CN110572550B - Discontinuous conveying material image signal acquisition device - Google Patents
Discontinuous conveying material image signal acquisition device Download PDFInfo
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- CN110572550B CN110572550B CN201910905209.5A CN201910905209A CN110572550B CN 110572550 B CN110572550 B CN 110572550B CN 201910905209 A CN201910905209 A CN 201910905209A CN 110572550 B CN110572550 B CN 110572550B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to an intermittent material conveying image signal acquisition device, which comprises a scanning mechanism arranged above the discharge end of a conveying unit, wherein the scanning mechanism comprises a CCD acquisition camera, the CCD acquisition camera is arranged on a turnover unit, the turnover unit is started and is used for linking the CCD acquisition camera to the material at the discharge end of the conveying unit, a self-cleaning mechanism is arranged on the CCD acquisition camera, and the CCD acquisition camera is in two states of upward lens and downward lens, when acquisition is not needed, the CCD acquisition camera is turned over and is far away from the material at the discharge end of the conveying unit, so that the damage to the CCD acquisition camera is avoided, and in the turning process of the CCD acquisition camera, the automatic cleaning of the CCD acquisition camera can be realized, and the image signal acquisition reliability of the CCD acquisition camera is ensured.
Description
Technical Field
The invention relates to the technical field of intelligent equipment, in particular to an image signal acquisition device for discontinuous conveying materials.
Background
The CCD collecting camera is widely applied to industrial equipment and can be used for identifying articles, for example, in the field of color sorters, the CCD collecting camera can accurately collect the articles to be selected, the articles are screened by judging the color or shape of the articles, one end of the CCD collecting camera is arranged above or below a path of a commodity, when the CCD collecting camera is positioned above the commodity, the color of the commodity on an upper conveying belt is collected by the CCD collecting camera and is further sent to a control unit for judgment, and after the judgment, a control mechanism is started to remove the sorted materials of different colors or special-shaped belts from a conveying device, so that the CCD collecting camera is not only applied to the color sorters, but also used for collecting the color or shape information of the articles in other industrial equipment; in a word, when the material is judged for intermittent conveying, the CCD collecting camera needs to be protected when collecting the material information, the CCD collecting camera is prevented from continuously facing the material, so as to prevent the jumping material from damaging the CCD collecting camera when the material is intermittently conveyed, and the existing material can generate huge dust when being actually conveyed, the signal acquisition of the CCD acquisition camera is greatly interfered, for this purpose, the CCD acquisition camera is provided with dust-proof glass, the ash removal mechanism is arranged on the ash separation glass, however, the ash removal mechanism in the prior art is mostly in a mode of driving an ash removal brush by a cylinder, although the mode can play the role of ash removal, the cost is high, and a pressure air path system is also needed to be separately arranged for starting the air cylinder, which is obviously not suitable for some systems which are inconvenient to arrange the pressure air path.
Disclosure of Invention
The invention aims to provide an image signal acquisition device for an intermittent conveyed material, which can realize self-cleaning of a CCD acquisition camera and prevent the CCD acquisition camera and ash-isolating glass from being damaged by a material jumped up in the conveying process of the CCD.
The technical scheme adopted by the invention is as follows.
The utility model provides an intermittent type carries material image signal collection system, is including setting up the scanning mechanism in the conveying unit discharge end top, scanning mechanism includes CCD collection camera, CCD collection camera sets up on the upset unit, and the upset unit starts and links the directional material of conveying unit discharge end of CCD collection camera, be provided with automatically cleaning mechanism on the CCD collection camera, CCD collection camera is in the camera lens and when two kinds of states down, automatically cleaning mechanism implements the cleaning operation of gathering the camera front end to CCD.
The invention also has the following features:
CCD gathers camera equidistance and distributes to in the camera casing, the both ends of camera casing are provided with the pivot, the pivot rotary type sets up on the support frame in transport unit delivery end the place ahead, and upset unit drive pivot presents the rotation.
The acquisition end that CCD gathered the camera is provided with the glass face guard, be provided with on the glass face guard and scrape the flitch, when upset unit drive camera casing upset and make the glass face guard down, the tip of scraping the flitch supports with the glass face guard and leans on, and implements the ash operation of scraping to the glass face guard.
The CCD gathers the camera and is provided with 4 along the length direction interval of camera casing.
The camera comprises a camera shell, a glass mask, a CCD acquisition camera and a control circuit, wherein the camera shell is arranged in a closed space, the open surface.
The self-cleaning mechanism comprises sliding material rails arranged on two sides of the camera shell, the length direction of the sliding material rails is parallel to that of the glass mask, and two ends of the scraping plate are arranged in the sliding material rails in a sliding mode through connecting mechanisms.
The glass mask is characterized in that a sliding hole is formed in the sliding material rail, the sliding hole is a rectangular hole and is arranged along the length direction of the sliding material rail, a sliding hole core is horizontal and is perpendicular to the length direction of the glass mask, supporting rods extend from two ends of the scraping plate, and rod ends of the supporting rods extend into the sliding hole.
The extension end of the supporting rod is provided with a rolling bearing, the axis of the rolling bearing is parallel to the direction of the center of the sliding hole, and the outer wall of the rolling bearing is abutted against the hole wall of the sliding hole.
The slide hole is a strip-shaped hole, and the width of the slide hole is slightly larger than the diameter of the rolling bearing.
The connecting rod is further extended from the supporting rod and extends to the middle position of the back face of the camera shell, and a balancing weight is hinged to the connecting rod.
The invention has the technical effects that: gather the camera rotary type setting with CCD and put in conveying unit discharge end top position, when needs are to material image information collection on the conveying unit, CCD gathers the material of camera upset and directional conveying unit discharge end, when need not to gather, CCD gathers the camera upset and keeps away from with the material of conveying unit discharge end, and then avoid gathering the harm of camera to CCD, and CCD gathers the camera at the in-process of upset, can realize gathering the self-cleaning of camera to CCD, ensure that CCD gathers the reliability that camera image signal gathered.
Drawings
Fig. 1 and fig. 2 are schematic diagrams of two states of an image signal acquisition device for an intermittent conveying material;
fig. 3 to 5 are schematic diagrams of three viewing angle structures of a CCD acquisition camera;
FIG. 6 is a schematic view of a planar structure of a CCD camera with its collection end facing vertically downward;
fig. 7 is a schematic plan view of the CCD acquisition camera with the acquisition end facing vertically upward.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for machining or human error, legibility and inconsistency; the following describes the specific features of the discontinuous conveying material image signal acquisition device in detail:
an image signal acquisition device for an intermittent conveying material comprises a scanning mechanism arranged above a discharge end of a conveying unit 10, wherein the scanning mechanism comprises a CCD (charge coupled device) acquisition camera 20, the CCD acquisition camera 20 is arranged on a turning unit, the turning unit is started and is linked with the CCD acquisition camera 20 to point to the material at the discharge end of the conveying unit 10, a self-cleaning mechanism is arranged on the CCD acquisition camera 20, and when the CCD acquisition camera 20 is in two states of a lens facing upwards and a lens facing downwards, the self-cleaning mechanism performs cleaning operation on the front end of the CCD acquisition camera 20;
combine fig. 1 and fig. 2 to show, conveying mechanism when conveying unit 10 is the track, the realization is carried the discontinuous of material, when conveying unit 10 implements when carrying the material, the material of CCD collection camera 20 upset and directional conveying unit 10 discharge end, when need not to gather, CCD collection camera 20 upset and keep away from with the material of conveying unit 10 discharge end, and then avoid gathering camera 20's harm to CCD, and CCD collection camera 20 is at the in-process of upset, can realize gathering camera 20's self-cleaning to CCD, ensure that CCD gathers camera 20 image signal acquisition's reliability.
Specifically, in order to realize the turning of the CCD acquisition camera 20, the CCD acquisition camera 20 is equidistantly distributed in the camera housing 21, two ends of the camera housing 21 are provided with rotating shafts 211, the rotating shafts are rotatably arranged on the support frame in front of the output end of the conveying unit 10, and the turning unit drives the rotating shafts 211 to rotate;
when needs gather camera 20 upset to CCD, present 180 rotations through starting upset unit drive pivot 211, can realize gathering camera 20 to CCD and present 180 reciprocating rotation for CCD gathers camera 20's collection end and presents vertical upwards and vertical decurrent two kinds of states, and the upset unit is the motor that sets up on the support frame, and then realizes gathering camera 20's upset to CCD.
A glass mask 22 is arranged at the acquisition end of the CCD acquisition camera 20, a scraping plate 23 is arranged on the glass mask 22, the camera shell 21 is driven by the overturning unit to overturn, when the glass mask 22 faces downwards, the end part of the scraping plate 23 is abutted against the glass mask 22, and ash scraping operation on the glass mask 22 is implemented;
self-cleaning mechanism starts for scrape flitch 23 and remove along glass face guard 22, and then realize scraping grey operation to glass face guard 22, ensure that glass face guard 22 is clean, in order to ensure CCD to gather camera 20's collection precision, scrape flitch 23 board end and be provided with the grey strip of scraping of rubber, thereby can ensure to scrape grey reliability to glass face guard 22 when, avoid producing the scratch to glass face guard 22.
Specifically, as shown in fig. 4 and 5, the number of the CCD cameras 20 is 4 along the length direction of the camera housing 21.
As a preferable scheme of the present invention, as shown in fig. 6 and 7, the opening surface of the camera housing 21 is an inclined surface, one end of the opening surface is high, and the other end is low, the glass cover 22 is disposed in the opening surface of the camera housing 21 and arranged in parallel, and the acquisition end of the CCD acquisition camera 20 is parallel to the direction of the opening;
the self-cleaning mechanism comprises material sliding rails 24 arranged on two sides of the camera shell 21, the length direction of the material sliding rails 24 is parallel to the length direction of the glass mask 22, and two ends of the material scraping plate 23 are arranged in the material sliding rails 24 in a sliding mode through a connecting mechanism;
when the camera housing 21 is turned over to the glass mask 22 facing downwards, the scraper plate 23 can move along the sliding rail 24, and due to the inclined arrangement of the glass mask 22, under the action of gravity, a component force exists along the length direction of the sliding rail 24, so that the end ash scraping rubber strip of the scraper plate 23 abuts against the glass mask 22 and slides along the glass mask 22, and the self-cleaning operation of the glass mask 22 is realized;
the sliding rail 24 is provided with a sliding hole 241, the sliding hole 241 is a rectangular hole and is arranged along the length direction of the sliding rail 24, the hole core of the sliding hole 241 is horizontal and vertical to the length direction of the glass mask 22, two ends of the scraping plate 23 extend to form a supporting rod 231, and the rod end of the supporting rod 231 extends into the sliding hole 241;
the extending end of the supporting rod 231 is provided with a rolling bearing 232, the axis of the rolling bearing 232 is parallel to the hole center direction of the sliding hole 241, and the outer wall of the rolling bearing 232 is abutted against the hole wall of the sliding hole 241;
as shown in fig. 3 to 5, the extension end of the support rod 231 is provided with a rolling bearing 232, and the rolling bearing 232 can effectively reduce the resistance of the scraper plate 23 in traveling along the rail, so as to ensure that the scraper plate 23 moves along the length direction of the glass mask 22 under the driving of no external force, so as to achieve the ash removal operation on the glass mask 22;
when the camera shell 21 is turned over to the glass mask 22 upwards, the scraper plate 23 can move reversely along the length direction of the material sliding rail 24 under the action of the gravity of the scraper plate 23, so as to realize further dust cleaning operation on the glass mask 22;
further preferably, the sliding hole 241 is a strip-shaped hole, and the width of the sliding hole 241 is slightly larger than the diameter of the rolling bearing 232;
when the camera shell 21 is turned over to the glass mask 22 upwards, under the action of self gravity, the scraping rubber strips at the plate ends of the scraping plates 23 can further improve the extrusion pressure with the glass mask 22, so that the scraping reliability of the glass mask 22 is realized;
the width of the sliding hole 241 is slightly larger than the diameter of the rolling bearing 232 and can be set to be 1-2 mm, so that the problem that the camera shell 21 is turned over to the glass mask 22 upwards, and the rubber strip of the scraper 23 is too large in extrusion deformation to cause too large resistance and cannot be lowered is solved.
A connecting rod 233 also extends from the supporting rod 231, the connecting rod 233 extends to the middle position of the back surface of the camera housing 21, and a balancing weight 234 is hinged on the connecting rod 233;
the weight 234 can ensure the normal sliding of the scraper plate 23 along the sliding hole 241 of the sliding rail 24, thereby ensuring the effective dust cleaning operation of the glass mask 282.
The material sliding rails 24 are arranged at two sides of the camera housing 21 to realize stable linear guide of the scraper plates 23, and a limiting ring 2331 is arranged at the inner ring position of the rolling bearing 232, the limiting ring 2331 is respectively arranged on the connecting rods 233 at two sides, and the limiting ring 2331 is close to or abutted against the inner rings of the rolling bearing 232 at two sides of the camera housing 21;
when the CCD acquisition camera 20 is turned over, the above-mentioned spacing ring 2331 can effectively realize the spacing of the turning mechanism, realize the connection of the above-mentioned mechanisms, ensure the realization of stable linear guidance of the scraper 23, and the spacing ring 2331 is close to or abutted against the inner rings of the rolling bearings 232 on both sides of the camera housing 21, thereby reducing the resistance generated by the abutment of the spacing ring 2331 and the rolling bearings 232.
An image signal acquisition method of an intermittent material conveying device comprises the following steps:
A. arranging a CCD acquisition camera 20 above the discharge end of the conveying unit 10;
B. arranging the CCD collecting camera 20 on the overturning unit, enabling the collecting end of the CCD collecting camera 20 to point to the position above the discharging end of the conveying unit 10 when the conveying unit 10 conveys, and enabling the collecting end of the CCD collecting camera (20) to be far away from the position above the discharging end of the conveying unit 10 when the conveying unit 10 stops conveying;
C. the self-cleaning mechanism is arranged in front of the collecting end of the CCD collecting camera 20, when the collecting end of the CCD collecting camera 20 is far away from the position above the discharging end of the conveying unit 10, the self-cleaning mechanism cleans the collecting end of the CCD collecting camera 20, and when the collecting end of the CCD collecting camera 20 points to the position above the discharging end of the conveying unit 10, the self-cleaning mechanism cleans the collecting end of the CCD collecting camera 20.
In the step C, when the self-cleaning mechanism cleans the collecting end of the CCD collecting camera 20, the collecting end of the CCD collecting camera 20 is in a vertically downward state and a vertically upward state, respectively.
CCD gathers camera 20 equidistance and distributes to in the camera casing 21, the both ends of camera casing 21 are provided with pivot 211, the pivot rotary type sets up on the support frame in conveying unit 10 play end the place ahead, and upset unit drive pivot 211 presents the rotation.
The collection end that camera 20 was gathered to CCD is provided with glass face guard 22, be provided with on the glass face guard 22 and scrape flitch 23, when upset unit drive camera casing 21 overturned and made glass face guard 22 down, the tip that scrapes flitch 23 supports with glass face guard 22 and leans on, and implements the ash operation of scraping to glass face guard 22, CCD gathers camera 20 and is provided with 4 along camera casing 21's length direction interval.
The opening surface of the camera housing 21 is an inclined surface, one end of the opening surface is high, the other end of the opening surface is low, the glass face shield 22 is arranged in the opening surface of the camera housing 21 and is arranged in parallel, and the acquisition end of the CCD acquisition camera 20 is parallel to the direction of the opening.
The self-cleaning mechanism comprises sliding material rails 24 arranged on two sides of the camera shell 21, the length direction of the sliding material rails 24 is parallel to the length direction of the glass mask 22, and two ends of the scraper 23 are slidably arranged in the sliding material rails 24 through a connecting mechanism.
The sliding rail 24 is provided with a sliding hole 241, the sliding hole 241 is a rectangular hole and is arranged along the length direction of the sliding rail 24, the hole core of the sliding hole 241 is horizontal and vertical to the length direction of the glass mask 22, two ends of the scraper 23 extend to form a support rod 231, and the rod end of the support rod 231 extends into the sliding hole 241.
The extension end of the support rod 231 is provided with a rolling bearing 232, the axis of the rolling bearing 232 is parallel to the hole center direction of the sliding hole 241, and the outer wall of the rolling bearing 232 is abutted against the hole wall of the sliding hole 241.
The sliding hole 241 is a strip-shaped hole, and the width of the sliding hole 241 is slightly larger than the diameter of the rolling bearing 232.
A connecting rod 233 also extends from the supporting rod 231, the connecting rod 233 extends to the middle position of the back surface of the camera housing 21, and a balancing weight 234 is hinged on the connecting rod 233.
Claims (4)
1. The utility model provides a material image signal pickup assembly is carried to discontinuous which characterized in that: the automatic cleaning device comprises a scanning mechanism arranged above the discharge end of a conveying unit (10), wherein the scanning mechanism comprises a CCD (charge coupled device) acquisition camera (20), the CCD acquisition camera (20) is arranged on a turning unit, the turning unit is started and is linked with the CCD acquisition camera (20) to point to materials at the discharge end of the conveying unit (10), a self-cleaning mechanism is arranged on the CCD acquisition camera (20), and when the CCD acquisition camera (20) is in two states of a lens facing upwards and downwards, the self-cleaning mechanism performs cleaning operation on the front end of the CCD acquisition camera (20);
the CCD acquisition cameras (20) are equidistantly distributed in the camera shell (21), rotating shafts (211) are arranged at two ends of the camera shell (21) and rotatably arranged on a support frame in front of the outlet end of the conveying unit (10), and the rotating shafts (211) are driven to rotate by the overturning unit;
the collecting end of the CCD collecting camera (20) is provided with a glass mask (22), a scraping plate (23) is arranged on the glass mask (22), the overturning unit drives the camera shell (21) to overturn and enables the glass mask (22) to face downwards, the end part of the scraping plate (23) is abutted against the glass mask (22), and ash scraping operation on the glass mask (22) is implemented;
the number of the CCD acquisition cameras (20) is 4 along the length direction of the camera shell (21) at intervals;
the opening surface of the camera shell (21) is an inclined surface, one end of the opening surface is high, the other end of the opening surface is low, the glass face covers (22) are arranged in the opening surface of the camera shell (21) and are arranged in parallel, and the acquisition end of the CCD acquisition camera (20) is parallel to the direction of the opening;
the self-cleaning mechanism comprises sliding material rails (24) arranged on two sides of the camera shell (21), the length direction of the sliding material rails (24) is parallel to the length direction of the glass mask (22), and two ends of the scraping plate (23) are arranged in the sliding material rails (24) in a sliding mode through a connecting mechanism;
be provided with slide opening (241) on sliding material track (24), slide opening (241) are the rectangular hole and arrange along the length direction of sliding material track (24), slide opening (241) hole core level just is perpendicular with glass face guard (22) length direction, the both ends of scraping flitch (23) extend there are branch (231), the rod end of branch (231) extends into in slide opening (241).
2. The intermittent conveying material image signal acquisition device according to claim 1, characterized in that: the extension end of the support rod (231) is provided with a rolling bearing (232), the axis of the rolling bearing (232) is parallel to the hole center direction of the sliding hole (241), and the outer wall of the rolling bearing (232) is abutted against the hole wall of the sliding hole (241).
3. The intermittent conveying material image signal acquisition device according to claim 2, characterized in that: the sliding hole (241) is a strip-shaped hole, and the width of the sliding hole (241) is slightly larger than the diameter of the rolling bearing (232).
4. The intermittent conveying material image signal acquisition device according to claim 3, characterized in that: a connecting rod (233) also extends from the support rod (231), the connecting rod (233) extends to the middle position of the back surface of the camera shell (21), and a balancing weight (234) is hinged to the connecting rod (233).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910905209.5A CN110572550B (en) | 2019-09-24 | 2019-09-24 | Discontinuous conveying material image signal acquisition device |
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| CN201910905209.5A CN110572550B (en) | 2019-09-24 | 2019-09-24 | Discontinuous conveying material image signal acquisition device |
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| CN110572550A CN110572550A (en) | 2019-12-13 |
| CN110572550B true CN110572550B (en) | 2020-12-29 |
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| US6661450B2 (en) * | 1999-12-03 | 2003-12-09 | Fuji Photo Optical Co., Ltd. | Automatic following device |
| CN203732461U (en) * | 2014-03-08 | 2014-07-23 | 华中农业大学 | Horizontal conveying and constant-speed turnover device for acquiring quality images of potatoes |
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