EP0638504B1 - Vorrichtung zum Kühlen und Stapeln von Gummibogen - Google Patents

Vorrichtung zum Kühlen und Stapeln von Gummibogen Download PDF

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Publication number
EP0638504B1
EP0638504B1 EP19940202302 EP94202302A EP0638504B1 EP 0638504 B1 EP0638504 B1 EP 0638504B1 EP 19940202302 EP19940202302 EP 19940202302 EP 94202302 A EP94202302 A EP 94202302A EP 0638504 B1 EP0638504 B1 EP 0638504B1
Authority
EP
European Patent Office
Prior art keywords
rubber sheet
conveyor belt
rubber
stacking
clamping
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.)
Expired - Lifetime
Application number
EP19940202302
Other languages
English (en)
French (fr)
Other versions
EP0638504A1 (de
Inventor
Heinz Gutknecht
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.)
Vmi Epe Holland BV
Original Assignee
Vmi Epe Holland BV
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 Vmi Epe Holland BV filed Critical Vmi Epe Holland BV
Publication of EP0638504A1 publication Critical patent/EP0638504A1/de
Application granted granted Critical
Publication of EP0638504B1 publication Critical patent/EP0638504B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/103—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station
    • B65H45/105—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station coacting with fold holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/36—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from tapes, bands, or rollers rolled from under the articles

Definitions

  • the invention relates to a device for stacking a sheet of rubber comprising a cutting device for cutting the rubber sheet, said stacking device containing a conveyor belt with frame for the rubber sheet, the conveyor belt with frame being movable backwards and forwards.
  • Such a device is known from WO-90/12749.
  • the formless mass has been formed by rolling the latter by means of a rolling device, as a result of which a wide band is formed, characterized by a standard width, thickness and temperature and which is still very sticky.
  • the device which is also known under the name of "batch-off" device is also used for reducing the high delivery temperature of 120° to 150° C to a manageable temperature of 25° to 40° C and for applying an anti-sticking means to the surface of the rolled rubber sheet.
  • the rubber sheet can be delivered by means of a stacking device to stacking frames or lifting platforms, the rubber sheet on the stack having one initial end and one far end suitable for further processing on calenders, spraying machine and other devices.
  • the continuous band of rubber, which is supplied by the rubber sheet cooling device is cut into easily handled rubber plates in order to simplify further processing by a separate cutting device for the rubber sheet.
  • the apparatus known from WO-90/12749 can in an economical way stack continuous bands of rubber in a zigzag folded condition as well as rubber plates.
  • This apparatus comprises a skid, an endless supply belt having an upper run and a discharge end adjacent the skid and an endless transport belt below the supply belt wherein the transport belt is horizontally reciprocable with respect to the skid.
  • a web is supplied by the supply belt to the transport belt which carries the web over the skid. When the supply belt has come to its outermost position it returns and thereby deposits the web onto the skid.
  • the present invention aims at an economical manufacturing of continuous bands of rubber as well as rubber plates by means of a device for cooling and stacking a rubber sheet.
  • a device of the type named in the introduction is characterized in that the stacking device contains a clamping device for clamping the rubber sheet onto the conveyor belt at the end of the forward movement of the conveyor belt, and a further clamping device for clamping the rubber sheet during the forward movement of the conveyor belt.
  • This clamping device prevents the rubber sheet from being pulled back during the backward movement, thereby preventing that a lower sheet presents an uneven surface, and the further clamping device keeps the rubber sheet in close contact with the conveyor belt, thereby preventing unevenness in the stacked layers of rubber sheet.
  • the stacking and cutting devices are driven separately, as a result of which it is possible to remove the more maintenance prone cutting device for upkeep, overhaul or replacement, while the rest of the machine can continue to participate in the production process for stacking rubber in a continuous band. Besides, by doing this it is among other things possible to modularly construct the machine, the latter being of advantage when transporting, constructing and maintenancing the device.
  • Figure 1 schematically shows a known rubber sheet cooling device with stacking device.
  • Figure 2 and 3 schematically show an embodiment of a rubber sheet cooling device according to the invention with a stacking as well as a cutting device.
  • Figures 4 to 7 schematically show the steps of stacking a continuous rubber sheet in the one operating method of a rubber sheet cooling device according to the invention.
  • Figures 8 to 10 schematically show the steps of cutting and at the same time stacking the rubber plates in the other operating method of a rubber sheet cooling device according to the invention.
  • a known rubber sheet cooling device 20 is schematically shown in figure 1.
  • this device 20 just mixed or newly-made rubber mixtures 21 are formed into a rubber sheet 26, by means of a rolling device 22.
  • a wide continuous band of rubber characterized by a standard width, thickness and temperature is made, the band of rubber being sticky.
  • Reduction of the high delivery temperature of approximately 120 to 150°C to a manageable temperature of 25 to 40°C and application of anti-stick means to the surface of the rolled rubber sheet takes place by means of a cooling device 23.
  • the cooled rubber sheet 26 is dried by a drying device 24, after which the rubber sheet is delivered to stacking frames or lifting platforms 27 by means of a stacking device 25, the rubber sheet 26 on the sheet having an initial 28 and a far end, which can be arranged optionally, suitable for further processing.
  • a part 25' of a rubber sheet cooling device according to the invention is schematically shown, in which both the stacking and the cutting function can be carried out.
  • the conveyor belt 1 has a frame, that includes, among others, support rollers 3 and 8.
  • the conveyor belt and frame in their entirety can be moved backward and forward between a position as drawn with full lines and a position shown by broken lines. This movement can, for example, be caused by coupling the conveyor belt with its frame to a drive belt 2.
  • Drive belt 2 By driving drive belt 2 the whole of support frame of the conveyor belt, the conveyor belt 1 itself and its support rollers 3 and 8 can be moved.
  • Drive belt 2 is driven by a motor 5, for example a servo direct-current motor or three-phase motor with regulation or a hydro-motor, the support of the drive belt 2 also being realized by roller 4.
  • roller 6 On top of the rubber sheet there is a pressure roller 6, which, in combination with smaller roller 7 sees to it, that the rubber sheet keeps good contact with the conveyor belt 1 below. As a consequence the layers of rubber sheet stacked on top of one another show no unevenness.
  • roller 6 nor 7 are movable by the drive belt 2.
  • the point of reversal of conveyor belt 1 which is formed by roller 8, is movable over a fixed path which is formed between the point of departure of the conveyor belt, indicated by roller 8 and the ultimate position of conveyor belt 1, indicated by roller 8'. This path is controlled by drive belt 2 with its motor 5.
  • the cutting device is shown schematically in figures 2 and 3 by a hingeable cutting knife 11 and a fixed cutting knife 12.
  • these cutting knives can be placed up to both sides of the rubber sheet, as is shown in figure 2, in which situation the rubber sheet cooling device can deliver rubber plates cut to size, or can be movable to beyond the range of movement of the conveyor belt, as is shown in figure 3, in which situation the rubber sheet cooling device is used to stack a continuous rubber sheet.
  • Moving the cutting device can take place in a variety of ways, for example with the help of hinges.
  • the clamping means 14, 15 aims at preventing the rubber sheet from also being pulled back during backward movement and has, moreover, the task of flattening the fold.
  • a roller 17 which is driven by an air cylinder attached to a swivel arm, comes down in order to tighten (figures 5 and 6) and retain the rubber sheet, which is held on one side by the clamping means 14, 15, until a clamping means 16 (fig. 7) takes over the rubber sheet and presses it on the stack after stretching by the roller 17.
  • Clamping means 16 keeps the rubber sheet in place at the next forward movement to the ultimate position of the conveyor belt. It will be clear that before the conveyor belt is moved towards its ultimate position, roller 17 is again moved by hinging action to its position as drawn in figure 5, and before the conveyor belt reaches its ultimate position, clamping device 14, 15 is positioned at a distance from the rubber sheet.
  • clamping device 14, 15 and/or 16 there is a mechanism which is not shown, for controlling the height of the growing stack 13 and this height can be adjusted such that in production stacks of rubber are delivered which are uniform in height.
  • Known embodiments employ mechanisms which make use of photocells for controlling the height of stack 13. As these sorts of mechanisms are placed in the generally very warm, dirty, steamy department where the mixing process takes place, these photocells often do not function consistently due to rapid pollution. A mechanical control system in clamping means 14 and 15 is given preference as this is less susceptible to defects.
  • Figures 8, 9 and 10 show how the combined action between the backward and forward moving conveyor belt 1 cutting device 11, 12 and clamping device 14 is before laying aside, cutting through and stacking up exactly cut, cooled and no longer sticky rubber plates.
  • the backward and forward movement of the conveyor belt 1 between its starting position and its ultimate position takes place in the same way as described above.
  • roller 17 and clamping means 16 are not essential.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Primary Cells (AREA)

Claims (6)

  1. Vorrichtung (25) zum Stapeln eines Gummibogens (26) mit einer Schneidevorrichtung (11, 12) zum Schneiden des Gummibogens (26), wobei die Stapelvorrichtung (25) einen Förderer (1) mit Rahmen (3,8) für den Gummibogen (26) aufweist, wobei der Förderer (1) mit Rahmen (3,8) vorwärts und rückwärts bewegbar ist, dadurch gekennzeichnet, dass die Stapelvorrichtung (25) eine Klemmvorrichtung (14,15) zum Klemmen des Gummibogens (26) auf den Förderer (1) am Ende (8') der Vorwärtsbewegung des Förderers (1) aufweist, und eine weitere Klemmvorrichtung (6,7) zum Klemmen des Gummibandes (26) während der Vorwärtsbewegung des Förderers (1).
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stapelvorrichtung (25) einen auf einem Schwenkarm aufgestellten Roller zum Anziehen und Festhalten des Gummibogens (26) während der Rückwärtsbewegung des Förderers aufweist.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Klemmvorrichtung (14,15) einen mechanischen Kontrollesystem für die Höhe des Stapels (13) des Gummibandes (26) aufweist.
  4. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Schneidevorrichtung (11, 12) durch ein gelenkiges (11) und ein festes (12) Messer gebildet wird.
  5. Vorrichtung nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, dass die Stapel- und die Schneidevorrichtung (11, 12) jeweils getrennt angetrieben werden können.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das gelenkige Messer (11) eine trennbare Einheit mit seinem Antrieb bildet.
EP19940202302 1993-08-12 1994-08-12 Vorrichtung zum Kühlen und Stapeln von Gummibogen Expired - Lifetime EP0638504B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301400A NL9301400A (nl) 1993-08-12 1993-08-12 Inrichting voor het koelen en stapelen van een rubbervel.
NL9301400 1993-08-12

Publications (2)

Publication Number Publication Date
EP0638504A1 EP0638504A1 (de) 1995-02-15
EP0638504B1 true EP0638504B1 (de) 1997-12-29

Family

ID=19862754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940202302 Expired - Lifetime EP0638504B1 (de) 1993-08-12 1994-08-12 Vorrichtung zum Kühlen und Stapeln von Gummibogen

Country Status (4)

Country Link
EP (1) EP0638504B1 (de)
DE (1) DE69407508T2 (de)
ES (1) ES2110691T3 (de)
NL (1) NL9301400A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6341771B1 (en) * 2000-01-25 2002-01-29 The Goodyear Tire & Rubber Company Method of stacking strips of flexible material
CN105836507A (zh) * 2016-05-31 2016-08-10 唐强 蒸锅自动落布成环装置
CN112476564A (zh) * 2020-11-24 2021-03-12 泰兴市双羊机械工程有限公司 一种摆胶分条机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495819A (en) * 1967-07-07 1970-02-17 Curtis Marble Machine Co Folding machine
DE2341235A1 (de) * 1973-08-16 1975-02-20 Borghart Kg Maschinen Metallun Verfahren zum selbsttaetigen, kontinuierlichen und kantengeraden ablegen oder stapeln von leichtverformbaren, flaechigen gegenstaenden, wie abgelaengten, duennen gummiplatten, kalandriertem gewebe, asbestzementtafeln u.dgl., sowie einrichtung zur durchfuehrung des verfahrens
IT1133641B (it) * 1980-10-01 1986-07-09 Gadda Luigi & C Apparecchiature impilatrice di articoli tessili
US5046709A (en) * 1989-04-17 1991-09-10 Illinois Tool Works, Inc. Apparatus for cutting or stacking web materials

Also Published As

Publication number Publication date
ES2110691T3 (es) 1998-02-16
DE69407508T2 (de) 1998-04-16
EP0638504A1 (de) 1995-02-15
DE69407508D1 (de) 1998-02-05
NL9301400A (nl) 1995-03-01

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