US3486293A - Apparatus for associating objects and wrapping material - Google Patents

Apparatus for associating objects and wrapping material Download PDF

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Publication number
US3486293A
US3486293A US603803A US3486293DA US3486293A US 3486293 A US3486293 A US 3486293A US 603803 A US603803 A US 603803A US 3486293D A US3486293D A US 3486293DA US 3486293 A US3486293 A US 3486293A
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US
United States
Prior art keywords
wrapping material
rollers
feed
wrapped
sheet
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
US603803A
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English (en)
Inventor
Pieter Arnoldus Van De Bilt
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.)
Metaverpa Maartensdijk NV
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Metaverpa Maartensdijk NV
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Publication date
Application filed by Metaverpa Maartensdijk NV filed Critical Metaverpa Maartensdijk NV
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Publication of US3486293A publication Critical patent/US3486293A/en
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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
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers

Definitions

  • the present invention relates to apparatus for associating an object to be wrapped and an appropriate length of wrapping material with each other, so that the wrapping material can be disposed about the object to be Wrapped.
  • the object to be wrapped may be a stack of individual objects, a package, or any other object.
  • the wrapping material can be in the form of a sheet which covers or encloses the object to be wrapped, about which a wire or tape or rope can be subsequently passed or not, or it can be a length of wrapping material which is itself to be disposed about another packaging material that encloses the object.
  • the apparatus of the present invention is characterized by means for advancing an indeterminate length of wrapping material and for severing the wrapping material into separate lengths, at the same time that the object to be wrapped is also advanced, and the severing of the associated length of Wrapping material is controlled by the advance of the object to be wrapped.
  • the objects of the present invention are achieved in that between a worktable and a cutting blade for the packaging material there is provided, in addition to the upstream set of feeding rollers, a second set of feeding rollers, downstream of the cutter.
  • these second feeding rollers rotate continuously with the same speed as that with which the first rollers are driven.
  • the first set of feeding rollers is driven intermittently according to the advance of an object to be wrapped, and this intermittent drive pulls a length off a supply roll and starts it toward the worktable.
  • the second set of rollers rotates continuously. So when the first rollers stop, then the tension in the sheet rises and the switch that actuates the cutting device is operated and the sheet is cut through. After that, the rollers of the second set continue to rotate and feed the sheet positively to the worktable. At the same time, because of this tension in the sheet at at the time of cutting, the edges of the sheet are positively pulled off both sides of the blade and the tension is relieved by the cutting of the sheet.
  • the apparatus can also be used to feed sheets to the top of the object to be wrapped, because the entrainment of the sheet by the object no longer depends upon the friction which the object exerts on the sheet.
  • the articleadvancing means is a belt conveyor, then it is preferable that the belt conveyor be driven at the same linear speed as the peripheral speed of the second set of feeding rollers, in order that the cut-off wrapping material and the object to be wrapped may meet at the same speed.
  • the means responsive to tension in the stretch of wrapping material between the first and second roller means may consist of a bent guideway between the two sets of roller means, the guideway extending in such a way that the sheet traverses, between the two sets of roller means, a path which is longer than the shortest path between the sets of roller means.
  • at least the side of the guideway that faces toward that shortest path is yieldably mounted and is adapted to cooperate with a switch that actuates the cutting device.
  • the switch for controlling the cutting device can operate the cutting device only when the first set of feeding rollers is stopped. Thus it is ensured that the blade is not moved by other conditions that might cause tension, such as the inertia of the supply roll.
  • the switch for controlling the cutting device may be an air valve which controls the position of a control valve in the supply of compressed air to cylinders which move the cutting device such as a blade.
  • Such an air valve is incorporated in a pneumatic circuit in such a way that pressure medium can be supplied by this valve only when the first set of feeding rollers is stopped, the compressed air circuit to the cutting device or blade being pressureless when the first set of feeding rollers is driven.
  • pneumatic controls of the present invention can be replaced by electric controls or by combined fluid-electric controls.
  • the first set of feeding rollers for the packaging material consists of two wheels which contact the middle of the material
  • the second set consists of two pairs of wheels which contact it near its edges.
  • the length of the sheet can be predetermined by varying the length of time during which the first set of feeding rollers operates. This can be done by providing in the worktable a switch which is actuated by the object to be wrapped, for example by providing that the forward edge of the object actuates the first set of feeding rollers and the rear edge actuates a brake for these rollers. By means of a control blade carried by the switch, it can be assured that the feeding rollers supply a length of material which is greater than is the length of the bottom of the object to be wrapped.
  • the belt conveyor ahead of the belt conveyor in the working plane of the table, that is, upstream of the conveyor with regard to the direction of travel of the upper or working run of the conveyor that advances the object to be wrapped, there are provided at least two driven rollers, spaced apart in the direction of belt travel, these rollers being power driven and the roller farthest from the belt having a nonslip surface while the roller between the nonslip roller and the belt has a smooth surface.
  • the peripheral speed of the nonslip roller is substantially lower than the linear speed of the upper run of the conveyor belt, while the speed of the smooth roller lies between those upper and lower speeds.
  • FIGURE 1 is a side cross-sectional view showing apparatus according to the invention
  • FIGURE 2 is a top plan view of apparatus according to the invention.
  • FIGURE 3 is a fluid circuit diagram of the invention.
  • FIG. 1 apparatus according to the present invention, comprising a frame 1 that carries a worktable 2 with a horizontal working surface.
  • a supply roll 3 comprises in the illustrated embodiment a rolled-up web of paper 4 of indeterminate length. Web 4 extends about a roller 5 which is carried by the end of a lever 6 which is continuously yieldably urged into bight-forming relationship by a tension spring 7.
  • a pair of conveyor belts 8 are disposed with their upper or working runs in the plane of worktable 2. These conveyor belts are mounted on pulleys 9 and 10, support wheels 11, and idlers 12.
  • conveyor rollers 13 and 14 which are driven by chains 16 and 17 from pulley 10 so that rollers 13 rotate with a peripheral speed that is lower than the linear speed of belts 8, while rollers 14 rotate with a lower peripheral speed then the rollers 13. Rollers 14 have a nonslip surface and rollers 13 have a smooth surface. Because of this difference in speed, a separation of immediately consecutive objects to be wrapped takes place. In operation, the conveyor members 8, 13 and 14 are continuously driven.
  • This apparatus Disposed beneath the conveyor members in the frame 1 is apparatus for feeding and cutting off sheets of paper from the web 4.
  • This apparatus comprises a guideway 18, a first set of driven feeding rollers or wheels 19, and a second set of feeding rollers 20, as well as a pneumatically actuated reciprocating cutter blade 21 or other severing device.
  • the rollers 20 are driven by means of a chain 22 from the shaft of pulleys 9, this same chain driving a conveyor roller 23 which is disposed at the end of the apparatus immediately downstream of the mouth of guideway 18.
  • the conveyor belts 8 and the roller 23 and the feeding rollers 20, and the feeding rollers 19 when they are actuated, are therefore all driven at the same peripheral or linear velocity, so that a severed sheet emerging from guideway 18 leaves the guideway at the speed of the object which is to be wrapped therein.
  • control strip 24 in the form of a feeler mechanically moved by the advancing object.
  • Control strip 24 controls the operation of the feeding rollers 19. These feeding rollers operate as long as the advancing object is in contact with the strip 24. It will be seen that a length of the web 4 which is thus fed by the rollers 19 will be equal to the length of the object to be wrapped plus the length of the strip 24 that contacts the object. By selection of an appropriate length for strip 24, an appropriately long excess of wrapping material, over and above the length of the object, can be obtained. Moreover, objects of different length can be successively fed and the length of wrapping material will be automatically appropriately varied.
  • Guideway 18 has a downwardly opening concave portion 25.
  • the lower wall of this portion of the guideway has a resilient lip 26 adapted to engage and operate a switch 27. The web then passes the cutting mechanism and is gripped by the rollers 20.
  • the conveyor members on worktable 2 move objects to be wrapped, such as stacks of paper or the like, from the right to the left as shown in the drawing.
  • the feed of these objects is accelerated from rollers 14 to rollers 13 to belts 8, so that the objects are separated from each other.
  • the feed rollers 19 are actuated, which guide an uncut portion of web 4 through guideway 18 through feeding rollers 20.
  • the feeding rollers 19 stop while the feeding rollers 20 continue to rotate.
  • the tension of the web thus increases between the rollers 19 and 20 and the resilient lip 26 is drawn downwardly and operates the switch 27.
  • Switch 27 then causes the feed of fluid under pressure to cylinders 28 which actuate blade 21, which rises and cuts through the paper web 4.
  • the cut-off sheet is then moved farther by the rollers 20 and ultimately the roller 23.
  • the resilient lip 26 springs back and draws the forward end of the remainder of the web back from the blade, so that when the web is next advanced by the rollers 19, the leading edge can pass without difiiculty through the guideway near the cutting mechanism.
  • the rollers 19 are chain driven from rollers 20 through a pneumatically operated clutch while a pneumatically controlled brake provides for stopping the rollers 19 when the clutch is disengaged.
  • Fluid under pressure which in the illustrated embodiment is air but could be a liquid, is fed through the pipe 29 from a source of pressure fluid (not shown) and through a pressure-reducing valve 32, and thence to a pneumatically operated spool valve 30.
  • a source of pressure fluid not shown
  • a pressure-reducing valve 32 In the illustrated position of valve 30, air under reduced pressure through a branch conduit 31 maintains valve 30 in a position in which the air is fed to cylinders 28 of blade 21 in a direction to maintain the blade lowered or retracted from the path of the web.
  • a pneumatic cylinder 33 operates the brake and clutch in alternate positions thereby to stop or drive rollers 19, respectively.
  • a spool valve 34 controls the feed of compressed air to cylinder 33 and, in the position shown in the drawing, the cylinder 33 is in the position in which the rollers 19 are braked. Valve 34 in this position also feeds compressed air through conduit 35 to the valve operated by switch 27 which, in the drawing, is in the inactive position. Valve 34 is also acted upon by the relatively low pressure in the conduit 31.
  • valve 34 also vents conduit 35, so that movement of the switch 27 during this condition of the parts will have no eflfect at all. Therefore, if for example the supply roll resists turning and the tension rises in the advancing web between the rollers 19 and 20, the corresponding operation of the switch 27 will have no effect and the blade 21 will remain at rest. It is only when the advancing object has released the strip 24 and the latter returns to the position shown in FIG. 3, as does the valve 34 and the cylinder 33, that the conduit 35 is again supplied with compressed air, and actuation of of switch 27 under the influence of the increased tension resulting from the uncoupling and braking of the rollers 19 will shift the spool valve 30 to the upper position of FIG. 3, in which the blade 21 is raised to sever a sheet. After the sheet is severed, the tension in the web immediately disappears, so that switch 27 returns to its original or raised position, as does also the valve 30, so that the blade 21 is immediately returned to its lower position.
  • Apparatus for associating an object to be wrapped and an appropriate length of Wrapping material comprising conveyor means for advancing an object to be wrapped, means for advancing an indeterminate length of wrapping material, means for severing the wrapping material into separate lengths, said wrapping material advancing means comprising first feed roll means upstream of the severing means and second feed roll means downstream of the severing means with regard to the direction of travel of the wrapping material for feeding the wrapping material past the severing means, means responsive to the position of a portion of the advancing object to stop the rotation of the first feed roll means with the first feed roll means in contact with the wrapping material while the second feed roll means continue to rotate in contact with the wrapping material thereby to increase the tension in the wrapping material between the first and second feed roll means, means deflecting the path of said wrapping material between said first and second roll means from the shortest path between said first and second roll means, and means responsive to movement of said wrapping material toward said shortest path to actuate said severing means.
  • said deflecting means comprising a bent guideway between said first and second roll means and along which said wrapping material traverses a path longer than the shortest path between said first and second roll means, and means movably supporting at least the side of the guideway that faces said shortest path, said actuating means comprising switch means responsive to movement of said guideway side.
  • said severing means comprising a blade, fluid pressure means for moving the blade, said means comprising a valve to control the supply of pressure fluid to said blade-moving means.
  • said conveyor means including a conveyor belt, and means for driving said conveyor belt at the same linear speed as the peripheral speed of said second feed roll means.
  • Apparatus for associating an object to be wrapped and an appropriate length of wrapping material comprising conveyor means for advancing an object to be wrapped, means for advancing an indeterminate length of wrapping material, means for severing the wrapping material into separate lengths, said wrapping material advancing means comprising first feed roll means upstream of the severing means and second feed roll means downstream of the severing means with regard to the direction of travel of the wrapping material for feeding the wrapping material past the severing means, means responsive to the position of a portion of the advancing object to stop the rotation of the first feed roll means with the first feed roll means in contact with the wrapping material while the second feed roll means continue to rotate in contact with the wrapping material thereby to increase the tension in the wrapping material between the first and second feed roll means, and means responsive to said increase in tension to actuate said severing means, said conveyor means including a conveyor belt, and means for driving said conveyor belt at the same linear speed as the peripheral speed of said second feed roll means, said conveyor belt having an object-supporting upper run, and driven
  • Apparatus for associating an object to be wrapped and an appropriate length of wrapping material comprising conveyor means for advancing an object to be wrapped, means for advancing an indeterminate length of wrapping material, means for severing the wrapping material into separate lengths, said wrapping material advancing means comprising first feed roll means upstream of the severing means and second feed roll means downstream of the severing means with regard to the direction of travel of the wrapping material for feeding the wrapping material past the severing means, means responsive to the position of a portion of the advancing object to stop the rotation of the first feed roll means with the first feed roll means in contact with the wrapping material while the second feed roll means continue to rotate in contact with the Wrapping material thereby to increase the tension in the wrapping material between the first and second feed roll means, and means responsive to said increase in tension to actuate said severing means, said first feed roll means comprising a single pair of opposed rolls that contact the middle of the wrapping mate- References Cited UNITED STATES PATENTS 2,227,398 12/19

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Advancing Webs (AREA)
  • Basic Packing Technique (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
US603803A 1966-01-05 1966-12-22 Apparatus for associating objects and wrapping material Expired - Lifetime US3486293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6600102A NL6600102A (xx) 1966-01-05 1966-01-05

Publications (1)

Publication Number Publication Date
US3486293A true US3486293A (en) 1969-12-30

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ID=19795389

Family Applications (1)

Application Number Title Priority Date Filing Date
US603803A Expired - Lifetime US3486293A (en) 1966-01-05 1966-12-22 Apparatus for associating objects and wrapping material

Country Status (6)

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US (1) US3486293A (xx)
CH (1) CH457247A (xx)
DE (1) DE1511715B1 (xx)
GB (1) GB1153165A (xx)
NL (1) NL6600102A (xx)
SE (1) SE335094B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881297A (en) * 1973-09-04 1975-05-06 Sun Chemical Corp Bottom-wrap apparatus
US3943684A (en) * 1975-03-31 1976-03-16 Lotz Walter E Time delay for interleaving machine
US4557102A (en) * 1982-10-12 1985-12-10 Shigeru Ikemoto Hand wrapping apparatus
US5282347A (en) * 1991-11-12 1994-02-01 John Lysaght (Australia) Limited Wrapping apparatus
US6446418B1 (en) 1998-02-10 2002-09-10 Illinois Tool Works, Inc. Packaging device
US20160039552A1 (en) * 2014-08-06 2016-02-11 Ishida Co., Ltd. Stretch packaging machine
EP2928779B1 (en) 2012-11-28 2022-01-19 Sleegers, Hubertus, Theodorus, Wilhelmus Apparatus for placing articles on leaves

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278337B1 (it) * 1994-09-19 1997-11-17 Durst Phototechnik Spa Disposizione per la messa in tensione di materiale bobinato.
DE102011114152A1 (de) * 2011-09-23 2013-03-28 Winkler + Dünnebier Gmbh Verfahren und Anlage zur Kuvertierung eines zu verpackenden Gutes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227398A (en) * 1939-07-14 1940-12-31 Micro Westco Inc Wrapping material measuring device
US3001352A (en) * 1959-09-16 1961-09-26 Globe And Mail Ltd Apparatus for positioning an underwrap sheet beneath material to be wrapped
US3250053A (en) * 1962-10-02 1966-05-10 Cutler Hammer Inc Bottom wrap inserter
US3250052A (en) * 1962-10-02 1966-05-10 Cutler Hammer Inc Bottom wrap inserter
US3262241A (en) * 1963-03-04 1966-07-26 Cutler Hammer Inc Control system for article stack wrapper
US3296768A (en) * 1963-12-16 1967-01-10 Lotz Walter Interleaving machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705795C (de) * 1939-06-29 1941-05-09 Muller J C & Co Selbsttaetige Ausrueckvorrichtung fuer Druck- und Stanzautomaten o. dgl. Maschinen
US3207018A (en) * 1963-08-19 1965-09-21 Cutler Hammer Inc Jam sensing mechanism for a bottom wrap inserting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227398A (en) * 1939-07-14 1940-12-31 Micro Westco Inc Wrapping material measuring device
US3001352A (en) * 1959-09-16 1961-09-26 Globe And Mail Ltd Apparatus for positioning an underwrap sheet beneath material to be wrapped
US3250053A (en) * 1962-10-02 1966-05-10 Cutler Hammer Inc Bottom wrap inserter
US3250052A (en) * 1962-10-02 1966-05-10 Cutler Hammer Inc Bottom wrap inserter
US3262241A (en) * 1963-03-04 1966-07-26 Cutler Hammer Inc Control system for article stack wrapper
US3296768A (en) * 1963-12-16 1967-01-10 Lotz Walter Interleaving machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881297A (en) * 1973-09-04 1975-05-06 Sun Chemical Corp Bottom-wrap apparatus
US3943684A (en) * 1975-03-31 1976-03-16 Lotz Walter E Time delay for interleaving machine
US4557102A (en) * 1982-10-12 1985-12-10 Shigeru Ikemoto Hand wrapping apparatus
US5282347A (en) * 1991-11-12 1994-02-01 John Lysaght (Australia) Limited Wrapping apparatus
US6446418B1 (en) 1998-02-10 2002-09-10 Illinois Tool Works, Inc. Packaging device
EP2928779B1 (en) 2012-11-28 2022-01-19 Sleegers, Hubertus, Theodorus, Wilhelmus Apparatus for placing articles on leaves
US20160039552A1 (en) * 2014-08-06 2016-02-11 Ishida Co., Ltd. Stretch packaging machine
US9938028B2 (en) * 2014-08-06 2018-04-10 Ishida Co., Ltd. Stretch packaging machine

Also Published As

Publication number Publication date
DE1511715B1 (de) 1970-10-08
GB1153165A (en) 1969-05-29
NL6600102A (xx) 1967-07-06
CH457247A (de) 1968-05-31
SE335094B (xx) 1971-05-10

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