US20170298540A1 - Method for Operating a Bale Opener and Such a Bale Opener - Google Patents

Method for Operating a Bale Opener and Such a Bale Opener Download PDF

Info

Publication number
US20170298540A1
US20170298540A1 US15/486,370 US201715486370A US2017298540A1 US 20170298540 A1 US20170298540 A1 US 20170298540A1 US 201715486370 A US201715486370 A US 201715486370A US 2017298540 A1 US2017298540 A1 US 2017298540A1
Authority
US
United States
Prior art keywords
stripping
bale opener
stripping element
bale
laser scanner
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.)
Abandoned
Application number
US15/486,370
Other languages
English (en)
Inventor
Gerhard Gschliesser
Alexander Schmid
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Assigned to MASCHINENFABRIK RIETER AG reassignment MASCHINENFABRIK RIETER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMID, ALEXANDER, GSCHLIESSER, GERHARD
Publication of US20170298540A1 publication Critical patent/US20170298540A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/06—Details of apparatus or machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/06—Details of apparatus or machines
    • D01G7/14—Driving arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/04—Breaking or opening fibre bales by means of toothed members
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00—Breaking or opening fibre bales
    • D01G7/06—Details of apparatus or machines
    • D01G7/10—Arrangements for discharging fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids

Definitions

  • the invention relates to a method for operating a bale opener having a stripping element and a safety device for protecting people from intrusion into a hazardous zone of the stripping element and a bale opener, in accordance with the preamble of the independent claims.
  • bale trimmers In practice, devices are present on textile machines, on so-called bale trimmers, to secure hazardous working elements.
  • textile industry in particular in spinning preparation, there are known machines for stripping fiber bales standing on the floor.
  • the working elements used in this process for example, cutting rollers, are situated in positions that change constantly during operation due to the nature of the system and they cannot be covered, so they constitute a high risk for the person operating the machine, among other things.
  • the work areas of the machines are therefore secured over a large area through appropriate equipment, for example, a number of light barriers.
  • the problematical hazardous space is shielded by sensors and/or mechanical means.
  • sensory protective means which detect an area for monitoring at the side underneath and/or at the front underneath or directly beneath the stripping element of the bale opener, which changes its location.
  • sensors for example, infrared sensors, which are arranged more or less around the recipient, a type of protective curtain is implemented. This should be controlled in such a way that fiber bales are not detected but a person intruding into the area is detected. All the sensors are located on moving parts, in particular the tower and the recipient of the machine, i.e., there is a mechanical connection (coupling) between the sensors and the machine.
  • the sensors must be moved in order to create protective areas that can change in position.
  • the ultrasonic sensors that are used are expensive and in particular are very susceptible with respect to air influences such as air stratification, wind, etc.
  • the monitored area is small, i.e., not optimal, in particular with respect to its lateral coverage.
  • the invention is thus based on the object of creating a method for operating a bale opener and such a bale opener that avoids the disadvantages of the prior art.
  • the invention is also based on the object of creating a method for operating a bale opener and such a bale opener, which are less susceptible to interference, more reliable and less expensive than the methods and the systems offered in the prior art.
  • the invention is also based on the object of creating a method for operating a bale opener and such a bale opening, which can be used as collision monitoring in rotation of the stripping element.
  • the safety equipment comprises at least one two-dimensional laser scanner, on which at least one monitoring area that is adjustable and variable over time is monitored.
  • a computer program product which can be loaded directly into an internal memory of a bale opener and comprises software code segments, with which the process steps of the method according to the invention are carried out when the product is running on the bale opener.
  • Various monitoring regions that are independently adjustable and variable over time can be monitored redundantly on the two-dimensional laser scanner, for example, so that the two-dimensional laser scanner, for example, can monitor at least two monitoring regions, wherein one monitoring region extends to the floor and scans a region above the floor, this monitoring region becoming smaller with an increase in the depth of the stripping element.
  • the two-dimensional laser scanner monitors at least two monitoring regions redundantly in various safety fields, wherein the safety fields of the monitoring regions are switched among one another at certain times or at certain locations during operation.
  • This redundant design of the monitoring equipment with different safety fields and monitoring regions serves to improve the safety and robustness of the system and in particular this ensures that a failure or faulty behavior of the sensor can be detected easily.
  • the bale opener is stopped as soon as an unforeseen event (for example, the movement of a person's arm, etc.) is detected in at least one monitoring region or the function of at least one laser scanner cannot be secured.
  • the present invention additionally has numerous advantages because the two-dimensional laser scanner can be used in rotation of the stripping element at the end of a group of bales as collision monitoring and also the lateral distance of the stripping element and/or of the bale opener can definitely be reduced.
  • the shape of the at least one monitoring region of the laser scanner can be adjusted advantageously. Machine parts or other objects can advantageously be masked out or avoided in this way.
  • FIG. 1 shows a schematic diagram of a bale opener
  • FIG. 2 shows the configuration of a stripping tower with a laser scanner according to the invention
  • FIG. 3 a - c show a specific embodiment of the functioning of a laser scanner according to the invention.
  • FIG. 1 shows in a schematic diagram a bale opener 1 according to the invention.
  • the bale opener 1 consists essentially of a stripping tower 2 and a stripping element 3 .
  • the stripping element 3 is mounted on one side of the stripping tower 2 and is disposed so that it is freely cantilevered over the fiber bale 4 .
  • the stripping tower 2 is equipped with a running gear 5 .
  • the stripping tower 2 is moved along the fiber bale 4 on rails 6 with the help of the running gear 5 . Due to this movement, the stripping element 3 mounted on the stripping tower 2 is guided over the surface of the fiber bale 4 situated beneath it.
  • the mounting of the stripping element 3 on the stripping tower 2 is designed to be adjustable in height, so that the fiber bales 4 can be stripped continuously.
  • a stripping roller 7 having an axle 8 is arranged in the stripping element 3 .
  • the stripping roller 7 removes fiber flocks from the fiber bale 4 .
  • the fiber flocks are removed from the stripping roller 7 by means of a vacuum through the suction hood 9 and sent to the stripping tower 2 .
  • a transport channel 10 which receives the fiber flocks from the suction hood 9 and sends them to a pneumatic fiber flock transport system 11 is arranged in the stripping tower 2
  • the transport channel 10 and thus also the suction hood 9 are under a certain vacuum which serves to provide pneumatic conveyance for the fiber flocks to the transport channel 10 .
  • a two-dimensional laser scanner 12 is present on the stripping element on the front end.
  • the laser scanner 12 scans its surroundings by emitting a laser pulse. If the laser pulse strikes an object, it is reflected to the receiver of the laser scanner 12 .
  • FIG. 2 shows a top view of the stripping element have the functioning of a laser scanner 12 .
  • the laser scanner 12 monitors various monitoring regions 13 , which are independently adjustable and variable over time.
  • various monitoring regions 13 which are independently adjustable and variable over time.
  • three different safety fields are defined, forming three independent monitoring regions 13 1 , 13 2 , 13 3 .
  • Two of these safety fields are adjusted, so that they remain above the floor but extend deeper than the stripping roller. This redundant monitoring serves to provide safety for the system according to the invention.
  • Another safety field scans the floor continuously.
  • the bale opener 1 is stopped as soon as at least one safety field of the first two has detected an object (for example, a person near the machine, etc.) or as soon as the aforementioned safety field three would no longer detect the floor because the laser scanner 12 , for example, has failed. Since the stripping element 3 is now lowered in the course of stripping the fiber bale, the monitoring region 13 1 , 13 2 of the first two safety fields must be reduced in size with an increase in depth of the stripping element 3 . Only in this way can reliable monitoring of the stripping element 3 be ensured.
  • various field sets can now be defined, in which the defined monitoring regions 13 1 , 13 2 , 13 3 are inverted, for example, or altered in some other way.
  • the sensor 12 itself is also monitored as follows: one field set, in which the safety fields 1 and 2 must see the floor (i.e., an object, a person, etc.) and safety field 3 must not see the floor (i.e., no object) is used. If a condition does not correspond to the expected result, the machine is stopped and then is not ready to start. Next, the field set is switched back to normal operation (corresponding to the height of the stripping element) and there is also an analysis of whether this is correct.
  • the shape of the scanning field can be selected with the laser scanner 12 , so that the scanning field is defined as a rectangle, radially or freely by the user, for example. Machine parts or other objects such as machine casings, etc. can be masked out or bypassed advantageously in this way.
  • a much better area can advantageously be covered laterally. For example, a person with his arm resting on the bale can be detected promptly.
  • Another advantage is obtained due to the fact that the two-dimensional laser scanner 12 can be used as a collision monitor by rotating the stripping element 3 .
  • the lateral distance of the stripping element 3 and/or the bale opener 1 from adjacent objects, walls, etc. can be reduced significantly because the scanning field can be maintained vertically downward.
  • Advantages of the method according to the invention include the fact that it is less expensive, more reliable and less susceptible to trouble than the approaches known from the prior art.
  • the invention also relates to a computer program product, which can be loaded directly into an internal memory of a bale opener and includes software code segments with which the process steps of the method according to the invention are carried out when the product is running on the bale opener.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US15/486,370 2016-04-15 2017-04-13 Method for Operating a Bale Opener and Such a Bale Opener Abandoned US20170298540A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00497/16A CH712366A1 (de) 2016-04-15 2016-04-15 Verfahren zum Betrieb eines Ballenöffners und Ballenöffner.
CH00497/16 2016-04-15

Publications (1)

Publication Number Publication Date
US20170298540A1 true US20170298540A1 (en) 2017-10-19

Family

ID=58530379

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/486,370 Abandoned US20170298540A1 (en) 2016-04-15 2017-04-13 Method for Operating a Bale Opener and Such a Bale Opener

Country Status (4)

Country Link
US (1) US20170298540A1 (zh)
EP (1) EP3239367B1 (zh)
CN (1) CN107298216B (zh)
CH (1) CH712366A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019152493A (ja) * 2018-03-01 2019-09-12 オムロン株式会社 判定装置および判定装置の制御方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110053839A (zh) * 2019-04-24 2019-07-26 广州广林科技有限公司 一种智能化拆袋设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH685440A5 (de) * 1991-12-19 1995-07-14 Rieter Ag Maschf Sicherheitsvorrichtung an einem fahrbaren Maschinenteil einer Textilmaschine.
CH680514A5 (zh) * 1989-11-13 1992-09-15 Rieter Ag Maschf
EP0379465B1 (de) * 1989-01-16 1993-07-28 Maschinenfabrik Rieter Ag Ballenabtragmaschine mit einer Sicherheitseinrichtung
US5323513A (en) * 1989-01-16 1994-06-28 Maschinenfabrik Rieter Ag Safety apparatus for a traveling unit of a textile machine and method of operating the textile machine
EP0435816A1 (de) * 1989-12-21 1991-07-03 Maschinenfabrik Rieter Ag Ballenabtragmaschine mit sensorisch gesteuerter Schutzeinrichtung
DE4234606C2 (de) 1992-10-14 2002-08-14 Truetzschler Gmbh & Co Kg Vorrichtung zur Überwachung und Sicherung von begehbaren Gefahrenbereichen an einem Ballenöffner für Textilfaserballen
US7440620B1 (en) * 2004-05-21 2008-10-21 Rockwell Automation B.V. Infrared safety systems and methods
DE202004020863U1 (de) * 2004-09-17 2006-04-06 Sick Ag Vorrichtung zur Sicherung eines gefährdeten Arbeitsbereichs
US20110298579A1 (en) * 2010-06-08 2011-12-08 Cedes Safety & Automation Ag Dynamically adaptable safety zones
DE202013005503U1 (de) * 2013-03-01 2013-07-15 Ist E.K. Schutzvorrichtung für einen sich laufend verändernden Eingreifbereich an Maschinen und Anlagen (z. B. Rollenwickelmaschinen für die Textil-, Metall-, Kunststoffindustrie) um das Eindringen von unzulässigen Objekten wie zum Beispiel Finger, hand, Werkzeug etc. in den Eingreifbereich zu erfassen.
CN204568138U (zh) * 2015-04-28 2015-08-19 玉田县炬兴印刷包装机械制造有限公司 给纸头旋转避让机构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019152493A (ja) * 2018-03-01 2019-09-12 オムロン株式会社 判定装置および判定装置の制御方法

Also Published As

Publication number Publication date
EP3239367A1 (de) 2017-11-01
CN107298216B (zh) 2022-06-24
EP3239367B1 (de) 2021-09-08
CH712366A1 (de) 2017-10-31
CN107298216A (zh) 2017-10-27

Similar Documents

Publication Publication Date Title
US8214072B2 (en) Apparatus for monitoring and securing danger zones on power-driven textile machines
CN111771079B (zh) 对安全区域的边界地段进行监测的监测装置
US9679461B2 (en) Safety device
US6778092B2 (en) Method of, and apparatus for, controlling a safety-specific function of a machine
US8474918B2 (en) Method and device for monitoring a cutting extraction machine
US10695908B2 (en) Access protection system
JP2004005542A (ja) 物体認識方法及び光グリッド
US20170298540A1 (en) Method for Operating a Bale Opener and Such a Bale Opener
US10495256B2 (en) Access control system
CN106470797A (zh) 用于运行板加工装置的方法、以及板加工装置
JP6985242B2 (ja) ロボットの監視システムおよびロボットシステム
JP2003181541A (ja) 安全を確保する方法及び光電子センサ
US5136155A (en) Bale removal machine with sensory control protective mechanism
US5323513A (en) Safety apparatus for a traveling unit of a textile machine and method of operating the textile machine
EP2685150B1 (en) Monitoring system and method
JPH02277824A (ja) 安全装置付きベールオープナー
JPH03269117A (ja) センサ付き保護システムを有するベールオープナ
EP2134577A1 (en) Safety system for a car wash
CN112055762B (zh) 具有碰撞防护系统的、用于开松压紧的纤维包的开包机
US20160231729A1 (en) Photoelectric barrier with improved safety, in particular for cutting machines
CN101659019B (zh) 机床保护装置
WO2022254303A1 (en) A system to detect at least one part of the human, or animal body

Legal Events

Date Code Title Description
AS Assignment

Owner name: MASCHINENFABRIK RIETER AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GSCHLIESSER, GERHARD;SCHMID, ALEXANDER;SIGNING DATES FROM 20170620 TO 20170623;REEL/FRAME:043761/0528

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION