GB2141746A - Stationary gripper head guide for loom - Google Patents

Abstract

A stationary gripper head guide for a loom is provided outside of the shed and the gripper heads together with the gripper rods (grippers 5) may be readily replaced. The grippers are guided in adjustable guide rails (3,4) respectively and they may be removed from the guide rails (3,4) by the removal of slides (6) in the direction of the arrow in Fig. 2. <IMAGE>

Description

SPECIFICATION Stationary gripper head guide for weaving machines This invention reiates to a stationary gripper head guide for weaving machines, which guide is disposed outside of the loom shed.

A fixed guide for the gripper rods both in the horizontal and in the vertical plane is known from the German Offenlegungsschrift 2 553 039. In this respect, the gripper rods are fastened in pairs at their external ends to a connection element in each case, which element is guided on two guide rods in a symmetrical manner with respect to a median plane between the gripper rods. So-called precision shafts are used as guide rods. The grippers may therefore be exchanged in a simple manner without subsequent resetting.

However, this exchange process is not described and guiding of the grippers within the loom shed is not proposed, i.e. the guiding must take place in a precise manner outside of the shed. In the case of the exchange of the grippers, the type of guiding using a shaft and a sleeve is disadvantageous, as the component to be exchanged is completely surrounded by a guide sleeve which makes it difficult to carry out a rapid exchange.

The present invention seeks to provide a gripper head guide outside of the loom shed, in which the gripper heads and gripper rods may be rapidly exchanged in a simple manner thereby to improve working conditions and increase output. Further it seeks to achieve reliable guiding of the gripper heads and therefore also of the gripper rods, called grippers in the following, outside of the loom shed. In addition short replacement times for the exchange of the grippers should be achieved, and a satisfactory reproducibility of the gripper guiding should be ensured with a rapid and uncomplicated exchange procedure.

In accordance with the present invention, there is provided a stationary gripper head guide for a weaving machine disposed in a fixed manner on the machine frame of a weaving machine outside of the reed area, characterised in that the grippers are guided in a suspended manner for the upper shed and/or in an upright manner for the lower shed in adjustable guide rails and in that the grippers are removed from the guide rails by the actuation of slides.

One embodiment of the invention is such that the grippers may only be moved in the weft direction in the guide rails by means of slides and in that the grippers may be exchanged in the case of locally fixed guide rails.

The invention will be more fully understood from the following description given by way of example only with reference to the figures of the accompanying drawing in which Figs. 1 and 2 are a side and end elevation of a gripper head guide for a weaving machine.

Referring now to the drawing a gripper head guide comprises a base body 1 which is rigidly connected with a machine frame 2 (only the outline of which is shown). Adjustable guide rails 3 and 4 for grippers 5 are disposed on the base body 1. Slides 6 with their guide elements 7 are piaced on the guide rails 3 and 4.

If it is necessary to replace the gripper 5, the slides 6 are displaced in their guide elements 7 (in the direction of the arrow), so that access to the grippers 5 is ensured. The grippers 5 which are guided in a suspended or an upright manner are lifted from the guide rails 3 and 4 in the direction of the base body 1. The insertion of the grippers 5 takes place in the reverse manner, so that these may act in an exact manner on the previous guide path. After the slides 6 have been closed again, the machine is ready for operation.

1. A stationary gripper head guide for a weaving machine disposed in a fixed manner on the machine frame of a weaving machine outside of the reed area, characterised in that the grippers are guided in a suspended manner for the upper shed and/or in an upright manner for the lower shed in adjustable guide rails and in that the grippers are removed from the guide rails by the actuation of slides.

2. The stationary gripper head guide for weaving machines as claimed in claim 1, wherein the gripper is moved only in the weft direction in the guide rails by means of slides and in that the gripper is exchanged in the case of locally fixed guide rails.

3. A stationary gripper head constructed and arranged substantially as hereinbefore described and as shown in the figures of the accompanying drawing.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Stationary gripper head guide for weaving machines This invention reiates to a stationary gripper head guide for weaving machines, which guide is disposed outside of the loom shed. A fixed guide for the gripper rods both in the horizontal and in the vertical plane is known from the German Offenlegungsschrift 2 553 039. In this respect, the gripper rods are fastened in pairs at their external ends to a connection element in each case, which element is guided on two guide rods in a symmetrical manner with respect to a median plane between the gripper rods. So-called precision shafts are used as guide rods. The grippers may therefore be exchanged in a simple manner without subsequent resetting. However, this exchange process is not described and guiding of the grippers within the loom shed is not proposed, i.e. the guiding must take place in a precise manner outside of the shed. In the case of the exchange of the grippers, the type of guiding using a shaft and a sleeve is disadvantageous, as the component to be exchanged is completely surrounded by a guide sleeve which makes it difficult to carry out a rapid exchange. The present invention seeks to provide a gripper head guide outside of the loom shed, in which the gripper heads and gripper rods may be rapidly exchanged in a simple manner thereby to improve working conditions and increase output. Further it seeks to achieve reliable guiding of the gripper heads and therefore also of the gripper rods, called grippers in the following, outside of the loom shed. In addition short replacement times for the exchange of the grippers should be achieved, and a satisfactory reproducibility of the gripper guiding should be ensured with a rapid and uncomplicated exchange procedure. In accordance with the present invention, there is provided a stationary gripper head guide for a weaving machine disposed in a fixed manner on the machine frame of a weaving machine outside of the reed area, characterised in that the grippers are guided in a suspended manner for the upper shed and/or in an upright manner for the lower shed in adjustable guide rails and in that the grippers are removed from the guide rails by the actuation of slides. One embodiment of the invention is such that the grippers may only be moved in the weft direction in the guide rails by means of slides and in that the grippers may be exchanged in the case of locally fixed guide rails. The invention will be more fully understood from the following description given by way of example only with reference to the figures of the accompanying drawing in which Figs. 1 and 2 are a side and end elevation of a gripper head guide for a weaving machine. Referring now to the drawing a gripper head guide comprises a base body 1 which is rigidly connected with a machine frame 2 (only the outline of which is shown). Adjustable guide rails 3 and 4 for grippers 5 are disposed on the base body 1. Slides 6 with their guide elements 7 are piaced on the guide rails 3 and 4. If it is necessary to replace the gripper 5, the slides 6 are displaced in their guide elements 7 (in the direction of the arrow), so that access to the grippers 5 is ensured. The grippers 5 which are guided in a suspended or an upright manner are lifted from the guide rails 3 and 4 in the direction of the base body 1. The insertion of the grippers 5 takes place in the reverse manner, so that these may act in an exact manner on the previous guide path. After the slides 6 have been closed again, the machine is ready for operation. CLAIMS

1. A stationary gripper head guide for a weaving machine disposed in a fixed manner on the machine frame of a weaving machine outside of the reed area, characterised in that the grippers are guided in a suspended manner for the upper shed and/or in an upright manner for the lower shed in adjustable guide rails and in that the grippers are removed from the guide rails by the actuation of slides.

2. The stationary gripper head guide for weaving machines as claimed in claim 1, wherein the gripper is moved only in the weft direction in the guide rails by means of slides and in that the gripper is exchanged in the case of locally fixed guide rails.

3. A stationary gripper head constructed and arranged substantially as hereinbefore described and as shown in the figures of the accompanying drawing.