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US3740049A - Counter system for orbital packer - Google Patents

Counter system for orbital packer Download PDF

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Publication number
US3740049A
US3740049A US00064332A US3740049DA US3740049A US 3740049 A US3740049 A US 3740049A US 00064332 A US00064332 A US 00064332A US 3740049D A US3740049D A US 3740049DA US 3740049 A US3740049 A US 3740049A
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US
United States
Prior art keywords
fingers
roll
cam
napkin
packer
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
US00064332A
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English (en)
Inventor
D Fischer
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.)
Paper Converting Machine Co
Original Assignee
Paper Converting Machine Co
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 Paper Converting Machine Co filed Critical Paper Converting Machine Co
Application granted granted Critical
Publication of US3740049A publication Critical patent/US3740049A/en
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
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/06—Forming counted batches in delivery pile or stream of articles by displacing articles to define batches
    • B65H33/10—Displacing the end articles of a batch

Definitions

  • the present invention relates to systems for stacking individual web segments, such as napkins or the like. More particularly, the present invention pertains to an orbital packer for napkins which, at a predetermined count, displaces one single napkin to a higher position extending above the stack and serving as a count napkin.
  • Folded napkins of the type which are commercially available in retail markets, are formed from a continuous web which is fed into a folding path where the web is first longitudinally folded, then severed into individual segments which are subsequently transversely folded and then packed in a magazine. It is customary to have one napkin at a predetermined number raised above the others by one-fourth to one-half in.. These napkins, referred to as count napkins, separate the stack into bundles of known amounts for packaging.
  • orbiting fingers are arranged to take folded napkins from a grooved vacuum or cylinder or roll and deliver them individually to a magazine where a stack is formed horizontally.
  • the packer assembly including the packer fingers is mounted on a driven shaft by means of an eccentric inner member clamped tothe shaft and an outer member rotatably mounted on the inner member.
  • the outer member is' held generally upright by means of a first spring-loaded link while permitting orbital motion of the outer member which supports the packer fingers. Under normal operating conditions, the packer fingers move in an elliptical orbit to displace the web segments from the surface of the roll and transport them into the magazine.
  • the spring-biased link which holds the packer fingers in their generally upright position is connected to an L-shaped link.
  • a counter generates an electrical signal at a predetermined count, representing the count napkin, to actuate a solenoid valve which energizes an air cylinder to rotate the L-shaped link to a position wherein a cam follower on the L-shaped link is moved into operative relation with a cam on the driven shaft.
  • the L-shaped link rotates to move the spring-biased link which, in turn, tips the packer assembly to move the elliptical orbit of the packer fingers slightly away from the vacuum roll i.e., slightly out of the grooves in the vacuum roll.
  • the cam resets the packer fingers to the original elliptical orbit before they reach their maximum delivery position to avoid hitting the previously discharged napkins in a magazine harder at the count than during normal delivery. Further, the rotation of the cam delivers the outer member to its original dwell profile and when the air cylinder is reversed, the outer member is already in its normal delivery position.
  • the present invention enables an orbital packer to continue to operate at its normal high speed while delivering a count napkin at a predetermined count at the same normal high speed of the system.
  • FIG. 1 is a schematic view, in side elevation, of a system incorporating the present invention
  • FIG. 2 is a detailed showing, partially in cross section of the packer assembly
  • FIG. 3 is a close-up side view of a portion of the packer assembly
  • FIG. 4A is a plan view, with certain parts partially broken away, showing the orbitingand tripping mecha nism, and turned from the orientation of FIG. 1;
  • FIG. 4B is a partially broken away elevation view of the structure of FIG. 4A taken from the bottom of the page thereof;
  • FIG. 5 is a more detailed side elevational view of a portion of the mechanism for tilting the packer assembly.
  • FIG. 1 there is seen a napkin folder equipped with an orbital packer including a frame generally designated by reference numeral 10 to which is fed a continuous web 11 of the material comprising the napkins.
  • the web 11 is fed over a folding board (hidden by the web 11) for forming a continuous longitudinal fold in the web 11.
  • the folded web is fed between a rigidly supported roll 12 and a pull roll 13 which is resiliently biased against the rigidly supported roll 12 for drawing the web into the system and for creasing the longitudinal fold.
  • the rolls 12 and 13 as well as the rolls subsequently discussed are suitably journaled in the frame 10 unless otherwise indicated.
  • the folded web is then fed about an idler roll 14 into partial wrapping engagement with a carrier roll 15 adjacent which is located a cut off roll 16.
  • the carrier roll 15 preferably is provided with two anvils located at diagonally opposite portions of its periphery for backing the web 11 as it is severed by knives carried by the cut off roll 16.
  • the severed segments are held against the surface of the carrier roll by a suitable vacuum and then brought into contact with the surface of a folding roll 17. All of the rolls discussed thus far are driven in synchronism.
  • the folding roll 17 applies a vacuum to the transverse mid-section of each of the severed web segments on the periphery of the carrier roll 15; and the vacuum in the roll 15 is then released so that as the folding roll 17 removes the individual segments, they become folded transversely.
  • the packer assembly includes a plurality of upstanding fingers 20 (see FIG. 2) which are driven in the indicated orbit by the dotted line 21 of FIG. 1 for delivering the napkins on the folding roll 17 to a magazine generally designated by reference numeral 23.
  • the periphery of the folding roll 17 is conventionally provided with a plurality of grooves in which the fingers 20 reside during the left-hand portion of the elliptical orbit 21.
  • FIGS. 2 and 3 The structure for causing the fingers 20 to move in their elliptical delivery path is illustrated in more detail in FIGS. 2 and 3.
  • an inner member 25 which rotates with the driven shaft 18.
  • An outer member generally designated by reference numeral 26 is rotatably mounted on the eccentric member 25 by means of tapered roller bearings 27.
  • the outer member 26 includes first and second side plates 30 and 31 together with a central yoke 32.
  • the yoke 32 includes a downwardly depending flange 33 and an upper bracket 34 on which the packer fingers 20 are mounted.
  • the eccentric inner member 25 rotates with it, but the outer member 26 is held in a generally upright position (while being permitted to orbit) by means of structure presently to describe so that the fingers 20 are driven in their generally elliptical orbit 21.
  • the link 37 pivotally connected as at 38 to the lower portion of the flange 33.
  • the link 37 includes a spring 43 which is in compression urging the link 37 toward the right.
  • the spring 43 is received on a rod 45 which extends through an inner bearing member 39 which is journaled within a generally L-shaped link designated 40 and including (in FIG. 5) a downwardly depending section 41 and a leftwardly-projecting section 42.
  • the spring is held in compression between the bearing 39 and an end washer 46 mounted on the rod 45.
  • the link 37 is limited in motion toward the right in FIG.
  • a cam follower 55 is rotatably mounted on the section 42 of the link 40.
  • the cam follower 55 is adapted to selectively engage a cam 56 which is mounted to and rotates with the driven shaft 18.
  • the cam 56 rotates clockwise as shown in FIG. 5; and in profile it is provided with a 180 dwell surface, followed by a fall (see reference numeral 56a).
  • the fall 56a is a modified sine form, and it is followed by a 90 rise 56b, also of modified sine form. The radial distance between the rise and fall being sufficient to move the follower 55 a distance of 0.125 in.
  • the distal end of the section 42 of the link 40 is pivot- I tended to cause the portion 42 of the link 40 to move upward and thereby rotate the link 40 in a clockwise direction about the fixed shaft 50 when permitted to do so, as will be presently explained.
  • a conventional electrical counter (not shown) is provided with the system for generating a signal which controls a solenoid valve which, in turn, forces air into the cylinder end of the air cylinder 60 and exhausts the rod end thereby causing the rod to extend relative to the frame 10.
  • the resultant force causes the link 40 to rotate in a direction as just explained until the cam follower 55 contacts the dwell surface of the cam 56.
  • the distance the link moves to cause the cam follower 55 to engage the cam 56 at dwell is very small of the order of 3-5 mils.
  • the fall 56a of the cam 56 is placed so that the follower 55 contacts the cam 56 during a dwell cycle.
  • the tipping of of the packer assembly is controlled by the cam 56.
  • the cam 56 is designed additionally such that before the fingers reach their maximum position to the right, the cam 56 has rotated with the driven shaft 18 to the rise cam profile 56b which forces the link 40 back to its original position thus resetting the packer fingers to their elliptical orbit and preventing hitting the previously deposited napkins in the magazine harder at count than during normal delivery. After delivery of the count napkin, the cam 56 will have rotated to a position equivalent to its original dwell profile so that when the air cylinder is contracted, there is only a slight additional counterclockwise rotation of the link 40.
  • the electric counter may be of the type which is commercially available under the tradename Dynapar, manufactured by Louis Allis Co.
  • an orbital packer including means for delivering individual folded web segments to a vacuum folding roll having peripheral grooves and a packer assembly including fingers received for orbital motion in said groove for delivering napkins from said roll to a magazine
  • actuatable means for tipping said packer assembly when actuated to engage a napkin on said folding roll sooner than would be engaged in a normal delivery cycle
  • said actuatable means including a driven shaft, holder means supporting said fingers eccentrically rotatably mounted on said driven shaft, resilient means for yieldably holding said holder means in a first position while permitting orbiting of said fingers, and power means for selectively moving said resilient means when actuated to thereby tip said holder means to move said fingers momentarily out of their normal orbit to deliver a count napkin; and timing mechanism associated with said packer assembly for actuating said power means at predetermined intervals.
  • timing mechanism further includes means for returning said fingers to their normal orbit after removing a count napkin from said roll to prevent hitting previously deposited napkins harder.
  • said holder means further includes an outer member including packer fingers received within said grooves on said folding roll 6 whereby when said shaft is driven said packer fingers move in an elliptical orbit to deliver web segments from said folding roll, said outer member defining an extension; and wherein said power means further includes,
  • a packer assembly comprising a shaft driven in timed relation with said vacuum roll; a plurality of fingers rotatably mounted on said shaft, the ends of said fingers received in said grooves of said roll and traveling in a predetermined orbit when said shaft is driven to engage individual web segments on the periphery of said roll and remove them from the roll and deliver them to a magazine; link means for resiliently holding said fingers in a first position to deliver segments to said magazine; and actuation means operating in timed relation with said driven shaft to tilt said fingers outwardly of said roll before a web segment reaches its normal delivery position whereby said segment is delivered to said magazine displaced from other segments therein.
  • said actuation means further comprises a cam on said driven shaft including a fall and a rise; a first spring-biased link means having one end connected to said fingers for holding them generally in said first position while permitting orbiting of the fingers in normal deliveries; second link means mounted for selective rotation between a first and a second position, said first link means pivotally connected to said second link means and effecting nor mal deliveries of said web segments when in said first position; said second link means also including a cam follower adapted to engage said cam on said shaft when said second link means is in said second position to tilt said fingers outwardly of said orbit when said cam follower engages the fall of said cam, said cam being timed to deliver a web segment displaced from other stacked web segments, said rise'on said cam then displacing said second link means to said first position; and wherein said power means includes forcing means for selectively urging said second link means to said second position in response to a predetermined count in the delivery of web segments.

Landscapes

  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00064332A 1970-08-17 1970-08-17 Counter system for orbital packer Expired - Lifetime US3740049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6433270A 1970-08-17 1970-08-17

Publications (1)

Publication Number Publication Date
US3740049A true US3740049A (en) 1973-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00064332A Expired - Lifetime US3740049A (en) 1970-08-17 1970-08-17 Counter system for orbital packer

Country Status (6)

Country Link
US (1) US3740049A (fr)
JP (1) JPS5328838B1 (fr)
BE (1) BE771415A (fr)
CA (1) CA957268A (fr)
DE (1) DE2140109C3 (fr)
GB (1) GB1291040A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360194A (en) * 1979-10-18 1982-11-23 Paper Converting Machine Company Web unit handling method and apparatus
AT374766B (de) * 1982-07-21 1984-05-25 Paper Converting Machine Co Faltvorrichtung fuer materialbahnen
DE3523827A1 (de) * 1984-07-13 1986-01-16 Paper Converting Machine Co., Greenbay, Wis. Vorrichtung zum falten von windeln
US5000436A (en) * 1990-02-26 1991-03-19 Paper Converting Machine Company Rotary stacker and method
US20030082044A1 (en) * 2001-07-27 2003-05-01 Gendron Jeffrey A. Apparatus and method for stacking and separating sheets discharged from a starwheel assembly
US6832886B2 (en) 2001-07-27 2004-12-21 C. G. Bretting Manufacturing Co., Inc. Apparatus and method for stacking sheets discharged from a starwheel assembly
US20050023746A1 (en) * 2003-07-30 2005-02-03 Michler James R. Starwheel feed apparatus and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814138C3 (de) * 1978-04-01 1982-01-14 Omet S.n.C., Lecco, Como Trenn-, Halte- und Fördereinrichtung für Pakete

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US331282A (en) * 1885-12-01 crowell
US1208083A (en) * 1916-05-04 1916-12-12 William Bodge Counting device.
US1342665A (en) * 1919-07-16 1920-06-08 Cutlerhammer Mfg Co Counter
DE617588C (de) * 1933-11-01 1935-08-22 Windmoeller & Hoelscher G M B Mit Zaehleinrichtung verbundene Ablegevorrichtung fuer Papiersackmaschinen u. dgl.
US2946266A (en) * 1957-06-07 1960-07-26 Merle J Collingwood Counting and displacing apparatus for printing press delivery mechanisms
US3256012A (en) * 1964-03-16 1966-06-14 Paper Converting Machine Co Orbital packing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US331282A (en) * 1885-12-01 crowell
US1208083A (en) * 1916-05-04 1916-12-12 William Bodge Counting device.
US1342665A (en) * 1919-07-16 1920-06-08 Cutlerhammer Mfg Co Counter
DE617588C (de) * 1933-11-01 1935-08-22 Windmoeller & Hoelscher G M B Mit Zaehleinrichtung verbundene Ablegevorrichtung fuer Papiersackmaschinen u. dgl.
US2946266A (en) * 1957-06-07 1960-07-26 Merle J Collingwood Counting and displacing apparatus for printing press delivery mechanisms
US3256012A (en) * 1964-03-16 1966-06-14 Paper Converting Machine Co Orbital packing device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360194A (en) * 1979-10-18 1982-11-23 Paper Converting Machine Company Web unit handling method and apparatus
AT374766B (de) * 1982-07-21 1984-05-25 Paper Converting Machine Co Faltvorrichtung fuer materialbahnen
DE3523827A1 (de) * 1984-07-13 1986-01-16 Paper Converting Machine Co., Greenbay, Wis. Vorrichtung zum falten von windeln
US5000436A (en) * 1990-02-26 1991-03-19 Paper Converting Machine Company Rotary stacker and method
US7364398B2 (en) 2001-07-27 2008-04-29 C.G. Bretting Manufacturing Company, Inc. Apparatus and method for stacking sheets discharged from a starwheel assembly
US20030082044A1 (en) * 2001-07-27 2003-05-01 Gendron Jeffrey A. Apparatus and method for stacking and separating sheets discharged from a starwheel assembly
US6832886B2 (en) 2001-07-27 2004-12-21 C. G. Bretting Manufacturing Co., Inc. Apparatus and method for stacking sheets discharged from a starwheel assembly
US7470102B2 (en) 2001-07-27 2008-12-30 C.G. Bretting Manufacturing Co., Inc. Apparatus and method for insertion of separating means into a forming stack of sheets discharged from a starwheel assembly
US20050087925A1 (en) * 2001-07-27 2005-04-28 C.G. Bretting Manufacturing Co., Inc. Apparatus and method for stacking sheets discharged from a starwheel assembly
US20050023746A1 (en) * 2003-07-30 2005-02-03 Michler James R. Starwheel feed apparatus and method
US7219887B2 (en) 2003-07-30 2007-05-22 C.G. Bretting Manufacturing Company, Inc. Starwheel feed apparatus and method
US20050258589A1 (en) * 2003-07-30 2005-11-24 C.G. Bretting Manufacturing Company, Inc. Starwheel feed apparatus and method
US6877740B2 (en) 2003-07-30 2005-04-12 C.G. Bretting Manufacturing Company, Inc. Starwheel feed apparatus and method
USRE42267E1 (en) 2003-07-30 2011-04-05 C.G. Bretting Manufacturing Company, Inc. Starwheel feed apparatus and method

Also Published As

Publication number Publication date
CA957268A (en) 1974-11-05
BE771415A (fr) 1971-12-31
DE2140109B2 (de) 1978-02-16
GB1291040A (en) 1972-09-27
DE2140109C3 (de) 1978-10-19
JPS5328838B1 (fr) 1978-08-17
DE2140109A1 (de) 1972-03-16

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