EP0530772A1 - Procédé et dispositif pour la fabrication d'anses en céramique pour récipients munis de telles anses - Google Patents

Procédé et dispositif pour la fabrication d'anses en céramique pour récipients munis de telles anses Download PDF

Info

Publication number: EP0530772A1
Authority: EP; European Patent Office
Prior art keywords: handles; handle; web; bar; pliers
Prior art date: 1991-09-06
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

EP92114988A

Other languages

German (de)

English (en)

Other versions

EP0530772B1 (fr

Inventor

Klaus-Eugen Ing. Hanft

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.)

Erich Netzsch GmbH and Co Holding KG

Original Assignee

Erich Netzsch GmbH and Co Holding KG

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.)

1991-09-06

Filing date

1992-09-02

Publication date

1993-03-10

1992-09-02 Application filed by Erich Netzsch GmbH and Co Holding KG filed Critical Erich Netzsch GmbH and Co Holding KG

1993-03-10 Publication of EP0530772A1 publication Critical patent/EP0530772A1/fr

1995-06-14 Application granted granted Critical

1995-06-14 Publication of EP0530772B1 publication Critical patent/EP0530772B1/fr

2012-09-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0018—Separating articles from each other

Definitions

the invention relates to a method for producing ceramic handles for handle vessels, in which a plurality of handles are formed together with a bar connecting their ends, in particular die-cast, when the handles are formed, separating points are prepared between these and the bar, and the handles are then at the separating points be separated from the bar.
the invention further relates to a device for performing such a method.
DL-PS 99325 describes a method for producing and attaching handles to cups and the like.
the cups and handles are annealed separately, the handles are cut and ground mechanically and then attached to the cups with a binder.
annealed pairs of handles can be trimmed at the ends of the handles using a device that has four adjustable cutting wheels. The ends of the trimmed handles are then ground using a rotating grinding wheel, the dimensions of which correspond to those of the cup.
Trimming annealed handles with cut-offs requires some care to avoid damaging the ends of the handles. The time required for the cut-off is therefore noticeably greater than that for the subsequent shape grinding of the handle ends. Cut-off also creates a lot of dust, to which the dust created during the subsequent shape grinding is added.
the invention is based on the object of designing a method for producing handles for handle vessels and a device for carrying out the method in such a way that contamination and loss of time are avoided as far as possible.
the incorporation of the separation points does not require any additional time when molding, especially die-casting the handles. It is possible to cut the bar, which has only been dried in leather, into individual webs and to break off the white-dried handles from the web in a considerably shorter time than a cut-off. No dust is generated when cutting and breaking off, so that no suction device is required. The individual webs are far less likely to break than the original bar, which extends over several web lengths. Therefore, disturbances in the course of the process due to coarse fragments must not be expected.
successive webs are formed together with a bridge part connecting them to one another, which is then cut out in the leather-hard state.
Fig. 1 several handles 10 are shown, which have been formed by die casting from ceramic mass and then first dried as hard as leather.
the handles 10 are each connected to a web 12 via separation points 14, at which ends of the handles are later to be exposed and processed.
Several - in the example shown five - webs 12 are connected to one another by bridge parts 16 to form a long strip which has been cast in the same operation as the handle 10 and has been dried together with the leather hard.
the bridge parts 16 between the webs 12 are cut out;
Corresponding section lines 18 are shown in FIG. 1.
a cutting device of known type can be used, which has, for example, a taut wire as the cutting means.
the handles 10 which are still connected to the associated web 12 after the bridge parts 16 have been removed are also dried in a manner known per se, e.g. by moving them through an annealing furnace.
the handles 10 are then moved further with a conveyor 20 shown in FIG. 2, which has an endless conveyor belt 24 running over rollers 22 and can be driven step by step.
Holding plates 26 are fastened on the conveyor belt 24 at intervals which correspond to one conveying step, from which holding pins 28 protrude.
the holding pins 28 on each holding plate 26 are arranged in such a way that they are jointly able to hold a web 12 in a position in which the associated handle 10 protrudes laterally beyond the conveyor belt 24 and the separation points 14 are exposed.
the bracket 30 includes a base plate 34 with a bearing block 36 on which a two-armed lever 38 is pivotally mounted about a horizontal axis 40 parallel to the conveying direction of the conveyor 20.
the lever 38 has an arm 42 which is arranged above the conveyor 20 and has an elastic covering 44 on its underside.
the second arm 46 of the lever 38 extends over a hydraulic piston-cylinder unit 48 standing on the base plate 34 and is connected to the base plate by a spring 50 which counteracts the piston-cylinder unit 48 and tries to hold the lever 38 in one position in FIG which the arm 42 releases the web 12.
a spring 50 which counteracts the piston-cylinder unit 48 and tries to hold the lever 38 in one position in FIG which the arm 42 releases the web 12.
the piston-cylinder unit 48 is under pressure, the web 12 is clamped almost rigidly between the holding plate 26 and the arm 42.
the pliers 32 have a bracket 52 on which a stationary leg 54 is arranged. This carries a soft, resilient support 56 for the handle 10, which is to be broken off from the associated web 12.
a bearing block 58 projects upwards beyond the fixed leg 54, on which a movable leg 60 of the tongs 32 is pivotally mounted about a horizontal axis 62 parallel to the conveying direction of the conveyor 20.
a covering 64 is fastened above the resilient support 56, which, like the covering 44, has a certain elasticity, but is considerably stiffer than the soft, elastic support 56.
the support 56 has an upper side 66 which is flat in the unloaded state and lies in the same plane as the upper side of the opposite holding plate 26. This plane is horizontal in the example shown, but this is not absolutely necessary. It is essential that the handle 10 yield to a force F acting on it in the direction of the support 56 and can thereby break off from the web 12 at the separation points 14.
a piston-cylinder unit 68 is arranged on the bracket 52, which moves the movable leg 60 of the pliers 32 in a clockwise direction according to FIG. 2 can pivot against the action of a return spring 70.
the covering 64 first presses on the area of the handle 10 which is furthest away from the separating points 14 and thereby loads this with a bending moment which in the area of the separating points 14 causes tensile stresses at the top and compressive stresses below, so that the handle 10 passes through a bending break is separated from the web 12.
the pliers 32 As an alternative to the described configuration of the pliers 32 with a rigid leg 54 and flexible support 56, it can be provided that this support is replaced by an only moderately elastic covering, but the pliers 32 are arranged to be movable as a whole, for example, by one to the conveying direction of the Conveyor 20 parallel axis lying in the region of the handle 10 is pivotable.
the pliers 32 can be moved away from the holder 30 after the handle 10 has broken off while still holding it, for example by pivoting about a vertical axis 72, about the handle 10 either directly into the working area of a device to grind the ends of the handles or to hand it over to a conveyor who carries out this transport.

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Mechanical Engineering (AREA)
Treatment And Processing Of Natural Fur Or Leather (AREA)
Knives (AREA)
Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

EP92114988A 1991-09-06 1992-09-02 Procédé et dispositif pour la fabrication d'anses en céramique pour récipients munis de telles anses Expired - Lifetime EP0530772B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4129661A DE4129661C2 (de)	1991-09-06	1991-09-06	Verfahren und Vorrichtung zum Herstellen keramischer Henkel für Henkelgefäße
DE4129661		1991-09-06

Publications (2)

Publication Number	Publication Date
EP0530772A1 true EP0530772A1 (fr)	1993-03-10
EP0530772B1 EP0530772B1 (fr)	1995-06-14

Family

ID=6440011

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92114988A Expired - Lifetime EP0530772B1 (fr)	1991-09-06	1992-09-02	Procédé et dispositif pour la fabrication d'anses en céramique pour récipients munis de telles anses

Country Status (2)

Country	Link
EP (1)	EP0530772B1 (fr)
DE (2)	DE4129661C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2243608A3 (fr) *	2009-03-04	2011-04-13	Maschinen- und Stahlbau Julius Lippert GmbH & Co. KG	Elément de liaison d'anse
CN114888946A (zh) *	2022-06-06	2022-08-12	常州市赫铭自动化科技有限公司	蜂窝陶瓷湿坯与泡沫工装翻转分离机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102009012274B3 (de) *	2009-03-04	2010-07-22	Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg	Anlage zum automatischen Anbringen von Henkeln an Keramikgegenständen wie Tassen, Becher oder dergleichen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB906272A (en) *	1957-12-19	1962-09-19	Service Eng Ltd	Improvements in or relating to the manufacture of handles for ceramic ware
DE2336822A1 (de) *	1973-07-19	1975-02-06	Dorst Keramikmasch	Maschine zum schneiden und putzen von henkeln oder aehnlichen formteilen
FR2505723A3 (fr) *	1981-05-15	1982-11-19	Netzsch Maschinenfabrik	Dispositif de decoupage d'anses ceramiques

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1394465A (en) *	1920-08-24	1921-10-18	Benton James	Die and process for making cup-handles
DE6808674U (de) *	1968-11-26	1969-06-04	Netzsch Maschinenfabrik	Vorrichtung zur herstellung von formlingen aus vorzugsweise keramischen giessmassen.
DD99325A1 (fr) *	1972-03-17	1973-08-13	Heidelberg Portland Zement

1991
- 1991-09-06 DE DE4129661A patent/DE4129661C2/de not_active Expired - Fee Related
1992
- 1992-09-02 DE DE59202514T patent/DE59202514D1/de not_active Expired - Fee Related
- 1992-09-02 EP EP92114988A patent/EP0530772B1/fr not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB906272A (en) *	1957-12-19	1962-09-19	Service Eng Ltd	Improvements in or relating to the manufacture of handles for ceramic ware
DE2336822A1 (de) *	1973-07-19	1975-02-06	Dorst Keramikmasch	Maschine zum schneiden und putzen von henkeln oder aehnlichen formteilen
FR2505723A3 (fr) *	1981-05-15	1982-11-19	Netzsch Maschinenfabrik	Dispositif de decoupage d'anses ceramiques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2243608A3 (fr) *	2009-03-04	2011-04-13	Maschinen- und Stahlbau Julius Lippert GmbH & Co. KG	Elément de liaison d'anse
CN114888946A (zh) *	2022-06-06	2022-08-12	常州市赫铭自动化科技有限公司	蜂窝陶瓷湿坯与泡沫工装翻转分离机
CN114888946B (zh) *	2022-06-06	2023-06-23	常州市赫铭自动化科技有限公司	蜂窝陶瓷湿坯与泡沫工装翻转分离机

Also Published As

Publication number	Publication date
DE4129661A1 (de)	1993-03-18
EP0530772B1 (fr)	1995-06-14
DE4129661C2 (de)	1995-02-23
DE59202514D1 (de)	1995-07-20

Legal Events

Date	Code	Title	Description
1993-01-22	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-03-10	17P	Request for examination filed	Effective date: 19921228
1993-03-10	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE FR IT
1994-08-31	17Q	First examination report despatched	Effective date: 19940718
1995-04-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-06-14	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR IT
1995-06-27	ITF	It: translation for a ep patent filed
1995-07-20	REF	Corresponds to:	Ref document number: 59202514 Country of ref document: DE Date of ref document: 19950720
1995-09-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19950913 Year of fee payment: 4
1995-09-22	ET	Fr: translation filed
1995-09-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19950926 Year of fee payment: 4
1996-04-19	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-06-05	26N	No opposition filed
1996-09-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19960930
1997-06-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19970603
1997-07-25	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1997-08-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-09-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050902

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