WO2015055571A1 - Installation d'emballage comprenant un dispositif de retardement et procédé - Google Patents

Installation d'emballage comprenant un dispositif de retardement et procédé Download PDF

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Publication number
WO2015055571A1
WO2015055571A1 PCT/EP2014/071868 EP2014071868W WO2015055571A1 WO 2015055571 A1 WO2015055571 A1 WO 2015055571A1 EP 2014071868 W EP2014071868 W EP 2014071868W WO 2015055571 A1 WO2015055571 A1 WO 2015055571A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
cargo
packaging
delay
engagement
Prior art date
Application number
PCT/EP2014/071868
Other languages
German (de)
English (en)
Inventor
Willi Fenninger
Original Assignee
Lemo Maschinenbau 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 Lemo Maschinenbau Gmbh filed Critical Lemo Maschinenbau Gmbh
Publication of WO2015055571A1 publication Critical patent/WO2015055571A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/34—Varying the phase of feed relative to the receiving machine
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/92—Delivering
    • B31B50/98—Delivering in stacks or bundles
    • 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
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/449—Features of movement or transforming movement of handled material
    • B65H2301/4492—Features of movement or transforming movement of handled material braking
    • B65H2301/44921—Features of movement or transforming movement of handled material braking by friction contact with non driven element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/42—Arrangement of pairs of drums
    • B65H2404/422—Nip arrangement, i.e. parallel drums in pressure contact to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/62—Transversely-extending bars or tubes
    • B65H2404/623—Transversely-extending bars or tubes gate arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/65—Other elements in face contact with handled material rotating around an axis parallel to face of material and perpendicular to transport direction, e.g. star wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a packaging system with a delay device and a method according to the features of the respective preamble of the independent claims.
  • DE 1 942 410 A and DE 1 966 160 A disclose a machine for the manufacture of bags from a thermoplastic film web.
  • the fine tuning potentiometer is centered while the coarse section potentiometer adjusts the motor so that the bags leaving the corrugated rollers are detected by the deceleration mechanism near their trailing edge.
  • the fine adjustment of the belt conveyor is then made on the fine tuning potentiometer, with the contact point of the bags with the braking mechanism being closely watched by an operator of the machine and the engine speed changed until the bags are momentarily caught at their trailing end before they be released to the stacking table.
  • US 3,720,141 B and US 4,261,771 B disclose a corresponding manually adjustable braking mechanism.
  • the invention is therefore based on the object to provide a packaging system with a delay device, in which the intervention time is automatically adjusted.
  • At least one sensor is provided for the detection of transported goods.
  • the invention is particularly suitable for packaging systems with filing systems in which a storage system is provided for individual bags, in particular a tape withdrawal further transported the individual bags at high speed.
  • a storage system is provided for individual bags, in particular a tape withdrawal further transported the individual bags at high speed.
  • an integrated delay and / or engagement unit is provided, in particular a brake bar at the end of the storage system for individual bags or the tape withdrawal, which slows down the individual bags before transfer to the bag system.
  • the delay device comprises, for example, the following components: a sensor for detecting the transported goods (for example a foil bag), a computer unit and at least one engagement unit, for example in the form of a roller.
  • This computer unit can be designed to be programmable.
  • the storage system for individual bags in particular the tape withdrawal before the engagement unit (for example designed as a brake bar) assigned to a sensor that detects the cargo, such as a bag.
  • the engagement point is set automatically. This eliminates long adjustment times for the engagement time of the engagement unit when changing Parameters. Almost no waste or even no waste or output is produced.
  • the intervention time (braking point) of the deceleration and / or engagement unit, in particular the brake bar automatically adjusted.
  • the transported material is transported, for example in the form of a bag between the upper and lower conveyor belts from the welding device to the bag tray (for example from right to left).
  • the transport speed is so high that the stop of the bag at a mechanically fixed position on the bag storage station upsets or throws back the bag (usually depending on the material of the bag), resulting in an unclean storage of the bag stack (the collected packet of individual bags). leads.
  • the bag is detected and decelerated by the deceleration device with its engagement unit, designed in particular as a brake strip, with rotating and counterclockwise rotating rollers with a rubber lip at a defined location, due to a lower rotational speed of the rollers compared to the conveyor belts.
  • a sensor On the way between the conveyor belts to the brake roller, a sensor detects the first and at least one further, preferably only a second edge of the bag.
  • the defined distance between sensor and brake bar as well as the defined speed of the conveyor belts allows an exact calculation of the correct position of the brake bar to catch and decelerate the bag. Changes in bag formats or transport speeds are thus automatically detected and compensated. This saves time and reduces or prevents rejects during set-up work to a new product or bag format.
  • bags and sacks made of foils or other materials, foil sections, envelopes, cardboard or plate-shaped material can be provided as transport goods. It is conceivable an engagement unit consisting of a rotating and a rigid element, wherein the cargo is briefly pressed to influence the movement of the rigid element.
  • foam rubber sections, rubberized contact surfaces and the like may be provided as contact elements for the cargo.
  • the senor for detecting the transported goods is arranged such that it detects the cargo in the interstices of the upper conveyor belts.
  • the at least one sensor is arranged above the transported goods.
  • An arrangement of the sensor below the transported goods is also conceivable.
  • the arrangement of one sensor above and below the transported goods is conceivable.
  • the sensor can be based on various physical or technical principles, for example, it can be designed as an optical sensor. Thus, it is conceivable to use a light barrier for detecting the transported goods.
  • the packaging installation is equipped with a deceleration device comprising an engagement unit, comprising at least one roller and a drive for the at least one roller, wherein a sensor is provided for detecting the transport material.
  • a deceleration device comprising an engagement unit, comprising at least one roller and a drive for the at least one roller, wherein a sensor is provided for detecting the transport material.
  • a sensor is provided for detecting the transport material.
  • belts, friction wheels and the like or even linear systems such as cylinders or linear motors can also be used.
  • the packaging installation is designed with a deceleration device, comprising an intervention unit, wherein at least one sensor is provided for the detection of transport goods.
  • the at least one sensor is an automation of the intervention process on the Transport goods possible. This intervention can be done by delaying and / or accelerating the cargo.
  • the engagement unit consists of at least one roller and a drive for the at least one roller. Rollers form a possible design for the engagement unit.
  • the engagement unit is constructed from belts, friction wheels, linear systems such as cylinders or linear motors, a combination of these or the like.
  • the rollers other devices can be used to construct the engagement unit.
  • the at least one sensor has an adjusting device. By adjusting the correct position for the sensor is set in relation to the cargo.
  • the adjusting device and the at least one sensor are arranged on a support.
  • this arrangement is not mandatory.
  • the carrier is arranged above the transported goods.
  • the carrier is advantageously in the field of view of the operator.
  • An arrangement of the sensor in any other position that allows the detection of the cargo is also conceivable.
  • the detection of the transported goods by the sensor allows a precise detection of position and speed of the transported goods, which is the basis for a precise calculation of the intervention time and the duration of engagement. Based on this calculation, the intervention unit is controlled for the transported goods. As a result, a delay of the transport speed of the cargo to the setpoint specification is possible. The delay of the transport speed of the cargo to a target value is thus automated in an advantageous manner.
  • the intervention in the movement of the transported good is calculated by the engagement unit.
  • the sensor supplies the values necessary for the calculation.
  • the engagement in the transported goods is calculated by the intervention unit.
  • parameters from the packaging plant By including parameters from the packaging plant in the calculation, a precise intervention time and a precise intervention time can be matched to other components of the packaging system.
  • the intervention consists of the intensity and the duration of the movement influence on the transported goods.
  • the intensity is above all, but not only or only dependent on the material of the cargo and the delay to be achieved.
  • the duration of the movement influencing also serves the vote on subsequent components in the packaging system.
  • the maximum delay for the cargo leads to a zero speed.
  • the Delay means stacking of the cargo to be done, the cargo must be brought by the delay device to a standstill (ie zero speed).
  • the delay for the cargo to be matched to the subsequent device From the following device parameters for consideration in the calculation for influencing the movement of the transported material can be obtained. Alternatively, the operator may make a required setpoint adjustment matched to the subsequent device.
  • a closed-loop control circuit for the delay device is produced by a setpoint actual value adjustment.
  • a closed loop the delay of the cargo is automated.
  • the operator must advantageously only make a setpoint specification when starting the packaging installation.
  • This setpoint specification can include several parameters for influencing the movement of the transported goods.
  • a bundle of parameters can be contained in a code for the respective transported goods. By entering the code, the delay device is then driven according to the respective transported good.
  • FIG. 1 shows a strip withdrawal of a packaging system with a delay device according to the invention
  • FIG. 2 shows a side view with the relevant components of a delay device according to the invention and 3 shows a side view of a strip trigger with a delay device according to the invention.
  • top, bottom, left, right, front, back, etc. refer exclusively to the exemplary representation and position of the device and other elements selected in the respective figures. These terms are not intended to be limiting, that is to say that different positions and / or mirror-symmetrical design or the like may change these references.
  • FIGS. 1 to 3 show a strip withdrawal 20 of a packaging installation with a delay device 1 according to the invention.
  • the delay device 1 according to the invention comprises an engagement unit 2, at least one sensor, here exactly one sensor 8, for detecting the transported good, such as foil bag, a programmable computer unit, not shown, and a drive unit, not shown, for the engagement unit 2.
  • This engagement unit 2 consists in the present embodiment two rollers 3, 4, each having a rubber lip 5 and form a brake bar.
  • the engagement unit 2 is used to influence the movement of the transport goods, not shown.
  • these gears 6, 7 on. By the engagement of the gears 6, 7 in each other, the rollers 3, 4 are driven synchronously in opposite directions.
  • the rollers 3, 4 pivot to release the transported goods out of the transport path.
  • the rollers 3, 4 pivot towards each other and thereby into the transport path of the cargo.
  • the cargo is preferably at the rear end, as seen in the transport direction T, detected by the rubber lips 5.
  • the intervention in the transport path of the goods to be transported by the engagement unit 2 is carried out quickly to brake the cargo from the transport speed down to the speed required in the subsequent device.
  • This sensor 8 has an adjusting device 9.
  • the adjusting device 9 is fixed together with the sensor 8 to a support 10.
  • the sensor 8 detects the length of the transported goods. It detects the entry of the cargo in the area of the sensor 8 and the leaving the area of the sensor 8 by the cargo, not shown. From these actual values and the target specifications by the operator, the calculation of the movement influence of the transported material by the intervention unit 2. Furthermore, parameters from the packaging installation or from the strip draw 20 can be included in the calculation.
  • the belt withdrawal 20 has upper conveyor belts 21 and lower conveyor belts 22. Between the conveyor belts 21, 22 the transport goods, not shown, is conveyed.
  • the conveyor belts 21, 22 are guided on rollers 23.
  • an adjustable tensioning device 24 is provided for the upper conveyor belts 21, an adjustable tensioning device 24 is provided.
  • This tensioning device 24 has per transport belt 21 a force storage 25, for example in the form of a spiral spring.
  • the operating voltage for the lower conveyor belts 22 is generated by a tensioning device 26.
  • This tensioning device 26 has a force accumulator 27, for example in the form of a gas pressure spring.
  • the conveyor belts 21, 22 are driven in opposite directions to transport the cargo in the transport direction T.
  • the strip withdrawal 20 is preceded by a welding device in the packaging system, for example, and a bag storage downstream.
  • the rollers 3, 4 of the engagement unit 2 rotate counterclockwise.
  • the cargo in the form of a bag is transported between the upper conveyor belts 21 and lower conveyor belts 22, for example, from the welder to the bag tray in the direction of the arrow T (from right to left).
  • the transport speed is so high that the stop of the bag at a mechanically fixed position on the bag storage station upsets the bag or back throws (depending on the material of the bag), which leads to an unclean storage of the bag pile (the collected package of individual bags).
  • the bag is caught and decelerated by the engagement unit 2 (clockwise and counterclockwise rotating rollers 3, 4 with a rubber lip 5, in the leftmost position in FIG. 1) at a defined location (due to a lower rotational speed of the rollers 3, 4 compared to the conveyor belts 21, 22).
  • the sensor 8 detects the first and at least one further, preferably a second edge of the transported goods, for example in the form of a bag.
  • the defined distance between sensor 8 and engagement unit 2 and the defined speed of the conveyor belts 21, 22 allows an exact calculation of the correct position of the engagement unit 2 to catch (absorb) and decelerate the bag. Changes in the formats of the transported goods, in particular the bag formats, or the transport speeds are thus automatically detected and compensated. As a result, time and scrap material is saved in the setup work to a new product or bag format in an advantageous manner.
  • the intervention in the cargo can also be referred to as an effect on the cargo.
  • the delay device according to the invention is not limited to the embodiment described here.
  • delay means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)

Abstract

L'invention concerne une installation d'emballage comprenant un dispositif de retardement (1) et une unité d'intervention (2). L'installation comprend au moins un capteur (8) destiné à détecter des marchandises à transporter. En outre, l'invention concerne un procédé de fonctionnement du dispositif de retardement (1).
PCT/EP2014/071868 2013-10-14 2014-10-13 Installation d'emballage comprenant un dispositif de retardement et procédé WO2015055571A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013220723.9 2013-10-14
DE102013220723 2013-10-14

Publications (1)

Publication Number Publication Date
WO2015055571A1 true WO2015055571A1 (fr) 2015-04-23

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ID=51691051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/071868 WO2015055571A1 (fr) 2013-10-14 2014-10-13 Installation d'emballage comprenant un dispositif de retardement et procédé

Country Status (2)

Country Link
DE (1) DE102014014886A1 (fr)
WO (1) WO2015055571A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539366A1 (de) * 1974-09-16 1976-03-25 Sheldahl Inc Vorrichtung zur behandlung von erzeugnissen aus thermoplastfilm
DE2719358A1 (de) * 1977-04-30 1978-11-02 Schoen & Cie Gmbh Maschine zur verarbeitung von boegen
DE2841658B1 (de) * 1978-09-25 1980-01-17 Vits Maschb Gmbh Vorrichtung zum Schuppen und Ablegen von Bogen auf einen Stapel
US4272069A (en) * 1979-01-08 1981-06-09 Maxson Automatic Machinery Company Method of and apparatus for slowing sheets carried by high-speed conveyors before deposit on stationary platforms or low-speed conveyors
EP0150655A1 (fr) * 1983-12-02 1985-08-07 Beloit Corporation Dispositif pour freiner des feuilles
US20110285080A1 (en) * 2010-04-13 2011-11-24 Gendreau Craig H Sheet deceleration apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663338A (en) 1968-09-16 1972-05-16 Fmc Corp Bag machine
US3720141A (en) 1970-04-08 1973-03-13 Fmc Corp Apparatus for making thermoplastic handle bags
US4261771A (en) 1979-10-31 1981-04-14 Bell Telephone Laboratories, Incorporated Method of fabricating periodic monolayer semiconductor structures by molecular beam epitaxy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539366A1 (de) * 1974-09-16 1976-03-25 Sheldahl Inc Vorrichtung zur behandlung von erzeugnissen aus thermoplastfilm
DE2719358A1 (de) * 1977-04-30 1978-11-02 Schoen & Cie Gmbh Maschine zur verarbeitung von boegen
DE2841658B1 (de) * 1978-09-25 1980-01-17 Vits Maschb Gmbh Vorrichtung zum Schuppen und Ablegen von Bogen auf einen Stapel
US4272069A (en) * 1979-01-08 1981-06-09 Maxson Automatic Machinery Company Method of and apparatus for slowing sheets carried by high-speed conveyors before deposit on stationary platforms or low-speed conveyors
EP0150655A1 (fr) * 1983-12-02 1985-08-07 Beloit Corporation Dispositif pour freiner des feuilles
US20110285080A1 (en) * 2010-04-13 2011-11-24 Gendreau Craig H Sheet deceleration apparatus and method

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