DE1915805C - Machine for making mattresses - Google Patents

Description

characterized in that the lower KetiL grate (4) ",. , .. ..

by means of hydraulic or pneumatic Zylin-3o Patent 2 639 07.,), in which the Matra ze au: the piston arrangements (U) eeeen the upper of ^its entire. Length and width in horizontal and

vertical direction is compressed to

the piston assemblies (12) can be moved against the upper chain grate (3).

4. Machine according to one of claims 1 to 3, characterized in that in the area the run-out ends (13) of the chain grids (3, 4). preferably above the Celtic gratings, at least a photoelectric light barrier (14) arranged and with the drive for the transport chains (15) is coupled.

with one then to be pushed into the filling opening of the cover. In this known construction are however, no chain grids, but vertically adjustable conveyor belts implemented, which are upstream of two mounted rollers that can be rotated about vertical axes. Here is the distance chosen between the two roles narrower than the width of the conveyor belts and the mattresses, so dall these are initially compressed in the horizontal direction when entering between the conveyor belts will. This is followed by vertical compression. The purely vertical compression should make the horizontal one Pressure can be maintained during the further transport of the mattress. In this embodiment brings on the one hand the introduction of the mattress into the machine with it difficulties because the mattress immediately in the course of the run-in, first in a horizontal and then in a vertical position Direction squeezed must graze. This can lead to a backlog. On the other hand is from Disadvantage that the horizontal pressure can only be maintained by the vertical pressure

The main patent deals
Machine for making mattresses, upholstered pillows
or the like, especially foam mattresses,
with an upper and a lower chain grate,
of which at least one grate Celts for compressing the mattress in the vertical direction so traversable ₅₅ ',!, and that finally the entire length · bar, wherein the upper and lower chain grate above the mattress. Here it is to be feared that the entire length of the mattress is parallel to one another
arranged and the grate bars of both KeUenioste in
In the course of or after the vertical movement with the narrowing of the spaces between the grate bars relative to one another 60
are adjustable.

In contrast, a machine is for filling
and areas of mattress / cn or the like. Known at

the compression of the filling material by .. _o

an upper and a lower chain grate is possible because air does not come out of the pore-ordered transport chains, whereby both of the foam plastic core can escape.
Chain grids in the same or approximately the same The disadvantages described above are in the

Angle inclined to the horizontal, so not parallel machine for covering \ on mattresses ιητ.Ίι dem

in the edge areas the mattress is still in the train of the Preßvenganges tried to resume their original width, especially in the area of minimize the height of the mattress. A particular disadvantage, however, is the fact that a sufficiently strong vertical squeezing of a shaiim art tool or a painting mat by means of conveyor belts and thus not covering a cover

Main patent already avoided, but this construction can also be further developed.

The invention is therefore based on the object of continuing to develop the machine according to the main patent in such a way that that enables a machine and essentially automatic sequence of the work process will. - This object is achieved by the invention in a machine for covering mattresses, in particular. Foam plastic mattresses of the type described above according to the main patent in that that the grate bars of the upper and lower chain grate are arranged transversely to the transport direction Traverses out and connected to each other by means of scissor linkage and / or spacer springs as well are connected to pressure cylinders. - This dimensional frame of the invention have the consequence that the Actuating cylinder can be controlled automatically, in addition, the grate bar gaps Progressively narrow or widen evenly. In principle, both the upper u as well as the lower chain grate with each only one printing cylinder can be worked. It is possible to use the printing cylinder directly to be connected to the grate bars or the external grate bars. According to another embodiment However, the invention provides that the grate bars of each chain grate with the interposition of guide frame and rack and pinion drives are connected to the printing cylinder. As a printing cylinder compressed air cylinders are preferably used. The invention also recommends that the lower chain grate by means of hydraulic or pneumatic cylinder-piston arrangements against the upper chain grate is movable. This construction is particularly suitable when using compressed air cylinders, because the lower chain grate is moved back into its starting position after the pressing process has taken place be carried out by the mere influence of gravity with simultaneous venting of the compressed air cylinder can, so minimal power and performance required to operate the cylinder-piston arrangements is required. The machine according to the invention is also used to automate the operation the measure that in the area of the. at least one light barrier is arranged and this light barrier with the drive for the transport chains is coupled. This measure has the consequence that the mattress entering the machine is automatically transported until the end of the chain grids is reached, then via the light barrier the drive for the Trunsportkctten is switched off and the actual Pn'ß process take place can. In any case, in this way there is always a perfect arrangement or position of the mattress guaranteed between the two chain grids

The advantages achieved by the invention are essentially to be seen in the fact that a machine for covering mattresses, especially foam plastic mattresses, realized ^ rd, the neDcn the advantages of the construction according to the main patent has the particular advantage that pure machine and largely automated processing of the various work processes is possible. Time-consuming, labor-intensive manual labor is thus eliminated. In addition come structurally simple structure and functional reliability

In the following, the invention is illustrated by means of various exemplary embodiments Drawing explained in more detail; it shows

1 shows a machine according to the invention for covering of mattresses in front view,

F i g. 2 the item according to F1 g. 1 in side view, ,. ",. ,,

3 shows the object according to FIG. 1 in a top view

and ", r-,

4 shows another embodiment of the object according to FIG. 1 in plan view, all figures in a schunatic representation.

In the figures, a machine 1 for covering mattresses 2, pillow cushions or the like, in particular Foam plastic mattresses, shown with an upper and a lower chain grate 3, 4, of which at least one chain grate 4 for compressing the mattress 2 vertically over its entire length Direction is defensible. The upper and lower chain grids 3, 4 are arranged parallel to one another and the grate bars 5 of both chain grids with narrowing of the grate bar spaces 6 against each other adjustable. The grate bars 5 of each chain grate are on traverses arranged transversely to the transport direction 7 out and connected to one another by means of scissor linkage 8 and / or spacer springs as well connected to pressure cylinder 9. The pressure cylinders 9 can be directly attached to the outer ones Be connected to grate bars. But there is also the possibility that the grate bars 5 of each chain grate 3. 4 with the interposition of guide frame 10 and rack and pinion drives 11 to the Pressure cylinder 9 are connected, as in F 1 g. 4 is shown. The lower chain grate 4 is by means of hydraulic or pneumatic cylinder-piston assemblies 12 can be moved against the upper chain grate. In the area of the outlet ends 13 of the chain grids 3, 4, preferably above the chain grids, there is at least a photoelectric light barrier 14 is arranged and coupled to the drive for the transport chains 15.

1 sheet of drawings

Claims (3)

Patent claims: 1. Machine for covering mattresses, upholstered cushions or the like, in particular foam plastic mattresses, with an upper and a lower chain frame, of which at least one chain frame is used to compress the mattress can be moved in the vertical direction, the are arranged and the upper chain grate with the upper one of the transport chains carrying the filling material in the cover is height-adjustable (German Patent specification 1 001 584). The transport chains upstream of the chain grids can be displaced transversely to their running direction. The distance between the transport chains is determined by a scissor linkage kept the same. This known construction is disadvantageous in several respects. So there is a- 111 VLI LIJVai \ -l 1X11.11 LUlIg νΐΊ mill LSUl lOt, WUUbI UWl. * -l. _ _ 1 * U The upper and lower chain slats over the entire length of the mattress are not able to be ^{pressed together parallel to each other and thus} evenly, and the slats of both chain slats are arranged in or behind because of the inclination of the chain slats the vertical movement under comparison a continuous one. but progressive narrowing of the grate bar spaces against each other progressive pressure is realized. Other adjustable, according to the main ^ atent 1485 527, 15 on the other hand there is no possibility of the vertical characterized in that the grate direction compressed mattress also in nori- zusammenzudrucken zontal direction, namely, to ^an extent, soft is adapted to insert DJE mattress in a reference envelope, the fill opening is less than the width of the Bezugshüile or the mattress lsi straight reference cases with shorter filling opening s _ln d but desirable for production reasons, because they on the one hand allow simple pre-sewing in a single operation, on the other hand, after the mattress has been filled, only a single longitudinal seam needs to be closed. z. B. by means of a sewn-in zipper. - There is also a machine for covering painting pads made of foam plastic known (USA - Rods (5) of the upper and lower chain grate (3, 4) are guided on cross members (7) arranged transversely to the transport direction and connected to one another by means of scissor rods (8) and / or spacer springs and connected to pressure cylinders (9). 2. Machine according to claim 1, characterized in that the grate bars (5) of each chain grate (3, 4) with the interposition of guide frame (10) and rack and pinion drives (II) are connected to the pressure cylinder (9). 3. Machine according to claim 1 or 2. characterized