CN212639405U - Correction module and correction mechanism - Google Patents

Abstract

The utility model relates to a technical field is corrected to the fabric, concretely relates to correct module and aligning gear. The straightening module is arranged in a running path of fabric and comprises rollers, at least one roller is respectively arranged on both sides of the fabric in the width direction of the conveyed fabric, the outer peripheral surfaces of the rollers are in contact with the fabric, and the rollers on both sides of the fabric in the width direction of the conveyed fabric are arranged to be mutually and independently driven in a rotating mode so as to respectively control the traveling speed of the fabric on both sides in the width direction of the fabric, and differential straightening is realized. The correcting mechanism comprises the correcting module. 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

Correction module and correction mechanism

Technical Field

The utility model relates to a technical field is corrected to the fabric, concretely relates to correct module and aligning gear.

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 pinwheel do not have enough weft straightening strength, the straightened fabric weft yarn 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.

SUMMERY OF THE UTILITY MODEL

In order to solve the whole latitude device among the prior art and have the structure complicacy, adjust the stroke length, the woof is corrected the effect poor, the limited technical problem of application scope, the utility model provides a correct module and aligning gear has solved above-mentioned technical problem. The technical scheme of the utility model as follows:

the straightening module is arranged in a running path of fabric and comprises rollers, at least one roller is arranged on each of two sides of the fabric in the width direction of the conveyed fabric, the outer peripheral surfaces of the rollers are in contact with the fabric, and the rollers on the two sides of the fabric in the width direction of the conveyed fabric are arranged to be mutually and independently driven in a rotating mode so as to respectively control the traveling speed of the fabric on the two sides in the width direction of the fabric, and differential straightening is achieved.

The utility model discloses a correct module, the width of cloth that adopts the fabric of quilt to be carried is disposed at least one running roller respectively to both sides, and the outer peripheral face and the fabric of running roller form the contact, and the running roller is by relative independent rotation drive, promptly the utility model discloses a correct module adoption is active correction. When the straightening module rectifies the fabric, the rollers on the two sides of the fabric in the width direction are driven by the respective driving structures to rotate at different speeds, and the running speeds of the two sides of the fabric in the width direction form a differential speed.

Compared with the passive weft straightening device with a pinwheel weft straightening device, the correction module of the utility model can actively straighten weft, and can control the differential speed of the rollers on the two sides in the radial direction by controlling the rotating speed of the rollers on the two sides in the radial direction without being influenced by the radial tension of fabrics, thus realizing active adjustment and control of the rotating speed difference of the rollers on the two sides in the radial direction and ensuring the fabric correction effect; the contact between the roller and the fabric of the correcting module of the utility model can influence the walking speed of both sides of the fabric in the width direction without ensuring the correcting effect by expanding the width, thus the quality of both sides of the fabric in the width direction can not be influenced, and the problem of interference with the subsequent processing technique of the fabric can not exist; the utility model discloses a correct module only needs to dispose at least one running roller respectively in the width of cloth both sides of being transported, from minimum unit, the width of cloth both sides of being transported dispose a running roller respectively can, the size of running roller also need not to be restricted, compare in the setting of the size of pinwheel among the pinwheel weft straightening device, the utility model discloses a correct module's simple structure, it is small; the utility model discloses a correction module adopts the width of cloth of contact adjustment fabric to the walking speed of both sides, compares in the recovery of the whole latitude of pinwheel dependence fabric internal force and realizes, requires the fabric to advance the pinwheel and to go out the pinwheel and guarantee that there is the dead time, and the whole latitude effect of pinwheel receives the restriction of fabric functioning speed, the utility model discloses a sustainable adjustment fabric of correction module is in order to correct the fabric to the walking speed of both sides, and the flexibility is strong. The utility model discloses a correct the module, can adopt the running roller of smaller size, the warp direction length of the contact of running roller and fabric is little, can be according to the curved state of oblique latitude of latitude, the rotational speed of nimble control running roller, the utility model discloses a but correct the module quick response, to irregular, irregular and the fast oblique latitude of periodic variation curved the whole latitude that carries on.

Compared with a roller type weft straightening device, the correcting module of the utility model only needs to be respectively provided with at least one roller on both sides of the fabric in the width direction, and from the minimum unit, only one roller is respectively arranged on both sides of the fabric in the width direction, and the size of the roller does not need to be limited, so that the correcting module has the advantages of simple structure, small volume, short adjusting stroke and real-time control; in the correcting module of the utility model, the running speeds of the two sides in the width direction of the fabric can be adjusted only by contacting the running rollers on the two sides in the width direction with the fabric, and the fabric does not need to enter the correcting module in the middle; the utility model discloses a correct module no matter be to the extension big, receive the knitwear that external force very easily warp, the loose chiffon of structure and low elasticity woven fabrics, still high elasticity woven fabrics, as long as running roller and fabric contact, the rotation rate of running roller can be adjusted the walking speed of the breadth of woven side promptly, the kind of the fabric that the correction module of this application is directed to promptly is not restricted.

According to the utility model discloses an embodiment, the running roller cooperation has the compression roller, the fabric certainly the running roller with pass through between the compression roller. Through setting up the compression roller, skid between reducible running roller and the fabric to guarantee to correct the module and correct the accuracy of fabric.

According to an embodiment of the present invention, the roller has a friction outer peripheral surface. Through set up the friction surface on the running roller, can increase the contact friction between running roller and the fabric, prevent to skid between running roller and the fabric.

A correction mechanism comprises the correction module.

According to the utility model discloses an embodiment still includes the speed governing roller, the speed governing roller is located the upper reaches of running roller, the speed governing roller is adjusted and is entered into the fabric volume of two running rollers is in order to carry out tension adjustment to the fabric. Through setting up the adjustable fabric of speed governing roller and entering into the tension when correcting the module, can realize the differential better and correct.

According to the utility model discloses an embodiment still includes the bending roll and/or corrects skew roller, the bending roll and/or correct the skew roller and be located the low reaches of running roller, the bending roll and/or correct the skew roller by rotational assembly. By providing the bending roll and/or the straightening roll downstream of the straightening module, the fabric can be further straightened.

According to the utility model discloses an embodiment still includes the roller frame, integrated installation has the governor roll, corrects module, expander roll, bowed roll and corrects the skew roller on the roller frame, and the fabric is parallel staggered operation then derives along governor roll, correction module, bowed roll and correcting the skew roller in proper order. Through setting up the roll stand, speed governing roller, correction module, expander roll, bending roll and straightening the skew roll are the running roller structure, can integrate the assembly on the roll stand, and the integrated level is high, and is whole small.

According to an embodiment of the utility model, still include the detection module, the detection module includes the image acquisition device in order to gather the fabric woof situation, the image acquisition device is at least one, at least one the image acquisition device is located the upstream side of two running rollers; 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 two rollers.

According to the utility model discloses an embodiment still includes central processing unit, central processing unit acquires the fabric woof situation that the image acquisition device gathered, and according to fabric woof situation control fabric breadth to both sides the rotational speed of running roller.

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.

Based on the technical scheme, the utility model discloses the technological effect that can realize does:

1. the utility model discloses a correct module, the width of cloth that adopts the fabric of being delivered to is disposed at least one running roller respectively to both sides, and the outer peripheral face and the fabric of running roller form the contact, and the running roller is by relative independent rotation drive, promptly the utility model discloses a correct module adopts is active correction, and the width of cloth of the fabric of being delivered to the running roller of both sides is under the drive of respective drive structure to the speed of difference is rotatory, and then influences the walking speed of the width of cloth of being delivered to both sides, realizes the correction to the fabric. The utility model discloses a correct module only needs to dispose at least one running roller respectively in the width direction both sides of the fabric of being conveyed, from minimum unit, the width direction both sides of the fabric of being conveyed dispose a running roller respectively can, the size of running roller also need not to be restricted, compare in the weft straightening device among the prior art, the utility model discloses a correct module simple structure, it is convenient to adjust, correct effectually, application scope is wide;

2. the correcting module of the utility model adopts a differential correcting mode for chiffon fabrics which are easy to generate large skewness, and can actively control the rollers on both sides in the radial direction to generate larger differential so as to correct the large skewness; 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. the utility model discloses a correction module, in order to guarantee the running speed of the running roller to the width direction side of the fabric to be accurately controlled, the running roller is provided with a compression roller to reduce the slipping between the running roller and the fabric; or the friction outer surface is arranged on the roller wheel, so that the contact friction force between the roller wheel and the fabrics can be increased, and the roller wheel is prevented from slipping between the fabrics;

4. the correcting mechanism of the utility model is provided with the speed regulating roller at the upstream of the correcting module to regulate the tension when the textile enters the correcting module and prevent the textile from slipping between the roller wheel due to overlarge tension when entering the correcting module; the bending roll and/or the inclined correcting roll are arranged at the downstream of the correcting module, so that the fabric can be further corrected; by arranging the roller frame, the speed regulating roller, the correcting module, the spreading roller, the bending roller and the straightening oblique roller are all in a roller structure and can be integrally assembled on the roller frame, the integration level is high, and the whole volume is small; by arranging the detection module and the central processing unit, the image acquisition device in the detection module can acquire the conditions of the weft yarns of the fabrics before and after entering the correction module, and the central processing unit controls the correction module to work according to the conditions of the weft yarns of the fabrics acquired by the detection module, so that the correction effect is good;

drawings

Fig. 1 is a schematic structural view of the 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 structural view of a weft knitted fabric of the present invention;

fig. 4 is a schematic structural view of the straightening module of the present invention;

FIG. 5 is a schematic view of the rectification module and the fabric in a matching state;

FIG. 6 is a diagram illustrating the effect of the straightening module on straightening fabric;

FIG. 7 is a schematic view of the rectification module and the fabric in another matching state;

FIG. 8 is a schematic structural diagram of a corrective mechanism according to a first embodiment;

FIG. 9 is a schematic structural view of a correcting mechanism according to a second embodiment;

FIG. 10 is a cross-sectional view A-A of FIG. 9;

in the figure: 1-a correction module; 11-a roller; 111-friction peripheral surface; 12-a drive member; 2-a fabric; 3-a cloth guide roller; 4-a roller frame; 5-a detection module; 51-a first image capture device; 52-a second image acquisition device; 6-a spreading roll; 7-bending the roll; 8-straightening oblique rollers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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.

Unless specifically stated 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. 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 should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, 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 simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted 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 if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

By means of research utility models, it has been 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, most woven fabrics are fabrics formed by warp and weft yarns interwoven at a certain angle (e.g., 90 degrees), the longitudinal yarns are called warp yarns, the transverse yarns are called weft yarns, and in most cases, the interwoven points of the weft yarns and the warp yarns slide to generate skewness. Skew correction of prior art woven fabrics is often corrected by the mechanical action of the weft straightener, but prior weft straighteners only achieve skewWeft yarnAnd the effect of the original interleaving point is restored.

Fig. 2 shows the structure of the warp knitted fabric of the present invention, and fig. 3 shows the structure of the weft knitted fabric of the present invention, which is formed by sequentially bending the yarns into loops, and all the loops are interlooped with each other to form a fabric, and the process of forming the loops by the yarns is divided into a warp knitted fabric and a weft knitted fabric. 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 suitable for the weft straightening of woven fabric and knitted fabric simultaneously, the embodiment provides a straightening module and a straightening mechanism.

It should be noted that the utility model discloses a correction module and correctional agency all have obvious correction effect to big oblique shuttle fabric in latitude and knitted fabric.

Example one

As shown in fig. 4 to 8, the present embodiment provides a rectification module 1, the rectification module 1 is disposed in a running path of a web 2, the rectification module 1 includes at least two rollers 11, the at least two rollers 11 are rotatably assembled at both sides of the web 2 being conveyed, outer circumferential surfaces of the rollers 11 are brought into contact with the web 2, the rollers 11 at both sides of the web 2 being conveyed are configured to be rotatably driven independently of each other to control the running speed of the web 2 at both sides, respectively, so that the rollers 11 at both sides of the web 2 being conveyed can differentially rectify the web 2 being conveyed.

As shown in fig. 4, the straightening module 1 includes two rollers 11, the two rollers 11 are respectively disposed on two sides of the web 2 to be conveyed, and the two rollers 11 are respectively driven by two driving members 12 to rotate. Specifically, the two rollers 11 are rotatably mounted on the roller frame 4 through bearings, it is needless to say that the two rollers 11 may also be rotatably mounted on the roller frame 4 through a shaft, the two driving members 12 are also respectively disposed on the roller frame 4, and the two driving members 12 respectively drive the two rollers 11 to rotate. The drive member 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 present invention, the driving member 12 drives the roller 11 through the 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 motor, and the roller 11 is assembled on the outer rotor, and of course, the outer rotor can be directly configured as the roller 11 for use, as long as the driving of the roller 11 by the driving member 12 can be realized, and the driving method is not limited thereto.

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

As a preferred technical proposal of the embodiment, the two rollers 11 are positioned on the same axis, and the axes of the two rollers 11 are vertical to the running direction F of the fabric 2.

In addition, the straightening module 1 may further include more than three rollers 11, that is, at least one roller 11 is respectively assembled on both sides of the fabric 2 to be conveyed in the width direction, the axes of the rollers 11 located on the same side of the fabric 2 in the width direction are parallel, the rollers 11 located on the same side of the fabric 2 in the width direction may be driven by different driving members 12, or may be driven by the same driving member 12, as long as the same rotating speed of the rollers 11 located on the same side of the fabric 2 in the width direction is achieved.

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. 5, namely, 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. As shown in fig. 6, the fabric 2 before entering the straightening module 1 is in a skew state indicated by a dotted line, and the rotation speeds of the two rollers 11 are controlled so that the rotation speed of the roller 11 on the right side is greater than that of the roller 11 on the left side, thereby straightening the fabric so that the weft of the fabric is perpendicular to the warp of the fabric.

Alternatively, the roller 11 and the fabric 2 may be matched as shown in fig. 4, that is, the roller 11 contacts the fabric 2 from the lower side of the fabric 2, and a roll wrap angle is formed between the roller 11 and the fabric 2, so that the rotation of the roller 11 will inevitably affect the lateral traveling speed of the contacted fabric 2, and the traveling speed control can be realized in such a matched 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.

In order to ensure the correction effect of the roller 11 on the fabric 2, the roller 11 can be provided with a friction peripheral surface 111, so that when the roller 11 is contacted with the fabric 2, the friction is large, the fabric 2 and the roller 11 are not easy to slip, and the roller 11 can accurately control the running speed of the fabric 2 in the radial direction.

Alternatively, running roller 11 still can cooperate the compression roller work, and fabric 2 passes through between running roller 11 and the compression roller, and through setting up the compression roller, the reducible running roller skids between with the fabric to guarantee to correct the module and correct the accurate of fabric.

The embodiment also provides a correction mechanism, including correcting module 1, the fabric 2 enters into correcting module 1 under the effect of fabric guide roll 3, corrects module 1 according to the woof situation differential correction fabric 2 of fabric 2. Specifically, the two ends of the cloth guide roller 3 are rotatably mounted on the roller frame 4, the cloth guide roller 3 is located upstream of the straightening module 1, and the fabric 2 enters the straightening module 1 under the guidance of the cloth guide roller 3.

In order to obtain the weft condition of the fabric 2, the correcting mechanism further comprises a detection module 5, the detection module 5 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 correcting module 1 for acquiring the weft condition of the fabric 2 before entering the 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 at the upstream side and the downstream side of the correction module 1 and respectively acquire the weft yarn conditions of the fabrics 2 before and after entering the correction module 1. 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 51 and a second image capturing device 52, the first image capturing device 51 is located on the upstream side of the rectification module 1, the second image capturing device 52 is located on the downstream side of the rectification module 1, and the first image capturing device 51 and the second image capturing device 52 are selectable but not limited to cameras.

In order to control the operation of the correction module 1 according to the weft condition of the fabric 2, the correction mechanism further comprises a central processing unit, and the central processing unit receives the weft condition of the fabric obtained by the detection module 5 and controls the operation of the correction module 1 according to the weft condition of the fabric.

As a preferred technical solution of this embodiment, a spreader roll 6 is further disposed at the downstream side of the straightening module 1, two ends of the spreader roll 6 are rotatably mounted on the roll frame 4, and the spreader roll 6 is driven by a driving structure to rotate so as to spread the fabric 2. The spreader bar 6 may be a rubber spreader roll, a threaded spreader bar or a telescopic spreader bar, and in this embodiment, the spreader bar 6 is a threaded spreader bar.

The embodiment also provides a correction method, which comprises the following steps:

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

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

Specifically, in step S1, the first image capturing device 51 captures the condition of the weft yarn of the fabric before entering the correction 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 curved according to the received condition of the weft yarn of the fabric, and controls the correction module 1 to perform differential correction on the fabric 2 according to the determination result.

In step S2, the differential dressing fabric 2 of the dressing module 1 includes: 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 adjustment of the walking speeds of the correction module 1 on the two sides of the fabric 2 in the radial direction can be realized.

As a preferable technical solution of this embodiment, the correction method further includes the steps of:

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

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

In step S3, the second image capturing device 52 captures the corrected weft and woven condition of the correction module 1, and transmits the corrected weft and woven condition to the central processing unit, which can adjust the state of the correction module 1 according to the corrected weft and woven condition, so as to dynamically correct the woven. In addition, the central processing unit can compare and analyze the weft conditions of the fabrics acquired by the two image acquisition devices 52 so as to acquire control parameters for different kinds of fabrics, and the correction module 1 can be accurately controlled to correct the differential speed of the fabrics 2 in the subsequent fabric processing process. The straightening module 1 straightening the fabric 2 in step S4 is the same as the method of differentially straightening the fabric 2 by the straightening module 1 in step S2.

The correction method realizes dynamic correction of the fabrics by dynamically controlling the correction module, and can improve the accuracy of fabric correction; the straightening module can form differential speed in three modes to straighten fabrics, and the straightening mode is flexible.

Example two

As shown in fig. 9 to 10, this embodiment is substantially the same as the first embodiment except that a dancer roll is provided upstream of the straightening module 1, the dancer roll is rotatably mounted, and the dancer roll is used to adjust the amount of fabric entering the straightening module 1 and thus the tension entering the straightening module 1.

Further straightening rolls are arranged downstream of the straightening module 1, and comprise a bending roll 7 and/or a straightening roll 8, and the bending roll 7 and/or the straightening roll 8 are rotatably assembled to further straighten 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, at least two bending rolls 7 and at least two straightening rolls 8 are arranged in a parallel and staggered manner, and the 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 straightening module 1, the cloth guide roll 3, the bending roll 7, the skew roller 8, and the spreader roll 6 are all integrally mounted on the roll frame 4, and the fabric 2 sequentially runs in parallel and alternately along the dancer roll, the straightening module 1, the bending roll 7, the skew roller 8, and the spreader 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 acquisition device 51 of the detection module 5 is arranged upstream of the straightening module 1, and the second image acquisition device 52 is arranged downstream of the spreader bar 6.

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 without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (9)

1. The straightening module (1) is arranged in a running path of a fabric (2), and is characterized in that the straightening module (1) comprises rollers (11), at least one roller (11) is respectively arranged at two sides of the fabric (2) to be conveyed in the width direction, the outer peripheral surfaces of the rollers (11) are in contact with the fabric (2), and the rollers (11) at two sides of the fabric (2) to be conveyed in the width direction are respectively arranged to be driven to rotate independently so as to respectively control the running speed of the fabric (2) in the width direction, so that differential straightening is realized.

2. Straightening module (1) according to claim 1, characterized in that the roller (11) is fitted with a pressure roller, between which roller (11) the fabric (2) passes.

3. A straightening module (1) according to claim 1, characterized in that the roller (11) has a friction peripheral surface (111).

4. An orthotic mechanism, comprising an orthotic module (1) according to any one of claims 1 to 3.

5. A corrective mechanism according to claim 4, characterized in that it also comprises a dancer roller, upstream of the rollers (11), which dancer roller regulates the amount of fabric entering the two rollers (11) in order to tension the fabric (2).

6. A correction mechanism according to claim 4 or 5, characterized in that it further comprises a bending roll (7) and/or a straightening roll (8), said bending roll (7) and/or straightening roll (8) being located downstream of said roller wheel (11), said bending roll (7) and/or straightening roll (8) being rotatably mounted.

7. The straightening mechanism according to claim 4, characterized by further comprising a roller frame (4), wherein the speed regulating roller, the straightening module (1), the expander roller (6), the bending roller (7) and the straightening roll (8) are integrally mounted on the roller frame (4), and the fabrics (2) sequentially run in parallel and staggered along the speed regulating roller, the straightening module (1), the bending roller (7) and the straightening roll (8) and then are led out.

8. A corrective mechanism according to claim 4, characterized in that it further comprises a detection module (5), said detection module (5) comprising at least one image acquisition device to acquire the condition of the weft of the fabric, at least one said image acquisition device being located on the upstream side of the two rollers (11); 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 two rollers (11).

9. The straightening mechanism according to claim 8, further comprising a central processing unit, wherein the central processing unit acquires the condition of the woven fabric weft yarn acquired by the image acquisition device and controls the rotating speed of the rollers (11) on both sides of the woven fabric in the radial direction according to the condition of the woven fabric weft yarn.

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