CN111451176A - Detection device for material sorting equipment, material sorting equipment and method - Google Patents
Detection device for material sorting equipment, material sorting equipment and method Download PDFInfo
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- CN111451176A CN111451176A CN201910054644.1A CN201910054644A CN111451176A CN 111451176 A CN111451176 A CN 111451176A CN 201910054644 A CN201910054644 A CN 201910054644A CN 111451176 A CN111451176 A CN 111451176A
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- Prior art keywords
- infrared light
- infrared
- diffuse reflection
- materials
- visible light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/367—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0081—Sorting of food items
Abstract
The invention relates to the technical field of material sorting, and discloses a detection device for material sorting equipment, the material sorting equipment and a method, wherein the detection device comprises: the infrared light source groups are respectively positioned on two sides of the material trough and comprise a plurality of infrared light sources, and each infrared light source in the plurality of infrared light sources comprises a plurality of infrared light emitting lamps; the first signal receiving units are respectively positioned on two sides of the material trough and used for receiving infrared light diffuse reflection signals reflected by the materials. The material sorting device comprises the detection device. The detection device adopts the infrared light source to sort the materials, and enhances the diffuse reflection signal intensity of the materials by reasonably configuring the positions and the number of the external red light sources, thereby improving the sorting effect of the materials with small color difference and dark color.
Description
Technical Field
The invention relates to the technical field of material sorting, in particular to a detection device for material sorting equipment, the material sorting equipment and a method.
Background
With the large application of color sorters in the grain and oil industry, the color sorter industry in China develops more and more mature, the variety specifications are more and more, and different materials have the optimal sorting waveband from the initial visible waveband sorting to the current infrared waveband sorting, then to the X-ray waveband sorting and the ultraviolet waveband sorting.
Conventional sorters generally focus on color sorting the material. If yellow is selected from white rice, the separator can be realized only by arranging a visible light lamp. If white plastics are selected from white rice, the sorting needs to be carried out by detecting the difference of infrared signals of the white plastics through an infrared light source, and if shells are selected from almonds, the colors of kernels and shells are dark, the difference of the colors of the kernels and the shells is small, visible light is difficult to distinguish effectively, and the difference of the characteristics of the kernels and the shells in an infrared light band is large. Therefore, for materials with small color difference and dark color, infrared light is needed to be used for sorting the materials.
Although some existing sorting machines are provided with visible light lamps and infrared main lamps, due to the fact that the number or the installation positions of the visible light lamps and the infrared main lamps are unreasonable, the sorting machines have many defects, for example, in the patent application publication No. CN104368540A, the patent name is 'a near-infrared technology-based dual-wavelength automatic grain sorting machine', the sorting machine uses the near-infrared lamps and the visible light lamps as light sources to sort grains, the near-infrared lamps and the visible light lamps are arranged in a single row, the infrared lamps are single-band L ED lamps, and the sorting effect on darker materials is not ideal.
Disclosure of Invention
The invention aims to provide a detection device for material sorting equipment, the material sorting equipment and a method.
To achieve the above object, in one aspect, the present invention provides a detecting device for a material sorting apparatus, the detecting device comprising: the infrared light source groups are respectively positioned on two sides of the material trough and comprise a plurality of infrared light sources, and each infrared light source in the plurality of infrared light sources comprises a plurality of infrared light emitting lamps; the first signal receiving units are respectively positioned on two sides of the material trough and used for receiving infrared light diffuse reflection signals reflected by the materials.
Preferably, the first signal receiving unit includes an infrared lens module, and the infrared lens module includes: the dichroic mirror is used for receiving the infrared light diffuse reflection signal and dividing the received infrared light diffuse reflection signal into two paths of infrared light diffuse reflection signals; the first infrared lens is used for receiving one path of infrared light diffuse reflection signal in the two paths of infrared light diffuse reflection signals; the second infrared lens is used for receiving the other infrared diffuse reflection signal in the two infrared diffuse reflection signals; the first infrared lens and the second infrared lens are arranged in an orthogonal mode.
Preferably, the infrared lens module further comprises a bracket for mounting the dichroic mirror, the first infrared lens and the second infrared lens, and the bracket is of an integrally formed structure.
Preferably, the wave band range of the infrared light diffuse reflection signal received by the first infrared lens is 1050-1150 nm, and the wave band range of the infrared light diffuse reflection signal received by the second infrared lens is 1250-1350 nm.
Preferably, the first signal receiving unit comprises a fiber optic probe and a spectrometer.
Preferably, the detection device further comprises: the visible light source groups are respectively positioned on two sides of the material trough and comprise at least one visible light source, and each visible light source in the at least one visible light source comprises a plurality of visible light emitting lamps; and the second signal receiving units are respectively positioned at two sides of the material trough and used for receiving visible light diffuse reflection signals reflected by the materials.
Preferably, the second signal receiving unit comprises a visible light lens, or a fiber optic probe and a spectrometer.
Preferably, the wavelength range of the infrared light emitted by the infrared light source group is 900-2500 nm.
In another aspect, the present invention also provides a material sorting apparatus, including: the material trough is used for conveying materials to be sorted; any of the above-described detection devices; the signal conversion unit is used for converting the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals; the processor is used for identifying the materials according to the received electric signals so as to judge whether the materials need to be removed and controlling the removing device at the corresponding position to be started under the condition that the materials need to be removed; and a rejecting device.
In another aspect, the present invention also provides a method for sorting materials by using the above material sorting apparatus, the method comprising: visible light emitted by the visible light source group and infrared light emitted by the infrared light source group irradiate the material; the first signal receiving unit receives the infrared light diffuse reflection signal and sends the infrared light diffuse reflection signal to the signal conversion unit; the second signal receiving unit receives the visible light diffuse reflection signal and sends the visible light diffuse reflection signal to the signal conversion unit; the signal conversion unit converts the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals; the processor identifies the materials according to the received electric signals so as to judge whether the materials need to be removed, and controls the removing device at the corresponding position to start under the condition that the materials need to be removed; the removing device removes the materials.
According to the technical scheme, the detection device screens the materials by adopting the infrared light sources and/or the visible light sources, and the quantity and the positions of the infrared light sources and the visible light sources are reasonably arranged, so that the diffuse reflection signal intensity of the materials to be sorted is enhanced, and the sorting effect of the materials with small color difference and dark color is improved; in addition, the infrared lens module of the detection device comprises two infrared lenses, infrared light with different wave bands can be detected, and the infrared lens module is of an integrated structure and is good in stability.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a detection device for a material sorting apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an infrared lens module according to an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic structural diagram of a detection device for a material sorting apparatus according to an embodiment of the present invention. As shown in fig. 1, in one embodiment of the present invention, there is provided a detecting device for a material sorting apparatus, which may include:
the infrared light source groups are respectively positioned on two sides of the material trough 1 and comprise a plurality of infrared light sources 2, and each infrared light source 2 in the plurality of infrared light sources 2 comprises a plurality of infrared light emitting lamps;
the first signal receiving units 3 are respectively positioned on two sides of the material trough and used for receiving infrared light diffuse reflection signals reflected by the materials.
The materials to be sorted are aligned to the infrared light sources 2, infrared light emitted by the infrared light sources 2 irradiates the materials, and infrared light diffuse reflection signals reflected by the materials are received by the first signal receiving unit 3.
The number of the infrared light sources 2 can be two, for example, and the first signal receiving unit 3 can be arranged between the two infrared light sources 2, for example, the number of infrared light emitting lamps contained in each infrared light source 2 can be determined according to the width of the material bin 1, for example, the infrared light emitting lamps can be L ED lamps or halogen lamps, for example, the wavelength range of infrared light emitted by the infrared light source group can be 900-2500 nm.
Set up infrared light source group and first signal receiving unit respectively in the both sides of material silo 1, can realize surveing the positive and negative of waiting to select separately the material simultaneously, set up the infrared light diffuse reflection signal that a plurality of infrared light sources 2 can strengthen the material reflection with one side of material silo 1.
In an embodiment of the present invention, the first signal receiving unit 3 may include, for example, an infrared lens module. Fig. 2 is a schematic structural diagram of an infrared lens module according to an embodiment of the invention. As shown in fig. 2, the infrared lens module may include:
the dichroic mirror 301 is configured to receive the infrared light diffuse reflection signal and divide the received infrared light diffuse reflection signal into two paths of infrared light diffuse reflection signals;
the first infrared lens 302 is configured to receive one path of infrared diffuse reflection signal in the two paths of infrared diffuse reflection signals;
the second infrared lens 303 is configured to receive another infrared diffuse reflection signal of the two infrared diffuse reflection signals;
the first infrared lens 302 and the second infrared lens 303 are orthogonally arranged.
The infrared lens module comprises two infrared lenses, infrared signals of different wave bands can be detected, and compared with a single infrared lens, the infrared lens module has the advantages that the wave band range of the infrared signals detected by the infrared lens is larger, the identification is more accurate, and the accuracy of material removal can be improved. The wave band range of the infrared light diffuse reflection signal received by the first infrared lens 302 is 1050-1150 nm, and the preferred wavelength is 1100 nm; the waveband range of the infrared light diffuse reflection signal received by the second infrared lens 303 is 1250-1350 nm, and the preferred wavelength is 1300 nm.
In an embodiment of the present invention, the infrared lens module may further include a bracket 304 for mounting the dichroic mirror 301, the first infrared lens 302, and the second infrared lens 303, and the bracket 304 is an integrally molded structure.
The integral structure of the bracket 304 can ensure that the first infrared lens 302 and the second infrared lens 303 are arranged perpendicular to each other. Because the infrared lens module is detachably arranged on the material sorting equipment, the parameters such as the focal length, the aperture and the like of the infrared lens can be well adjusted before the infrared lens module is arranged. After the adjustment of each parameter of the infrared lens is completed, the infrared lens module is integrally assembled on the material sorting equipment, so that the assembling efficiency and the mounting accuracy can be improved, and more importantly, the accuracy of the relative positions of the two infrared lenses can be ensured.
In an alternative embodiment of the invention, the first signal receiving unit 3 may comprise, for example, a fiber optic probe and a spectrometer.
In an embodiment of the present invention, the detecting device may further include:
the visible light source groups are respectively positioned on two sides of the material trough 1 and comprise at least one visible light source 4, and each visible light source 4 in the at least one visible light source 4 comprises a plurality of visible light emitting lamps;
and the second signal receiving units 5 are respectively positioned at two sides of the material trough and are used for receiving visible light diffuse reflection signals reflected by the materials.
The visible light source 4 is additionally arranged in the detection device, so that the brightness of the material to be sorted (an observation area) can be improved, the visible light signal can be detected, the intensity of an infrared light diffuse reflection signal reflected by the material can be enhanced, and the infrared light diffuse reflection signal and the visible light diffuse reflection signal reflected by the material can be clearly detected even for the material with dark color under the combined action of the infrared light source 2 and the visible light source 4.
The group of visible light sources may for example comprise one visible light source 4, and the number of visible light emitting lamps in each visible light source 4 may for example be set according to the width of the material trough 1. The second signal receiving unit 5 may comprise, for example, a visible light lens, or may comprise a fiber optic probe and a spectrometer.
There is also provided in an embodiment of the present invention, an apparatus for material sorting, which may include:
the material trough is used for conveying materials to be sorted;
any of the above-described detection devices;
the signal conversion unit is respectively connected with a first signal receiving unit and a second signal receiving unit in the detection device and is used for converting the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals;
the processor is connected with the signal conversion unit and used for identifying the materials according to the received electric signals so as to judge whether the materials need to be removed and controlling the removal device at the corresponding position to be started under the condition that the materials need to be removed; and
and the rejecting device is connected with the processor.
The material sorting equipment can also comprise a vibrator arranged above the material trough, the material slides into the material trough after being uniformly vibrated by the vibrator, and the material passes through the observation area without overlapping in sequence when sliding in the material trough.
The removing device can comprise a plurality of air blowing devices arranged below the observation area, air blowing valves are arranged on the air blowing devices, under the condition that the processor judges that a certain material to be separated needs to be removed, the air blowing valves at corresponding positions are controlled to be opened, compressed air is sprayed out by the air blowing devices to blow out the material, the removed material is stored in a waste material groove, and the material which does not need to be removed slides to a specified position through the material groove.
In an embodiment of the present invention, there is also provided a method for sorting materials using the material sorting apparatus described above, the method for sorting materials may include:
visible light emitted by the visible light source group and infrared light emitted by the infrared light source group irradiate the material;
the first signal receiving unit receives the infrared light diffuse reflection signal and sends the infrared light diffuse reflection signal to the signal conversion unit;
the second signal receiving unit receives the visible light diffuse reflection signal and sends the visible light diffuse reflection signal to the signal conversion unit;
the signal conversion unit converts the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals;
the processor identifies the materials according to the received electric signals so as to judge whether the materials need to be removed, and controls the removing device at the corresponding position to start under the condition that the materials need to be removed;
the removing device removes the materials.
Through the embodiment, the detection device screens the materials by adopting the infrared light sources and/or the visible light sources, and the quantity and the positions of the infrared light sources and the visible light sources are reasonably arranged, so that the diffuse reflection signal intensity of the materials to be sorted is enhanced, and the sorting effect of the materials with small color difference and dark color is improved; in addition, the infrared lens module of the detection device comprises two infrared lenses, infrared light with different wave bands can be detected, and the infrared lens module is of an integrated structure and is good in stability.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A detection device for a material sorting apparatus, the detection device comprising:
the infrared light source groups are respectively positioned on two sides of the material trough (1), each infrared light source group comprises a plurality of infrared light sources (2), and each infrared light source (2) in the plurality of infrared light sources (2) comprises a plurality of infrared light emitting lamps;
the first signal receiving units (3) are respectively positioned on two sides of the material trough and used for receiving infrared light diffuse reflection signals reflected by the materials.
2. The detection device according to claim 1, wherein the first signal receiving unit (3) comprises an infrared lens module comprising:
the dichroic mirror (301) is used for receiving the infrared light diffuse reflection signal and dividing the received infrared light diffuse reflection signal into two paths of infrared light diffuse reflection signals;
the first infrared lens (302) is used for receiving one path of infrared light diffuse reflection signals in the two paths of infrared light diffuse reflection signals;
the second infrared lens (303) is used for receiving the other infrared light diffuse reflection signal in the two infrared light diffuse reflection signals;
the first infrared lens (302) and the second infrared lens (303) are arranged orthogonally.
3. The detection apparatus according to claim 2, wherein the infrared lens module further comprises a holder (304) for mounting the dichroic mirror (301), the first infrared lens (302) and the second infrared lens (303), and the holder (304) is an integrally molded structure.
4. The detection device according to claim 3, wherein the first infrared lens (302) receives the infrared diffuse reflection signal with a wavelength range of 1050-1150 nm, and the second infrared lens (303) receives the infrared diffuse reflection signal with a wavelength range of 1250-1350 nm.
5. The detection apparatus according to claim 1, wherein the first signal receiving unit (3) comprises a fiber optic probe and a spectrometer.
6. The detection apparatus according to any one of claims 1 to 5, further comprising:
the visible light source groups are respectively positioned on two sides of the material trough (1), each visible light source group comprises at least one visible light source (4), and each visible light source (4) in the at least one visible light source (4) comprises a plurality of visible light emitting lamps;
and the second signal receiving units (5) are respectively positioned at two sides of the material trough and are used for receiving visible light diffuse reflection signals reflected by the materials.
7. A detection device according to claim 6, characterized in that the second signal receiving unit (5) comprises a visible light lens, or a fiber optic probe and a spectrometer.
8. The detecting device according to claim 7, wherein the infrared light source set emits infrared light with a wavelength range of 900 to 2500 nm.
9. An apparatus for sorting materials, comprising:
the material trough is used for conveying materials to be sorted;
the detection device of any one of claims 6 to 8;
the signal conversion unit is used for converting the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals;
the processor is used for identifying the materials according to the received electric signals so as to judge whether the materials need to be removed and controlling the removing devices at the corresponding positions to be started under the condition that the materials need to be removed; and
the rejecting device.
10. A method of sorting materials using the material sorting apparatus of claim 9, comprising:
visible light emitted by the visible light source group and infrared light emitted by the infrared light source group irradiate the material;
the first signal receiving unit receives the infrared light diffuse reflection signal and sends the infrared light diffuse reflection signal to the signal conversion unit;
the second signal receiving unit receives the visible light diffuse reflection signal and sends the visible light diffuse reflection signal to the signal conversion unit;
the signal conversion unit converts the infrared light diffuse reflection signal and the visible light diffuse reflection signal into electric signals;
the processor identifies the materials according to the received electric signals so as to judge whether the materials need to be removed, and controls a removing device at a corresponding position to start under the condition that the materials need to be removed;
the rejecting device rejects the materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054644.1A CN111451176A (en) | 2019-01-21 | 2019-01-21 | Detection device for material sorting equipment, material sorting equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054644.1A CN111451176A (en) | 2019-01-21 | 2019-01-21 | Detection device for material sorting equipment, material sorting equipment and method |
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| CN111451176A true CN111451176A (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910054644.1A Pending CN111451176A (en) | 2019-01-21 | 2019-01-21 | Detection device for material sorting equipment, material sorting equipment and method |
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| US20120145607A1 (en) * | 2009-08-19 | 2012-06-14 | Binder + Co Ag | Method and an apparatus for detecting leaded pieces of glass |
| CN203470363U (en) * | 2013-08-16 | 2014-03-12 | 合肥泰禾光电科技股份有限公司 | Visible light and infrared material combined separation equipment |
| CN104368540A (en) * | 2014-10-22 | 2015-02-25 | 中国农业大学 | Double-wavelength automatic grain sorter based on near infrared technology |
| US20160207071A1 (en) * | 2015-01-15 | 2016-07-21 | Avi COHN | Sorting system |
| CN106269570A (en) * | 2015-05-29 | 2017-01-04 | 合肥美亚光电技术股份有限公司 | The sorting unit of material and method for separating |
| CN208177898U (en) * | 2016-08-30 | 2018-12-04 | 宾德股份公司 | For detecting the device of the object in material flow |
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2019
- 2019-01-21 CN CN201910054644.1A patent/CN111451176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325605A (en) * | 2008-12-23 | 2012-01-18 | 布勒索特克斯有限公司 | Sorting method and apparatus |
| US20120145607A1 (en) * | 2009-08-19 | 2012-06-14 | Binder + Co Ag | Method and an apparatus for detecting leaded pieces of glass |
| CN203470363U (en) * | 2013-08-16 | 2014-03-12 | 合肥泰禾光电科技股份有限公司 | Visible light and infrared material combined separation equipment |
| CN104368540A (en) * | 2014-10-22 | 2015-02-25 | 中国农业大学 | Double-wavelength automatic grain sorter based on near infrared technology |
| US20160207071A1 (en) * | 2015-01-15 | 2016-07-21 | Avi COHN | Sorting system |
| CN106269570A (en) * | 2015-05-29 | 2017-01-04 | 合肥美亚光电技术股份有限公司 | The sorting unit of material and method for separating |
| CN208177898U (en) * | 2016-08-30 | 2018-12-04 | 宾德股份公司 | For detecting the device of the object in material flow |
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