BE426101A - - Google Patents

Info

Publication number
BE426101A
BE426101A BE426101DA BE426101A BE 426101 A BE426101 A BE 426101A BE 426101D A BE426101D A BE 426101DA BE 426101 A BE426101 A BE 426101A
Authority
BE
Belgium
Prior art keywords
glass
water
strip
roller
sand
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE426101A publication Critical patent/BE426101A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/26Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass

Description

       

   <Desc/Clms Page number 1> 
 



  Perfectionnements aux appareils à meuler le verre. 



   Cette invention est relative aux appareils à meuler le verre qui travaillent simultanément sur les deux faces d'une bande continue de verre et a pour objet des moyens perfection- nés pour entraîner la   bande   à travers l'appareil. 



   Jusqu'à ce jour, la bande de verre a été entraînée par des paires de rouleaux serrant cette bande, 1?.un ou chacun de ces rouleaux étant   commandé.   On a constaté que du sable pro- veant des outils   maleurs   s'accumule dans le passage entre chaque rouleau et le verre et est la cause de détériorations en raison d'une pression excessive entre les rouleaux et le verre et d'une usure des rouleaux. On a en outre constaté qu'il est impossible      

 <Desc/Clms Page number 2> 

 d'enlever le sable du verre d'une manière assez efficace pour empêcher cette accumulation.      



   Suivant l'invention, un rouleau présentant une série de gorges ou rainures à l'endroit du passage entre le rouleau et le verre est combiné avec un ou plusieurs jets d'eau placés de façon à maintenir dans le passage entre le rouleau et le verre une couche d'eau qui est animée d'un mouvement rapide continu. 



  On peut obtenir une série de gorges à l'endroit de passage entre le'rouleau et le verre en pratiquant sur ce rouleau une série de rainures circulaires ou une ou plusieurs rainures hélicoïdales. 



   Sur le dessin annexé: 
La figure 1 est une vue de coté d'une partie d'un appareil à meuler. 



   La figure 2 est une coupe de cet appareil par la ligne A-A de la figure 1. 



   La bande de verre 1 est entraînée dans le sens de la flèche entre les outils meuleurs 2 par des paires de rouleaux 3, 4 serrant cette bande. L'appareil comprend généralement environ quinze paires d'outils meuleurs et un nombre correspondant de paires de rouleaux d'entraînement dont chacune est intercalée entre deux paires d'outils consécutives. On enlève habituellement le sable, qui est utilisé comme abrasif, du verre à l'aide d'une   ràcle 5   et   de.   jets d'eau 6 alimentés par un tuyau à eau 7.

   Le rouleau 3, qui est généralement en caoutchouc, est pourvu d'une série de rainures 8, et des jets d'eau 9 sont placés près du ver- re et du rouleau dans des positions telles que la couche a'eau qui se trouve dans le passage entre le rouleau et le verre est maintenue continuellement en mouvement, 
Bien que la râcle 5 et les jets d'eau 6 enlèvent presque tout le sable du verre, on a trouvé qu'une certaine quan- tité de sable passe audelà de la râcle et, dans le cas du rou- leau cylindrique habituel, s'accumule dans la gorge ou passage 

 <Desc/Clms Page number 3> 

 entre le rouleau et le verre. Grâce aux jets d'eau 9, la   faible   quantité de sable qui arrive près du passage du rou- leau est maintenue en suspension dans la couche d'eau animée d'un mouvement continu et rapide.

   Cette couche d'eau se meut le long du rouleau jusqu'à ce qu'elle atteigne une   rainure ¯8   et elle est alors mise à même de s'échapper en passant d'un c8té à l'autre du rouleau à travers la dite rainure en   enttai-   nant le sable qui reste toujours en suspension. 



   Il est essentiel que la quantité de sable qui atteint le point indiqué en 10 sur la figure 2 soit assez faible pour qu'on salit sûr qu'elle restera en suspension dans l'eau et, par conséquent, il est préférable que la   râcle   et les jets d'eau 6 ou autres organes d'enlèvement du sable soient   conse   vés. Toutefois, si la quantité d'eau utilisée dans les jets
9 était très grande, elle suffirait à écarter des bords de la bande par lavage presque tout le sable. 



   On peut n'utiliser qu'un seul   jet 9   si la vitesse de l'eau est suffisante pour maintenir l'eau animée d'un mouve- ment rapide à l'extrémité du rouleau opposée au jet. A titre d'alternative, on peut utiliser une rangée de jets   pàacés   en différents points de la longueur du rouleau. 



   De préférence, des dispositifs analogues sont prévus sur la face de dessous de la bande, le rouleau 4 présentant aussi des rainures. Il est toutefois possible de nettoyer la face de dessous de la bande de verre du sable qui s'y trouve par des jets d'eau puisque le sable et l'eau peuvent s'échap- per de ladite face sans avoir à atteindre les-bords de la bande.



   <Desc / Clms Page number 1>
 



  Improvements to glass grinding devices.



   This invention relates to glass grinding apparatuses which work simultaneously on both sides of a continuous strip of glass and relates to improved means for driving the strip through the apparatus.



   Heretofore, the glass web has been driven by pairs of rollers gripping this web, one or each of these rolls being ordered. It has been found that sand from bad tools accumulates in the passage between each roller and the glass and is the cause of damage due to excessive pressure between the rollers and the glass and wear of the rollers. . It was further found that it is impossible

 <Desc / Clms Page number 2>

 remove sand from the glass in a manner effective enough to prevent this build-up.



   According to the invention, a roller having a series of grooves or grooves at the location of the passage between the roller and the glass is combined with one or more jets of water placed so as to maintain in the passage between the roll and the glass a layer of water which is animated by a continuous rapid movement.



  A series of grooves can be obtained at the point of passage between le'rouleau and the glass by making on this roller a series of circular grooves or one or more helical grooves.



   On the attached drawing:
Figure 1 is a side view of part of a grinding apparatus.



   Figure 2 is a section of this apparatus taken along the line A-A of Figure 1.



   The glass strip 1 is driven in the direction of the arrow between the grinding tools 2 by pairs of rollers 3, 4 clamping this strip. The apparatus generally includes about fifteen pairs of grinding tools and a corresponding number of pairs of drive rollers each of which is interposed between two consecutive pairs of tools. The sand, which is used as an abrasive, is usually removed from the glass using a scraper 5 and. water jets 6 supplied by a water hose 7.

   The roller 3, which is usually rubber, is provided with a series of grooves 8, and water jets 9 are placed near the glass and the roller in positions such as the water layer which is there. in the passage between the roller and the glass is continuously kept in motion,
Although the squeegee 5 and the water jets 6 remove almost all the sand from the glass, it has been found that some amount of sand passes beyond the squeegee and, in the case of the usual cylindrical roller, s 'accumulates in the throat or passage

 <Desc / Clms Page number 3>

 between the roller and the glass. Thanks to the water jets 9, the small quantity of sand which arrives near the passage of the roller is kept in suspension in the layer of water animated by a continuous and rapid movement.

   This layer of water moves along the roll until it reaches a groove ¯8 and is then able to escape by passing from one side of the roll to the other through the said groove by supporting the sand which always remains in suspension.



   It is essential that the amount of sand which reaches the point indicated at 10 in figure 2 is small enough to be sure that it will remain suspended in the water and, therefore, it is preferable that the scraper and water jets 6 or other sand removal devices are recommended. However, if the amount of water used in the jets
9 was very large, it would be enough to move away from the edges of the strip by washing almost all the sand.



   Only one jet 9 can be used if the water velocity is sufficient to keep the water moving rapidly at the end of the roll opposite to the jet. Alternatively, a row of jets can be used at different points along the length of the roll.



   Preferably, similar devices are provided on the underside of the strip, the roller 4 also having grooves. However, it is possible to clean the underside of the glass strip from the sand therein by jets of water since the sand and water can escape from said face without having to reach the- edges of the tape.


    

Claims (1)

RESUME. ABSTRACT. Appareil à meuler une bande continue de verre par des outils travaillant simultanément sur les deux faces de la bande, du genre dans lequel la bande est entraînée entre les outils par des paires de rouleaux serrant cette bande, cet appareil étant caractérisé par les points suivants, ensemble <Desc/Clms Page number 4> ou séparément: 1. La combinaison d'un rouleau présentant une série de rainures à l'endroit du passage entre le rouleau et le verre avec un ou plusieurs jets d'eau placés de façon à main- dans tenir/ledit passage une couche d'eau animée d'un mouvement conti nu rapide. Apparatus for grinding a continuous strip of glass by tools working simultaneously on both sides of the strip, of the kind in which the strip is driven between the tools by pairs of rollers clamping this strip, this apparatus being characterized by the following points, together <Desc / Clms Page number 4> or separately: 1. The combination of a roller having a series of grooves at the place of the passage between the roller and the glass with one or more water jets placed so as to maintain / in said passage an animated layer of water. with a rapid continuous movement. 2. Un dispositf qui enlève la majeure partie du-sable du verre indépendamment dudit ou desdits jets d'eau. 2. A device which removes most of the sand from the glass independently of said water jet (s).
BE426101D 1937-02-01 BE426101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB832989X 1937-02-01

Publications (1)

Publication Number Publication Date
BE426101A true BE426101A (en)

Family

ID=10551496

Family Applications (1)

Application Number Title Priority Date Filing Date
BE426101D BE426101A (en) 1937-02-01

Country Status (2)

Country Link
BE (1) BE426101A (en)
NL (1) NL46283C (en)

Also Published As

Publication number Publication date
NL46283C (en)

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