CN111926551A

CN111926551A - Fabric correcting module, fabric correcting mechanism and fabric correcting method

Info

Publication number: CN111926551A
Application number: CN202010858827.1A
Authority: CN
Inventors: 顾金华; 顾丽娟
Original assignee: Changzhou Hongda Electric Co ltd
Current assignee: Changzhou Hongda Electric Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2020-11-13

Abstract

The invention relates to the technical field of fabric correction, in particular to a fabric correction module, a fabric correction mechanism and a fabric correction method. A fabric correcting module disposed in a path of travel of a fabric, at least one lateral side of the fabric disposed the fabric correcting module, the fabric correcting module comprising: a roller having a frictional outer circumferential surface that comes into contact with the fabric; the driving module drives the roller to rotate, and the roller rotates along the conveying direction to adjust the traveling speed of the fabric in the width direction. The technical problems of complex structure, long adjusting stroke, poor weft yarn correcting effect and limited application range of the weft yarn straightening device in the prior art are solved.

Description

Fabric correcting module, fabric correcting mechanism and fabric correcting method

Technical Field

The invention relates to the technical field of fabric correction, in particular to a fabric correction module, a fabric correction mechanism and a fabric correction method.

Background

In weaving and finishing processes of the fabrics, problems of skew, warp, skew pattern, warp pattern and the like are frequently generated due to the influence of equipment precision errors, various mechanical movements and manual operation, wherein the skew is a skew state formed by a weft yarn or a knitted fabric row deviating from a straight line vertical to a warp yarn or a wale of the fabrics, the warp (bow weft) is a state that the weft yarn or the knitted fabric row deviates from a straight line vertical to the warp yarn or the wale of the fabrics and forms one or more arc skew states in the width direction of the fabrics, and the weft yarn refers to the weft yarn or the knitted fabric row of the woven fabrics. The problems can influence subsequent processing, so that the quality of finished fabrics is influenced, and the use value of textiles is reduced. Therefore, the weft yarn distortion needs to be corrected by using the weft straightening device.

The existing weft straightening device mainly comprises a pinwheel weft straightening device and a roller weft straightening device.

The pinwheel weft straightening device is a passive weft straightening device, two sides of the fabric needing weft straightening in the radial direction are nailed on the outer circumferential surfaces of a left pinwheel and a right pinwheel, and the pinwheels are in a completely free rotating state. In the process of rotation of the pinwheel, the splayed arrangement of the two pinwheels provides warp and weft component forces for the fabric, the weft component force corrects weft bending of the fabric, the warp component force provides a rotation moment for the pinwheel, so that the pinwheel at the lag end of the skewing is accelerated, and the pinwheel at the leading end of the skewing is decelerated, thereby correcting the skewing of the fabric.

For a pinwheel weft straightening device, the pinwheel weft straightening device has a certain weft straightening effect, but the pinwheel weft straightening device still has the following defects:

1. in order to improve the weft straightening effect of the fabric, the inclination of a pin wheel is required to be increased, and the fabric expanding amount is increased, but the problems are that the edge breaking, the too large pin hole, the printing white edge and the like are caused by the too large expanding of the pin wheel; moreover, the after-finishing process of some fabrics needs to control the spreading of the fabrics, which is opposite to the fact that the widening of the fabrics needs to be increased in the pin wheel weft straightening, so that the weft straightening effect is limited by the maximum allowable spreading of the fabrics.

2. The key of the pin wheel weft straightening is that the warp direction of the fabric is required to be kept in a loose state, if the warp direction tension of the fabric is too large, the speed difference between two pin wheels is reduced, the weft straightening effect is extremely poor, loose cloth feeding is required, and the problem brought by the loose cloth feeding is that the fabric is easy to deckle, and the fabric is broken by deckle from the pin wheels. The edge suction device can be installed for preventing edge dropping, but the installation of the edge suction device can cause the warp tension of the fabric to be overlarge so as to greatly reduce the weft straightening effect, and the weft straightening effect is influenced by the warp tension of the fabric.

3. The pin wheel weft straightening is realized by recovering the internal force of the fabric, a certain time is required from the needle inserting wheel to the needle discharging wheel of the fabric, and the weft straightening effect of the pin wheel is limited by the running speed of the fabric. In addition, when the fabric is separated from the pinwheel, that is, when the fabric is separated from the needle, a certain weft bending is generated, and high-precision weft straightening cannot be realized.

4. The radial partial skewing of the fabric and the partial skewing with small inclination degree can not be corrected because the two pinwheels of the pinwheel weft straightening device are arranged in a splayed shape, and under the condition that the warp direction component force provided by the fabric to the pinwheels is too small, the rotating moment can not be provided for the pinwheels, so that the pinwheels at the lag end of the skewing are accelerated, and the pinwheels at the leading end of the skewing are decelerated.

5. The pinwheel weft straightening device has the advantages that the two pinwheels completely belong to driven bodies which can rotate freely, no driving power is provided, the rotating damping torque of the pinwheels is reduced, the weft straightening effect is improved, the processing and matching part precision of the pinwheels is very strict, the diameter of the pinwheels is usually larger than 500-1000 mm, the pinwheels are large in size, large in processing difficulty and high in manufacturing cost, needles of the pinwheels are easy to break when the pinwheels are sewn, when the pinwheels cannot be repaired, the whole pinwheels are scrapped, and the pinwheel weft straightening use and maintenance cost is high. The two sides of the fabric in the width direction are penetrated by the needles of the pinwheel to advance, and when the edges of the cloth are curled and the cloth is staggered in the width direction, the needles of the pinwheel are easy to deviate from the cloth edges to cause edge shedding; in addition, the needle wheel punctures fabrics, and the cloth cover is very easy to damage, moreover, some fabrics have sparse organizational structure, and the radial two sides of the fabrics can not be punctured by the needle of the needle wheel at all to advance, and the conditions all limit the application range of the needle wheel for weft straightening.

The roller type weft straightening device uses a plurality of correcting rollers, for example, a bending roller and a straight roller correct the fabric distortion by adjusting the fabric stroke, and the roller type weft straightening device is relatively complex in mechanical structure and relatively long in adjusting stroke due to the fact that the fabric needs to be adjusted by a plurality of correcting rollers, belongs to a system with large delay, is slow in response and is not beneficial to real-time control.

The roller type weft straightening device is used for straightening weft, if the width of a fabric is smaller than the working width of the straightening roller, the straightening efficiency is correspondingly reduced, moreover, the fabric enters the roller type weft straightening device and must be in a good centered state, otherwise, the bending roller can multiply increase the deformation degree, and the reaction is realized. For knitwear with large extensibility and easy deformation by external force, chiffon with loose structure and low elastic woven fabrics, the fabrics are easy to generate elasticity due to the structure and can still return to the original deformation state even after being straightened by a correcting roller.

In addition, when the fabric is in skewing/bending, the skewing/bending of the weft is improved by adjusting the angle of the correcting roller and increasing the path of the fabric at the skewing/bending part. For the inelastic fabric, after the angle of the correcting roller is adjusted, the full-width inward fabric does not completely cover the correcting roller any more, the fabric is suspended, and the skew/warp of weft can not be corrected at all, so that the inelastic fabric can not be used for weft straightening at all.

For high-elasticity fabrics, the straightening roller and the pin wheel do not have enough weft straightening strength, the corrected weft of the fabrics is easy to restore to the original shape, and both cannot effectively improve the weft skew/weft bending.

In addition, the fabric may have irregular, irregular and periodically varying local skews that cannot be corrected by prior art weft straightening devices.

In addition, in some special fabrics, the straightening device in the prior art cannot perform straightening, for example, in chiffon fabrics, large weft skew is easy to generate, the straightening of the prior straightening device is difficult, the straightening amount of the prior straightening device is limited, a plurality of straightening devices are required to be combined for straightening, and the prior straightening device is large in size and high in cost.

In conclusion, the pin wheel weft straightening device and the roller weft straightening device have the defects of complex structure, long adjusting stroke, poor weft straightening effect, limited applicable textile types and the like. Therefore, the rapid development of textiles, the updating of fabric fibers and weaving technologies and the unreasonable bending of fabrics cause that the existing weft straightening technology cannot meet the correction of oblique weft bending and oblique pattern bending, and a novel weft straightening measure is urgently needed to solve the existing dilemma, reproduce the patterns, lines and styles on the surfaces of the textiles and the basic organizational structure, improve the use value of the textiles and improve the product quality.

Disclosure of Invention

In order to solve the technical problems of complex structure, long adjusting stroke, poor weft yarn correcting effect and limited application range of a weft yarn straightening device in the prior art, the invention provides a fabric correcting module, a fabric correcting mechanism and a fabric correcting method, and the technical problems are solved. The technical scheme of the invention is as follows:

a fabric correcting module disposed in a path of travel of a fabric, wherein at least a lateral side of the fabric is disposed the fabric correcting module, the fabric correcting module comprising: a roller having a frictional outer circumferential surface that comes into contact with the fabric; the driving module drives the roller to rotate, and the roller rotates along the conveying direction to adjust the traveling speed of the fabric in the width direction.

The fabric correcting module is arranged on at least one side of the conveyed fabric in the width direction, and comprises rollers, the rollers are provided with friction peripheral surfaces, the friction peripheral surfaces of the rollers are in contact with the fabric, and the rollers are driven to rotate relatively independently. When the fabric correcting module is only arranged on one side of the fabric in the width direction, the fabric correcting module can control the walking speed of the fabric on the side edge in the width direction, so that a differential speed is formed between the walking speed of the side edge in the width direction and the walking speed of the other side edge of the fabric, and the fabric is corrected. When the fabric correcting modules are arranged on the two sides of the fabric in the radial direction, the fabric correcting modules on the two sides in the radial direction can respectively control the traveling speed of the lateral side of the fabric where the fabric is located, so that the traveling speeds on the two sides of the fabric in the radial direction form a differential speed to correct the fabric.

Compared with the passive weft straightening of a pinwheel weft straightening device, the correction module can actively straighten the weft, the rotating speed of the rollers on the radial side can be controlled by controlling the rotating speed of the rollers on one side or two sides of the radial side, the influence of the radial tension of the fabric can be avoided, and the rollers actively influence the running speed of the fabric on the radial side to ensure the correction effect; the running speed of the fabric in the width direction can be influenced by the contact between the rollers of the correcting module and the fabric, the correcting effect is not required to be ensured by expanding, so that the quality of the fabric in the width direction can not be influenced, and the problem of interference with the subsequent processing technology of the fabric can not be caused; the straightening module only needs to be provided with at least one roller on at least one radial side of the conveyed fabric, and from the minimum unit, the radial side of the conveyed fabric is provided with the roller, the size of the roller is not limited, and compared with the setting of the size of a pinwheel in a pinwheel weft straightening device, the straightening module is simple in structure and small in size; the roller type correcting module can continuously adjust the traveling speed of the lateral side of the fabric to correct the fabric, and has strong flexibility. The correcting module can adopt rollers with smaller sizes, the contact radial length of the rollers and fabrics is small, the rotating speed of the rollers can be flexibly controlled according to the weft skew weft bending state, and the correcting module can quickly respond and carry out weft straightening on irregular, irregular and periodically-changed weft skew weft bending.

Compared with a roller type weft straightening device, the straightening module only needs to be provided with at least one roller on at least one radial side of the conveyed fabric, and only needs to be provided with one roller on one radial side of the conveyed fabric from the minimum unit, so that the size of the roller is not limited, the structure is simple, the size is small, the adjusting stroke is short, and the real-time control can be realized; according to the correcting module, the running speed of the radial side of the fabric can be adjusted only by contacting the rollers on the radial side with the fabric, and the fabric does not need to enter the correcting module in the middle; no matter the correction module is a knitwear with large extensibility and easy deformation by external force, a chiffon with a loose structure and a low-elasticity woven fabric or a high-elasticity woven fabric, as long as the roller is in contact with the woven fabric, the rotating speed of the roller can adjust the walking speed of the lateral side of the woven fabric, namely, the type of the woven fabric aimed by the correction module is not limited.

According to one embodiment of the present invention, further comprising a driven roller wheel, the roller wheel being mounted on one lateral side of the web, the driven roller wheel being rotatably mounted on the other lateral side of the web and being in contact with the web. Through setting up the relative setting of running roller of driven running roller and fabric correction module, driven running roller can cooperate the running roller to play the support guide effect to both sides of breadth of fabric, prevents that the fabric from taking place the skew.

According to one embodiment of the invention, the roller forms a roll wrap angle with the fabric from below the fabric. The tight contact between the roller and the fabric is ensured by arranging the roller to form a roller wrap angle with the fabric, so that the rotation of the roller can influence the traveling speed of the contacted fabric in the radial direction; the roller is further arranged to form a roller wrap angle with the fabric from the lower part of the fabric, the fabric can keep the contact state with the roller under the tension action of the cloth cover, and the fabric can be effectively prevented from being separated from the roller.

According to one embodiment of the invention, the axis of the roller may form an angle with respect to the width direction of the web. In the initial state, the axis of the roller is in the width direction of the fabric, and the included angle is formed between the axis of the roller and the width direction of the fabric by adjusting, so that the width direction tension of the fabric is increased, and the weft bending/pattern bending can be corrected.

A fabric correcting module disposed in a path of travel of a fabric, the fabric being disposed on opposite sides in a radial direction, the fabric correcting module comprising: a spreader roll, an outer circumferential surface of which is brought into contact with the fabric; and the driving piece drives the expanding roller to rotate, and the expanding roller rotates along the conveying direction to adjust the traveling speed of the fabric in the width direction to the side edge so as to form differential correction and/or expanding.

The fabric correcting module adopts two groups of fabric correcting modules which are arranged on the two sides of the fabric in the width direction, the peripheral surfaces of the expanding rollers are in contact with the fabric, and the two expanding rollers are respectively and independently driven, so that the fabric correcting module not only has the function and the effect of the differential speed fabric correcting module adopting the rollers with the friction peripheral surfaces, but also can play a role in expanding, increase the tension of the fabric in the width direction and further correct the fabric.

According to one embodiment of the present invention, the spreader bar is a telescopic spreader bar, the spreader bar includes a roller body and a plurality of sliding members slidably fitted on the roller body, the sliding members are axially slidable along the roller body, and friction surfaces are formed on outer surfaces of the sliding members. The expanding roller is a telescopic expanding roller, the roller body is provided with a sliding part in a sliding mode, the outer surface of the sliding part is provided with a friction surface, and the friction surface is arranged to increase the contact friction force between the expanding roller and the fabrics and prevent the sliding between the sliding part and the fabrics. Thus, the running speed of the fabric in the width direction can be controlled when the expanding roller rotates; the sliding piece on the expanding roller slides outwards along the axial direction of the roller body, and the fabric can be expanded.

According to one embodiment of the invention, the spreader roll forms a roll wrap angle with the fabric from below the fabric. The close contact between the spreading roller and the fabrics is ensured by arranging the spreading roller and the fabrics to form a roller wrap angle, so that the rotation of the spreading roller can influence the traveling speed of the contacted fabrics in the width direction; the expander roll forms a roll wrap angle with the fabric from the lower part of the fabric, and the fabric tension of the fabric can effectively prevent the fabric from separating from the expander roll.

The fabric correcting mechanism comprises the fabric correcting module and a detection module, wherein the detection module comprises at least one image acquisition device for acquiring the weft condition of the fabric, and the at least one image acquisition device is positioned on the upstream side of the fabric correcting module; or, the number of the image acquisition devices is at least two, and the at least two image acquisition devices are positioned on the upstream side and the downstream side of the fabric correcting module.

According to an embodiment of the invention, the device further comprises a central processing unit, wherein the central processing unit acquires the condition of the woven fabric weft yarns acquired by the image acquisition device and controls the work of the woven fabric correction module according to the condition of the woven fabric weft yarns.

By arranging the detection module and the central processing unit, the image acquisition device in the detection module can acquire the condition of the weft of the fabric before entering the correction module, and the central processing unit controls the correction module to work according to the condition of the weft of the fabric before entering the correction module, which is acquired by the detection module, so as to adjust the traveling speed of the fabric on both sides in the radial direction; the image acquisition device can also acquire the fabric weft yarn condition behind the correction module, and the central processing unit controls the work of the correction module according to the fabric weft yarn condition behind the correction module acquired by the detection module, and the adjustable correction module is suitable for different kinds of fabrics. The type of fabric is different, and its performance such as extensibility, elasticity all differ, and the type performance of fabric can influence the correction effect of correcting the module, and central processing unit is according to getting into the fabric woof situation before and after correcting the module, but the operating condition of automatically regulated correction module to adapt to different types of fabric.

The fabric correcting method adopts the fabric correcting mechanism and comprises the following steps:

s1, acquiring the condition of the weft yarn of the fabric before entering the fabric correcting module;

s2, the fabric correcting module corrects the fabric according to the weft yarn condition of the fabric.

According to one embodiment of the invention, the fabric correcting method further comprises:

s3, obtaining the feedback condition of the fabric weft yarn corrected by the fabric correcting module;

and S4, adjusting the fabric correcting module according to the feedback condition of the weft yarns of the fabric to dynamically correct the fabric.

The fabric correcting method realizes dynamic correction of the fabric by dynamically controlling the correcting module, and can improve the accuracy of fabric correction.

According to one embodiment of the invention, the fabric correcting module corrects the fabric by correcting skew and/or pattern skew of the fabric and/or correcting warp and/or pattern curvature of the fabric.

According to one embodiment of the invention, correcting skew in filling and/or pattern of a fabric comprises: the rotating speed of the fabric correcting modules at one side or two sides of the fabric in the radial direction is adjusted to ensure that the traveling speed at two sides of the fabric in the radial direction forms a differential speed.

According to one embodiment of the invention, correcting weft bending and/or pattern bending in a fabric comprises: adjusting the axis of the roller to form an included angle between the axis of the roller and the width direction of the fabric; or, the sliding position of the sliding piece of the expanding roller on the roller wheel is adjusted, and the expansion degree of the expanding roller is adjusted.

The fabric correcting module can enable the traveling speeds of the two lateral sides of the fabric to form differential speed by adjusting the traveling speed of the lateral sides of the fabric so as to correct the skewness of the weft and/or the skew of the pattern of the fabric; the axis of the roller is adjusted to form an included angle relative to the width direction of the fabric; or the sliding position of the sliding part of the expanding roller on the roller wheel is adjusted, and the expansion degree of the expanding roller is adjusted, so that the weft bending and/or pattern bending of the fabric can be corrected. The fabric correcting module can correct various fabrics and has a wide application range.

Based on the technical scheme, the invention can realize the following technical effects:

1. the fabric correcting module adopts the structure that at least one side of the conveyed fabric in the width direction is respectively provided with the fabric correcting module, the fabric correcting module comprises rollers, the peripheral surfaces of the rollers are in contact with the fabric, and the rollers are relatively and independently driven to rotate, namely, the correcting module adopts active correction, the rollers on the side edge of the conveyed fabric in the width direction are driven by the driving module to rotate actively, so that the traveling speed of the side edge of the conveyed fabric in the width direction is influenced, and the correction of the fabric is realized. The fabric correcting module is only required to be configured on at least one radial side of the conveyed fabric, each group of fabric correcting module is provided with at least one roller, from the minimum unit, one roller is configured on one radial side of the conveyed fabric, and the size of the roller is not limited either; the rollers are provided with friction peripheral surfaces, so that the contact friction force between the rollers and fabrics can be increased, and the rollers and the fabrics are prevented from slipping;

2. for the chiffon fabric which is easy to generate large weft skew, the fabric correcting module adopts a differential correcting mode, and can actively control the rollers on the two sides in the width direction to generate larger differential so as to correct the large weft skew; for many varieties of warp knitting, weft knitting and partial woven fabrics, the position of a certain section of weft skew can be corrected by adopting a differential correction mode, after the position of the weft skew is corrected, other coil weft skews can be corrected in a smooth manner, rollers on the two sides in the radial direction can rotate at the same rotating speed, and the weft skew correction which is not easy to implement by the existing correction device is completed;

3. when the fabric correcting module is arranged on one side of the fabric in the width direction, the driven roller is arranged on the other side of the fabric in the width direction, and the driven roller can be matched with the roller to play a supporting and guiding role on two sides of the fabric in the width direction, so that the fabric is prevented from deviating; the roller forms a roller wrap angle with the fabric from the lower part of the fabric, so that the roller can be ensured to be in close contact with the fabric, and the fabric is effectively prevented from being completely separated from the roller; the axial line of the roller can form an included angle relative to the width direction of the fabric, the width of the fabric on the roller can be expanded by adjusting the inclination of the axial line of the roller relative to the width direction of the fabric, and the weft bending and/or the pattern bending of the fabric can be corrected on the basis of correcting the weft inclination and/or the pattern skew of the fabric;

4. the fabric correcting module adopts active correction, rollers on the lateral sides of the conveyed fabric rotate actively to influence the traveling speed of the lateral sides of the conveyed fabric, the rotating speeds of the expanding rollers on the lateral sides of the fabric form a differential speed, and the skewing of weft and/or pattern of the fabric can be corrected; in addition, the expanding roller can also play a role in expanding the fabric, and the weft bending and/or pattern bending of the fabric can be corrected by expanding the fabric; the expanding roller is further arranged to be a telescopic expanding roller, and the outer surface of the sliding part on the expanding roller is provided with a friction surface, so that the contact friction force between the expanding roller and the fabrics can be increased, and the sliding between the roller wheel and the fabrics is prevented. The fabric straightening module formed by the expanding roller can also correct large skewness and many varieties of skewness correction of warp knitting, weft knitting and partial woven fabrics.

5. According to the fabric correcting mechanism, the detection module and the central processing unit are arranged, the image acquisition device in the detection module can acquire the fabric weft conditions before and after entering the correction module, the central processing unit controls the correction module to work according to the fabric weft conditions acquired by the detection module, and the correction effect is good;

6. according to the fabric correcting method, the fabric correcting module is dynamically controlled to realize dynamic fabric correction, so that the fabric correcting accuracy can be improved; the fabric correcting module can enable the traveling speeds of the two lateral sides of the fabric to form differential speed by adjusting the traveling speed of the lateral sides of the fabric so as to correct the skewness of the weft and/or the skew of the pattern of the fabric; the axis of the roller is adjusted to form an included angle relative to the width direction of the fabric; or the sliding position of the sliding part of the expanding roller on the roller wheel is adjusted, and the expansion degree of the expanding roller is adjusted, so that the weft bending and/or pattern bending of the fabric can be corrected. The fabric correcting module can correct various fabrics and has a wide application range.

Drawings

FIG. 1 is a schematic representation of the structure of a woven fabric of the present invention;

FIG. 2 is a schematic structural view of a warp knitted fabric of the present invention;

FIG. 3 is a schematic view of the structure of a weft knitted fabric of the invention;

FIG. 4 is a schematic structural diagram of a fabric correcting mechanism according to a first embodiment of the present invention;

FIG. 5 is a schematic structural view of a fabric correcting mechanism according to a second embodiment of the present invention;

FIG. 6 is a schematic structural view of a fabric correcting mechanism according to a third embodiment of the present invention;

FIG. 7 is a view showing an operating state of the fabric correcting mechanism of the third embodiment;

FIG. 8 is a schematic structural view of a fabric correcting mechanism according to a fourth embodiment of the present invention;

FIG. 9 is a schematic view of a spreader bar construction;

FIG. 10 is a schematic view showing an internal structure of a spreader bar;

FIG. 11 is a schematic view of a telescoping adjustment assembly;

FIG. 12 is a cross-sectional view of the telescoping adjustment assembly;

FIG. 13 is a schematic structural view of a fabric correcting mechanism according to a fifth embodiment of the present invention;

FIG. 14 is a sectional view of the fabric correcting mechanism according to the fifth embodiment.

In the figure: 1-a fabric correcting module; 11-a roller; 111-friction peripheral surface; 112-a mount; 12-a drive module; 13-a driven roller; 14-a yaw drive; 15-a spreader roll; 151-a roller body; 152-a skateboard support; 153-sliding plate; 1531 — rubbing face; 16-a drive member; 161-a drive shaft; 17-a telescopic adjustment assembly; 171-a support; 172-a bearing seat; 173-push plate; 174-a drive roller; 175-circular ring; 176-a connector; 2-a fabric; 3-a roller frame; 4-a detection module; 41-a first image acquisition device; 42-a second image acquisition device; 5-a cloth guide roller; 6-a spiral expander roll; 61-a drive device; 7-bending the roll; 8-straightening oblique rollers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The inventors have found that woven and knitted fabrics are suitable for different correction methods due to their different properties.

Specifically, fig. 1 shows the structure of the woven fabric of the present invention, and most woven fabrics are fabrics formed by weaving warp and weft yarns at an angle (for example, 90 degrees), the longitudinal yarns are called warp yarns, and the transverse yarns are called weft yarns, and most of the weaving points of the weft yarns and the warp yarns slip to generate skewness. The skew correction of the shuttle fabric in the prior art is usually corrected by the mechanical action of a weft straightening device, but the existing weft straightening device only obtains the effect that the weft with skew returns to the original interweaving point.

Fig. 2 shows the structure of a warp knitted fabric of the present invention, and fig. 3 shows the structure of a weft knitted fabric of the present invention, which is a fabric formed by sequentially bending a yarn into stitches and interlooping all the stitches with each other, and is classified into a warp knitted fabric and a weft knitted fabric according to the process of forming the stitches by the yarn. The bias/skew of the knitted fabric is the deviation of the stitches from a straight line perpendicular to the wales of the fabric, i.e. the courses of the knitted fabric are connected in series leaving a state of equilibrium, unlike the migration of each yarn with the woven fabric. Therefore, for correcting the state of the row stitch skewness of the non-tight chemical fiber knitted fabric, the position of the row stitch skewness of the knitted fabric can be corrected by only applying mechanical correction to the position of the stitch skewness state to restore the state to be vertical to the straight line of the wale of the fabric, and other stitch skewness connected with the position of the stitch skewness in series can also be corrected smoothly, which is different from the condition that the shuttle fabric needs to correct each deviated weft yarn, and the correction is determined by the weave structure of the knitted fabric. However, the conventional weft straightening device cannot correct the weft at a certain weft skew position, so that the weft skew correction for the fabrics is difficult.

That is, the weft straightening device in the prior art is only suitable for straightening of the normal woven fabric but is not well suitable for straightening of the knitted fabric. In order to be simultaneously suitable for the weft straightening of woven fabrics and knitted fabrics, the embodiment provides a fabric straightening module, a fabric straightening mechanism and a fabric straightening method.

The fabric correcting module, the fabric correcting mechanism and the fabric correcting method have obvious correcting effect on woven fabrics and knitted fabrics with large weft skew.

Example one

As shown in fig. 4, the present embodiment provides a fabric correcting module 1, the fabric correcting module 1 is disposed in a running path of a fabric 2, the fabric correcting module 1 is disposed on at least one side of the fabric 2, the fabric correcting module 1 includes a roller 11 and a driving module 12, the roller 11 is rotatably mounted on a roller frame 3, an outer peripheral surface of the roller 11 is in contact with the fabric 2, and the driving module 12 drives the roller 11 to rotate to adjust a running speed of the fabric 2 to the side edge, so as to correct the fabric 2.

In this embodiment, the fabric correcting module 1 is disposed on a radial side of the fabric 2, the fabric correcting module 1 includes at least one roller 11, the roller 11 is rotatably mounted on the roller frame 3 through a bearing, the driving module 12 is also disposed on the roller frame 3, and the driving module 12 drives the roller 11 to rotate. When each group of the fabric correcting module 1 only comprises one roller 11, one driving module 12 is also arranged; when module 1 is corrected to every group fabric includes two above running rollers 11, the running roller 11 parallel arrangement of module 1 is corrected to the same group fabric in fabric 2's width of cloth one side, and running roller 11 can be driven by different drive module 12, also can be driven by same drive module 12, as long as the realization is located fabric 2's width of cloth to the same rotational speed of running roller 11 of homonymy can. The drive module 12 may be selected from, but not limited to, an electric motor, a hydraulic motor.

According to another embodiment of the driving method of the invention, the driving element 12 drives the roller 11 through a transmission set, for example: the driving member 12 drives the roller 11 through the driving gear and the driven gear, but the number of the transmission gears can be set according to the requirement, and is not limited thereto. In addition, those skilled in the art will also readily recognize other ways to accomplish the driving, such as pulleys, sprockets, etc.

According to another embodiment of the driving method of the present invention, the driving member 12 is configured as an outer rotor type motor, and the roller 11 is assembled on the outer rotor, but it is also possible to use an outer rotor directly configured as the roller 11, as long as the driving of the roller 11 by the driving member 12 can be realized, and it is not limited to this.

As a preferable mode of the present embodiment, the two rollers 11 are provided with edge chasers.

In a preferred embodiment of the present invention, the roller 11 has a frictional outer circumferential surface 111, and the frictional outer circumferential surface 111 is in contact with the web 2. The axis of the roller 11 is perpendicular to the running direction F of the fabric 2.

As a preferred technical scheme of the embodiment, the diameter of the roller 11 is 20mm-450 mm.

In order to realize that the straightening module 1 controls the running speed of the width-wise side of the conveyed fabric 2 to differentially correct the fabric 2, the rollers 11 and the fabric 2 can adopt a matching mode as shown in fig. 4, the rollers 11 are contacted with the fabric 2 from the upper part of the fabric 2, and a roller wrap angle is formed between the rollers 11 and the fabric 2, so that the running speed of the width-wise side of the contacted fabric 2 is influenced by the rotation of the rollers 11.

In addition, the roller 11 can contact with the fabric 2 from the lower part of the fabric 2, and a roller wrap angle is formed between the roller 11 and the fabric 2, so that the rotation of the roller 11 can influence the running speed of the contacted fabric 2 in the width direction, and the control of the running speed of the fabric 2 in the width direction can be realized under the matching state. Because the fabric 2 covers the roller 11 with a certain wrap angle, the fabric tension of the fabric 2 during operation can effectively prevent the fabric 2 from separating from the roller 11.

The embodiment also provides a fabric correcting mechanism, which comprises a fabric correcting module 1, a roller frame 3 and a cloth guide roller 5, wherein the fabric 2 enters the fabric correcting module 1 under the action of the cloth guide roller 5, and the fabric correcting module 1 controls the running speed of the fabric 2 in the width direction according to the weft yarn condition of the fabric 2 to correct the fabric 2. Specifically, both ends of the cloth guide roller 5 are rotatably transferred on the roller frame 3, the cloth guide roller 5 is positioned at the upstream of the fabric correcting module 1, and the fabric 2 enters the correcting module 1 under the guidance of the cloth guide roller 3. One end of a roller 11 of the fabric correcting module 1 is rotatably assembled on the roller frame 3, the other end of the roller extends to the middle part of the fabric 2 in the radial direction, a driving module 12 is fixed on the roller frame 3, and the driving end of the driving module drives the roller 11 to rotate.

In order to obtain the weft condition of the fabric 2, the fabric correcting mechanism further comprises a detection module 4, the detection module 4 comprises at least one image acquisition device for acquiring the weft condition of the fabric, and the at least one image acquisition device is positioned on the upstream side of the fabric correcting module 1 for acquiring the weft condition of the fabric 2 before entering the fabric correcting module 1; alternatively, at least two image capturing devices are provided, and the at least two image capturing devices are provided on the upstream side and the downstream side of the fabric correcting module 1, and capture the weft state of the fabric 2 before and after entering the fabric correcting module 1, respectively. In this embodiment, the number of the image capturing devices is two, and the two image capturing devices are respectively a first image capturing device 41 and a second image capturing device 42, and the first image capturing device 41 is located on the upstream side of the fabric correcting module 1 and is used for capturing the condition of the weft yarn of the fabric before entering the fabric correcting module 1; the second image pickup device 42 is located on the downstream side of the cloth correcting module 1 and picks up the condition of the weft of the cloth corrected by the cloth correcting module 1. The first image capturing device 41 and the second image capturing device 42 are optional but not limited to cameras.

In order to control the fabric correcting module 1 to work according to the weft condition of the fabric 2, the fabric correcting mechanism further comprises a central processing unit, and the central processing unit receives the fabric weft condition obtained by the detecting module 4 and controls the fabric correcting module 1 to work according to the fabric weft condition.

As a preferred technical solution of this embodiment, a spiral expanding roller 6 is further disposed at the downstream side of the fabric straightening module 1, both ends of the spiral expanding roller 6 are rotatably assembled on the roller frame 4, and the spiral expanding roller 6 is driven by the driving device 61 to rotate so as to expand the fabric 2. The spiral expanding roller 6 can be replaced by a telescopic expanding roller, a rubber expanding bending roller and the like.

The embodiment also provides a fabric correcting method, which adopts the fabric correcting mechanism and comprises the following steps:

s1, acquiring the condition of the weft yarn of the fabric before entering the fabric correcting module 1;

s2, the fabric correcting module 1 corrects the fabric 2 according to the condition of the weft yarn of the fabric.

Specifically, in step S1, the first image capturing device 41 captures the condition of the weft yarn of the fabric before entering the fabric correcting module 1, and transmits the captured condition of the weft yarn of the fabric to the central processing unit, and the central processing unit determines whether the weft yarn of the fabric 2 is skewed and/or skewed in pattern according to the received condition of the weft yarn of the fabric, and controls the fabric correcting module 1 to correct the fabric 2 according to the determination result.

In step S2, the fabric correcting module 1 corrects the fabric 2, including: the tangential speed of the tangent position of the roller 11 and the fabric 2 is in the same direction as the walking direction of the fabric 2, the rotating speed of the roller 11 in the fabric correcting module 1 is controlled, the tangential speed of the tangent position of the roller 11 and the fabric 2 is greater than or less than the normal walking speed of the fabric 2, the walking speed of the fabric 2 in the radial direction is controlled, and then the walking speed of the fabric 2 in the radial direction on two sides is differentiated to correct the fabric. Through the control mode, the adjustment of the running speed of the fabric correcting module 1 to the two radial sides of the fabric 2 can be realized.

As a preferable embodiment of the present invention, the fabric correcting method further includes the steps of:

s3, acquiring the feedback condition of the fabric weft yarn corrected by the fabric correcting module 1;

and S4, adjusting the fabric correcting module 1 according to the feedback condition of the weft yarns of the fabric to dynamically correct the fabric 2.

In step S3, the second image capturing device 42 captures the corrected weft condition of the fabric correcting module 1 and transmits the corrected weft condition to the central processing unit, and the central processing unit can adjust the state of the fabric correcting module 1 according to the corrected weft condition of the fabric to dynamically correct the fabric 2. In addition, the central processing unit can compare and analyze the weft conditions of the fabrics acquired by the two image acquisition devices 42 so as to acquire control parameters aiming at different kinds of fabrics, and the differential correction of the fabric 2 by the fabric correction module 1 can be accurately controlled in the subsequent fabric processing process. The method of correcting the fabric 2 by the fabric correcting module 1 in the step S4 is the same as the method of correcting the fabric 2 by the fabric correcting module 1 in the step S2.

Example two

As shown in FIG. 5, the present embodiment is substantially the same as the first embodiment except that the module for correcting a web of material 1 further includes a driven roller 13, the driven roller 13 is rotatably mounted on the roller housing 5, the module for correcting a web of material 1 is disposed on one widthwise side of the web of material 2, and the driven roller 13 is disposed on the other widthwise side of the web of material 2.

In a preferred embodiment of the present invention, the axis of the driven roller 13 is coaxial with the roller 11, and the outer peripheral surface of the driven roller 13 is in contact with the web 2.

In this embodiment, the detection module 4 only includes the first image capturing device 41, the first image capturing device 41 is located at the upstream side of the fabric correcting module 1 and is used for capturing the condition of the weft yarn before entering the fabric correcting module 1, and the central processing unit controls the fabric correcting module 1 to correct the fabric 2 according to the captured condition of the weft yarn before entering the fabric correcting module 1. The detecting module 4 in this embodiment may also be configured to have the same structure as that of the first embodiment.

EXAMPLE III

As shown in fig. 6 to 7, the present embodiment is substantially the same as the first embodiment, except that the fabric correcting modules 1 in the present embodiment are two groups, which are respectively disposed on the two sides of the fabric 2 in the radial direction. The running roller 11 of module 1 is corrected to two sets of fabrics all rotates the assembly on roller frame 3, and running roller 11 is rotated by the drive of the drive module 12 that corresponds, and the outer peripheral face of the running roller 11 of module 1 is corrected to two sets of fabrics all contacts with fabric 2.

In addition, in the present embodiment, the axes of the rollers 11 of the fabric correcting module 1 may form an angle with respect to the width direction of the fabric 2. Specifically, the roller 11 is rotatably mounted on the mounting seat 112, the driving module 12 is also mounted on the mounting seat 112, the mounting seat 112 is rotatably mounted on the roller frame 3, and the deflection driving element 14 drives the mounting seat 112 to deflect, so that the axis of the roller 11 forms an included angle with respect to the width direction of the fabric 2. The swing driving member 14 can be selected from, but not limited to, a telescopic cylinder, and a telescopic end of the telescopic cylinder can push the mounting seat 112 and the roller 11 thereon, and the driving module 12 to swing together, so as to adjust the axial position of the roller 11.

As a preferable technical solution of this embodiment, in the initial state, the two rollers 11 are located on the same axis, and the axes of the two rollers 11 are perpendicular to the running direction F of the web 2.

As shown in fig. 7, the fabric 2 before entering the fabric correcting module 1 is in a skew weft state shown by a dotted line, and the rotational speeds of the two rollers 11 are controlled so that the rotational speed of the roller 11 on the right side is greater than the rotational speed of the roller 11 on the left side, thereby correcting the fabric so that the weft of the fabric is perpendicular to the warp of the fabric.

In the correcting method of the embodiment, the fabric correcting module 1 corrects the skew of weft and/or the skew of pattern of the fabric 2 and corrects the warp of weft and/or the warp of pattern of the fabric 2.

Correcting skew in filling and/or pattern of the fabric 2 comprises: the rotating speed of the fabric correcting module 1 at one side or two sides of the fabric 2 in the radial direction is adjusted to lead the traveling speed at the two sides of the fabric 2 in the radial direction to form differential speed. The method specifically comprises the following steps: increasing the rotating speed of the roller 11 positioned at one side of the fabric 2 in the width direction, and keeping the rotating speed of the roller 11 positioned at the other side of the fabric 2 in the width direction unchanged; or, the rotating speed of the roller 11 positioned at one side of the fabric 2 in the width direction is reduced, and the rotating speed of the roller 11 positioned at the other side of the fabric 2 in the width direction is unchanged; alternatively, the rotational speed of the roller 11 positioned on one side of the web 2 in the width direction is increased, and the rotational speed of the roller 11 positioned on the other side of the web 2 in the width direction is decreased. Through the three control modes, the fabric correcting module 1 can control the walking speeds of the two radial sides of the fabric 2 to form a speed difference, and then the fabric 2 is corrected.

Straightening weft loops and/or pattern bends in the fabric 2 includes: the axis of the roller 11 is adjusted so that the axis of the roller 11 forms an angle with respect to the width direction of the fabric 2. The method specifically comprises the following steps: the central processor controls the driving end of the deflection driving piece 14 to stretch and contract so as to push the mounting seat 112 and the roller 11 thereon to deflect, so that the axis of the roller 11 forms an included angle relative to the width direction of the fabric 2, the width direction tension of the fabric 2 is increased, and the weft bending and/or pattern bending of the fabric 2 are corrected.

Example four

As shown in fig. 8-12, this embodiment is substantially the same as the third embodiment except that: the fabric 2 is provided with fabric correcting modules 1 on both sides in the radial direction, and the fabric correcting modules 1 are different in structure. In this embodiment, the fabric straightening module 1 includes a spreader roll 15 and a driving member 16, and the outer circumferential surface of the spreader roll 15 is in contact with the fabric 2; the driving member 16 drives the expander roll 15 to rotate, and the expander roll 15 rotates to adjust the lateral traveling speed of the fabric 2, so as to form differential straightening and/or expanding. The spreading roll 15 can be a rubber spreading curved roll, a spiral spreading roll or a telescopic spreading roll, in this embodiment, the spreading roll 15 is a telescopic spreading roll, the spreading roll 15 includes a roll body 151, a sliding plate support 152 is sleeved on the roll body 151, and a plurality of sliding plates 153 are slidably assembled on the sliding plate support 152. The sliding plate support 152 is in a ring shape, a plurality of protrusions are uniformly distributed on the periphery of the sliding plate support 152, the protrusions are hooked at two ends of the sliding plate 153 and are assembled on the sliding plate support 152 in a sliding mode, and the sliding plate 153 can axially slide relative to the roller body 151 and the sliding plate support 152.

As a preferable mode of the present embodiment, the frictional surface 153 is formed on the outer surface of the sliding plate 153, and the frictional force between the sliding plate 153 and the cloth 2 is increased by providing the outer surface of the sliding plate 153 as the frictional surface, thereby preventing the slip between the cloth and the sliding plate 153.

As a preferable embodiment of this embodiment, the diameter of the spreader roll 15 is 50 to 500 mm. The spreader bar 15 may also be a helical spreader bar, which, when used, has a diameter of 30-350 mm.

The sliding plate 153 is driven by the telescopic adjusting component 17 to slide axially relative to the roller 151, so as to expand. The telescopic adjusting assembly 17 comprises a supporting seat 171, a bearing seat 172, a push plate 173, a driving roller 174, a circular ring 175 and a connecting piece 176, wherein the driving shaft 161 of the driving piece 16 is rotatably assembled on the supporting seat 171, and the driving shaft 161 drives the expander roll 15 to rotate. The supporting seat 171 is rotatably provided with a driving roller 174, the driving roller 174 is driven by a driving structure to rotate, the axis of the driving roller 174 is perpendicular to the axis of the roller body 151, one end of the push plate 173 is movably connected with the outer peripheral surface of the driving roller 174, the other end of the push plate 173 is movably connected, and the driving roller 174 can rotate to change the inclination of the push plate 173. The middle part of push pedal 173 is formed with the through-hole, in order to avoid forming the interference with the drive shaft, the through-hole department of push pedal 173 is equipped with annular bearing frame 172, the one end and the push pedal 173 of bearing frame 172 are connected, the through-hole of push pedal 173 is stretched out to the other end of bearing frame 172, the other end of bearing frame 172 is connected with ring 175 through the bearing rotation, ring 175 passes through connecting piece 176 and a plurality of slider 153 swing joint, when the gradient of push pedal 173 changes, ring 175 slopes thereupon, ring 175 pulls slider 153 for roll body 151 axial slip, in order to realize the expanding.

In a preferred embodiment of the present embodiment, the spreader roll 15 forms a roll wrap angle with the web 2 from below the web 2.

In the fabric correcting method of the embodiment, the fabric correcting module 1 corrects the fabric 2 by correcting the skew of weft and/or the skew of pattern of the fabric 2 and/or correcting the warp of weft and/or the warp of pattern of the fabric 2.

Correcting skew in filling and/or pattern of the fabric 2 comprises: the rotating speed of the spreader rolls 15 on one side or both sides of the web 2 in the width direction is adjusted so that the traveling speed of the web 2 on both sides in the width direction becomes a differential speed. The method specifically comprises the following steps: increasing the rotation speed of the spreader roll 15 located on one side of the web 2 in the width direction, the rotation speed of the spreader roll 15 located on the other side of the web 2 in the width direction being unchanged; alternatively, the rotation speed of the spreader roll 15 located on one side of the web 2 in the width direction is reduced, and the rotation speed of the spreader roll 15 located on the other side of the web 2 in the width direction is unchanged; alternatively, the rotation speed of the spreader roll 15 on one side of the web 2 in the width direction is increased, and the rotation speed of the spreader roll 15 on the other side of the web 2 in the width direction is decreased. Through the three control modes, the fabric correcting module 1 can control the walking speeds of the two radial sides of the fabric 2 to form a speed difference, and then the fabric 2 is corrected.

Straightening weft loops and/or pattern bends in the fabric 2 includes: the sliding position of the slider 153 of the spreader bar 15 on the roller body 151 is adjusted to adjust the degree of expansion and contraction of the spreader bar. Specifically, the central processing unit controls the driving structure of the driving roller 174 to work, the driving structure drives the driving roller 174 to rotate so as to adjust the inclination of the push plate 173, the push plate 173 drives the sliding piece 153 to axially slide outwards, and the fabric 2 can be widened through the two widening rollers 15, so that the fabric 2 can be corrected.

EXAMPLE five

As shown in fig. 13 to 14, the fabric correcting module 1 of the present embodiment is the same as the fabric correcting module 1 of the fourth embodiment except for the arrangement of the structures in the fabric correcting mechanism. In this embodiment, the upstream of module 1 is corrected to the fabric is provided with the speed governing roller, and the speed governing roller is rotated the assembly, and the speed governing roller is used for adjusting the fabric volume that the fabric entered into correction module 1, and then adjusts the tension that enters into correction module 1.

Other correcting rollers are arranged between the fabric correcting module 1 and the spiral expanding roller 6, the correcting rollers comprise bending rollers 7 and/or straightening inclined rollers 8, and the bending rollers 7 and/or the straightening inclined rollers 8 are rotatably assembled to further correct the fabric 2. In this embodiment, the correcting rolls include a bending roll 7 and a straightening roll 8, the number of the bending roll 7 and the straightening roll 8 is at least two, the at least two bending rolls 7 and the at least two straightening rolls 8 are arranged in a parallel and staggered manner, and the spiral expander roll 6 is located at the downstream of the bending roll 7 and the straightening roll 8.

As a preferred technical solution of this embodiment, the dancer roll, the fabric straightening module 1, the cloth guide roll 5, the bending roll 7, the skew roll 8, and the spiral expander roll 6 are all integrally installed on the roll frame 3, and the fabric 2 sequentially runs in parallel and alternately along the dancer roll, the fabric straightening module 1, the bending roll 7, the skew roll 8, and the spiral expander roll 6 and then is guided out. Because above-mentioned each part all is the running roller structure, consequently concentration degree is high, occupies smallly.

In this embodiment, the first image capturing device 41 of the inspection module 4 is disposed upstream of the straightening module 1, and the second image capturing device 42 is disposed downstream of the helical expander roll 6.

The dancer roll, the bending roll 7 and the skew roll 8 in this embodiment can be matched with the straightening module 1 of other embodiments in addition to the straightening module 1 of this embodiment.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A fabric correcting module (1), the fabric correcting module (1) being arranged in a running path of a fabric (2), characterized in that at least one lateral side of the fabric (2) is provided with the fabric correcting module (1), the fabric correcting module (1) comprising:

a roller (11), the roller (11) having a frictional outer circumferential surface (111), the frictional outer circumferential surface (111) being in contact with the fabric (2);

the driving module (12), the driving module (12) drives the roller (11) to rotate, and the roller (11) actively adjusts the running speed of the side fabric (2).

2. A clothing correcting module (1) according to claim 1, further comprising a driven roller (13), wherein the roller (11) is mounted on one lateral side of the clothing (2), and the driven roller (13) is rotatably mounted on the other lateral side of the clothing (2) and contacts the clothing (2).

3. A set of clothing correction module (1) according to claim 1, characterized in that the roller (11) forms a roller wrap angle with the clothing (2) from below the clothing (2).

4. A set of clothing correcting modules (1) according to any one of claims 1-3, characterized in that the axis of the roller (11) is angled in relation to the width direction of the clothing (2).

5. A fabric correcting module (1), the fabric correcting module (1) being arranged in a running path of a fabric (2), characterized in that the fabric correcting module (1) is arranged on both sides of the fabric (2) in the radial direction, the fabric correcting module (1) comprising:

a spreader roll (15), the outer circumferential surface of the spreader roll (15) being in contact with the fabric (2);

the driving piece (16) drives the expanding roller (15) to rotate, and the expanding roller (15) rotates along the conveying direction to adjust the lateral traveling speed of the fabric (2) to form differential correction and/or expanding of the fabric (2).

6. A set of textile straightening modules (1) according to claim 5, characterized in that the spreader bar (15) is a telescopic spreader bar, the spreader bar (15) comprising a roller body (151) and a plurality of sliding elements (153) slidably mounted on the roller body (151), the sliding elements (153) being axially slidable along the roller body (151), the outer surface of the sliding elements (153) being formed with a friction surface (1531).

7. A fabric correcting module (1) according to claim 6, characterized in that the spreader roll (15) forms a roll wrap angle with the fabric (2) from below the fabric (2).

8. A fabric correcting mechanism, comprising a fabric correcting module (1) according to any one of claims 1 to 7, and further comprising a detecting module (4), wherein the detecting module (4) comprises at least one image acquisition device for acquiring the condition of weft of the fabric, and at least one image acquisition device is positioned at the upstream side of the fabric correcting module (1); or, the number of the image acquisition devices is at least two, and the at least two image acquisition devices are positioned on the upstream side and the downstream side of the fabric correcting module (1).

9. The fabric correcting mechanism according to claim 8, further comprising a central processing unit, wherein the central processing unit obtains the condition of the fabric weft yarn collected by the image collecting device and controls the fabric correcting module (1) to operate according to the condition of the fabric weft yarn.

10. A method of correcting a fabric, comprising the steps of:

s1, acquiring the condition of the weft yarn of the fabric before entering the fabric correcting module (1) according to any one of claims 1 to 7;

s2, the fabric correcting module (1) corrects the fabric (2) according to the weft condition of the fabric (2).

11. The fabric correcting method according to claim 10, further comprising:

s3, acquiring the feedback condition of the weft yarn of the fabric (2) corrected by the fabric correcting module (1);

s4, adjusting the fabric correcting module (1) according to the feedback condition of the weft yarn of the fabric (2) to dynamically correct the fabric (2).

12. A method for correcting fabrics according to claim 10, wherein the fabric correcting module (1) corrects fabrics (2) comprising correcting skew and/or pattern skew of fabrics (2) and/or correcting warp and/or pattern bow of fabrics (2).

13. A method for correcting weft skew and/or pattern skew in a fabric (2) according to claim 12, comprising: the rotating speed of the fabric correcting module (1) at one side or two sides of the fabric (2) in the radial direction is adjusted to lead the traveling speed at two sides of the fabric (2) in the radial direction to form differential speed.

14. A method for correcting weft and/or pattern bends in a fabric (2) according to claim 12, characterized in that the correction of weft and/or pattern bends comprises: the axial line of the roller (11) is adjusted to form an included angle between the axial line of the roller (11) and the width direction of the fabric (2); alternatively, the degree of expansion and contraction of the spreader roll (15) is adjusted by adjusting the sliding position of the slider (153) of the spreader roll (15) on the roll body (151).