EP0421412A1 - Dispositif automatique pour conduire des planchettes ou similaires à une bande transporteuse, notamment pour machines à assembler des caisses d'emballage - Google Patents

Dispositif automatique pour conduire des planchettes ou similaires à une bande transporteuse, notamment pour machines à assembler des caisses d'emballage Download PDF

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Publication number
EP0421412A1
EP0421412A1 EP90119016A EP90119016A EP0421412A1 EP 0421412 A1 EP0421412 A1 EP 0421412A1 EP 90119016 A EP90119016 A EP 90119016A EP 90119016 A EP90119016 A EP 90119016A EP 0421412 A1 EP0421412 A1 EP 0421412A1
Authority
EP
European Patent Office
Prior art keywords
strip
resting
feed direction
plane
strips
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.)
Withdrawn
Application number
EP90119016A
Other languages
German (de)
English (en)
Inventor
Bruno Corali
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0421412A1 publication Critical patent/EP0421412A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/34—Manufacture or reconditioning of specific semi-finished or finished articles of cases, trunks, or boxes, of wood or equivalent material which cannot satisfactorily be bent without softening ; Manufacture of cleats therefor
    • B27M3/36—Machines or devices for attaching blanks together, e.g. for making wire-bound boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B65H1/06—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile for separation from bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile

Definitions

  • the present invention relates to an automatic device for feeding strips or the like to a conveyor element, in particular for machines for assembling packing boxes, such as for example fruit trays or the like.
  • Said devices generally comprise a loader element which is arranged above the conveyor element to be fed and in which the strips are arranged so that they are stacked and orientated transversely to the advancement or feed direction of the conveyor element.
  • the stack of strips is laterally supported by a pair of guides which are usually vertical and is supported below by a pair of opposite supports which are arranged proximate to the lower end of the guides.
  • a first extractor element is arranged proximate to the lower end of one of these guides and acts on an end of the lower strip of the stack so as to move said strip laterally, i.e. transversely to the extension of the guides, by an extent which is greater than the dimensions of the corresponding support in order to disengage it therefrom.
  • the guide which is opposite to the first extractor element has, proximate to its lower end, a slot which corresponds to the thickness of a strip so as to allow the movement actuated by the first extractor element, which thus, as mentioned, releases an end of the strip from one of the supporting elements.
  • a second extractor element is arranged on the outer side of said slot and acts on the other end of the strip in the opposite direction and subsequently with respect to the first extractor element. Said second extractor element disengages the other end of the strip from the corresponding support, making the strip fall onto the conveyor element.
  • Said known types of device have some disadvantages. More particularly, since the strip, once it is disengaged from the pair of supports of the loader element, falls freely onto the conveyor element, poor precision in the placement of the strips on the conveyor element is observed. This lack of precision is such as to compromise the correct feeding of the strips to the subsequent assembly line when a high feed speed is required, since the free fall of the strips cannot obviously be made any faster.
  • feeder devices of the above described type it is furthermore extremely difficult to correctly feed low-­thickness strips due to the intrinsic structure of the supporting elements and of the extractor element.
  • the aim of the present invention is to obviate the disadvantages described above by providing an automatic device for feeding strips or the like to a conveyor element which ensures high reliability in the feeding of the strips even with high operating speeds, so as to allow the full exploitation of the productive potentiality of modern assembly lines for packing boxes.
  • an object of the invention is to provide a feeder device which can feed without interruption an assembly line even in the presence of strips which have defects related to their thickness and degree of finishing.
  • Another object of the invention is to provide a feeder device which can operate correctly even in the presence of deformed strips.
  • Not least object of the invention is to provide a device which does not have excessive requirements of precision in its setup.
  • an automatic device for feeding strips or the like to a conveyor element in particular for packing box assembling machines, characterized in that it comprises a loader element for a stack of strips, said loader element being arranged above a resting plane provided with traction elements which are controllably movable along a feed direction and a supporting element which defines a resting region for a first end of the lower strip of the stack in a direction which is transverse to said feed direction, an extractor element being provided proximate to said supporting element, being engageable with said lower strip and being controllably movable along a path which has a component which is transverse to said feed direction for the disengagement of said lower strip from said resting region, with passage from a first position, in which it rests with said first end on said supporting element above said resting plane and with its second end, which is opposite to said first end, on said resting plane in a position of non-interference with said traction elements, to a second position, in
  • the device according to the invention comprises a loader element 2 intended to support a stack of strips 3 to be deposited on a resting plane 4, 4a which has traction elements 5 which are controllably movable along a feed direction indicated by the arrow 6 in figure 2.
  • the loader element 2 is constituted by a pair of guides 7a and 7b which are substantially mutually parallel and extend in a plane which is perpendicular to the portion 4a of the underlying resting plane and is perpendicular to the feed direction 6.
  • the guide 7a is delimited downward by a supporting element 8 which defines a resting region for a first end 3a of the strip of the stack which is arranged below all the others.
  • the guide 7b is open downward and is spaced from the resting plane 4a with its wall which laterally contains the strips by a preset extent so as to define a gauged slot 9 the height whereof is slightly greater than the individual thickness of the strips 3.
  • a stop abutment 10 for the other end, or second end, 3b of the lower strip of the stack is provided laterally to the slot 9 on the opposite side with respect to the supporting element 8, as will become apparent hereinafter.
  • a counter-abutment 40 is arranged below the supporting element 8, which faces the stop abutment 10 and which is laterally adjacent to the resting plane 4a.
  • an extractor element 11 which can engage the lower strip 3 and is controllably movable along a path which has a component, in the plane defined by the guides 7a and 7b, which is transverse to the feed direction 6 in order to push the lower strip with its end 3b through the slot 9.
  • the supporting element 8 is constituted by a roller which is arranged proximate to the lower end of the guide 7a and is controllably rotatable about its axis 8a in a plane which is substantially parallel to the plane defined by the guides 7a and 7b.
  • the roller 8 defines, with its lateral surface, the resting region for the end 3a of the lower strip of the stack of strips, and along said lateral surface there is at least one tooth which protrudes radially and constitutes the extractor element 11 according to the invention.
  • the tooth 11 protrudes from the lateral surface of the roller 8 by an extent which is slightly smaller than the thickness of a strip, so that by means of the rotation of the roller 8 about its axis the tooth 11 cyclically engages only the lower strip of the stack.
  • the extractor element or tooth 11 moves along a substantially circular path which has not only a transverse component in the direction 6, i.e. a component which is longitudinal to the strip on which it acts, but also a component which is orientated toward the resting plane 4a.
  • the tooth 11 has, in an intermediate region of its extension in a direction which is parallel to its axis, a notch 41 for passing without interference beyond the counter-abutment 40 during the rotation of the roller 8.
  • the traction elements 5 are substantially constituted by a conveyor composed of two chains 12a and 12b which extend mutually parallel along the direction 6.
  • the chains 12a and 12b wrap around pairs of pinions 13, 14, 15 and 16 so as to laterally follow the resting plane 4, 4a and link up to themselves.
  • the chains 12a and 12b have links which are appropriately spaced from one another and have raised portions 17 which protrude upward from the resting plane 4, 4a.
  • the arrangement of the chains is such that the raised portions 17, above the resting plane 4, are arranged along two rows, of which: a first row is located between the guides 7a and 7b, below the strip resting region defined by the roller 8, and the second row is located between the slot 9 and the stop abutment 10.
  • the advancement of the chains along the feed direction 6 is obtained for example by means of an electric motor 18 which actuates one of the pairs of pinions, for example the pinions 16, which are mechanically connected to the roller 8, for example by means of a pair of gearwheels 19, 20 with a universal joint 21 interposed, so that the advancement speed of the chains 12a and 12b is in sync with the rotation of the roller 8 about its own axis.
  • an electric motor 18 which actuates one of the pairs of pinions, for example the pinions 16, which are mechanically connected to the roller 8, for example by means of a pair of gearwheels 19, 20 with a universal joint 21 interposed, so that the advancement speed of the chains 12a and 12b is in sync with the rotation of the roller 8 about its own axis.
  • the slot 9 is delimited upward by a shoulder 22 which is elastically yielding so as to enlarge, if necessary, the slot 9 in the direction which corresponds to the thickness of the strips, as will become apparent hereinafter.
  • the shoulder 22 is defined by an arm 23 which is articulated to a block 24, which is fixed to the guide 7b, by means of a pair of connecting rods 25a and 25b which are mutually parallel and allow the arm 23 to perform a translatory motion parallel to itself away from the resting plane 4a.
  • the translatory motion of the arm 23 away from the plane 4a is contrasted by a spring 26.
  • connecting rods 27a and 27b said connecting rods, instead of being mutually parallel, could also be arranged variously inclined with respect to one another so as to obtain not only a translatory motion away from the plane 4a but also an oscillation toward the stop abutment 10 to facilitate the passage of the end 3b of the strips.
  • the slot 9 is delimited downward by a T-shaped raised portion 28 with two arms which are aligned parallel to the feed direction 6 and a stem which extends perpendicular to said direction and is inclined downward toward the guide 7a so as to obtain, upon the passage of the end 3b through the slot 9, a momentary straightening of possibly deformed strips.
  • a retention element 29 is conveniently provided on the side of the loader element 2 which is directed toward the direction 6, and is constituted for example by a portion of metal plate which is rigidly coupled to the guides 7a and 7b and contains on the front side the strips 3 which rest on the roller 8.
  • an idle supporting roller 30 is provided along the guide 7b so as to prevent all the strips from bearing on the lower strip which rests on the roller 8.
  • the strips to be fed have a reduced thickness and therefore a reduced weight, it is possible to provide, on the region of the resting plane 4a which is arranged below the loader element 2, an opening 31 which is connected to a known suction device 32.
  • the operation of the feeder device according to the invention is as follows.
  • the strip 3, which is arranged below all the others, is placed in a first position in which its end 3a rests on the roller 8 while its end 3b rests on the plane 4a at the slot 9.
  • the strips 3 progressively descend by gravity along the guides 7a and 7b.
  • the suction opening 31 cushions any rebounds of the strip on the plane 4a.
  • the arm 23 After the passage of the two strips, the arm 23 returns to the correct position by virtue of the spring 26.
  • the extraction element 11 itself that rests the strip on the resting plane, contrary to the extractors of conventional devices. Furthermore, except for the beginning of the movement of the strip performed by the extractor element, the lower strip scrapes against the upper strip only with a small portion, thus avoiding damage to the strips.
  • the feeder device according to the invention fully achieves the intended aim, since by virtue of the fact that the strips are rested on the resting plane by the extractor element it is possible to achieve high operating speeds which can fully and very reliably exploit the productive potentialities of modern assembly lines.
  • a further advantage is that of not interrupting the feed even in the presence of strips which have thicknesses which are lower than required.
  • the feeder device thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept; all the details may furthermore be replaced with technically equivalent elements.
  • the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Closing Of Containers (AREA)
EP90119016A 1989-10-06 1990-10-04 Dispositif automatique pour conduire des planchettes ou similaires à une bande transporteuse, notamment pour machines à assembler des caisses d'emballage Withdrawn EP0421412A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2194789 1989-10-06
IT02194789A IT1236829B (it) 1989-10-06 1989-10-06 Dispositivo alimentare automatico di listelli o simili ad un organo trasportatore, in particolare per macchine assemblatrici di cassette di imballaggio.

Publications (1)

Publication Number Publication Date
EP0421412A1 true EP0421412A1 (fr) 1991-04-10

Family

ID=11189247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119016A Withdrawn EP0421412A1 (fr) 1989-10-06 1990-10-04 Dispositif automatique pour conduire des planchettes ou similaires à une bande transporteuse, notamment pour machines à assembler des caisses d'emballage

Country Status (2)

Country Link
EP (1) EP0421412A1 (fr)
IT (1) IT1236829B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666298A1 (fr) * 1990-09-03 1992-03-06 Corali Bruno Dispositif d'alimentation automatique de lames et analogues, en particulier pour machines d'assemblage de caisses d'emballage.
ES2043510A2 (es) * 1990-06-26 1993-12-16 Corali Maquina alimentadora de tablillas a una estacion de clavado, en particular para el ensamblado de fondos de cajas de embalar.
CN113752353A (zh) * 2021-09-26 2021-12-07 龙泉市柏达智能技术有限公司 一种盒子拼装机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194210A (fr) * 1959-11-06
US2924357A (en) * 1955-10-18 1960-02-09 Stapling Machines Co Slat feeder
US2942758A (en) * 1955-03-11 1960-06-28 Ful Vue Pak Co Carton dispenser with means to withdraw the lowermost carton
DE1781242A1 (de) * 1968-09-13 1971-07-08 Rudolf Mollenhauer Fa Magazin zum Beschicken von Holzverarbeitungsmaschinen mit duennen Brettchen
DE2123192A1 (de) * 1970-05-23 1971-12-09 Corali, Bruno, Carobbio degli Ange-Ii, Bergamo (Italien) Automatisches Verteilermagazin für aufeinandergestapelte Leisten, insbesondere zur Verwendung bei Maschinen für die Erzeugung von Verpackungskisten für Obst und dergleichen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1194210A (fr) * 1959-11-06
US2942758A (en) * 1955-03-11 1960-06-28 Ful Vue Pak Co Carton dispenser with means to withdraw the lowermost carton
US2924357A (en) * 1955-10-18 1960-02-09 Stapling Machines Co Slat feeder
DE1781242A1 (de) * 1968-09-13 1971-07-08 Rudolf Mollenhauer Fa Magazin zum Beschicken von Holzverarbeitungsmaschinen mit duennen Brettchen
DE2123192A1 (de) * 1970-05-23 1971-12-09 Corali, Bruno, Carobbio degli Ange-Ii, Bergamo (Italien) Automatisches Verteilermagazin für aufeinandergestapelte Leisten, insbesondere zur Verwendung bei Maschinen für die Erzeugung von Verpackungskisten für Obst und dergleichen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2043510A2 (es) * 1990-06-26 1993-12-16 Corali Maquina alimentadora de tablillas a una estacion de clavado, en particular para el ensamblado de fondos de cajas de embalar.
FR2666298A1 (fr) * 1990-09-03 1992-03-06 Corali Bruno Dispositif d'alimentation automatique de lames et analogues, en particulier pour machines d'assemblage de caisses d'emballage.
ES2043520A2 (es) * 1990-09-03 1993-12-16 Corali Dispositivo alimentador automatico de tablillas o similares, en particular para maquinas montadoras de cajas de embalar.
CN113752353A (zh) * 2021-09-26 2021-12-07 龙泉市柏达智能技术有限公司 一种盒子拼装机

Also Published As

Publication number Publication date
IT8921947A0 (it) 1989-10-06
IT1236829B (it) 1993-04-02
IT8921947A1 (it) 1991-04-06

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