EP0166078B1 - Swingable claw for wrapping machine - Google Patents

Swingable claw for wrapping machine Download PDF

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Publication number
EP0166078B1
EP0166078B1 EP19850102194 EP85102194A EP0166078B1 EP 0166078 B1 EP0166078 B1 EP 0166078B1 EP 19850102194 EP19850102194 EP 19850102194 EP 85102194 A EP85102194 A EP 85102194A EP 0166078 B1 EP0166078 B1 EP 0166078B1
Authority
EP
European Patent Office
Prior art keywords
claw
claw member
support plate
swingable
product
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
EP19850102194
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0166078A1 (en
Inventor
Masao Funo
Noburo Yoshikawa
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco 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 Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP0166078A1 publication Critical patent/EP0166078A1/en
Application granted granted Critical
Publication of EP0166078B1 publication Critical patent/EP0166078B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/08—Reciprocating or oscillating folders
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/12—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube

Definitions

  • the present invention relates to a wrapping machine having a swingable claw as indicated in the preamble of the claim.
  • a conventional wrapping process is effected as, for example, shown in Figs. 2 to 8.
  • soft wrapping paper P cut to prescribed dimensions is moved down into a wrapping passage.
  • a product A to be wrapped such as a pile of cigarettes is pushed forward into the soft wrapping paper P by a pusher 1 and the product and the paper are passed through between an upper and a lower guide plates 16 (shown in Fig. 9) so that the paper P is wound as U on the product A.
  • the product A and the paper P are pushed forward further by the pusher 1 so that a swingable claw 2 waiting in a closed position performs the front end face folding P, of the paper P, as shown in Fig. 4.
  • the product A and the paper P are then pushed forward furthermore so that a guide plate 3 holds the end face folding P, of the claw 2.
  • the pusher 1 finishes pushing the product A and the paper P forward and the swingable claw 2 is opened to a non-folding position, as shown in Fig. 5.
  • a lower portion folding plate 4 is then moved up to perform a lower portion folding P 2 , as shown in Fig. 6.
  • An upper portion folding plate 5 is then moved down to perform an upper portion folding P 3 , and the lower portion folding plate 4 is simultaneously moved down, as shown in Fig. 7.
  • the swingable claw 2 is then turned to the closed position to perform a rear end face folding P 4 , as shown in Fig. 8.
  • FIG. 1 Another wrapping means similarly operated and comparable in performing the wrapping process is comprised in the art according to US 2 584 529.
  • said machine comprises stationary flaring ears, supported by rigid vertical sideplates respectively, which engage the leading vertical wall portions at each side of the bag, thus forming the respective leading tucks in the process of conveying the product through their wrapping passage.
  • a swingable resilient claw mechanism is provided at both sides of the wrapping line.
  • the claw means merely provided for performing the rear end face folding along the vertical rear edge of the product, comprises an arcuate plate member which is connected hingedly to a radial arm of a rotatable sleeve supported by a pivotable rock shaft which, via an associated fixed lever, makes the radial arm with the arcuate plate connected by a hinge swing inwardly in order to perform folding operation.
  • While the arcuate plate is normally moved concentrically, during the formation of the tuck it may yield as required by respective preloading springs, urging the arcuate plate in a home position with respect to the associated radial arm, said home position being adjustable by a setting screw provided at the rear end of the arcuate plate and abutting against the radial arm to which the arcuate plate is hingedly connected.
  • a return spring is provided which enables the freely rotatable sleeve with the radial arm and the associated arcuate plate to return to its withdrawn home position after the forming of the tuck has been completed.
  • FIG. 953 551 Another wrapping device for folding sidewardly projecting flaps of wrapping material is disclosed in GB-PS 953 551.
  • the apparatus shown therein has a swingable arcuate claw member and, hingedly connected thereto, a leading folding roller arrangement controlled by a guide roller engaging a cam control profile supported by the wrapping device.
  • the present invention presents a wrapping machine, the engaging claw member of which, in forming the vertical rear edge folding, directly engages the sidewardly projecting wrapping paper flap along the folding line at the rear vertical edge of the product.
  • the swingable claw includes a rigid arm which has an integral support plate extending substantially perpendicularly to said arm and bearing a pivot pin for pivotally supporting said engaging claw member at the rear portion of the claw member with respect to the direction of movement of the product, the free front end of said claw member being urged away from said shaft by a helical spring disposed between the support plate and the free front portion of the engaging claw member such that the same is kept spaced from said support plate in a withdrawn inoperative position of the claw, the degree of opening between said free front end of the claw member and the support plate being adjusted by a setting screw means, disposed opposite to the spring with respect to said pivot pin such that the outer edge of the free front end of the claw member comes into contact with a folding line of the wrapping paper when the claw is swivelled inwardly.
  • FIG. 1 the rear portion of a swingable claw 12 with regard to the direction of proceeding of a product A to be wrapped is pivotally coupled by a pin 13 to the support plate 11a of a turnable arm 11 secured on a turning shaft 10, and the free front end 12a of the claw 12 is urged in such a direction as to open away from the support plate 11a, by a helical spring 14 provided between the free front end 12a and the support plate 11 a.
  • the degree of opening of the swingable claw 12 from the support plate 11a a is adjusted by a stopper 15 secured on the rear portion of the support plate by a screw.
  • a support mechanism is provided for the pasted upper folded portion P 3 of soft wrapping paper P and an upper guide plate 16 has a vacuum suction port 16a.
  • paste 17 applied to the upper folded portion P 3 of the paper P is prevented from irregularly clinging to other portions as the paper P is wound as U on the product A.
  • the turnable arm 11 and the swingable claw 12 are moved between an opened position shown by a full line in Fig. 1 and a closed position shown by a two-dot line therein, respectively.
  • the closed position the free end 12a of the swingable claw 12 is closed by the wrapped product A against the helical spring 14.
  • the swingable claw 12 When the swingable claw 12 is in the closed position and the wrapped product A is pushed out by a pusher, the free end 12a of the swingable claw is pushed down by the wrapped product A against the helical spring 14 and simultaneously performs a front end face folding P l .
  • the outer edge Q of the free end 12a whose degree of opening is previously adjusted by the stopper 15 takes a locus to come into contact with the folding line P 4 ' of the folded end face portion P 4 of the wrapping paper P at the rear of the wrapped product A so that the swingable claw 12 is moved to the closed position shown by the two-dot line in Fig. 1, as the claw performs the rear end face folding P 4 of the wrapping paper P and is simultaneously pushed down by the wrapped product A.
  • the rear portion of the swingable claw 12 is pivotally coupled to the support plate 11a of the turnable arm 11 and the free end 12a of the swingable claw is urged by the spring 14 in such a direction as to open and is normally kept at a prescribed degree of opening, the rear end face folding of the soft wrapping paper P on the wrapped product A is neatly performed along the folding line of the paper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP19850102194 1984-06-19 1985-02-27 Swingable claw for wrapping machine Expired EP0166078B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9024584U JPS615701U (ja) 1984-06-19 1984-06-19 包装機の包装紙折込爪装置
JP90245/84U 1984-06-19

Publications (2)

Publication Number Publication Date
EP0166078A1 EP0166078A1 (en) 1986-01-02
EP0166078B1 true EP0166078B1 (en) 1988-02-24

Family

ID=13993112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850102194 Expired EP0166078B1 (en) 1984-06-19 1985-02-27 Swingable claw for wrapping machine

Country Status (3)

Country Link
EP (1) EP0166078B1 (enrdf_load_stackoverflow)
JP (1) JPS615701U (enrdf_load_stackoverflow)
DE (1) DE3561643D1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5694738A (en) * 1996-07-22 1997-12-09 Tokyo Automatic Machinery Works, Ltd. Body flap folding apparatus in packaging machine
EP0822142B1 (en) * 1996-07-23 2000-04-05 Tokyo Automatic Machinery Works, Ltd Flap folding apparatus in packaging machine
JP4548580B2 (ja) * 2004-06-02 2010-09-22 東洋製罐株式会社 袋口折込装置及び袋口折込方法
CN115196105B (zh) * 2022-08-23 2025-04-22 桂林航天工业学院 蛛形仿形食品包装机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE280452C (enrdf_load_stackoverflow) *
US2584529A (en) * 1950-04-28 1952-02-05 Savannah Sugar Refining Corp Packaging machine
AT213335B (de) * 1959-10-01 1961-02-10 Hedwig Gamble Vorrichtung zum Falten der stirnseitigen Verschlußklappen an der Umhüllung von im wesentlichen prismatischen Verpackungsstücken

Also Published As

Publication number Publication date
EP0166078A1 (en) 1986-01-02
JPH018487Y2 (enrdf_load_stackoverflow) 1989-03-07
JPS615701U (ja) 1986-01-14
DE3561643D1 (en) 1988-03-31

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