DE102015008625A1 - Shuttle embroidery machine with central rear-wheel adjustment - Google Patents

Abstract

Shuttle embroidery machine with a fabric web (4) spanned between upper and lower fabric shaft (5, 6), on one side of which the needle side (3) with a plurality of individual needles and on the opposite side the shuttle webs (10) for receiving the there displaceably driven Shuttles is arranged, wherein the Schiffchenbahnen (10) are connected to at least one aligned in the X direction rear carriage (7), which is connected via aligned in the Z direction Hinterwagenanbindungen (8) in the Z direction adjustable with a machine fixed Schiffchenwange (17) , wherein the setting of the at least one rear carriage (7) in the Z direction with at least one central actuator (14, 15, 16, 25, 28, 36, 41) takes place.

Description

The invention relates to a shuttle embroidery machine with central rear-wheel adjustment according to the preamble of claim 1.

Problem definition (problem to be solved)

With shuttle embroidery machines, the error rate of loosened loops can be influenced by fine-tuning the position of the rear carriage. This has the consequence that the position of the loop is better matched to the shuttle tip. This procedure is known when embroidering cotton, in which the position of the rear carriage must be adjusted to a greater extent.

Prior art (prior art)

Current embroidery machines have the opportunity to move the shuttle trays and thus the entire rear carriage on which they are attached. The fine adjustment takes place by means of a manual adjustment of each connection of the rear carriage to the machine frame. Since the measure to be set is usually not exactly known in advance, the process must be repeated several times in order to achieve the desired result. This iterative process is time consuming and error prone.

From the DE 23157 A1 is a shuttle embroidery machine of the type mentioned become known in which, however, the rear carriage is not adjustable.

The invention is therefore the object of developing a shuttle embroidery machine so that a central adjustment of the rear carriage in the Z direction is possible.

To solve the problem, the invention is characterized by the technical teaching of claim 1.

The present invention effects the almost simultaneous fine adjustment of the carriage width over the entire machine length. The width of the carriage is the dimension between the fully extended needle carrier and the front plane of the throat plate in the area of the stitch hole. It is thus an indirect measure of the position of looping that is commonly used to control adjustment.

The fast fine adjustment leads to minimal interruptions in operation. This setting can be made manually or by means of one or more actuators. It is thus possible to reset the nominal dimension, which has already been determined from experience.

In the case of a powered solution, it is possible to store this setpoint in a controller to retrieve it later to set up the machine.

• 1. Zentraler Stellantrieb (manuell oder mittels einem oder mehreren Aktuatoren), wobei die Fein-Einstellung in Nadelrichtung (Z-Achse) aller Hinterwagenanbindungen nahezu zeitgleich erfolgt.
• 2. Ein Aktuator generiert eine lineare oder rotative Bewegung. Diese wird mittels eines Gestänges auf die einzelnen Hinterwagenanbindungen geleitet. Dort wird diese lineare oder rotative Bewegung jeweils in eine lineare Bewegung in Nadelrichtung (Z-Achse) umgesetzt.
• 3. Die einzelnen Hinterwagenanbindungen werden durch einen individuellen Aktuator nahezu zeitgleich in Nadelrichtung verstellt.
• 4. Ein Aktuator generiert eine lineare oder rotative Bewegung. Diese wird pneumatisch oder hydraulisch an die einzelnen Hinterwagenanbindungen geleitet. Dort wird diese pneumatische oder hydraulische Bewegung in jeweils eine lineare Bewegung in Nadelrichtung (Z-Achse) umgesetzt.
• 5. Eine lineare oder rotative Bewegung wird manuell generiert. Diese wird mittels eines Gestänges, pneumatisch oder hydraulisch auf die einzelnen Hinterwagenanbindungen geleitet. Dort wird jeweils diese lineare oder rotative Bewegung in eine lineare Bewegung in Nadelrichtung (Z-Achse) umgesetzt.
• 6. Die Umsetzung der linearen oder rotativen Bewegung erfolgt in einer ersten Ausführung über eine schiefe Ebene. Dies gestattet eine genaue Positionierung in Nadelrichtung (Z-Achse).
• 7. Die Umsetzung der linearen oder rotativen Bewegung erfolgt in einer zweiten Ausführung über eine fein gestufte Treppe. Dies gestattet eine genügend genaue Positionierung in Nadelrichtung (Z-Achse).

The preferred features of the invention are listed below in the following manner:

• 1. Central actuator (manually or by means of one or more actuators), wherein the fine adjustment in the needle direction (Z-axis) of all Hinterwagenanbindungen occurs almost simultaneously.
• 2. An actuator generates a linear or rotary motion. This is directed by means of a linkage to the individual Hinterwagenanbindungen. There, this linear or rotary movement is converted into a linear movement in the needle direction (Z-axis).
• 3. The individual rear-wheel connections are adjusted by an individual actuator almost simultaneously in the needle direction.
• 4. An actuator generates a linear or rotary motion. This is routed pneumatically or hydraulically to the individual rear-wheel connections. There, this pneumatic or hydraulic movement is implemented in each case a linear movement in the needle direction (Z-axis).
• 5. A linear or rotary motion is generated manually. This is directed by means of a linkage, pneumatically or hydraulically to the individual rear-wheel connections. There, each linear or rotary movement is converted into a linear movement in the needle direction (Z-axis).
• 6. The implementation of the linear or rotary movement is carried out in a first embodiment on an inclined plane. This allows accurate positioning in the needle direction (Z-axis).
• 7. The implementation of the linear or rotary movement is carried out in a second embodiment of a finely stepped stairs. This allows a sufficiently accurate positioning in the needle direction (Z-axis).

• 1. Gleichzeitigkeit im Bereich zwischen 0 und 5 Sekunden.
• 2. Nahezu gleichzeitige Einstellung auf der gesamten Maschinenlänge.

The resulting benefits are:

• 1. Simultaneity in the range between 0 and 5 seconds.
• 2. Almost simultaneous setting on the entire machine length.

Resulting advantages over the prior art

Since the mechanism acts on all attachment points, a misalignment is thus excluded.

The Einstellmaß can be determined faster because the tedious setting reduces to a limited effort.

Feature of the invention is the central adjustment of the rear carriage over the entire length of the shuttle embroidery machine in the Z direction, which was not yet known.

So far, only one setting of the rear carriage on the connection to the machine frame was possible, with distributed over the length of the shuttle embroidery machine a number of individually adjustable Hinterwagenanbindungen was arranged, such as 16 or more.

With the present invention, therefore, a substantial simplification in the adjustment of the rear carriage is achieved by all Hinterwagenanbindungen are adjusted together via an associated actuator in the needle direction (Z direction).

In a particular embodiment of the invention, it is provided that the central adjustment of the rear carriage in the Z direction takes place at the respective rear end connections, which connect the rear carriage with the Schiffchenwange.

In a first preferred embodiment, it is provided that the setting gear for the central, common setting of the over the entire length of the embroidery machine extending rear carriage are arranged in the boat cheek itself.

In a second embodiment, which is also preferred, it is provided that the adjustment gear for the central adjustment of the over the entire length of the embroidery machine extending rear carriage are arranged in the rear-wheel connections, which are aligned with their longitudinal extent in the Z-direction, and which provide a connection between the extending in the X direction Schiffchenwange and also extending in the X direction rear wheel assembly.

The Hinterwagenanbindungen are therefore aligned with their longitudinal extent in the Z direction and each have a common actuator, so it is possible with a single actuator to adjust all Hinterwagenanbindungen parallel to each other in the Z direction, so that connected to the Hinterwagenanbindungen at the free end rear carriage in Z direction is finely adjustable.

On a machine length of for example 5 to 30 meters, the setting dimension in the Z direction amounts to ± 5 mm.

The Hinterwagenanbindungen are therefore adjustable in length. They can also be designed telescopic.

Such a small Einstellmaß can be achieved with a series of Einstellgetrieben, all based on the common idea to make a parallel adjustment of all Hinterwagenanbindungen in the Z direction so that the supported by the Hinterwagenanbindungen and oriented in the X direction rear carriage in Z Direction of the desired adjustment path without jamming, runs parallel over its entire length.

In the current state of the art, the adjustment of the rear carriage by separate independent adjustment devices, which were respectively arranged at each rear-wheel connection, which avoids the present invention.

In a preferred embodiment, the rear sidecar, which can be adjusted centrally in the Z direction, consists of a square steel profile on which the shuttle trays are fastened. The metal profile should be particularly torsion-resistant and dimensionally stable.

In a first embodiment of the invention, it is provided that a single actuator is arranged laterally on the embroidery machine, and actuated with a continuous shaft all adjustment gear on the mutually parallel and spaced Hinterwagenanbindungen.

In a second embodiment it is provided that the actuator is centrally located centrally on the machine frame of the embroidery machine. Starting from this actuator, the adjusting shafts or drive rods extend to the left and to the right and thus actuate the adjusting gears arranged in each case in the rear link connections.

In a third embodiment it can be provided that two or more actuators are present, so that each setting gear is associated with an actuator.

In principle, the central adjustment principle of the invention according to a first preferred embodiment is that a movement of a drive rod in the X direction is converted into an adjustment movement in the Z direction, which acts on the rear-wheel connections, so as to move the rear carriage in the needle direction.

In a first embodiment of the invention is provided, the transfer movement of a Moving in the X direction in the Z direction, which is done via a wedge drive.

When using such a wedge drive, it is preferred if superimposed wedge surfaces are present, so that with the actuator, the one wedge surface is moved, and the opposite wedge surface receives this sliding movement and passes in the needle direction on the rear wagon connections to the rear.

It is preferred if the wedge surfaces are designed to be self-locking in order to avoid an unwanted displacement.

Instead of smooth wedge surfaces and stepped wedge surfaces can be used, which thus allow a gradual adjustment in the Z direction, so as to achieve a fine pitch of the adjustment movement in the Z direction.

In a third embodiment, it may be provided that the transfer movement from the X direction to the Z direction by other equivalent setting gear happens, such as by eccentric Abdrückvorrichtungen, by screw spindles or by pneumatic cylinders, which also acting in parallel the transfer movement of the X direction in the Z direction.

In another embodiment of the invention, it may be provided that the setting gear are arranged directly in the rear-wheel connections, and work in the Z-direction. This can be done, for example, with a screw, whose longitudinal extent is arranged parallel to the longitudinal extent of the Hinterwagenanbindungen, and which is supported in a fixedly arranged in the Hinterwagenanbindung nut, and in the rotation of the Hinterwagenanbindungen is centrally adjusted together with the attached rear.

There are several options for the adjustment gear. The first possibility is that each screw is assigned its own actuator, and all actuators are synchronized with each other by a suitable control.

The second possibility is to provide a controller instead of a control in which the position of the rear carriage is detected by a number of distance sensors and the actual signal of each distance sensor is compared with the desired signal of the distance and the difference between the actual and the setpoint for Readjustment of each arranged at this point drive is used.

The distance sensors can detect contactless or touching the respective actual value of the position of the rear carriage at the respective measuring location.

Another embodiment may provide that the screw spindles are driven by a common mechanical drive, which is derived from a central actuator.

In this embodiment, it is important that the adjustment movement takes place directly in the Z direction, and that conversion from an actuator in the X direction in the direction of the Z direction is not required. It is therefore a direct drive that works in the Z direction.

When it comes to the mentioned direct drive, the common mechanical drive of the screw spindles can be done either by a common, all screw spindles bridging (driving) rack, a toothed belt or a similar equivalent drive means.

Incidentally, the invention is not limited to allowing the actuator to act in the X direction, and to implement this adjusting movement in the Z direction via a suitable adjusting mechanism.

In an equivalent embodiment, it may also be provided to align the actuator with its longitudinal extension in the Y direction, and to implement the positioning movement in the Y direction with a suitable conversion device in an actuating movement acting in the Z direction on the rear carriage connections.

When in the present invention description of directions in the X, Y or Z direction is mentioned, this does not exclude that corresponding actuators are also effective at (tilted) angle to the specified X, Y and Z directions, because it only matters to exert an adjusting movement in the Z direction on the rear-wheel connections, so as to adjust the rear-mounted vehicles attached to the rear-wheel connections centrally in the Z-direction.

The actuators can therefore be arranged in any desired angular position to the specified coordinates X-Y-Z.

The prerequisite is always that the adjustment direction (Z direction) is always aligned in the needle longitudinal direction.

However, if the needles are inclined and not aligned exactly in the Z direction, the rear carriage must also follow the longitudinal extent of the needles in its setting movement accordingly.

The invention is not limited to the setting gear specified here. It can also be provided so-called coupling gear, which are arranged between the machine frame and the rear carriage on the respective Hinterwagenanbindungen to allow a parallel adjustment of the rear carriage in the longitudinal direction to the needle extension.

The mechanical transmission devices specified here are therefore not limited to the specified constructions, because more transmission joints can be provided to allow a parallel central adjustment of the rear carriage, starting from a central adjusting device.

Such coupling gears are, for example, parallelogram linkage, scissors linkage or (Chebyshev or Chebyshev) Chebycheff linkage, which also solve this problem. All of these adjustment devices, which allow a parallel central adjustment of the rear carriage in the direction of the needle longitudinal axis, are included in the inventive concept.

The object 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.

Insofar as individual objects are designated as "essential to the invention," "important" or "preferred," this does not mean that these objects necessarily have to form the subject of an independent claim. This is determined solely by the current version of the independent claim.

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.

Show it:

1 : Schematically a perspective view of a shuttle embroidery machine without central rear-wheel adjustment

1A : the same view as in 1 , viewed from the opposite side only

2 : a perspective view compared to 1 shows a schematic central rear wheel adjustment

3 Fig. 1 schematically illustrates a first embodiment of a setting gear for the central parallel adjustment of the rear carriage in an exploded position

4 : the same representation as 3 but in the contracted position

5 : the same representation as 4 but in a different setting position

6 : one opposite 5 modified embodiment

7 : one opposite 6 modified embodiment

8th : one opposite the 6 and 7 modified embodiment

9 : a constructive execution of the adjustment of the rear carriage according to the 1 to 3

10 : An enlarged view of the adjuster after 9 in a first end position

11 : the same representation as 10 in a second end position

12 : a perspective view of the actuator

13 : Schematically another embodiment for a central adjustment of the rear carriage with direct drive of the rear-wheel connections via screw spindles

14 : the same representation as 13 with a rack connecting all screw spindles

15 : another embodiment for the direct drive with a common connecting the drive spindles drive belt

16 A further embodiment of an adjusting drive with rocker arms

In 1 . 1A and 2 is the principle of the embroidery machine 1 shown essentially from a fore cheek 2 exists, at whose Front side of the needle 3 is arranged in a conventional manner.

The fabric runs in front of the needle side 4 passing on top and bottom fabric waves 5 . 6 can be wound up. The fabric 4 assigned hoop is not shown in detail and is located behind the fabric 4 ,

On the opposite side, the needle side 3 , is a rear car 7 arranged on which the boat guidance 9 is arranged. This is with the rear car 7 firmly screwed together and forms a unit.

In the boat guide 9 are the shuttle trains 10 arranged as based on the later 9 will be explained.

It is important that on a boat cheek 17 parallel and spaced from each other Hinterwagenanbindungen 8th are arranged, whose longitudinal extents are aligned in the Z direction.

It is not shown that the respective Hinterwagenanbindung 8th is formed in its longitudinal extent adjustable in the Z direction. It can also be changed by the arrangement of two telescoped and telescoped parts in its longitudinal extension.

In 1 is shown only schematically that the X-direction of the longitudinal extent of Schiffchenwange 17 corresponds to the Y-direction perpendicular to the longitudinal extent of the Hinterwagenanbindungen 8th extends, and the adjustment movement of the Hinterwagenanbindungen 8th in the Z direction in the adjustment directions 12 and 13 he follows. The Z-axis is denoted by the reference numeral 11 designated.

In a preferred embodiment, it is provided that the right side of the respective rear-wheel connection 8th in its connection to the rear car 7 is formed adjustable in the Z direction.

In another embodiment of the invention, however, it may also be provided that the left connection of the rear-wheel connection 8th on the boat cheek 17 is designed adjustable.

In order to simplify the later description, however, it is provided that the right connection of the rear-wheel connection 8th on the over the entire length extending rear 7 is formed adjustable in the Z direction, in the adjustment directions 12 . 13 ,

The 1A shows the opposite perspective view of the arrangement compared to the 1 and 2 , from which further details can be taken. Here, too, it can be seen that the left connection of the rear-wheel connection 8th at the over the entire length of the embroidery machine extending rear 7 is formed in the Z-direction adjustable at the individual Hinterwagenanbindungen.

If in the following description of the left and right side of the rear-wheel connection 8th Similarly, these terms can be equivalently used so that the left side of the Hinterwagenanbindung 8th in 1A is referred to as a fabric-facing side and the right side of the rear-wheel connection is referred to as the fabric side facing away.

So if the terms "left" and "right" are used, this means in the sense of the drawing in FIG 1 and 1A the fabric facing and fabric facing away from the rear of the car 8th ,

Out 2 details of the central rear-wheel adjustment can be seen, from which it can be seen that in the space between the Schiffchenwange 17 and the parallel and at a mutual distance from the Schiffchenwange extending Hinterwagenanbindungen the adjusting device is arranged, in the illustrated embodiment of an actuator 15 consisting of a jointly driven drive rod 14 the adjusting gears 16 in the rear wing connections 8th on the fabric facing side sets.

The 3 to 5 show a first embodiment of a setting gear, wherein derived from the actuator 15 one in the X direction (arrow direction 33 ) movable drive rod 14 is driven, the associated connections 21 . 22 with a wedge cart 19 connected is.

The wedge car 19 is about roles 20 on the assigned boat cheek 17 supported.

The drawing after the 3 to 5 also shows that a plurality of such wedge cars 19 over the assigned drive rods 14 and the intervening connections 21 . 22 connected in parallel with each other, and by the common actuator 15 over the drive rod 14 in the direction of the arrows 33 are charged.

In every wagon 19 is a central recess 23 arranged through which the free end of a shaft 24 engages, this wave - in the exploded view after 3 - with a wedge element 25 connected is.

The lower surface of the wedge element 25 has a first wedge surface 30 on, the same inclined wedge surface 31 on the top of the wedge 19 assigned.

Furthermore, it is off 3 to deduce that the respective wedge angle 32 is chosen so that it is when the wedge surfaces 30 . 31 to a self-locking between the two superimposed wedge elements 19 . 25 comes.

The wave 24 is a force element 28 assigned, which may be formed in a variety of configurations. In the embodiment shown, this force element 28 as a cylinder 27 formed, in the interior of which a piston 34 slidably driven, under the action of compressed air or hydraulic fluid.

The piston 34 is with a piston rod 26 connected, in turn, with the wedge element 25 , the wave 24 and ultimately with the rear end 7 connected is.

In the contracted position after 4 thus sets the piston rod 26 non-positively and positively on the wedge element 25 on, which thus with its wedge surface 30 on the opposite wedge surface 31 is pressed in the sense of self-locking, so that the two wedge elements result in a highly resilient connection.

In this retracted position, the piston has 34 an adjustment distance 35 ' that is in transition to the other adjustment distance 35 of the 5 changes according to the piston displacement.

It is still added that the respective wedge car 19 on a tread 18 that with the boat cheek 17 is connected, unrolls, and using roles 20 is supported. However, this is only to be understood schematically. It can also be a plain bearing. Instead of the drawn rollers and balls or other rolling elements can be used.

The 5 shows the Einstellmaß, from which it can be seen that the wedge carriage 19 to the left in the direction of the arrow 33 was shifted, whereby the recess 23 moves accordingly to the right side.

The rear only schematically illustrated 7 is therefore the Einstellmaß, namely the difference between 35 ' and 35 in Z-direction, sensitively adjusted.

The use of wedge adjustment has the advantage that a particularly sensitive adjustment in the Z direction, as in the arrow direction 33 over a relatively large adjustment a very small adjustment movement in the Z direction by the distance 35 - 35 ' can be done.

The 6 shows in deviation to the embodiment of the 3 to 5 that instead of smooth wedge surfaces 30 . 31 also stepped wedge surfaces 30a . 31a can be provided, whereby a setting in the Z direction in the grid of the stepped wedge surfaces 30a . 31a can be done.

The 7 shows as another embodiment, that also a sensitive adjustment in the Z direction by adjusting the shaft 24 can be done by that via a rotary drive movement of the actuator 15 in the direction of the arrow 40 the drive rod 14 now rotatably driven, and via associated connections 21 . 22 and associated pivot bearing now rotatably with two parallel adjustment eccentrics 36 is connected, the outer circumference 38 at the bottom of now as a stop element 25a supported element is supported.

In this way, also a rotational movement of the actuator 15 in a sensitive adjustment movement in the Z direction over the rolling of the adjustment eccentric 36 on the stop element 25a accomplished.

The 8th shows one opposite 7 modified embodiment in which it can be seen that via a rotationally driven actuator 15 a drive rod 14 in the direction of the arrow 40 and in the opposite direction takes place, and the drive rod 14 non-rotatable with a screw spindle 41 is connected to a non-illustrated nut thread in the interior of the wagon 19 supported. In this way, also the wedge carriage 19 in the X direction free upon rotation of the screw spindle 41 be moved. If now the two wedge elements 25 and 19 lie on one another, it comes to a sensitive adjustment of the shaft 24 with the rear wheel attached 7 in the Z direction.

The 9 to 12 show a first preferred structural embodiment of the adjustment principle according to the 2 ,

In perspective view is on the side facing away from the needle a rear carriage 7 shown with the boat guide 9 connected is.

With the rear car 7 is a rear-axle connection 8th connected, in the embodiment shown as a transverse flange 42 is formed, which is profiled approximately U-shaped.

The base leg of this U-profile forms towards an opposite housing 44 the adjustment device, an adjustment gap over which the adjustment distance 35 . 35 ' is adjustable.

At a distance from the base leg of the transverse flange 42 is opposite the housing 44 arranged in which a force element 28 is arranged in the form of an actuating cylinder whose piston rod 26 on the front (upper) wedge element 25 supported.

The wedge element 25 lies as shown in 4 with its wedge surface on the opposite wedge surface of the oppositely arranged wedge carriage 19 on, wherein the mutual displacement of these two wedge surfaces is optically identified by a scale.

Furthermore, it is shown that the wedge element 25 has a longitudinal guide by an anti-rotation 45 laterally on the wedge element 25 is arranged through a longitudinal slot 47 engages, so the wedge element 25 in this longitudinal slot 47 with its anti-twist device 45 is guided displaceable parallel.

It is still stated that the cross flange 42 on a linear slide 43 resting, which in turn on a machine-fixed slide carrier 51 slidably arranged.

In the embodiments of the 9 and 10 is the drive rod 14 fixed to the connecting flange 48 connected, in turn, with the wagon 19 is firmly connected. The connection between the wagon 19 and the connecting flange 48 is with the screw connection 49 in 11 shown.

It is further shown that on the boat cheek 17 each at a mutual distance connecting plates 50 are attached to the carriage carrier 51 are connected.

Thus, lets out 10 and 11 recognize that the front free end of the shaft 24 an adjustment movement 52 in the Z-direction, and the shaft immediately - not shown in the drawing - with the rear carriage 7 connected is.

By the parallel drive of all adjustment gears, as in the 9 to 11 are shown, thus all adjustment can be adjusted together, and thus there is a common synchronous adjustment of all arranged in the respective adjustment shafts 24 , all of which are a common, precisely calibrated, Z-directional adjustment movement 52 To run.

This is completely new and was not yet known according to the prior art.

The 12 shows an example of an actuator 15 for the displacement of the drive rod 14 , In the embodiment shown is a housing 53 firmly on the boat cheek 17 attached and has a rear fixed bearing 56 , which is aligned in the Y direction.

The out of the actuator housing 53 outstanding drive shaft goes through another pivot bearing 55 , which is also aligned in the Y direction, on the drive shaft 54 using a clamp connector 57 with the drive rod 14 is connected in the X direction adjustable.

The camp 56 is with the retaining plate 58 connected and arranged on this, and the retaining plate 58 is on the boat cheek 17 attached.

The 13 shows the direct drive of the rear truck connections 8th using screw spindles. Here is the actuator 15 rotatable and stationary with a pinion 61 connected to a drive wheel 60 engages and this rotates drives. The drive wheel 60 is non-rotatable with a screw spindle 41 connected to the external thread in the internal thread of a threaded nut 62 is absorbed and free around the shaft 24 can turn.

The threaded nut 62 is secured against rotation, but designed to be displaceable in the axial direction. This is done for example by a longitudinal guide 64 on the machine housing 17 so that the threaded nut 62 is axially displaceable.

14 shows the same representation as 13 , with the difference that all screw spindles are interconnected by a rack respectively, according to an actuator according to 12 can be driven.

15 shows a common drive of the screw spindles or the spindle nuts via a circulating drive belt 59 , where - as in 13 - the screw spindle 41 rotatably with the drive wheel 60 connected is. The longitudinal guide 64 is also present in this presentation.

The 16 shows a so-called Kipphebelantrieb, with which it is also possible to adjust the rear carriage via a central actuator over its entire length parallel in the Z direction. The same names apply to the same parts.

It will now be given information on the function of the rear-wheel adjustment, which apply to all rear end adjustments.

In the normal state (working state of the embroidery machine) is the force element 28 closed and the associated cylinder extended and put under pressure, so that a solid, heavy-duty connection between the rear 7 and the machine frame 17 is given about the Einstellgetriebe invention.

To adjust the rear carriage, the force element is switched powerless in a first embodiment, so that the piston used therewith or another adjustment can be moved without significant drag. The fine adjustment is fine adjusted according to the desired or metrologically determined Einstellmaß to adjust the rear carriage to the desired Einstellmaß. Thereafter, the power drive is turned on and then sets the rear carriage to the new position with respect to the machine frame.

In a second embodiment, it is provided that the force element is completely released and moved back, so that the upper wedge element or the stop element 25a lifted from the adjustment (see the free gap 65 in 13 ) and then the actuator is operated until the free gap 65 has reached the new Einstellmaß. Thereafter, the force element is again driven against the stop so as to set the rear end heavy duty and operate with the new Einstellmaß. The free gap 65 is therefore only available when actuating the actuator.

A third option is to adjust the adjustment gear under full or weakened force of the force element 28 to leave closed, with the free-gap 65 remains closed. The required and desired settings on the adjuster are then closed with Freispalt 65 carried out.

It is also added that the force element 28 can be formed in any way; it may be a hydraulic cylinder, a pneumatic cylinder, a servomotor, a linear drive, a screw drive or the like. All that matters is that a relatively high pressure keeps the connection between the machine frame and the rear end closed by counteracting the process forces sufficiently. For this purpose, the wedge elements 25 (please refer 3 - 6 . 8th ) or the stop elements 25a (please refer 7 . 13 - 16 ) provided to the forces from the rear 7 on the machine housing 17 on the machine housing 17 transferred to.

For the versions after the 13 to 16 The kinematic reversal also applies. Instead of a rotating driven screw spindle 41 can be a rotationally driven threaded nut 62 to be available. In this case, the free split 65 between screw and support surface 39 set.

LIST OF REFERENCE NUMBERS

1

embroidery machine

2

front cheek

3

needle side

4

web

5

fabric roller

6

fabric roller

7

rear car

8th

Rear car connection

9

shuttle guide

10

shuttle race

11

Z-axis

12

Setting direction (away)

13

Setting direction (closed)

14

drive rod

15

actuator

16

gear for adjustment

17

Schiffchenwange

18

career

19

wedge car

20

roll

21

connection

22

connection

23

recess

24

wave

25

key member

25a

stop element

26

piston rod

27

cylinder

28

force member

29

arrow

30

Wedge surface (from 25 ) 30a

31

Wedge surface (from 19 ) 31a

32

wedge angle

33

arrow

34

piston

35

adjustment distance 35 '

36

adjusting eccentric

37

connecting shaft

38

outer periphery

39

supporting

40

arrow

41

screw

42

transverse flange

43

linear slide

44

Housing (from 17 )

45

twist

46

scale

47

longitudinal slot

48

connection flange

49

Screw connection (for 19 )

50

connecting plate

51

carriage support

52

setting movement

53

control housing

54

drive shaft

55

pivot bearing

56

fixed bearing

57

clamp connectors

58

Halteblech

59

belts

60

drive wheel

61

pinion

62

threaded nut

63

rack

64

longitudinal guide

65

free gap

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 23157 A1 [0004]

Claims (10)

Shuttle embroidery machine with one between upper and lower fabric shaft ( 5 . 6 ) stretched fabric ( 4 ), on one side of the needle side ( 3 ) with a plurality of individual needles and on the opposite side the shuttle lanes ( 10 ) is arranged for receiving the shuttles driven there displaceably, wherein the Schiffchenbahnen ( 10 ) with at least one X-directional rear carriage ( 7 ) connected via Z-directional rear link connections ( 8th ) adjustable in Z-direction with a machine-fixed Schiffchenwange ( 17 ), characterized in that the adjustment of the at least one rear carriage ( 7 ) in the Z direction with a central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) he follows. Shuttle embroidery machine according to claim 1, characterized in that the central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) over the entire length of the rear carriage ( 7 ) acts. Shuttle embroidery machine according to claim 1 or 2, characterized in that the rear carriage ( 7 ) over the plurality of mutually parallel and mutually spaced rear link connections ( 8th ) with the machine-fixed Schiffchenwange ( 17 ) and that the central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) the length of the respective Hinterwagenanbindungen ( 8th ) adjustable changed. Shuttle embroidery machine according to one of claims 1 to 3, characterized in that the central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) causes the fine adjustment of the car width on the entire machine length. Shuttle embroidery machine according to one of claims 1 to 4, characterized in that the central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) operates with a controller which retrieves a set nominal dimension from a memory and feeds the actuator. Shuttle embroidery machine according to one of claims 1 to 5, characterized in that the adjustment of the width of the car takes place via a regulation in which the actual position of the rear carriage ( 7 ) and compared with a desired value at the respective position, and that the central actuator controls the respective difference at this position between setpoint and actual value to zero. Shuttle embroidery machine according to one of claims 1 to 6, characterized in that the central actuator ( 14 . 15 . 16 ; 25 . 28 . 36 . 41 ) as a fine adjustment drive by means of one or more actuators ( 15 . 28 ) in the needle direction all Hinterwagenanbindungen ( 7 . 8th . 17 ) controls or regulates, whereby the adjustment in needle direction (Z direction) of all Hinterwagenanbindungen ( 7 . 8th . 17 ) takes place almost at the same time. Shuttle embroidery machine according to claim 7, characterized in that at least one actuator ( 15 . 28 ) generates a linear or rotary movement, which by means of a linkage ( 14 . 21 . 22 ) on the individual rear-wheel connections ( 7 . 8th . 17 ) is conductive and there in a linear movement in the needle direction (Z-axis) can be implemented. Schiffchenstickmaschine according to claim 6 or 7, characterized in that the actuator its adjusting movement pneumatically, hydraulically or electrically to the individual rear carriage connections ( 7 . 8th . 17 ). Schiffchen embroidery machine according to one of claims 6 to 9, characterized in that the actuator its adjusting movement in each case via a wedge element ( 25 ) and / or via a rotatably driven eccentric ( 36 . 38 ) and / or a rotationally driven screw spindle ( 41 ) and / or converts via a rotationally driven adjusting nut in a linear movement in the needle longitudinal direction.

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