KR200290085Y1 - Reflection-type weft sensing device for automatic wept-straightener - Google Patents

Abstract

The present invention relates to a weft sensing device for woodworking straighteners that detects warping of the weft of the fabric just before the dyeing process or the tent process of the woven fabric. In order to enable weft correction irrespective of the present invention, a body having at least one light path formed in a cylindrical shape, a lens mounted at the front entrance of the light path, and a plurality of slits having different inclination angles are provided on the back of the body. A light receiving sensor unit including a film mounted on the substrate and a substrate having a plurality of photosensors mounted on a rear surface thereof; By providing a weft sensing device for woodworking corrector comprising a reflective light source mounted on the body to emit light toward the fabric fabric to reflect the light reflected back to the fabric fabric in the light receiving sensor unit, In the case of weft detection, reliable calibration values can be obtained, and the use of semi-permanent, low power consumption infrared light emitting diodes makes it easy to manage and repair and economical. Not only is it necessary, it also has stability without the risk of deformation or fire of fabrics due to overheating.

Description

Reflective weft detection device for automatic tool corrector {REFLECTION-TYPE WEFT SENSING DEVICE FOR AUTOMATIC WEPT-STRAIGHTENER}

The present invention relates to an automatic woodworking corrector, and more particularly, to a weft sensing device for woodworking corrector for detecting the warp and the warp of the weft of the fabric immediately before the dyeing process or tent process of the woven fabric.

In general, textile fabrics woven with warp yarns and weft yarns will bend or warp in the weft yarns when weaving, and the bending or warp yarns of the weft yarns generated will be dyed or tented. Fabrics cannot be commercialized unless previously calibrated.

Automatic woodworking corrector is a device that automatically corrects the bending or inclination of the weft of the fabric when weaving various textile fabrics before performing the dyeing process or the tent process.

1 is a perspective view showing an example of a wood cutting machine according to the prior art, Figure 2 is a cross-sectional view showing an example of the weft detection device for wood cutting machine according to the prior art, Figure 3 is a weft detection device according to the prior art Is an exploded perspective view showing an example of the light receiving sensor unit constituting the.

As shown in FIGS. 1 and 2, the general woodworking corrector 10 includes a plurality of weft sensing devices including a light source 4 and a light receiving sensor unit 3 mounted opposite to each other, and a sensed signal. And a skew roller (1: skew roller) and a bow roller (2: bowroller) that are driven according to a control signal output from the controller according to the detected signal, and a bow roller (2: bowroller) is used to amplify and convert the signal. . That is, a weft sensing device for sensing the weft of the fabric fabric to be corrected is essentially required, and a plurality of weft sensing devices are mounted on each of the left and right sides based on the center of the woodworking straightener.

In general, the weft detecting device for wood cutting machine according to the prior art, as shown in Figure 2, a light source 4 for emitting a strong straightness, and is emitted from the light source (4) transmitted through the fabric fabric (7) It consists of a light receiving sensor unit 5 for detecting one light. In other words, the light source 4 and the light receiving sensor unit 5 are mounted on the woodworking cutter in a state in which the light source 4 and the light receiving sensor unit 5 are separated on both sides of the fabric to be corrected, and the light emitted from the light source 4 is directly received by the light receiving sensor unit 5. Rather than being transmitted to the fabric fabric (7) can only be transmitted to the light receiving sensor (5).

All of the light emitted from the light source 4 is not transmitted to the light receiving sensor unit 5, but part of the light is reflected or absorbed by the fabric fabric 7, and the remaining light passes through the fabric fabric 7 to receive the light receiving sensor unit. (5) is delivered. When light passes through the fabric fabric 7, the angle of light transmitted varies according to the shape of the weft yarn of the fabric fabric. Thus, light having a specific angle component depends on the shape of the weft yarn. Received from the portion 5 is to detect the bend or inclination of the weft formed on the fabric fabric (7).

The light receiving sensor unit 5 will be described in detail. As shown in FIGS. 2 and 3, the light receiving sensor unit 5 is a light oil tool 20 and a film attached to the back side of the light oil tool 20. (30) and the board | substrate 40 attached continuously to the back surface of this film 30 are included. In more detail, the light tool 20 is formed with a plurality of through holes 22, the lens 21 is mounted on the front side of each through hole 20, respectively. In addition, the film 30 includes a plurality of slits 31 formed at positions corresponding to the number of the through holes 22 and the number of the through holes 22 formed in the light oil tool 20. Here, each of the slits 31 has different inclination angles. The substrate 40 includes a plurality of photosensors 41 mounted at positions corresponding to the positions of the slits 31 formed in the film 30, and the inclination angles of the photosensors 41 also correspond to slits. It has the same inclination angle as the inclination angle of (31).

The weft detecting device according to the prior art as described above is to transmit the light of the light source 4 to the light-receiving sensor unit 5 through the fabric fabric (7), which is defined as a transmissive weft sensing device.

The transmissive weft sensing device is electrically powered according to the degree of inclination and the degree of bending of the weft formed on the fabric fabric in the light receiving sensor unit 5 when the light transmitted from the light source 4 to the fabric fabric 7 is applied. Is converted into a signal. That is, the light passing through the fabric fabric 7 is collected at each lens 21 of the light tool 20, passes through the through-hole 22, and then the amount of light in each slit 31 formed in the film 30 This adjustment is transmitted to the photosensor 41. That is, since each of the slits 31 formed in the film 30 have different inclination angles, the amount of light passing through each of the slits 31 changes according to the bending or inclination of the weft. Each photosensor 41 of the substrate 40 generates a voltage proportional to the amount of light received, which is amplified and converted by a controller (not shown).

By detecting the degree of bending and inclination of the weft in the above manner, in accordance with the detected electrical signal to the control roller and the roller roller (2) by applying a control signal, the weft of the fabric fabric (7) It is a correction.

However, in the conventional weft detecting apparatus according to the prior art as described above, in the case of trying to correct the weft of the thick fabric fabric in the wood straightener, the light emitted from the light source does not penetrate the fabric fabric or pass a very small amount of light. As it was, there was a problem that the exact weft detection is impossible.

In addition, it is difficult to assemble as the light source and the light receiving sensor separated from each other to be mounted separately at a predetermined position of each of the wood braces, but must be mounted at a corresponding position.

In addition, since the light source is a point light source like a light bulb, light emitted from the light source cannot be incident in parallel with the axes of a plurality of lenses having different positions, and thus it is difficult to accurately detect the light bulb, and the inconvenience of having to frequently change the light bulb. Followed, there were many problems with power consumption.

As designed to solve the problems of the prior art as described above,

It is an object of the present invention to provide a reflective weft detecting device for automatic tooling corrector which can detect the weft of a reliable fabric regardless of the thickness of the fabric fabric to be calibrated.

In addition, another object of the present invention is to provide a reflective weft detecting apparatus including a light source that allows light incident on the light receiving sensor unit to be incident in parallel to the axis of the lens, and which has low power consumption and does not require replacement.

1 is a perspective view showing an example of a wood cutting machine according to the prior art,

Figure 2 is a cross-sectional view showing an example of the weft sensing device for woodwork straighteners according to the prior art,

3 is an exploded perspective view showing an example of the light receiving sensor unit constituting the weft detecting apparatus according to the prior art,

4 is a perspective view showing an embodiment according to the present invention,

5 is a cross-sectional view taken along the line A-A of FIG.

6A is an exploded perspective view of FIG. 4;

Figure 6b is an exploded perspective view including a partial cross-sectional enlarged view showing an example of a partial deformation in Figure 4,

7 is a front view of FIG. 4,

8 is a plan view of FIG. 4 showing the weft sensing mechanism;

9 is an exploded perspective view showing another embodiment according to the present invention,

10 is a plan view showing another embodiment according to the present invention.

* Description of the symbols for the main parts of the drawings *

50: body 51, 51 ': light path

53, 53 ': Convex lens 60: Film

61, 61 ': slit 70: substrate

71, 71 ': photo sensor 72: composite sensor substrate

80: reflective fluorescent light source 81, 91: PCB

83, 93: infrared light emitting diodes 85, 95: infrared filter

90: transmission fluorescence source 100: fabric fabric

The present invention for realizing this,

In the weft detecting device for wood straighteners for detecting the weft of the fabric fabric that requires weft correction,

A body having at least one light path formed in a cylindrical shape, a lens mounted at the front inlet of the light path, a plurality of slits having different inclination angles, and a film mounted on the back of the main body, A light receiving sensor unit including a substrate having a plurality of photosensors mounted on a rear surface thereof;

It is mounted on the body provides a weft sensing device for woodworking corrector comprising a reflective light source for emitting light toward the fabric fabric to reflect the reflected back to the fabric fabric in the light receiving sensor unit.

Here, the reflective light source is mounted on the front left and right sides of the body to have a predetermined angle toward the center, respectively, characterized in that the pair is provided so that the light is concentrated on a specific portion of the fabric fabric.

In this case, the reflective light source is characterized in that each of the plate-type light source is formed in the form of a plurality of infrared light emitting diodes integrated on one PCB.

In addition, the reflective light source is characterized in that it comprises an infrared filter for selectively transmitting infrared light.

On the other hand, the present invention is formed in the form of a plate attached to the integrated form of a plurality of infrared light emitting diodes on a single PCB, and further comprising a transmissive light source mounted so as to face the light receiving sensor unit across the fabric fabric. It features.

In addition, the transmission light source is characterized in that it comprises an infrared filter for selectively transmitting infrared light.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

4 is a perspective view illustrating an embodiment according to the present invention, FIG. 5 is a cross-sectional view taken along line AA of FIG. 4, FIG. 6A is an exploded perspective view of FIG. 4, and FIG. 6B is a partially modified example of FIG. 4. An exploded perspective view that includes a partial section enlargement roll. FIG. 7 is a front view of FIG. 4, and FIG. 8 is a plan view of FIG. 4 showing a weft sensing mechanism. And, Figure 9 is an exploded perspective view showing another embodiment according to the present invention, Figure 10 is a plan view showing another embodiment according to the present invention.

As a first preferred embodiment according to the present invention, as shown in Figs. 4 and 5, the convex lens 53 is provided with a light passage 51 penetrating the central portion laterally and at the entrance of the front portion of the light passage 51. ) Is mounted on the body 50, the film 60 mounted on the back of the body 50, the substrate 70 mounted on the back of the film 60 and the front and rear sides of the front and rear portions of the body 50, respectively. It consists of a pair of reflective fluorescent light sources 80, 80 'mounted to have a certain angle toward the center of the (50).

As shown in FIG. 6A, the film 60 includes a plurality of slits 61 having different inclination angles, and the plurality of slits 61 are located at the rear side exit of the light path 51. The film 60 is integrated in the center of the film 60.

The substrate 70 is mounted on the rear surface of the film 60 and has a plurality of photosensors 71 as shown in FIG. 6A. Here, the plurality of photosensors 71 are provided in the same number as the plurality of slits 61 provided in the film 60, and are formed at positions and angles to correspond to each other one-to-one.

On the other hand, the film 60 and the substrate 70, as shown in Figure 6b, may be mounted to the body 50 in the form of a single integrated sensor substrate 72. That is, the composite sensor substrate 72 includes a film 60 having an aluminum film having a plurality of slits 61 on a substrate 70 having the same number of photosensors 71 as the slits 61. The film 60 and the substrate 70 are provided in an integrated form by soldering in a state where the photosensors 71 and the slits 61 correspond to each other (bonded in the photosensor fabrication process). When the composite sensor substrate 72 is mounted on the body 50 separately from the film 60 and the substrate 70, the composite sensor substrate 72 has trouble to accurately match the positions of the slit 61 and the photosensor 71. Make it less possible.

As shown in FIG. 7, the reflective fluorescence sources 80 and 80 ′ are integrally mounted to the left and right sides of the body 50, and emit light forward toward the fabric fabric 100. Here, the reflective light sources 80 and 80 'are each formed in a plate shape in which a plurality of infrared light emitting diodes 83 are integrated into one rectangular PCB 81, and as shown in FIG. 50 is mounted to the left and right sides of the front portion to have a predetermined angle toward the center, so that infrared rays are provided in pairs so as to focus on a specific portion of the fabric fabric 100, that is, directly in front of the lens 53. In front of each of the reflective light sources 80 and 80 'formed in a plate shape, an infrared filter 85 for selectively transmitting only infrared light is mounted, thus excluding visible light from the infrared light emitting diodes 83. Only infrared light is transmitted.

The weft detection device according to the present invention of such a configuration, when mounted on the automatic tooling corrector, the lens (2f) that is twice the focal length f of the lens 53 provided from the fabric fabric 100 to be detected ( 53) is mounted to position.

In addition, the width and the installation angle of each of the reflective light source (80, 80 ') is determined according to the distance between the lens 53 and the fabric fabric 100, the infrared rays emitted from both sides overlap on the fabric fabric 100 And installed at an angle to concentrate.

Meanwhile, the length of the body 50 is also determined by the focal length f of the lens 53, that is, the length of the light path 51 formed in the body 50 is mounted on the lens 53. It is formed to be 2f, which is twice the focal length f, so that the film 60 is located at a distance 2f from the lens 53.

Hereinafter, the weft sensing mechanism of the weft sensing device according to the present invention, which is mounted as described above, will be described.

When power is applied, infrared rays emitted from two reflective light sources 80 and 80 'positioned at the left and right sides of the body 50 are concentrated and overlapped with the fabric fabric 100 positioned at a distance 2f in front of the lens 53. According to the shape of the weft, the infrared rays reflected from the fabric fabric 100 having the angular component of a specific angle range is incident on the lens 53, the infrared rays passing through the lens 53 is a 2f distance behind the lens 53 Located at, that is, the front of the film 60 mounted on the back of the body 50 is formed in the reverse phase of 1: 1 magnification.

The infrared rays reaching the film 60 have a specific range of angular components according to the inclination and the bending of the weft of the fabric fabric 100, and the plurality of slits 61 provided in the film 60 are different from each other. Since the inclination angle is provided, the amount of infrared rays transmitted through each slit is different. In other words, infrared rays are intensively transmitted through one slit having a specific angle or two or more slits having similar inclination angles adjacent thereto, and each photo sensor provided on the substrate 70 positioned on the back of the film 60. 71 generates an electrical signal having a different size depending on the amount of infrared light incident through each slit 61.

Ultimately, the electrical signal generated according to the amount of light detected by the photosensor 71 is transmitted to a control unit (not shown), and after performing the calculation process in this control unit, the skew roller and the bow roller equipped in the automatic tooling corrector. By outputting a command signal to control the weft of the fabric fabric. That is, by recognizing the angle of the photosensor that generates a large electrical signal as the angle of the weft to output a command signal for controlling the drive of the skew roller and the bow roller.

As a second embodiment according to the present invention, as shown in Figure 9, the body 50, the film 60, the substrate 70 and the left and right of the body 50, as shown in the first embodiment And a pair of reflective fluorescence sources 80 and 80 '.

Here, the pair of reflective fluorescent light sources 80 and 80 'which emit light are provided in the same configuration as the first embodiment and mounted on the body 50 in the same manner.

However, the body 50 has a plurality of light paths 51 'penetrating laterally, and convex lenses 53' are mounted at the front entrances of the respective light paths 51 '.

In addition, the film 60 mounted on the rear surface of the body 50 is provided with a plurality of slits 61 'having different inclination angles, respectively, and are not integrated in the center portion, but are formed in the body 50 at the time of mounting. At the rear side exit of the light path 51 ', one or two subunits are integrated and arranged so that the slits are located.

Similarly, the substrate 70 mounted on the back side of the film has the same number of photosensors 71 'as the number of slits 61' formed on the film 60, and is also in a one-to-one correspondence position. And at an angle.

9, a total of 13 light paths 51 'are formed in the body 50, and the film 60 and the substrate 70 are arranged to correspond to the positions of the light paths 51', respectively. The weft sensing device according to the second embodiment of the present invention having a total of 13 slits 61 'and a photosensor 71' is shown.

As a third embodiment according to the present invention, as shown in Figure 10, in addition to the configuration of the first embodiment or the second embodiment, the lens 53 of the body 50 with the fabric fabric 100 in between And a transmissive fluorescence source 90 which emits light toward 53 ').

The transmissive fluorescence source 90 is formed in a plate shape in which a plurality of infrared light emitting diodes 93 are attached to one PCB 91 in a form similar to the reflective fluorescence sources 80 and 80 ′ as described above. And an infrared filter (95) mounted on the emitting side to selectively transmit infrared rays, and the automatic tooling corrector to face the light receiving sensor unit on which the lenses (53, 53 ') are mounted with the fabric fabric (100) interposed therebetween. Is installed on.

As the weft sensing device according to the present invention has a reflective light source, it is possible to obtain a reliable result even when weft sensing of a thick fabric fabric, and frequent replacement is required and a high power consumption incandescent lamp or halogen lamp It is possible to use semi-permanently and use infrared light emitting diode with low voltage (24 VDC) and low power consumption, and it is easy to manage and repair and economical. There is no need for stability and there is no risk of deformation of fabric or fire due to overheating.

In addition, when further provided with a transmissive fluorescence source, it can be selectively used according to characteristics such as the thickness of the fabric fabric to be detected has the effect of enabling a more effective weft detection.

In addition, since both the reflection type light source and the transmission type light source are provided in a plate shape, the linearity of the infrared light incident on the lens is improved, thereby enabling more accurate weft detection.

Although the present invention has been illustrated and described in connection with specific embodiments, it is understood that various changes, modifications, and changes can be made without departing from the spirit and scope of the invention as indicated by the appended utility model claims. Anyone with ordinary knowledge in Easily will know.

Claims (7)

In the weft detecting device for wood straighteners for detecting the weft of the fabric fabric that requires weft correction, A body having at least one light path formed in a cylindrical shape, a lens mounted at the front inlet of the light path, a plurality of slits having different inclination angles, and a film mounted on the back of the main body, A light receiving sensor unit including a substrate having a plurality of photosensors mounted on a rear surface thereof; And a reflective light source mounted on the body to emit light toward the fabric fabric so that the light reflected from the fabric fabric is detected by the light receiving sensor unit. The method of claim 1, The reflective light source is mounted on the front left and right sides of the body so as to have a predetermined angle toward the center, respectively, a pair of reflective weft detection for automatic tool corrector, characterized in that provided in a pair so that the light is concentrated on a specific portion of the fabric fabric. Device. The method according to claim 1 or 2, The reflective light source is a reflective weft sensing device for automatic tool corrector, characterized in that each of the plate-type light source is formed in the form of a plurality of infrared light emitting diodes integrated on one PCB. The method of claim 3, wherein The reflective light source is a reflective weft detection device for automatic tool corrector, characterized in that it comprises an infrared filter for selectively transmitting infrared light. The method according to claim 1 or 4, A reflective weft detecting device for an automatic tooling corrector further comprising a transmissive light source mounted to face the light receiving sensor unit with a fabric fabric interposed therebetween. The method of claim 5, The transmissive light source is a reflective weft sensing device for automatic tool corrector, characterized in that formed in the form of a plate attached to a plurality of infrared light emitting diodes integrated on one PCB. The method of claim 6, The transmissive light source is a reflective weft detection device for automatic tool corrector, characterized in that it comprises an infrared filter for selectively transmitting infrared light.