CN102359952B - Contact photoelectric sensor for identifying front and back of bamboo filament - Google Patents

Contact photoelectric sensor for identifying front and back of bamboo filament Download PDF

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Publication number
CN102359952B
CN102359952B CN 201110156062 CN201110156062A CN102359952B CN 102359952 B CN102359952 B CN 102359952B CN 201110156062 CN201110156062 CN 201110156062 CN 201110156062 A CN201110156062 A CN 201110156062A CN 102359952 B CN102359952 B CN 102359952B
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sensor
matrix
identification
mounting hole
receiving device
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CN102359952A (en
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赖众程
张国宏
王士杰
刘妹琴
翁勤
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The invention discloses a contact photoelectric sensor for identifying the front and back of a bamboo filament. The contact photoelectric sensor comprises a left sensor and a right sensor, and the left or right sensor includes a substrate, several groups of identification units and a circuit board. The substrate is prepared by a lightproof material, and each group of identification unit consists of a pair of photoemissive device and photoelectric receiving device that are respectively in electric connection with the circuit board. The bamboo filament is clamped between the left sensor and the right sensor. By symmetrically installing sensors on the front and back of the bamboo filament, the contact photoelectric sensor of the invention can detect and compare the front and back surfaces of the bamboo filament simultaneously. And multiple photoelectric identification units can enlarge the detection scope and satisfy the detection requirements of bamboo filaments of different width. Arrangement of a light passing groove and a light barrier between a photoemissive device and a photoelectric receiving device can improve the sensitivity and accuracy of photoelectric receiving, and prevent interference of other external light sources on receiving devices.

Description

A kind of identification bamboo silk pros and cons contact photoelectric sensor
Technical field
The present invention relates to sensory field, refer more particularly to and a kind ofly can accurately identify bamboo silk pros and cons contact photoelectric sensor.
Background technology
Bamboo plaited article is as Green Product, obtained using widely, bamboo silk as the bamboo plaited article raw material, when dropping into the machinery braiding, judge fast that correctly then there is certain degree of difficulty in bamboo silk pros and cons, the front of general bamboo silk is smooth plane, the rectangular shape in two edges, and the two edges of bamboo silk reverse side are generally curved, some bamboo silk reverse side also has groove, and different bamboo silk width differs, and gives to detect also to bring some inconvenience, generally all adopt manual work now, by staff connecing of bamboo silk surface touched, judge the pros and cons of bamboo silk, labour intensity is big, accuracy is low, and the easy production sense of fatigue of workman, reduce product quality and output; Photoelectric sensor is as an important detection part in the modern industry electromechanical integration equipment, be widely used in the location, position, color recognition and material analysis field, by reception and the analysis of photoelectric device to the body surface reflection ray, can position object, identification and analysis, be CN03148993.1 as China Patent No., name is called reflection sensor, the patent of invention of filter and detected material detection method, this reflection sensor, for detection of having or not detected material in the detection position, have detecting means and filter, detecting means has to the light-emitting component of detection position irradiates light and accepts from the reflected light that is reflected by detected material and the photo detector that produces the electric signal of corresponding light income, filter is configured between this detecting means and detection position, by can and making to the catoptrical light transmissive material of the reflection of photo detector from the detected material that is in the detection position through the light that shines to above-mentioned detection position from light-emitting component, can prevent that dust from entering detecting means, the surface of the detecting means side of this filter, be formed have relative with light-emitting component to the 1st dip plane, relative with photo detector to the 2nd dip plane, with be formed on the taper of the crest line portion of intersection mutually of the 1st and the 2nd dip plane, above-mentioned crest line portion extends between light-emitting component and photo detector, in certain occasion, this reflection sensor can detect the characteristic of detected material more exactly; But reflection sensor is to the detection of thin long bamboo filament pros and cons, and then owing to be subjected to the interference of extraneous light bigger, and there is different width in the bamboo silk, makes the accuracy rate of identification low, can not satisfy the requirement that bamboo silk pros and cons detects.
Summary of the invention
The labour intensity that the present invention mainly solves Artificial Cognition bamboo silk pros and cons is big, accuracy is low and output is not high
Technical matters, solve common reflection sensor simultaneously and be subjected to extraneous light to disturb big and can't satisfy different in width bamboo silk and detect the deficiency that requires; Providing a kind of judges bamboo silk pros and cons fast, satisfies the contact photoelectric sensor of the bamboo silk pros and cons identification of mechanization requirements of mass production by many groups photoelectric sensor.
In order to solve the technical matters of above-mentioned existence, the present invention adopts following technical proposals:
A kind of identification bamboo silk pros and cons contact photoelectric sensor of the present invention comprises left sensor and right sensor, described left sensor and right sensor comprise matrix, some groups of identification units and circuit board, described matrix is that light-proof material is made, described every group of identification unit comprises a pair of photoemissive device and photoelectric receiving device, described photoemissive device and photoelectric receiving device are electrically connected with described circuit board respectively, the bamboo silk is located between left sensor and the right sensor, the symmetrically arranged left and right sides of bamboo silk pros and cons sensor, can detect comparison to the positive and negative surface of bamboo silk simultaneously, effectively distinguish the pros and cons of bamboo silk, matrix is the fixed light electrical part easily, and by circuit board photosignal is exported, the matrix that light-proof material is made has reduced the influence of extraneous light, has improved sensitivity and the accuracy rate of photoelectric device.
As preferably, the matrix of described left sensor and left-right symmetric identical with the basal body structure of right sensor can detect the positive and negative surface of bamboo silk of clamping between the sensor of the left and right sides simultaneously.
As preferably, be respectively equipped with some guideposts and pilot hole on the described matrix, described guidepost and pilot hole all are located at the same side of matrix, guidepost and the right sensor corresponding positioning hole of left side sensor match, guidepost and the left sensor corresponding positioning hole of right sensor match, the guidepost of left side sensor is located in the pilot hole of right sensor and can slides along pilot hole, the guidepost of right sensor is located at the pilot hole of left sensor correspondence and can horizontally slips along pilot hole, cooperation by guidepost and pilot hole, it is convenient that left sensor or right sensor are slided, and satisfies the requirement that the bamboo silk clamps and locatees fast.
As preferably, described left sensor is provided with three groups of identification units, also is provided with three groups of identification units on the described right sensor, and described circuit board is located at the back side of corresponding matrix, many group identification units can cover wider identification zone, adapt to the detection requirement of different in width bamboo silk.
As preferably, described matrix is rectangular parallelepiped, matrix is provided with the mounting hole of three groups of identification units, every group of identification unit mounting hole comprises a pair of ballistic device mounting hole and receiving device mounting hole, be provided with photoemissive device in the described ballistic device mounting hole, be provided with photoelectric receiving device in the described receiving device mounting hole, matrix front between ballistic device mounting hole and the receiving device mounting hole is provided with logical light groove, logical light groove is provided with light barrier near an end of receiving device mounting hole, the horizontal center line of described three groups of identification unit mounting holes is parallel and be parallel to the long side of matrix mutually, the distance of the long side of the horizontal center line of described three groups of identification unit mounting holes and matrix one side does not wait, the light of the photoemissive device emission of every group of identification unit, through logical light groove and the reflection on bamboo silk surface and blocking of light barrier, changed the quantities received of photoelectric receiving device, and then the pros and cons of definite bamboo silk, be arrangeding in parallel of many group identification units, enlarged the sensing range of sensor, can detect the marginal surface of wideer bamboo silk simultaneously, adapt to the detection requirement of different in width bamboo silk.
As preferably, described photoemissive device mounting hole is square, and described photoelectric receiving device mounting hole is circular hole, and described logical light groove is rectangle, and mounting hole and photoelectric device match, and makes photoelectric device install more firm and make things convenient for.
As preferably, described guidepost is rectangular parallelepiped, guidepost is perpendicular to the matrix front, the positive inner side edge that intersects of guidepost and matrix all is on the same straight line, and described straight line parallel is in the long limit of matrix, and described pilot hole is rectangular through holes, the guidepost of line spread makes the location of bamboo silk more accurate, and the guidepost of rectangular parallelepiped can be used as the right angle block that the bamboo silk detects, and guarantees the accurate of bamboo silk location, prevents from detecting mistake.
As preferably, be provided with transparent sealing glue between the wall of described ballistic device mounting hole and the photoemissive device, be provided with transparent sealing glue between the wall of described receiving device mounting hole and the photoelectric receiving device, photoelectric device directly is bonded in the corresponding mounting hole, and fixation can prevent the moisture influence again.
As preferably, described circuit board is provided with signal conditioning circuit, signals comparator and sensor interface, described sensor interface is electrically connected with peripheral control unit, signal conditioning circuit comprises at the filtering circuit of the set trimming circuit signal of the inconsistency of components and parts, isolation circuit etc., signals comparator is used for opening of control photoelectric device and judges, and the output of all signals all is connected with controller by sensor interface with power supply.
The invention has the beneficial effects as follows: by symmetrically arranged left and right sides sensor, can detect comparison to the positive and negative surface of bamboo silk simultaneously, many group photo-electric identification units can enlarge sensing range, a plurality of position samplings on bamboo silk width, satisfy the detection requirement of different in width bamboo silk, logical light groove and light barrier are set between photoemissive device and the receiving device, can improve the accuracy rate that photoelectricity receives, prevent that other external light sources are to the interference of receiving device.
Description of drawings
Fig. 1 is sensor profile synoptic diagram of the present invention;
Fig. 2 is the synoptic diagram of sensor of the present invention when separating;
Fig. 3 is a kind of structural representation of left sensor;
Fig. 4 is the positive light path synoptic diagram that detects of bamboo silk of the present invention;
Fig. 5 is the light path synoptic diagram that the bamboo silk of the present invention back side is detected;
Fig. 6 is the another kind of structural representation of left sensor;
1. left sensors among the figure, 2. right sensor, 3. matrix, 4. circuit board, 5. photoemissive device, 6. photoelectric receiving device, 7. ballistic device mounting hole, 8. receiving device mounting hole, 9. logical light groove, 10. light barrier, 11. guidepost, 12. pilot holes, 13. sensor interfaces, 14. bamboo silks.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of identification bamboo silk pros and cons contact photoelectric sensor of present embodiment 1, as depicted in figs. 1 and 2, comprise left sensor and right sensor, left side sensor and right sensor comprise matrix, three groups of identification units and circuit board, as shown in Figure 3, every group of identification unit comprises a pair of photoemissive device and photoelectric receiving device, photoemissive device and photoelectric receiving device are electrically connected with circuit board respectively, sensor and left and right sides mirror identical with right sensor construction in a left side is to symmetry, circuit board is installed in the back side of matrix, identical with substrate shape, sensor interface is installed on the circuit board, signal is handled and control module, sensor interface and externally fed, input/output signal connects; Matrix is rectangular parallelepiped, made by light-proof material, design has the mounting hole of three groups of identification units on the matrix, every group of identification unit mounting hole comprises a pair of ballistic device mounting hole and receiving device mounting hole, in the foursquare ballistic device mounting hole photoemissive device is installed, in the circular receiving device mounting hole photoelectric receiving device is installed, fill transparent sealing glue in the mounting hole, matrix front between ballistic device mounting hole and the receiving device mounting hole has rectangular logical light groove, logical light groove has a light barrier near the end design of receiving device mounting hole, the horizontal center line of three groups of identification unit mounting holes is parallel and be parallel to the long limit of matrix mutually, and the distance on the long limit of the horizontal center line of three groups of identification unit mounting holes and matrix one side does not wait; The matrix outer surface designs guidepost and three rectangular pilot holes of three rectangular parallelepipeds respectively, guidepost and pilot hole are all in the same side of matrix, guidepost is perpendicular to the matrix front, the inner side edge that guidepost and matrix surface intersect is on the same straight line, straight line parallel is in the long limit of matrix, three guideposts, three pilot holes corresponding with right sensor of left side sensor match, three guideposts, three pilot holes corresponding with left sensor of right sensor match, the guidepost of left side sensor can slide along the pilot hole of right sensor correspondence, and the guidepost of right sensor can slide along the pilot hole of left sensor correspondence; During working sensor, earlier the guidepost of left sensor is passed through the pilot hole slip of right sensor, make left and right sides sensor separately, bamboo silk to be detected is sent between the sensor of the left and right sides, one side of bamboo silk is fitted near guidepost and with guidepost, sensor clamping in the left and right sides compresses the bamboo silk then, photoemissive device work and emission in three groups of identification units of on the sensor of the left and right sides each detect light, as shown in Figure 4 and Figure 5, detect light by leading to light groove and bamboo silk surface and entering the receiving device mounting hole through light barrier, photoelectric receiving device receives reflection ray, also handled judgement by the light volume reflection that compares same position on the sensor of the left and right sides, can accurately be detected the pros and cons of bamboo silk.
Embodiment 2: the contact photoelectric sensor of a kind of identification bamboo silk pros and cons of present embodiment 2, comprise left sensor and right sensor, a left side sensor and right sensor comprise matrix, two groups of identification units and circuit board, as shown in Figure 6, every group of identification unit comprises a pair of photoemissive device and photoelectric receiving device, photoemissive device and photoelectric receiving device are electrically connected with circuit board respectively, the other parts of present embodiment all with the appropriate section of embodiment 1 roughly the same, this paper repeats no more.
More than explanation is not that the present invention has been done restriction; the present invention also is not limited only to giving an example of above-mentioned explanation; the variation that those skilled in the art have done in essential scope of the present invention, retrofit, increase or replace, all should be considered as protection scope of the present invention.

Claims (9)

1. identification bamboo silk pros and cons contact photoelectric sensor, it is characterized in that: comprise left sensor (1) and right sensor (2), described left sensor and right sensor comprise matrix (3), some groups of identification units and circuit board (4), described matrix (3) is made for light-proof material, described every group of identification unit comprises a pair of photoemissive device (5) and photoelectric receiving device (6), described photoemissive device and photoelectric receiving device are electrically connected with described circuit board respectively, and bamboo silk (14) is located between left sensor and the right sensor.
2. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 1 is characterized in that: the identical and left-right symmetric of basal body structure of the matrix of described left sensor (1) and right sensor (2).
3. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 1 and 2, it is characterized in that: be respectively equipped with some guideposts (11) and pilot hole (12) on the described matrix (3), described guidepost and pilot hole all are located at the same side of matrix, guidepost and right sensor (2) corresponding positioning hole of left side sensor (1) match, guidepost and the left sensor corresponding positioning hole of right sensor match, the guidepost of left side sensor is located in the pilot hole of right sensor correspondence, and the guidepost of right sensor is located in the pilot hole of left sensor correspondence.
4. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 1, it is characterized in that: described left sensor (1) is provided with three groups of identification units, also be provided with three groups of identification units on the described right sensor (2), described circuit board (4) is located at the back side of corresponding matrix (3).
5. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 4, it is characterized in that: described matrix (3) is rectangular parallelepiped, matrix is provided with the mounting hole of three groups of identification units, every group of identification unit mounting hole comprises a pair of ballistic device mounting hole (7) and receiving device mounting hole (8), be provided with photoemissive device (5) in the described ballistic device mounting hole, be provided with photoelectric receiving device (6) in the described receiving device mounting hole, matrix front between ballistic device mounting hole and the receiving device mounting hole also is provided with logical light groove (9), logical light groove is provided with light barrier (10) near an end of receiving device mounting hole, the horizontal center line of described three groups of identification unit mounting holes is parallel and be parallel to the long side of matrix mutually, and the distance of the horizontal center line of described three groups of identification unit mounting holes and matrix one side long side does not wait.
6. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 5 is characterized in that: described ballistic device mounting hole (7) is square, and described receiving device mounting hole (8) is circular hole, and described logical light groove (9) is rectangle.
7. a kind of identification bamboo silk pros and cons contact photoelectric sensor according to claim 3, it is characterized in that: described guidepost (11) is rectangular parallelepiped, guidepost is perpendicular to the front of matrix (3), the positive inner side edge that intersects of guidepost and matrix all is on the same straight line, described straight line parallel is in the long side of matrix, and described pilot hole (12) is rectangular through holes.
8. according to claim 5 or 6 described a kind of identification bamboo silk pros and cons contact photoelectric sensors, it is characterized in that: be provided with transparent sealing glue between the wall of described ballistic device mounting hole (7) and the photoemissive device (5), be provided with transparent sealing glue between the wall of described receiving device mounting hole (8) and the photoelectric receiving device (6).
9. according to claim 1 or 4 described a kind of identification bamboo silk pros and cons contact photoelectric sensors, it is characterized in that: described circuit board (4) is provided with signal conditioning circuit, signals comparator and sensor interface (13), and described sensor interface is electrically connected with peripheral control unit.
CN 201110156062 2011-06-13 2011-06-13 Contact photoelectric sensor for identifying front and back of bamboo filament Expired - Fee Related CN102359952B (en)

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CN106017346B (en) * 2016-05-23 2018-10-12 浙江大学台州研究院 Based on machine vision metrology ceramics eyeglass is positive and negative and the method for angle
CN106770012A (en) * 2016-12-26 2017-05-31 重庆中烟工业有限责任公司 A kind of cigarette paper positive and negative discrimination method and system
CN106841091A (en) * 2016-12-26 2017-06-13 重庆中烟工业有限责任公司 A kind of cigarette paper positive and negative discrimination method and system
CN106770011A (en) * 2016-12-26 2017-05-31 重庆中烟工业有限责任公司 A kind of cigarette paper positive and negative discrimination method and system
CN108673092A (en) * 2018-07-31 2018-10-19 昆山宇辰光通自动化科技有限公司 Press-loading device on the line of differential gear and bearing
CN112043005A (en) * 2020-07-31 2020-12-08 红云红河烟草(集团)有限责任公司 YJ118 type cigarette machine pipe tobacco metering tank detection device
CN112762966A (en) * 2020-12-11 2021-05-07 湖州师范学院求真学院 Displacement sensor

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