EP0398602A1 - Système à trancher - Google Patents

Système à trancher Download PDF

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Publication number
EP0398602A1
EP0398602A1 EP90305138A EP90305138A EP0398602A1 EP 0398602 A1 EP0398602 A1 EP 0398602A1 EP 90305138 A EP90305138 A EP 90305138A EP 90305138 A EP90305138 A EP 90305138A EP 0398602 A1 EP0398602 A1 EP 0398602A1
Authority
EP
European Patent Office
Prior art keywords
product
log
slicing
detector
monitor
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
EP90305138A
Other languages
German (de)
English (en)
Other versions
EP0398602B1 (fr
Inventor
Richard Seager
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.)
Thurne Engineering Co Ltd
Original Assignee
Thurne Engineering Co Ltd
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 Thurne Engineering Co Ltd filed Critical Thurne Engineering Co Ltd
Publication of EP0398602A1 publication Critical patent/EP0398602A1/fr
Application granted granted Critical
Publication of EP0398602B1 publication Critical patent/EP0398602B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D7/325—Means for performing other operations combined with cutting for conveying or stacking cut product stacking the cut product individually separated by separator elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0683—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for elongated articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product

Definitions

  • Foodstuffs such as cold meats, bacon, meat products and cheese are often sold pre-sliced in packets. Such slices are cut from sides, legs, backs or folded middles of bacon, deboned hams, moulded blocks of meat products and prisms of cheese but all of these are subsequently referred to by the collective term of logs.
  • the logs of product may vary in length from a few centimetres for natural products such as bacon and ham to several metres for processed meat products such as sausage.
  • the first few and last few slices cut from such logs are not as presentable as those that are derived from the bulk of the logs and, accordingly, the initial and final slices that are cut from each log are not normally included in packs distributed to the public.
  • the slices from the ends of the log are not of the required weight and thus packs containing them are also off-weight.
  • the slices are of the required weight they are usually misshapen and less stable than the regular slices and tend to become displaced as they pass along the packaging line. Further, small scraps are sometimes produced from the ends which can become entangled with transfer rollers of a packaging line and disturb the arrangement of subsequent packs.
  • Slicing machines fall into two main types.
  • a gripper grips the trailing end of each log independently to drive it forwards to control its slice thickness.
  • the gripper reverses its direction and pulls the butt end of the log backwards away from the slicing blade.
  • the other main type of slicer includes a continuous product feeder. This continuous product feeder may be formed by a pair of opposed conveyor belts with the log being fed between their opposed faces towards the blade of the sling machine.
  • a particularly preferred slicing machine with a continuous feeding device is described in our earlier International Application WO89/06588 Slicing machines including continuous product feeders have many advantages over machines including a gripper.
  • the time taken to reload the gripper type of slicing machine is completely eliminated and this can as much as double the throughput of the slicing machine.
  • slice thickness control and hence pack weight control is greatly improved since the logs are gripped between the opposed conveyors which extend substantially up to the slicing blade which leads to the feed of the logs being positive and controlled.
  • the gripper type slicer the distances between the gripper and the blade varies throughout the feed and as a result of elastic and plastic deformation of the log the feed of the log is not precisely controlled, particularly during the initial stages of the slicing of each log.
  • GB-A-2139876 discloses a product slicing system comprising a slicing machine having a slicing blade and a continuous product feeder. Means are provided to monitor the driving current which drives the blade of the slicer and the output of these means is used to discriminate whether the blade is cutting full slices of product or only part slices as occurs at the ends of logs. Upon detection of a full slice after a series of part slices the feed of the continuous product feeder is interrupted to provide a gap between part and full slices on an output conveyor so that the part slices can be removed manually from the output conveyor.
  • a product slicing system comprises a slicing machine having a slicing blade and a continuous product feeder, a product in-feed unit for feeding whole logs of product to the continuous product feeder, a detector to detect the trailing end of each log fed by the continuous product feeder, the detector triggering the product in-feed unit to feed the next log of product upon detection of the trailing end of the log by the detector, a monitor to monitor the movement of the continuous product feeder, means to determine from the output of the detector and the monitor when a first location on the log, a predetermined distance in front of the trailing end of the log, is located at the slicing blade and when a second location, a predetermined distance behind the trailing end of the log, and hence a predetermined distance behind the leading end of a following log, is located at the slicing blade, and reject means arranged to reject slices cut from each log by the slicing blade after the first location and before the second location reaches it.
  • the product slicing system includes an interleaver which feeds sheets of paper or plastic in synchronism with the slicing machine so that each sheet is fed across a drop zone of the slices so that each succeeding slice drops onto a sheet fed from the interleaver and then carries the sheet downwards onto the top of a previous slice of the stack or shingle.
  • the means to determine from the output of the detector and the monitor preferably also control the operation of the interleaver so that no sheets of paper are interleaved between slices cut from each log by the slicing blade after the first location and before the second location reaches it.
  • the monitor to monitor the movement of the continuous product feeder may have the form of an encoder connected to the conveyors of the feeder to monitor its movement.
  • the monitor may merely monitor the drive pulses fed to the stepper motor and rely on no slip occurring between the drive pulses being fed to the stepper motor and the movement of the log by the continuous product feeder.
  • the product in-feed unit for feeding whole logs of product to the continuous product feeder may be any type of automatic loader or magazine containing a number of logs and arranged to feed them singly to the continuous product feeder.
  • the product in-feed unit comprises a pivoted inclined ramp with an abutment formed at its downstream end.
  • the logs of product are placed one behind the other on this inclined ramp and move forwards under gravity until the leading edge of the front log engages the abutment.
  • the inclined ramp Upon detection of the trailing end of a preceding log the inclined ramp is lifted to lift the leading end of the leading log on the ramp over the abutment and to align the inclined ramp with the continuous product feeder of the slicing machine.
  • the product then moves forward under gravity until its leading end abuts the preceding log in the continuous product feeder.
  • the means responsive to the output of the detector and the monitor determine when the trailing end of the preceding log has moved sufficiently far forwards for the following log to be captured by the continuous product feeder and, once this has been achieved, actuates the lifting means so that the inclined ramp is once again lowered to ensure that the leading end of the next following log engages the abutment and is prevented from being fed to the continuous product feeder.
  • the reject means may have the form of a separate reject conveyor forming part of the downstream packaging line with the sliced product being fed selectively forwards to the remainder of the packaging line or to the reject conveyor by a conveyor which moves sideways or pivots up and down to transfer its output from one to the other.
  • the initial conveyor usually known as a jump conveyor, which receives the slices of product as they are cut by the slicing blade of the slicing machine may be arranged to move in the reverse direction to discharge the rejected products and in the forwards direction to allow acceptable products to move forwards towards the packaging machine.
  • a slicing machine and jump conveyor combination is described in detail in our co-pending application filed on the same day as this application and claiming priority from British Patent Application 8911523.
  • the reject means may also be formed by a simple pusher which pushes slices cut from each log by the slicing blade before the first location and after the second location off a downstream conveyor.
  • the detector may typically be formed by a photo-emitter/photo-detector pair which are preferably co-sited and have a retroreflector located on the opposite side of the path of the logs but other forms of detectors such as proximity switches, mechanical arms operating microswitches or laser or ultrasonic detectors may be included.
  • the product slicing system includes a further detector located immediately adjacent the upstream side of the slicing blade to detect when no log is present immediately upstream of the slicing blade.
  • a further detector located immediately adjacent the upstream side of the slicing blade to detect when no log is present immediately upstream of the slicing blade.
  • the output from the other detector is also preferably coupled to the reject means to ensure that such slices are rejected even if the slicing blade has not yet reached the first location on the log.
  • the product slicing system comprises a slicing machine 1 having a blade 2 and a continuous product feeder formed by opposed conveyors 3 and 4, an in-feed unit 5, a downstream jump conveyor 6 and an output conveyor 7 leading to a downstream packaging line.
  • the product slicing system also includes a detector 8 to detect the trailing end of each log and an encoder 9 connected to the conveyor 4 of the continuous product feeder.
  • the in-feed unit comprises a roller conveyor 10 which is hinged at a pivot 11 and includes a pneumatic cylinder 12 to lift and lower its downstream end.
  • a fixed abutment 13 is located at the downstream end of the roller conveyor 10.
  • a further detector 14 detects the absence of a log of product from immediately in front of the slicing blade 2.
  • Logs of product 20, 21, 22 and 23 are placed on the inclined roller conveyor 10 and roll downwards under gravity until their leading ends engage the fixed abutment 13.
  • the pneumatic cylinder is then operated under manual override control, for example, for the first log 20, to lift the downstream end 12 of the roller conveyor 10 to lift the leading end of the first log 20 over the top of the abutment 13 and to align the roller conveyor 10 with the conveyor 3 in the continuous product feeder of the slicing machine 1.
  • a control unit 15 which typically includes a programmed computer or a programmed logic controller receives the output from the detector 8 and the encoder 9 and from this can determine the position of the trailing end of each log as it moves along the product feeder.
  • the pneumatic cylinder 12 When the trailing end of the log 20 passes the detector 8 the pneumatic cylinder 12 is again operated to lift the next log 21 over the abutment 13 so that it rolls down until it abuts the trailing end of log 20.
  • the control unit 15 determines that the trailing end of log 20 has moved far enough forwards for the leading end of the log 21 to be securely engaged between the conveyors 3 and 4
  • the pneumatic cylinder 12 is actuated to lower the downstream end of the roller conveyor 10 so that the leading end of the following log 22 engages the abutment 13. Meanwhile the logs 20 and 21 held between the conveyors 3 and 4 are fed forwards at the required feed speed to produce slices of the required thickness and weight.
  • the control unit knows when a first location a predetermined distance in front of the trailing end of the log 20 reaches the slicing blade 2. Once the first location reaches the slicing blade 2 a motor 16 which drives the conveyor 6 operates in the reverse direction, i.e. feeding slices from right to left as seen in the Figure to reject the slices. The system continues in this mode until a second location a predetermined distance behind the trailing end of log 20 and hence a predetermined distance behind the leading end of the log 21 reaches the slicing blade 2.
  • a manual override control to introduce the first log 20 also triggers the control unit 15 to reject the first few slices cut from the leading end of the very first log. Apart from this the slices cut from the log 20 are formed into stacks or shingles on the conveyor 6 which is intermittently moved at a high jump speed in the interval between cutting adjacent slices to form separate groups of slices.
  • the first log 20 is partly sliced, the second log 21 is securely held by the continuous product feeder and is being fed forwards simultaneously with the first log 20 whilst the third log 22 abuts the abutment 13 and the following fourth log 23 merely rests against the trailing end of the third log 22.
  • the detector 14 detects the absence of a log from immediately upstream of the slicing blade 2 it causes the control unit 15 to operate the drive 16 of the conveyor 6 in the reject direction even if by calculation from the output of the detector 8 and encoder 9 the control unit 15 decides that the region between the first and second locations is not adjacent the slicing blade 2.
EP90305138A 1989-05-19 1990-05-14 Système à trancher Expired - Lifetime EP0398602B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898911522A GB8911522D0 (en) 1989-05-19 1989-05-19 A product slicing system
GB8911522 1989-05-19

Publications (2)

Publication Number Publication Date
EP0398602A1 true EP0398602A1 (fr) 1990-11-22
EP0398602B1 EP0398602B1 (fr) 1993-03-24

Family

ID=10657017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90305138A Expired - Lifetime EP0398602B1 (fr) 1989-05-19 1990-05-14 Système à trancher

Country Status (5)

Country Link
EP (1) EP0398602B1 (fr)
JP (1) JPH033796A (fr)
CA (1) CA2016902A1 (fr)
DE (1) DE69001150D1 (fr)
GB (1) GB8911522D0 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615821A1 (fr) * 1993-03-16 1994-09-21 WABÄMA GmbH, SPEZIALFABRIK FÜR SCHNEIDEMASCHINEN DES NAHRUNGSMITTELGEWERBES Dispositif pour la coupe de produits alimentaires, en particulier de pain
EP0733449A2 (fr) * 1995-03-22 1996-09-25 Ryowa Co., Ltd. Dispositif pour débiter des produits alimentaires
WO2000059692A1 (fr) * 1999-03-31 2000-10-12 Biforce Anstalt Procede et dispositif pour decouper des produits alimentaires
DE19936213A1 (de) * 1999-08-04 2001-02-22 Schindler & Wagner Kg Schneidmaschine für laibförmige Produkte
EP0982107A3 (fr) * 1998-08-28 2002-12-18 Weber Maschinenbau GmbH & Co. KG Méthode ainsi que dispositif d'empilage de produits alimentaires débités en tranches
DE4235985B4 (de) * 1992-10-24 2005-10-27 Dixie-Union Verpackungen Gmbh Vorrichtung an Schneidmaschinen
NL1033699C2 (nl) * 2007-04-16 2008-10-20 Wk Koek Bakkerij B V Scheidingsrol, inrichting en werkwijze voor het afnemen van een laag aangevoerd gesneden product.
CN103659982A (zh) * 2013-04-25 2014-03-26 成都天磐科技有限责任公司 原木片自动生产系统
EP2566670B1 (fr) 2010-05-01 2016-07-06 Formax, Inc. Machine à trancher à grande vitesse

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4410191B2 (ja) * 2005-12-06 2010-02-03 株式会社前川製作所 パンスライサ及びパン切断方法
US20090188357A1 (en) 2007-10-22 2009-07-30 Lindee Scott A Information Carrier System for a Food Article Slicing Machine
JP5773519B2 (ja) * 2011-05-06 2015-09-02 株式会社日本キャリア工業 食肉スライサー及び食肉スライス方法
CN105252566A (zh) * 2015-10-31 2016-01-20 重庆市合川区宝华木炭厂 除尘碳棒切割装置
JP6399604B2 (ja) * 2015-11-16 2018-10-03 渡辺精機株式会社 ごぼうの乱切り機

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139876A (en) * 1983-05-17 1984-11-21 Amca Int Corp Method and apparatus for trimming slices from a product
EP0159183A2 (fr) * 1984-04-16 1985-10-23 Oscar Mayer Foods Corporation Ligne automatique pour produits en feuille

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8314766D0 (en) * 1983-05-27 1983-07-06 Thurne Eng Co Ltd Slicing machine
GB8800920D0 (en) * 1988-01-15 1988-02-17 Thurne Eng Co Ltd Feeding device for slicing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139876A (en) * 1983-05-17 1984-11-21 Amca Int Corp Method and apparatus for trimming slices from a product
EP0159183A2 (fr) * 1984-04-16 1985-10-23 Oscar Mayer Foods Corporation Ligne automatique pour produits en feuille

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235985B4 (de) * 1992-10-24 2005-10-27 Dixie-Union Verpackungen Gmbh Vorrichtung an Schneidmaschinen
EP0615821A1 (fr) * 1993-03-16 1994-09-21 WABÄMA GmbH, SPEZIALFABRIK FÜR SCHNEIDEMASCHINEN DES NAHRUNGSMITTELGEWERBES Dispositif pour la coupe de produits alimentaires, en particulier de pain
EP0733449A2 (fr) * 1995-03-22 1996-09-25 Ryowa Co., Ltd. Dispositif pour débiter des produits alimentaires
EP0733449A3 (fr) * 1995-03-22 1997-01-15 Ryowa & Co Ltd Dispositif pour débiter des produits alimentaires
EP0982107A3 (fr) * 1998-08-28 2002-12-18 Weber Maschinenbau GmbH & Co. KG Méthode ainsi que dispositif d'empilage de produits alimentaires débités en tranches
WO2000059692A1 (fr) * 1999-03-31 2000-10-12 Biforce Anstalt Procede et dispositif pour decouper des produits alimentaires
US6640681B1 (en) 1999-03-31 2003-11-04 Weber Maschinenbau Gmbh Co. Kg Method and device for slicing food products
DE19936213B4 (de) * 1999-08-04 2005-12-22 Dipl.-Ing. Schindler & Wagner Kg Betriebsverfahren für eine Schneidmaschine für laibförmige Produkte sowie Schneidmaschine zu seiner Durchführung
DE19936213A1 (de) * 1999-08-04 2001-02-22 Schindler & Wagner Kg Schneidmaschine für laibförmige Produkte
NL1033699C2 (nl) * 2007-04-16 2008-10-20 Wk Koek Bakkerij B V Scheidingsrol, inrichting en werkwijze voor het afnemen van een laag aangevoerd gesneden product.
EP2566670B1 (fr) 2010-05-01 2016-07-06 Formax, Inc. Machine à trancher à grande vitesse
US10625436B2 (en) 2010-05-01 2020-04-21 Provisur Technologies, Inc. High speed slicing machine
US10639812B2 (en) 2010-05-01 2020-05-05 Provisur Technologies, Inc. High speed slicing machine
US11383399B2 (en) 2010-05-01 2022-07-12 Provisur Technologies, Inc. High speed slicing machine
US11766801B2 (en) 2010-05-01 2023-09-26 Provisur Technologies, Inc High speed slicing machine
CN103659982A (zh) * 2013-04-25 2014-03-26 成都天磐科技有限责任公司 原木片自动生产系统

Also Published As

Publication number Publication date
EP0398602B1 (fr) 1993-03-24
DE69001150D1 (de) 1993-04-29
CA2016902A1 (fr) 1990-11-19
JPH033796A (ja) 1991-01-09
GB8911522D0 (en) 1989-07-05

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