EP0599053B1 - Frame for embroidering machine - Google Patents

Abstract

The subject of the present invention is a large embroidering machine having a multiplicity of embroidering stations which are fastened in a horizontal arrangement to the machine frame. So that, in large embroidering machines of this type, there is no need for a foundation involving a high outlay and the machine can, for a comparable production capacity, be produced with a lower overall height, the embroidering machine according to the invention has a machine frame with an essentially U-shaped cross-section open upwards, at least two essentially vertical U-ribs (16) open upwards being connected to one another by means of longitudinal members (3, 3a) and forming in the longitudinal direction of the machine a channel (14) which is open at least on the end faces (15) and in which cloth shafts of a cloth tenter (10) are arranged movably.

Description

The present invention relates to an embroidery machine with a plurality of embroidery sites, in particular a machine frame, on which the Embroidery points in a horizontal arrangement in one or more rows are arranged one above the other.

Such large embroidery machines of 10m, 15m to 21m embroidery length have been used since long two-story built, i.e. there will be two horizontal rows of Embroidery points and, accordingly, two fabric coupons to be embroidered arranged one above the other. This will double the number of stitches per minute. or reached per hour compared to a one-story machine. Since the Embroidery height (the height of the fabric to be embroidered in one setup) for reasons of performance increase of originally less than 40 cm The large embroidery machines were expanded to 120 cm and more thereby always higher. So as not to require extreme building heights and one To allow reasonable operation of the two floors Machines designed so that in the central axis of the machine Longitudinal trench is provided in the foundation, in which the lower part of the Stenter can be lowered when embroidering.

This arrangement means that the front and rear of the machine are separated by this trench up to 1m deep. The stability of the The machine cannot be secured by the frame, but rather must be taken over by the foundation. In difficult Soil conditions require great effort to be sufficiently rigid Foundations. Insufficient foundation rigidity can lead to deformation of the Operate a machine that makes further operation impossible.

This conventional structure also forces the machines to To be installed on site, since a large embroidery machine is only together forms a stable unit with the foundation. The pre-assembly at Manufacturer remains on smaller, closed assemblies limited. The final assembly at the customer extends over 6 up to 12 weeks.

Every change of location of such large embroidery machines is a expensive company. Not only does it have to be disassembled, but prepared from the foundations and on the new Installation site can be poured into the new foundation.

This arrangement with deep trench for the stenter leads to do this with the front and rear of the machine at both ends heavy side shields to connect, but this will both Sides built up in such a way that no lateral retraction and extension of Fabric panels are rationally possible.

This two-story arrangement is also the cause of essentials Operating difficulties. To operate the upper floor must have catwalks with handrails and ladders or lifting platforms appropriate safeguards are attached. The time and Personnel expenses are considerable.

The patent DE-C-230 960 describes an arrangement of with their long sides facing each other, standing side by side Embroidery machines, with the front bulkhead halves of one Machine only with the rear transverse wall halves of the neighboring one Machine are connected to a common rigid whole. The transverse wall halves of a machine are not together connected. The construction described has the disadvantage that the freedom of movement of the operator between the individual Machines is restricted.

US-A-2,649,065 relates to a horizontal embroidery machine and vertically movable frame, the frame of the Machine consists of four vertical posts, each over longitudinal connectors and cross connectors attached to the top are interconnected.

GB-A-25,531 relates to an embroidery machine with a variety of upright frame elements, which are relatively small Distance next to each other, across the longitudinal direction of the machine are arranged. The frame elements are above one another Longitudinal connector connected, in one embodiment the Top of the frame is covered by a side member. In another embodiment, the frame elements are on the top of each connected by cross connector. At hers The front and back are each made by a frame End wall completed. The machine frame is neither on the front pages are still completely open at the top, but through an end wall or upper longitudinal or cross member closed.

The invention has the task of a large embroidery machine type mentioned so that at about comparable performance a lower height is achieved and that an elaborate foundation can be dispensed with.

To achieve the object, the invention is by characterized technical teaching of claim 1.

An essential feature of the invention is that an im essentially open U-shaped frame is provided. So that according to the invention single-storey construction proposed that can be strung together and thereby avoiding the large construction heights, their disadvantages described in the introduction to the description above were.

With the use of a one-story, modular design, the achieved another significant advantage that now equally high performances, as with a two-story structure, because now the frames according to the invention can be operated at higher speeds can, what with the two-story structure according to the prior art not was possible.

Therefore, with a lower overall height and with the advantages of one modular structure and the elimination of an elaborate foundation the embroidery machine according to the invention has approximately the same performance achieved as with conventional embroidery machines with a two-story structure.

Through one-story construction or low embroidery heights with automatic The trench for the Tenter frames are not required. This enables an inherently stable construction rigidly connected to each other on the front and rear of the machine are. Such a machine can be used on any stable, level floor set up and easily relocated again. The price for there is no need for complex, special foundations. Any effects of Floor deformations can easily be made by re-adjusting machine feet be resolved.

The independence from the foundation now enables a large extent Pre-assembly of entire machine modules, quickly on the spot can be put together and not in a complicated foundation have to be poured in. Moving such machines to new ones Locations require only a fraction of previous expenses.

The U-channel of the machine frame, which is open on both sides, now enables Tenter frame constructions in which the fabric to be embroidered on a Is fed into the machine and discharged on the other.

By adding the open U-section to one high, narrow rectangle becomes special with little material rigid frame for guiding and moving the tenter frame.

Even with a one-story design, such an embroidery machine is used Ground level installation still relatively high (2m). For the transport of Completely pre-assembled modules would complicate and increase Bring costs. By concentrating all embroidery tools and their Drive in the lower part of the frame according to the invention can do that Upper part of the machine except for the guides for the stenter be reduced. The upper part can be made using technically simple means be releasably connected to the lower part. So bottom part modules with all embroidery points requiring high accuracy and their Drives completely pre-assembled and shipped. In place are only the vertical supports with the guides, or that Top part of the rectangular frame with the guides, and the parts of the stenter. Such a construction enables also assemble the largest embroidery machine in less than a week and put into operation.

The subject matter of the present invention does not arise only from the subject of the individual claims, but also from the combination of the individual claims.

All disclosed in the documentation - including the summary Information and features, especially those in the drawings Spatial training shown are essential to the invention claimed, insofar as they are individually or in combination with the stand of technology are new.

In the following the invention is based on only one Execution path illustrating drawings explained in more detail. Go here from the drawings and their description further essential to the invention Features and advantages of the invention.

Figur 1:

die perspektivische Ansicht des Maschinengestells, wobei ein Vormontage-Modul gezeigt ist;

Figur 2:

Stirnansicht eines Vormontage-Moduls, welches durch einen oberen U-Spant zu einem geschlossenen Rahmen ergänzt ist.

Show it:

Figure 1:

the perspective view of the machine frame, wherein a pre-assembly module is shown;

Figure 2:

Front view of a pre-assembly module, which is supplemented by an upper U-frame to form a closed frame.

According to FIG. 1, the pre-assembly module consists of a lower support 1, which, as a paired carrier, holds two side stands 2 between them, which side stand in connection with the lower straps 1 one after Form U-frame 16 open at the top. The lower support 1 can also be made in one piece.

There are several such U-frames 16 side by side, the are connected to one another by horizontally extending longitudinal beams 3. The longitudinal members 3 are here with their end faces on the assigned Parts 1,2 attached, e.g. B. by screwing.

The upper side members are called cheeks 3a and on these cheeks the embroidery tools, such as. B. boat, needle and drill arranged.
The entire pre-assembly module now shows a longitudinal channel 14, in the area (see FIG. 2) of which the shuttle, needle and drill are arranged.

It is now the first time with the frame that is open at the top and front possible to embroider the fabric through the free ends of the Channel 14 from one side (end face 15) into the machine insert and remove on the other (end face 15).

On the upper cheek 3a vertical supports 4 are attached, which Form separation points 6 with the cheeks 3a. These vertical supports 4 form the top of the machine and have guides for the Stenter on.

On the face side there are further connections 5 for further assembly modules provided, with the cheek 3a a single element of it subsequent assembly module is indicated.

The lower beams 1 of the preassembly module are on foundation plates 9 mounted as height-adjustable vibration damping elements can be trained.

Figure 2 shows the extended by an upper, U-shaped frame Pre-assembly module of Figure 1 in front view.

The same reference numerals are used for the same parts used.

On the cheeks 3a, which extend in the longitudinal direction, there is now an after second U-shaped frame closed at the top, the Separation points 6 are used for fastening. The top, U-shaped Frame consists of the vertical supports 4 and the parallel to them extending side supports 7, which in their upper area by upper Cross connections 8 are interconnected.

This gives the frame an optimal rigidity so that it does not anchoring in a foundation is more important. According to the invention the embroidery machine frame consists of an open one lower, U-shaped frame and an upper, U-shaped frame, with the two U-legs facing each other are connected to each other at the end.

So it is a closed, rectangular, relative narrow frame with a central, continuous channel 14, in the two material waves of the fabric tenter 10 lying one above the other in mutual distance are arranged parallel to each other.

The individual tools such as shuttle 11, needle 12 and drill 13 are as described above on the longitudinal direction extending cheeks 3a arranged.

The invention therefore relates to two different embodiments, namely in a first embodiment, the embroidery machine can only consist of one U-shaped, upward open pre-assembly module, which frame already the required rigidity and Has vibration stability.

In a second embodiment, which is also from the The inventive idea is included, the upwardly open, U-shaped Frame by a second, U-shaped frame open at the bottom a closed rectangular frame, which makes this frame even more becomes stiffer and more stable.

In the simplest embodiment, the invention consists of one Open at the top, U-shaped frame and in a further training this is U-shaped frame open to the top by a second U-shaped frame Open frame added below. Due to the described modular structure there is now for the first time the possibility that one in the longitudinal direction can continue to connect pre-modules according to Figure 1 because the intended Separation points 5 are suitable for connection.

DRAWING LEGEND

1

lower beam

2nd

Side stand

3rd

Side member

3a

Cheeks

4th

vertical supports

5

Connections for further assembly modules

6

Separation point of the vertical supports

7

Side support

8th

upper cross connection

9

Foundation plates

10th

Fabric waves of the tenter

11

Boat

12th

needle

13

drill

14

channel

15

End faces

16

U-shaped frames, open at the top

17th

U-shaped frames, open at the bottom

Claims (6)

1. Embroidering machine with a horizontal arrangement of a multiplicity of embroidery points which are arranged adjacently with equal spacing, each having one needle and the associated embroidering tools, such as for example drill, thread guide, cloth presser, shuttle, and further loop-forming needles which are arranged partly on the front and the back of a cloth-tensioning frame located opposite one another in one or more rows on a machine frame, characterized in that the machine frame has an essentially U-shaped, upwardly open cross-section, at least two essentially vertical, upwardly open U-spars (16) being connected to one another by longitudinal members (3, 3a) and forming, in the longitudinal direction of the machine, a channel (14) which is open at the end faces (15) and at the top and in which the cloth-tensioning frame (10) is movably arranged, vertical supports (4) being fastened to the back of the machine, on the longitudinal members (3a) which connect the U-spars (16), in order to guide and move the tensioning frame.
2. Embroidering machine according to Claim 1, characterized in that the U-shaped spars (16) are each made up of two side posts (2) and one or two bottom beams (1), the side posts (2) being fastened with horizontal spacing from one another between the bottom beams (1) or on the bottom beam.
3. Embroidering machine according to Claim 1, characterized in that downwardly open U-shaped spars (17) are provided, arranged on the frame in such a way that, together with the upwardly open spars (16), they form frames of rectangular cross-section, which are connected by longitudinal members and, in the longitudinal direction of the machine, form a channel (14) which is open at the end faces (15) and in which the cloth frame is movably arranged.
4. Embroidering machine according to Claim 1, characterized in that at least two of the U-shaped spars (16) or rectangular spars (16, 17) are connected by the longitudinal members (3, 3a) to form an essentially preassembled frame unit, onto which further units can be mounted in a modular manner.
5. Embroidering machine according to Claim 1, characterized in that foundation plates (9) are provided on the underside of the upwardly open spars (16), which foundation plates are configured as height-adjustable vibration damping elements.
6. Embroidering machine according to Claim 1, characterized in that the upper, downwardly open U-spars (17) are releasably connected to the upwardly open, lower U-spars (16).

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