CN104156688B - Bar code laser scanner - Google Patents
Bar code laser scanner Download PDFInfo
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- CN104156688B CN104156688B CN201410450538.2A CN201410450538A CN104156688B CN 104156688 B CN104156688 B CN 104156688B CN 201410450538 A CN201410450538 A CN 201410450538A CN 104156688 B CN104156688 B CN 104156688B
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- laser
- concave mirror
- mirror
- scanner
- bar code
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Abstract
The invention discloses a bar code laser scanner. The bar code laser scanner comprises a plane mirror support, a plurality of plane mirrors are arranged on the side wall of the plane mirror support, a non-closed space is defined by all the plane mirrors, the mirror surface of each plane mirror faces the inner side of the defined space, a mirror surface rotating device is arranged on the inner side of the space, a laser reflection plate and a concave mirror are arranged above the plane mirror support, through holes are formed in the corresponding positions of the laser reflection plate and the concave mirror, a screw penetrates through the through hole of the laser reflection plate and the through hole of the concave mirror in sequence, then the two ends of the screw are screwed through nuts, an opening is formed in the middle of the concave mirror, and light beams emitted by a laser transmitter are reflected by a reflection mirror and then are irradiated to the mirror surface of a rotating body via the opening of the concave mirror. The bar code laser scanner is high in precision and can emit multiple scanning light beams in different directions, bar codes can be recognized by the scanner when users make bar codes of products pass through the scanner in any direction, and operation is easy and convenient.
Description
Technical field
The present invention relates to a kind of barcode laser scanner.
Background technology
Industry or fast consumables industry, for the ease of identification Item Information and keyholed back plate product stream, bar code
It is widely used, the device for being equally scanned to bar code and being recognized -- bar code scanner is also widely made
With.Bar code scanner is general by lasing light emitter, and the circuit of mirror tilt device, Optical Receivers and signal transacting is constituted, had
Lasing light emitter launches laser beam, and forming scanning light beam by mirror tilt device is radiated on bar code, is reflected through bar code
Light beam is mapped on Optical Receivers, then the circuit of signal transacting converted optical signal into be sent to after electric signal and carry out in computer
Treatment.Traditional bar code scanner has the following disadvantages：
1st, the level crossing in traditional scanner swings back and forth by the effect of the adhesive of magnet, and lasing light emitter is launched
Laser beam forms linear scanning light beam, and the frequency that level crossing swings back and forth can directly affect the scanning of the bar code scanner frequently
Rate, scan frequency is more more efficient, and bar code scanner launches the scanning light beam brightness to be formed also can be better, can also avoid
Scanning light beam flashes, but the structure that level crossing in traditional laser scanner swings back and forth by magnet attraction, and frequency is relatively low,
The scan frequency of scanner is difficult to be effectively ensured；
2nd, the distance between Laser emission plate and concave mirror of traditional bar code scanner are fixed, in production process
In, due to the restriction of technique, the distance between Laser emission plate and concave mirror are difficult to ensure that in default evaluation, generally about default
Evaluation fluctuates up and down, there is an error amount, causes the precision of bar code scanner to be difficult to ensure that, it is difficult to meet to required precision ratio
Client higher；
3rd, traditional bar code scanner can only send single beam scanning light of single direction, only when the bar code on product
Along this single direction scanning light irradiation when, could be accurately identified by bar code scanner, when the bar code on product not
According to the scanned light irradiation in this direction, bar code scanner has no idea to accurately identify bar code information, is using upper tool
There is limitation.User is when using this bar code scanner, it is necessary to adjust the irradiation position of product bar code and scanning light, operation
Seem inconvenience.
The content of the invention
The present invention provides a kind of simple to operate, high precision, scanning ray good barcode laser scanner.
Barcode laser scanner of the present invention, including plane mirror support, the side wall of plane mirror support are provided with multiple
Level crossing, is formed an angle in described multiple mirrors between any two level crossings, and a non-envelope is surrounded between all level crossings
The space closed, and each level crossing the inner side in space that is surrounded both facing to it of minute surface, minute surface rotation is provided with the inside of space
Rotary device, the minute surface whirligig includes rotating body and electric rotating machine, and the side wall of rotating body is minute surface, rotating body
Bottom be connected with electric rotating machine by rotating shaft, one end of rotating shaft is engaged by hook with the groove of rotating body bottom, another
End is connected with the drive end of electric rotating machine, laser reflection plate and concave mirror is provided with above plane mirror support, in Laser emission
One end of plate sets the generating laser of oriented horizontal direction outgoing laser beam, and the other end is provided with inclined speculum, described
Laser beam is reflected towards concave mirror by speculum, and Laser emission plate and concave mirror are each provided with through hole in correspondence position, and screw rod is successively
Two ends are respectively by nut, the screw rod between Laser emission plate and concave mirror after the through hole of Laser emission plate and concave mirror
Periphery is provided with the spring in compressive state, and Laser emission plate and concave mirror are pressed on spring and spiral shell by the two ends of spring respectively
Between mother, concave mirror middle setting has an opening, and the light beam of laser transmitter projects is from after speculum reflection through the opening of concave mirror
It is irradiated on the minute surface of rotating body.
Barcode laser scanner of the invention, Laser emission plate is provided with generating laser and inclined speculum, inclines
The laser beam of laser transmitter projects is reflected towards concave mirror by oblique speculum, by screwing the spiral shell near Laser emission plate side
Mother, can adjust distance between Laser emission plate and concave mirror.When between Laser emission plate and concave mirror actual range less than default
During evaluation, can screw on nut laterally, have active force laterally to Laser emission plate in compressive state spring, promote laser
Expelling plate is moved away from concave mirror, increases distance between Laser emission plate and concave mirror, make Laser emission plate and concave mirror it
Between actual range can meet the requirement of default evaluation；When actual range is more than default evaluation between Laser emission plate and concave mirror
When, to the further tightening nut in inner side Laser emission plate can be promoted to be moved near concave mirror by the active force of nut, reduce and swash
Distance between light expelling plate and concave mirror, to meet actually used demand, in addition, electric rotating machine drives rotating body rotation
When, rotation is followed in rotating body side wall mirror face, and light beam is projected from different perspectives, and when rotating body is in the different anglecs of rotation
When spending, the light beam for reflecting away can be got on level crossings different on plane mirror support, because of the angle between level crossing two-by-two not
Equally, the scanning light beam of different directions can be finally projected from scanner, is rotated by the high speed of electric rotating machine, be greatly improved and sweep
Retouch the frequency of light beam, and bar code scanner to launch the scanning light beam brightness to be formed also more preferable.Bar code of the invention
Laser scanner, can adjust the distance between Laser emission plate and concave mirror, further improve the precision of bar code scanner, can
Meet the client higher to required precision, drive rotating body to rotate at a high speed additionally by electric rotating machine, by rotating body
Side wall mirror face changes the angle that light beam is reflected away, then reflects away to form scanning light through the oblique level crossing of plane mirror support updip
Beam, substantially increases scanner scan frequency；Other minute surface rotary device structure is simple, and the brightness of the scanning light beam of formation is also more
It is good；By being provided with multiple level crossings angled between any two on support, light beam is projected from different directions, so that
Form the scanning light beam of a plurality of different directions, user by the bar code on product from any direction on scanner by can quilt
Scanner is recognized, simple to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation Fig. 1 of barcode laser scanner.
Fig. 2 is a kind of structural representation Fig. 2 of barcode laser scanner.
Specific embodiment
A kind of barcode laser scanner as shown in Figure 1, 2, is provided with multiple level crossings 2 on plane mirror support 1, described
Multiple mirrors in form an angle between any two level crossings, a space for non-close is surrounded between all level crossings, and
The inner side in the space that the minute surface of each level crossing is surrounded both facing to it, is provided with minute surface whirligig on the inside of space, described
Minute surface whirligig includes rotating body 3 and electric rotating machine 4, and the side wall of rotating body is minute surface, and the bottom of rotating body leads to
Cross rotating shaft to be connected with electric rotating machine, one end of rotating shaft engage by hook with the groove position of rotating body bottom, the other end and rotate
The drive end connection of motor, is provided with laser reflection plate and concave mirror above plane mirror support.Electric rotating machine drives rotation originally
When body rotates, rotation is followed in rotating body side wall mirror face, and light beam is projected from different perspectives, and when rotating body is different
During the anglec of rotation, the light beam for reflecting away can be got on level crossings different on plane mirror support, because between level crossing two-by-two
Angle is different, and the scanning light beam of different directions can be finally projected from scanner.In one end of Laser emission plate 5, oriented water is set
Square to outgoing laser beam generating laser, the other end is provided with inclined speculum, and the speculum reflects laser beam
To concave mirror 6, Laser emission plate and concave mirror are each provided with through hole in correspondence position, and screw rod sequentially passes through Laser emission plate and recessed
Two ends are respectively by nut after the through hole of face mirror, and the screw rod periphery between Laser emission plate and concave mirror is provided with compression
Be pressed between spring and nut for Laser emission plate and concave mirror respectively by the spring of state, the two ends of spring.The laser scanning
The Laser emission plate adjustable structure of device, Laser emission plate is provided with generating laser and inclined speculum, inclined speculum
The laser beam of laser transmitter projects is reflected towards concave mirror, by screwing the nut near Laser emission plate side, be can adjust
Distance between Laser emission plate and concave mirror.
Laser emission plate and concave mirror are provided with multipair through hole in correspondence position, and the logarithm of through hole can be 2 pairs, 3 pairs, or even
It is more right, screw rod has all been extended through on every a pair of through holes, Laser emission plate and concave mirror are connected, Laser emission plate can be strengthened
Connection and concave mirror between, the relatively reliable practicality of laser scanner.
Wherein, rotating body can be truncated rectangular pyramids, and minute surface is on each side wall of truncated rectangular pyramids, and electric rotating machine drives truncated rectangular pyramids
During rotation, often rotate a circle, that is, form the scanning light beam of four times, further improve scanner scan frequency.
Wherein the number of level crossing is 6, and the angle of two neighboring level crossing works as rotating body between 150 ° to 170 °
Side wall mirror face is rotated, and light beam is projected from different perspectives, then when being projected through this 6 level crossings respectively, you can formed crisscross
Scanning light beam, when no matter the bar code of article passes through from which direction on scanner, can at least by wherein one scanning
Light beam recognized, substantially increases the convenience of laser scanner operation.
Claims (5)
1. a kind of barcode laser scanner, it is characterised in that：Including plane mirror support, the side wall of plane mirror support is provided with many
Individual level crossing, forms an angle in described multiple mirrors between any two level crossings, surrounded between all level crossings one it is non-
The space of closing, and each level crossing the inner side in space that is surrounded both facing to it of minute surface, minute surface is provided with the inside of space
Whirligig, the minute surface whirligig includes rotating body and electric rotating machine, and the side wall of rotating body is minute surface, and rotation is originally
The bottom of body is connected by rotating shaft with electric rotating machine, and one end of rotating shaft is engaged by hook with the groove position of rotating body bottom, separately
One end is connected with the drive end of electric rotating machine, and laser reflection plate and concave mirror are provided with above plane mirror support, in laser hair
The one end for penetrating plate sets the generating laser of oriented horizontal direction outgoing laser beam, and the other end is provided with inclined speculum, institute
State speculum and laser beam be reflected towards concave mirror, Laser emission plate and concave mirror are each provided with through hole in correspondence position, screw rod according to
The secondary two ends after the through hole of Laser emission plate and concave mirror are respectively by nut, the spiral shell between Laser emission plate and concave mirror
Bar periphery is provided with the spring in compressive state, the two ends of spring respectively by Laser emission plate and concave mirror be pressed on spring with
Between nut, concave mirror middle setting has an opening, and the light beam of laser transmitter projects is from opening through concave mirror after speculum reflection
Mouth is irradiated on the minute surface of rotating body.
2. barcode laser scanner according to claim 1, it is characterised in that：Laser emission plate and concave mirror are in correspondence
Position is provided with multipair through hole.
3. barcode laser scanner according to claim 1, it is characterised in that：Described rotating body is truncated rectangular pyramids.
4. barcode laser scanner according to claim 1, it is characterised in that：The number of the level crossing is 6.
5. barcode laser scanner according to claim 4, it is characterised in that：The model of the angle of two neighboring level crossing
It is trapped among between 150 ° to 170 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450538.2A CN104156688B (en) | 2014-09-05 | 2014-09-05 | Bar code laser scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450538.2A CN104156688B (en) | 2014-09-05 | 2014-09-05 | Bar code laser scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104156688A CN104156688A (en) | 2014-11-19 |
| CN104156688B true CN104156688B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450538.2A Active CN104156688B (en) | 2014-09-05 | 2014-09-05 | Bar code laser scanner |
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| CN (1) | CN104156688B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504359B (en) * | 2015-01-14 | 2017-11-03 | 广州尚臣电子有限公司 | A kind of laser head mechanism of scanner |
| CN106066985A (en) * | 2016-07-11 | 2016-11-02 | 深圳市兴通物联科技有限公司 | Laser bar code scanner hardware circuit |
| CN106066984A (en) * | 2016-07-11 | 2016-11-02 | 深圳市兴通物联科技有限公司 | Laser bar code scan decoder control circuit and barcode scanner |
| CN106056026B (en) * | 2016-07-19 | 2018-09-25 | 广东旭龙物联科技股份有限公司 | A kind of multi-direction bar code scanner of more single photosensitive receiving tubes of LASER Discharge Tube matching |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04302384A (en) * | 1990-12-10 | 1992-10-26 | Ncr Corp | Mode switch for bar-code scanning apparatus |
| CN1209892A (en) * | 1995-12-18 | 1999-03-03 | 计量器具公司 | Holographic laser scanning system, and process and apparatus and methods for designing and constructing same |
| JP2001100140A (en) * | 1999-09-29 | 2001-04-13 | Sony Corp | Beam scanning device and bar code scanner |
| WO2006051579A1 (en) * | 2004-11-09 | 2006-05-18 | Fujitsu Limited | Optical scanning method and apparatus, bar code reading method and apparatus and polygon mirror used for them |
-
2014
- 2014-09-05 CN CN201410450538.2A patent/CN104156688B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04302384A (en) * | 1990-12-10 | 1992-10-26 | Ncr Corp | Mode switch for bar-code scanning apparatus |
| CN1209892A (en) * | 1995-12-18 | 1999-03-03 | 计量器具公司 | Holographic laser scanning system, and process and apparatus and methods for designing and constructing same |
| JP2001100140A (en) * | 1999-09-29 | 2001-04-13 | Sony Corp | Beam scanning device and bar code scanner |
| WO2006051579A1 (en) * | 2004-11-09 | 2006-05-18 | Fujitsu Limited | Optical scanning method and apparatus, bar code reading method and apparatus and polygon mirror used for them |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104156688A (en) | 2014-11-19 |
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Effective date of registration: 20160120 Address after: 4, 1 floor, spray shop, North duck Road, Guangzhou street, Tan Village, Shijing street, Baiyun District, Guangdong, 510430 Applicant after: GUANGZHOU SHANGCHEN ELECTRONIC CO., LTD. Address before: 315601, Ningbo City, Zhejiang province Ninghai County town of The Strip Lake Village Applicant before: Wang Qiyun |
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