CN101832944A - On-line detection technology of reversion defect of disposable injection needle - Google Patents
On-line detection technology of reversion defect of disposable injection needle Download PDFInfo
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- CN101832944A CN101832944A CN200910186790A CN200910186790A CN101832944A CN 101832944 A CN101832944 A CN 101832944A CN 200910186790 A CN200910186790 A CN 200910186790A CN 200910186790 A CN200910186790 A CN 200910186790A CN 101832944 A CN101832944 A CN 101832944A
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- needle
- reversion
- defect
- syringe needle
- disposable injection
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Abstract
The invention discloses an on-line detection technology of the reversion defect of a disposable injection needle. A detection device comprises a lighting device and a CCD industrial digital camera used for acquiring an image; a conveying device comprises a [c] FP controller, a step motor, a belt wheel, a conveying belt and the like; and a virtual apparatus LabVIEW is used for constructing a software platform to realize automatic detection and alarming of the reversion defect of the injection needle. In a process of producing and assembling the disposable injection head, the needle is easy to produce the reversion defect (a needle point is inserted into a needle stand); and because shapes of the needle point and the bottom are different, the shape of the needle point after the reversion changes, which is the detection basis. The designed lighting device provides uniform stable shadowless lighting, under the action of the lighting device, the CCD camera obtains a sharp image of the needle point, and the reversion or not of the needle can be detected accurately by using the LabVIEW virtual software platform. A detection result is directly displayed by computer software and alarmed.
Description
Technical field
The present invention relates to a kind of online measuring technique, relate in particular to a kind of online measuring technique that reversion defect of disposable injection needle detects that is used for.
Background technology
At present, the first-born product of the injection needles of China enterprise adopts the method for artificial visual to check whether there is the syringe needle reversed phenomenon in the syringe needle production line.This artificial visual method workload is big, again because the diameter of syringe needle is very little, long-time artificial visual causes the poor reliability of detection, depend on testing staff's experience and sense of responsibility, long-time repetition operation easily causes visual fatigue, work efficiency is extremely low, and bigger to the human eye injury, can not adapt to the needs of large-scale production.
Summary of the invention
The purpose of this invention is to provide a kind of online measuring technique that reversion defect of disposable injection needle detects that is used for, judge whether to exist the phenomenon of anti-dress, thereby realize easy, the anti-defects detection of adorning of syringe needle fast and accurately by the image of gathering the needle point position.
For achieving the above object, on the one hand, the invention provides a kind of be used for that reversion defect of disposable injection needle detects at line technology and device, it comprises: the lighting source that provides image acquisition required is provided lighting device; Motion control device is used to control the start and stop of syringe needle transmitting speed and stepper motor; The CCD camera is used to gather the image of syringe needle; PC is used for software development and adorns identification to syringe needle is counter under LabVIEW.
Preferably, lighting device is made of the parallel connection of many row LED lamps, and at shadow surface ground glass is installed.
Preferably, motion control device adopts [c] FP-PWM-520 control module as the Stepping Motor Control device.
On the other hand, the invention provides a kind of online test method that reversion defect of disposable injection needle detects that is used for, the steps include: that PC passes to motor control signal [c] FP-PWM-520 module by Ethernet, by the direct control step motor of this module, to regulate the start and stop of syringe needle transmitting speed and control transmission device.After syringe needle enters CCD camera coverage, under the effect of lighting device, the camera acquisition image also is delivered to PC to image information by USB interface, utilize digital image processing techniques the image that collects to be handled again with independently developed software, and detect syringe needle and whether have defective, finally in software interface, show testing result.
The invention has the beneficial effects as follows: can avoid artificial visual to detect all difficulties that bring, realize the anti-defects detection of adorning of syringe needle fast and accurately, can satisfy the requirement of industrial online production.
Description of drawings
Fig. 1 is an on-line measuring device principle schematic of the present invention
Fig. 2 is lighting device design concept figure of the present invention
Fig. 3 is injection needle defect detecting device debugging of the present invention interface
Fig. 4 is that injection needle defect detecting device of the present invention is analyzed (syringe needle is qualified) interface
Fig. 5 is that injection needle defect detecting device of the present invention is analyzed (syringe needle is made mistakes) interface
Fig. 6 is the Step-motor Control program flow diagram
Among the figure, 1, illuminator; 2, stepping motor; 3, industrial digital video camera; 4, [c] FP-PWM-520 control module; 5, baffle; 6, travelling belt; 7, belt wheel; 8, ground glass; 9, LED lamp group; 10, base.
Embodiment
The inventive system comprises: lighting device, stepping motor and driver, motor control module [c] FP-PWM-520, CCD camera, camera lens, PC, travelling belt and belt wheel etc.
Existing entry needle production run is, at first by the entry needle base is installed on the faller gill, by automatic installation apparatus injection needle is injected the entry needle base again, whole pin is disposed on the automatic conveying belt on the syringe needle production line, carry out operations such as brush coating, oven dry at last., in entry needle base autoinstall procedure, tip portion often occurs and insert base phenomenon, mentioned reversed phenomenon promptly of the present invention at injection needle.Existing manufacturing enterprise wastes time and energy by arranging full-time staff's artificial visual to detect at this station, and detection efficiency is extremely low.Therefore, the present invention sends the Electric Machine Control instruction by PC, directly acts on the syringe needle transmitting device by [c] FP-PWM-520 module, controls syringe needle transmitting speed and transmission start and stop with this.When syringe needle enters in the sensing range of CCD camera, under the effect of lighting device, the camera acquisition image also is delivered to PC to image information by USB interface, utilize digital image processing techniques that the image that collects is handled again, and detect syringe needle and whether have defective, finally in software interface, show testing result.There is the syringe needle reversed phenomenon if detect, then adopts sound and light alarm, and show the position of anti-dress syringe needle.If there is not reversed phenomenon, it is qualified then to show.
Claims (4)
1. on-line detection technology of reversion defect of disposable injection needle, it is characterized in that: evenly illuminate tested syringe needle deck region by lighting device, tested syringe needle deck passes through the travelling belt transmission by stepper motor, after deck and syringe needle enter camera field of view, trigger travel switch, the CCD camera begins to take pictures, and the needle point image enters treating apparatus, device provides the anti-conclusion of whether adorning of needle point, triggers the step motor control travelling belt and continues transmission.
2. reversion defect of disposable injection needle quick online detection technology according to claim 1 is characterized in that: evenly lighting device can provide even shadowless lighting, to guarantee the syringe needle clear picture of being clapped.Comprise base, LED matrix lamp group, ground glass.This lighting device adopts diffuse scattering lighting system dorsad.
3. reversion defect of disposable injection needle quick online detection technology according to claim 1, it is characterized in that: the detection software that device is adopted utilizes the virtual development platform LabVIEW exploitation of America NI company, detect software and can discern whether anti-dress of syringe needle automatically, and can show anti-dress syringe needle present position and sound and light alarm after recognizing anti-dress.
4. reversion defect of disposable injection needle quick online detection technology according to claim 1 is characterized in that: motion control device is implemented control by PC by [c] FP-PWM-520 module, can realize the start and stop and the speed control of transmitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186790A CN101832944A (en) | 2009-12-23 | 2009-12-23 | On-line detection technology of reversion defect of disposable injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186790A CN101832944A (en) | 2009-12-23 | 2009-12-23 | On-line detection technology of reversion defect of disposable injection needle |
Publications (1)
| Publication Number | Publication Date |
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| CN101832944A true CN101832944A (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186790A Pending CN101832944A (en) | 2009-12-23 | 2009-12-23 | On-line detection technology of reversion defect of disposable injection needle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963585A (en) * | 2010-10-18 | 2011-02-02 | 杨莲英 | Needle missing detection device for disposable blood taking needle |
| CN102495075A (en) * | 2011-11-14 | 2012-06-13 | 无锡众望四维科技有限公司 | Automatic detecting method of machine vision system for cross section direction of syringe needle |
| CN103042386A (en) * | 2012-12-31 | 2013-04-17 | 安徽工业大学 | Rotary bearing mounting system on basis of labview and method for controlling rotary bearing mounting system |
| CN103134811A (en) * | 2011-11-30 | 2013-06-05 | 上海康德莱企业发展集团股份有限公司 | Method of detecting burr of pinpoint of injector |
| CN104796617A (en) * | 2015-04-30 | 2015-07-22 | 北京星河康帝思科技开发股份有限公司 | Visual inspection method and system for assembly lines |
| CN105115982A (en) * | 2015-09-29 | 2015-12-02 | 山东新华医疗器械股份有限公司 | Light inspection machine and card loading and conveying device thereof |
-
2009
- 2009-12-23 CN CN200910186790A patent/CN101832944A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963585A (en) * | 2010-10-18 | 2011-02-02 | 杨莲英 | Needle missing detection device for disposable blood taking needle |
| CN101963585B (en) * | 2010-10-18 | 2012-09-19 | 李晓双 | Needle missing detection device for disposable blood taking needle |
| CN102495075A (en) * | 2011-11-14 | 2012-06-13 | 无锡众望四维科技有限公司 | Automatic detecting method of machine vision system for cross section direction of syringe needle |
| CN103134811A (en) * | 2011-11-30 | 2013-06-05 | 上海康德莱企业发展集团股份有限公司 | Method of detecting burr of pinpoint of injector |
| CN103134811B (en) * | 2011-11-30 | 2016-06-15 | 上海康德莱企业发展集团股份有限公司 | The detection method of a kind of needle point burr of syringe |
| CN103042386A (en) * | 2012-12-31 | 2013-04-17 | 安徽工业大学 | Rotary bearing mounting system on basis of labview and method for controlling rotary bearing mounting system |
| CN103042386B (en) * | 2012-12-31 | 2015-04-01 | 安徽工业大学 | Rotary bearing mounting system on basis of labview and method for controlling rotary bearing mounting system |
| CN104796617A (en) * | 2015-04-30 | 2015-07-22 | 北京星河康帝思科技开发股份有限公司 | Visual inspection method and system for assembly lines |
| CN104796617B (en) * | 2015-04-30 | 2018-08-28 | 北京星河泰视特科技有限公司 | Visible detection method and system for assembly line |
| CN105115982A (en) * | 2015-09-29 | 2015-12-02 | 山东新华医疗器械股份有限公司 | Light inspection machine and card loading and conveying device thereof |
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Application publication date: 20100915 |