EP0681893A1 - Maschine zur selbsttätigen Entfernung von Abfall-Stücken aus gestanzten und gestapelten Kartonbogen - Google Patents

Maschine zur selbsttätigen Entfernung von Abfall-Stücken aus gestanzten und gestapelten Kartonbogen Download PDF

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Publication number
EP0681893A1
EP0681893A1 EP95830190A EP95830190A EP0681893A1 EP 0681893 A1 EP0681893 A1 EP 0681893A1 EP 95830190 A EP95830190 A EP 95830190A EP 95830190 A EP95830190 A EP 95830190A EP 0681893 A1 EP0681893 A1 EP 0681893A1
Authority
EP
European Patent Office
Prior art keywords
clearing
cylinder
carriage
rotation
sheets
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
EP95830190A
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English (en)
French (fr)
Other versions
EP0681893B1 (de
Inventor
Angelo Mastropasqua
Mario Dallanegra
Graziano Zava
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.)
MEGA SERVICE Srl
Original Assignee
MEGA SERVICE 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 MEGA SERVICE Srl filed Critical MEGA SERVICE Srl
Publication of EP0681893A1 publication Critical patent/EP0681893A1/de
Application granted granted Critical
Publication of EP0681893B1 publication Critical patent/EP0681893B1/de
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
    • B26D7/18—Means for removing cut-out material or waste
    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1827—Means for removing cut-out material or waste by tearing

Definitions

  • the present invention relates to a machine for automatically removing the scrap from sheets of cardboard or card which have been punched and stacked so as to form the so-called "pallets".
  • This machines substantially operates on the principle of subsequent working of the four sides of the "pallet”, which automatically makes a 90° rotation as soon as the clearing device has finished its descent along a side thereof while removing all the external scrap.
  • Obviously controls, automatic movements and safety provisions are provided under the central control of a PLC with a double automatic and manual program, the latter being provided with the same safety provisions of the automatic program.
  • the machine substantially includes a steel structure 1 on which a frame 2 and a mobile carriage 3 supporting an assembly 4 for clearing or removing the scrap are mounted.
  • a cylinder 5 whose piston rod carries at the lower end a disk 5a to press from above the sheets' "pallet” and keep it compact during the clearing, is mounted vertically on frame 2 .
  • a plate 10 suitable to act as a support for the stack or "pallet” of sheets to be cleared, is rotatably mounted on a vertical pivot in a middle position within structure 1 and directly below disk 5a , coaxially to cylinder 5 .
  • a lower plate 10a suitable to be peripherically engaged for its locking by the mobile member of a cylinder 6 is provided coaxial to the revolving plate 10 and integral therewith.
  • Another cylinder 7 has the end of its piston pivoted to a projection 11 of the revolving plate 10 .
  • the operating cycle when the machine is in automatic mode, provides that when the "pallet" is positioned on plate 10 one of cylinders 8, 8' is extended (and the other one is at rest, retracted), as well as the two cylinders 9, 9', whereas cylinders 5 and 7 are retracted, in rest position.
  • all motors provided on carriage 3 are not running, namely motor 13 suitable to drive carriage 3 along the structure in any known way, but preferably by means of worms, motor 14 suitable to drive the clearing assembly 4 and motor 15 for the reciprocating vertical motion of said assembly 4 together with motor 14 .
  • the position of carriage 3 and of the clearing assembly 4 (carriage 3 farthest from frame 2 and the clearing assembly 4 in the highest position) is such that sensors 25 and 28 are triggered, respectively the last of three sensors ( 23 , 24 , 25 ) located on structure 1 by carriage 3 in the direction of arrow A, and the higher of two sensors ( 27 , 28 ) vertically located on carriage 3 .
  • Other two sensors 21 , 22 are also provided, respectively located on cylinders 8 , 8 ', as well as some safety sensors ( 29 , 30 , 31 ) for the regular movement of carriage 3 and finally two sensors 32 , 33 respectively located by cylinders 6 and 7 .
  • Various photocells are also provided, which at the beginning of the operating cycle are all clear, and they will be described from time to time when the description of the operation will make it necessary.
  • a first pair of photocells 16 is provided before guides 12 , 12 ' so that upon inserting the stack or "pallet" of sheets therebetween in the direction of arrow A, the photocells are first blanked and then cleared when the pallet is correctly positioned on plate 10 .
  • This activation of photocells 16 puts the machine in emergency condition as far as the operator's safety is concerned, whereby the machine can start again only upon pressing proper pushbuttons located on the switchboard (not shown in the drawings).
  • the pallet is blocked by activating cylinder 5 , which lowers disk 5a to block the sheets from above, as well as the still resting second side cylinder ( 8, 8' ) which completes the blocking of the sheets' stack, while cylinders 9, 9' retract their pistons to the rest position.
  • cylinder 5 which lowers disk 5a to block the sheets from above, as well as the still resting second side cylinder ( 8, 8' ) which completes the blocking of the sheets' stack, while cylinders 9, 9' retract their pistons to the rest position.
  • motor 13 is activated to drive carriage 3 forward until its motion is stopped by another pair of photocells being blanked, namely those indicated with 18 in figs. 1 and 2 .
  • this motion is preferably carried out by means of worms driven by motor 13 .
  • the same photocells 18 control the activation of motor 15 which drives the clearing assembly 4 downwards until it blanks another pair of photocells 19 , located at a specific height on carriage 3 , at an intermediate position between sensors 27 and 28 .
  • These photocells control the further advancing of carriage 3 driven by motor 13 until a feeler 26 , mounted on the carriage and projecting therefrom beyond the clearing assembly 4 , detects the presence of the pallet and therefore the correct position for operating the clearers by activating motor 14 . Simultaneously, the clearing assembly 4 is moved down along one side of the pallet by activating motor 15 .
  • feeler 26 while moving down together with the clearing assembly 4 , follows the pallet's profile and corrects the position of carriage 3 by means of its sensor, while an electronic board provides the adjustment of the force exerted by motor 14 according to the resistance against the scrap removal and to the descent speed of the clearing assembly.
  • the clearing assembly 4 during its descent, meets the lower sensor 27 , the latter stops said descent by stopping motor 15 as well as motor 14 for stopping the operation of the clearing assembly 4 .
  • motor 15 is reactivated to take back upwards the clearing assembly, while also motor 13 is activated to take back carriage to the starting rear position, until sensors 28 and 24 , respectively, are triggered.
  • the triggering of said sensors controls the retraction of cylinders 8 , 8 ' which thus release the side guides 12, 12' while triggering sensors 21 and 22. These in turn control the rotation of the revolving plate 10 .
  • cylinder 6 is first retracted, so as to disengage the lower plate 10a and thus unlock plate 10 , integral therewith, which rotatably supports the pallet.
  • This retraction triggers sensor 32 which activates cylinder 7 to extend the mobile part thereof up to the position indicated in fig. 3 by dotted lines, while having projection 11 of plate 10 make a clockwise rotation of about 45°.
  • the pivot point between cylinder 7 and projection 11 is connected to a free wheel (not shown in the figure), and at the end of said 45° rotation the projection 11 engages a microswitch 34 which controls the immediate return of cylinder 7 to its starting retracted position, at which the other sensor 33 starts a second extension of cylinder 7 for a further 45° rotation until projection 11 engages microswitch 34 again. Therefore, the revolving plate 10 has made a 90° rotation thus placing in front of the clearing assembly 4 a second side of the pallet, adjacent to the first one and not yet cleared.
  • microswitch 34 controls the return of cylinder 7 to the retracted position, at which sensor 33 now activates cylinder 6 to go back into engagement with plate 10a thus locking the revolving plate 10 in the new rotated position.
  • the triggering of sensor 32 indicates to the PLC that the rotation and locking of the plate have been completed, and now the clearing cycle on the second side starts, as mentioned above.
  • cylinder 7 is activated for the fourth time for the last 90° rotation, whereby the pallet is positioned again as it was at the beginning of the operating cycle, with the side cleared for first which is facing assembly 4 again.
  • Cylinders 8 , 8 ' are moved so as to position guides 12, 12' as initially provided to receive the following pallet, as well as cylinders 9, 9' which also take the stopping position.
  • a second operating cycle can now start, which, it should be noted, can also be carried out manually by rotating the relevant selector on the "manual" position and carrying out all the operating steps of the "automatic" cycle by acting from time to time on the relevant controls provided on the switchboard (not shown).
  • the latter also includes four depth correctors (one for each side) in order to achieve the correct positioning of the clearing assembly 4 .
  • the scraps present on the four sides usually have different depths , thus making said corrections absolutely necessary, which however can be varied during the positioning within the machine.
  • two clearing assemblies 4 can be provided, which operate simultaneously on two opposite sides of the pallet, thus requiring a single 90° rotation to complete the operating cycle.
  • the clearing assembly 4 is made up of a plurality of said members 4a placed side by side, all pivoted onto a common shaft 34 , driven by motor 14 , by means of eccentric cams 35 , and pivoted in a second point to a pin 36 connected to the supporting structure of the clearing assembly 4 through a support 37 .
  • the shape of each clearing member is a lever extending towards the free end opposite to the pivot end on shaft 34 .
  • This free end which is the real working tool, is preferably provided with a toothed end 38 to favour the gripping on the edges of the pallet to be cleared from the scrap.
  • Pin 36 is in an intermediate position between shaft 34 with cam 35 and end 38 .
  • the lever members 4a are mounted on the clearing assembly 4 uniformly spaced and so as to have the eccentricity "e” alternately facing opposite directions for adjacent members.
  • eccentricity "e” is directed, in the drawing of fig. 4 , towards pin 36 , in the adjacent member it is opposite, with the eccentric portion of cam 35 facing rearwards, and therefore the corresponding clearing member is shifted forward with respect to the illustrated one.
  • each lever member 4a makes a rotatory movement, around pin 36 , which is staggered with respect to the movement made by the adjacent members, due to the different eccentricity.
  • a suction can be provided with a collecting mouth by the clearing assembly 4 , and mobile therewith, so that the parts of removed scrap are directly conveyed to a recovery container thus leaving the operating environment almost free from waste.
  • a station may be provided for wrapping the pallet with a plastic film as a temporary protection before passing on to the folding-glueing machine and as package in case of transport.
  • the revolving plate 10 acts as a winder, when it is continuously rotated with the pallet thereon already cleared from the scrap, to which pallet there has been adhered the outer web of a film reel which is unrolled, with a certain tension, by rotating around an axis integral with the machine while plate 10 is rotated.
  • the winding may also take place side after side during the clearing operation, rather than continuously.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Cleaning In General (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Paper (AREA)
EP95830190A 1994-05-10 1995-05-10 Maschine zur selbsttätigen Entfernung von Abfall-Stücken aus gestanzten und gestapelten Kartonbogen Expired - Lifetime EP0681893B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940925A IT1269742B (it) 1994-05-10 1994-05-10 Macchina per la rimozione automatica dello sfrido da fogli di cartone o cartoncino fustelati ed accatastati
ITMI940925 1994-05-10

Publications (2)

Publication Number Publication Date
EP0681893A1 true EP0681893A1 (de) 1995-11-15
EP0681893B1 EP0681893B1 (de) 1998-12-23

Family

ID=11368875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95830190A Expired - Lifetime EP0681893B1 (de) 1994-05-10 1995-05-10 Maschine zur selbsttätigen Entfernung von Abfall-Stücken aus gestanzten und gestapelten Kartonbogen

Country Status (3)

Country Link
EP (1) EP0681893B1 (de)
DE (1) DE69506774T2 (de)
IT (1) IT1269742B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106078836A (zh) * 2016-07-20 2016-11-09 芜湖昊轩环保新材料有限公司 导向式板材切割装置
CN106217431A (zh) * 2016-07-20 2016-12-14 芜湖昊轩环保新材料有限公司 可调式板材切割装置
CN111070320A (zh) * 2019-12-05 2020-04-28 中航电测仪器(西安)有限公司 一种应变计的自动上料裁切分拣装置及方法
CN112077915A (zh) * 2019-06-12 2020-12-15 天津玖源自动化设备有限公司 一种pcb板自动分板用固定装置
CN113073455A (zh) * 2021-04-13 2021-07-06 张昌林 一种服饰面料裁切加工方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106217429A (zh) * 2016-07-20 2016-12-14 芜湖昊轩环保新材料有限公司 导向顶压式板材切割装置
CN107914311B (zh) * 2016-08-16 2019-05-31 浙江海象新材料股份有限公司 带侧部定位结构和侧部压紧结构的锁扣型地板的加工设备
CN110843002A (zh) * 2019-11-22 2020-02-28 湖南喜传天下家居有限公司 一种床垫成型用切割装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401270A (en) * 1944-05-22 1946-05-28 Fed Carton Corp Mechanism for punching to interlock sheets of material
DE840497C (de) * 1949-04-23 1952-06-03 Theodor Dipl-Ing Traudt Bearbeitungsmaschine fuer Pappe, Karton, Papier u. dgl.
CH383139A (fr) * 1961-05-26 1964-10-15 Ruud Gunnar Procédé et appareil pour l'enlèvement de déchets lors de la préparation d'ébauches de récipients en matières en forme de feuilles
FR2629747A1 (fr) * 1988-04-06 1989-10-13 Bula Fils Sa Machine de finissage de pieces moulees ou usinees

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401270A (en) * 1944-05-22 1946-05-28 Fed Carton Corp Mechanism for punching to interlock sheets of material
DE840497C (de) * 1949-04-23 1952-06-03 Theodor Dipl-Ing Traudt Bearbeitungsmaschine fuer Pappe, Karton, Papier u. dgl.
CH383139A (fr) * 1961-05-26 1964-10-15 Ruud Gunnar Procédé et appareil pour l'enlèvement de déchets lors de la préparation d'ébauches de récipients en matières en forme de feuilles
FR2629747A1 (fr) * 1988-04-06 1989-10-13 Bula Fils Sa Machine de finissage de pieces moulees ou usinees

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106078836A (zh) * 2016-07-20 2016-11-09 芜湖昊轩环保新材料有限公司 导向式板材切割装置
CN106217431A (zh) * 2016-07-20 2016-12-14 芜湖昊轩环保新材料有限公司 可调式板材切割装置
CN112077915A (zh) * 2019-06-12 2020-12-15 天津玖源自动化设备有限公司 一种pcb板自动分板用固定装置
CN111070320A (zh) * 2019-12-05 2020-04-28 中航电测仪器(西安)有限公司 一种应变计的自动上料裁切分拣装置及方法
CN111070320B (zh) * 2019-12-05 2021-08-17 中航电测仪器(西安)有限公司 一种应变计的自动上料裁切分拣装置及方法
CN113073455A (zh) * 2021-04-13 2021-07-06 张昌林 一种服饰面料裁切加工方法
CN113073455B (zh) * 2021-04-13 2022-09-13 湖北嘉扬制衣有限公司 一种服饰面料裁切加工方法

Also Published As

Publication number Publication date
ITMI940925A0 (it) 1994-05-10
DE69506774D1 (de) 1999-02-04
EP0681893B1 (de) 1998-12-23
IT1269742B (it) 1997-04-15
ITMI940925A1 (it) 1995-11-10
DE69506774T2 (de) 1999-08-05

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