After the light barriers have responded, the ejection roller 4 must continue to run until the rear edge of the sheet or brochure in the ejection direction has left the ejection roller 4. This electronic effort (time delay element) can be saved if the light barrier 23 is arranged behind the ejection roller 4 as seen in the ejection direction (FIGS. 1 and 3).
  • a stack of folded sheets of paper, sheets of paper or brochures is placed on the conveyor belt 1 or the conveyor belts, in such a way that the end face of this stack on Stop plate 15 abuts and the folded edges of the folded paper sheets or paper sheets lie parallel to axes 5 and 21. If the conveyor belt 1 is switched on, which then rotates counterclockwise with respect to FIG. 1, the paper sheet lying at the bottom of the stack becomes left pulled and runs into the flow channel 24.
  • the separating roller 8 is set by means of the handwheel 11 relative to the delivery-side roller 3 of the conveyor belt to a gap 27, the width of which corresponds to the thickness of the paper sheet to be separated, so that only a folded paper sheet can pass through the gap delimited by the two last-mentioned rollers.
  • the tapering gap 27, which is formed on the one hand by the discharge-side roller 3 or the conveyor belt 1 and on the other hand by the separating roller 8, generates an additional contact pressure due to the mutual sheet friction in the stack, so that the flawless runout of the individual sheets of paper down to the last sheet of paper Stack is ensured.
  • the storage of the separating roller 8 by means of a freewheel 10 serves that the surface of this separating roller 8 is evenly stressed. Due to the sheet or sheet thickness setting, which must be carried out again and again, this separating roller 8 is rotated again and again into a different position, so that always different sections of the surface or of the jacket of this separating roller 8 cooperate with the discharge-side roller 3 to limit the gap.
  • This setting can be carried out by means of a handwheel 11 or by means of an automatically working sheet or sheet thickness measurement.
  • the support 12 is divided into two parts, the pressure roller 13 being mounted in one part 120 and the separation roller 8 being mounted in the other part 121.
  • the part 121 having the separating roller 8 is mounted such that it can be adjusted in height, moreover the separating roller 8 is supported by the spring 30.
  • the two-part support 12 as a whole is height-adjustable (arrow 25). This division of the support 12 is appropriate so that the contact pressure of the pressure roller 13 can be adapted to the paper quality.
  • the separating roller 8 must not be influenced by the setting and changing the contact pressure of the contact roller.
  • the spring-loaded mounting of the separating roller 8 automatically adjusts to any unevenness in the paper flow.
  • the pressure roller 13 To separate any thick brochures made of material with poor grip, there are also straps 31 between the pressure roller 13 and the separating roller 8 provided that are made of a high-friction material.
  • the outside diameter of the belt 31 in the deflection area of the separating roller 8 is somewhat smaller than the outside diameter of the separating roller 8, so that the paper lying in the separating area is not damaged.
  • the deflection diameter of the belt 31 in the pressure roller 13 is preferably the same size as the outer diameter of the pressure roller 13, thereby ensuring that the material to be separated is drawn in against the ejection roller 4.
  • the belt 31 is carried along by the rotation of the pressure roller 13, in the region of the separating roller 8 freely rotatable belt rollers are mounted on the axis 9. These belts 31 also prevent the top sheets of continuous brochures from building up after passing through the gap 27.
  • the ejection roller 4 rotates somewhat faster than the conveyor belt 1. This forces a distance between the retracted sheet or sheet and the subsequent one, which can be detected by the light barrier 23.
  • the electronic control it is possible to count the individual pieces that have been removed, to make multiple deposits or to selectively deposit the sheets.
  • the support 12 is supported by means of a spring 29.
  • the threaded spindle 34 firmly connected to the support 12 passes through a bore in the arm 35.
  • the compression spring 29 penetrated by the threaded spindle 34.
  • the spring constant of this spring 29 is somewhat larger than that of the spring 26, with which the pressure roller 13 is resiliently mounted, so that the exact adjustability of the separating roller 8 is not impaired.
  • the light barriers 23 are arranged behind the ejection roller 4 when viewed in the ejection direction.
  • the invention also includes automatic separation gap adjustment. This is achieved with an embodiment of the invention, as illustrated in FIG. 4. Here, the separating gap is automatically set within a range of approx.
  • the part 121 of the two-part support 12 carrying the separating roller 8 is here L-shaped, the separating roller 8 being in the apex region of the two legs forming the L-shape, and the horizontal leg of the L-shaped part 121 being around in a vertical plane the axis of the pressure roller 13 is pivotable.
  • a compression spring 32 is provided between the two parts 120 and 121 of the support 12, the pretensioning of which can be adjusted by means of an adjusting screw 33 passing through it.
  • the separation roller 8 is pressed down by the spring 32.
  • the adjustment screw 33 mentioned the smallest gap 27 and the contact pressure of the separating roller 8 can be adjusted. Due to the freely supported support, the separating roller 8 can automatically adapt to different booklet strengths against the force of the spring 32, which ensures the controlled drawing in of the individual booklets or brochures.
  • the conveyor belts 1 can be deflected somewhat downward after the rear support roller 2 (FIG. 1). This ensures that the conveyor belts run against the stack from below. This prevents the ribs possibly provided on the conveyor belt from running against the rear edge of the paper stack and damaging the edge.
  • the freewheel 22 in the drive system is therefore useful so that the sheet entering the rapidly rotating ejection mechanism can be quickly removed from the conveyor belts so as to create a gap between successive sheets which can be used for detection purposes without causing excessive friction between the sheet in the ejection and the conveyor belts.
  • This allows the facility work with relatively long conveyor belts and a large number of support rollers, which has a positive effect on the stack height.
  • the freewheel 6, on the other hand, in cooperation with the freewheel 22, serves to remove a piece of paper that has got stuck between the ejection and pressure rollers in the ejection direction.
  • the guide plate 14 can be attached directly to the support or in its place on the stop plate 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP95118835A 1994-12-02 1995-11-30 Dispositif pour séparer des feuilles plissées ou des brochures brochées Expired - Lifetime EP0714842B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT223794 1994-12-02
AT223794 1994-12-02
AT2237/94 1994-12-02

Publications (3)

Publication Number Publication Date
EP0714842A2 true EP0714842A2 (fr) 1996-06-05
EP0714842A3 EP0714842A3 (fr) 1997-02-26
EP0714842B1 EP0714842B1 (fr) 1999-06-09

Family

ID=3530578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118835A Expired - Lifetime EP0714842B1 (fr) 1994-12-02 1995-11-30 Dispositif pour séparer des feuilles plissées ou des brochures brochées

Country Status (3)

Country Link
EP (1) EP0714842B1 (fr)
AT (1) ATE181032T1 (fr)
DE (1) DE59506155D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111391281A (zh) * 2020-04-10 2020-07-10 陈龙 一种建筑机械的供电线缆牵引连接装置
CN115503286A (zh) * 2022-10-08 2022-12-23 湖南恒邦彩印包装有限公司 一种滚筒间距调节组件及全自动高速制袋机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH635801A5 (de) * 1978-01-27 1983-04-29 Rengo Co Ltd Vorrichtung zum aufeinanderfolgenden zufuehren von gestapelten kartonstuecken an die verarbeitungswalze einer druck- oder verarbeitungsmaschine.
US4529187A (en) * 1982-09-17 1985-07-16 International Telephone & Telegraph Corporation Ticket magazine
US4991831A (en) * 1989-08-14 1991-02-12 Green Ronald J Paper sheet feeding apparatus
US5143365A (en) * 1989-08-14 1992-09-01 Green Ronald J Paper sheet feeding apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111391281A (zh) * 2020-04-10 2020-07-10 陈龙 一种建筑机械的供电线缆牵引连接装置
CN115503286A (zh) * 2022-10-08 2022-12-23 湖南恒邦彩印包装有限公司 一种滚筒间距调节组件及全自动高速制袋机

Also Published As

Publication number Publication date
EP0714842B1 (fr) 1999-06-09
EP0714842A3 (fr) 1997-02-26
ATE181032T1 (de) 1999-06-15
DE59506155D1 (de) 1999-07-15

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