EP1793026B1 - Shuttle race plate for embroidery machine - Google Patents

Abstract

A shuttle guide plate (1) for embroidery machines, with a number of parallel running channels for the shuttle (10), in which at least the base of the plate (1) is lined with a detachable wearing plate (13, 13a, 13b, 15).

Description

The invention relates to a shuttle guide plate for embroidery machines according to the preamble of claim 1.

Such Schiffchenführungsplatten be used to form a displacement guide for the respective embroidery point associated Schiffchen. In general, the Schiffchenführungsplatte consists of a number of parallel juxtaposed running channels, wherein in each running channel, the boat is guided displaceably.

Purpose of the shuttle guide plate with the treads for there shuttle on it is to pass the boat through the formed thread loop to set the embroidery thread on the fabric.

The Gamvorrat arranged in the shuttle is led through the loop of the front thread and tied off the thus formed loop.

Such Schiffchenführungsplatten are usually made of a plastic.

After reaching a certain operating time, it has been found that the boat is subject to high friction losses on its career in the shuttle guide plate. These tracks hinder the run of the shuttle friction increasing and are exposed to high wear.

The tread is dug up deepened due to wear, resulting in inaccuracies in the transport of the boat.

With the publication GB-A-724 914 discloses a runner of loom-shaped shuttle looms having a plurality of suitable guide plates arranged side by side and spaced therebetween and embedded with their lower part in a molded or molded base; which holds the guide plates in a relatively accurate position and which are secured to the sley.
This document has the disadvantage that the guide plate is formed with the running surfaces of a material einstückigen material, which prevents subsequent replacement of the worn tread.

The invention is therefore based on the object, a shuttle guide plate of the type mentioned in such a way that at the same operating time of a shuttle in the shuttle guide plate a much higher wear resistance is given.

To achieve the object, the invention is characterized in that at least the bottom-side running surface of the shuttle guide plate is lined with a releasable wear plate.

With the given technical teaching, there is the significant advantage that now practically interchangeable treads for the shuttle guide plate are proposed, because at least the bottom tread is according to the invention lined with a wear plate, which is preferably releasably mounted on the bottom side track of the shuttle guide.

However, the invention is not limited thereto. In one embodiment of the invention, it is provided that not only the bottom-side track is lined with a wear plate, but also the lateral abutment surfaces, so that in a further development of the invention, the wear plate has an approximately U-shaped profile.

In a third embodiment, however, it may also be provided that instead of the U-profile, an L-profile is formed, in which case only a longitudinally extending web of the wear plate is present, while the opposite, parallel thereto extending web is missing.

It is important that the wear plate is replaceably connectable to the main body of the shuttle guide plate, wherein there are a variety of ways, all of which are claimed as essential to the invention.

As a general concept of the invention is that the attachment is interchangeable. For carrying out this general inventive concept, various following embodiments are disclosed.

A first embodiment relates to the fact that on the body of the shuttle guide plate in the region of the tread plug nubs are arranged, which engage releasably in associated plug holes in the wear plate. So it is a clip-on bracket.

In another embodiment, it may be provided that positive interchangeable connections are provided, for example, a dovetail guide between the respective wear plate and the main body of the shuttle guide plate. Thus, all form-locking connections are claimed, as well as locking connections, which result in a detachable connection with the aid of a locking leg.

Likewise, of course, releasable adhesive joints are claimed in which by means of an adhesive, the wear plate is releasably adhered to the tread of the shuttle guide plate. Such an adhesive is, for example, an easily detachable adhesive, as z. B. is used for paper sticking operations.

The wear plate preferably also consists of a plastic material, wherein this plastic material may be the same or different from the plastic material of the shuttle guide plate.

The wear plate can of course also consist of a plastic composite material, in particular a plastic-metal material or a plastic-plastic composite.

Likewise, it may be provided that the surface of the wear plate is still tempered or processed in a special way. In particular, friction reducing plastics, treads or coatings may be applied to the surface of the wear plate.

The wear plate can of course also be formed from a metal material, in particular a steel sheet, an aluminum alloy or another wear-resistant material.

Important in all embodiments is that now the duration of use for the shuttle guide plate is extended almost infinitely, because there is no wear on the shuttle guide plate itself more. The wear is playing only in the area of the wear plate, which is thus held easily replaceable on the shuttle guide plate.

Likewise, it is not necessary solution to line the entire length of the raceway for the shuttle with a single wear plate. It may be sufficient in some applications, divisibly form the wear plate, so that only a certain part of the wear plate is replaced, while the other part remains in its releasable attachment to the shuttle guide plate.

Likewise, it may be provided to line only a total of a certain part of the tread with the wear plate, while the remaining part of the wear plate is not lined.

In this case, the wear plate would then be recessed or recessed in the surface of the raceway introduced to the shuttle guide plate and is then replaced only in the area where it is introduced, while the surrounding parts in the shuttle guide plate are also used on tread.

The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.

In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are from the drawings and their description further features essential to the invention and advantages of the invention.

Figur 1:

schematisiert gezeichnete Darstellung einer Schiffchenführungsplatte mit andeutungsweise gezeichnetem Schiffchen ohne Einsatz der Verschleißplatten;

Figur 2:

die gleiche Anordnung wie Figur 1 mit Einsatz von Verschleißplatten;

Figur 3:

schematisiert einen Schnitt durch eine abgewandelte Ausführungsform einer Verschleißplatte;

Figur 4:

eine weitere Abwandlung des Profils einer Verschleißplatte;

Figur 5:

schematisiert einen Schnitt durch einen Längssteg mit versenkt eingebauter Verschleißplatte.

Show it:

FIG. 1:

schematized drawn representation of a Schiffchenführungsplatte with suggestively drawn boat without the use of wear plates;

FIG. 2:

the same arrangement as FIG. 1 with use of wear plates;

FIG. 3:

schematically shows a section through a modified embodiment of a wear plate;

FIG. 4:

a further modification of the profile of a wear plate;

FIG. 5:

schematized a section through a longitudinal web with recessed built wear plate.

In FIG. 1 a Schiffchenführungsplatte 1 is shown made of plastic, which is only hinted that forward a throat plate 2 is present, which usually consists of a metal plate.

Behind the throat plate 2, an additional intermediate plate 9 can be provided, which also consists of plastic and possibly materialeinstückig is connected to the plastic of the shuttle guide plate 1.

This intermediate plate 9 then also forms part of the running surface for the shuttle 10.

There are a total of four boat guides 3 drawn parallel to each other lying side by side, the shuttle 10 is exemplarily driven in the direction of arrow 11 on the left outer race 7 of the shuttle guide 3 slidably.

This track 7 is formed in the region of a longitudinal web 4, and the lateral boundary of this longitudinal web is formed by respective lateral guide ribs 8.

It is thus an approximately u- or channel-shaped track 7 for the shuttle 10 shown.

The inner raceway, which is parallel to the guide rib 8, may be formed by surfaces of the intermediate plate 9.

All longitudinal webs 4 are connected to each other in the region of a lower transverse web 5 and held in a common holding block 6.

It is hereby preferred if this entire arrangement of the shuttle guide plate 1 material einstückig of a single plastic material, for. As a polyamide exists.

As stated at the beginning, the raceway 7 of the shuttle guide 3 experiences heavy wear, in that the shuttle 10 is driven in an oscillating manner in the direction of arrow 11 and in the opposite direction to this on the track 7 so as to be displaceable.

This is where the invention succeeds FIG. 2 to that in the first embodiment FIG. 2 represents that now the raceway 7 is lined with a wear plate 13. The wear plate 13 is in this case formed as a rectangular plastic plug body, which preferably still has a break line 18 in its central region.

This plastic body has plug holes 14, which can be plugged onto associated plug-in nubs 12, which are material integral with the material of the raceway 7 of the shuttle guide 3.

The wear plate 13 is thus simply plugged as a flat, rectangular part of the nubs 12 and is held by it.

If it turns out that the upper portion of the wear plate 13 is subjected to higher wear than the lower portion, the wear plate 13 can be broken off and only the upper end beyond the break line 18 replaced while the lower portion of the wear plate 13 at its mounting location remains on the track 7.

The FIGS. 3 to 5 disclose further embodiments, where it can be seen that the wear plate 13a may also be formed as a u-profiled body with lateral webs 17.

If the one boundary of the tread is formed by the intermediate plate 9, according to FIG. 4 the wear plate 13b also have only a single lateral web 17, because the other boundary is formed by the intermediate plate 9.

Likewise is according to FIG. 5 Installation of a wear plate 15 in a recessed receptacle in the region of the shuttle guide 3 possible, with only small parts of the surface of the wear plate 15 protrude beyond the raceway 7.

It is important in all embodiments, that now the wear surface 16 of the respective wear plate 13, 13a, 13b geometrically at the exact same location as the previous track 7, so as to allow an undisturbed Schiffchenlauf in the shuttle guide 3.

drawing Legend

1

Schiffchenführungsplatte

2

needle plate

3

shuttle guide

4

longitudinal web

5

crosspiece

6

holding block

7

career

8th

guide rib

9

intermediate plate

10

shuttle

11

arrow

12

Stecknoppe

13

Wear plate a, b

14

plug hole

15

wear plate

16

wearing surface

17

Stege

18

breakline

Claims (14)

1. Shuttle guide plate (1) for embroidery machines with a number of running channels arranged next to one another in parallel, which are configured to receive the shuttles (10), the shuttle (10) being displaceably guided in each running channel, characterised in that at least the base-side running surface of the shuttle guide plate (1) is lined with a releasable wear plate (13, 13a, 13b, 15).
2. Shuttle guide plate for embroidery machines according to claim 1, characterised in that the running path (7) of the shuttle guide plate (1) is configured in the region of a longitudinal web (4), the longitudinal web (4) having laterally arranged guide ribs (8) for lateral limitation and the inner running path (7) parallel to the guide rib (8) being formed by means of an intermediate plate (9), which is connected integrally in terms of material to a needle plate (2) arranged on the shuttle guide plate.
3. Shuttle guide plate for embroidery machines according to claim 1 and 2, characterised in that the longitudinal webs (4) are connected to one another in the region of a lower transverse web (5) and are held in a common holding block (6).
4. Shuttle guide plate for embroidery machines according to claims 1 to 3, characterised in that the wear plate (13, 13a, 13b, 15) is preferably releasably attached to associated plugging knobs (12) and has a breaking line (18) in the central region in order to break off the wear plate (13, 13a, 13b, 15) on this line.
5. Shuttle guide plate for embroidery machines according to claims 1 to 4, characterised in that the lateral stop faces of the running path (7) are configured with an approximately U-shaped wear plate (13a), which has two webs (17) running in the longitudinal direction.
6. Shuttle guide plate for embroidery machines according to claims 1 to 5, characterised in that the lateral stop faces of the running path (7) are configured with an approximately L-shaped wear plate (13b), which only has one web (17) running in the longitudinal direction.
7. Shuttle guide plate for embroidery machines according to claims 1 to 6, characterised in that the plugging knobs (12), which releasably engage in associated plugging bores (14) in the wear plate (13, 13a, 13b, 15) and form a plug-on holder, are arranged on the body of the shuttle guide plate (1) in the region of the running surface.
8. Shuttle guide plate for embroidery machines according to claims 1 to 7, characterised in that the connection between the shuttle guide plate (1) and the wear plate (13, 13a, 13b, 15) is configured as a positive, exchangeable connection or latching connection, the latching connection forming a releasable connection by means of a latching leg.
9. Shuttle guide plate for embroidery machines according to claims 1 to 8, characterised in that the connection between the shuttle guide plate (1) and the wear plate (13, 13a, 13b, 15) is configured as a releasable adhesive connection.
10. Shuttle guide plate for embroidery machines according to claims 1 to 9, characterised in that the wear plate (13, 13a, 13b, 15) preferably has a plastics material and/or plastics composite material.
11. Shuttle guide plate for embroidery machines according to claims 1 to 10, characterised in that the surface of the wear plate (13, 13a, 13b, 15) has a coated and/or machined surface, the surface of the wear plate, in particular, having friction-reducing plastics materials, running surfaces or coatings or having a metal material, an alloyed aluminium material or other wear-resistant material.
12. Shuttle guide plate for embroidery machines according to claims 1 to 11, characterised in that the entire running path (7) of the shuttle guide plate has at least one exchangeable wear plate (13, 13a, 13b, 15) which can be divided depending on the application.
13. Shuttle guide plate for embroidery machines according to claims 1 to 12, characterised in that only a part of the running path (7) is configured with a wear plate (13, 13a, 13b, 15) which is introduced in a countersunk or recessed manner and is exchangeable.
14. Shuttle guide plate for embroidery machines according to claims 1 to 13, characterised in that the shuttle guide plate (1) is preferably integral in terms of material.

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