CN107764208B - Hair product sagging tester - Google Patents
Hair product sagging tester Download PDFInfo
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- CN107764208B CN107764208B CN201711157820.1A CN201711157820A CN107764208B CN 107764208 B CN107764208 B CN 107764208B CN 201711157820 A CN201711157820 A CN 201711157820A CN 107764208 B CN107764208 B CN 107764208B
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- hair bundle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
The invention discloses a sagging tester for hair products, which comprises: the device comprises a shell, a light source unit, a rotating mechanism with a forward and backward rotation function, a control processing unit, a display unit, a hair bundle holder for holding a hair bundle to be tested, a light path adjusting unit and at least two light-sensitive sensors, wherein the rotating mechanism is arranged in the shell, and a rotating output shaft of the rotating mechanism vertically and downwards butts against the hair bundle holder; the light source unit and the light path adjusting unit are respectively arranged at corresponding positions in the shell, so that two mutually perpendicular transverse light beams and longitudinal light beams are formed on the same horizontal plane after the light beams emitted by the light source unit are irradiated on the light path adjusting unit, and the photosensitive sensors are respectively arranged in paths where the transverse light beams and the longitudinal light beams pass; the control processing unit receives the light sensing signals output by the light sensing sensors, processes the light sensing signals and outputs the processed light sensing signals to the display unit. The beneficial effects of the invention are as follows: the method has the advantages of good reliability and high precision, and can rapidly measure the sagging of batch sample hair products.
Description
Technical Field
The invention relates to the technical field of hair product testing equipment, in particular to a hair product sagging tester.
Background
The hairpiece product is made of human hair, animal hair or chemical fiber, and is mainly used for hairstyle decoration, hairdressing and teaching, supplementing physiological defects such as lack of hair, hair loss and the like, and meeting the requirements of special industries. The annual average growth rate of the hair product industry is kept above 18% in the last five years, and the global market scale of the hair product industry is expected to keep a relatively rapid growth rate in the next few years, and the domestic hair product industry scale can enter a high-speed expansion period along with the increase of market demands.
The hair products have various varieties, and the color, the hand feeling, the elasticity, the sagging degree and the flexibility of different hair products are different. The sagging and the flexibility reflect the different materials of the hair products and determine the quality, the price, the appearance, the using effect and the like.
However, at present, no objective detecting instrument and equipment for detecting the sagging of the hair products are available at home and abroad, and inconvenience is brought to research and development design, production processing, trade sales, academic communication and talent culture of the hair products. For example, manufacturers do not have means and tools for quality assessment, consumers do not have complaint bases, regulatory authorities cannot perform law enforcement regulations, and such disputes cannot be resolved. In the last few years, the quality of export products is inconsistent with the sensory evaluation requirements of customers, so that the condition of concentrated goods return occurs, and the healthy development of the whole hair product industry, even the hair care industry, is seriously affected. The detection equipment for the sagging degree of the hair products can lay a good foundation for standardizing the hair product industry in China, promote the quick and healthy development of the hair product industry, improve the product quality, help to improve the credibility of the hair products in China, enlarge export, increase export foreign exchange creation capability and further stabilize the status of the first export country of the hair products in China.
Disclosure of Invention
The invention aims to provide a sagging tester for a hair product, which is used for evaluating sagging of the hair product by a projection method.
In order to solve the technical problems, the invention adopts the following technical scheme:
designing a hair product sagging tester, comprising: the device comprises a shell, a light source unit, a rotating mechanism with a forward and reverse rotation function, a control processing unit, a display unit, a hair bundle holder for holding a hair bundle to be tested, a light path adjusting unit and at least two light sensing sensors, wherein the rotating mechanism is arranged in the shell, and a rotating output shaft of the rotating mechanism vertically and downwards butts against the hair bundle holder to drive the hair bundle holder to rotate forward and reverse; the light source unit and the light path adjusting unit are respectively arranged at corresponding positions in the shell, so that after the light beam emitted by the light source unit irradiates the light path adjusting unit, two mutually perpendicular transverse light beams and longitudinal light beams are formed on the same horizontal plane, and the photosensitive sensor is respectively arranged in the paths of the transverse light beams and the longitudinal light beams and used for sensing the width and/or the length of the vertical projection shielded by the hair beam to be detected; the control processing unit receives the light signals collected by the light sensing sensors, processes the light signals and outputs the processed light signals to the display unit.
Preferably, the hair product sagging instrument further comprises: the lifting mechanism is arranged on the rotating mechanism, so that the lifting mechanism can drive the hair bundle clamp holder to lift, and the starting end and the tail end of the hair bundle to be tested sequentially pass through the same photosensitive sensor.
Further, the lifting mechanism comprises a lifting table, the rotating mechanism is arranged on the lifting table, scales or graduated scales are arranged in the shell along the vertical line direction, and a viewing slit for observing the scales or graduated scales is arranged on the surface of the shell; or a viewing slot for observing the position of the lifting table is formed in the surface of the shell, and scales or graduated scales along the vertical line direction are arranged beside the viewing slot and on the surface of the shell.
Further, an upper limit switch used for limiting the upper limit position of the lifting table and a lower limit switch used for limiting the lower limit position of the lifting table are arranged in the shell; and a proximity switch used for calibrating an initial position is further arranged between the upper limit switch and the lower limit switch, a detection position matched with the proximity switch is arranged on the lower surface of the lifting platform, and the upper limit switch, the lower limit switch and the proximity switch are sequentially and respectively electrically connected with the I/O interface of the control processing unit.
Further, a load cell is provided at a position corresponding to the position between the rotary output shaft and the hair bundle holder.
Preferably, the light source unit includes: a convex lens and a point light source disposed at a focal point of the convex lens.
Preferably, the light path adjusting unit includes a first mirror, and the light emitted from the light source unit is parallel to the horizontal plane, wherein a part of the light beam irradiates the first mirror at an incident angle of 45 ° and is emitted in a direction perpendicular to the other part of the light beam.
Preferably, the light path adjusting unit includes a first reflector and a second reflector, which are disposed perpendicular to each other, and the light emitted by the light source unit irradiates the first reflector and the second reflector at an incident angle of 45 ° and forms two perpendicular transverse light beams and two perpendicular longitudinal light beams on the same horizontal plane.
Preferably, the light sensing sensor is a linear array type CCD sensor, and the linear array type CCD sensor is disposed on the same plane.
Preferably, the display unit is a touch screen display.
Compared with the prior art, the invention has the beneficial technical effects that: the sagging tester for the hair products has the characteristics of good reliability and high precision, and can rapidly measure sagging of the hair products in batches.
Drawings
FIG. 1 is a schematic view of a hair product sagging tester.
Fig. 2 is an internal structural view of a sagging tester for hair products.
Fig. 3 is a perspective view of example 1 of an optical path adjusting device of a hair product sagging tester.
Fig. 4 is a perspective view of example 2 of the optical path adjusting device of the sagging tester for hair products.
In the figure, 11 is a housing, 111 is a door, 1111 is a scale, 12 is a rotating mechanism, 14 is a display unit, 15 is a hair bundle holder, 16 is a light source unit, 161 is a point light source, 162 is a convex lens, 17 is a light path adjusting unit, 171 is a reflector three, 172 is a reflector four, 173 is a reflector one, 174 is a reflector two, 18 is a light sensing sensor, 19 is a lifting mechanism, 20 is a lifting table, 211 is an upper limit switch, 212 is a lower limit switch, 213 is a proximity switch, and 22 is a load cell.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way.
Sag, drapability: the hair products of known length and mass are used for reflecting the difference of the hair quality under the specified condition, and refer to the degree that one end of a hand-held spring stands under a gravity field along the length direction, even if the hand-held spring is disturbed, the degree of sinking sense is strong or weak (generally expressed by a sag index) which is expressed by the difference of mass inertia distance (abbreviated as inertia distance), and the degree of the difference of fluffy and floating appearance is generated by the difference of static electricity and air buoyancy (generally expressed by a sag coefficient).
Sag index, drapability index: the index used to represent the sag of the hair strand inertia is the product of the hair line density and the square of the winding ratio of the length cube of the spring body. The sag index is large, and the sag of the spring is good.
Overhang coefficient, pendency coefficient: an index for indicating the sagging of the appearance of the hair bundle is a ratio of the shading amount of the hair bundle in the initial state and the shading amount of the hair bundle after rotating for a prescribed number of rotations when the sample naturally sags.
Example 1: a hair product sagging tester, see fig. 1-3, comprising: the hair bundle detector comprises a shell 11, a rotating mechanism 12 with a forward and backward rotation function, a control processing unit, a display unit 14, a hair bundle holder 15 for holding a hair bundle to be detected, a light source unit 16, a light path adjusting unit 17 and two light-sensitive sensors 18, wherein the rotating mechanism 12 is arranged in the shell 11 in an inverted manner, and the hair bundle holder 15 is arranged on an output shaft of the rotating mechanism 12; the light source unit 16 is arranged on the right side of the shell 11, the light path adjusting unit 17 is arranged at a corresponding position in the shell 11, a partition plate is arranged between the light source unit 16 and the light sensor 18 to be sensed, after the light beam emitted from the light source unit 16 irradiates the light path adjusting unit 17, two mutually perpendicular transverse light beams and longitudinal light beams are formed on the same horizontal plane, the light sensor 18 is respectively arranged in a path of the transverse light beams and the longitudinal light beams, and the horizontal plane is marked as F horizontal plane for sensing the width of the vertical projection shielded by the light beam to be sensed; the light sensing signals collected by the two light sensing sensors 18 are processed by the control processing unit and then output to the display unit 14. In other embodiments, the number of the light-sensing sensors 18 may be more than two, respectively arranged at different heights or in different circumferential directions, or vertically arranged to measure the length of the hair bundle to be measured.
In the embodiment, the control processing unit comprises a singlechip, and the model of the singlechip is STM32F103V; the display unit 14 is a 7-inch display with a four-wire resistance touch screen attached to the screen, the display model is AT070TN92, the display driver model is SSD1963, the display touch screen controller is ADS7843, the FSMC pin of the singlechip is connected with the control pin of the display driver, the output pin of the display driver is electrically connected with the display screen, and the display touch screen controller is electrically connected with the I/O port of the singlechip; the hair bundle clamp holder 15 is a vertical rod, one end of the vertical rod is provided with a clamp, and a binding rope can be selected; the light source unit 16 includes: the convex lens 162 and the point light source 161 disposed at the focal point of the convex lens 162, the light sensor 18 is a linear array type CCD sensor, and when the linear array type CCD sensor is mounted, the two linear array type CCD sensors should be mounted on the F-level.
Referring to fig. 2, in this embodiment, the hair product sagging apparatus further includes: the lifting mechanism 19 and the stepping motor for driving the lifting mechanism, the rotating mechanism 12 is arranged on the lifting mechanism 19, so that the lifting mechanism 19 can drive the hair bundle clamp holder 15 to lift, and the starting end and the tail end of the hair bundle to be tested sequentially pass through the same photosensitive sensor.
In this embodiment, the lifting mechanism 19 is a belt lifting mechanism, including: the device comprises four gears fixed in a shell, an internal tooth belt arranged on the gears and a lifting table 20 fixedly connected with the internal tooth belt, wherein one gear is arranged on an output shaft of a stepping motor, the stepping motor is provided with a stepping motor driver, an I/O interface of a singlechip is sequentially and respectively electrically connected with a control port of the stepping motor driver, an output port of the stepping motor driver is correspondingly and electrically connected with a power port of the stepping motor, a rotating mechanism 12 is arranged on the lifting table 20, a door 111 is arranged on the surface of the shell 11, a transparent viewing slit 1111 for observing the position of the lifting table 20 is arranged on the door 111, a scale 1112 along the vertical line direction is arranged on the transparent viewing slit 1112, and in other embodiments, a scale is arranged beside the viewing slit 1111 and on the surface of the shell 11, or a scale or the scale is arranged along the vertical line direction in the shell 11, and a viewing slit for observing the scale or the scale is arranged on the surface of the shell 11.
In this embodiment, the rotation mechanism 12 is a stepper motor, and in other embodiments, a cam mechanism may be used to effect oscillation of the hair strand holder.
Referring to fig. 2, in the present embodiment, an upper limit switch 211 for limiting an uplink limit position of the lifting platform 20 and a lower limit switch 212 for limiting a downlink limit position of the lifting platform 20 are disposed in the housing 11, a proximity switch 213 for calibrating an initial position is further disposed between the upper limit switch 211 and the lower limit switch 212, a detection position matched with the proximity switch 213 is disposed on a lower surface of the lifting platform 20, and the upper limit switch 211, the lower limit switch 212, and the proximity switch 213 are sequentially and electrically connected with an I/O interface of the control processing unit.
Referring to fig. 2-3, in the present embodiment, the point light source 161 is disposed above the convex lens 162, so that the third and fourth mirrors are required to adjust the downward parallel light beams into upward parallel light beams, the third mirror forms an angle of 45 ° with the horizontal plane so that the incident angle is 45 °, the fourth mirror is perpendicular to the third mirror, and in detail, when the upward parallel light beams irradiate the first and second mirrors at an incident angle of 45 ° in fig. 3, two perpendicular transverse and longitudinal light beams are formed at the F-level.
Referring to fig. 2, in this embodiment, a load cell 22 is fixedly connected between the rotation output shaft of the rotation mechanism 12 and the hair bundle holder 15, the load cell 22 is a tension sensor, the model is LRS-250g, and the signal output end of the load cell 22 is connected to the differential signal amplifying circuit and then connected to the ADC port of the control processing unit.
The working process of the hair product sagging tester of the embodiment is as follows: after the sagging tester of the hair product is powered on, the singlechip resets, and the stepping motor is controlled to drive the lifting table 20 to restore to the initial position 212, when the lower proximity switch detects the detection position, a switch signal is sent out, the resetting is completed, and the value of the tension sensor is corrected to be 0. After the point light source 161 is lightened, light emitted by the point light source 1611 forms parallel light beams through the convex lens 162, the parallel light beams are reflected by the light path adjusting unit 17, two mutually perpendicular transverse light belts and longitudinal light belts are formed on the F surface, the transverse light belts and the longitudinal light belts are intersected at the position of the light beam to be tested and vertically irradiate on the corresponding light sensor 18, the light beam to be tested forms a shielding with the length of S1 on one light sensor, and the shielding with the length of S2 is formed on the other light sensor; since the two light-sensing sensors are perpendicular to each other, s1×s2 can be calculated as a rectangular area. Since one of the light sensing sensors 18 is installed at the rear of the door, the transparent viewing slit 1111 does not affect the light sensing sensor 18. Meanwhile, the tension sensor outputs a tension value signal, and after being processed by the control processor, the tension value G is output to the touch screen, and the mass of the hair bundle to be detected is G/G.
The rotating command of the rotating mechanism is input through the touch screen, the clockwise rotating command or the repeated forward and reverse rotating command is selected to form a swinging effect, after a certain time, the shielding shadow length S1 'and the shielding shadow length S2' at the two light sensing sensors are measured again, and the second rectangular area can be calculated by the S1 'multiplied by S2'. The lifting command of the lifting platform is input through the touch screen, the singlechip controls the output shaft of the stepping motor to rotate after receiving the command, the gear arranged on the output shaft of the stepping motor drives the internal tooth belt to rotate so as to drive the lifting platform to descend, when the lifting platform collides with the lower limit switch, the lower limit switch acts and outputs a switch signal, the control processing unit controls the stepping motor to stop rotating after receiving the switch signal, at the moment, the third intersection measures the shading length S1 'and the shading length S2' at the two light sensing sensors, S1 'x S2' can calculate to obtain a third rectangular area, the sagging coefficient of the hair product = (s1×s2-s1 "×s2")/(s1 '×s2' -s1 "×s2"), the scale at the position of the lifting table is S3, after 5S, the control processing unit controls the output shaft of the stepping motor to rotate reversely, the lifting table is driven to ascend by the gear and the internal tooth belt, the control processor compares the electric signal of the photosensitive sensor with the limit electric signal when the photosensitive sensor is not shielded, when the two values are equal, the stepping motor is controlled to stop rotating, the scale at the position of the lifting table is S4, and the hair length is S4-S3.
Example 2: the sagging tester for hair products is the same as that of embodiment 1 except that, referring to fig. 4, the light path adjusting unit 17 is a mirror, the mirror is perpendicular to the horizontal plane, and when the horizontal light beam irradiates the light path adjusting unit 17 at an incident angle of 45 °, a part of the light beam is located outside the light path adjusting unit, and another part of the light beam is reflected by the light path adjusting unit 17 to form a longitudinal light beam band perpendicular to the light beam.
The working procedure of the hair product sagging tester of this embodiment is the same as that of embodiment 1.
It should be understood that the lifting mechanism in embodiment 1 may also be provided as a mechanism having a lifting function such as a screw lifting mechanism.
While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments may be changed without departing from the spirit of the invention, and a plurality of specific embodiments are common variation ranges of the present invention, and will not be described in detail herein.
Claims (8)
1. The hair product sagging tester comprises a shell, a light source unit, and is characterized by further comprising a rotating mechanism with a forward and reverse rotation function, a control processing unit, a display unit, a hair bundle holder for holding a hair bundle to be tested, a light path adjusting unit and at least two light-sensitive sensors, wherein the rotating mechanism is arranged in the shell, and a rotating output shaft of the rotating mechanism vertically and downwards butts against the hair bundle holder so as to drive the hair bundle holder to rotate forward and reverse; the light source unit and the light path adjusting unit are respectively arranged at corresponding positions in the shell, so that after the light beam emitted by the light source unit irradiates the light path adjusting unit, two mutually perpendicular transverse light beams and longitudinal light beams are formed on the same horizontal plane, and the photosensitive sensor is respectively arranged in the paths of the transverse light beams and the longitudinal light beams and used for sensing the width and/or the length of the vertical projection shielded by the hair beam to be detected; the control processing unit receives the light signals collected by the light sensing sensors, processes the light signals and outputs the processed light signals to the display unit;
the lifting mechanism is arranged on the rotating mechanism, so that the lifting mechanism can drive the hair bundle clamp holder to lift, and the starting end and the tail end of the hair bundle to be tested sequentially pass through the same photosensitive sensor;
the lifting mechanism comprises a lifting table, and the rotating mechanism is arranged on the lifting table; an upper limit switch used for limiting the upper limit position of the lifting table and a lower limit switch used for limiting the lower limit position of the lifting table are arranged in the shell; a proximity switch used for calibrating an initial position is further arranged between the upper limit switch and the lower limit switch, a detection position matched with the proximity switch is arranged on the lower surface of the lifting platform, and the upper limit switch, the lower limit switch and the proximity switch are sequentially and respectively electrically connected with an I/O interface of the control processing unit;
when the lifting platform is positioned at the position of the proximity switch, the hair bundle to be tested forms a shade with the length of S1 on one of the photosensitive sensors, forms a shade with the length of S2 on the other photosensitive sensor, and measures the shade length S1 'and the shade length S2' at the two photosensitive sensors again after the rotating mechanism on the lifting platform rotates for a certain time, when the elevating table is lowered to the lower limit switch position, the shade length S1 "and shade length S2" at the two photosensitive sensors are measured for the third time, and the sagging coefficient of the hair product= (s1×s2-s1 "×s2") = (s1 '×s2' -s1 "×s2").
2. The hair product sagging tester according to claim 1, wherein a scale or a graduated scale is provided in the housing in a vertical direction, and a viewing slit for observing the scale or the graduated scale is provided on a surface of the housing; or a viewing slot for observing the position of the lifting table is formed in the surface of the shell, and scales or graduated scales along the vertical line direction are arranged beside the viewing slot and on the surface of the shell.
3. The hair product sagging tester according to claim 2, wherein a load cell is provided at a corresponding position between the rotating output shaft and the hair bundle holder.
4. The hair product sagging tester of claim 1, wherein the light source unit includes: a convex lens and a point light source disposed at a focal point of the convex lens.
5. The hair sagging tester of claim 1, wherein the light path adjusting unit includes a mirror one, and the light emitted from the light source unit is parallel to the horizontal plane, wherein a part of the light beam irradiates the mirror one at an incident angle of 45 ° and is emitted in a direction perpendicular to the other part of the light beam.
6. The hair sagging tester of claim 1, wherein the light path adjusting unit comprises a first mirror and a second mirror which are vertically arranged, and the light emitted from the light source unit irradiates the first mirror and the second mirror at an incident angle of 45 degrees, and then forms two vertical transverse light beams and vertical light beams on the same horizontal plane.
7. The hair product sagging tester according to claim 1, wherein the light sensing sensor is a linear array type CCD sensor, which are provided on the same plane.
8. The hair product sagging tester of claim 1, wherein the display unit is a touch screen display.
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| CN201711157820.1A CN107764208B (en) | 2017-11-20 | 2017-11-20 | Hair product sagging tester |
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| CN201711157820.1A CN107764208B (en) | 2017-11-20 | 2017-11-20 | Hair product sagging tester |
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| CN108308829A (en) * | 2018-04-08 | 2018-07-24 | 新乡市高新区居艺烫发产品技术研发有限公司 | Intelligent method for permanent waving hair, device and intelligent heated hair-waving appliance |
| CN110849241B (en) * | 2019-10-23 | 2021-03-16 | 河南工程学院 | Method and device for measuring amplitude of spiral power spring |
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