EP0200922B1 - Cardboard feeder - Google Patents

Cardboard feeder Download PDF

Info

Publication number
EP0200922B1
EP0200922B1 EP19860104549 EP86104549A EP0200922B1 EP 0200922 B1 EP0200922 B1 EP 0200922B1 EP 19860104549 EP19860104549 EP 19860104549 EP 86104549 A EP86104549 A EP 86104549A EP 0200922 B1 EP0200922 B1 EP 0200922B1
Authority
EP
European Patent Office
Prior art keywords
cardboard
rolls
kicker
feeder
lowermost
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
Application number
EP19860104549
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0200922A1 (en
Inventor
Takehiro C/O Mihara Machinery Works Of Takahashi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0200922A1 publication Critical patent/EP0200922A1/en
Application granted granted Critical
Publication of EP0200922B1 publication Critical patent/EP0200922B1/en
Expired 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
    • B65H3/24—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
    • 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

  • This invention relates to a machine for making cartons of cardboard such as corrugated sheet and, more particularly, to a cardboard feeder for use with the carton making machine which achieves smooth feeding of cardboards without causing defective feeding, collapse, and the like.
  • Fig. 4 is a schematic diagram of a conventional cardboard feeder 1.
  • cardboards 5 are piled and stored in a hopper formed by a front stopper member 3 and a rear support member 4 provided on a table 2.
  • a slide bar 6 embedded slidably in the table 2 is reciprocated by a crank mechanism 7.
  • a kicker 8 is fixed on the slide bar 6 so that in response to the operation of the crank mechanism 7 the cardboards 5 in the hopper are kicked out in the direction of the arrow shown in the drawing through a slit formed at the lower end of the front stopper member 3 of the hopper each lowest one at a time.
  • a pair of upper and lower feed rolls 9 and 10 so that the cardboard 5 sent out from the hopper is pinched between the upper and lower feed rolls 9 and 10 and in response to the rotation of the two rolls 9 and 10, is forwarded successively to a subsequent step.
  • Fig. 5 is an enlarged front view of a portion A in Fig. 4.
  • the upper feed roll 9 is divided into plural segments and supported rotatably, while the surface of the lower feed roll 10 is finished through knurling or made rough by forming it by rubber, for example.
  • a driving system of the upper and lower feed rolls 9 and 10 is not illustrated.
  • Fig. 6 illustrated the state in which the cardboard 5 passes between the upper and lower feed rolls 9 and 10. As shown in Fig.
  • a gap g between the upper and lower feed rolls 9 and 10 is set by a gap adjusting unit provided separately, but not illustrated, so as to assume a spacing smaller than the thickness T of the cardboard 5.
  • a gap adjusting unit provided separately, but not illustrated, so as to assume a spacing smaller than the thickness T of the cardboard 5.
  • the gap g between the upper and lower feed rolls 9 and 10 had to be made considerably smaller than the thickness T of the cardboard 5 because the friction drag is of the static type and relatively large.
  • the degree of collapse of the cardboard 5 becomes large and the strength of a carton thus made is insufficient, thus, disqualified products tend to be manufactured many.
  • corrugated board of thick linerboard configuration had to be employed and this in turn caused another inconvenience, such as a waste of resources.
  • the conventional cardboard feeder had the problems that to draw out the lowest cardboard out of those stored in the hopper it is necessary to increase the pinching force of the upper and lower feed rolls, this tends to cause collapse of the cardboard just conveyed, and to prevent such collapse the raw cardboard must be thick.
  • a cardboard feeder as defined by the precharacterizing features of claim 1 is known from the US-A-3 994 489.
  • This known cardboard feeder overcomes the deficiencies of the feeder discussed so far by having a feed bed comprising rolls contacting the under surface of the lowermost cardboard of the stack of cardboards. These rolls are mounted above a vacuum source in such a manner as to enable the lowermost cardboard to be flat while minimizing the friction between said cardboard and the feed bed. Said low friction is attained by mounting the rolls contacting the lowermost cardboard in a freely rotatable manner. Alternatively the rolls can be power driven. A specific mechanism for power driving the feed bed rolls in such a manner that friction is prevented between these rolls and the lowermost cardboard, however, is missing in this document.
  • a plurality of continuous belts in contact with the undersurface of the lowermost cardboard are used. These belts are driven in conjunction with the kicker for kicking out the lowermost cardboard by the same drive mechanism.
  • a free wheel mechanism is used to ensure the belts to be driven only in feed direction. Nevertheless considerable friction might arise between the lowermost cardboard being sucked to the belts by means of a vacuum source, because no provisions are arranged to synchronize the movement of the kicker and the belts.
  • FIG. 1 is a schematic side view of a cardboard feeder according to an embodiment of the present invention
  • Fig. 2 is a sectional view taken in the direction of the arrows B-B of Fig. 1.
  • a cardboard feeder indicated by reference numeral 1 functions as a device for kicking out forward the lowest one of cardboards 5 piled in a hopper formed by a front stopper member 3 and a rear support member 4 provided on a table 2 by the use of the reciprocating motion of a kicker 8 projecting from the upper surface of the table 2.
  • the cardboard thus kicked is pinched between a pair of upper and lower feed rolls 9 and 10 disposed in a station subsequent to the cardboard feeder 1, so that it is forcedly taken and sent out.
  • the kicker 8 is fixed on a slide bar 6 slidable inside the table 2 so that it can reciprocate together with this slide bar 6.
  • the slide bar 6 in turn is reciprocated by means of a crank mechanism 7 disposed therebelow.
  • the foregoing configuration of the device is similar to the conventional cardboard feeder shown in Fig. 4.
  • rolls 11 are included which form an important portion of the present invention.
  • gears 12 are secured on either end of each roll 11.
  • the roll 11 is arranged so that its upper point is substantially flush with the surface of the table 2.
  • a ratchet mechanism is accommodated for rotating the shaft of the roll in one direction, that is, in the embodiment illustrated these are designed so that the roll 11 can rotate only in the feed direction of cardboards.
  • Reference numeral 13 indicates a gear whose upper point is in gear with the gear 12 accommodating the ratchet mechanism with its lower point being in gear with a rack 14 provided underside the slide bar 6.
  • 1 and 2 includes six gears 12 each accommodating the ratchet mechanism therein provided on either side of the cardboard feed station, i.e. six rolls 11 arranged in parallel with one another, the number of rolls may be one or more and as shown in Fig. 3, a roll composed of a plurality of short rolls 11 a supported by one shaft may be employed in place of one long roll 11.
  • the cardboards 5 piled in the hopper be kicked out by the kicker 8 and sent smoothly into the subsequent step by the upper and lower feed rolls 9 and 10 at an accurate timing without causing any collapse of the cardboard each lowest one at a time.
  • the rolls 11 are provided in the table 2 with their upper points being substantially flush with the upper surface of the table 2, the rolls 11 are driven only when the kicker 8 moves forward (only at the time of kicking out the cardboard 5), and the top speed of the kicker 8 is set so as to coincide substantially with the peripheral speed of the rolls 11; thus, the friction drag caused by .
  • the face of the table 2 is reduced and the cardboard 5 kicked out by the kicker 8 can be sent forward by a small force even while it is conveyed by the upper and lower feed rolls 9 and 10, consequently, the cardboard 5 is collapsed little and a processing in the subsequent step can be performed accurately, thereby resulting in the advantages of enhancing the product quality and of saving resources.
  • the cardboards are sent out smoothly from inside the hopper; thus, a waste of resources and a fall of strength of products that would otherwise result from collapse of the cardboard can be prevented from arising, and the degree of accuracy of printing, grooving, and like processes done in the subsequent step can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP19860104549 1985-04-05 1986-04-03 Cardboard feeder Expired EP0200922B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50653/85U 1985-04-05
JP5065385U JPS61168036U (un) 1985-04-05 1985-04-05

Publications (2)

Publication Number Publication Date
EP0200922A1 EP0200922A1 (en) 1986-11-12
EP0200922B1 true EP0200922B1 (en) 1989-07-12

Family

ID=12864899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860104549 Expired EP0200922B1 (en) 1985-04-05 1986-04-03 Cardboard feeder

Country Status (4)

Country Link
EP (1) EP0200922B1 (un)
JP (1) JPS61168036U (un)
AU (1) AU5558986A (un)
DE (1) DE3664310D1 (un)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU574298B1 (en) * 1987-09-02 1988-06-30 Mitsubishi Jukogyo Kabushiki Kaisha Paper board feeding device
JP2531510Y2 (ja) * 1991-09-26 1997-04-02 三菱重工業株式会社 板状体供給用キッカの駆動装置
AUPM916894A0 (en) * 1994-11-02 1994-11-24 Tdm Pty Ltd Improved ticket dispensing machine
US7331576B2 (en) 2004-05-03 2008-02-19 Zih Corp. Feeder device having increased media capacity and multiple media thickness feed capability and associated method
CN114311830B (zh) * 2021-12-01 2023-09-26 重庆皖渝纸制品有限公司 一种带有辅助支撑架的分纸机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH524529A (de) * 1971-04-08 1972-06-30 Vnii Oboru Dlya Pechatnykh Izd Vorrichtung zur stückweisen Zuführung von Bögen
US3994489A (en) * 1974-09-19 1976-11-30 Henc Edward V Rolling vacuum feed table
FR2395213A1 (fr) * 1977-06-02 1979-01-19 Martin Sa Dispositif d'introduction synchronisee de plaques dans une machine de traitement

Also Published As

Publication number Publication date
JPS61168036U (un) 1986-10-18
EP0200922A1 (en) 1986-11-12
AU5558986A (en) 1986-10-09
DE3664310D1 (en) 1989-08-17

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