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EP0012239A1 - Appareil pour fabriquer des enveloppes à partir de feuilles coupées enroulées - Google Patents

Appareil pour fabriquer des enveloppes à partir de feuilles coupées enroulées Download PDF

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Publication number
EP0012239A1
EP0012239A1 EP79104556A EP79104556A EP0012239A1 EP 0012239 A1 EP0012239 A1 EP 0012239A1 EP 79104556 A EP79104556 A EP 79104556A EP 79104556 A EP79104556 A EP 79104556A EP 0012239 A1 EP0012239 A1 EP 0012239A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
gripper
blanks
grippers
movement
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
EP79104556A
Other languages
German (de)
English (en)
Other versions
EP0012239B1 (fr
Inventor
Werner Ing. Schmidt
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.)
Rissen Maschinenfabrik GmbH
Original Assignee
Rissen Maschinenfabrik GmbH
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 Rissen Maschinenfabrik GmbH filed Critical Rissen Maschinenfabrik GmbH
Priority to AT79104556T priority Critical patent/ATE742T1/de
Publication of EP0012239A1 publication Critical patent/EP0012239A1/fr
Application granted granted Critical
Publication of EP0012239B1 publication Critical patent/EP0012239B1/fr
Expired 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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C1/00—Making tubes or pipes by feeding at right angles to the winding mandrel centre line
    • B31C1/08—Accessories of machines therefor not otherwise provided for

Definitions

  • the invention relates to a device for winding sleeves from film blanks with a device for holding the blanks ready, at least one rotating on the drivable winding mandrel and a gripper between these two relatively movable for transferring the blanks to the winding mandrel.
  • the device is primarily intended for winding so-called ice cream cones; these are pointed conical, closed plastic bags at the pointed end.
  • foil material is to be understood as any sufficiently flexible flat material, in particular paper, plastic, metal, and laminates of such materials.
  • Known ice cream cone machines have a stationary mandrel, to which the blanks are fed from a stationary magazine by a movable gripper.
  • the performance of such machines is limited because the removal of the blanks from the magazine, the gluing, the H in movement of the gripper, and the transfer must play of the blank to the mandrel within a machine cycle.
  • gluing and cutting from the magazine are particularly susceptible to errors. Because an exact removal of the blanks from the magazine at high speed is hardly possible, readjustments of the blanks in the winding station by means of suitable stops are necessary.
  • the invention is based on the object of creating a device of the type mentioned at the outset, which provides a higher output with a comparatively low expenditure on machinery.
  • the solution according to the invention is that one Two alternately moving grippers are assigned to the winding mandrel, each of which preferably includes a holding device for the blanks.
  • the gripper which transfers the blanks to the mandrel, is expediently also provided for removing the blanks from the holding device, so that only a moving member is present between them and the mandrel. It can therefore be expected that the blank will be offered with the same accuracy with which it is removed from the magazine even without special adjustment devices on the mandrel.
  • the associated grippers are driven to and fro in a rigid movement connection, wherein they are expediently arranged on one and the same carrier.
  • the gripper is advantageously a suction plate which approaches both the magazine and the mandrel with the same side.
  • the removal and feeding conditions are very similar and, accordingly, the feeding accuracy of the blank is increased.
  • a gripper which grips a blank from one side will generally approach the holding device or the mandrel transversely to the cutting plane.
  • a conveying movement is also necessary, by means of which the blank is brought from the location of the holding device to the mandrel. These movements overlap one another as components of the entire relative movement of the gripper to the holding device or to the mandrel.
  • the component of the conveying movement is coupled for two grippers belonging together, so that the two grippers carry out this movement component in the opposite direction, while the components of the proximity movement are each controlled separately.
  • the proximity component provided relative to the mandrel is carried out by the mandrel itself, so that the gripper in the mandrel region only needs to carry out the conveying movement component. This reduces the control effort on the gripper side. While it would be comparatively complex to control the grippers separately in an approximate movement towards the mandrel, this approximate movement can be concentrated in a relatively simple manner with the mandrel, and the less complex the more mandrels are arranged on a jointly moving mandrel holder. According to the invention, the mandrel holder can namely simply in one essentially harmonic back and forth movement across the conveying direction of the gripper.
  • a flexible pressure bar for pressing the cutting edge against the mandrel is expediently provided on the gripper, by means of which a sufficient dwell time of the gripper is ensured and control inaccuracies are compensated for.
  • the mandrel rotation is carefully coordinated with the gripper feed movement, so that the suction openings provided on the mandrel for gripping the blank face the blank edge exactly when the mandrel is stopped when the blank is ready for transfer; after the stationary mandrel has gripped the blank, it is rotated again for winding.
  • the exact synchronization of the mandrel and gripper movement as well as the alternate stopping and driving of the mandrel are complex, especially given the high number of cycles that the invention allows.
  • a further idea of the invention therefore provides that the mandrel can be driven continuously and without taking synchronization into account on the grippers.
  • the rotational position of the mandrel is therefore independent of the respective gripper position.
  • At least one mechanical driver for the blank is expediently provided on the mandrel seen.
  • This driver can in particular be formed by one or more needles which are arranged on the mandrel circumference and at least superficially engage the blank in order to pull it along.
  • a needle instead of a needle, other mechanical aids, for example friction drivers made of a material with a high coefficient of friction or high surface roughness i, can also be provided.
  • Two mandrels 5 are seated on the mandrel carrier 3 offset by 180 ° in the horizontal plane.
  • Drive means are provided which constantly drive these mandrels in the winding direction, namely at a rotational speed which is a multiple of the number of cycles. There is no synchronization between the mandrel rotation and the machine drive.
  • Two horizontal, parallel guide rails 6 are fastened on both sides of the mandrel carrier 3 in the machine frame.
  • a carriage 7 can be displaced by means of a drive, not shown, with half the machine cycle.
  • the carriage drive is synchronized with the vertical drive of the mandrel carrier in such a way that the mandrel carrier reaches its lowest position each time the carriage is in the extreme right or left position.
  • Two pairs of hinge arms 8 are rigidly attached to each slide and define a hinge axis 9 parallel to the guide 6. They each hold a gripper plate 10 pivotable about this axis.
  • Each gripper plate 10 can assume a lowermost pivot position, which is defined by a rigid stop 11 on the slide 7, in which they are slightly inclined, as is indicated in FIG. 3.
  • each gripper plate in the area that is intended to come into contact with the mandrel has a resilient pressure bar 12 (FIGS. 10 to 13) which is held against the mandrel by springs 13 and can yield across the plane of the gripper plate.
  • Each gripper plate is roughly limited according to the shape of the cut, namely triangular with an arcuate side which is provided with a stop bar 14 which projects beyond the top of the gripper plate ; and forms a guide stop for the curved side of the blank during winding.
  • Each gripper plate is also provided with suction openings 15 which are connected via suitable lines to a controlled suction air source in such a way that the suction openings 15 from the removal of a blank from a magazine until shortly before delivery to a winding mandrel with a blank securing the blank on the gripper plate. Vacuum can be applied.
  • each mandrel also has openings (not yet shown) for connecting compressed air for throwing off the finished ice cream cone.
  • a needle 17 is provided which corresponds to a groove 18 on each pressure bar 12.
  • the na del 17 should intervene in the transfer of a blank 19 in order to accelerate it jerkily.
  • the needle is provided close to the maximum circumference of the mandrel for two reasons. First, cutting needs to be accelerated the most in this area. Second, the free edge of the wrapped ice cream cone is often cut off as a waste strip after winding, so that the incision of the needle 17 in this area is no longer present in the finished product.
  • the stop bar 14 cooperates with the needle in a special way in that the unilaterally strong acceleration of the blank in the sense of arrow 20 gives it (with its center of gravity 21) a torque which trims the blank in the sense of arrow 22 against the stop bar 14 moves, so that it interacts with the blank and gives it a defined position regardless of the possibly changing starting position of the blank on the gripper plate 10.
  • known means can be used, for example an applied weight, a spring clip or a limited suction force.
  • FIG. 3 illustrates the lowered position of the gripper plate 10 on the right, it appears raised in the left half of the same figure, namely by a guide bar 23, the height of which can be controlled arbitrarily, by means of devices which in the figure are simplified as a guide rod 24 and guide 25 are illustrated.
  • a pair of magazines 26 is provided on each side of the machine, specifically at the point at which the gripper plate 10, which does not interact with the mandrel 5, is located in each extreme position of the slide 7.
  • the magazines could also be replaced by other devices for delivering film cuts, for example punching devices, each of which holds a cut ready at the moment when an empty gripper plate appears there. The claims therefore speak more generally of a holding device for blanks.
  • the magazines shown comprise in a known manner an almost vertical guide shaft for a stack of blanks, which is partially open at the lower end for the removal of the lower blank.
  • the position and inclination of the lower opening surface of the magazine corresponds exactly to the position and inclination of the gripper plate 10 determined by the guide bar 23.
  • a blank is removed from the magazine in a known manner by connecting the suction openings of the gripper plate to a vacuum source.
  • the left gripper plate 10 is located at the associated magazine 26 and is raised against the lower surface thereof by the guide bar 23.
  • the guide bar 23 After a blank has been removed from the left magazine by the left gripper plate, the guide bar 23 begins a lowering movement, in which the left gripper plate 10 also takes part. At the same time, the mandrel 5 lifts off the right gripper plate.
  • the left gripper plate with the associated guide bar continues the downward movement while at the same time both gripper plates carry out the conveying movement to the right.
  • the right gripper plate enters the engagement area above the right guide bar assigned to it.
  • the gripper plates have reached the position under the mandrel or under the right magazine.
  • the mandrel descends on the left gripper plate while the right gripper plate is lifted against the associated magazine.

Landscapes

  • Making Paper Articles (AREA)
  • Advancing Webs (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
EP79104556A 1978-12-08 1979-11-19 Appareil pour fabriquer des enveloppes à partir de feuilles coupées enroulées Expired EP0012239B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104556T ATE742T1 (de) 1978-12-08 1979-11-19 Vorrichtung zum wickeln von maenteln aus folienzuschnitten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2853044A DE2853044C2 (de) 1978-12-08 1978-12-08 Vorrichtung zum Wickeln von Behältermänteln aus Folienzuschnitten
DE2853044 1978-12-08

Publications (2)

Publication Number Publication Date
EP0012239A1 true EP0012239A1 (fr) 1980-06-25
EP0012239B1 EP0012239B1 (fr) 1982-03-10

Family

ID=6056622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104556A Expired EP0012239B1 (fr) 1978-12-08 1979-11-19 Appareil pour fabriquer des enveloppes à partir de feuilles coupées enroulées

Country Status (3)

Country Link
EP (1) EP0012239B1 (fr)
AT (1) ATE742T1 (fr)
DE (1) DE2853044C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010634A1 (fr) * 1999-08-04 2001-02-15 Michael John Smith Formation, stockage et utilisation de cones d'emballage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953917A (en) * 1928-05-25 1934-04-10 Vortex Cup Co Rotary cup machine
DE719992C (de) * 1937-07-30 1942-04-27 Christian Majer Vorrichtung an Papierhuelsenwickelmaschinen zum Abheben, Beleimen und Zufuehren des jeweils obersten Zuschnittes eines Stapels mittels eines mit Saugluft arbeitenden Zylinders, Segments o. dgl.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1577978A (en) * 1925-10-06 1926-03-23 Mccall Peter Le Roy Method of and apparatus for making paper cones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953917A (en) * 1928-05-25 1934-04-10 Vortex Cup Co Rotary cup machine
DE719992C (de) * 1937-07-30 1942-04-27 Christian Majer Vorrichtung an Papierhuelsenwickelmaschinen zum Abheben, Beleimen und Zufuehren des jeweils obersten Zuschnittes eines Stapels mittels eines mit Saugluft arbeitenden Zylinders, Segments o. dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010634A1 (fr) * 1999-08-04 2001-02-15 Michael John Smith Formation, stockage et utilisation de cones d'emballage

Also Published As

Publication number Publication date
EP0012239B1 (fr) 1982-03-10
DE2853044A1 (de) 1980-06-12
DE2853044C2 (de) 1982-08-05
ATE742T1 (de) 1982-03-15

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