EP3312112A1 - Dispositif d'alimentation automatique - Google Patents

Dispositif d'alimentation automatique Download PDF

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Publication number
EP3312112A1
EP3312112A1 EP17195979.4A EP17195979A EP3312112A1 EP 3312112 A1 EP3312112 A1 EP 3312112A1 EP 17195979 A EP17195979 A EP 17195979A EP 3312112 A1 EP3312112 A1 EP 3312112A1
Authority
EP
European Patent Office
Prior art keywords
free end
strip
gripping
automatic feeder
structured
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
EP17195979.4A
Other languages
German (de)
English (en)
Other versions
EP3312112B1 (fr
Inventor
Roberto Tunioli
Sergio Taddia
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.)
Ri Flex Abbrasives SRL
Original Assignee
Ri Flex Abbrasives SRL
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 Ri Flex Abbrasives SRL filed Critical Ri Flex Abbrasives SRL
Priority to PL17195979T priority Critical patent/PL3312112T3/pl
Priority to SI201730576T priority patent/SI3312112T1/sl
Publication of EP3312112A1 publication Critical patent/EP3312112A1/fr
Application granted granted Critical
Publication of EP3312112B1 publication Critical patent/EP3312112B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/008—Finishing manufactured abrasive sheets, e.g. cutting, deforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • 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
    • B65H2301/20—Continuous handling processes
    • 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
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4611—Processing webs in splicing process before splicing
    • B65H2301/46115—Processing webs in splicing process before splicing by bringing leading edge to splicing station, e.g. by chain or belt
    • 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

Definitions

  • the present invention relates to an automatic feeder for a strip of material.
  • the invention can be used in a machine for producing abrasive discs, but not exclusively.
  • Abrasive discs mean those tools, widely used in industry, that comprise a disc support, that can be associated with a rotary tool, to which a plurality of sheets of abrasive material are applied, typically sheets of abrasive paper.
  • Machines are currently available on the market for the automated production of abrasive discs. Such machines substantially cut out the sheets of abrasive paper and apply the sheets to the disc support, previously fed to the machine.
  • the sheets of abrasive paper are cut out by a continuous strip of abrasive paper that is loaded on board the machine in the form of a reel.
  • the end of the reel is manually associated with a cutting assembly which, once started, autonomously unwinds the strip gradually and cuts it into the desired sheets.
  • the object of the present invention is to offer an automatic feeder that enables the performance of machines for producing abrasive discs currently available to be improved.
  • An advantage of the automatic feeder according to the present invention is that it does not require the intervention of an operator to perform the replacement of an empty reel.
  • Another advantage of the feeder according to the present invention is that it allows the stopping times of machines for replacing empty reels to be substantially reduced.
  • the automatic feeder according to the present invention is particularly useful for feeding a strip of material to an operator device (D).
  • the strip of material is substantially in the form of a continuous and thin strip, which has a prevalent longitudinal extension with respect to the transversal extension or width.
  • the automatic feeder comprises an orientation assembly (10), structured to retain a free end (T) of a strip (R) on a predetermined gripping plane (11), in a waiting position.
  • the strip (R) for example, is wound in a roll and the orientation assembly (10) retains the free end (T) in a desired position, useful for a grip of the end (T) itself by a gripping device that will be described in more detail below.
  • the gripping plane (11) can be oriented horizontally or in another way. Preferably, the gripping plane (11) is horizontal.
  • the orientation assembly (10) comprises at least one presser element (12), structured to press and retain the free end (T) of the strip (L) on the gripping plane (11).
  • presser element (12) for example, is in the form of a pneumatic or hydraulic piston, activatable between an operating configuration, in which it presses and locks the free end (T) onto the gripping plane (11), and an active configuration, in which it does not interfere with the free end (T).
  • the stem of the presser element (12) is movable vertically between the operating position and the inactive position.
  • the orientation assembly (10) further comprises an abutment (13), structured to come into contact with a front edge of the free end (T) and to define the waiting position of the free end (T) on the gripping plane (11).
  • the abutment (13) constitutes a reference for the correct positioning of the free end (T) on the gripping plane (11).
  • the abutment (13) is movable between an operating position, in which it can come into contact with the front edge of the free end (T), and an inactive position, in which it does not interfere with the free end (T) and the strip (R) can slide longitudinally.
  • the abutment (13) comprises an edge (14) being rotatable about an axis of rotation (X1) between the operating position and the inactive position.
  • the edge (14) is solidly constrained to a support (15) being rotatable about the axis of rotation (X1).
  • the support (15), in the operating position, is substantially aligned and coplanar with the gripping plane (11).
  • the orientation assembly (10) comprises a detection means (16) provided to detect the correct location of the free end (T) in the gripping position on the gripping plane (11).
  • detection means may for example be in the form of photocells or proximity sensors.
  • the detection means (16) is positioned in proximity to the edge (14).
  • the gripping plane (11), the presser element (12), the abutment (13) and the detection means (16) are associated with a support arm (17), which can be associated with the machine frame.
  • the operation of the orientation assembly (10) can take place in the following ways. Initially the presser element (12) is in the inactive position and the abutment (13) is in the active position. The free end (T) can then be positioned on the gripping plane (11), bringing the end border into contact with the abutment (13), in particular in contact with the edge (14). Having reached that position, the presser element (12) is activated and is brought into the operating position, locking the free end (T) on the gripping plane. Subsequently, the abutment (13) is brought into the inactive position. The movements of the presser element (12) of the abutment (13) can be coordinated and driven by a control module, which receives the signal of the detection means (16) as an input.
  • control module moves the presser element (12) into the operating position only after receiving the signal of the detection means (16) that indicates the correct positioning of the free end (T).
  • the control module then drives the movement of the abutment (13) into the inactive position only after detecting the reaching of the operating position by the presser element (12).
  • the automatic feeder comprises a support shaft (30) for supporting one or more rolls of strip (R).
  • the number of rolls inserted side by side on the support shaft (30) substantially form the stock of strip (R) available for the automatic feeder.
  • the automatic feeder further comprises one or more orientation assemblies (10), each of which is structured to retain a free end (T) of one of the strips (R) on a predetermined gripping plane (11), in a waiting position.
  • the gripping planes (11) are coplanar to one another so that, in substance, there is a common gripping plane (11) for all the presser elements (12). In the waiting position, the free ends (T) of the various strips (R) are therefore arranged parallel to one another on the gripping plane (11).
  • the automatic feeder is further provided with a gripping device (20), structured to grasp the free end (T) of a strip (R) and to translate the end (T) from the waiting position to a feeding position, in which the end (T) can be grasped by another operating device (D).
  • the operating device (D) comprises a cutting assembly (D), structured to grasp the free end (T) of a strip (R), for drawing in advancement the strip (R) and for cutting out from the strip (R) a plurality of sheets, which can subsequently be applied to a support disc by an assembly device.
  • Both the cutting assembly (D) and the assembly device are known to a person skilled in the art and therefore will not be described in further detail.
  • the gripping device (20) comprises a gripper (21), structured to grasp the free end (T) of a strip (R).
  • the gripper comprises a fixed part (21 a) and a movable part (21 b) which can assume a gripping position, in which it is flanked to the fixed part and can lock the free end (T), and a release position, in which it is distanced from the fixed part and cannot lock the free end (T).
  • a rotary actuator (M1) can be associated with the movable part (21 b) to activate it in rotation between the gripping and release positions.
  • the gripper (21) is associated with a support arm (22). Such support arm rotates about an axis of rotation (X) between a first position, in which the gripper (21) can grasp the free end (T) in the gripping position, and a second position, in which the free end (T), retained by the gripper (21), is brought into the proximity of the operating device (D) and can be picked up by it.
  • An actuator device (M2) for example an electric or pneumatic motor, is provided to produce the rotation of the support arm (22).
  • the actuator device (M2) is associated with the support arm (16) of the orientation assembly (10).
  • the operation of the gripping device (20), and in particular of the gripper (21) and of the support arm (22), can be adjusted through the control module which acts on the orientation assembly (10).
  • the gripper (21) and the arm (22) can be placed in an initial position in which the gripper (21) is in a release configuration and the support arm (22) in the first position.
  • the control module detects the operating position of the presser element (12)
  • the gripper (21) can be brought into the gripping configuration.
  • the arm (22) is activated in rotation towards its second position, at which the free end (T) is grasped by the cutting assembly (D), or other operating device.
  • the control module drives the opening of the gripper (21).
  • the support shaft (30) and the orientation assemblies (10), or the orientation assembly (10) equipped with various presser elements (12), can translate so as to offer the free end (T) of a strip (R) to the gripping device.
  • the support shaft (30) and the orientation assembly (10) can translate so as to align any of the free ends (T), in the respective waiting positions, with the first position of the gripper (21).
  • one or more rolls of strip (R) can be inserted on the support shaft (30).
  • the free ends (T) of each roll are associated with the orientation assembly (10), i.e. each free end (T) is locked on the gripping plane (11) by means of a respective presser element (12).
  • the gripping element (20) moves to reach the free end (T) of a first roll of strip (R).
  • the gripper (21) comes into the first position, with the movable part (21 b) in the release position.
  • the movable part (21 b) is brought into the gripping position, squeezing the free end (T).
  • the presser element (12) moves from the operating position to the inactive position, releasing the free end (T).
  • the gripper (21) by means of the rotation of the support arm (22), draws the strip (R) in advancement and offers the free end (T) to the cutting assembly (D) which, in a known way, grasps the free end (T) and starts to gradually draw the strip (R) in advancement for subsequent processing.
  • the support shaft (30) and the orientation assembly (10) translate and offer the free end (T) of a new strip (R) to the gripping device (20), which can then perform a new gripping and feeding cycle of the free end (T) in the ways described above.
  • All the operations described above can obviously be coordinated by the control module already mentioned above.
  • the control module can be configured to detect an empty roll and, in that condition, initiate the start of the steps described above for the replacement of the empty roll with another one.
  • the automatic feeder according to the present invention achieves important advantages. It enables an empty roll of strip to be replaced in a totally automatic way, reducing the stopping times of the production cycle. If used in a machine for the production of abrasive discs, it allows the time required for changing an empty roll of strip to be drastically reduced, therefore allowing the machine's productivity to be improved, limiting the need for manual intervention by the operator and therefore the operating autonomy of the machine without the need for the constant supervision of an operator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Automatic Assembly (AREA)
  • Valve Device For Special Equipments (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Fluid-Driven Valves (AREA)
  • Replacement Of Web Rolls (AREA)
EP17195979.4A 2016-10-14 2017-10-11 Dispositif d'alimentation automatique Active EP3312112B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL17195979T PL3312112T3 (pl) 2016-10-14 2017-10-11 Podajnik automatyczny
SI201730576T SI3312112T1 (sl) 2016-10-14 2017-10-11 Avtomatski podajalnik

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000103467A IT201600103467A1 (it) 2016-10-14 2016-10-14 Alimentatore automatico

Publications (2)

Publication Number Publication Date
EP3312112A1 true EP3312112A1 (fr) 2018-04-25
EP3312112B1 EP3312112B1 (fr) 2020-12-02

Family

ID=58609682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17195979.4A Active EP3312112B1 (fr) 2016-10-14 2017-10-11 Dispositif d'alimentation automatique

Country Status (6)

Country Link
US (1) US20180105380A1 (fr)
EP (1) EP3312112B1 (fr)
CN (1) CN107954237A (fr)
IT (1) IT201600103467A1 (fr)
PL (1) PL3312112T3 (fr)
SI (1) SI3312112T1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110091540B (zh) * 2019-04-25 2021-04-23 许昌裕同印刷包装有限公司 一种高效自动点胶贴丝带系统
CN117923212B (zh) * 2024-03-21 2024-06-04 宁波九纵智能科技有限公司 一种具有全自动上下料功能的reel盘芯片自动检测机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819639A2 (fr) * 1996-07-17 1998-01-21 Fuji Photo Film Co., Ltd. Procédé et appareil pour la préparatiom du raccordement de bandes
US20090184192A1 (en) * 2006-04-21 2009-07-23 Toyo Tire & Rubber Co., Ltd. Method and apparatus of connecting strip-like material

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570592A (en) * 1925-03-10 1926-01-19 Ohio Match Company Sheet-feeding mechanism for forming machines
US1984804A (en) * 1933-10-27 1934-12-18 Int Cigar Mach Co Registering web feed for wrapping machines
US2751981A (en) * 1951-05-31 1956-06-26 Armour & Co Sheet forming and stacking apparatus
US2728950A (en) * 1954-05-06 1956-01-03 Dow Chemical Co Process for producing fibers from films of polymeric materials
US3250152A (en) * 1965-06-23 1966-05-10 Kirby S Engineers Ltd Method of and apparatus for creasing and/or cutting cardboard and analogous flexible sheet material
DE2417515C2 (de) * 1974-04-10 1984-10-04 Hauni-Werke Körber & Co KG, 2050 Hamburg Vorrichtung zum Zuführen einer Hüllmaterialbahn zu einem Förderer in einer Zigarettenverpackungsmaschine
JPS60137749A (ja) * 1983-12-27 1985-07-22 Bridgestone Corp 帯状部材の連査供給装置
CA1263125A (fr) * 1984-06-01 1989-11-21 Hans-Guenter E. Kuehnert Automatisme d'alimentation d'un poste de lamification
US4646986A (en) * 1984-11-22 1987-03-03 Hauni-Werke Korber & Co. Kg Apparatus for locating, engaging and transporting the leader of convoluted cigarette paper or the like
US4793229A (en) * 1986-12-24 1988-12-27 Western Printing Machinery Company Multifunctional web rotary module
DE10057597A1 (de) * 2000-11-21 2002-05-23 Kolbus Gmbh & Co Kg Vorrichtung zum Speichern und Abwickeln von Materialrollen in Buchbindereimaschinen
JP2010126313A (ja) * 2008-11-27 2010-06-10 Mitsubishi Heavy Ind Ltd 折機並びに印刷機及び印刷方法
EP2258643B1 (fr) * 2009-06-01 2015-01-14 Tetra Laval Holdings & Finance S.A. Procédé d'alimentation d'une station d'alimentation d'une unité de conditionnement avec une nouvelle bobine de matériau de conditionnement de feuilles, support de matériau de conditionnement de feuilles et chariot élévateur
ITFI20110253A1 (it) * 2011-11-23 2013-05-24 Perini Fabio Spa "svolgitore per bobine e metodo di svolgimento"
DE102013204956A1 (de) * 2013-03-20 2014-09-25 Gea Food Solutions Germany Gmbh Abrollvorrichtung für eine Interleaverrolle sowie System bestehen aus einerAufschneidevorrichtung und der Abrollvorrichtung
EP2797182B1 (fr) * 2013-04-24 2020-06-17 Komax Holding AG Dispositif de confection de câbles pour le raccourcissement, l'isolement et la confection d'un câble doté de contacts à sertir

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819639A2 (fr) * 1996-07-17 1998-01-21 Fuji Photo Film Co., Ltd. Procédé et appareil pour la préparatiom du raccordement de bandes
US20090184192A1 (en) * 2006-04-21 2009-07-23 Toyo Tire & Rubber Co., Ltd. Method and apparatus of connecting strip-like material

Also Published As

Publication number Publication date
CN107954237A (zh) 2018-04-24
US20180105380A1 (en) 2018-04-19
IT201600103467A1 (it) 2018-04-14
PL3312112T3 (pl) 2021-05-17
SI3312112T1 (sl) 2021-03-31
EP3312112B1 (fr) 2020-12-02

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