EP0307734A2 - Machine pour fabriquer des sacs ou des emballages semblables à partir d'une feuille en plastique flexible et thermoplastique - Google Patents

Machine pour fabriquer des sacs ou des emballages semblables à partir d'une feuille en plastique flexible et thermoplastique Download PDF

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Publication number
EP0307734A2
EP0307734A2 EP88114332A EP88114332A EP0307734A2 EP 0307734 A2 EP0307734 A2 EP 0307734A2 EP 88114332 A EP88114332 A EP 88114332A EP 88114332 A EP88114332 A EP 88114332A EP 0307734 A2 EP0307734 A2 EP 0307734A2
Authority
EP
European Patent Office
Prior art keywords
brake
feed roller
toothed belt
clutches
pair
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.)
Withdrawn
Application number
EP88114332A
Other languages
German (de)
English (en)
Other versions
EP0307734A3 (fr
Inventor
Franz Bendig
Johannes Bendig
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
Original Assignee
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0307734A2 publication Critical patent/EP0307734A2/fr
Publication of EP0307734A3 publication Critical patent/EP0307734A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents

Definitions

  • the invention relates to a machine according to the preamble of claim 1 according to DE-A-23 28 376.
  • the two feed rollers arranged behind the film compensation oscillator in the direction of travel of the film web are arranged at a distance from one another, so that in the area between the two feed rolls the film web can be kept at a constant film tension, so that the one following the second feed roller Separating and welding device in its action on the film web with respect to the tension of the film web always finds the same conditions.
  • tools that act on the film web in the space between the two preferred rollers for example making incisions in the film web, applying reinforcements to the film web or other dimensions Carry out measures that take place in the manufacture of bags and sacks before cross-welding and cross-cutting.
  • the present invention is based on the object to provide such an arrangement and design of the clutch and the brake in a film processing machine of the aforementioned type with two spacing preferred rollers, which is subject to virtually no wear and works quickly and precisely.
  • the solution according to the invention to provide at least two clutches on one side, each clutch driving the feed roller assigned to it, and to provide at least two brakes on the opposite side, each brake braking the feed roller assigned to it, has the advantage that now smaller clutches and smaller-sized brakes can be used, which are correspondingly less stressed as a single clutch or as an individual brake than a larger-sized clutch or brake that has to actuate two feed rollers. Because the two available Clutches and brakes can be dimensioned smaller, it follows that the sum of their contact surfaces for engaging or braking is greater than a single clutch or single brake which is comparable in performance. Therefore, the two clutches and brakes provided according to the invention do not need any special measures for their cooling.
  • This synchronous course of all four clutches causes that differences in wear of a single clutch compared to the others are compensated for by the synchronous running of all four clutches. Since the four clutches are actuated by a common electronic control, it is possible to dimension the opening force and closing force of the clutch so strongly that the time for engaging and disengaging the clutch and accordingly also the time for engaging and disengaging the opposite four brakes is very short. If the action areas of the clutches or action areas of the brakes have different widths to one another as a result of different wear, this results in that these differences are practically compensated for by the rapid engagement and disengagement.
  • the solution according to the invention to assign a pair of clutches and a pair of brakes to each of the two preferred rollers and to connect at least the two pairs of clutches by means of a drive common to them, so that this also gives the preferred roller a common drive, results in minimal wear and tear over a longer period of time a constant and exact actuation of the feed rollers for a long period of time. Since the masses of the respective individual clutches and the respective individual brakes are small, this causes solution according to the invention also a correspondingly quick engagement and disengagement or braking.
  • the rapid engagement and disengagement or braking also known as a fast switching sequence - also results in an increase in performance, which can generally be stated as 25 to 30%.
  • the two coupling pairs on one machine side are fastened to a common support plate and the two brake pairs on the opposite machine side to a common support plate.
  • This support plate does not have to be a plate in the literal sense, but can also represent a structure of individual elements.
  • Another proposal according to the invention is that the two brakes of a brake pair are connected by a toothed belt that wraps around them.
  • FIG. 1 shows a film processing machine 10 with the two side walls 11 and 12, the rear side 13 and the front side 14.
  • the supply roll 16 for the film web 17 to be processed is provided on cantilevers 15, 15a.
  • This film web can be a act single-layer web, which is only cut, or a two-layer web, for example in the form of a tube or a half-tube, that is, that a longitudinal edge of the tube is cut open.
  • the film processing machine 10 works according to the discontinuous method.
  • a film oscillator arrangement designated 18, which is known and can have the appropriate forms of training.
  • 19 denotes a first feed roller arranged in the running direction of the film web 17 to be processed and 20 denotes a second feed roller located at a distance therefrom. Both feed rollers run synchronously. They are driven on the machine side 11 via a clutch arrangement, designated overall by 21, and braked by a brake arrangement present on the machine side 12, designated overall as 22 in FIG.
  • the separating and welding device which according to the exemplary embodiment consists of the upper welding bar 23 with the welding wire 23a and the lower counter-support 24 and the cutting knife 25 running transversely to the longitudinal direction of the hose path, is present after the second preferred roller 20. and / or welding device is known.
  • the present invention is concerned with the driving and braking of the first feed roller 19 and the second feed roller 20 and causes these two feed rollers to always run synchronously, largely without wear and maintenance.
  • the aforementioned coupling unit 21 is located on the machine side 11. It consists of the carrier plate 26, which is fastened to the machine frame.
  • the carrier plate carries four clutches 27, 27a and 28 and 28a, these clutches each having pulleys 29, 29a and 30 and 30a projecting forward from the carrier plate. They are also provided with a respectively assigned flywheel mass 31, 31a and 32, 32a, which can be seen in their spatial arrangement, in particular from FIG. 5.
  • the aforementioned couplings are combined in pairs to form a coupling pair 27, 27a and coupling pair 28, 28a.
  • the pulleys of the coupling pair 27, 27a are partially wrapped in a toothed belt 33, which drives the second feed roller 20 via a gear 34.
  • a tensioning roller 35 is present.
  • the opposite coupling pair 28, 28a with the pulleys 30, 30a is partially wrapped around by the toothed belt 36, which drives the first feed roller 19 via a toothed wheel 37.
  • the gears that over the The aforementioned belts 33 and 36 drive the feed rollers are in turn driven by an electric motor 37, which is provided with a toothed wheel 37a, which drives the toothed belt 37b, which partially loops around the flywheels 31, 31a and 32, 32a and drives them accordingly.
  • These flywheels are constantly driven when the film processing machine is in operation.
  • This drive is passed on to the gears 29 and 30 via the above-mentioned clutches 27, 27a and 28, 28a or interrupted by the clutches.
  • the joint drive of the coupling pairs 27, 27a and 28 and 28a ensures their synchronous drive.
  • the clutch unit is equipped with an electronic control 28c which gives such strong current impulses to the electromagnetic clutches that they are actuated strongly and quickly.
  • the brakes on the opposite side 12 of the machine frame are designed in a comparable manner.
  • the respective brakes have coaxial gear wheels 41, 41a and 42, 42a in the outward direction.
  • the first pair is wrapped by the toothed belt 43 and the second pair by the toothed belt 44.
  • the aforementioned toothed belts promote the synchronous running of the brake pairs.
  • the brakes In the inward direction, the brakes have coaxially assigned gears, which are also present as pairs 45, 45a and 46, 46a.
  • a toothed belt 47 extends from the gear 45a and drives the first feed roller 19 via the gear 48.
  • the gear 50 of the second feed roller 20 is driven by the gear 46 via the toothed belt 49.
  • Tensioning rollers 51 and 52 are also present.
  • toothed belt 47 can also loop around the gear 45.
  • toothed belt 49 can additionally wrap around the toothed wheel 46a.
  • gears of the brake pairs it is possible for the gears of the brake pairs to be connected to one another.
  • a toothed belt 53 is present in dashed lines, which wraps around the gear wheels 45 of one pair and 46 of the other pair and thus represents a further contribution to the synchronous drive, so that the feed rollers 19, 20 are braked synchronously.
  • this additional toothed belt is not necessary because the pulleys driven by the preferred rollers 19 and 20 with the associated toothed belts 47 and 49 the brake pairs are driven synchronously anyway.
  • first feed roller 19 is assigned a clutch pair 28, 28a and a brake pair 39, 39a
  • second feed roller 20 is assigned a clutch pair 29, 29a and a brake pair 40, 40a.
  • a clutch pair and a brake pair can be replaced by a single clutch and a single brake, so that the first feed roller 19 is provided with a clutch and a brake, while the second Preferred roller 20 is provided with an associated clutch and an associated brake.
  • These two clutches on one side are then arranged on the support plate 26 and, starting from the electric motor 37, have a common drive via a single toothed belt, so that their synchronous drive is ensured.
  • the one electronic control then also actuates both clutches at the same time.
  • a single brake can also be provided on the opposite side of the first feed roller 19 and also a single brake on the second feed roller 20, which is then attached to the common carrier plate and also actuated via the single electronic circuit 28c.
  • the individual clutches and brakes preferably have a diameter of 12.5 cm.

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  • Making Paper Articles (AREA)
EP88114332A 1987-09-18 1988-09-02 Machine pour fabriquer des sacs ou des emballages semblables à partir d'une feuille en plastique flexible et thermoplastique Withdrawn EP0307734A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8712648U 1987-09-18
DE8712648U DE8712648U1 (de) 1987-09-18 1987-09-18 Maschine zum Herstellen von Beuteln, Säcken od. dgl. Verpackungen aus einer flexiblen thermoplastischen Kunststoffolie

Publications (2)

Publication Number Publication Date
EP0307734A2 true EP0307734A2 (fr) 1989-03-22
EP0307734A3 EP0307734A3 (fr) 1989-05-24

Family

ID=6812223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114332A Withdrawn EP0307734A3 (fr) 1987-09-18 1988-09-02 Machine pour fabriquer des sacs ou des emballages semblables à partir d'une feuille en plastique flexible et thermoplastique

Country Status (2)

Country Link
EP (1) EP0307734A3 (fr)
DE (1) DE8712648U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000017248A (ko) * 1998-08-19 2000-03-25 유야마 쇼지 긴시이트 반송장치
CN108638522A (zh) * 2018-07-18 2018-10-12 侯晓冬 一种超声波熔断机及其工作方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333790A (en) * 1980-07-31 1982-06-08 Schaffron Helmut T Rotary bag sealing and perforating machine
DE3202337C2 (de) * 1982-01-26 1984-06-28 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Herstellen von Traggriffbeuteln mit erhöhter Produktionsgeschwindigkeit
EP0140081A3 (fr) * 1983-10-05 1986-10-01 Del Monte Frozen Foods, Inc. Procédé et dispositif pour faire avancer une nappe en continu
CH660464A5 (fr) * 1984-11-21 1987-04-30 Bobst Sa Machine de traitement d'une matiere en bande.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000017248A (ko) * 1998-08-19 2000-03-25 유야마 쇼지 긴시이트 반송장치
CN108638522A (zh) * 2018-07-18 2018-10-12 侯晓冬 一种超声波熔断机及其工作方法

Also Published As

Publication number Publication date
DE8712648U1 (de) 1988-01-28
EP0307734A3 (fr) 1989-05-24

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