CA1075644A - Method and apparatus for applying labels to non-round containers - Google Patents

Method and apparatus for applying labels to non-round containers

Info

Publication number
CA1075644A
CA1075644A CA297,431A CA297431A CA1075644A CA 1075644 A CA1075644 A CA 1075644A CA 297431 A CA297431 A CA 297431A CA 1075644 A CA1075644 A CA 1075644A
Authority
CA
Canada
Prior art keywords
label
container
containers
vacuum drum
labels
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
CA297,431A
Other languages
French (fr)
Inventor
Wolfgang Hoffmann
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.)
B&H Manufacturing Co Inc
Original Assignee
B&H Manufacturing Co Inc
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 B&H Manufacturing Co Inc filed Critical B&H Manufacturing Co Inc
Application granted granted Critical
Publication of CA1075644A publication Critical patent/CA1075644A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C3/00Labelling other than flat surfaces
    • B65C3/06Affixing labels to short rigid containers
    • B65C3/08Affixing labels to short rigid containers to container bodies
    • B65C3/14Affixing labels to short rigid containers to container bodies the container being positioned for labelling with its centre-line vertical

Landscapes

  • Labeling Devices (AREA)

Abstract

"METHOD AND APPARATUS FOR APPLYING
LABELS TO NON-ROUND CONTAINERS"

ABSTRACT OF DISCLOSURE

Method and apparatus for continuous high speed appli-cation of labels to rectangular or other non-round containers wherein the containers are fed tangentially past a vacuum drum by means of a helical screw or star wheel. Label material is severed and fed in strips onto the vacuum drum, after which glue is applied over the exposed surface of each strip.
The vacuum drum and container feed move at the same linear speed and the vacuum drum has a resilient outer portion, such that each label will be brought into tangential contact with each container for pressure application thereto.

Description

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SPECIF-LCATION
This invention relates to a method and apparatus for the high speed application of labels to non-round containers, and is an improvement upon my IJ.S. Patent No. 3,765,991.
; In the aforesaid patent there are described machines for applying labels to round containers. Such machines typically util~ze a rotary drum disposed between container receiving and container discharge stations for holding the containers and carry-ing them past a glue applicator station, and a vacuum drum bearing labels, each having its trailing end provided with a line of glue.
The containers are gripped during this period to a~oid rotation about their individual axes, whereby as each container is presented to the tangent point of contact with the vacuum drum, the leading end of each label held thereon is applied to the container at the glue line previously applied thereto.j The container is then transported away from the vacuum drum and is caused to rotate about its axes at the container discharge station, which results in wrapping the label around the container.
The above described machines are obviously not suited to the application of labels to rectangular containers such as milk containers ~r the like, where each label is to be applied to a single flat surface of each container. Modification of such equipment, to adapt it for use with non-round contalners, has resulted in labeling apparatus of a high degree of complexity.
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For example, releasable clamps, feed bèlts and the like have been required in the container feed mechanism of such apparatus.
Substantial maintenance may also be required. ~lighly undesirable "do~ntime" for such maintenance and any necessary repairs may also be encoun~ered.
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The present invention provides a truly continuous high speed method and apparatus for application of labels to non-round containers while at the same time miniTnizing the complexity oE
the apparatus.
Broadly speaking, therefore, the present invention provides a method for applying labels to non-round containers comprising feeding severed labels onto a rotating vacuum drum having a resilient outer portion, applying glue over the e~posed surface of each label, and feeding non-round containers into tangential relationship with the vacuum drum following application of the glue such that a label will be applied by pressure of the vacuum drum to a substantially flat surface of each container, the linear speed of the container feed being the same as the rotation speed of the vacuum drum.
; The above method may be carried out by a label applying machine for applying labels to a face of a non-cylindrical container, such face presenting a relatively flat surface to the label applicator, the machine comprising a rotary cylindrical drum rotatable about its cylinder axis and adapted to pick-up, in succession, labels at a label receiving station, to grip each label ; received at such station on its cylindrical surface and to deliver the label to and release lt at a label applying station, the drum having on its cyllndrical surface which receives, holds and delivers the label a resilient compressible material in contact with the label, a continuous container feed adapted to convey ` containers in sequence to the label applying station with the relatively flat face to be labeled tangent to the drum at such station, the drum and container feed acting to cause the label and the aforesaid face of the container to move in the same direction
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and at the same linear component of speed at the point of label application, the machine also having rotary roller means down stream from and close to the label applying station, the roller means having a resilient surface and being so located that the resilient surface contacts each applied label as it is conveyed away from the label applying station and acts to srnooth the applied label and apply it more securely and evenly to the container.
The above and other features of the invention will be apparent from the ensuing description and the appended claims.
lOCertain embodiments of the invention are shown by way of example in the accompanying drawingsg in which:
Figure l is a view in side elevation o~ an apparatus in accordance with this invention showing a helical screw Eeed mechanism for bringing the containers into tangential relationship with the vacuum drum for application of a label to a flat surface of each container; and Figure 2 is a view simllar to that of Figure l but of a modification, in plan view, in which a star wheel is employed `! to feed containers into tangential relationship with the vacuum drum ~or application of labels to oval containers.
Referring now to Figure l, the labeling apparatus is generally designated by the reference numeral 10 and comprises a vacuum dru~ 11 on a shaft lla. A feed roller 12 on shaft 13 serves to supply a continuous label stock 14 ~hich has been suitably printed. The label stock is then severed into individual labels 15 by a cutting mechanism including a rotary cutter 17 having kniEe 18 bolted to a support, and a stationary but oscillating knife l9 held in a holder 21. Knife 19 is pivoted out of the way during part of each cycle to allow passage of label stock 14, but
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is held stationary at the time oE cutting, such oscillating operation being accomplished by the mechanism described below.
A leaf spring tnot shown) may be disposed behind the cutting mechanism to oscillate with the knife 19 and urge label stock toward both knives 19 and 18. Additionally, guide means 24 may be disposed in advance of the cutting means to ensure trouble-freP
feeding of the label stock into such cutting means.
Pivoting of the knife holder 21 to and from the position shown in Figure 1 can be accomplished by any suitable means, such as hydraulic cylinders, rods and stops.

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Rollers 31 and 32 rotatable on shafts 33 ~nd 34r respectively, grip label stock 14 just before an indi~id~a label 15 is cut therefrom and retain this ~rip until the leading end of the severed label is in contact with vacuum drum 11 and is held by vacuum thereon. Rolle~ 31 is driven and roller 32 is an idler roller whic'h may be biased a~ainst ; the driven roller by suitable biasing means.
Accordingly, label material 14 is ~ed by roller 12 through the cutting means, where it is severed into strips 15, and is then fed by rollers 31, 32 onto vacuum drum 11, which ` revolves to bring each label into contact with glue applicator -; 34. Glue is thereby applied over the exposed surace of each strip 15. The vacuum drum 11 has axial grooves 35 to receive any excess glue that may be present.
; ~urther re~olution of vacuum drum 11 in a clockwise direction, as shown by the arrow, brings each label into tan-gential contacting relationship with subs`tantially flat sur-face 37 of each container 38. The containers 38 are fed into tangential contact with vacuum drum Il by means of helical screw 41. Conventional screw feed mechanisms can be employed, such as that described in the aforesaid mentioned Patent ; No. 3,765,991. Screw portions 39 fit snugly against the walls o the containers, and screw shaft 40 similarly contacts the upper surface of the containers, to provide stabilizing support during the labeling operation.

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The containers 38 are conveyed by conveyor 42 toward vacuum drum ll, the conveyor having an opening at 43 such that the glued label 15 can be revolved into contact with the underside of the container 38. The vacuum drum has resilient portion ~4 for exerting sealing pressure against the label, the container 38 being held snugly between vacuum drum ll and the lower surface 45 of shaft 40 until completion of tangential contact with the vacuum clrum and return to the ~ other side of conveyor 42. on the right.
: 10 A large resilient compression roller ~6 and a substantially smaller compression roller 47, also resilient, are disposed immediately behind vacuum drum 11 for reinforcing the seal of each label against the flat surface 37 of each container 38. The compression rollers 46, 47 are especially preferred for use in application where hot melt adhesive is used to bond the label 15 to the containers 38. However, any suitable adhesive, whether ho~ melt or cold adhesive~ can be utilized in accordance with the method and apparatus of this invention.
Vacuum drum 11 is rotated at a speed in relation to the speed of the helical screw, such that each container 38 will be held relatively motionless with respect to the vacuum drum with the glue-containing label 15 held firmly therebetween to achieve the most effective contact between the label and the flat surface 37 of each container 3~.
That is to say, the linear component of motion of the sur-face of the container 38 is the same as the linear component of motion of the label 15 at the point of tangency of the label and the container. Also, pressure will Pg/ ;

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be applied by the vacuum drum over 100% of the su~ace area of the label. Accordingly, labels may be firmly bonded to containers such as one gallon milk containers in a continuous high speed procedure. Significantly, the container feed mechanism, such as helical screw 41, maintains contro1 of each container 38 throughout the entire labeling procedure;
i.e., from the leftmost point of helical screw 41 to the rightmost point thereof. Further drive belts, clamping means or the like, as re~uired in presently available appar-atus or applying labels to non-round containers, are not necessary.
Referring now to Figure 2, a similar labeling machine is shown at 10a but is modified to handle oval con-tainers 51. Label material 14 is fed from a feed roller 12 through rotary cutting means and the strips h~l,d by vacuum drum 11 as in accordance with Figure 1, as well as the patent and patent applications mentioned above. Similarly, glue applicator 34 applies a layer of glue to the exposed surface of each label 15. Oval containers 51 are fed in a tangential relation to vacuum drum 11 by means of star wheel 52 rotatahle on shaft 53, with each container 51 being held firmly in position on the star wheel such that the side 54 of each con-tainer 51 will be brought into contacting tangential relation-ship with the vacuum drum 11, with the label 15 held snugly therebetween. Vacuum drum 11 has a resilient portion 44, as noted in Figure 1, ~or applying sealing pressure to the label 15 against the side of the oval container 51.

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The vacuum drum 11 is rotated .in a cloc]cwise direction (as viewed in Figure 2) at a rate and the star wheel 52 is rotated in a counterclockwise directi.on (as viewed in Figure 2) at a rate such that each container 51 will be momentarily mo~tionless with respect to the vacuum drum 11 with label 15 firmly pressed against side 54 of such container 51. That is to sa~, the linear com-ponent of motion of the sur~ace of the container 51 is the same as the linear component of motion of the label 15 at the point of tangency of the label and the container.
To perfect the sealing of the labels to the oval containers, compression rollers 55 and 56 are provided behind the vac-uum drum 11. The compression rollers 55, 56 are formed of resilient material, such as foam rubber, capable of be.ing deformed to allow pressure to be exerted upon the curving side portions 57 of each container 51~ Teflon is prefer-ably used to cover the compression rollers, as such material resists adhesion to glue. Accordingly, pressure i5 exerted over the entire length of the label 15 to securely bond it to the side of oval container 51, making possible a contin-uous high speed application of labels to such containers.

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Claims (9)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A label applying machine for applying labels to a face of a non-cylindrical container, such face presenting a relatively flat surface to the label applicator, said machine comprising:
(:a) a rotary cylindrical drum rotatable about its cylinder axis and adapted to pick up, in succession, labels at a label receiving station, to grip each label received at such station on its cylindrical surface and to deliver the label to and release it at a label applying station, said drum having on its cylin-drical surface which receives, holds and delivers the label a resilient compressible material in contact with the label (b) a continuous container feed adapted to convey containers in sequence to said label applying station with the relatively flat face to be labeled tan gent to the drum at such station.
(c) said drum and container feed acting to cause the label and the aforesaid face of the container to move in the same direction and at the same linear com-ponent of speed at the point of label application (d) said machine also having rotary roller means down stream from and close to the label applying station, said roller means having a resilient surface and being so located that said resilient surface contacts each applied label as it is conveyed away from the label applying station and acts to smooth the applied label and apply it more securely and evenly to the container.--
2. The machine of Claim 1 wherein the container feed is a helical feed screw which positively grips and holds each container with its relatively flat surface in fixed relation to the label at the label applying station and in fixed relation to the rotary roller means.--
3. The machine of Claim 2 wherein the helical feed screw conveys the containers to, through and beyond the label applying station and said roller means in a straight line.--
4. The machine of Claim 1 wherein said contain-er feed includes a rotary feed having pockets for trans-porting containers to, through and beyond the label apply-ing station and said roller means, said pockets acting to hold the relatively flat surface of each container in fixed relation tot he label at the label applying station and in fixed relation to the rotary roller means.--
5. The machine of Claim 1 wherein said rotary roller means comprises a pair of rollers one in advance of the other.--
6. A method for applying labels to non-round containers comprising feeding severed labels onto a rotat-ing vacuum drum having a resilient outer portion, applying glue over the exposed surface of each label, and feeding non-round containers into tangential relationship with the vacuum drum following application of the glue such that a label will be applied by pressure of the vacuum drum to a substantially flat surface of each container, the linear speed of the container feed being the same as the rotation speed of the vacuum drum.
7. The method of Claim 6 wherein a helical screw is used to bring the non-round containers into tan-gential relationship with the vacuum drum.
8. The method of Claim 6 wherein a star wheel is used to bring the non-round containers into tangential relationship with the vacuum drum.
9. The method of Claim 6 additionally comprising the step of providing compression rollers following applica-tion of the labels to the containers for reinforcing the seal between the labels and containers.
CA297,431A 1977-02-23 1978-02-22 Method and apparatus for applying labels to non-round containers Expired CA1075644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77132877A 1977-02-23 1977-02-23

Publications (1)

Publication Number Publication Date
CA1075644A true CA1075644A (en) 1980-04-15

Family

ID=25091465

Family Applications (1)

Application Number Title Priority Date Filing Date
CA297,431A Expired CA1075644A (en) 1977-02-23 1978-02-22 Method and apparatus for applying labels to non-round containers

Country Status (6)

Country Link
JP (1) JPS53121600A (en)
AU (1) AU3339278A (en)
CA (1) CA1075644A (en)
DE (1) DE2807792A1 (en)
GB (1) GB1597421A (en)
ZA (1) ZA78976B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929491B2 (en) * 1979-12-29 1984-07-20 澁谷工業株式会社 label pasting equipment
DE3509987A1 (en) * 1985-03-20 1986-10-02 Krones Ag Hermann Kronseder Maschinenfabrik, 8402 Neutraubling Labelling apparatus for vessels or the like
GB8606628D0 (en) * 1986-03-18 1986-04-23 Waddington John Plc Article feeding devices
GB2208840B (en) * 1987-08-13 1991-12-11 New Jersey Machine Inc Labelling system
AU582504B1 (en) * 1987-10-02 1989-03-23 Astra Pharmaceuticals Pty Ltd Label applicator
JP2550736Y2 (en) * 1993-09-10 1997-10-15 花王株式会社 Thermal labeler

Also Published As

Publication number Publication date
DE2807792A1 (en) 1978-08-24
ZA78976B (en) 1979-01-31
JPS53121600A (en) 1978-10-24
AU3339278A (en) 1979-08-23
GB1597421A (en) 1981-09-09

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