WO1999005915A2 - Method and device for handling waffle sheets pneumatically - Google Patents
Method and device for handling waffle sheets pneumatically Download PDFInfo
- Publication number
- WO1999005915A2 WO1999005915A2 PCT/EP1998/004569 EP9804569W WO9905915A2 WO 1999005915 A2 WO1999005915 A2 WO 1999005915A2 EP 9804569 W EP9804569 W EP 9804569W WO 9905915 A2 WO9905915 A2 WO 9905915A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- face
- air
- deflection plate
- parallel
- wafer sheet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/911—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers with air blasts producing partial vacuum
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C9/00—Other apparatus for handling dough or dough pieces
- A21C9/08—Depositing, arranging and conveying apparatus for handling pieces, e.g. sheets of dough
Definitions
- the invention relates to a method for the pneumatic handling of wafer sheets, wherein a vacuum is generated between a wafer sheet and an end face of the holding plate facing the wafer sheet.
- wafer sheets have to be handled in a variety of ways after the baking process and up to the production of coated or filled waffles.
- the wafer sheets have to be lifted and put down, turned, swiveled, stacked and unstacked.
- vacuum suction devices have been used in the past instead of mechanical gripping devices, in which the waffle sheets are sucked and held by a suction process on the end face of a holding plate, whereupon the holding plate in each required way is moved, for example raised and / or pivoted.
- suction channels open in the end face of the holding plate and are connected to a vacuum source.
- Loose waffle particles and cream residue can be sucked in during the suction process. This can lead to pollution or even Block the suction channels or other connected vacuum lines.
- the object of the invention is therefore to provide a method of the type mentioned, in which there is no risk of clogging or contamination of the connected lines.
- This object is achieved in that a surface-parallel air flow is generated between the end face and the wafer sheet.
- This surface-parallel air flow creates a negative pressure between the wafer sheet and the end face facing it, through which the wafer sheet is sucked in the direction of the end face. Nevertheless, no air is sucked into channels, so that no contaminants can be sucked in.
- the air flowing between the wafer sheet and the face exits into the environment at the edge of the wafer sheet. Impurities entrained by the air flow precipitate as a result of the slowing down of the emerging air flow or can be caused by conventional ones Extraction hoods are collected. There is no risk of contamination or clogging of lines, suction boxes or filters.
- the air flow parallel to the surface is preferably generated by supplying compressed air in a central region of the end face and outlet in the edge region of the end face.
- the invention also relates to an apparatus for performing the method.
- a device with a movable holding plate which forms the end face into which at least one air duct opens
- the air duct is connected to a compressed air source, for example also a blower, and that a baffle plate parallel and in front of the mouth of the air duct is arranged at a distance from the end face, an air outlet gap being formed between the deflection plate and the end face.
- the deflection plate can be arranged at a fixed distance or at an adjustable distance from the end face. Instead, it is also possible to guide the deflecting plate so that it can move in parallel with respect to the end face, so that it automatically adjusts to a favorable distance under the effect of the emerging air flow.
- FIG. 1 shows a section through a holding plate of a device for the pneumatic handling of wafer sheets
- FIGS. 1 and 3 a further modified embodiment of a holding plate for handling waffle sheets
- FIG. 6 is an enlarged detail at VI in Fig. 5, Fig. 7 in a section corresponding to FIGS. 1, 3 and 5, a holding plate for handling profiled wafer sheets and
- FIG. 1 shows a holding plate 1, which forms a movable part of a device (not shown) for handling waffle sheets 2.
- the holding plate 1 has a connecting piece 3, through which an air duct 4 extends, which is connected to a compressed air source 5, which is only schematically indicated in FIG. 1.
- the air channel 4 opens into the central region of the holding plate 1, which has an end face 6 facing the wafer sheet 2.
- a deflection plate 8 is arranged parallel and at a distance from the end face 6.
- An air outlet gap 9 is formed between the deflection plate 8 and the end face 6, through which an air flow emerges parallel to the end face 6 on all sides.
- the deflection plate 8 is connected on its rear side to a guide pin 10 which is received in the air duct 4 with lateral play.
- a threaded section 11 at the opposite end of the guide pin 10 is screwed into an internal thread of the connecting piece 3 and carries a lock nut 12. This limits the axial position of the guide pin 10 and thus the width of the air outlet gap 9.
- the surface-parallel air flow between the end face 6 of the holding plate 1 and the waffle sheet 2 creates a negative pressure in the gap between the end face 6 and the waffle sheet 2, through which the waffle sheet 2 is sucked in the direction of the end face 6 or is pressed by the ambient pressure, as in FIG 1 is indicated by arrows 13.
- the parallel air flow emerges at the edge of the holding plate 1, as indicated by arrows 14.
- the wafer sheet 2 thus held in its position in front of the end face 6 can be handled in the required manner by lifting, pivoting or other movement of the holding plate 1, for example being lifted and stacked. In order to detach the wafer sheet 2 from the holding plate 1, it is sufficient to interrupt the compressed air supply from the compressed air source 5.
- the modified embodiment shown in FIGS. 3 and 4 differs from the embodiment according to FIGS. 1 and 2 essentially in that the deflection plate 8 is fastened on its rear side via individual spacers 15 at a fixed distance in front of the end face 6. At the edge of the end face 6 of the guide plate 1, lateral guide stops 16 are attached, which hold the edge of the wafer sheet 2 against lateral displacement.
- the embodiment according to FIGS. 5 and 6 differs from the previously described embodiments essentially in that the deflection plate 8 arranged in front of the mouth 7 of the air duct 4 is opposite the End face 6 is movable in parallel.
- the deflection plate 8 is therefore arranged to be floating to a limited extent.
- the guide pin 10 attached to the rear side of the deflection plate 8 here carries at its free end a stop ring 17 which strikes a shoulder 18 of the air duct 4 and thus limits the movement of the deflection plate 8 perpendicular to the end face 6.
- the deflection plate 8 ' is provided on its outside facing the wafer sheet 2' with a centering projection 19 which engages in a recess 20 in the wafer sheet 2 'and thereby the wafer sheet 2' in its Centered in front of the end face 6.
- the air outlet gap 9 1 here consists of air slots which are adapted in shape and position to the wafer sheet 2 'to be held.
- the waffle sheet 2 has bulges 21 which face the end face 6 and bear against it.
- the air flow parallel to the surface flows between these bulges 21 and, in the manner already described, also generates a negative pressure here, which holds the wafer sheet 2 ′ on the holding plate 1.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Manipulator (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98943760A EP0998201A1 (en) | 1997-08-01 | 1998-07-21 | Method and device for handling waffle sheets pneumatically |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19733215.3 | 1997-08-01 | ||
DE1997133215 DE19733215A1 (en) | 1997-08-01 | 1997-08-01 | Method and device for the pneumatic handling of wafer sheets |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999005915A2 true WO1999005915A2 (en) | 1999-02-11 |
Family
ID=7837628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/004569 WO1999005915A2 (en) | 1997-08-01 | 1998-07-21 | Method and device for handling waffle sheets pneumatically |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0998201A1 (en) |
DE (1) | DE19733215A1 (en) |
WO (1) | WO1999005915A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1641037A1 (en) * | 2004-09-22 | 2006-03-29 | Singulus Technologies AG | Method and device to hold and transport workpieces having flat surfaces |
WO2009041861A1 (en) * | 2007-09-25 | 2009-04-02 | Sik Institutet För Livsmedel Och Bioteknik Ab | Device and method for lifting and handling of objects |
WO2011082774A1 (en) * | 2009-12-15 | 2011-07-14 | A. Loacker Ag | Waffle |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0522552D0 (en) * | 2005-11-04 | 2005-12-14 | Univ Salford The | Handling device |
DE102009051567A1 (en) * | 2009-10-22 | 2011-04-28 | Alexander Borowski | Bernoulli nozzle, Bernoulli nozzle gripper device and method of manufacture |
DE102009051565A1 (en) * | 2009-10-22 | 2011-04-28 | Alexander Borowski | Intake gripper device for flat substrates |
JP6188123B2 (en) * | 2012-12-28 | 2017-08-30 | 芝浦メカトロニクス株式会社 | Bonding device and bonding processing method |
-
1997
- 1997-08-01 DE DE1997133215 patent/DE19733215A1/en not_active Withdrawn
-
1998
- 1998-07-21 EP EP98943760A patent/EP0998201A1/en not_active Withdrawn
- 1998-07-21 WO PCT/EP1998/004569 patent/WO1999005915A2/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1641037A1 (en) * | 2004-09-22 | 2006-03-29 | Singulus Technologies AG | Method and device to hold and transport workpieces having flat surfaces |
WO2009041861A1 (en) * | 2007-09-25 | 2009-04-02 | Sik Institutet För Livsmedel Och Bioteknik Ab | Device and method for lifting and handling of objects |
WO2011082774A1 (en) * | 2009-12-15 | 2011-07-14 | A. Loacker Ag | Waffle |
Also Published As
Publication number | Publication date |
---|---|
EP0998201A1 (en) | 2000-05-10 |
DE19733215A1 (en) | 1999-02-04 |
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