DE3230988C2 - - Google Patents

Info

Publication number
DE3230988C2
DE3230988C2 DE19823230988 DE3230988A DE3230988C2 DE 3230988 C2 DE3230988 C2 DE 3230988C2 DE 19823230988 DE19823230988 DE 19823230988 DE 3230988 A DE3230988 A DE 3230988A DE 3230988 C2 DE3230988 C2 DE 3230988C2
Authority
DE
Germany
Prior art keywords
drive motor
device
cutting
paper web
folding device
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 - Lifetime
Application number
DE19823230988
Other languages
German (de)
Other versions
DE3230988A1 (en
Inventor
Bernd 7217 Wellendingen De Kunzmann
Original Assignee
Bernd 7217 Wellendingen De Kunzmann
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 Bernd 7217 Wellendingen De Kunzmann filed Critical Bernd 7217 Wellendingen De Kunzmann
Priority to DE19823230988 priority Critical patent/DE3230988C2/de
Publication of DE3230988A1 publication Critical patent/DE3230988A1/en
Application granted granted Critical
Publication of DE3230988C2 publication Critical patent/DE3230988C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00Advancing webs
    • B65H20/24Advancing webs by looping or like devices

Description

The invention relates to a device for cutting and Folding a paper web running from a supply roll and with those listed in the preamble of the main claim characteristics.

A known device of this type is known from the DE-GM 68 02 168 can be seen. There is a continuous l operation with a continuous supply of one roll running paper web aimed, the rotation number of a material take-off roller automatically depending on is controlled by the size of a supply loop. Continuously operated devices have the big one Advantage that the risk of tearing the paper tap very much is small, but not everyone can Packaging machine can be assigned. With an inter middle operation of the known device would a required starting of the device Paper web despite the existing supply loop because of the strong tensile load on the paper web tear.

The invention has for its object a device of the generic type with additional devices to couple so that safe operation without the risk tearing of the paper web is guaranteed.  

The task is accomplished with a device with the features mentioned above ge according to the invention solves that between the supply roll and the supply loop fe a longitudinal folding device with from the drive motor driven take-off rollers is arranged that for a intermittent operation of the switch the drive motor turns on and off and that the drive speed of the drive motor from the rotational speed of one in Cutting part arranged transport roller is controlled, and this orbital speed depending on the operating speed of an assigned processing machine, esp special packaging machine.

In the device designed according to the invention Longitudinal folding device with its own drive, see above that drive parts of the cutting unit are not the whole Pull-off force for unwinding the paper web from the pre advice role and accordingly the train load on the paper web is reduced accordingly. By controlling the drive speed of the Drive motor depending on the operating speed of one associated processing machine can be the longitudinal operate folding device also over-synchronized, so that the formation of a supply loop from longitudinally folded Paper web in front of the feed part of the cutting part of the front direction in a safe intermittent operation the cutting device ensuring way is posed.  

By over-synchronizing the drive of the longitudinal fold device is achieved that this device always delivers a little more longitudinally folded paper web than in the Cutting and folding device is needed. The stocks So is loop when operating the longitudinal folding device getting bigger and bigger until she presses the break switch and thereby the longitudinal folding device stopped for so long until the cutting and folding device folded paper is pulled out of the loop.

Advantageously, in the embodiment of the invention Device the transport roller with a setpoint pulse be coupled with a comparator one with the shaft of the drive motor of the longitudinal fold direction coupled actual value pulse generator electrically ver is bound.

With a device designed according to the invention secure intermittent operation also with relatively large folding sheet and correspondingly wide paper ensure the web.

Below is an embodiment of an invention according to the trained device using the attached schematic drawing explained in more detail.

The drawing shows mounted on a base plate 10 , a cartoning machine 11 as a processing machine, on which a cutting and folding device 12 of known type is set. A longitudinal folding device 13 is also mounted on the base plate 10 , which is connected upstream of the cutting and folding device 12 . A paper web supply roll 14 is mounted in the lower part of the housing of the longitudinal folding device 13 .

The cutting and folding device 12 of known type is in a feed part 15 with a scanning head 16 for markings and driven feed rollers 17 , in a cutting part 18 with a continuously rotating transport roller 19 of a knife shaft and a counter knife 20, and in the folding unit 21 , which is in outlet belts 22 ends for the folded sheets, divided. Between the cutting and folding device 12 and the longitudinal folding device 13 , the longitudinally folded paper web 25 is in a pre-supply loop 26 between two parallel lateral guide plates 27 , one of which is shown in the drawing, and guided over three fixed guide rollers 28 . The supply loop 26 emerging downward between the two lateral guide plates 27 arrives there in the beam path 23 'of a light barrier which consists of a transmitter and receiver part acting as a switch 23 and a reflector 24 .

The cutting and folding device 12 with its feed rollers 17 and the driven rollers of the folding unit 21 is switched on as a function of a signal given by the assigned cartoning machine 11 and is automatically switched off again in the absence of a further signal after the delivery of a folded sheet.

The longitudinal folding device 13 has two take-off rollers 30 , which are preceded by a breaking device 29 known for longitudinal folding. One of the take-off rollers 30 is connected via an endless toothed belt 31 to an electric drive motor 32 whose speed can be regulated. On the axis 33 of the supply roll 14, a brake motor 34 acts as a function of the diameter of the supply roll 14 , so that the paper web 25 which has been pulled off is always tightened via sliding rollers 35 and forms a tight folding triangle 36 to the breaking device 29 .

The transport roller 19 of the cutting part 18 of the cutting and folding device 12 is continuously driven at the operating speed of the cartoning machine 11, not shown. With the continuously rotating transport roller 19 , a setpoint pulse generator 38 is coupled via a belt drive 37 , which is connected to an actual value pulse generator 39 coupled to the controllable drive motor 32 of the longitudinal folding device 13 via a comparison computer housed in a control cabinet 40 . The comparison computer causes the drive motor 32 is always operated at a speed which is somewhat greater than the respective, to the cartoning machine 11 adjustable operating speed of the cutting and folding device 12th As a result, the formation of the pre-loop 26 of the paper web 25 between the longitudinal folding device 13 and the feed part 15 of the cutting and folding device 12 is promoted. The increasing supply loop 26 occurs down between the baffles 27 in the beam path 23 'of the light barrier 23/24 , whereby a shutdown of the drive motor 32 of the longitudinal folding device is effected.

Claims (2)

1. Device ( 12 ) for cutting and folding a paper web ( 25 ) running from a supply roll ( 14 ), consisting of a cutting part ( 18 ) with a subordinate folding unit ( 21 ), the paper web ( 25 ) in the direction of flow in front of the cutting part ( 18 ) forms a supply loop ( 26 ) which actuates a switch ( 23/24 ) for a drive motor ( 32 ), characterized in that
  • - That between the supply roll ( 14 ) and the supply loop ( 26 ) a longitudinal folding device ( 13 ) with the drive motor ( 32 ) driven take-off rollers ( 30 ) is arranged,
  • - That for an intermittent operation of the switches ( 23/24 ) the drive motor ( 32 ) on and off,
  • - And that the drive speed of the drive motor ( 32 ) is controlled by the rotational speed of a transport roller ( 19 ) arranged in the cutting part ( 18 ), and this rotational speed is dependent on the operating speed of an assigned processing machine, in particular a packaging machine ( 11 ).
2. Device according to claim 1, characterized in that the transport roller ( 19 ) with a setpoint pulse encoder ( 38 ) is coupled, the computer via a comparison with a shaft of the drive motor ( 32 ) of the longitudinal folding device ( 13 ) coupled actual value - Pulse generator ( 39 ) is electrically connected.
DE19823230988 1982-08-20 1982-08-20 Expired - Lifetime DE3230988C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823230988 DE3230988C2 (en) 1982-08-20 1982-08-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823230988 DE3230988C2 (en) 1982-08-20 1982-08-20

Publications (2)

Publication Number Publication Date
DE3230988A1 DE3230988A1 (en) 1984-02-23
DE3230988C2 true DE3230988C2 (en) 1992-07-30

Family

ID=6171301

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823230988 Expired - Lifetime DE3230988C2 (en) 1982-08-20 1982-08-20

Country Status (1)

Country Link
DE (1) DE3230988C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29503391U1 (en) * 1994-12-03 1995-04-27 Ostma Maschinenbau Gmbh Assembly system for packaging objects, in particular vial objects
US9399531B2 (en) 2005-10-25 2016-07-26 Formax, Inc. Sheet interleaver for slicing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2295327A (en) * 1939-04-13 1942-09-08 Westinghouse Electric & Mfg Co Loop control system
DE931859C (en) * 1954-05-13 1955-08-18 Licentia Gmbh Arrangement to speed up control
DE6802168U (en) * 1968-10-14 1969-02-06 Griesser & Kunsmann Kg A machine for folding sheet material portions, in particular papierblaettern

Also Published As

Publication number Publication date
DE3230988A1 (en) 1984-02-23

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition