Fabric information acquisition mechanism and use method and weft alignment device using the same

Abstract

The application discloses a fabric information collecting mechanism and a use method and an entire weft arrangement device using the same. The fabric information collecting mechanism comprises a movable base, a plurality of fabric information collecting devices arranged along a transverse direction and spaced apart on the movable base, and a power structure connected with the movable base to drive the movable base to perform transverse reciprocating movement. The fabric information collecting mechanism further comprises an edge detecting and tracking device for detecting at least one transverse edge of the fabric. The application can improve the accuracy of the information collected by the fabric information collecting mechanism to optimize the entire weft arrangement effect of the entire weft arrangement device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing and dyeing equipment, and particularly relates to a fabric information acquisition mechanism and a use method thereof and a weft straightening device using the same. BACKGROUND

[0002] During weaving and post-finishing processes, due to the influence of equipment precision errors, various mechanical movements and human operation, weft skew, weft bending and pattern deformation often occur, affecting subsequent processing, thereby affecting the quality of finished fabric and reducing the use value of textiles. Therefore, a weft straightening machine is needed to correct weft skew, weft bending and pattern deformation.

[0003] With the continuous development of computer technology and image processing technology, new vitality has been injected into the traditional textile field, and the textile industry has also gradually developed towards automation and intelligence. Textile automation and intelligence cover many aspects of artificial intelligence in textile design and detection. In particular, computer vision image processing and analysis technology has been widely used in the textile industry. The use of computer vision image processing and analysis technology for fabric structure type identification, i.e. fabric classification, provides an important data basis for yarn appearance quality detection, fabric surface defect detection, fabric density determination and weft and pattern straightening machines.

[0004] The existing fabric weft straightening method first acquires fabric images through the industrial camera of the weft straightening machine, then performs fabric texture recognition and judgment processing on the fabric images collected by the industrial camera through the computer vision image processing and analysis software built in the industrial control machine of the weft straightening machine, then determines the fabric classification according to the judgment result, and according to the determined fabric classification, calls the operation processing template matched therewith to perform operation processing, obtains the weft straightening parameters of the fabric, and finally the weft straightening machine corrects the weft skew and weft bending of the fabric through the correction device according to the weft straightening parameters. As can be seen, the accuracy of the industrial camera in collecting fabric images is extremely important in the weft straightening method, because if the industrial camera collects fabric images with errors, the operation processing template called by the industrial control machine according to the fabric classification will also be wrong, resulting in completely wrong weft straightening parameters, and ultimately leading to errors in the correction device correcting the weft skew and weft bending of the fabric according to the weft straightening parameters, thereby causing quality accidents and resulting in waste products.

[0005] Specifically, during the weft straightening process, considering the need of the weft straightening device to adapt to the weft straightening of fabrics of various width sizes, the patent with the publication number CN211368161U discloses a selvedge tracking device for a weft straightening machine detection probe, which can adjust the positions of multiple detection probes according to the information of a selvedge tracking unit that detects the width edges of the fabric, and the multiple detection probes are symmetrically distributed with the center of the width direction of the weft straightening machine, so that the multiple detection probes can be retracted inward or expanded outward with the center of the weft straightening machine as the symmetric point, so that the multiple detection probes can adjust their detection positions according to the width size of the fabric, so that each detection probe can correspond to the appropriate detection area of the fabric.

[0006] The above technical solution is found to have the following defects in actual use. In detail, since the overall length of the weft straightening roller (including the weft straightening bending roller and the weft straightening inclined roller) on the weft straightening device is greater than the width size of any fabric, and the transverse position of the fabric on the weft straightening roller is not fixed during the actual weft straightening process, that is, the fabric has a floating condition along the transverse direction of the weft straightening roller during the actual weft straightening process. The existence of this condition makes the center of the fabric not the center of the weft straightening roller, but the entire fabric may be biased to one side of the center of the weft straightening roller. At this time, it is impossible to effectively ensure the integrity and accuracy of the images detected by the multiple detection probes by retracting or expanding them inward or outward with the center of the weft straightening machine as the symmetric point, thereby directly affecting the weft straightening effect of the fabric. Therefore, the detection probe disclosed in the prior art needs to be further optimized to not only adapt to the detection size of fabrics of different width sizes, but also adapt to the transverse floating problem of the fabric during the weft straightening process, so as to ensure accurate collection of fabric information to ensure the weft straightening effect of the fabric. SUMMARY

[0007] The first object of the present application is to provide a fabric information acquisition mechanism to solve the technical problem of improving the accuracy of information collected by the fabric information acquisition mechanism.

[0008] The second object of the present application is to provide a use method of a fabric information acquisition mechanism to solve the technical problem of improving the accuracy of information collected by the fabric information acquisition mechanism.

[0009] The third object of the present application is to provide a weft straightening device to solve the technical problem of optimizing the weft straightening effect of the weft straightening device.

[0010] The fabric information acquisition mechanism of the present application is implemented as follows:

[0011] A fabric information collecting mechanism suitable for a weft straightening device, comprising: a movable base, a plurality of fabric information collecting devices arranged along a transverse direction on the movable base, and a power structure connected to the movable base to drive the movable base to move back and forth along the transverse direction; and

[0012] The fabric information collecting mechanism further comprises an edge detection tracking device for detecting at least one transverse edge of the fabric.

[0013] In an optional embodiment of the present application, the edge detection tracking device is further arranged on the fabric information collecting device at at least one end of the plurality of fabric information collecting devices.

[0014] In an optional embodiment of the present application, the edge detection tracking device is further arranged on the fabric information collecting device at both ends of the plurality of fabric information collecting devices.

[0015] In an optional embodiment of the present application, the edge detection tracking device is further arranged on the fabric information collecting device at any one end of the plurality of fabric information collecting devices.

[0016] The two edge detection tracking devices are arranged along the moving direction of the movable base, and the distance between the two edge detection tracking devices is 5-200 mm.

[0017] In an optional embodiment of the present application, the plurality of fabric information collecting devices are in sliding fit with the movable base, so that the plurality of fabric information collecting devices are adapted to be retracted inwardly or opened outwardly with the center of the movable base as the symmetry point.

[0018] In an optional embodiment of the present application, the power structure comprises a transmission belt or a transmission chain connected to the movable base, and a driving assembly adapted to drive the transmission belt or the transmission chain to operate.

[0019] In an optional embodiment of the present application, the bottom end of the movable base is further provided with a slide rail structure in sliding fit with the movable base.

[0020] In an optional embodiment of the present application, the plurality of fabric information collecting devices are further sleeved on a screw rod, and the plurality of fabric information collecting devices are adapted to move along the axial direction of the screw rod by rotating the screw rod.

[0021] The use method of the fabric information collecting mechanism is implemented as follows:

[0022] The use method of a fabric information collecting mechanism, comprising: a weft straightening device suitable for the fabric information collecting mechanism; comprising:

[0023] Step S1: multiple fabric information acquisition devices simultaneously acquire fabric pattern or fabric texture information on the whole weft device, and at the same time, the edge tracking device acquires information of at least one lateral edge of the fabric in real time;

[0024] Step S2: the motion of the movable base is controlled according to the information of the lateral edge of the fabric acquired by the edge tracking device to realize the following motion of the multiple fabric information acquisition devices to the fabric.

[0025] The whole weft device of the present application is realized as follows:

[0026] A whole weft device, comprising a whole weft mechanism and the fabric information acquisition mechanism arranged on at least one side of the fabric.

[0027] By adopting the above technical scheme, the present application has the following beneficial effects: the fabric information acquisition mechanism, the use method and the whole weft device using the same of the present application acquire information of at least one lateral edge of the fabric in real time through the edge tracking device, control the lateral motion of the movable base along the fabric in real time, and drive the multiple fabric information acquisition devices to move synchronously through the lateral motion of the movable base, so that the multiple fabric information acquisition devices can always follow the motion of the fabric to correct the working positions of the multiple fabric information acquisition devices and ensure the accuracy of the fabric information acquired by the multiple fabric information acquisition devices. That is, through the "following" cooperation of the multiple information acquisition devices and the fabric, the multiple information acquisition devices are always distributed on the appropriate detection area of the fabric, so as to ensure the accuracy of the acquired information and guarantee the whole weft effect.

[0028] Furthermore, the multiple fabric information acquisition devices are adjusted following the movable base as a whole, rather than being adjusted respectively, and the present application has the advantages of sensitive adjustment and fast adjustment speed through the above structure, so that the phenomenon of information acquisition error caused by the lag in the adjustment process can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 The first perspective structural diagram of the fabric information acquisition mechanism of the present application applied in the whole weft device;

[0030] Fig. 2 The second perspective structural diagram of the fabric information acquisition mechanism of the present application applied in the whole weft device.

[0031] In the figure: support 1, movable base 2, slide rail structure 3, fabric information acquisition device 4, transmission belt 5, edge tracking device 6, screw rod 7. DETAILED DESCRIPTION

[0032] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments and in conjunction with the accompanying drawings.

[0033] Embodiment 1:

[0034] Please refer to Figs. 1-2 As shown in the drawings, the embodiment provides a fabric information acquisition mechanism, which is suitable for a weft alignment device. Specifically, the fabric information acquisition mechanism of the embodiment comprises a movable base 2, a plurality of fabric information acquisition devices 4 arranged along the lateral direction at intervals on the movable base 2, and a power structure connected to the movable base 2 to drive the movable base 2 to move laterally. Specifically, since the plurality of fabric information acquisition devices 4 are all arranged on the movable base 2, the synchronous movement of the plurality of fabric information acquisition devices 4 can be realized by the movement of the movable base 2.

[0035] The fabric information acquisition device 4 described above can adopt a camera or an image scanner. The embodiment does not make absolute limitation on this, that is, as long as the structure that can accurately acquire the weft skew, weft bending and pattern deformation problems of the fabric meets the use requirement of the embodiment, so the structure is simply referred to as the fabric information acquisition device 4 in the embodiment.

[0036] It should be noted that in order to make the fabric information acquisition mechanism suitable for fabrics of different width sizes in the prior art, the plurality of fabric information acquisition devices 4 in the embodiment can also adjust the distance between every two adjacent fabric information acquisition devices 4, that is, the plurality of fabric information acquisition devices 4 in the embodiment can also be contracted inward or expanded outward with the center of the movable base 2 as the symmetry point. For this, the fabric information acquisition mechanism of the embodiment is also designed as follows: the plurality of fabric information acquisition devices 4 are also sleeved on a lead screw 7, and the plurality of fabric information acquisition devices are adapted to move along the axial direction of the lead screw 7 by rotating the lead screw 7. Specifically, the cooperation structure of the lead screw 7 and the plurality of fabric information acquisition devices 4 can be selected by any mature means in the prior art, for example, but not limited to, the structure disclosed in the patent with the publication number CN211368161U. That is, as long as the structure that can make the plurality of fabric information acquisition devices 4 adjust the distance between two adjacent fabric information acquisition devices 4 by moving along the lateral direction of the fabric meets the use requirement of the embodiment. Of course, it should be noted here that no matter how the plurality of fabric information acquisition devices 4 move and how far the plurality of fabric information acquisition devices 4 move, the plurality of fabric information acquisition devices 4 can only move on the movable base 2 and cannot move away from the movable base 2 due to the movement.

[0037] Therefore, on the basis of the above structure, it is necessary to point out that the plurality of fabric collecting devices of the embodiment are in sliding fit with the movable base 2, specifically whether the plurality of fabric collecting devices are directly slidingly connected with the movable base 2 or are transitionally connected through an adaptive sliding groove-rail structure. The embodiment does not make absolute limitation.

[0038] Next to be explained is that, considering the limitation of the movement trajectory of the movable base 2, so that the movable base 2 only produces lateral movement along the fabric, and does not appear to deviate in other directions, the embodiment further configures a sliding rail structure 3 which is in sliding fit with the movable base 2 at the bottom end of the movable base 2. Part of the sliding rail structure 3 is connected with the support 1 of the weft straightening device, and the other part is used to connect the movable base 2, so that the movable base 2 can move laterally along the fabric relative to the support 1 of the weft straightening device.

[0039] It should be noted here that there are many ways to achieve the driving mode of the specific lateral movement of the movable base 2 along the fabric, such as a lead screw module or a hydraulic / pneumatic linear motion driver. The embodiment does not make absolute limitation. Here, an optional case is illustrated by combining the drawings, and the lateral movement of the movable base 2 is achieved through a transmission belt 5 or a transmission chain. That is, the power structure in the embodiment includes a transmission belt 5 or a transmission chain connected with the movable base 2, and a driving assembly adapted to drive the transmission belt 5 or the transmission chain to operate. The driving assembly here is optionally a speed reducer motor capable of driving the transmission belt 5 or the transmission chain to operate. That is, the movable base 2 is directly or through a connecting piece to achieve the fixed connection with the transmission belt 5 or the transmission chain, and the operation of the transmission belt 5 or the transmission chain drives the synchronous movement of the movable base 2.

[0040] Next to be explained is that the fabric information collecting mechanism of the embodiment further includes an edge detection tracking device 6 for detecting at least one lateral edge of the fabric. Specifically, there can be several cases for the setting position and number of the edge detection tracking device 6.

[0041] The first case: the edge detection tracking device 6 is set to two, and the two edge detection tracking devices 6 are respectively arranged on the two fabric information collecting devices 4 at both ends of the plurality of fabric information collecting devices 4. The two edge detection tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric.

[0042] It should be noted here that the assembly structure between the edge detection tracking device 6 and the fabric information collecting device 4 here can optionally adopt, for example but not limited to, the structure disclosed in the patent with publication number CN211368161U. The embodiment does not make absolute limitation.

[0043] It needs to be explained that the two fabric information acquisition devices 4 at both ends of the plurality of fabric information acquisition devices 4 are respectively used to collect the weft skew, weft bending and pattern deformation information on the two edge parts of the fabric close to the transverse direction of the fabric. And the two edge tracking devices 6 are corresponding to the two edges of the transverse direction of the fabric, that is, when the plurality of fabric information acquisition devices 4 are in a normal collection state, the two edge tracking devices 6 will not be blocked by the fabric. Only when the fabric floats in the transverse direction on the weft straightening device, at least one of the two edge tracking devices 6 will be blocked by the fabric, that is, whether the edge tracking device 6 is blocked can indicate whether the fabric has floated. More specifically, when the fabric floats in the transverse direction, the edge tracking device 6 on the side corresponding to the floating direction of the fabric will be blocked by the fabric. At this time, the plurality of fabric information acquisition devices 4 and the edge tracking device 6 are driven by the movable base 2 to move towards the floating direction of the fabric, that is, the movable base 2 drives the fabric information acquisition devices 4 and the edge tracking device 6 to move relative to the fabric in a "follow-up" manner to remove the blockage of the fabric to the above-mentioned blocked edge tracking device 6. Thus, when the two edge tracking devices 6 are no longer blocked by the fabric, the movable base 2 stops moving.

[0044] In this way, the left and right transverse edge information of the fabric is collected in real time by the two edge tracking devices 6 to control the transverse movement of the movable base 2 along the fabric in real time, and the transverse movement of the movable base 2 drives the plurality of fabric information acquisition devices 4 to move synchronously, so that the plurality of fabric information acquisition devices 4 can always "follow" the fabric to ensure the accuracy of the collected information. That is, through the "follow-up" cooperation of the plurality of information acquisition devices and the fabric, the plurality of information acquisition devices are always distributed on the appropriate detection area of the fabric to ensure the accuracy of the collected information and ensure the subsequent weft straightening effect.

[0045] It also needs to be further explained that the edge tracking device 6 in this case can be selected, for example, but not limited to, a photoelectric detection sensor or a contact sensor.

[0046] Finally, it is necessary to explain that the edge tracking device 6 in this case is arranged on the fabric information acquisition device 4. In this structure, when the weft straightening device is used to adapt to different fabric widths for weft straightening operation and needs to adjust the distance between the plurality of fabric information acquisition devices 4, the edge tracking device 6 can be simultaneously driven to adjust the position to automatically adjust the corresponding effect with the transverse edge of the fabric.

[0047] The second case: the general situation of this case is the same as the first case, and two edge tracking devices 6 are also arranged, and the two edge tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric. The difference from the first case is that the two edge tracking devices 6 in this case are arranged on the screw rod 7, and the two edge tracking devices 6 can move along the axial direction of the screw rod 7 when the screw rod 7 rotates.

[0048] When the plurality of fabric information acquisition devices 4 are retracted inward or expanded outward with the center of the movable base 2 as the symmetric point, the two edge tracking devices 6 can also move along the axial direction of the screw rod 7 synchronously, so that the edge tracking devices 6 can automatically adjust the corresponding effect with the lateral edges of the fabric.

[0049] The third case: the general situation of this case is the same as the first case, and two edge tracking devices 6 are also arranged, and the two edge tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric. The difference from the first case is that the two edge tracking devices 6 in this case are arranged on the movable base 2.

[0050] It should be noted that the edge tracking device 6 and the movable base 2 in this case are in a floating assembly structure, so that when the fabric aligning device is used to align the fabric of different widths, the positions of the two edge tracking devices 6 on the movable base 2 can be manually adjusted, so that the two edge tracking devices 6 can correspond to the two lateral edges of the fabric one by one.

[0051] The fourth case: the edge tracking device 6 is arranged as two, and the two edge tracking devices 6 are arranged on the fabric information acquisition device 4 at any one end (which can be the left end or the right end, and the present embodiment does not make absolute limitation) of the plurality of fabric information acquisition devices 4. The two edge tracking devices 6 are used for tracking detection of one of the lateral edges of the fabric.

[0052] It should be noted that the two edge tracking devices 6 in this case are arranged along the moving direction of the movable base, and the interval distance between the two edge tracking devices 6 is 5-200mm. Under this structure, one of the edge tracking devices 6 is directly located beside the fabric information acquisition device 4, and the other edge tracking device 6 is not directly located beside the fabric information acquisition device 4. For the two edge tracking devices 6, they can be assembled and fixed with the fabric information acquisition device 4 through the same mounting bracket, as long as the interval position between the two edge tracking devices 6 is reserved.

[0053] The two edge tracking devices 6 in this case are corresponding to one of the lateral edges of the fabric, and when the plurality of fabric information acquisition devices 4 are kept in the normal acquisition state, the one of the two edge tracking devices 6 that is directly located beside the fabric information acquisition device 4 will be blocked by the fabric, while the other one of the two edge tracking devices 6 will not be blocked by the fabric. That is, when the plurality of fabric information acquisition devices 4 are kept in the normal acquisition state, the lateral edge of the fabric corresponding to the edge tracking device 6 is located in the area between the two edge tracking devices 6.

[0054] When the fabric has lateral floating on the beaming device, when the fabric moves towards the unblocked edge tracking device 6, both of the two edge tracking devices 6 will be blocked by the fabric as the fabric moves laterally. When the fabric moves away from the edge tracking device 6, the one of the two edge tracking devices 6 that is initially blocked by the fabric will gradually be unblocked by the fabric as the fabric moves laterally, and finally both of the two edge tracking devices 6 will not be blocked by the fabric. That is, whether the fabric has floating can be determined by whether the two edge tracking devices 6 are blocked. More specifically, when the fabric has lateral floating, the plurality of fabric information acquisition devices 4 and the edge tracking devices 6 are driven by the movable base 2 to move towards the floating direction of the fabric, that is, the movable base 2 drives the fabric information acquisition devices 4 and the edge tracking devices 6 to move in a "follow" manner relative to the fabric. Therefore, when the one of the two edge tracking devices 6 that is directly located beside the fabric information acquisition device 4 is blocked by the fabric, while the other one of the two edge tracking devices 6 is not blocked by the fabric, the movable base 2 stops moving.

[0055] In this way, the information of one of the lateral edges of the fabric is acquired in real time by the two edge tracking devices 6, the lateral movement of the movable base 2 is controlled in real time, and the plurality of fabric information acquisition devices 4 are driven to move synchronously by the lateral movement of the movable base 2, so that the plurality of fabric information acquisition devices 4 can always "follow" the fabric to ensure the accuracy of the acquired information. That is, the plurality of information acquisition devices are always distributed on the appropriate detection area of the fabric by the "follow" cooperation between the plurality of information acquisition devices and the fabric, so as to ensure the accuracy of the acquired information and ensure the subsequent beaming effect of the fabric.

[0056] It should be further noted that the edge tracking device 6 in this case can be selected, for example, but not limited to, a photoelectric detection sensor.

[0057] It is also necessary to point out that the edge tracking device 6 in this case is arranged on the fabric information acquisition device 4, and in this structure, when the filling device is used to adapt to different fabric widths for filling operation, the distance between the plurality of fabric information acquisition devices 4 needs to be adjusted, and the edge tracking device 6 can be adjusted in position synchronously to make the edge tracking device 6 automatically adjust the corresponding effect with the lateral edge of the fabric.

[0058] The fifth case: The general situation of this case is the same as the fourth case, that is, two edge tracking devices 6 are arranged, which are used to track and detect one lateral edge of the fabric. The difference from the fourth case is that the two edge tracking devices 6 in this case are arranged on the lead screw 7, and the two edge tracking devices 6 can move axially along the lead screw 7 with the rotation of the lead screw 7.

[0059] The edge tracking device 6 in this structure can be retracted inward or expanded outward with the rotation of the lead screw 7 with the center of the movable base 2 as the symmetric point, and the two edge tracking devices 6 can also move axially along the lead screw 7 synchronously to make the edge tracking device 6 automatically adjust the corresponding effect with the lateral edge of the fabric.

[0060] The sixth case: The general situation of this case is the same as the fourth case, that is, two edge tracking devices 6 are arranged, which are used to track and detect one lateral edge of the fabric. The difference from the fourth case is that the two edge tracking devices 6 in this case are arranged on the movable base 2.

[0061] It is necessary to point out that the edge tracking device 6 in this case is arranged on the movable base 2.

[0062] Finally, it is also necessary to point out that the fabric information acquisition mechanism of the embodiment that the plurality of fabric information acquisition devices 4 and the edge tracking device 6 in the embodiment are electrically connected to a controller, that is, the working state of the edge tracking device 6 and the fabric information acquisition device 4 can be controlled through the controller. And on this basis, the driving assembly for driving the transmission belt 5 or the transmission chain to operate in the embodiment is also directly controlled by the controller, so that the controller can adjust the movement of the movable base 2 in real time according to the information collected by the edge tracking device 6.

[0063] Embodiment 2:

[0064] Based on the fabric information acquisition mechanism of embodiment 1, the embodiment provides a method for using the fabric information acquisition mechanism, which is suitable for a weft insertion device and adopts the fabric information acquisition mechanism of embodiment 1; the method comprises the following steps:

[0065] Step S1: simultaneously collecting fabric pattern or fabric texture information on the weft insertion device by the plurality of fabric information acquisition devices 4, and simultaneously collecting information of at least one lateral edge of the fabric by the edge tracking device 6;

[0066] Step S2: controlling the movement of the movable base 2 according to the information of the lateral edge of the fabric collected by the edge tracking device 6 to realize the following movement of the plurality of fabric information acquisition devices 4 to the fabric.

[0067] It should be noted that, before step S1, the edge information of the fabric is collected by the two edge tracking devices 6 to determine the width of the fabric, so that the plurality of fabric information acquisition devices 4 are retracted inward or expanded outward with the center of the movable base 2 as the symmetric point, so that the plurality of fabric information acquisition devices 4 can find the corresponding detection position according to the width of the fabric. After this step is completed, step S1 of the embodiment is started, that is, the process of retracting or expanding the plurality of fabric information acquisition devices 4 inward or outward with the center of the movable base 2 as the symmetric point is the pre-process of the specific weft insertion operation.

[0068] Further, there are six implementation cases in step S2:

[0069] The first case: the edge tracking device 6 is provided as two, and the two edge tracking devices 6 are respectively arranged on the two fabric information acquisition devices 4 at the two ends of the plurality of fabric information acquisition devices 4. The two edge tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric.

[0070] It should be noted here that the assembly structure between the edge tracking device 6 and the fabric information acquisition device 4 here can be selected, for example, but not limited to, the structure disclosed in the patent with publication number CN211368161U, and the embodiment is not absolutely limited to this.

[0071] It needs to be explained that the two fabric information acquisition devices 4 at both ends of the plurality of fabric information acquisition devices 4 are respectively used to collect the weft skew, weft bending and pattern deformation information on the two edge parts of the fabric close to the transverse direction of the fabric. And the two edge tracking devices 6 are corresponding to the two edges of the transverse direction of the fabric, that is, when the plurality of fabric information acquisition devices 4 are in a normal collection state, the two edge tracking devices 6 will not be blocked by the fabric. Only when the fabric floats in the transverse direction on the weft straightening device, at least one of the two edge tracking devices 6 will be blocked by the fabric, that is, whether the edge tracking device 6 is blocked can indicate whether the fabric has floated. More specifically, when the fabric floats in the transverse direction, the edge tracking device 6 on the side corresponding to the floating direction of the fabric will be blocked by the fabric. At this time, the movable base 2 drives the plurality of fabric information acquisition devices 4 and the edge tracking device 6 to move towards the floating direction of the fabric, that is, the movable base 2 drives the fabric information acquisition devices 4 and the edge tracking device 6 to move relative to the fabric in a "follow-up" manner to remove the blockage of the fabric to the above-mentioned blocked edge tracking device 6. Thus, when the two edge tracking devices 6 are no longer blocked by the fabric, the movable base 2 stops moving.

[0072] In this way, the left and right transverse edge information of the fabric is collected in real time by the two edge tracking devices 6 to control the transverse movement of the movable base 2 along the fabric in real time, and the transverse movement of the movable base 2 drives the plurality of fabric information acquisition devices 4 to move synchronously, so that the plurality of fabric information acquisition devices 4 can always "follow" the fabric to ensure the accuracy of the collected information. That is, through the "follow-up" cooperation of the plurality of information acquisition devices and the fabric, the plurality of information acquisition devices are always distributed on the appropriate detection area of the fabric to ensure the accuracy of the collected information and ensure the subsequent weft straightening effect.

[0073] It also needs to be further explained that the edge tracking device 6 in this case can be selected, for example, but not limited to, a photoelectric detection sensor or a contact sensor.

[0074] Finally, it is necessary to point out that the edge tracking device 6 in this case is arranged on the fabric information acquisition device 4. In this structure, when the weft straightening device is used to adapt to different fabric widths for weft straightening operation and needs to adjust the distance between the plurality of fabric information acquisition devices 4, the edge tracking device 6 can be simultaneously driven to adjust the position to automatically adjust the corresponding effect with the transverse edge of the fabric.

[0075] The second case: the general situation of this case is the same as the first case, and two edge tracking devices 6 are also arranged, and the two edge tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric. The difference from the first case is that the two edge tracking devices 6 in this case are arranged on the screw rod 7, and the two edge tracking devices 6 can move along the axial direction of the screw rod 7 with the rotation of the screw rod 7.

[0076] When the plurality of fabric information acquisition devices 4 are retracted inward or expanded outward with the rotation of the screw rod 7 with the center of the movable base 2 as the symmetric point, the two edge tracking devices 6 can also move along the axial direction of the screw rod 7 synchronously, so that the edge tracking devices 6 can automatically adjust the corresponding effect with the lateral edges of the fabric.

[0077] The third case: the general situation of this case is the same as the first case, and two edge tracking devices 6 are also arranged, and the two edge tracking devices 6 are respectively used for tracking detection of the two lateral edges of the fabric. The difference from the first case is that the two edge tracking devices 6 in this case are arranged on the movable base 2.

[0078] It should be noted that the edge tracking device 6 in this case is in a floating assembly structure with the movable base 2, so that when the fabric aligning device is used to align the fabric of different width sizes, the positions of the two edge tracking devices 6 on the movable base 2 can be manually adjusted, so that the two edge tracking devices 6 can correspond to the two lateral edges of the fabric one by one.

[0079] The fourth case: the edge tracking device 6 is arranged as two, and the two edge tracking devices 6 are arranged on the fabric information acquisition device 4 at any one end (which can be the left end or the right end, and the embodiment does not make absolute limitation) of the plurality of fabric information acquisition devices 4. The two edge tracking devices 6 are used for tracking detection of one of the lateral edges of the fabric.

[0080] It should be noted that the two edge tracking devices 6 in this case are arranged along the moving direction of the movable base, and the interval distance between the two edge tracking devices 6 is 5-200mm. Under this structure, one of the edge tracking devices 6 is directly located beside the fabric information acquisition device 4, and the other edge tracking device 6 is not directly located beside the fabric information acquisition device 4. For the two edge tracking devices 6, they can be assembled and fixed with the fabric information acquisition device 4 through the same mounting bracket, as long as the interval position between the two edge tracking devices 6 is reserved.

[0081] The two edge tracking devices 6 in this case are corresponding to one of the lateral edges of the fabric, and when the plurality of fabric information acquisition devices 4 are kept in the normal acquisition state, the one of the two edge tracking devices 6 that is directly located beside the fabric information acquisition device 4 will be blocked by the fabric, while the other one of the two edge tracking devices 6 will not be blocked by the fabric. That is, when the plurality of fabric information acquisition devices 4 are kept in the normal acquisition state, the lateral edge of the fabric corresponding to the edge tracking device 6 is located in the area between the two edge tracking devices 6.

[0082] When the fabric has lateral floating on the beaming device, when the fabric moves towards the unblocked edge tracking device 6, both of the two edge tracking devices 6 will be blocked by the fabric as the fabric moves laterally. When the fabric moves away from the edge tracking device 6, the one of the two edge tracking devices 6 that is initially blocked by the fabric will gradually be unblocked by the fabric as the fabric moves laterally, and finally both of the two edge tracking devices 6 will not be blocked by the fabric. That is, whether the fabric has floating can be determined by whether the two edge tracking devices 6 are blocked. More specifically, when the fabric has lateral floating, the plurality of fabric information acquisition devices 4 and the edge tracking devices 6 are driven by the movable base 2 to move towards the floating direction of the fabric, that is, the movable base 2 drives the fabric information acquisition devices 4 and the edge tracking devices 6 to move in a "follow" manner relative to the fabric. Therefore, when the one of the two edge tracking devices 6 that is directly located beside the fabric information acquisition device 4 is blocked by the fabric, while the other one of the two edge tracking devices 6 is not blocked by the fabric, the movable base 2 stops moving.

[0083] In this way, the information of one of the lateral edges of the fabric is acquired in real time by the two edge tracking devices 6, the lateral movement of the movable base 2 is controlled in real time, and the plurality of fabric information acquisition devices 4 are driven to move synchronously by the lateral movement of the movable base 2, so that the plurality of fabric information acquisition devices 4 can always "follow" the fabric to ensure the accuracy of the acquired information. That is, the plurality of information acquisition devices are always distributed on the appropriate detection area of the fabric by the "follow" cooperation between the plurality of information acquisition devices and the fabric, so as to ensure the accuracy of the acquired information and ensure the subsequent beaming effect of the fabric.

[0084] It should be further noted that the edge tracking device 6 in this case can be selected, for example, but not limited to, a photoelectric detection sensor.

[0085] It is also necessary to point out that the edge tracking device 6 in this case is arranged on the fabric information acquisition device 4, and in this structure, when the whole weft device is used to adapt to different fabric widths for wefting operation, and the distance between the fabric information acquisition devices 4 needs to be adjusted, the edge tracking device 6 can be driven synchronously to adjust the position so that the edge tracking device 6 can automatically adjust the corresponding effect with the lateral edge of the fabric.

[0086] The fifth case: the general situation of this case is the same as the fourth case, and two edge tracking devices 6 are arranged, which are used to track and detect one lateral edge of the fabric. The difference from the fourth case is that the two edge tracking devices 6 in this case are arranged on the screw rod 7, and the two edge tracking devices 6 can move along the axial direction of the screw rod 7 with the rotation of the screw rod 7.

[0087] When the multiple fabric information acquisition devices 4 are retracted inward or expanded outward with the rotation of the screw rod 7 with the center of the movable base 2 as the symmetric point, the two edge tracking devices 6 can also move synchronously along the axial direction of the screw rod 7 so that the edge tracking device 6 can automatically adjust the corresponding effect with the lateral edge of the fabric.

[0088] The sixth case: the general situation of this case is the same as the fourth case, and two edge tracking devices 6 are arranged, which are used to track and detect one lateral edge of the fabric. The difference from the fourth case is that the two edge tracking devices 6 in this case are arranged on the movable base 2.

[0089] It is necessary to point out that the edge tracking device 6 in this case is arranged on the movable base 2, and in this structure, when the whole weft device is used to adapt to different fabric widths for wefting operation, the position of the two edge tracking devices 6 on the movable base 2 can be manually adjusted so that the two edge tracking devices 6 can correspond to one lateral edge of the fabric.

[0090] Embodiment 3:

[0091] On the basis of the fabric information acquisition mechanism of embodiment 1, this embodiment provides a whole weft device, which comprises a whole weft mechanism and at least one fabric information acquisition mechanism as described in embodiment 1 arranged on one side of the fabric.

[0092] In a preferred case, one fabric information acquisition mechanism can be arranged on each side of the fabric, that is, a total of two fabric information acquisition mechanisms are arranged to effectively optimize the wefting effect of the fabric, and the two fabric information acquisition mechanisms are respectively located on the two sides of the fabric detection channel.

[0093] It should be noted that the weft straightening mechanism adopted by the weft straightening device in the embodiment can be any mature technical means in the prior art, and the embodiment is not absolutely limited to this, and thus the specific structure is not described again.

[0094] The above specific embodiments further detail the purposes, technical solutions and advantages of the present application, and it should be understood that the above are only specific embodiments of the present application and are not used to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0095] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as limiting the present application by indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0096] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as limiting the present application by indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0098] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the parts must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0099] In the present application, unless specifically stated and limited otherwise, a first feature on or under a second feature can include the first and second features being directly in contact, or can include the first and second features not being directly in contact but being in contact through another feature between them. Furthermore, a first feature on, above and over a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature under, below and under a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

Claims

1. A fabric information acquisition mechanism adapted for use in a weft straightening device, characterized by, The fabric information acquisition mechanism comprises: an active base, a plurality of fabric information acquisition devices arranged in transverse direction on the active base, and a power structure connected to the active base to drive the active base to move in transverse direction; and the fabric information acquisition mechanism further comprises an edge detection and tracking device for detecting at least one lateral edge of the fabric; each of the plurality of fabric information acquisition devices is in sliding fit with the active base so that the plurality of fabric information acquisition devices is adapted to contract inward or expand outward with the center of the active base as the symmetry point; the power structure comprises a transmission belt or chain connected to the active base, and a driving assembly adapted to drive the transmission belt or chain to operate; the bottom end of the active base is further provided with a slide rail structure in sliding fit with the active base; when the fabric floats in transverse direction, the edge detection and tracking device on the side corresponding to the floating direction of the fabric is blocked by the fabric, at this time, the active base drives the plurality of fabric information acquisition devices and the edge detection and tracking device to move in the floating direction of the fabric; the active base drives the fabric information acquisition devices and the edge detection and tracking device to move relative to the fabric to remove the blockage of the fabric to the blocked edge detection and tracking device, and when neither of the two edge detection and tracking devices is blocked by the fabric, the active base stops moving.

2. The fabric information gathering mechanism of claim 1, wherein, the edge detection and tracking device is further provided on the fabric information acquisition device at at least one end of the plurality of fabric information acquisition devices.

3. The fabric information gathering mechanism of claim 2, wherein, two edge detection and tracking devices are further respectively provided on the fabric information acquisition devices at both ends of the plurality of fabric information acquisition devices.

4. The fabric information gathering mechanism of claim 2, wherein, two edge detection and tracking devices are further provided on the fabric information acquisition device at any one end of the plurality of fabric information acquisition devices, and the two edge detection and tracking devices are arranged in parallel to the moving direction of the active base, and the distance between the two edge detection and tracking devices is 5-200 mm.

5. The fabric information gathering mechanism according to any one of claims 1 to 4, characterized in that, the plurality of fabric information acquisition devices are further sleeved on a screw rod, and the plurality of fabric information acquisition devices are adapted to move along the axial direction of the screw rod by rotating the screw rod.

6. A method of using a fabric information gathering mechanism adapted for use in a weft straightener, the method comprising: The fabric information acquisition mechanism of claim 5 comprises:

7. An arrangement for straightening weft threads, characterized in that step S1: the plurality of fabric information acquisition devices simultaneously acquire the fabric pattern or fabric texture information on the whole-winding device, and at the same time, the edge detection and tracking device acquires the information of at least one lateral edge of the fabric; and step S2: the movement of the active base is controlled according to the information of the lateral edge of the fabric acquired by the edge detection and tracking device to realize the following movement of the plurality of fabric information acquisition devices to the fabric. The whole-winding mechanism and the fabric information acquisition mechanism of claim 5 are arranged on at least one side of the fabric.

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