US3874654A - Mechanism for feeding cardboard or like blanks - Google Patents

Mechanism for feeding cardboard or like blanks Download PDF

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Publication number
US3874654A
US3874654A US359329A US35932973A US3874654A US 3874654 A US3874654 A US 3874654A US 359329 A US359329 A US 359329A US 35932973 A US35932973 A US 35932973A US 3874654 A US3874654 A US 3874654A
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US
United States
Prior art keywords
feed
suction
cup
central
cups
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
US359329A
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English (en)
Inventor
Barry Holt
Norman Frank Buckley
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.)
Henry Simon Ltd
Original Assignee
Henry Simon 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 Henry Simon Ltd filed Critical Henry Simon Ltd
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Publication of US3874654A publication Critical patent/US3874654A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/06—De-stacking from the bottom of the stack
    • B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
    • 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

Definitions

  • a well-known feed mechanism of this kind comprises a table on which the stack of cardboard or like blanks rests and includes a reciprocatory suction feed device which moves to and fro in the direction of feed and in the plane of the table.
  • the suction feed device is mounted for reciprocatory movement in the centre of the table, there being to either side of the suction feed device at the forward edge of the table auxiliary suction means comprised by apertures in the table through which suction is applied to pull down positively each blank across the whole of its leading edge to ensure that it can pass freely under the feed gate, it being understood that many such blanks are warped when loaded onto the table.
  • mechanism for feeding cardboard or like blanks one at a time from the underside of a stack thereof comprises a table, the forward part of which is comprised by three reciprocatory suction feed cups adapted, in use, to pull the leading edge of the lowermost blank in the stack positively downwardly and progress it forwardly beneath a feed gate and carry it into the nip between a pair of feed rollers having a relieved central section, the central reciprocatory feed cup being adapted on its forward stroke to advance to a greater extent than the feed cups on either side thereof to carry the blank right into the nip between the feed rollers, the central feed cup then being located within the relieved central section of the feed rollers, the reciprocatory feed cups to either side being arranged to be arrested once they have carried the leading edge of the blank beneath the feed gate.
  • suction is applied continuously to the suction feed cups on either side of the central suction feed cup and the central suction feed cup applies suction only during its forward or feeding stroke, being ported to atmosphere during at least the initial part of its return stroke.
  • FIG. 1 shows a partially cut-away perspective view of the mechanism
  • FIG. 2 shows a cross-section through the mechanism on the line IIII of FIG. 1;
  • FIG. 3 shows a fragmentary partially cut-away plan view of the mechanism.
  • the mechanism is essentially comprised by a feed table which consists of a fixed rear part comprised by a plate 10 and a forward part comprised by three reciprocatory suction feed cups 11, 12 and 13 respectively.
  • a feed table which consists of a fixed rear part comprised by a plate 10 and a forward part comprised by three reciprocatory suction feed cups 11, 12 and 13 respectively.
  • Each of thesuction feed cups 11, 12 and 13 is essentially comprised by a box having a perforated top wall, the top walls being in the plane of the plate 10 to form the forward part of the feed table.
  • the central suction feed cup 12 is adapted, when the mechanism is in use, to be reciprocated longitudinally, (that is in the direction of feed) by means of a pair of rams l4 and 15 which are controlled by cams l6 and 17 mounted on a cam shaft 18 via the intermediary of cam followers 19 and 20 and a lever system generally indicated at 21.
  • the suction feed cups 11 and 13 lying to either side of the central feed cup 12 are mounted on rams 22 and 23 respectively, which are controlled from cams 24 and 25, and 26 and 27 mounted on the shaft 18 via cam followers 28 and 29, and 30 and 31 and lever systems generally indicated at 32 and 33 respectively.
  • the table comprised by the plate 10 and suction feed cups 11, 12 and 13 is adapted to support a stack of cardboard or like blanks B, which is located between a front wall 34, whose lower edge is upwardly spaced from the plane of the table by a distance slightly greater than the thickness of an individual blank B to form a feed gate 35 and a rear wall 36.
  • rollers 37 and 38 In front of the feed table is a pair of feed rollers comprised by upper and lower rollers 37 and 38 respectively, defining a nip therebetween which is at the same level as the surface of the feed table.
  • the central sections of the rollers 37 and 38 are relieved as best seen from FIG. 3 for a purpose which will be apparent hereinafter.
  • cups 11 and 13 are connected by flexible hoses 39 and 40 with a chamber 41 which is itself connected by means of a hose 42 with a suction fan.
  • the fan (not shown) is kept running whereby air is continuously drawn through the perforations in the top walls of the boxes defining the cups l1 and 13.
  • the box defining the central suction feed cup 12 has a rearward extension and base plate 43 containing a port 44 and which slides in sealed relationship over a fixed block 45 provided with recesses 46 and 47 which are adapted to communicate in turn with the port 44 as the cup 12 is reciprocated.
  • the recess 46 is connected by means of a pipe 48 with a vacuum pump (not shown) whilst the recess 47 communicates via a pipe 49 with atmosphere.
  • the feed cups 11 and 13 cease to move forwardly before they would otherwise foul the peripheries of the end unrelieved portions of the feed rolls 37 and 38 whilst the central cup continues to move forwardly to carry the board right into the nip between the rolls 37 and 38, the forward part of the feed cup 12 being located within the relieved sections of the rolls 37 and 38 at the end of its forward stroke.
  • the port 44 connects with the recess 47 thereby con necting the interior of the feed cup 12 with atmosphere and permitting the feed rolls 37 and 38 to progress the blank forwardly further without difficulty.
  • the cups 1], l2 and 13 then execute their reverse strokes, the suction still being applied through the cups 1 1 and 13 helping to ensure that the next blank to be progressed is properly squared against the rear wall 36.
  • the port 44 communicates with the recess 46 so that suction is reapplied ready for the next forward feeding stroke.
  • Mechanism for feeding cardboard or like blanks one at a time from the underside of a stack thereof comprising a table, the forward part of which is comprised by three reciprocably mounted suction feed cups adapted, in use, to pull the leading edge of the lowermost blank in the stack positively downwardly and upon forward stroke progress it forwardly beneath a feed gate, a pair of feed rollers defining a nip forwardly of said feed gate having a relieved central section, means for moving all of said cups together on the forward stroke in such relation that the central reciprocatory feed cup on its forward stroke advances to a greater extent than the feed cups on either side thereof to carry the blank right into the nip between the feed rollers, part of the central feed cup then being located within the relieved central section of the feed rollers, and the reciprocatory feed cups to either side are arrested on the forward stroke short of the feed roller nip once they have aided in carrying the leading edge of the blank beneath the feed gate.
  • each of the suction feed cups is comprised by a box having a perforated top wall, the top walls being in the plane of a plate forming the rear parts of the table.
  • Mechanism according to claim 4 wherein the interiors of the boxes defining the suction feed cups lying to either side of the central suction feed cup are connected by means of hoses with a suction fan.
  • suction is applied continuously to the suction feed cups on either side of the central suction feed cup and wherein suction is applied to the central suction feed cup only during its forward or feeding stroke and part of its return stroke, the central suction feed cup being ported to atmosphere during at least the initial part of its return stroke.
  • each of the suction feed cups is comprised by a box having a perforated top wall, the top walls being in the plane of a plate forming the rear parts of the table.
  • Mechanism according to claim 9 wherein the interiors of the boxes defining the suction feed cups lying to either side of the central suction feed cup are connected by means of hoses with a suction fan.
  • Mechanism according to claim 10 wherein the box defining the central suction feed cup has a rearward extension and base plate containing a port which slides in sealed relationship over a fixed block provided with recesses which are adapted to communicate in turn with the port as the cup is reciprocated, one of said recesses being connected with a vacuum pump whilst the other of said recesses communicates with atmosphere.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Making Paper Articles (AREA)
US359329A 1972-05-25 1973-05-11 Mechanism for feeding cardboard or like blanks Expired - Lifetime US3874654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2467372A GB1412596A (en) 1972-05-25 1972-05-25 Mechanism for feeding cardboard or like blanks

Publications (1)

Publication Number Publication Date
US3874654A true US3874654A (en) 1975-04-01

Family

ID=10215469

Family Applications (1)

Application Number Title Priority Date Filing Date
US359329A Expired - Lifetime US3874654A (en) 1972-05-25 1973-05-11 Mechanism for feeding cardboard or like blanks

Country Status (5)

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US (1) US3874654A (US07534539-20090519-C00280.png)
JP (1) JPS5628822B2 (US07534539-20090519-C00280.png)
DE (1) DE2326923A1 (US07534539-20090519-C00280.png)
FR (1) FR2185573B1 (US07534539-20090519-C00280.png)
GB (1) GB1412596A (US07534539-20090519-C00280.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627606A (en) * 1984-12-13 1986-12-09 Xerox Corporation Bottom sheet feeding apparatus employing a combination slide plate and vacuum valve
US4805384A (en) * 1986-10-14 1989-02-21 J.A.D. Enterprises, Inc. Mail inserting and collating apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8900754A (nl) * 1989-03-28 1990-10-16 Oce Nederland Bv Inrichting voor het afvoeren van vellen vanaf de onderzijde van een stapel.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827290A (en) * 1954-09-16 1958-03-18 Royal Mcbee Corp Vacuum feed
US3226108A (en) * 1961-11-11 1965-12-28 Deritend Eng Co Suction feed mechanism for corrugated and like cardboard
US3279788A (en) * 1965-02-08 1966-10-18 Albert F Shields Sheet feeding means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827290A (en) * 1954-09-16 1958-03-18 Royal Mcbee Corp Vacuum feed
US3226108A (en) * 1961-11-11 1965-12-28 Deritend Eng Co Suction feed mechanism for corrugated and like cardboard
US3279788A (en) * 1965-02-08 1966-10-18 Albert F Shields Sheet feeding means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627606A (en) * 1984-12-13 1986-12-09 Xerox Corporation Bottom sheet feeding apparatus employing a combination slide plate and vacuum valve
US4805384A (en) * 1986-10-14 1989-02-21 J.A.D. Enterprises, Inc. Mail inserting and collating apparatus

Also Published As

Publication number Publication date
GB1412596A (en) 1975-11-05
FR2185573A1 (US07534539-20090519-C00280.png) 1974-01-04
JPS5628822B2 (US07534539-20090519-C00280.png) 1981-07-04
DE2326923A1 (de) 1973-12-13
JPS4942060A (US07534539-20090519-C00280.png) 1974-04-20
FR2185573B1 (US07534539-20090519-C00280.png) 1974-07-05

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