KR102340800B1 - Method and apparatus for precisely positioning and processing fabrics, etc. - Google Patents

Abstract

The present invention relates to a device (2) and a method and device (2) for accurately positioning and processing fabrics and the like, in particular fitting pieces (1), said method comprising the steps of: orienting and/or positioning (2) fitting pieces (1) ), feeding the fitting piece 1 to the station 9 , step 3 , the markings on the fitting piece 1 are captured by the sensor means and the actual marking sequence is compared with the setpoint marking sequence. (4), determining the calibration requirements (5), sending the calibration requirements to the calibration station 12 (6), checking the orientation of the fitting piece (1) Optionally repeating step 7 of calibration by calibration station 12 according to calibration requirements, step 8 of feeding piece of fitting 1 to processing station 13, and individual method steps or several method steps including the steps of

Description

Method and apparatus for precisely positioning and processing fabrics, etc.

FIELD OF THE INVENTION The present invention relates to a method and apparatus for precisely positioning and processing fabrics and the like, in particular pieces of a pattern.

Methods and corresponding devices in which fabrics, such as fabric webs or fabric strips, are (pre)oriented, for example manually or automatically and suitably oriented and fed to a processing stage or to a conveyor of an apparatus and corresponding apparatuses are conventionally known in the art. The conveyor transports the fabrics through the apparatus to various processing stations.

Both fabric pieces and pattern pieces made of any material that can be treated in the same way as fabric materials are treated by such methods and corresponding devices. These include, for example, pattern pieces made of paper or plastic.

It is known, for example, to automatically (pre)orient a correctly oriented textile web prior to a processing operation, for example cutting the textile web into pattern pieces. Orientation of the fabric web is performed mechanically, for example, by mechanically pulling the outer edge or file edge of the fabric onto a divided guid bar. The guide bar specifies the correct orientation. In order to be able to perform such mechanical alignment, textile webs must have an edge that can be detected by a guide bar to be able to pull the web into a desired position. This type of alignment means that it is impossible without an outer edge or a pile edge, for example based on patterns or a yarn or or a stitch course. Furthermore, the fabric must be continuous, as is the case with fabric webs. This type of alignment is not possible with fabric pieces. After the correct orientation of the textile web, it is possible to precisely cut the pattern pieces. The pattern pieces are then further processed (eg hemmed, folded and/or sewn) so that each pattern piece is automatically or as part of a device for further processing of the pattern piece. transferred manually.

In the case of automatic transfer, the pattern pieces are conveyed by means of a suitable transfer and/or conveyor, for example, to a station where further processing may take place or where the pattern pieces are conveyed further away. Deviations from the correct orientation of the pattern piece generated during cutting of the (pre)oriented fabric are transmitted. The pattern pieces may also slide off the device during the process of being transferred to the station so that they are no longer precisely aligned. This makes precise further processing of the pattern pieces impossible, resulting in deterioration of product quality.

In the case of manual transfer, where an operator takes a pattern piece from an upstream processing station or storage location and manually feeds it to the station in a (pre)oriented state, the operator orients or positions the pattern piece by eye or using machine aids. Determine and make it possible to put it on the device. It has the disadvantage that the fabric cannot be processed with precise orientation due to the inexperienced and even the careless moments of the new operator resulting in inaccuracy of orientation and positioning. These inaccuracies mean that they degrade the quality of the fabric intermediate or final product produced during processing, making it unacceptable.

Even if a pattern piece is delivered manually or automatically with pattern correct (pre)alignment, deviations from the correct orientation may occur during transport of the pattern piece to a processing station. For example, belt drives can be used as conveyors to convey pattern pieces through a conveying plate through the device, especially thick, especially thick ones, where the pattern pieces slide off the conveyor and the correct orientation is not ensured during further processing. and/or in the case of flexible fabrics.

It is an object of the present invention to ensure that the pattern pieces fed to the processing station are precisely oriented and at the same time allowing the individual alignment of even fabrics or similar pattern pieces without external or pile edges while ensuring that a particularly high quality product can be manufactured. and to provide an apparatus.

To achieve this object, the present invention proposes a method according to claim 1 .

The pattern pieces may be manually removed by an operator, for example, from an upstream portion of the device or from a storage location. Prior to feeding to the device, in particular to the station of the device, a manual (pre)alignment or positioning of the pattern pieces is performed, after which the operator manually feeds the pattern pieces to the device, more specifically to the station.

Alternatively, (pre)alignment or positioning of the pattern pieces can be automatically It is possible to be performed with The station may be, for example, a transfer station that transfers pattern pieces through the device or performs any other task.

After the pattern piece is supplied, its orientation and/or positioning is checked and, if necessary, a calibration step is performed. The checking step is preferably carried out in a non-contact manner, for example by sensory detection of marks of the pattern piece. The marks are preferably present on the surface of the pattern piece, for example in the form of a pattern or in the form of a fabric of a fabric, eg in the form of a yarn course or in the form of stitches, seams or similar fabric marks. Marks can also be formed by differences in the fabric, for example in the form of patterns formed with different pile heights. The marks are preferably detected by means of sensors.

Sensory detection may be accomplished with the naked eye or by suitable devices. The detected mark path is matched with a predetermined desired mark path. This may also be done by people or by a suitable processor, for example a data processor.

If detection and adjustment are performed with the naked eye of the operator, the desired mark path can be marked, for example, formed by the conveying base through which the pattern piece is conveyed or marked on the conveying base. The operator detects the deviation of the path of the pattern piece from the target path and determines a correction value. The calibration value may be determined by the operator based on the empirical values and transmitted to the calibration station, for example by manual input to a control element coupled thereto, so that a manual calibration is performed according to the calibration value. If a deviation is detected by the sensors, the detected mark path is for example transmitted to a processing station which then makes an adjustment to the desired mark path, where the desired mark path is preferably in the memory of the processing device. It is saved and kept ready for comparison with the path of the marks. In case of deviations, the processing device calculates a calibration specification transmitted directly to the appropriate receiver of the calibration station such that automatic calibration of alignment is performed by the calibration station.

Alternatively, the calculated calibration specifications may also be presented on a display panel, such as a monitor, to allow an operator to read these commands and manually enter them into a control element coupled to the calibration station. have.

Then, the calibration device performs a calibration step according to the calibration value or according to the calibration specification in order to ensure that the mark paths are at least approximately matched. Calibration may be effected, for example, by sending calibration values or calibration specifications to a controller of a suitable machine component, in which case the controller controls the machine component and performs calibration by appropriate mechanical action on the pattern piece and pattern Make sure the pieces are aligned correctly.

Such readjustment of the mark path, and thus of the pattern piece, makes it possible to precisely position the fabric in the device so that it can be precisely processed at the processing station, and in particular high quality products can be produced.

Preferably, the non-contact check also makes it possible to align the edgeless pattern pieces so that individual and precise alignment and positioning can be performed based on patterns or yarn courses or similar fabric marks.

After processing, further checks and corrections may be performed, followed by additional processing steps in which the pattern pieces must be precisely aligned. For example, it is possible for single or multiple method steps to be repeated.

Alternatively, the object is achieved by a method according to claim 2 .

The pattern pieces may be manually removed by an operator from, for example, an upstream portion of the device or from a storage location and fed manually into the device. Before being fed to the device, in particular the station of the device, a manual (pre)alignment or positioning of the pattern pieces is performed.

Alternatively, it is also possible for the pattern pieces to be automatically (pre)aligned or positioned and then fed automatically to the device or station. The station may be, for example, a transfer station that moves pattern pieces through the device or performs any other task.

After the first pattern piece is supplied, the pattern piece is processed at a processing station. Then, its alignment and/or positioning is checked. If deviations from the desired mark path are identified during the check phase, calibration values or calibration specifications that are transmitted from the processing station to an upstream calibration station are determined. The pattern pieces that are transported through the device are then aligned according to the calibration values or calibration specifications before being later fed to a processing station. As a result, subsequent pattern pieces can be precisely aligned with respect to the processing step so that high-quality products can be manufactured.

The checking step is preferably carried out in a non-contact manner, for example by sensory detection of the marks of the pattern piece. The marks are preferably present on the surface of the pattern piece, for example in the form of a pattern or in the form of a fabric of a fabric, for example in the form of a yarn course or in the form of stitches, seams or similar fabric marks. Marks may also be formed in the form of patterns formed by differences in the fabric, for example by different pile heights. The marks are preferably detected by means of sensors.

Sensory detection may be accomplished with the naked eye or by suitable devices. The detected mark path matches a predetermined desired mark path. This may also be done by people or by a suitable processor, for example a data processor.

When detection and adjustment are performed with the naked eye of an operator, the operator recognizes the deviation of the fitting profile portion from the desired course and determines a correction value. The calibration value is determined by the operator on the basis of the empirical values and can be transmitted to the calibration station, for example by manual input into a control element coupled thereto, so that a manual calibration is performed according to the calibration value. Alternatively, the detection and adjustment may be performed by the apparatus, in which case the detected mark path is transmitted, for example, to a processing station which then makes adjustments to the desired mark path. The desired mark path is preferably stored in the memory of the processor and ready for comparison with the path of marks. In case of deviations, the processor calculates a calibration specification transmitted directly to the appropriate receiver of the calibration station so that automatic calibration of alignment of subsequent pattern pieces can be performed by the calibration station.

Alternatively, the calculated calibration specifications may also be displayed on a display panel such as a monitor so that an operator can read these commands and manually enter them into a control element coupled to the calibration station.

The calibration device performs a calibration step according to a calibration value or according to a calibration command so that the mark paths are at least approximately coincident. Calibration may be effected, for example, by sending calibration values or calibration specifications to a controller of a suitable machine component, in which case the controller controls the machine component and the latter performs calibration by appropriate machine action on the pattern piece. and make sure the pattern pieces are precisely aligned.

Such readjustment of the mark path, and thus of subsequent pattern pieces, makes it possible to precisely position the fabric in the device so that the subsequent fabrics can be precisely processed at the processing station, and a particularly high-quality product can be produced.

Preferably, the non-contact check also makes it possible to align the edgeless pattern pieces so that individual and precise alignment and positioning can be performed only on the basis of patterns or yarn courses or similar fabric marks. do.

After processing, other checks and corrections may be performed, in which case it is possible for one or more method steps to be repeated.

Preferably, the method steps occur during continuous or discontinuous movement of the pattern piece.

The pattern pieces are transported through the device by a conveyor. Since the pattern pieces may be removed from the device during movement, it is advantageous for a calibration step to be performed during transport in order to precisely align the pattern pieces again before they reach another processing station. The method steps can preferably be carried out during continuous movement of the pattern piece through the apparatus so that the method can be practiced economically. Very high velocities of more than 20 m per minute can be achieved. However, discontinuous movement may occur if necessary.

Preferably, calibration is made immediately prior to feeding for processing and implementation of the processing steps. This ensures that the pattern pieces are fed into the processing station and processed therein to be precisely aligned and that products of particularly good quality can be produced.

A sensor unit having at least one sensor or camera detects the marks in the pattern piece, the sensor unit or camera compares the actually detected mark path with the nominal mark path stored in the computer's memory and corrects automatically or manually in case of deviations Communicate with a computer that provides calibration specifications for

The pattern piece is conveyed by a conveyor past a sensor unit or camera, and at least one sensor or camera detects the pattern or yarn course of the pattern piece. Alternatively, the sensor unit or camera may be transported past the pattern piece. The sensor unit or camera communicates with the computer and transmits the acquired data to the computer. The computer is coupled to the memory and has access to the stored data, and the at least one desired mark path is stored in the memory where the computer coordinates the path of the marks. If there are deviations, the computer prepares a corresponding calibration specification and makes it available so that the calibration can be performed. Calibration may be performed automatically by transmitting calibration specifications in the form of corresponding actuation signals to the calibration station. Alternatively, the calibration may be made manually, in which case the calibration specifications are displayed on and read from a display panel, eg a monitor, and then entered into a control element in communication with the calibration station. .

Preferably, the sensor unit or camera detects the actual path of the deviation and the direction of the deviation.

The correct mark path is prepared in this way. With respect to the direction, it is determined, for example, whether the deviation extends transverse to the direction of movement to the left or to the right. The path is also rigorously detected, ie to what extent a deviation exists. The path may be determined in mm units, for example. These records are compared to the desired mark path so that an accurate calibration specification can be created with the relevant dimensions.

Preferably, the sensor detects the distance to marks on the surface of the pattern piece.

This allows deviations from the desired mark path to be detected, for example based on the progression of pile height or other raised zones at the surface of the pattern piece.

Calibration values and optionally calibration specifications are manually entered into the control element, and the alignment is corrected according to the input. The operator may input the determined correction values into the control element and influence the alignment correction.

Once the processor adjusts the paths and a calibration specification is generated, this calibration specification can preferably be read from the display panel and input to the control element.

The control element is preferably coupled to the calibration station via a controller, the controller controlling the calibration station according to an input to the control element.

Deviations and/or calibration specifications are indicated on the display panel.

The calibration specifications may be displayed on and read from the display panel, for example in the form of numerical values or comparable information. Operators can enter values into control elements that communicate with the calibration station and use these values for manual calibration. Alternatively or additionally, it is also possible for deviations to be indicated from which a correction value can be determined.

Alternatively or additionally, it may be provided that the calibration specifications are sent directly to a calibration station that automatically executes the calibration according to the calibration specifications. As a result, no human intervention is required, and the alignment correction of the pattern pieces takes place in a fully automatic manner. The control system and/or display panel may also serve as a safety precaution in case of failure of an automatic system or individual adjustment.

Preferably, the calibration is carried out in both directions transverse to the direction of movement.

The pattern pieces can slide in both directions transverse to the direction of movement, so calibration in both directions is required to achieve accurate alignment.

The invention also relates to a method, preferably for aligning the surface area or edge area of a flexible web piece, in particular a fabric piece, in particular for manual or automatic calibration by means of a calibration station according to claim 1 or 2 . , wherein the web piece is preferably conveyed by means of a conveyor in a direction of movement parallel to the edge region at least in the surface region or near the edge region and preferably on a driven conveyor of the conveyor relative to a supporting member of the conveyor. is pressed by and transported along the support member. Methods and devices are known from the prior art for aligning edge regions of pieces of flexible web, for example a piece of textile material.

It should be understood that the term “flexible web pieces” not only includes pieces of textile material, but rather pieces of plastic, paper or similar materials may also be used.

Devices are known from the prior art in which webs of textile material are aligned and hemmed at their longitudinal edges. After hemming, these webs are aligned and divided into substantially rectangular shaped pattern pieces. Then, these pattern pieces are realigned with the not yet hemmed or folded edge and transported by a corresponding conveyor, the alignment for the purpose of enabling subsequent hemming and stitching of the edge area without causing a defective appearance. is carried out A defective appearance occurs when the outer edges of the pattern pieces are not precisely aligned. Alignment devices and alignment methods are known from the prior art in which a file edge present on a pattern piece or web piece rising above the plane of the web piece is used as an alignment aid. Mechanical alignment means may be supported on this pile edge and may also align the pile edge with respect to corresponding subsequent devices required for eg hemming and stitching. However, without such file edges, alignment is usually impossible or can only be achieved with considerable difficulty.

For example, it is not sufficient to align the first end of the edge region of a web piece and then transport such a web piece by means of suitable devices, since the alignment position set at the beginning of the web piece does not continue over the web piece. This is because the web piece is flexible and the alignment initially achieved is lost while moving as a result of the associated devices.

In particular in the case of flexible web pieces already provided with longitudinal hems even before the web pieces are separated from the subsequently provided material web by corresponding transverse edges by changing the alignment position once they are separated from the material web. For this reason, it poses significant problems in ensuring that high quality and accurate alignment are achieved in the edge region. However, such alignment is a prerequisite for further processing of the corresponding pattern piece or the like, since mechanical hemming and mechanical stitching of the hem may need to be performed after alignment. Corresponding pattern pieces are only completed after these tasks have been completed. Errors in previous alignment result in deterioration of the pattern piece and are therefore unacceptable.

In order to ensure that the surface area or the edge area of the web piece is formed precisely in a simple way in the form of a piece of fabric, an improvement is proposed.

In a conventional approach, the web piece is first transported near the edge area by a conveyor in a direction of movement parallel to the edge area. The conveyor may for example consist of a conveyor belt which may also be operated via additional workstations of the manufacturing device. During certain uses, the conveyor belt is pressed against a support member (eg, a support plate) and transported along the support member. The support plate forms a counter-surface such that the edge region of the web piece is held between the conveyor (conveyor belt) and the support member and is conveyed in the direction of movement along the support member.

With the solution of the present invention, if the alignment of the web piece deviates further from the target alignment of the web piece towards the conveyor, then the incorrectly aligned portion or edge region of the web piece acts towards or parallel to the plane spanned by the web piece. It is provided that the deviating alignment of the web piece is corrected to the target alignment by being moved by an appropriate amount away from the conveyor by a force, preferably a tensile force transverse to the direction of movement.

A piece of web slid from conveyor to conveyor can be pulled by a force acting preferentially horizontally transverse to the direction of travel resulting in correct alignment.

Alternatively, with the solution of the present invention, an edge region of the web piece is secured to at least one second conveyor spaced apart from the conveyor and formed in a gap and conveyed integrally, wherein the alignment of the web piece differs from the target alignment of the web piece. Further deviation towards the first conveyor causes the at least one actuator to act as a compressive force on the area of the fabric strip spanning over the gap so that the fabric strip moves from the first conveyor in a direction transverse to the direction of travel and transverse to the first conveyor by an appropriate amount. By moving, it is provided that the deviating alignment of the web piece is corrected to the target alignment.

During transport through the device, the edge region of the web piece is secured to a second conveyor. The second conveyor is preferably synchronized with the first conveyor such that the web pieces are transported uniformly through the device. A gap is provided between the first and second conveyors spanned by the web piece. Upon detection of a deviation of the web piece from the target alignment, the actuator applies a compressive force to this area and moves exclusively transverse to the first conveyor until the web piece is moved to the target alignment.

Alternatively, with the solution of the present invention, an alignment edge is installed on a conveyor or a machine part associated with the conveyor, or a support member forms an alignment edge set in an alignment position, so that the alignment of the web piece is shifted from the target alignment of the web piece to the conveyor. Further deviation toward the side causes the misaligned portion or edge region of the web piece to be pulled over the alignment edge and moved transverse to the direction of travel and transverse to the conveyor by an appropriate amount spaced apart from the conveyor, resulting in deviating alignment of the web piece. Calibration to target alignment is provided.

According to the present invention, an alignment edge is provided at an appropriate location on the machine frame, conveyor or other part of the overall apparatus used for the purpose of aligning web pieces. The alignment edge may be a stable edge. However, the alignment edge may also be provided in the form of a rod, flexible tension wire, or the like.

The support member itself may also form an alignment edge. Each alignment edge can be adjusted to a position suitable for its intended purpose. If the web piece is in an orientation that deviates from the target alignment, the web piece is pulled over the alignment edge and moved transverse to the direction of travel and transverse to the conveyor to correct the deviating alignment of the web piece to the target alignment.

The term “transverse” is not to be understood in a perpendicular sense, but rather it is sufficient if, for example, the pulling motion occurs at an angle such that a portion of the tensile force component extends horizontally and another portion of the tensile force extends vertically. In any case, a sufficient amount of tensile force must be applied to the web piece to move the web portion to the desired degree. Preferably, if the alignment of the web piece deviates further towards the conveyor from the target alignment of the web piece, the incorrectly aligned portion or edge region of the web piece proceeds in the direction of travel or over an alignment edge running in the direction of travel and is adjacent to the conveyor. The support member comprises at least one of the recesses or the support member such that the deviating alignment of the web piece is corrected to the target alignment by being pulled over the alignment edge of the recess and moved transverse to the direction of travel and transverse to the conveyor by an appropriate amount spaced apart from the conveyor. It has one alignment edge.

In at least one of the projecting areas, preferably in the two projecting areas, a recess or an outer edge running parallel to the direction of movement is provided. The web piece is, for example, disposed over a corresponding recess or outer edge. The user can determine the alignment of the edge region of the web piece, and if the alignment of the web piece deviates from the correct target alignment of the web piece, move the web piece. If a web piece that deviates from its correct target alignment is closer to the conveyor with its edge area, then the incorrectly aligned portion or edge area of the web piece is adjacent to or over an outer edge running parallel to the direction of travel and adjacent to the direction of travel. Deviating alignment of the web piece by being moved (pulled) by an appropriate amount away from the conveyor by being pulled over the outer edge of the recess running parallel to, in particular transverse to the direction of travel and transverse to the conveyor, is the target alignment is corrected with As soon as the target alignment is achieved, a tensile force is no longer applied to the edge region of the web piece, rather the latter is further transported only to the conveyor. Preferably, such configuration and alignment are provided on all sides of the conveyor to the left and right so that a balance is achieved by a suitable tension force acting on the edge area on one side and a corresponding tension force acting on the web piece on the other side, so that the target Alignment results in precise alignment of web fragments.

Preferably, the alignment edges are aligned parallel to the direction of movement.

Such orientation is not essential, but advantageous for the practice of the method.

Alignment is possible even in the case of non-precisely non-parallel alignments, as appropriate force effects can be applied to compensate for this and ultimately ensure the desired orientation.

Furthermore, it is also advantageously provided that the tension is applied by a force effect at least approximately perpendicular to the strip of material.

This is advantageous in terms of achieving precise target alignment of web fragments.

Very particularly, during the application of a force, in particular a tensile force, the means used to apply a force or a tensile force are moved in a direction of movement angled to the direction of movement, preferably parallel to the direction of movement of the conveyor, or also in the direction of movement, preferably in the direction of movement Apply a component of motion to a strip of material parallel to the direction.

This ensures that the alignment is not carried out selectively only in a narrow area, but over a larger area running substantially parallel to the direction of movement, and also ensures that the alignment can be performed discontinuously or continuously during the movement process.

The movement of the means or moving components in the direction of movement is adapted to the conveying speed of the conveyor in order to prevent the material strip from corrugating. The web piece runs parallel to the direction of travel and any deviation from alignment is recognized by means of performing or monitoring said method, sensory or optically used for precise alignment of the web piece by the operation of technical means. It has a recognizable edge or outer edge or mark, line, or step.

In aspects of the equipment used, the above object is achieved by a device according to claim 21 .

The pattern pieces are preferably fed automatically by the upstream part of the apparatus or manually by an operator in the station. The conveyor is connected to or integrated into the station, and it is possible that the station itself is a conveyor for receiving the pattern pieces or alternatively the conveyor extends upstream from the in-feed station so that the pattern pieces are transported from or to the station. It is already positioned so that it can be transported through the station to an adjacent conveyor. The pattern pieces are transported through the device by a conveyor to the processing station.

A readjustment of the pattern pieces is generated by the check station and the calibration station to correct the alignment of the pattern pieces off target position by the device during transport or during transport before the pattern pieces are fed to a processing station where they are processed. This ensures a particularly good level of quality in the intermediate or final product.

The check station may be upstream from the calibration station, so the check step and subsequent calibration are performed first. Alternatively or additionally, a check station that checks the alignment of the processed pattern piece and generates a calibration specification or calibration value for subsequent pattern pieces in case of deviations may be downstream from the processing station.

The check station enables non-contact detection of the mark path, preferably sensory detection is performed by the naked eye or with suitable equipment. The alignment of the pattern pieces can be checked at the outer edge or pile edge of the fabric pieces, but since the edge can be detected by sensors, such an edge is not required, which is detected based on the patterns or similar marks. Because this can also be done. At the check station, the previously detected mark path is compared with the desired mark path, and a calibration value or calibration specification is determined.

A calibration value is provided while being checked by a person, who compares the mark path to the desired mark path and determines whether the calibration value is to be set, for example based on empirical values.

Alternatively, the comparison is performed and a calibration specification is generated by means of appropriate technical means for data processing.

Then, calibration of the alignment is performed by the calibration station using the calibration values or calibration specification to effect correct alignment of the pattern piece.

The processing station manufactures intermediate or final products of superior quality. The processing station may be, for example, a fastening device into which the pattern pieces are hemmed or stitched. However, any other processing steps may also be performed.

Preferably, the check station compares the detected mark path to a desired mark path, preferably stored in an electronic memory, and a detector for sensory detecting the path of the marks, evaluates the deviations and optionally provides a calibration specification having a processor coupled thereto for

The mark path detected by the detector is sent to a processor that performs a comparison with the desired mark path. A processor is for this purpose coupled to a memory in which at least one desired mark path is stored, the processor accesses data in the memory and compares the desired mark path with the mark path.

If there are deviations between the paths, the processor computes a calibration specification and makes it available. Then, the calibration specification is transmitted to the display panel and displayed. Alternatively, the calibration specification may be provided as a corresponding control signal and transmitted directly to the controller of the calibration station.

The detector has a camera or sensor unit equipped with at least one sensor.

The sensor unit or camera makes it possible to detect the mark path contactlessly.

Preferably, the sensor is an optical sensor or a sensor that performs distance measurements.

Optical sensors can be used to optically detect the mark path. For example, colors or patterns may be detected. However, the mark path in the form of different pile heights at the surface of the pattern piece may also be detectable. They can also be detected optically. Alternatively, these marks may also be detected by distance measurements. To achieve this, a sensor is provided which performs distance measurements, which detects the distance to pile tips.

Preferably, the sensor is an optical sensor and the light source faces the sensor unit or camera, and the pattern piece is between the sensor unit or camera and the light source while being transported through the device.

The light source is opposed to the sensor unit or camera projecting light through the pattern piece so that the sensor or camera can better identify the marks of the at least translucent pattern piece.

Preferably, the processor has a computer with memory and at least one desired mark path stored therein for comparison with the actual path of the marks.

Various desired mark paths may be stored in the computer, or new desired mark paths for new manufacturing lines may be subsequently programmed. They can then be selected according to the manufacturing line and used for comparison with the corresponding detected mark path.

The calibration station has a controller coupled to and controlled by the controller for inputting calibration values and optionally calibration specifications.

The calibration value determined by the operator or the calibration specification calculated by the processor may be manually input into a control element that transmits a control signal corresponding to the control device. The calibration station performs a calibration step of alignment according to the input.

Calibration may be effected, for example, by a suitable machine component, in which case the controller controls the machine component based on the calibration value or calibration specification so that the machine component performs calibration by appropriate mechanical action on the pattern piece. and ensure that the pattern pieces are correctly aligned.

Preferably, the device is coupled to the check station and has a display panel on which calibration specifications provided by the check station are displayed.

The display panel may be, for example, a monitor through which calibration specifications are displayed and later read for input into a control element. This enables manual correction of pattern piece alignment.

Alternatively or additionally, the check station is coupled to the calibration station for direct communication therewith and the calibration specifications are fed directly to the controller of the calibration station as computer-generated signals of the check station.

Accordingly, automatic calibration is performed without human intervention based on calibration specifications.

Furthermore, the present invention relates to at least one driven conveyor, in particular a conveyor with a machine frame for the web pieces with a conveyor belt, as well as a flexible web piece, in particular a fabric piece, which preferably consists of a supporting member for the conveyor. A device for aligning a surface area or an edge area of a, in particular a calibration station for precise alignment according to claim 21 , wherein it is possible for an area located near the surface area or edge area of the web piece to be conveyed in the direction of movement .

In order to ensure that the surface area or the edge area of the web piece in the form of a fabric piece is formed precisely in a simple way, an improvement is proposed.

In aspects of the equipment used for this purpose, the operation of clamping the web piece and at least approximately horizontal with the plane from a home position in which its functional component lies outside the plane spanned by the web piece. A device is proposed having at least one positioning means which can be moved into position, the positioning means being in particular for the purpose of carrying out the method according to any one of claims 12 or 18 to 20, in particular a conveyor It is moved transversely to the conveyor and transverse to the direction of movement during the adjustment motion when in the working position, entraining the area of the web piece adjacent to the

The positioning means is moved from the open home position to the working position for clamping the web piece. The positioning means then move transversely to the direction of travel while entraining the area of the web piece and apply a force thereon until the web piece is moved to the target alignment.

Preferably, the device has positioning means on both sides of the conveyor.

This configuration enables alignment on both the left and right sides of the conveyor so that the balance is achieved by suitable forces acting on the edge area on one side and corresponding forces acting on the web piece on the other side, whereby the target alignment is achieved. results in precise alignment of web fragments in

In aspects of the equipment used for this purpose, an arrangement with a second conveyor spaced apart from the conveyor is alternatively proposed, the second conveyor being between the second and the first conveyor spanned by the area of the web piece. wherein the at least one positioning means, rigidly fastened to the frame, is capable of securing and transporting the edge region of the web piece leaving a gap, such a plane from a home position in which its functional component lies outside the plane spanned by the web piece. can be moved into an engaging working position via the positioning means, in particular being moved into the gap during a coordinating movement while accompanying the area of the web piece spanning the gap, the web piece in particular according to claim 13 or 20 For carrying out the method, the first conveyor is moved in a direction transverse to the direction of movement and in a direction transverse to the plane, the second conveyor being a pair of belts or conveyor belts having a counter-surface.

The web piece is held by the first and second conveyors and spans the holding edge regions or the material region between the material regions over a gap formed between the conveyors. In the event of deviations from the target alignment of the web piece, the positioning means can be moved or moved from the home position to an engaging working position through the plane spanned by the web piece, in particular accompanied by the area of the web piece spanning the gap. . The first conveyor allows movement of the web piece while the web piece is secured to the second conveyor so that the web piece is caused by pressure applied to the area relative to the first conveyor in a direction transverse to the direction of travel and transverse to the plane. moved and corrected to target alignment.

Preferably, the device has secondary conveyors on both sides of the conveyor and the positioning means.

This configuration enables alignment on both the left and right sides of the conveyor so that the balance is achieved by appropriate forces acting on the edge area on one side and corresponding forces acting on the web piece on the other side, whereby the target alignment is achieved. results in precise alignment of web fragments in

In aspects of the equipment used for this purpose, the alignment edge may be provided in the machine frame or in a separate device frame, or the support member may have an alignment edge or be set in an alignment position, wherein at least one positioning means is provided on the frame 15 , wherein the functional components thereof can be moved from a home position, preferably lying on this plane, to an engaging working position outside of the plane spanned by the web piece and via this plane, the positioning means being in particular according to claim 14 to 21 . For the purpose of carrying out the method according to claim 20 , in particular an adjustment movement transverse to the direction of travel and transverse to the plane passing the alignment edge, accompanying the area of the web piece adjacent to the conveyor. It is alternatively proposed to be moved while

By proper alignment of the alignment edges, which may also be formed by a strip of material or wire or the like, the necessary means to achieve alignment are provided. The support member itself may also have an alignment edge. If a positioning deviating from the target alignment occurs, the working position can be set by the positioning means, in which case the positioning means accompanies the corresponding area of the web piece and influences its alignment.

A portion of the web piece positioned near the surface area or edge area may be between or clamped between the support member and the conveyor.

The surface area or the edge area may be conveyed in a direction of movement parallel to the edge area. In particular, the support member has two protruding regions projecting above the conveyor on both sides transverse to the direction of movement and having an outer edge aligned with the direction of movement, preferably an outer edge adjacent to the conveyor and aligned parallel to the direction of movement. It has a recess in at least one of them or forms an outer edge preferably aligned parallel to the direction of movement, in which case each outer edge is an alignment edge.

Particularly preferably, the movable support is positioned, held or fixed to the machine frame or to the support member or next to the support member or below the contact plane of the support member for the web piece, at least of the positioning means relative to the movable support. A portion is set into a working position upon displacement by the interposition of an area of the web piece.

This facilitates the entrainment of the web piece upon activation of the positioning means, since the positioning means is presented to the counter-surface by means of a movable support and is between the positioning means and the movable support of the material strip.

It is also advantageous if the length of the displacement path of the positioning means from the home position to the working position can be adjusted for the purpose of precisely aligning the edge region of the web piece.

The support is fastened to the machine frame or support member in a resilient pivot manner.

In one possible variant, the positioning means are embodied as skids, rollers or rams at the free end facing towards the web piece.

In one possible variant, the positioning means is a driven roller or a belt drive with a roll or driven and at least one freewheeling roller or only freewheeling rollers.

Particularly preferably, the power rotary actuator is supported on a frame, on a mounting block as a coupling means, in particular a drive belt or actuator for a positioning means connected by toothed wheels or friction gears. and positioned to be secured to a drive shaft secured to the frame, the positioning means being retained to be pivotable relative to the drive shaft.

The positioning means may be moved by a servo drive held in the frame.

The positioning means is held in a pivotal manner on the frame portion and can be moved to a home position or a working position by a servo actuator.

Preferably, the device has respective supporting elements on both sides after the conveyor with projecting areas, optionally recesses and positioning means.

In order to improve the guiding of the web piece, the guiding element is preferably positioned obliquely downstream of the recess in the direction of movement transitioning endlessly to the projecting region.

In one possible variant, the positioning means can be moved intermittently from the home position to the working position and back.

Preferably, the positioning means comprises a rotating actuator, in particular a belt actuator, which is driven to cycle continuously at least at the beginning of the transition from the home position to the working position and continuously in the working position.

In addition, the actuator rotates coaxially to the direction of movement, in particular slightly angularly or preferably parallel to it. Preferably, the device in communication with a servo actuator for moving the positioning means from the home position to the working position comprises detection means for optical or sensory detection of an alignment of the web piece deviating from the target alignment, in particular. .

When the detecting means detects a deviation in the alignment of the web piece, a corresponding signal is supplied to the servo driver of the positioning means, and the positioning means is moved to the working position, whereby the alignment of the web piece is corrected to the target alignment.

The detection means is a sensor or a camera.

Embodiments of the methods according to the invention and of the apparatuses according to the invention are shown in the drawings and are described in more detail below.

1 is a schematic diagram of a method sequence;
2 is a schematic diagram of the device;
3 shows a first variant of the device.
4 shows a second variant of the device.
5 shows a third variant of the device.
6 shows a fourth variant of the device.
7 is a side view of another device;
8 is another device in a second functional position.
FIG. 9 is the device of FIG. 7 in a 180° rotated position.
10 is a cross-sectional view of the device in a first working position;
11 is a cross-sectional view of the device in a second working position;

1 shows a schematic diagram of a method for accurately positioning and processing a fabric or the like, in particular pattern pieces 1 , by means of the following method steps:

(3) mechanically or manually feeding the (pre)aligned and/or positioned pattern pieces (1) to the device (2) or to the station (9) of the device (2) (3);

Checking the alignment and/or positioning of the pattern piece, preferably by means of a sensor, preferably with reference to registration marks on the surface of the pattern piece or on the fabric of the pattern piece, the path of the mark being compared to the desired mark path, step (4) ,

determining calibration values or calibration specifications (5) and optionally providing calibration specifications for determining deviation of the mark path from the desired mark path; and

sending (6) calibration values or calibration specifications to calibration station (12);

correcting (7) manually or automatically for the alignment of the pattern piece (1) by the calibration station (12) in accordance with calibration values or calibration specifications such that the determined mark path coincides with the desired mark path, and/or

feeding (8) the pattern piece (1) in the direction of movement (23) to a processing station (13) for processing the pattern piece (1), preferably a fastening device in which the processing step is carried out, and

optionally repeating one or more steps.

The pattern piece 1 can be removed from a storage location or manually removed by an operator, for example, from an upstream part of the device. Then, the pattern piece 1 is manually aligned and/or positioned before the feeding step 3 to the station 9 by the operator, and then the operator manually transfers the pattern piece to the station 9 . transported or placed

Alternatively, the (pre)alignment or positioning of the pattern pieces 1 is carried out automatically, for example in an upstream part of the device, which is automatically delivered or fed to the station 9 after the pattern pieces have been (pre)aligned. it is possible to be

After step 3 , the pattern pieces 1 are fed to the station 9 , their alignment and/or positioning is checked at the check station 11 , and a calibration step 7 is performed at the calibration station 12 as required. performed according to For this purpose, the pattern piece 1 is transported by way of a conveyor 10 via the device 2 , the method steps preferably taking place during continuous or discontinuous movement of the pattern piece. The check step 4 and the calibration step 7 are particularly advantageous while the pattern pieces 1 are passing through the device, since the pattern pieces 1 can be displaced in particular during movement, the proofing step 7 being performed prior to processing. In order to correctly align the pattern pieces 1 it may be necessary before step 8 where they are fed to the processing station 13 for the implementation of the processing step. The continuous movement makes it possible to carry out the process particularly economically, which makes it possible to achieve speeds of 20 m per minute.

Alternatively, the check step 4 of the pattern piece 1 takes place only after processing at the processing station 13 . This method sequence is not shown in FIG. 1 . Deviations of marks from the desired mark path (eg, a seam created during processing to deviate from the target course) are detected after processing, and a calibration specification or calibration value is determined and transmitted to the calibration station 12 . The calibration station 12 then performs a corresponding calibration on the subsequent pattern pieces 1 so that the subsequent pattern pieces 1 are correctly aligned upstream of the feed 8 to the processing station 13 .

The checking step 4 is carried out in a non-contact manner, for example by optical detection of the marks of the pattern piece 1 . The marks are preferably optically detected on the surface of the pattern piece, for example in the form of a pattern or in the form of a fabric of a fabric, for example a course of yarn or in the form of stitches, seams or similar fabric marks. However, it is also possible that other detectors capable of detecting marks in a non-contact manner are also provided. It is also possible, for example, to detect marks in the form of different pile heights by means of distance measurements. To achieve this, a sensor may be provided which performs distance measurements, which detects the distance to the pile tips. If no deviations are found during the check step (4), then a corrective step (7) is not required and the process continues along the dotted line (Y), after the check step (4) the feeding step (8) to the processing station (13) ) is followed by Optical detection may be accomplished with the naked eye or by suitable optical devices. The optically detected mark path is compared with a predetermined desired mark path. This is also done by people or by a suitable processor 15 , preferably a data processor.

If detection and adjustment are performed by the operator's eye, the desired mark path can be marked, for example, on the conveying base or formed by the conveying base from which the pattern piece 1 is conveyed. However, any other suitable implementation is possible in which a person can visually compare the mark path to the desired mark path. The operator detects the deviation of the path of the pattern piece from the target path and determines a correction value. This can be determined by the operator on the basis of empirical values and transmitted to the calibration station 12 and preferably manually entered into a control element 20 coupled thereto such that a manual calibration step 7 is performed according to the calibration values. have. The optical detection is preferably effected by a camera or by a sensor unit 17 equipped with at least one sensor, wherein the pattern piece 1 is transported by a conveyor 10 past the sensor unit 17 or camera and The marks of the pattern piece 1 are optically detected. The sensor unit 17 or camera preferably detects the actual path of the deviation and the direction of the deviation so that the correct mark path is determined. As regards the direction, it is determined whether the deviation, for example, extends transversely to the direction of travel 23 from the left or the right. The path is also precisely detected, ie to what extent an aberration exists. The path may be determined in mm units, for example. These records can then be compared against the desired mark path to create an accurate calibration specification with the relevant dimensions.

The sensor unit 17 or camera communicates with the processor 15 , and the detected mark path is transmitted to the latter. The processor 15 preferably has a computer 19 and a memory 16 coupled thereto, in which at least one desired mark path to which the paths of marks are compared are stored. A plurality of different desired mark paths may be programmed and stored in memory 16 and selected according to product or manufacturing line for comparison.

In case of deviations, the computer 19 prepares a corresponding calibration specification and makes it available so that the calibration step 7 can be executed. Thereafter, the calibration step 7 occurs automatically by transmission of the calibration specification as a corresponding actuation signal to the calibration station 12, which automatically executes the calibration step 7 according to the calibration specification, so that no human intervention is required and the pattern A fully automatic correction (7) of the alignment of the pieces (1) takes place.

Alternatively, the calculated calibration specifications may also be displayed on a display panel 22 , which is a monitor, so that an operator can read these commands and enter them into a control element 20 connected to the calibration station 12 . Calibration specifications may be displayed, for example, in the form of numerical values or comparable representations and read by an operator. The control element 20 is preferably coupled to the calibration station 12 via its controller 21 , the controller 21 controlling the calibration station 12 according to an input to the control element 20 . A control element 20 and/or a display panel 22 can also be provided in the automatic calibration step 7 , in which control signals are provided as safety precautions, for example in case of failure of an automatic system or individual adjustment. It can route directly to the calibration station 12 .

The calibration station 12 then performs a calibration step 7 according to the calibration value or according to the calibration specification so that the actual and desired mark paths coincide.

The calibration step 7 can preferably be carried out by means of a step 6 transmitting the calibration values or calibration specifications to the controller 21 of a suitable mechanical component, in which case the controller 21 responds to the calibration values. Thus or according to calibration specifications, the mechanical components are controlled, the latter by appropriate mechanical action on the pattern piece 1 to perform the calibration step 7 and ensure that the pattern piece 1 is correctly aligned. Since the pattern piece 1 can slide in both directions transverse to the direction of movement 23 and a calibration step 7 in both directions is required, the calibration step 7 is It is carried out in both directions in the transverse direction to the Only then can accurate alignment be achieved. Such a readjustment of the actual mark path and thus of the pattern piece 1 makes it possible to precisely position the pattern piece 1 on the device 2 so that the pattern piece 1 can be precisely processed at the processing station 13 . By doing so, it is possible to manufacture particularly high-quality products. Preferably, therefore, the check step 4 and the calibration step 7 are carried out immediately before the processing step so that the pattern pieces 1 are fed in the correct alignment for processing.

The non-contact sensor check step 4 also makes it possible to align edgeless pattern pieces so that individual and precise alignment and positioning is based on patterns, or based on yarn courses or similar fabric marks. It can be performed only in (1). The processing of the pattern piece 1 may be performed in any desired manner; For example, a hem may be sewn or the pattern piece 1 may be folded. After processing, another check step (4) and a calibration step (7) can be performed, followed by further processing steps in which the pattern pieces must be precisely aligned, it is possible for the method steps to be repeated as many times as desired.

2 shows a schematic structure of an apparatus (2) for carrying out a method according to claim 1, said apparatus (2) comprising:

a station 9 from which the pattern pieces 1 are fed in a manually or mechanically (pre)aligned and/or positioned form;

a conveyor 10 connected to the station 9 and optionally starting upstream from the station 9 for displacing the pattern piece 1 through the device 2 ,

a check station 11 , in which the marks path of the marks of the pattern piece 1 can preferably be detected by means of a sensor and compared with the desired mark path and a calibration value or calibration specification can be generated or generated;

a calibration station 12 for precise alignment of the pattern pieces 1 according to calibration values or according to calibration specifications, and

It comprises a processing station 13 , preferably a fastening device, from which the pattern pieces 1 are precisely aligned and supplied in a processable form.

The pattern pieces 1 are preferably fed automatically in (pre)aligned form from the upstream part of the device or manually by an operator at the station 9 .

A conveyor 10 is connected to a station 9 , the station 9 itself being able to be a conveyor 10 on which the pattern pieces 1 are fed and optionally the conveyor 10 has already been positioned so that the station 9 By having the upstream end upstream from ), the pattern pieces 1 can be transferred from or via station 9 to an adjacent conveyor 10 .

Station 9 may also be, for example, any other station 9 for performing processing steps. By means of the conveyor 10 , the pattern pieces 1 are transported to the processing station 13 via the device 2 , via or via the check station 11 and the calibration station 12 . The check station 11 may alternatively be downstream from the processing station 13 not shown in the figure. The check step 4 takes place only after processing of the first pattern piece 1 in this case. If a deviation from the target course is detected, a calibration specification or calibration value is transmitted from the processing station 13 to an upstream calibration station 12 so that calibration of alignment occurs prior to processing.

The readjustment of the pattern piece 1 takes place at the check station 11 and the calibration station 12 so that the alignment of the pattern piece 1 displaced from the target position by the device 2 during transport or during movement is the pattern piece 1 . This intermediate or final product is calibrated before being fed to a processing station 13 . This ensures high quality, in particular of intermediate or final products.

3 shows a first variant of the device 2 . The check station 11 allows for non-contact detection of the mark path. For this purpose, the check station 11 has as detector 14 a camera or sensor unit 17 with at least one optical sensor. Accordingly, the moving pattern piece 1 can be detected. Since the edge is optically detectable, it is possible to detect an outer edge or a pile edge based on which alignment can be performed, but this is not absolutely necessary, as optical detection is based on any pattern or similar marks. because it can be done. Alternatively, marks may also be detected by distance measurements. To achieve this, a sensor is provided which performs distance measurements, which detects a gap to the pile tips. The processor 15 of the inspection station 11 coupled to the detector 14 then compares the detected mark path with the desired mark path and a calibration specification is determined (5). This is done by means of suitable technical means for data processing, and a computer 19 coupled to the memory 16 is used in this embodiment. The mark path detected by the camera or sensor unit 17 is transmitted to the processor 15 , more specifically to a computer 19 contained therein. The computer 19 then performs a comparison of the mark path with the desired mark path stored in the memory 16, with the various desired mark paths stored in the memory 16 or new desired mark paths being subsequent for the new manufacturing lines. It is possible to programmatically. Thereafter, they can be selected according to the manufacturing line and used for comparison with the corresponding detected mark path.

If the actual mark path deviates from the desired mark path, a calibration specification is calculated by the computer 19 . The calibration specification is passed by suitable technical means to the receiver of the calibration station 12 which performs the calibration step 7 in accordance with the calibration specification. For example, the calibration specifications are transmitted to the controller 21 of the calibration station 12 in the form of a control signal from the computer 19 . In this case, the check station 11 is coupled to the calibration station 12 for direct communication. Accordingly, an automatic and accurate calibration step 7 is performed based on calibration specifications and without human intervention.

The calibration step 7 can be executed, for example, by a suitable mechanical component, in which case the controller 21 controls the mechanical component based on the calibration specification, which is applied to the pattern piece 1 . Perform the calibration step (7) by appropriate mechanical action on the surface and ensure that the pattern pieces (1) are correctly aligned. If there is no deviation, the corrective step 7 does not occur. Then, the pattern pieces 1 are fed to the processing station 13 . The processing station 13 can be, for example, a fastening device into which the pattern pieces 1 are hemmed, glued or stitched. However, it may also be a device for folding the pattern pieces 1 or for performing any other processing aspect.

The processing station 13 produces intermediate or final products of good quality. A second variant of the device 2 is shown in FIG. 4 . Detection of the mark path and comparison with the desired mark path is performed at the check station 11 by the naked eye. The comparison is performed, for example, by indicating the desired mark path or by having the transport underlay used for comparison of the transport underlay in which the pattern piece 1 is transported from the desired mark path. The operator detects a deviation of the course of the pattern piece from the target course and determines a correction value. This calibration value is determined by the operator on the basis of the empirical values and can be transmitted to the calibration station 12 by manual input into a control element 20 coupled thereto so that a manual calibration 7 is performed according to the calibration value. . The calibration station 12 has a control element 20 for this purpose.

A third modification is shown in FIG. 5 . The detection and comparison are carried out in the inspection station 11 as in the first embodiment, ie by means of a detector 14 (eg a sensor) and a processor 15 , where the computer 19 of the processor 15 . is coupled to the display panel 22 , and the calculated calibration specifications displayed on the display panel 22 are transmitted to the computer 19 . The displayed calibration specifications are read out and manually entered into a control element 20 coupled to the calibration station 12 . The calibration station 12 has a controller 21 coupled to a control element 20 and is equally controlled according to the input. A fourth modification is shown in FIG. 6 . Here, the detection is carried out with the sensor of the sensor unit 17 opposite to the light source 18 . During movement through the device 2 , the pattern piece 1 is between the sensor unit 17 and the light source 18 and is illuminated by the light source 18 so that the sensor is, for example, a fabric of the fabric pieces 1 . Marks on the fabric can be detected better.

Both fabric pieces and pattern pieces made of any material that can be treated in the same way as fabric materials are treated by the method and apparatus. These include, for example, pattern pieces made of paper or plastic.

The device shown in FIGS. 7-11 preferably aligns the edge region of the flexible web piece 102 . Such a device can be used, for example, as a calibration station 12 for precise alignment in the device 2 . The web piece is in particular a piece of fabric separated from the fabric web and has a quasi-rectangular basic shape. The apparatus comprises a driven conveyor 105 , for example a conveyor belt and a conveyor with a marked machine frame 104 for web pieces 102 having a support member 106 for the conveyor 105 ( 103) is substantially composed of In this embodiment, the support member 106 is a plate. A web piece 102 is placed on this plate. A conveyor 105 in the form of a belt drive is placed on top of the web piece 102 so that the latter is pressed against the support member 106 . The support member 106 is preferably a flat, smooth plate. Preferably, the conveyor 105, which is the conveyor belt of the belt drive, is combined at the upper side with spring support blocks 107 that elastically bias the conveyor 105 towards the support member 106 . These support blocks 107 are held in a component of the machine frame 104 . The visible portion of the machine frame 104 is an L-shaped beveled piece of sheet metal, one leg of which extends parallel to the extension of the support member 106 while the other leg is perpendicular thereto. extend to

A portion of the web piece 102 located near the edge region 101 may also be clamped or held clamped between the support member 106 and the conveyor 105 and move parallel to the edge region 101 . It is conveyed by conveyor 105 in direction 108 . As can be clearly seen in Figs. 7 to 11, the edge region 101 is formed in a quasi wave shape to illustrate the alignment problem so that the edge region is not aligned exactly parallel to the direction of movement. Rather, it extends in different shapes and different distances from the conveyor 105 .

The support member 106 projects outwardly past the conveyor 105 on both sides in a direction transverse to the direction of movement. The protruding regions are indicated by reference numerals 109 and 110 . In this embodiment, recesses 111 , 112 with outer edges 113 , 114 extending parallel to direction of travel 108 are provided in both projecting areas 109 , 110 and on each conveyor 105 . adjacent to Alternatively, the outer edge 115 , 116 of each of the projecting regions 109 , 110 of the support member 106 may suitably be used, in which case this outer edge 115 , 116 also has a direction of movement It can be oriented parallel to (108). Furthermore, each positioning means 117 , 118 is in this embodiment above this plane, for example, that its functional components lie outside of the plane spanned by the gap between the support member 106 and the conveyor 105 , 7, 9 and 10 from the home position shown in FIGS. 8 and 11 to the working position shown in FIGS. 8 and 11 in which the positioning means are engaged through a plane and positioned with the component substantially below the projecting area 109 or 110 . It is fastened indirectly to the machine frame 104 on each of the movable outer edges 113 or 114 or possibly also on the outer edge 115 or 116 .

The positioning means 117 or 118 are moved transversely to the direction of movement 108 and transverse to the aforementioned plane, in particular following the conveyor 105 , as is specifically made clear in FIGS. 8 and 11 . It passes the outer edge 113 or 114 or 115 , 116 at a relatively close distance therefrom while accompanying the area of the web piece 102 located on the . Depending on the desired orientation, the edge region 101 or the edge region 101a which lies beyond the conveyor 105 can thus be aligned with the positioning means 117 or 118 . When the positioning means 117 moves from the position according to FIG. 7 to the position according to FIG. 8 , or from the position according to FIG. 10 to the position according to FIG. 11 , to align the course of the edge region 101 exactly as desired. A lateral force is applied to a corresponding edge region 101 or region 101a of the web piece 102 in engagement with the positioning means 117 , 118 to move the region of the web piece 102 away from the conveyor 103 .

In order to achieve reliable entrainment of the web piece 102 , in particular the edge of the web piece 102 , during movement of the positioning means 117 , 118 from the home position to the working position, the pivot support 119 is a support member In the path of displacement of the positioning means 117 , 118 on 106 , in particular during movement to the working position, a portion of the positioning means 117 , 118 is pressed to move, for example as can be seen in FIG. 8 . It is retained in the vicinity of the recesses 111 , 112 on the front outer edges of these recesses in a direction of movement that presses the support downward in a direction transverse to the direction. The intervening edge region 101 of the web piece 102 is held between the positioning means 117 , 118 and the support 119 , such that the desired motion of the edge region 101 is moved as is particularly clearly made in FIG. 11 . It occurs transverse to direction 108 . For the purpose of precise alignment of the edge regions 101 , 101a of the web piece 102 the length of the displacement path from the home position of the positioning means 117 , 118 to the working position can be adjusted by the operator, for example For example, a greater or lesser displacement is shifted depending on the deviation of the outer edge of the edge region 101 , 101a from the desired position.

In particular, the support 119 is fastened to the support member 106 in the direction of movement 108 in a resiliently movable manner, in particular to the front edges of the recesses 111 , 112 .

This ensures that the support 119 is automatically moved during the displacement of the positioning means 117 , 118 to follow the displacement path.

The figure does not show that the positioning means 117 , 118 are implemented at their free end towards the web piece 102 as skids, rollers or rams. This is one possible design. However, in this case, the actuation of the positioning means, ie the movement of the positioning means from the home position to the working position, causes the respective edge regions 101 , 101a located below the positioning means to move the web piece in the direction of movement 108 . It should occur intermittently so that 102 can be properly pulled by the positioning means during movement to achieve accurate alignment.

It is advantageously provided herein that the positioning means is a belt drive (120, 121) with a driven roller (122) and a freewheeling roller (123) on which the belt of the belt drive (120 or 121) circulates and moves. do.

As a drive for the driven roller 122 of the positioning means 117 , 118 , a motorized rotary drive 124 comprises frame parts, for example coupling means 125 (in this embodiment) It is held and secured to the parts of the machine frame 104 connected to the drive shaft 126 via the drive belt of the For this purpose, the drive shaft 126 also has rollers 127 rigidly connected to the shaft. The drive shaft 126 is supported and guided in a mounting block 128 , which in turn is rigidly fixed to the parts of the machine frame 104 . The drive shaft 126 is rigidly connected to the driven rollers 122 of the two positioning means 117 , 118 so that the belt drive 120 , 121 is set to move by rotation of the drive shaft 126 . The direction of rotation of the coupling means 125 (drive belt) is indicated by 129 . Also, the positioning means 117 , 118 can be moved by a servo driver 130 fastened to the machine frame 104 . For this purpose, the servo drive 130 consists, for example, of an electric motor 131 which can be set to run alternately from side to side in a limited manner. Via the output shaft 132 , a support disk 133 is rotated in a clockwise or counterclockwise limited manner about an axis formed by the output shaft 132 . The components 138 , 139 of the positioning means 117 , 118 are connected via coupling rods 134 , 135 and connecting rods 136 , 137 to the drive shaft 126 on this support. It can be rotated around. Rotating the support 133 in one direction (eg clockwise) by the actuator 131 moves the positioning means 117 to the working position, in which the entire element with the belt actuator is, for example, , as shown in FIG. 11 , the freewheeling roller 123 is pivoted from the home position to the working position to be displaced downward. As a result of this movement of the support 133 , the positioning means 118 located on the other side is raised. When the support 133 is rotated in the opposite direction, the positioning means 117 is raised while the positioning means 118 is similarly lowered as a result of the freewheeling roller 123 being moved downward. This arrangement ensures that the two positioning means 117 , 118 cannot act simultaneously on the web piece, but rather act only on the respective selected positioning means 117 , 118 as determined by the user.

In order to achieve perfect guidance of the edge regions 101 , 101a of the web piece 102 in the direction of travel 108 even after passing through the recesses 111 , 112 , each obliquely positioned guide member 140 is moved It is located downstream of these recesses 111 , 112 which transition endlessly to the subsequent region of the projecting region 109 or 110 of the support member 106 in the direction.

In this embodiment, the positioning means 117 , 118 are formed by actuators circulating in the direction of movement 108 , in particular belt actuators 120 , 121 , wherein at least the corresponding positioning means are in the home position. It is driven to cycle continuously in the working position as it is moved from the to the working position. In this way, the processing of the edge regions 101 , 101a is performed in order to achieve accurate alignment of the edge regions 101 or 101a, in response to the moving direction and the moving speed of the web piece 102 .

The position of deviation of the edge regions 101 , 101a from the target position can be detected visually by the operator, thereby enabling the operator to actuate the corresponding device in a specific manner. However, it will also be considered that the edge region 101 , 101a or its outer edge is detected by means of suitable detectors at the sides of its position and the positioning means 117 , 118 actuated in a particular way by means of suitable machine controls. can and make it possible.

The device shown in FIGS. 7 to 11 is suitable and intended to enable a method of aligning a web piece 102 , in particular an edge region 101 , 101a of a fabric piece, to be practiced. The web piece 102 in the vicinity of the edge region 101 , 101a is transported for this purpose by a conveyor, for example a conveyor 105 , in a direction of movement 108 parallel to the edge region. The web piece is pressed by the driven conveyor 105 of the conveyor 103 against the supporting member 106 of the conveyor 103 and conveyed along the supporting member 106 in the direction of movement. As can be readily understood, the described device and procedure are provided on both sides of the web piece 102 so that corresponding devices can be positioned and installed in both edge regions. The web piece can hang down freely between the parts of the device on either side, for example by forming a loop.

As indicated, the support member 106 projects above the conveyor 105 on both sides transverse to the direction of travel 108 . Recesses 111 , 112 located below corresponding areas of the web piece 102 are provided in two projecting areas 109 , 110 . If the alignment of the web piece 102 deviates from the correct target alignment of the web piece 102 , ie if its edge region 101 or 101a extends to be pulled closer towards the conveyor 105 , the incorrect alignment of the web piece 102 . The closely aligned portions or edge regions 101 , 101a are recesses adjacent the conveyor 105 running parallel to or over the edge of the support member 106 running parallel to the direction of travel 108 and running parallel to the direction of travel 108 . Deviating alignment of the web piece 102 by being pulled over the edge region of 111 , 112 and pulled from the conveyor 105 by an appropriate amount transverse to the direction of travel 108 and transverse to the conveyor 105 is improved. Calibrated to correct target alignment.

The traction force acting on the strip of material in the vicinity of the corresponding positioning means 117 , 118 is applied by a normal force so that good force transmission and alignment are achieved. While the tensioning force is being applied, the means for applying the tensioning force is preferably moved parallel to the direction of travel 108 of the conveyor 105 or also applies a motion component to the strip of material parallel to the direction of travel to distort the web piece. to prevent The movement of the means parallel to the direction of movement 108 or the component of motion is adapted to the speed of the conveyor 105 in order to achieve a trouble-free action on the material strip, in particular to avoid puckering. To facilitate alignment, the web piece 102 may have a visually recognizable edge or outer edge or mark, line or step running parallel to the direction of travel so that an alignment that deviates from the target alignment performs or monitors an alignment method. A deviation from alignment by the means is recognized, and the web piece is precisely aligned to the target alignment by actuation of the technical means. The monitoring means may be the human eye or may also be electrical, electronic or other detection means.

The use of specific devices and specific methods provides an excellent way to properly align the edge regions of the flexible web piece according to the intended purpose so that subsequent operations such as formation of the hem and stitching of the hem may be mechanically followed later. In particular, the alignment is performed during normal operation of the conveyor 103, so that accurate alignment can be performed during normal movement. The present invention is not limited to the embodiments, but rather may be varied in many respects within the scope of the present disclosure.

1: Pattern engraving
2: device
3: Machine or manual feed
4: check
5: Determination of calibration values
6: Send
7: Calibration
8: supply of pattern pieces
9: Station
10: conveyor
11: check station
12: calibration station
13: processing station
14: detector
15: processor
16: memory
17: sensor unit
18: light source
19: computer
20: control element
21: controller
22: display panel
23: direction of movement
101: edge area
101a: edge area
102: web fragment
103: conveyor
104: machine frame
105: conveyor
106: support member
107: support block
108: direction of movement
109: 106 overhang area
110: 106 overhang area
111: concave
112: concave
113: outer edge of 111
114: 112 outer edge
115: 109 outer edge
116: 110 outer edge
117: positioning means
118: positioning means
119: support
120: belt drive
121: belt drive
122: driven roller
123: freewheeling roller
124: rotation actuator
125: coupling means
126: drive shaft
127: roller
128: mounting block
129:25 cycle direction
130: servo driver
131: actuator
132: drive shaft
133: support
134: coupling rods
135: coupling rods
136: connecting rod
137: connecting rod
138: 117, 118 components
139: 117, 118 components
140: no guide

Claims (54)

textile or pattern pieces; 1) as a method of positioning and processing precisely,
Feeding (pre)aligned, positioned, or (pre)aligned and positioned pattern pieces 1 to the device 2 , or to a station 9 of the device 2 mechanically or manually step (3),
of the pattern piece 1 with reference to registration marks on the pattern piece 1 , on the surface of the pattern piece 1 , or on the fabric of the pattern piece 1 , which are detected by a sensor checking one or more of alignment and positioning, and comparing the path of the marks to the desired mark path (4);
determining calibration values or calibration specifications and providing the calibration specification when determining the deviation of the path of the marks from the desired mark path (5);
sending (6) calibration values or calibration specifications to calibration station (12);
correcting (7) the alignment of the pattern piece (1) manually or automatically by the calibration station (12) according to the calibration values or calibration specification so that the determined mark path coincides with the desired mark path, and
feeding (8) the pattern piece (1) in the direction of movement (23) to a processing station (13) for processing the pattern piece (1), or a fastening device, in which the processing step is carried out, and
repeating one or more of the above steps;
The steps of the method take place during continuous or discontinuous movement of the pattern piece 1 ,
A method of precisely positioning and processing pieces of fabric or pattern. A method for precisely positioning and processing pieces of fabric or pattern (1), comprising:
mechanically or manually feeding the (pre)aligned, positioned or (pre)aligned and positioned first pattern piece (1) to the device (2), or to a station (9) of the device (2); (3),
feeding (8) the first pattern piece (1) in the direction of movement (23) to a processing station (13) for processing the pattern piece (1), or a fastening device, in which the processing step is carried out;
During alignment and positioning of the processed pattern piece 1 with reference to registration marks on the pattern piece 1 , on the surface of the pattern piece 1 , or on the fabric of the pattern piece 1 , which are detected by a sensor (4) checking one or more and comparing the path of the marks to the desired mark path;
determining calibration values or calibration specifications and providing the calibration specification when determining the deviation of the path of the marks from the desired mark path (5);
sending (6) calibration values or calibration specifications to calibration station (12);
correcting (7) manually or automatically the alignment of the subsequent pattern pieces (1) by the calibration station (12) according to the calibration values or calibration specifications so that the determined mark path coincides with the desired mark path, and
characterized in that it comprises repeating one or more of said steps,
A method of precisely positioning and processing pieces of fabric or pattern. 3. The method of claim 2,
characterized in that the steps of the method take place during continuous or discontinuous movement of the pattern piece (1),
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
characterized in that the calibrating step (7) is carried out immediately before the feeding step (8) for the processing and implementation of the processing step,
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
A sensor unit 17 equipped with at least one sensor or camera detects the marks on the pattern piece 1, said sensor unit 17 or camera, in fact, converts the detected mark path into a computer ( Comparing with the desired mark path stored in the memory 16 of the computer 19 and providing calibration specifications for automatic or manual calibration 7 in case of deviations, characterized in that communication with the computer 19 to do,
A method of precisely positioning and processing pieces of fabric or pattern. 6. The method of claim 5,
characterized in that the sensor unit (17) or the camera detects the actual path of the deviation and the direction of the deviation,
A method of precisely positioning and processing pieces of fabric or pattern. 6. The method of claim 5,
The sensor is characterized in that it detects the distance to the marks on the surface of the pattern piece,
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
characterized in that the calibration values and optionally the calibration specification are manually entered into the control element (20) and the alignment is corrected (7) according to the input.
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
wherein at least one of the deviations and the calibration specification is displayed on a display panel (22).
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
characterized in that the calibration specification is transmitted directly to the calibration station (12) which automatically carries out the calibration (7) according to the calibration specification,
A method of precisely positioning and processing pieces of fabric or pattern. 4. The method according to any one of claims 1 to 3,
characterized in that the calibration (7) is carried out transverse to the direction of travel (23) in both directions,
A method of precisely positioning and processing pieces of fabric or pattern. A method of aligning a flexible web piece (102), or a surface area or edge area (101, 101a) of a piece of fabric, comprising:
The flexible web piece (102) is conveyed by a conveyor (103) in a direction of travel (108) at least near the surface area or edge area (101, 101a), and the conveyor (103) against a supporting member of the conveyor (103). Pressurized by the driven conveyor 105 of the and conveyed along the support member 106,
If the alignment of the flexible web piece 102 deviates further from the target alignment of the web piece 102 towards the conveyor 105, the incorrectly aligned portion or edge regions 101, 101a of the web piece 102 will moved away from the conveyor 105 by an appropriate amount by a tensile force transverse to a direction of travel 108 acting toward or parallel to the plane spanned by the web piece 102 , ) characterized in that the deviation alignment is corrected to the target alignment,
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. A method of aligning a flexible web piece (102), or a surface area or edge area (101, 101a) of a piece of fabric, comprising:
The flexible web piece (102) is conveyed by a conveyor (103) in a direction of travel (108) at least near the surface area or edge area (101, 101a), and the conveyor (103) against a supporting member of the conveyor (103). Pressurized by the driven conveyor 105 of the and transported along the support member 106,
The edge regions 101 , 101a of the flexible web piece are secured to at least one second conveyor spaced apart from the conveyor 103 and formed into a gap and conveyed integrally, wherein the alignment of the web piece 102 is the web piece ( Upon further deviation towards the first conveyor 105 from the target alignment of 102 , the at least one actuator exerts a compressive force on the area of the fabric strip spanning the gap, so that the fabric strip moves transverse to the direction of movement 108 . and moving away from the first conveyor (105) by an appropriate amount in a direction transverse to the first conveyor (105), so that the deviating alignment of the web piece (102) is corrected to the target alignment.
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. A method of aligning a flexible web piece (102), or a surface area or edge area (101, 101a) of a piece of fabric, comprising:
The flexible web piece (102) is conveyed by a conveyor (103) in a direction of travel (108) at least near the surface area or edge area (101, 101a), and the conveyor (103) against a supporting member of the conveyor (103). Pressurized by the driven conveyor 105 of the and transported along the support member 106,
The conveyor 103 or a machine component associated with the conveyor 103 has an alignment edge, or the support member 106 forms an alignment edge set in an alignment position so that the alignment of the web piece 102 is ) further towards the conveyor 105 from the target alignment of the web piece 102 , the incorrectly aligned portions or edge regions 101 , 101a of the web piece 102 are pulled over the alignment edges transverse to the direction of travel 108 and characterized in that the deviating alignment of the web piece (102) is corrected to the target alignment by being moved away from the conveyor (105) by an appropriate amount transverse to the conveyor (105).
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method according to any one of claims 12 to 14,
wherein the flexible web piece (102) is conveyed by a conveyor (103) in a direction of travel (108) parallel to the edge area (101, 101a) at least in the surface area or near the edge area (101, 101a);
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method of claim 14,
The support member 106 has at least one recess 111 , 112 or one alignment edge 113 , 114 such that the alignment of the web piece 102 is shifted from the target alignment of the web piece 102 to the conveyor 105 . . ) is pulled over the alignment edge of the recess adjacent to ) and moved away from the conveyor 105 by an appropriate amount transverse to the direction of travel 108 and transverse to the direction of travel 108 , thereby causing the deviation of the web piece 102 . characterized in that the alignment is corrected to the target alignment,
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method of claim 14,
characterized in that the alignment edge extends parallel to the direction of movement (108).
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method of claim 14,
characterized in that traction is applied by a force effect oriented perpendicular to the web piece (102).
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method of claim 12 or 14,
During the application of a force, or tensile force, the means used to apply the force or tensile force is moved in the direction of movement at an angle to the direction of movement, or is moved parallel to the direction of movement 108 of the conveyor 105 , or also applying a motion component to the web piece (102) in the direction of movement (108).
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 20. The method of claim 19,
characterized in that the motion or the component of motion of the means in the direction of travel (108) is adapted to the conveying speed of the conveyor (105) in order to prevent the web piece from wrinkling.
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. 15. The method according to any one of claims 12 to 14,
The web piece 102 has a sensory or optically recognizable edge or outer edge or mark, line or step running parallel to the direction of travel 108 and is not aligned by means of performing or monitoring the method. It is recognized and characterized in that it is used for precise alignment of the web piece (102) by the operation of technical means,
A method of aligning a surface area or edge area of a flexible web piece or fabric piece. A device (2) for precisely positioning and processing pieces of fabric or pattern (1) during continuous or discontinuous movement, comprising:
a station 9 from which the pattern pieces are supplied in (pre)aligned, positioned or (pre)aligned and positioned form manually or mechanically;
a conveyor 10 connected to the station 9 and optionally started upstream from the station 9 for displacing the pattern piece 1 through the device 2 ,
The path of registration marks on the pattern piece 1 , on the surface of the pattern piece 1 , or on the fabric of the pattern piece 1 can be detected by a sensor and compared with a desired mark path, said registration mark One or more of the alignment and positioning of the pattern piece 1 can be checked with reference to a calibration value or calibration specification that can be provided when determining the deviation of the path of the registration marks from the desired mark path, or A checking station 11 , which may be created,
a calibration station 12 for manual or automatic precise calibration of the alignment of the pattern piece 1 according to a received calibration value or according to a received calibration specification, so that the determined mark path coincides with the desired mark path, and
a processing station (13) or fastening device for processing the pattern piece (1), in which the pattern piece (1) is fed in a direction of movement (23) in an aligned and processable form, the processing step being carried out,
one or more of the processes performed at the station (9), conveyor (10), check station (11), calibration station (12) and processing station (13) may be repeated;
A device for precisely positioning and processing pieces of fabric or pattern. 23. The method of claim 22,
The check station 11 includes a detector 14 for sensory detection of the path of the marks and a comparison of the detected mark path with the desired mark path stored in the electronic memory 16 and to evaluate deviations and optionally a calibration specification. characterized by having a processor (15) coupled thereto to provide
A device for precisely positioning and processing pieces of fabric or pattern. 24. The method of claim 23,
characterized in that the detector (14) has a camera or sensor unit (17) equipped with at least one sensor,
A device for precisely positioning and processing pieces of fabric or pattern. 25. The method of claim 24,
characterized in that the sensor is an optical sensor or a sensor that performs distance measurements,
A device for precisely positioning and processing pieces of fabric or pattern. 25. The method of claim 24,
The sensor is an optical sensor, and the light source 18 is opposite the sensor unit 17 or camera and, while being transported through the device 2 , the pattern piece 1 is connected to the sensor unit 17 or the camera and the light source. (18) characterized in that between
A device for precisely positioning and processing pieces of fabric or pattern. 27. The method according to any one of claims 23 to 26,
characterized in that the processor (15) has a memory (16) and a computer (19) with at least one desired mark path stored therein for comparison with the path of marks,
A device for precisely positioning and processing pieces of fabric or pattern. 27. The method according to any one of claims 22 to 26,
characterized in that the calibration station (12) has a controller coupled with a control element (20) for inputting calibration values and optionally calibration specifications and is controlled by a controller (21).
A device for precisely positioning and processing pieces of fabric or pattern. 27. The method according to any one of claims 22 to 26,
The device (2) is characterized in that it has a display panel (22) coupled to the check station (11) and on which calibration specifications provided by the check station (11) are displayed.
A device for precisely positioning and processing pieces of fabric or pattern. 27. The method according to any one of claims 22 to 26,
The check station 11 is coupled to the calibration station 12 for direct communication with the calibration station 12 , wherein the calibration specifications are communicated to the calibration station by a signal generated by a computer 19 of the check station 11 . (12) characterized in that it is fed directly to the controller (21),
A device for precisely positioning and processing pieces of fabric or pattern. A device for aligning a surface area or edge area (101, 101a) of a flexible web piece (2) or a fabric piece, comprising:
At least one driven conveyor 105 or conveyor 103 with a machine frame 104 for the web pieces 102 with a conveyor belt, as well as a support member for the conveyor 105 ( 106), so that the surface area or the area located near the edge area 101, 101a of the web piece 102 is transported in the direction of movement 108,
The device can be moved from a home position in which its functional components lie outside the plane spanned by the web piece 102 to a working position that is flush with the plane and clamps the web piece. at least one positioning means (117, 118);
The positioning means 117 , 118 adjusted to the working position then move transversely to the direction of travel 108 entraining the area of the web pieces 102 , applying a force on the web piece 102 until 102 is moved to the target alignment;
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 32. The method of claim 31,
The device is characterized in that it has positioning means (117, 118) on both sides of the conveyor (103).
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. A device for aligning a surface area or edge area (101, 101a) of a flexible web piece (2) or a fabric piece, comprising:
at least one driven conveyor (105), or a conveyor (103) with a machine frame (104) for the web pieces (102) with a conveyor belt, as well as a support member (106) for the conveyor (105), It is possible for a surface area or an area located near the edge area 101 , 101a of the web piece 102 to be transported in the direction of movement 108 ,
The device has at least one second conveyor with a second conveyor spaced apart from the conveyor 103 , by means of which the edge region of the web piece can be fixed and conveyed, the There is a gap between the first conveyor 105 and the second conveyor spanned by the region, the device being rigidly fastened to the frame and positioned outside the plane spanned by the web piece 102 to its functional components. at least one positioning means (117, 118) movable through said plane to an engaging working position, said positioning means (117, 118) adjusting while entraining the area of the web piece spanning said gap characterized in that during movement the web piece is moved relative to the first conveyor in a direction transverse to the direction of travel (108) and transverse to the plane.
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 34. The method of claim 33,
wherein the second conveyor is a pair of belts or a conveyor belt having counter-surfaces,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 35. The method of claim 34,
The device is characterized in that it has second conveyors and positioning means (117, 118) on both sides of the conveyor (103).
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. A device for aligning a flexible web piece (2), or a surface area or edge area (101, 101a) of a fabric piece, comprising:
at least one driven conveyor (105), or a conveyor (103) with a machine frame (104) for the web pieces (102) with a conveyor belt, as well as a support member (106) for the conveyor (105), It is possible for a surface area or an area located near the edge area 101 , 101a of the web piece 102 to be transported in the direction of movement 108 ,
An alignment edge may be provided on the machine frame 104 or a separate device frame, or the support member 106 may have an alignment edge or be set in an alignment position, wherein the at least one positioning means 117 , 118 comprises: Outside of the plane fastened to the frame and spanned by the web piece 102 , its functional components can be moved from a home position overlying the plane to an engaging working position through the plane, the positioning means 117 . , 118 traveling during a steering motion transverse to the direction of travel 108 and transverse to the plane past the alignment edge while accompanying the area of the web piece 102 adjacent the conveyor 105. characterized in that
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
The area of the web piece located near the surface area or edge area 101 , 101a may be clamped between the support member 106 and the conveyor 105 or between the support member 106 and the conveyor 105 . characterized,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
characterized in that the surface area or edge area (101, 101a) can be transported in a direction of movement parallel to the edge area,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 36,
The support member 106 projects over the conveyor 105 on both sides transverse to the direction of travel 108 and has two projecting regions 109 with an outer edge aligned with respect to the direction of travel 108 . , 110) having recesses (111, 112) in at least one or forming an outer edge aligned parallel to the direction of movement (108), in which case each outer edge is an alignment edge ,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 31 or 36,
The movable support 119 is positioned on the machine frame 104 , on the support member 106 , next to the support member 106 , or below the contact surface of the support member 106 for the web piece 102 , or Retained or fixed, abutting the movable support (119), characterized in that at least a portion of the positioning means (117, 118) is disposed when displaced into the working position with the interposition of the area of the web piece (102). ,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
characterized in that the length of the displacement path of the positioning means (117, 118) from the home position to the working position can be adjusted for the purpose of precisely aligning the edge region of the web piece (102).
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 41. The method of claim 40,
The support (119) is characterized in that it is fastened to the machine frame (104) or the support member (106) in a resilient pivoting manner.
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
characterized in that the positioning means (117, 118) are embodied at their free end towards the web piece (102) as a skid, roller or ram,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
Said positioning means 117 , 118 is a driven roller, a roll, or driven and at least one freewheeling roller 122 , 123 or freewheeling rollers 122 , 123 . Characterized in that it is a belt drive (120, 121) equipped with a bay,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 36,
The electric rotary actuator 124 comprises positioning means supported by a mounting block 128 and connected by coupling means 125 to a drive shaft 126 fixed to the frame ( A actuator for (117, 118), positioned to be fixed to a frame, said positioning means (117, 118) being held so as to be pivotable about a drive shaft,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
characterized in that the positioning means (117, 118) can be moved by a servo driver (130) carried on a frame (104),
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 47. The method of claim 46,
characterized in that the positioning means (117, 118) are held in a pivotal manner on the frame part and can be moved to a home or working position by means of a servo drive (130).
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 36,
The device comprises a respective support member 106 on both sides next to a conveyor 103 with projecting areas 109 , 110 , optionally recesses 111 , 112 and positioning means 117 , 118 . characterized by having
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 36,
characterized in that the guide member (140) is positioned obliquely downstream of the recess (111, 112) in the direction of movement steplessly transitioning to the protruding area (109, 110);
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
characterized in that the positioning means can be moved intermittently from the home position to the working position and vice versa.
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method of claim 36,
characterized in that the positioning means (117, 118) comprise a rotary actuator driven to cycle continuously at least at the beginning of the transition from the home position to the working position and continuously in the working position,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 50. The method of claim 49,
The actuator is characterized in that it rotates in the same direction as the direction of movement (108), at a slight angle thereto or parallel thereto.
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 37. The method according to any one of claims 31 to 36,
The device comprises detection means for optical or sensory detection of an alignment of the web piece deviating from the target alignment and is in communication with a servo driver for moving the positioning means (117, 118) from the home position to the working position. to do,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece. 54. The method of claim 53,
The detection means is characterized in that the sensor or camera,
A device for aligning a surface area or edge area of a flexible web piece or fabric piece.

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