CN204555922U - Online circumference detecting device - Google Patents
Online circumference detecting device Download PDFInfo
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- CN204555922U CN204555922U CN201520230406.9U CN201520230406U CN204555922U CN 204555922 U CN204555922 U CN 204555922U CN 201520230406 U CN201520230406 U CN 201520230406U CN 204555922 U CN204555922 U CN 204555922U
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- installing plate
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Abstract
The utility model discloses a kind of online circumference detecting device, this online circumference detecting device comprises locating device, shell, installing plate, guide piece and sense channel, and both sides relative on shell arrange installing plate respectively and are embedded in the guide piece on shell; Installing plate inlays locating device; Sense channel is through installing plate, shell and guide piece; Locating device, installing plate, shell and guide piece form toroidal cavity jointly; Be laser via between locating device and guide piece, and laser via is communicated with toroidal cavity; Be provided with laser instrument and imageing sensor in toroidal cavity, laser instrument and imageing sensor are positioned at the two ends of laser via, and the axes normal of the axis of laser via and sense channel and crossing; Installing plate is provided with element board, and laser instrument and imageing sensor are all fixed on element board.The disclosed online circumference detecting device of the utility model solves the problem affecting accuracy of detection because assay device structures is complicated.
Description
Technical field
The utility model relates to the technical field that instrument and meter is measured, and more specifically, relates to a kind of online circumference detecting device.
Background technology
Current bar circumference detection method is generally divided into offline inspection and on-line checkingi two kinds of modes.After namely offline inspection method has produced bar-shaped finished product (as cigarette) on a production line, separately the circumference (comprising circumferential length and circularity) of bar-shaped finished product is detected by checkout equipment; But offline inspection method can not feed back to operating personnel timely when bar-shaped finished product goes wrong, can not process in time when causing bar-shaped finished product to go wrong, thus cause quality accident.Therefore, line detection method is typically employed in prior art.
Namely on_line detection method arranges checkout equipment on a production line, and carries out circumference detection to each bar-shaped finished product that production line is produced.The on_line detection method of usual employing is laser detection method.Namely this laser detection method installs laser detection equipment on a production line, the circumference of the bar-shaped finished product of laser detection input sent by laser detection equipment.
But, the laser detection equipment of laser detection method is structurally comparatively complicated and be not easy to install, after using for a long time, may occur between the parts of laser detection equipment loosening, because laser is comparatively responsive, when laser detection equipment position changes, the accuracy of detection of bar circumference can be affected.
Utility model content
The purpose of this utility model is to provide a kind of online circumference detecting device, solves the problem affecting accuracy of detection because assay device structures is complicated described in background technology.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of online circumference detecting device, it is characterized in that, described online circumference detecting device comprises locating device, shell, installing plate, guide piece and sense channel, wherein,
Both sides relative on described shell arrange described installing plate respectively and inlay described guide piece on the housing, and described installing plate is not connected with described guide piece;
Described installing plate inlays locating device, and described locating device corresponds to described guide piece;
Described sense channel is through described locating device, installing plate, described shell and described guide piece;
Described locating device, described installing plate, described shell and described guide piece form toroidal cavity jointly;
Be laser via between described locating device and described guide piece, and described laser via is communicated with described toroidal cavity;
Be provided with laser instrument and imageing sensor in described toroidal cavity, described laser instrument and described imageing sensor are positioned at the two ends of described laser via, and the axes normal of the axis of described laser via and described sense channel and crossing;
Described installing plate is provided with element board, and described laser instrument and described imageing sensor are all fixed on described element board.
Preferably, in above-mentioned online circumference detecting device, described laser instrument and described imageing sensor have three groups, and laser instrument described in three groups and described imageing sensor are installed on described element board.
Preferably, in above-mentioned online circumference detecting device, described shell is provided with air-breather, and described air-breather is connected with described toroidal cavity.
Preferably, in above-mentioned online circumference detecting device, described air-breather is L-type gas joint, and described L-type gas joint is connected with described toroidal cavity.
Preferably, in above-mentioned online circumference detecting device, described laser instrument is semiconductor laser, and described semiconductor laser is arranged on described element board.
Preferably, in above-mentioned online circumference detecting device, described imageing sensor is ccd sensor, and described ccd sensor is arranged on described element board.
Preferably, in above-mentioned online circumference detecting device, between described guide piece and described shell, seal is provided with.
Preferably, in above-mentioned online circumference detecting device, between described installing plate and described element board, pad is provided with.
The utility model embodiment provides a kind of online circumference detecting device, on shell in described online circumference detecting device, relative both sides arrange described installing plate respectively and inlay described guide piece on the housing, and described installing plate is not connected with described guide piece; Described installing plate inlays locating device, and described locating device corresponds to described guide piece; Described guide piece, described shell, described installing plate and described locating device form an airtight toroidal cavity jointly, described installing plate is provided with element board, and described element board is provided with laser instrument and imageing sensor.When bar-shaped finished product enters sense channel, laser instrument Emission Lasers bundle, laser beam by laser via by light beam irradiation on described bar-shaped finished product, the laser beam be radiated on described bar-shaped finished product can be blocked by bar-shaped finished product, then imageing sensor can receive the above-mentioned laser beam blocked by bar-shaped finished product, formed with the image of bar-shaped finished product shade, last imageing sensor by above-mentioned image uploading to computing machine, by circumference and the circularity of the bar-shaped finished product of computer calculate.Because described laser instrument and described imageing sensor are all fixed on element board, and described element board is connected with described installing plate, as long as thus the position of described element board and described installing plate does not change, then the position of described laser instrument and described imageing sensor would not change, and then the position that described laser instrument gives off laser beam can not change, thus the precision of bar-shaped finished product circumference would not be affected, finally solve the problem affecting accuracy of detection because assay device structures is complicated described in background technology.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the stereographic map of the online circumference detecting device that the utility model embodiment provides;
Fig. 2 is the sectional view in the online circumference detecting device A-A direction that the utility model embodiment provides;
Fig. 3 is the laser detection schematic diagram of the online circumference detecting device that the utility model embodiment provides.
Illustrate:
1-locating device, 2-installing plate, 3-pad, 4-element board, 5-shell, 6-laser instrument, 7-imageing sensor, 8-seal, 9-guide piece, 10-coupling arrangement, 11-air-breather, 12-sense channel, 13-laser via, the bar-shaped finished product of 14-, 15-laser beam.
Embodiment
The purpose of this utility model is to provide a kind of online circumference detecting device, to solve the problem affecting accuracy of detection because assay device structures is complicated described in background technology.
Technical scheme in the utility model embodiment is understood better in order to make those skilled in the art person, and enable the above-mentioned purpose of the utility model embodiment, feature and advantage become apparent more, below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is described in further detail.
Please refer to accompanying drawing 1 and accompanying drawing 2, the online circumference detecting device that the utility model embodiment provides comprises locating device 1, shell 5, installing plate 2, guide piece 9 and sense channel 12.
Locating device 1 is embedded on installing plate 2, and locating device 1 can make bar-shaped finished product 14 (as cigarette) by certain position and enter this online circumference detecting device smoothly.
Shell 5 is external guard blocks of online circumference detecting device, protects all parts of online circumference detecting device inherence.
Installing plate 2 is connected by the side of screw with shell 5, plays fixing effect to the installation of shell 5.
Guide piece 9 is embedded in the opposite side of the shell 5 corresponding with installing plate 2, be not connected between guide piece 9 and installing plate 2 and leave certain gap, and guide piece 9 is corresponding with the position of locating device 1, the online circumference detecting device that guide piece 9 provides for bar-shaped finished product 14 being derived the utility model embodiment.
Sense channel 12, through locating device 1, installing plate 2, shell 5 and guide piece 9, carries out detection in the online circumference detecting device that sense channel 12 provides in the utility model embodiment for bar-shaped finished product 14 and provides a passage.
Above-mentioned locating device 1, above-mentioned installing plate 2, above-mentioned shell 5 and above-mentioned guide piece 9 form an annular cavity jointly.Described installing plate 2 is provided with element board 4, and being positioned at the laser instrument 6 of described toroidal cavity inside and imageing sensor 7 is all fixed on described element board 4, having a described laser instrument 6 of confession to send between described locating device 1 and described guide piece 9, laser beam passes through.Described laser instrument 6 and described imageing sensor 7 lay respectively at the both sides of sense channel 12, and the axes normal of the axis of described laser via 13 and described sense channel 12 and intersect.Because described laser instrument 6 and described imageing sensor 7 are all arranged on described element board 4, and described element board 4 is fixed on described installing plate 2, therefore, as long as there is not relative movement in described installing plate 2 and described element board 4, then the position of described laser instrument 6 and described imageing sensor 7 would not change, and then the image with bar-shaped finished product 14 shade received by described imageing sensor 7 deformation would not occur, thus improve the precision of bar-shaped finished product 14 circumference detection.
Please refer to accompanying drawing 2 and accompanying drawing 3, the course of work of the online circumference detecting device that the utility model embodiment provides is as follows: wind is sent in toroidal cavity by air-breather 11 by air-supply arrangement, wind enters sense channel 12 through the laser via 13 be connected with described toroidal cavity, eventually passes described sense channel 12 and discharges.The bar-shaped finished product 14 that production line is produced enters in described sense channel 12 accurately through locating device 1, and bar-shaped finished product 14 holds up by the wind delivering to described sense channel 12, and the inwall of bar-shaped finished product 14 and described sense channel 12 is contactless.While bar-shaped finished product 14 sends into described sense channel 12, described laser instrument 6 and described imageing sensor 7 are opened, laser instrument 6 launches laser beam 15, described laser beam 15 enters described sense channel 12 through described laser via 13, scope through the laser beam 15 of described laser via 13 will cover described laser via 13 and contact and the scope of the described sense channel 12 be communicated with, described laser beam 15 is radiated at the circumferential surface of bar-shaped finished product 14, thus described imageing sensor 7 can receive the image with bar-shaped finished product 14 shade.The above-mentioned image uploading that receives to computing machine, by the diameter of computing machine according to the bar-shaped finished product 14 of the shade width calculation in above-mentioned image, and is calculated circumferential length by diameter by described imageing sensor 7.Above-mentioned circumferential length is shown by the embedded display interface of online circumference detecting device.
Preferably, described laser instrument 6 and described imageing sensor 7 have three groups, laser instrument 6 described in three groups and described imageing sensor 7 are installed on the different position of described element board 4, the projected image of three diverse locations on the same xsect of bar-shaped finished product 14 can be recorded by laser instrument 6 described in three groups and described imageing sensor 7, computing machine just calculates three different bar-shaped finished product 14 diameters according to the projection width in above-mentioned three different projected images, and calculates circumferential length by diameter.Computing machine also according to above-mentioned three different bar-shaped finished product 14 diameters, can compare and calculate maximum gauge difference, and then draw the circularities of bar-shaped finished product 14.
Preferably, above-mentioned laser instrument 6 adopts semiconductor laser, and the volume of semiconductor laser is little, lightweight, can be fixed on preferably on described element board 4.Meanwhile, semiconductor laser little power consumption, efficiency are high, can adapt to for a long time and the production line of continuous working.
Preferably, above-mentioned imageing sensor 7 adopts ccd sensor (i.e. Charge Coupled Device, Charge Coupled Device (CCD) imageing sensor).The special process of ccd sensor can ensure that data can not distortion when transmitting, thus can ensure that the data of the circumferential length that computing machine calculates there will not be error, ensure that the accuracy of data.
When the bar-shaped finished product 14 produced is cigarette, the accuracy of detection of cigarette requires very strict, if have the latex that dust or cigarette shaping plume carry to be accumulated in described sense channel 12 detect mouth place, the width of the dash area in the image received by described imageing sensor 7 then can be made to occur deviation with actual cigarette diameter, for eliminating above-mentioned deviation, described shell 5 in the online circumference detecting device that the utility model embodiment provides arranges air-breather 11, described air-breather 11 is connected with described toroidal cavity, so that the wind in the external world enters in described sense channel 12 by described air-breather 11, finally be expelled in air from guide piece 9.Enter described sense channel 12 apoplexy and cigarette can be held up and cigarette is got along well the contact internal walls of described sense channel 12, and the dust in described sense channel 12 can be blown away, reach the object of automatic dust removing.Preferably, described air-breather 11 adopts L-type gas joint, and the exclusive bend of L-type gas joint can change the closure of external equipment, to save installing space.
The online circumference detecting device that the utility model embodiment provides is after using for a long time, junction between described shell 5 and described guide piece 9 may enter dust, and then dust can enter toroidal cavity, the described laser instrument 6 in toroidal cavity and described imageing sensor 7 can affect the accuracy of detection of bar-shaped finished product 14 because of entering of dust.For this reason, the online circumference detecting device that the utility model embodiment provides is provided with seal 8 between described shell 5 and described guide piece 9, and described seal 8 can prevent the impurity such as extraneous dust or water from entering the inside of toroidal cavity.
The online circumference detecting device that the utility model embodiment provides is provided with pad 3 between described installing plate 2 and described element board 4.In industrial processes, due to the change of ambient temperature or the continuous working of the long period of equipment, the temperature of online circumference detecting device also can change, thus can relative deformation be there is in described installing plate 2 and described element board 4, the position of described laser instrument 6 and described imageing sensor 7 can change, and then affects the accuracy of detection of online circumference detecting device.Described pad 3 can prevent described installing plate 2 and described element board 4 from when ambient temperature changes, relative movement occurring, the final accuracy of detection ensureing online circumference detecting device.
The circumferential length data that the online test method that following table 1 provides for off-line checking method and the utility model embodiment detects cigarette, the unit mm of circumferential length.
Table 1: the circumferential length that cigarette detects.
| First group | Second group | 3rd group | |
| Offline inspection method | 24.128 | 24.175 | 24.135 |
| On_line detection method | 24.125 | 24.179 | 24.130 |
The online test method provided by contrast off-line checking method and the utility model embodiment is detected to cigarette the circumferential length data obtained and can find out, the data detected by online circumference detecting device that the utility model embodiment provides differ between 0.005mm with the data detected by off-line checking method, and the circumferential length standard of cigarette is 24.2 ± 0.18mm, illustrate that the online circumference detecting device that the utility model embodiment provides has very high accuracy of detection.
Although describe the utility model in the mode of specific embodiment, but to those skilled in the art, when not departing from the spirit and scope of the present utility model that appended claims limits, can carry out variations and modifications to the utility model, these changes and amendment are included in scope of the present utility model equally.
Claims (8)
1. an online circumference detecting device, it is characterized in that, described online circumference detecting device comprises locating device (1), shell (5), installing plate (2), guide piece (9) and sense channel (12), wherein
The upper relative both sides of described shell (5) arrange described installing plate (2) respectively and are embedded in the described guide piece (9) on described shell (5), and described installing plate (2) is not connected with described guide piece (9);
Described installing plate (2) is inlayed locating device (1), and described locating device (1) corresponds to described guide piece (9);
Described sense channel (12) runs through described locating device (1), installing plate (2), described shell (5) and described guide piece (9);
Described locating device (1), described installing plate (2), described shell (5) and described guide piece (9) form toroidal cavity jointly;
Be provided with laser via (13) between described locating device (1) and described guide piece (9), and described laser via (13) is communicated with described toroidal cavity;
Laser instrument (6) and imageing sensor (7) is provided with in described toroidal cavity, described laser instrument (6) and described imageing sensor (7) are positioned at the two ends of described laser via (13), and the axes normal of the axis of described laser via (13) and described sense channel (12) and crossing;
Described installing plate (2) is provided with element board (4), described laser instrument (6) and described imageing sensor (7) are all fixed on described element board (4).
2. online circumference detecting device according to claim 1, it is characterized in that, described laser instrument (6) and described imageing sensor (7) have three groups, and laser instrument (6) described in three groups and described imageing sensor (7) are installed on described element board (4).
3. online circumference detecting device according to claim 1, is characterized in that, described shell (5) is provided with air-breather (11), and described air-breather (11) is connected with described toroidal cavity.
4. online circumference detecting device according to claim 3, is characterized in that, described air-breather (11) is L-type gas joint, and described L-type gas joint is connected with described toroidal cavity.
5. online circumference detecting device according to claim 1 and 2, is characterized in that, described laser instrument (6) is semiconductor laser, and described semiconductor laser is arranged on described element board (4).
6. online circumference detecting device according to claim 1 and 2, is characterized in that, described imageing sensor (7) is ccd sensor, and described ccd sensor is arranged on described element board (4).
7. online circumference detecting device according to claim 1, is characterized in that, is provided with seal (8) between described guide piece (9) and described shell (5).
8. online circumference detecting device according to claim 1, is characterized in that, is provided with pad (3) between described installing plate (2) and described element board (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230406.9U CN204555922U (en) | 2015-04-16 | 2015-04-16 | Online circumference detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230406.9U CN204555922U (en) | 2015-04-16 | 2015-04-16 | Online circumference detecting device |
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| CN204555922U true CN204555922U (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796321A (en) * | 2017-12-04 | 2018-03-13 | 岭南师范学院 | A kind of cylinder bore diameter detection device |
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2015
- 2015-04-16 CN CN201520230406.9U patent/CN204555922U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796321A (en) * | 2017-12-04 | 2018-03-13 | 岭南师范学院 | A kind of cylinder bore diameter detection device |
| CN107796321B (en) * | 2017-12-04 | 2024-04-19 | 岭南师范学院 | Cylinder inner diameter detection equipment |
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