FR2667580A1 - Operating sequence for an installation for producing double glazing - Google Patents

Abstract

The sequence comprises the supply of a first pane to the arrival station B; its transfer to the station C, where a spacing bead is deposited on the pane; and its transfer onto the table K of the assembly station F-K. During these operations, a second pane arrives on the table F of this assembly station. The person in charge of fitting the spacing bead thus has no need to await the end of assembly in order to deposit a bead on the following third pane, since these operations may be carried out at the same time. This makes it possible to double the production of double glazing.

Description

Operating sequence for double glazing production installation.

 The present invention relates to an operating sequence for a double glazing production installation, comprising inter alia an operation consisting in placing a spacer bead on a first window, in assembling a second window with the first then in pressing it therewith. 'Intermediate of said bead, the pressing operation possibly being accompanied by a heating phase, as a result of which the double glazing thus produced is removed.

 The installation of the spacer cord can be entirely manual, or be assisted by an apparatus.

 It is carried out on a glass, in principle laid flat, that is to say, leaving the vertical path of the glass upon entering the installation.

 When a cord is laid on the first glass, the worker in charge of this operation of laying the cord must wait and is idle at least for the time necessary to apply the second glass to the first and to evacuate the double glazing thus formed to the next pressing and heating station.

 This results in significant downtime and productivity that is far from optimal.

 The object of the present invention is to remedy this drawback and to increase productivity by imagining another sequence of operation of the installation.

 To this end, an operating sequence of the general type defined at the start will be, in accordance with the present invention, essentially characterized in that it comprises - an operation I of bringing a first ice cream to a first table at a post of 'arrival located opposite a flat lay station of said spacer cord; - an operation II passing said first glass from the first table to a second table provided at said laying station - an operation III of laying said spacing cord on said first glass at the laying station - an operation IV for bringing said first window equipped with its cord on a third table in a position of an assembly station, this operation immediately following that of laying the cord - an operation V of bringing a second window to a fourth table in another position of said assembly station, this operation being carried out essentially during the laying of the cord on said first window and the transfer of the first window from the second table to the third - an operation VI of assembly of the first and second windows at said station 'assembly by relative pivoting of said third and fourth tables towards each other, operation followed by the heating and pressing operation and then the evacuation of the double e glazing thus obtained as a result of which the above operations are repeated in the same manner, on the one hand with a third glass arriving on said first table after passing from said second glass to said fourth table, and on the other hand with a fourth window, taking the place of the second window after removal of the previous double glazing.

 It will be easier to understand the operation of such a sequence on reading the example given below, but it can already be noted that the duplication of the post of laying the spacer cord and the assembly post makes it possible to eliminate the dead times of the prior art. In fact, as soon as a cord has been laid, the worker assigned to this task will not need to wait for the assembly and removal of the double glazing to proceed with the laying of a new cord; the first window is removed from the installation station as soon as the cord is installed, and the installation time has given time for the next "first" window, called "third window", to arrive in position vis-à-vis the installation station, where it can therefore arrive as soon as the previous glass is removed.

 This eliminates downtime drastically, and we realized that we managed to double productivity in this way, without increasing staff. There is therefore a decisive advantage of an installation having an operating sequence in accordance with the invention.

 This sequence can also be characterized in that said operation It comprises a pivoting of said first table from a vertical position to a horizontal position bringing it in line with said second table, the return of said first table to its vertical position s 'then performing before operation V, at the start of operation III of laying the spacer cord on the first glass.

 The first glass can thus easily pass from the first table to the second by a simple translation, and without the risk of producing stains on that of its faces which is intended to receive the spacer cord.

 An embodiment of the invention will now be described by way of non-limiting example, with reference to the single figure of the accompanying drawing, which schematically represents an installation for the production of double glazing which can operate according to the above-defined sequence.

 In this installation, the successive windows can move (in the direction of the arrows) from one station to the next, some of them traveling vertically on edge, thanks to trains of rollers or rollers shown diagrammatically in 1, associated with cushions. air or other supports provided on the corresponding tables, and for the others horizontally (between stations C and K), on air cushions, stones or rollers, the various conveyors used being motorized and can also use suction cups, depending on all known techniques in this field.

 This being so, reference has been made to A for a position for vertically translating the windows leaving the washing machine.

The next station B, called the arrival station, has a first table capable of pivoting about a horizontal axis, to pass from the vertical (or approximately vertical) position B, to the horizontal position B ', as indicated by the arrow 3 (for the sake of simplification, the item under consideration is identified at the corresponding table, and the various windows, which can be considered to be perfectly transparent, are not shown). The passage of the first screen from station A to station B constitutes what was called operation I above. The following operation II causes the first screen to pass from position B 'to position C, it is that is to say on the second table provided in this laying station C, by a simple translational movement. Any known means can be used for this, such as a carrying belt (see reference 2) squeegee and the like, but the transfer B'-C can also be carried out by hand. We see in any case that, thanks to the pivoting movement BB 'followed by the translation
B'-C the face of the first glass which at station B rests on the support rollers or the like of the first table will be directed downwards at station C, so that operation III of laying the spacer cord (not shown) will be on a perfectly clean upper face. This would not be the case if one went directly from B to C by a pivoting movement opposite to the movement BB '(represented by arrow 3).

 It should be noted here that the horizontal setting of the first glass could be carried out in a single tilting movement, by moving its upper edge backwards and downwards, and its lower edge forward , this operation must however be carried out upstream of the laying station C.

 It should also be noted that station C may include a suction cup, which can be motorized in rotation and in translation; in fact, whether the installation of the spacer cord is manual or assisted by an apparatus, it is advisable to be able to rotate the glass after laying the cord along each of its sides, especially for large-sized windows.

 As soon as the laying of the cord is thus carried out, the first window thus equipped with its cord is brought (operation IV) to a third table, in a position K of an assembly station FK, this by means of a transfer table E. The upper right corner (in the drawing) of the glass is positioned at the reference location marked by the arrow X. These transfer and positioning operations can be manual or automatic.

 During operations III and IV which have just been described, the first table of the arrival station B has returned from its horizontal position B 'to its vertical position (pivoting in the opposite direction to that of arrow 3), and a second glass, rolling on the train of rollers or rollers 1, arrived, after passing over the table of the station B and the transfer table D, on a fourth table, in a position F of the aforementioned assembly station FK; this second glass is of course carefully positioned with respect to the reference X, (this is the operation called "operation V"), as a result of which this second glass will be assembled with the first, as will be described below .

 The next window from station A, which is then the third window, is positioned vertically at station B, ready to follow exactly the same cycle as the first window (pivoting at B ', etc.). In this way, this third window can reach the installation station C immediately after the first window has left this station towards the station K, without the sealer having to wait for it. This explains the considerable productivity gain mentioned above.

 The next glass, namely the fourth, takes the place of the second, and will arrive on the fourth table, at position F of the assembly station FK, while facing the third glass , then arrived, provided with its spacer cord, on the third table (position K).

 Operation VI of assembling the first glass to the second (from the third to the fourth and so on), will be carried out in part when the third glass arrives on the first table of station B, and partly during movement B-B ', that is to say during the flattening of this third glass. This assembly at the F-K station can be carried out in different ways.

 For example, the third table K can come vertically, towards the fourth table F, or on the contrary the table F can come horizontally, towards the table K.

 In the second case, which involves horizontal assembly, the two windows must be brought vertically, assuming the following heating operations G and pressing H, as well as the final reception operation I, take place in this position, as shown in the drawing.

The position of double glazing at posts
GHI can however be horizontal. In this case and assuming that the assembly is done vertically after a movement from K to F, it will obviously be necessary to bring the table K to the horizontal before the start of the double glazing which it carries towards the station G.

 It should also be noted, as another variant, that the second glass could, like the first, be laid flat at station B, instead of being left vertical. The transfer to the positions D then F would then be done horizontally with the same referencing with respect to the reference X. The assembly of the two panes would then be of the so-called "butterfly" type, namely that the initially horizontal tables K and F would pivot l 'towards each other to carry out the assembly. This assembly could also be vertical or horizontal, again with the continuity of the transfer to the following heating stations G and pressing H, horizontal assembly being preferred in the event of the installation of a double barrier, since this does not can hardly arise except horizontally.

 It has been clearly understood, in the light of the foregoing, that the essential difference between a sequence according to the invention and the known sequences can be summarized as follows: in the known sequences, the time of laying of the intermediate cord s '' adds to the other times, namely to the time necessary for the circulation of the windows, the tilting of the tables or conveyors, etc.

 On the contrary, with a sequence in accordance with the invention, these times are no longer added but overlap, since the aforementioned operations can be carried out during the laying of the cord; the actual production time is now limited to the time required to lay the cord. This is what makes it possible to double production, which, with an installation served by only three people, can go from 250 to more than 500 double glazing units per eight-hour periods.

 As goes without saying and as it already follows from the above, the invention is in no way limited to those of its modes of application and embodiments which have been more particularly envisaged, it embraces, on the contrary, all variants.

Claims (5)

 1. Operating sequence for installation for producing double glazing, comprising inter alia an operation consisting in placing a spacer bead on a first window, in assembling a second window with the first and then pressing it through said bead, the pressing operation possibly being accompanied by a heating phase, after which the double glazing thus produced is removed, characterized in that it comprises - an operation I of bringing a first glass onto a first table at an arrival station (B) located opposite a station (C) for laying flat said spacer cord; - an operation II passing said first glass from the first table to a second table provided at said laying station (C) - an operation III of laying said spacing cord on said first glass at the laying station (C); - an operation IV for bringing said first window fitted with its cord onto a third table in a position (K) of an assembly station (FK), this operation immediately following that of laying the cord - an operation V d 'brought a second glass on a fourth table in a position (F) of said assembly station (FK), this operation being carried out essentially during the laying of the cord on said first glass and the transfer of the first glass from the second table at the third - an operation VI of assembling the first and second windows to said assembly station (FK) by relative pivoting of said third and fourth tables towards each other, operation followed by the pressing operation and heating and then evacuating the double glazing thus obtained as a result of which the above operations are repeated in the same way, on the one hand with a third glass arriving on said first table after passage of said secon of ice to said fourth table, and on the other hand with a fourth window, taking the place of the second window after removal of the previous double glazing.  2. Sequence according to claim 1, characterized in that said operation It comprises a pivoting of said first table from a vertical position (B) to a horizontal position (B ') bringing it in line with said second table, the return of said first table to its vertical position (B) then taking place before operation V, at the start of operation III of laying the spacing cord on the first glass.  3. Sequence according to claim 1, characterized in that said operation It consists in passing said first lens in a single tilting movement, by moving its upper edge backwards and downwards and its lower edge forward , from the arrival station (B) to the installation station (C).  4. Sequence according to claim 2 or 3, characterized in that the operation VI of assembling the first and second windows is partly carried out when the third window arrives on the first table (B), and for part during a movement (B-B ') of flattening of this third glass.  5. Sequence according to any one of the preceding claims, characterized in that during operation V the second glass is laid flat.