EP0316387A1

EP0316387A1 - Device for changing the warp beam and process for operating the device

Info

Publication number: EP0316387A1
Application number: EP19880904469
Authority: EP
Inventors: Gregor Gebald; Manfred Langen
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-22
Filing date: 1988-05-19
Publication date: 1989-05-24
Also published as: WO1988009405A1; DE3717258A1

Abstract

Dans un dispositif de changement de l'ensouple de la chaîne d'un métier de tissage au moyen d'un convoyeur de levage, le convoyeur de levage a la forme d'un chariot de transport capable d'enlever de manière totalement automatique les ensouples de la chaîne du métier et de les remplacer par des ensouples pleines. Le chariot de transport sans conducteur est commandé par un processeur central. La connexion de commande entre le chariot de transport et le processeur se fait par transmission de données au moyen de signaux infra-rouges ou radio, ou par un câble inductif placé dans le plancher.In a device for changing the warp beam of a weaving loom by means of a lifting conveyor, the lifting conveyor has the form of a transport carriage capable of removing the beams fully automatically of the trade chain and replace them with full beams. The driverless transport cart is controlled by a central processor. The control connection between the transport trolley and the processor is made by data transmission by means of infrared or radio signals, or by an inductive cable placed in the floor.

Description

"Device for changing the warp beam and method for operating the device"

The invention relates to a device for changing the warp beam on a weaving machine with the aid of a lifting transporter for lifting and removing an empty warp beam and for bringing up and inserting a full warp beam. It also relates to a method for operating the device.

When changing the warp beam, a multitude of different work steps are conventionally required, which are to be carried out with different devices to be adapted to the respective warp beam and, moreover, essentially by manual operation by hand. These operations include opening the bearing cover of the warp beam, clamping and cutting the chain, adapting the gripper of the lifting transporter to the length of the warp beam, cleaning the tree holder of the weaving machine after lifting the empty tree and of course connecting the new tree to the chain clamped in the machine.

The invention is based on the object of automating as many of the aforementioned individual steps as possible and controlled by a central material flow computer or the like, essentially without the use of personnel.

The solution according to the invention is characterized for the above-mentioned device for changing the warp beam with the aid of a lifting transporter by an automatic, computer-controlled transport trolley as a pallet truck; by means of a computer-controlled cutting device carried along with the transport carriage for separating a remaining chain remaining on the warp beam from the chain which is clamped in parallel in the weaving machine; by means of computer-controlled storage openers carried along with the transport trolley for releasing and closing a warp cover which locks a warp beam in its working position in the weaving machine; by means of computer-controlled three-dimensional lifting arms which can be displaced vertically and parallel to the warp beam in order to match the warp beam on the periphery of supporting disks provided between its tree disks and pins _? and by an on-board, computer-controlled cleaning system with suction arms for cleaning or vacuuming the empty warp beam shaft of the weaving machine.

Apart from the manipulations for clamping the chain on the weaving machine and for connecting the new tree to the clamped chain, all the processes associated with changing the warp beam can be carried out automatically and computer-controlled with the aid of the device according to the invention. In particular, the transport trolley can perform its tasks in a computer-controlled and driverless manner. The transport carriage has lifting or gripper arms for gripping the empty or full warp beam on the periphery of support disks provided between the respective warp beam disc and the adjacent warp beam pin. These support disks make it possible to move the warp beam from its position in the associated shaft without intermediate storage to lift out the weaving machine or to insert it into the bearing provided there because the pins themselves, on which the warp beam is to be stored during operation, are not touched by the gripper arms. These support disks therefore form an essential means for the automation of the warp beam change according to the invention.

The transport trolley according to the invention is not only suitable for lifting and transporting full and empty warp beams, but also - also automatically or computer-controlled - is able to cut off a remaining chain on the warp beam from the chain clamped on the weaving machine, which is used to catch it to release or close the warp beam locking force exerted by the chain on the warp beam during weaving and to take over the cleaning of the warp beam shaft of the weaving machine which is empty after the expired warp beam has been lifted out in one go with the removal of the empty warp beam. The data transmission between the transport trolley and the central material flow computer and between the other positions involved in the handling, such as the weaving machine, the tree store or the like, should preferably take place by infrared or radio signals or via an inductive line laid in the ground, for example.

The individual sequence is as follows: When a weaving machine reports a need to a central material flow computer, the latter orders the trolley to the weaving machine to pick up its expired warp beam. For this purpose, the transport carriage is positioned in front of the warp beam shaft of the weaving machine. On this, the warp threads are parallelized and fixed with the aid of a terminal strip, in particular with a separate automatic system.

In the course, the warp threads remaining on the expired warp beam are first separated from the clamped chain of the weaving machine with the aid of a cutting device carried with the transport carriage and also controlled by the computer. Thereupon, the locking of the warp beam is released by a mechanical rotating device of the transport carriage, in particular by opening warp beam bearing shells. At the same time or subsequently, the distance between the gripper arms of the transport carriage is automatically adapted to the needs of the respective warp beam by a command from the central computer by shifting the gripper arms on both sides in such a way that receiving shells provided on the gripper arms for the support disks provided on the warp beam ends for a safe Lifting the warp beam. If a complete parallelism between the transport carriage and the warp beam or weaving machine is not achieved in this way, there is preferably the further possibility of moving the gripper arms exactly to the position for safe lifting of the support disks by means of small adjustment movements in the horizontal and / or vertical direction. The empty warp beam raised with the trolley is z. B. transported to an interim storage facility and optionally positioned.

During the removal of the empty warp beam, the transport carriage preferably drives slowly past the weaving machine and cleans the contour of the empty warp beam shaft with the help of a suction system attached to it. In particular, suction arms, preferably with associated cleaning brushes, are provided on the transport carriage for this purpose. The trolley can also clean the route it is traveling by sweeping the lane and pushing the waste into the suction lane of the suction arms carried.

After setting down the expired warp beam, the trolley is computer-controlled to a full warp beam suitable for the operation of the respective weaving machine. This warp beam is picked up and transported to the weaving machine and positioned in the warp beam bearings. After the warp beam lock in the warp beam shaft is automatically closed by the rotating device carried with the transport carriage, a warp beam change for the transport carriage according to the invention is ended. This can be added to new tasks or to a standby position. The supplied warp beam is connected by an operator to the previously parallelized warp threads of the weaving machine. Details of the invention are explained on the basis of the schematic illustration in the accompanying drawing. Show it:

Fig. 1 is a longitudinal view, partly in

Section of a transport carriage arranged in front of a warp beam shaft;

FIG. 2 shows a section approximately parallel to line II-II of FIG. 1;

3 shows a top view of the arrangement according to FIG. 1

The warp beam changing device according to the exemplary embodiment according to FIGS. 1 to 3 essentially consists of a transport carriage, denoted overall by 1, and a computer-controlled cutting device 2, carried along with the transport carriage 1, for cutting off the warp beam, denoted overall by 3, on the weaving machine in FIG Clamping rails 4 clamped chain 5 and a computer-controlled bearing opener 6 carried with the transport carriage 1 for releasing and closing a warp beam 3 in its working position in the weaving machine, arresting the bearing caps 7 connected to the weaving machine (not shown). Finally, the transport carriage 1 has computer-controlled three-dimensionally Lifting arms 8 to be displaced perpendicularly and parallel to the warp beam 3 with bearing shells 9 for placing support disks 11 placed on the warp beam 10.

The lifting arms 8 can be adjusted in the horizontal direction 12 to adapt to the position of the support disks 11 as well as for lifting the warp beam 3 in the vertical direction 13. In order to prevent the carriage 1 from tipping over when the warp beam is lifted, support legs 14 protruding in the direction of the warp beam 3 are provided thereon. Finally, the lifting arms 8 can be displaced relative to one another in the longitudinal direction 15 of the warp beam 3 or of the transport carriage 1 in such a way that their bearing shells 9 must always be aligned precisely with the support disks 11. The support disks 11 are arranged and designed between the journal 10 and the tree disk 16 such that the same bearing shells 9 are always to be used for warp beams of very different types.

The trolley 1 is also equipped with a computer-controlled cleaning system, which is designated in its entirety by 17 in FIGS. 1 and 3, to which suction arms 18, preferably with associated brushes 19, can belong.

Finally, the trolley 1, which is to be moved through a paint shop hall in a driverless, computer-controlled manner, has bumpers 20 acting as sensors and warning lights 21.

In the embodiment of FIGS. 1 to 3 it is assumed that the trolley 1 is approximately in the

Is positioned in front of a warp beam 3 to be replaced. First, the remaining chain 22 of the warp beam

3 separated from the parallel clamped chain 5 of the weaving machine with the aid of the cutting device 2. The warp beam bearing covers 7 of the weaving machine are opened by a mechanical rotating device of the transport carriage 1 serving as a bearing opener 6. The trolley 1 adjusts the mutual distance of its lifting arms 8 or their bearing shells 9 automatically, computer-controlled, to the respective requirements. He receives a message about this from the central computer (not shown). If the transport carriage 1 and the weaving machine or the warp beam 3 are not completely parallel to one another, there is the possibility of moving the lifting arms 8 out of the transport carriage 1 at different distances in the horizontal direction 12.

1 and 3, in addition to the main position of the lifting arms 8 in relation to the warp beam 3 shown, alternative positions of lifting arms 8 and tree disks 16 are also shown in broken lines.

After the empty warp beam 3 according to FIG. 2 has been lifted, the warp beam is brought into the carriage receptacle, for example designed as a passage 23, with the aid of the lifting arms 8 into the interior of the transport carriage 1. In principle, the transport carriage 1 and the lifting arms 8 or their bearing shells 9 can be designed such that a warp beam 3 can be moved out of or into the passage 23 to one or the other longitudinal side.

After picking up the empty warp beam 3, the transport carriage 1 moves slowly past the warp beam shaft of the respective weaving machine. Here, in Exemplary embodiment, the contour of the warp beam shaft is sucked out of the cleaning system 17 connected to the transport carriage 1. The waste can be given away at the same time as the empty warp beam in an intermediate storage facility.

The transport carriage 1 then picks up a full warp beam 3 suitable for the weaving machine in question at a location reported to it by the central computer and transports it to the weaving machine. After the full warp beam has been properly inserted into the weaving machine or its warp beam shaft and locked there, the transport carriage 1 moves to a waiting position or, if requested by the central computer, to another weaving machine. The supplied warp beam is connected by an operator to the chain previously parallelized in the clamping rails 4.

Reference list

. Dolly

= Cutting device

= Warp beam

= Clamping rail

= Chain

= Warehouse opening

= Bearing cap

= Lifting arm

= Bearing shell

= Warp beam

= Support disc

= Horizontal direction

= Vertical direction-

= Support leg

= Longitudinal direction

= Tree slice

= Cleaning device

= Suction arm

= Brush

= Bumper

= Warning light

= Residual chain

= Passage

Claims

Claims:

1. Device for changing the warp beam (3) on a weaving machine with the aid of a lifting transporter (1) for lifting and transporting an empty warp beam (3) as well as for bringing up and inserting a full warp beam, g e k e n n e e i c h n e t d u r c h

(a) an automatic, computer-guided transport carriage (1) as a lifting carriage;

(b) a computer-controlled cutting device (2) carried with the transport carriage (1) for separating a remaining chain (22) remaining on the warp beam (3) from the chain (5) clamped in parallel in the weaving machine;

(c) with the transport carriage (1), computer-controlled bearing opener (6) for releasing and closing a warp beam (3) in it Locking the working position in the weaving machine, the bearing caps (7);

(d) computer-controlled lifting arms (8) to be displaced three-dimensionally perpendicularly and parallel to the warp beam (3) for adaptively grasping the warp beam (3) on the periphery of support disks (11) provided between its tree disks (16) and pins (10); and

(e) a computer-controlled cleaning system (17) carried along with suction arms (18) for cleaning or vacuuming the empty warp beam shaft of the weaving machine.

2. Apparatus according to claim 1, characterized in that the transport carriage (1) are associated with means for parallelizing the longitudinal direction of the carriage (15) with the warp beam axis and that the lifting arms (8) are a Feinver¬ adjusting device for precise adjustment of the lifting arm receptacle (9) have the support discs (11).

3. Device according to claim 1 or 2, so that the transport carriage (1) has a device (19) for sweeping waste lying on the floor into the suction track of a suction arm (18).

4. Device according to one or more of claims 1 to 3, characterized in that as a control connection between the trolley (1) and the associated computer a data transmission by infrared or radio signals or by an inductive line, for example laid in the floor, is provided.

5. Device according to one or more of claims 1 to 4, a sensor on the warp beam with line to a central material flow computer.

6. Method for operating the device according to one or more of claims 1 to 5, d a d u r c h g e k e n n z e i c h n e t,

(a) that, in the case of a demand message issued by a central material flow computer, the transport carriage (1) is positioned in front of the warp beam shaft of the warp beam (3) to be changed and computerized to the warp beam (3) in parallel;

(b) that the warp beam (3) from the trolley (1) is computer-controlled released from a locking device (7) counteracting the pull of the chain;

(c) that the optionally clamped warp thread (5) of the weaving machine is computer-controlled separated from the transport carriage (1) from a remaining chain (22) remaining on the warp beam (3);

(d) that on the lifting arms (8) provided bearing shells (9) for lifting the warp beam (1) be adapted to the axial position of support disks (11) placed on the associated tree disks (16);

(e) that the warp beam (3) is raised and removed with the aid of the lifting arms (8);

(f) that after picking up an empty warp beam (3) the transport carriage (1) is guided past the weaving machine in slow motion at the warp beam shaft and the contour of the warp beam shaft is extracted from the transport carriage (1);

(g) that with the help of the transport carriage (1) a full warp beam is picked up and placed in the associated warehouse of the warp beam shaft;

(h) that the warp beam (3) is then locked in its bearings against lifting by the chain (5) of the weaving machine; and

(i) that the warp beam (3) is finally connected in a separate work step to the previously parallelized clamped chain (5).

7. The method of claim 6, d a d u r c h g e k e n n z e i c h n e t that the command of the material flow computer for Kettbaum¬ change based on a signal emitted by a sensor associated with the warp beam (3).

8. The method according to claim 6 or 7, characterized in that the transport carriage (1) first in the middle is positioned in front of an expired warp beam (3) stored in the weaving machine and that the mutual distance of the lifting arms (8) and then the mutual distance of the supporting disks (11), in particular by moving both lifting arms (8), is adapted.