EP0111210A1 - Dispositif d'enveloppement d'articles avec une feuille en matière plastique ou similaire - Google Patents

Dispositif d'enveloppement d'articles avec une feuille en matière plastique ou similaire Download PDF

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Publication number
EP0111210A1
EP0111210A1 EP83111686A EP83111686A EP0111210A1 EP 0111210 A1 EP0111210 A1 EP 0111210A1 EP 83111686 A EP83111686 A EP 83111686A EP 83111686 A EP83111686 A EP 83111686A EP 0111210 A1 EP0111210 A1 EP 0111210A1
Authority
EP
European Patent Office
Prior art keywords
welding
conveyor belt
objects
crank mechanism
bars
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.)
Granted
Application number
EP83111686A
Other languages
German (de)
English (en)
Other versions
EP0111210B1 (fr
Inventor
Claus K. Pfankuch
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.)
Individual
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Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0111210A1 publication Critical patent/EP0111210A1/fr
Application granted granted Critical
Publication of EP0111210B1 publication Critical patent/EP0111210B1/fr
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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1313—Cutting element simultaneously bonds [e.g., cut seaming]

Definitions

  • the invention relates to a device for wrapping objects with a film made of plastic or the like, with a conveyor belt which feeds the wrapped objects to and from a moving-up and down welding device which has a transverse and at least one longitudinal welding bar.
  • two film webs are normally drawn off from two corresponding supply rolls and fed to the welding device.
  • the two objects to be wrapped or packaged are introduced into the space between the two foils.
  • film is therefore understood to mean both a folded film and two films fed separately one above the other.
  • the weld is preferably a separating weld so that the wrapped and packaged objects are led out of the device for further handling as individual packages.
  • the welding is carried out by welding bars that are pressed onto the film from above. Corresponding counter bearings are located below the film.
  • the conveying process is interrupted during the welding, i.e. the method of operation is discontinuous in order to avoid that the welding bars have to be moved with the film and the objects during the short welding process.
  • a device for processing and welding pre-cut pieces of tubing made of plastic film, which are processed into sacks or bags, is known.
  • the tube pieces are fed to a welding device on a table transversely to their longitudinal axis, ie with their openings lying to the side.
  • the welding device is provided with cross welding bars, which are moved down onto the hose sections to produce a weld seam - no separating weld seam - and to advance the hose sections during this welding process to the next processing station on the table top, whereby the next processing station in turn has a welding device to complete the welding seams is.
  • the cross welding bars are driven and moved with the help of crank drives, which are arranged below the table top.
  • the invention is based on the object of providing a device of the type mentioned at the outset which operates continuously and nevertheless enables safe separation of the encased and welded objects.
  • This object is achieved in that the welding bars are attached to a slide which can be pushed back and forth with respect to the conveying direction, and that the slide is guided on a frame running around the conveyor belt, which (frame) can be moved up and down by a first crank mechanism and that the conveyor belt for separating the encased and welded objects is driven at a speed which is somewhat higher than the speed at which the film is fed.
  • the arrangement on a slide makes it possible to move not only the cross welding bars but also the longitudinal welding bars during the welding process with the conveyor belt as well as with the film or the objects in order to avoid a relative movement between these parts. Foil and objects are transported through the conveyor belt and the welding bars follow this movement, so that an interruption of the conveyor movement is not necessary.
  • the movement of the carriage, both the up and down movement and the back and forth movement is preferably carried out by crank drives which are arranged below the conveyor belt and have a common drive. This common drive is then synchronized with the drive of the conveyor belt.
  • the conveyor belt runs a little faster than it corresponds to the feed speed of the film, there is a slippage between the conveyor belt and the film as long as the separation weld is not completely made, that is, as long as the separation has not taken place, such that the conveyor belt is pulled out slightly below the film and the objects lying between it. Only when the welding enables separation, are the individual packages then moved away from each other and transported out of the system at the speed of the conveyor belt.
  • the slightly higher speed of the conveyor belt ensures that the physical separation made by the cross-welding bars is increased and carried out one hundred percent.
  • the edge strips, which are waste, generated by the transverse welding beam or beams can be suctioned off.
  • the second crank mechanism is provided with a link which enables the stroke to be adjusted makes it possible in particular to adjust the spacing of the cross-welding bars from one another and thus to adapt to the speed of the conveyor belt.
  • the adjustment of the cross welding bar allows adaptation to different dimensions of the objects to be wrapped.
  • the conveyor belt advantageously runs over an abutment plate made of mineral material, for example glass, which enables the conveyor belt to move slightly relative to it, has a smooth and very flat surface and forms a good, firm and uncompromising counter-bearing for the welding beams.
  • the device shown in the drawing has a machine frame 1 on which corresponding receptacles and bearings for two supply rolls 2 and 3 for foils 4 and 5 are provided.
  • the foils are guided over deflection rollers 6 into the area in which a feed conveyor 7 with pivotable carriers 7a ends.
  • This conveyor 7 with the aid of its drivers 7a, serves to feed the objects K to be packaged, which are introduced into the space between the two foils.
  • the objects rest on guide rails 8, between which the drivers 7a engage. After leaving the area of the guide rails, the drivers 7a are pivoted back.
  • the lower film 5 is fed around the deflection roller 10 of an endless conveyor belt 11 from below, whereas the upper film 4 is fed around the deflection wheel 6 from above.
  • the conveyor belt 11 runs somewhat faster than the foils 4 and 5, so that as long as the welding has not taken place, there is little slip, i.e. to a relative movement between conveyor belt 11 and foils. 4 and 5 is coming.
  • the welding device consists of a transverse welding bar 16 and two longitudinal sealing bar 17.
  • the Que y sealing bar 16 generates transverse welding seams 9.
  • the longitudinal sealing bars 17 generate the continuously lateral welds. These weld seams are separating weld seams, that is to say, it is not only at the same time that the abutting foils are welded together, but also that they are separated. As a result of that the conveyor belt 11 runs somewhat faster, this separation produced during welding is enlarged somewhat and thus secured one hundred percent. After the complete separation, the packaged objects move at the speed of the conveyor belt 11.
  • the side stripes can be removed by suction devices, not shown.
  • the welding bars 16 and 17 are arranged on a carriage which consists of cross struts 13 and 14 which are connected to one another by a spindle 15 and are adjustable relative to one another.
  • the cross struts 13 and 14 are displaceable on longitudinal rods 19 with the aid of ball guides, specifically in the direction of the movement of the conveyor belt 11 and in the opposite direction.
  • the upper longitudinal bars 19 together with posts 18, cross bars 20, lower longitudinal bars 21 and cross connections 23 form a spatial frame. This is guided on the posts 18 with guides 22 and can thus be moved up and down.
  • the frame is moved up and down by a crank or eccentric drive with an eccentric disk 25 on which an eccentric follower roller 26 rests. This is rotatably mounted on the cross connection 23.
  • the eccentric disc 25 is fastened with the aid of a hub 32 on a shaft 35 which is mounted in the machine frame 1.
  • the shaft 35 is provided with two sprockets 34. This can best be seen in FIG. 3.
  • a second crank drive which consists of a crank disk 31 and a connecting rod 27, provides for the reciprocating movement of the slide essentially formed by the cross struts 13 and 14.
  • the connecting rod 27 is displaceable in a link 28 of the crank disk 31 for adjusting the stroke.
  • the connecting rod is formed in two parts in the embodiment shown, ie the two parts of the connecting rod cranked to one side are each connected to a vertical strut 24 at 29.
  • Each vertical strut 24 is firmly connected to the cross bar 13 above.
  • the vertical struts 24 are practically part of the carriage and can be moved back and forth on the longitudinal rods 19 and 21.
  • the two crank drives are driven together via chains 30 which run over the chain wheels 34 and over a chain wheel 33 which is seated on a shaft 36.
  • the shaft 36 carries the crank disk 31.
  • the two crank mechanisms i.e. the eccentric disk 25 and the crank disk 31 can be arranged on a shaft, for example on the shaft 35.
  • the connecting rod is shorter and it is not necessary to split it into two laterally cranked parts, as shown in FIG. 2.
  • the conveyor belt 11 runs with its upper belt on a plate 11a made of mineral material, preferably glass. This not only allows easy movement, but at the same time creates a good and stable abutment for the welding bars during the welding process.
  • the two films 4 and 5 are fed from the supply rolls 2 and 3 so that the Objects K lie between them.
  • the entire spatial frame in the guides 22 is moved downward by the first crank mechanism.
  • the eccentric 25 of the first crank mechanism occupies its highest position.
  • the eccentric follower roller 26 follows the eccentric disk 25 due to its own weight.
  • the setting through the link 28 of the second crank mechanism is such that when the welding bars 16, 17 reach the foils and carry out the electrical resistance welding, the slide with the welding bars is moved in synchronism with the foils and the objects.
  • the first crank mechanism ensures that the welding bars are moved up again with the entire frame. At the same time, the slide is moved back into its starting position by the second crank mechanism. The next weld can begin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP83111686A 1982-12-07 1983-11-23 Dispositif d'enveloppement d'articles avec une feuille en matière plastique ou similaire Expired EP0111210B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3245156 1982-12-07
DE3245156 1982-12-07

Publications (2)

Publication Number Publication Date
EP0111210A1 true EP0111210A1 (fr) 1984-06-20
EP0111210B1 EP0111210B1 (fr) 1986-10-29

Family

ID=6179966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111686A Expired EP0111210B1 (fr) 1982-12-07 1983-11-23 Dispositif d'enveloppement d'articles avec une feuille en matière plastique ou similaire

Country Status (4)

Country Link
US (1) US4563860A (fr)
EP (1) EP0111210B1 (fr)
CA (1) CA1245541A (fr)
DE (1) DE3367190D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168922A (en) * 1984-12-20 1986-07-02 Focke & Co Apparatus for producing (tobacco) bags
EP0537844A1 (fr) * 1991-10-14 1993-04-21 SITMA S.p.A. Appareil pour étirer un film continu en plastique dans une machine d'emballage
DE102012103352B4 (de) * 2011-04-18 2014-07-03 Beck Packautomaten Gmbh & Co. Kg Verpackungsmaschine mit mitlaufender Quertrennschweißeinrichtung
CN108945636A (zh) * 2018-04-20 2018-12-07 深圳市卓翼科技股份有限公司 封口机及封口方法
CN109606847A (zh) * 2018-12-25 2019-04-12 福州大学 一种湿纸巾外包装双工位同步热封剪切机构及其工作方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269123A (en) * 1989-12-29 1993-12-14 Massimo Marchesini Device for sealing a film onto a blister band, particularly a polypropylene band
ES2112131B1 (es) * 1994-04-29 1998-11-01 Ulma S Coop Ltada Mejoras introducidas en maquinas envolvedoras de bandejas con film.
EP0796168B1 (fr) * 1994-12-06 1998-05-20 SIG Schweizerische Industrie-Gesellschaft Dispositif de scellement transversal pour machines a former et a remplir des sachets tubulaires
US5732529A (en) * 1996-03-29 1998-03-31 Ethicon, Inc. Apparatus for feeding foil stock in a process for making sealed sterile packages
DE10347775B4 (de) * 2003-10-15 2006-07-13 Uhlmann Pac-Systeme Gmbh & Co. Kg. Arbeitsstation
WO2005108209A1 (fr) * 2004-05-07 2005-11-17 I.M.A. Industria Macchine Automatiche S.P.A. Emballeuse thermoformeuse permettant de produire des emballages alveoles
ITMI20080392A1 (it) * 2008-03-10 2009-09-11 Sitma Spa Gruppo confezionatore ad alta velocita' e macchina confezionatrice dotata di tale gruppo
CN103387066A (zh) * 2013-08-13 2013-11-13 新麦机械（无锡）有限公司 一种用于扎口机与输送机同步的连杆机构
WO2018039388A1 (fr) * 2016-08-23 2018-03-01 Automated Solutions, Llc Dispositifs d'étanchéité transversale pour systèmes de formation d'emballages et procédés associés
CN109625470A (zh) * 2018-12-28 2019-04-16 上海三渠智能科技有限公司 带有菱形切刀的包装袋废边切除装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1331077A (fr) * 1962-08-10 1963-06-28 Gram Brdr As Procédé d'emballage d'objets et appareils pour la mise en oeuvre de ce procédé
DE2025505A1 (de) * 1969-05-27 1971-02-11 Cavanna, Mario Romagnano Sesia Novara (Italien) Vorrichtung zum Querschweißen von Kunst Stoffbahnen in Verpackungsmaschinen
US3564810A (en) * 1968-05-27 1971-02-23 Ollie B Wilson Jr Wrapping method and apparatus
USRE29043E (en) * 1966-12-02 1976-11-23 Kabushiki Kaisha Seisan Nihon Sha Method and apparatus for manufacturing synthetic resin bags having occludent means in the inside surface thereof
US4141196A (en) * 1977-10-11 1979-02-27 Oliver Machinery Company Seal wrapping machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339337A (en) * 1964-10-08 1967-09-05 Raymond I Rapp Envelope, apparatus and method for making and filling envelopes
US3511024A (en) * 1968-02-05 1970-05-12 Marbury S Machine Works Machine for wrapping articles
DE2008595C2 (de) * 1969-02-26 1983-05-05 Sitma International S.A., Luxembourg Vorichtung zum Schweißen und Trennen von Kunststoffolien an einer Verpackungsmaschine
GB1523122A (en) * 1974-10-12 1978-08-31 Metal Box Co Ltd Packaging machines
IT1028456B (it) * 1975-01-17 1979-01-30 Sitund Holdings S A Dispositivo di saldatura e taglio per macchine da imballaggio
DE3234227C2 (de) * 1981-12-01 1985-05-09 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Anbringen von Querschweißnähten oder Querschweißtrennähten an kontinuierlich geförderten schlauch- oder halbschlauchförmigen Folienbahnen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1331077A (fr) * 1962-08-10 1963-06-28 Gram Brdr As Procédé d'emballage d'objets et appareils pour la mise en oeuvre de ce procédé
USRE29043E (en) * 1966-12-02 1976-11-23 Kabushiki Kaisha Seisan Nihon Sha Method and apparatus for manufacturing synthetic resin bags having occludent means in the inside surface thereof
US3564810A (en) * 1968-05-27 1971-02-23 Ollie B Wilson Jr Wrapping method and apparatus
DE2025505A1 (de) * 1969-05-27 1971-02-11 Cavanna, Mario Romagnano Sesia Novara (Italien) Vorrichtung zum Querschweißen von Kunst Stoffbahnen in Verpackungsmaschinen
US4141196A (en) * 1977-10-11 1979-02-27 Oliver Machinery Company Seal wrapping machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168922A (en) * 1984-12-20 1986-07-02 Focke & Co Apparatus for producing (tobacco) bags
EP0537844A1 (fr) * 1991-10-14 1993-04-21 SITMA S.p.A. Appareil pour étirer un film continu en plastique dans une machine d'emballage
US5285621A (en) * 1991-10-14 1994-02-15 Sitma S.P.A. Apparatus for stretching a continuous plastics film in a packaging machine
DE102012103352B4 (de) * 2011-04-18 2014-07-03 Beck Packautomaten Gmbh & Co. Kg Verpackungsmaschine mit mitlaufender Quertrennschweißeinrichtung
CN108945636A (zh) * 2018-04-20 2018-12-07 深圳市卓翼科技股份有限公司 封口机及封口方法
CN108945636B (zh) * 2018-04-20 2024-05-17 深圳市卓翼科技股份有限公司 封口机及封口方法
CN109606847A (zh) * 2018-12-25 2019-04-12 福州大学 一种湿纸巾外包装双工位同步热封剪切机构及其工作方法
CN109606847B (zh) * 2018-12-25 2020-09-01 福州大学 一种湿纸巾外包装双工位同步热封剪切机构及其工作方法

Also Published As

Publication number Publication date
US4563860A (en) 1986-01-14
CA1245541A (fr) 1988-11-29
DE3367190D1 (en) 1986-12-04
EP0111210B1 (fr) 1986-10-29

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