US3570842A - Delivery apparatus for sheets or plates - Google Patents

Delivery apparatus for sheets or plates Download PDF

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Publication number
US3570842A
US3570842A US791743*A US3570842DA US3570842A US 3570842 A US3570842 A US 3570842A US 3570842D A US3570842D A US 3570842DA US 3570842 A US3570842 A US 3570842A
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US
United States
Prior art keywords
pile
suction box
sheets
article
arms
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.)
Expired - Lifetime
Application number
US791743*A
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English (en)
Inventor
Louis Bonnard
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SOC JURINE
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SOC JURINE
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Publication date
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Publication of US3570842A publication Critical patent/US3570842A/en
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    • 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
    • B65H3/24—Separating articles from piles by pushers engaging the edges of the articles
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/122—Suction tables
    • 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
    • B65H3/30—Separating articles from piles by escapement devices; from staggered piles; from piles of articles having staggered formations, e.g. cuts or perforations
    • 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

Definitions

  • the lowermost article of the pile from which the sheets or plates are to be delivered is supported by its front and rear edge.
  • a suction box is applied against the exposed portion of its undersde and is moved longitudinally in one and the other direction so as to disengage the edges of the said article from the front and rear supports of the pile, while the other articles of the pile are retained against horizontal displacement.
  • the suction box is lowered and the article resting thereon is positively pushed toWards the feed rollers of the machine with which the delivery apparatus is associated. This sliding movement may be facilitated by momentarily suppressing the negative pressure within the suction box.
  • This invention relates to the delivery of articles in the form of sheets or plates to printing, cutting, perforating and/or folding machines and the like and it more particularly concerns the delivery of cardboard blanks for the manufacture of boxes and similar articles.
  • the present invention has for its object to avoid the above-mentioned disadvantages of the prior art.
  • the invention concerns a method for the delivery of articles in the form of sheets or plates from a pile of such articles to the feeding rollers of a printing, cutting, perforating, folding or like machine, which consists in applying suction means against the underside of the lowermost article of the pile, in displacing horizontally these suction means so as to disengage the said lowermost article from the pile while retaining the other articles against horizontal displacement, in lowering the said lowermost article, in liberating it from the action of the suction means, and in pushing the rear edge of the said article toWards the feed rollers of the machine.
  • the invention also includes an apparatus for the delivery of articles in the form of sheets or plates from a pile of such articles to the feed rollers of a printing, cutting, perforating, folding or like machine, comprising a support adapted to retain the pile both vertically and horizontally while exposing a substantial portion of the underside of the lowermost article of the pile between the front edge and the rear edge thereof, the said support having a rear gap through which only the lowermost article of the pile may pass, a suction box having a perforated upper wall, means to raise the said suction box so as to apply the perforated upper wall thereof against "ice the exposed portion of the underside of the said lowermost article, means to displace the suction box first rearwardly and then forwardly so as to disengage from the support first the front edge of the lowermost article, the rear edge thereof sliding through the rear gap of the support, and then the said rear edge, means to lower the suction box together with the said lowermost article, and means to push the said article on the perforated wall of the suction box toward the feed roller
  • FIG. 1 is a rear elevation of a delivery apparatus according to the invention.
  • FIG. 2 is a side view thereof.
  • FIG. 3 is a diagram showing the arrangement of the actuating cams of the apparatus.
  • FIGS. 4 and 5 are side views similar to FIG. 2, but showing the parts at two successive positions.
  • FIG. 6 shows curves illustrating the general operation of the apparatus.
  • FIG. 7 is a diagrammatical view showing an embodiment of the front portion of the pile support.
  • the delivery apparatus illustrated comprises a U-shaped frame 1 formed with lateral cheeks la and with intermediate vertical supports lb.
  • the latter rotatably carry a driving shaft 2 (see FIG. 2) which protrudes through one of the lateral cheeks la (right-hand cheek in FIG. 1), its outer end being connected with an appropriate driving motor not shown, or with the driving shaft of the machine with which the apparatus is associated.
  • On this shaft 2 are mounted three actuating cams 3, 4 and 5.
  • shaft 1 is disposed just behind another shaft 18 and is only visible at its right-hand end, but the cams may be seen above and below shaft 1 8. Moreover their respective contours are clearly illustrated in FIG. 3.
  • the lateral cheeks la also rotatably support two upper shafts 6 and 7 parallel to the driving shaft 2. These shafts extend beyond cheeks la and on each of their outer ends is keyed an arm, respectively 8 and 9, these arms being obliquely directed upwardly, as shown in FIG. 2. These four arms are parallel to each other and they are pivotally connected with two lateral slides 10 which extend perpendicularly to shafts 6 and 7. Each slide 10 is formed on its inner side with a longtudinally extending guiding depression which receives two rollers 11 carried by a lateral member 12, these members 12 being rigidly assembled with each other by a flat section box 13. The latter has a perforated upper wall and its inner space is connected by appropriate pipes, not illustrated, with a suction line through suitable valves.
  • Each slide 10 forms with the corresponding arms 8 and 9, and with the adjacent check la, an articulated parallelogram actuated by shafts 6 and 7 in such manner as to raise and lower box 13 when required during the operative cycle of the apparatus.
  • This operation is under control of the above-mentioned cam 3 which acts on a follower 14 (see FIGS. 1, 2 and 3) rotatably mounted on the end of an arm 15 keyed on shaft 6.
  • this cam comprises a semi-circular portion and a substantially square portion adapted to raise and lower follower 14. The latter is maintained against cam 3 by appropriate spring means not illustrated in FIGS. 1 and 2, but which have been very diagrammatically indicated at 15a in FIG. 3.
  • the rear edge of the suction box 13 has two lateral lugs 13a (FIG. 2). Each is connected by a rod 16 with an arm 17, both arms 1 7 being rigidly mounted on a common horizontal shaft 18 parallel to the driving shaft 2 and supported by cheeks la.
  • a third arm 19 keyed on shaft 19 rotatably carries at its free end a follower 20 ⁇ which cooperates with the above-mentioned cam 4, as diagrammatically indicated in FIG. 3.
  • the roller or follower 19' is maintained in engagement with the periphery of the corresponding cam 4 by means of appropriate spring means, such as very diagrammatically indicated at 19a in FIG. 3.
  • FIG. 3 shows the egg-shaped profile of cam 4.
  • the lateral checks la of the frame 1 further support a horizontal shaft 21 parallel to the driving shaft 2 and on each outer end of which is keyed an oscillating arm 22.
  • the shaft 21, which is Situated at the same level as the driving shaft 2, further carries a radial actuating arm 23 formed with an elongated opening 2311 in which is slidably mounted a pin Sa which protrudes laterally from the third cam 5.
  • pin Sa oscillates arm 23 together with shaft 21 and arms 22.
  • cam may be considered as a triangular crank keyed on the end of the driving shaft 2 so as positively to drive arm 23 in both directions without requiring any kind of biassing spring.
  • the frame 1 of the delivery apparatus above described is fixed in the conventional manner to the machine to which the sheets or blanks have to be supplied, immediately in front of the usual pair of feed rollers 24 thereof and below the supports 25, 26 of the pile of sheets or blanks to be successively delivered to these rollers.
  • the first support is disposed near the rollers 24 and it comprises two lateral vertical arms, each having a lower rearwardly directed blade-like retaining finger 25a, The upper side of the latter is substantially horizontal while its lower side is obliquely directed so as to deterrnine an acute front edge for the finger under consideration.
  • a blade spring 27 secured to the lower end of each arm 25 extends towards the feeding rollers 24, its front end resting on a small horizontal table 28 having its upper side disposed substantially in the plane of the gap or rollers 24.
  • the other or rear support 26 is also formed of two lateral vertical arms each having a flat lower retaining finger 26a directed towards the first support, but between the upper side of each finger 26a and the lower end of the corresponding arm 26 there is left an intermediate space or gap 26' (FIG. 2) the vertical width of which is slightly larger than the thickness of a sheet or blank to be delivered to the feed rollers 24 in such manner that but a single one of these sheets or blanks may be engaged into the said space.
  • each finger 26a extends rearwardly beyond the corresponding arm 26 and it is carried by a supporting member 261) secured to the rear side of this arm 26.
  • Means, not illustrated, are preferably provided so as to permit of adjusting the aforesaid gap 26' in accordance with the thickness of the sheets or blanks to be delivered.
  • the pile A of sheets or blanks to be delivered is disposed between supports 25 and 26, the front and rear edge of the lowermost sheet a resting on the retaining fingers 2511 and 26a, as illustrated in FIG. 2. It is to be noted that while in the drawing the upper sides of these fingers have been shown as disposed at the same level above the upper side of the horizontal table 28, in actual practice it is of advantage to dispose the rear fingers 26a slightly higher than the front fingers 25a, as this will be more clearly understood below.
  • Box 13 is connected with the source of negative pressure shortly after line IV so as to take hold of sheet a and during its residual rearward stroke it pulls the latter rearwardly through space or gap 26', as indicated in FIG. 5. As a result of this displacement of sheet a, the front edge thereof leaves fingers 25a which now retain the front edge of the next sheet. During this period arms 22 begin their rearward stroke.
  • An apparatus for the delievery of articles in the form of sheets or plates to the feed rollers of a printing, cutting, perforating, folding or like machine from a substantially vertical pile of such articles each having a front and a rear edge and with said pile including a lowermost article, comprising means to support the front and rear edge of the lowermost article of the pile while exposing the remainder of the underside thereof; means to retain said pile against horizontal displacement, said means being however formed with a gap through which only the rear edge of said lowermost article may slide; a suction box having a perforated upper wall on which an article may be retained under the effect of a negative pressure prevailing within said box; means to apply the perforated upper wall of said suction box against the exposed portion of the underside of said lowermost article to take hold of same; means to displace said suction box rearwardly so as to cause the rear edge of said lowermost article to slide through said gap and to disengage the front edge thereof from said supporting means; means to displace said suction box forwardly to disengage the rear edge
  • supporting means comprising a pair of substantially vertical front arms to retain said pile *against forward displacement, each of said front arms having a lower end; a blade-like supporting finger extendng'rearwardly at the lower end of each of said front arms, each of said fingers having an acute rear edge and a substantially horizontal upper side to support the front edge of the lowermost article of the pile; a pair of substantially vertical rear arms to retain said pile against rearward displacement, each of said rear arms having a lower end; a forwardly extending finger disposed below the lower end of each of said rear arms at ⁇ such a distance therefrom as to leave therebetween said gap through which only the rear edge of said lowermost article may pass, each of said forwardly extending fingers having a substantially horizontal upper side to support the rear edge of said lowermost article; and means connecting said forwardly extending fingers with said rear arms while permitting rearward displacement of said lowermost article by said suction box.
  • suction box being guided and supported by substantially horizontal lateral slides and said means to displace said box rearwardly and forwardly comprising connecting rods hinged to said box, pivoted arms to which said connecting rods are pivotally attached, and means to oscillate said pivoted anms.
  • said suction box being guided and supported by substantially horizontal lateral slides; and said means to apply said box against the underside of said lowermost article and to lower said box with said lowermost article thereo comprising two pairs of oscillatable parallel arms each forming with one of said slides an articulated parallelogram permitting vertical displacement of said one of said slides while retaining same at a substantially horizontal position, and means to oscillate said arms so as to raise and lower said slides in uniso together with said suction box.
  • said means to push the rear edge of the lowermost article disengaged from said supporting means comprising fingers to engage said rear edge, oscillating arms each carrying one of said fingers, a common shaft on which said oscillating arms are mounted, and means acting on said common shaft to oscillate said oscillating arms.
  • a stationary frame a rotary driving shaft supported by said frame; a first cam on said rotary driving shaft to actuate said means to apply the perforated upper wall of said suction box against the exposed portion of the underside of said lowermost article and also said means to lower said suction box; a second cam on said rotary driving shaft to actuate said means to displace said suction box rearwardly and said means to displace said suction box forwardly; and a third cam on said driving shaft to actuate said means to push the rear edge of said lowermost article towards the feed rollers of the machine.
  • a table disposed in front of the feed rollers of the machine to slidably support said lowermost article when the rear edge thereof is pushed towards said feed rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US791743*A 1968-01-26 1969-01-16 Delivery apparatus for sheets or plates Expired - Lifetime US3570842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69049581 1968-01-26

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US3570842A true US3570842A (en) 1971-03-16

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US791743*A Expired - Lifetime US3570842A (en) 1968-01-26 1969-01-16 Delivery apparatus for sheets or plates

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US (1) US3570842A (ja)
DE (1) DE1902794A1 (ja)
FR (1) FR1568091A (ja)
GB (1) GB1218004A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680854A (en) * 1970-08-27 1972-08-01 Jones & Co Inc R A Method and apparatus for feeding flat blanks to make boxes
US4250684A (en) * 1976-07-09 1981-02-17 Dupaylite Developments Limited Packaging method and apparatus
EP0451091A1 (de) * 1990-04-06 1991-10-09 De La Rue Giori S.A. Bogenanleger
AU619248B2 (en) * 1988-02-18 1992-01-23 Tetra Pak Finance & Trading S.A. A method of and an apparatus for isolating flat parts

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096953A (en) * 1977-03-21 1978-06-27 Cincinnati Milacron Inc. Mechanism to transfer workpieces between locations
FR2418183A2 (fr) * 1978-02-27 1979-09-21 Martin Sa Dispositif d'introduction synchronisee de plaques dans une machine de traitement
US4328918A (en) * 1978-11-25 1982-05-11 Yoshida Kogyo K.K. Stop fixing device for slide fastener
FR2476615A1 (fr) * 1980-02-22 1981-08-28 Martin Sa Dispositif d'alimentation en feuilles d'une machine de traitement
US4867433A (en) * 1988-02-19 1989-09-19 The Ward Machinery Company Dual feeding of sheets of processing machinery
DE3905214A1 (de) * 1989-02-21 1990-08-23 Focke & Co Verfahren und vorrichtung zur entnahme von (packungs-)zuschnitten aus einem zuschnitt-magazin
DE9312049U1 (de) * 1993-08-12 1994-05-11 Böwe Systec AG, 86161 Augsburg Vorrichtung zum Vereinzeln von Karten aus einem Kartenstapel
EP2740695B1 (de) 2009-12-18 2017-07-26 Müller Martini Holding AG Vorrichtung zum Vereinzeln von Druckprodukten aus einem Stapel
CN104876040A (zh) * 2015-04-13 2015-09-02 山东信川机械有限责任公司 平移式纸板输送机
CN110899468A (zh) * 2019-12-13 2020-03-24 苏州震伴威自动化设备科技有限公司 一种高效的自动冲孔设备

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680854A (en) * 1970-08-27 1972-08-01 Jones & Co Inc R A Method and apparatus for feeding flat blanks to make boxes
US4250684A (en) * 1976-07-09 1981-02-17 Dupaylite Developments Limited Packaging method and apparatus
AU619248B2 (en) * 1988-02-18 1992-01-23 Tetra Pak Finance & Trading S.A. A method of and an apparatus for isolating flat parts
EP0451091A1 (de) * 1990-04-06 1991-10-09 De La Rue Giori S.A. Bogenanleger

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Publication number Publication date
DE1902794A1 (de) 1969-09-04
FR1568091A (ja) 1969-05-23
GB1218004A (en) 1971-01-06

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