CN215642716U

CN215642716U - Double-micro-code single-head reading device

Info

Publication number: CN215642716U
Application number: CN202121132710.1U
Authority: CN
Inventors: 朱登宝; 闫飞; 植亮亮
Original assignee: Suzhou PTC Optical Instrument Co Ltd
Current assignee: Suzhou PTC Optical Instrument Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-01-25
Anticipated expiration: 2031-05-25

Abstract

The invention provides a double-micro-code single-head reading device, which comprises a machine table and an imaging module arranged on the machine table, and is characterized in that: the imaging module comprises a code reader camera and a light splitting component, the imaging module is erected on the table board of the machine table through an adjusting bracket, a lens is mounted at the lower end of the code reader camera, and the lower end of the lens is directly connected with the light splitting component; the light splitting assembly comprises a light shield, a spectroscope, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror, wherein the spectroscope, the first reflecting mirror, the second reflecting mirror and the third reflecting mirror are arranged in the light shield, the top of the light shield is directly communicated and fixed with the lens, light inlet ports are formed in two ends of the lower surface of the light shield, and a first electronic shutter and a second electronic shutter are arranged on the light inlet ports respectively. The reading device accurately reads the close-range double miniature codes by combining the innovations of the optical and machine vision technologies, solves the problem that the two-dimensional codes are small in size and difficult to read, and solves the problem that two code readers are difficult to set by one reading device when the two miniature codes are close to each other, so that the cost is saved.

Description

Double-micro-code single-head reading device

Technical Field

The invention belongs to the field of optical detection, and particularly relates to a double-micro-code single-head reading device.

Background

In the mass production process, a label with identification information is generally required to be attached or engraved on the surface of a product, and then a code scanning gun is used for reading a two-dimensional code, but the code reader mainly aims at a two-dimensional code with a larger size, and if a micro two-dimensional code is encountered, the code reader is difficult to recognize and read; in addition, the two-dimensional codes which are relatively close to each other are arranged on a product, at the moment, one code reader is used for sequentially aligning the position for scanning, the efficiency is low, the requirement of a production line is difficult to achieve, in the prior art, two code readers are arranged on a scanning device side by side for code scanning identification, but the device has obvious defects, the cost is obviously higher than that of one code reader, and due to the limit reasons of the structure and the size of the code reader, the two miniature two-dimensional codes which are relatively close to each other can be scanned simultaneously when the code reader is arranged on the same scanning device, so that the reading of the two miniature two-dimensional codes which are relatively close to each other on the product is difficult and inconvenient.

Disclosure of Invention

In view of the above, the present invention provides a double-micro code single-head reading device, which accurately reads a close-range double-micro code by innovatively combining optical and machine vision technologies, solves the problems that a two-dimensional code is small in size and difficult to read, and two code readers are difficult to set in one reading device when two micro codes are close to each other, saves cost, improves overall recognition efficiency, and completely meets the standards of an automatic production line.

The specific technical scheme is as follows:

the utility model provides a two miniature sign indicating number single-head reading device, includes board and the imaging module group that sets up on it, its characterized in that:

the imaging module comprises a code reader camera and a light splitting component, the imaging module is erected on the table board of the machine table through an adjusting bracket, a lens is mounted at the lower end of the code reader camera, and the lower end of the lens is directly connected with the light splitting component;

the light splitting assembly comprises a light shield, a spectroscope, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror, wherein the spectroscope, the first reflecting mirror, the second reflecting mirror and the third reflecting mirror are arranged in the light shield, the top of the light shield is directly communicated and fixed with the lens, the lens is an amplifying lens, and the multiplying power can reach 3-5 times. Light inlets are formed at two ends of the lower surface of the light shield, and a first electronic shutter and a second electronic shutter are respectively arranged on the light inlets;

the first reflector is located right above the light inlet corresponding to the first electronic shutter, the second reflector and the first reflector are located at the same horizontal height, the second reflector is located right below the spectroscope, the third reflector and the spectroscope are located at the same horizontal height and located right above the light inlet corresponding to the second electronic shutter, the spectroscope is located right below the lens, and the positions of the spectroscope, the first reflector, the second reflector and the third reflector are arranged to form a light advancing path.

Preferably, the machine table surface that corresponds under the lens hood is fixed with the centre gripping tool of material, and the frame of centre gripping tool is scalable.

Preferably, a light source is arranged in the machine table, and light holes are formed in the surface of the machine table at positions right below the light inlets corresponding to the first electronic shutter and the second electronic shutter.

Preferably, adjust the support and include that fixing base and triaxial adjust the seat, the fixing base is fixed on the board surface, and the setting of triaxial regulation seat is on the fixing base, and code reader camera direct mount is in on the triaxial adjusts the seat and can carry out the fine setting motion of level, vertical direction under the ware drives.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a dual-micro-code single-head reading device according to the present application;

FIG. 2 is a schematic view of a position configuration structure of an imaging module;

the system comprises a machine table 10, a code reader camera 20, a lens 21, a fixed seat 22, a three-axis adjusting seat 23, a light splitting assembly 30, a light splitter 31, a light splitter 32, a first reflector 33, a second reflector 34, a third reflector 35, a first electronic shutter 36, a second electronic shutter 37, a light shield 38, a light inlet 40, a product 41, a two-dimensional code on the product 41 and a clamping jig 50.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms of orientation such as directly below and directly above as used in this application mean that the center points of the upper and lower portions are located on the same central axis.

Fig. 1 shows a schematic diagram of an embodiment of the dual micro code single-head reading device of the present invention, which is also a preferred embodiment. The utility model provides a two miniature sign indicating number single-head reading device, includes board 10 and the imaging module group of setting on it, its characterized in that:

the imaging module comprises a code reader camera 20 and a light splitting component 30, the imaging module is erected on the table board of the machine table 10 through an adjusting bracket, a lens 21 is installed at the lower end part of the code reader camera 20, the lens is an amplifying lens, the multiplying power can reach 3-5 times, the micro two-dimensional code which cannot be identified by naked eyes can be amplified, and the lower end of the lens 21 is directly connected with the light splitting component 30; in the present embodiment, the magnification of the lens 21 is preferably 4 times.

Referring to fig. 2, the light splitting assembly 30 includes a light shield 37, a beam splitter 31, a first reflector 32, a second reflector 33, and a third reflector 34, which are disposed in the light shield 37, wherein the top of the light shield 37 is directly connected and fixed with the lens 21, two ends of the lower surface of the light shield 37 are opened with light inlets 38, and the light inlets 38 are respectively disposed with a first electronic shutter 35 and a second electronic shutter 36 for controlling the opening and closing of the light inlets 38.

The first reflector 32 is located right above the light inlet 38 corresponding to the first electronic shutter 35, the second reflector 33 and the first reflector 32 are located at the same horizontal height, the second reflector 33 is located right below the beam splitter 31, the third reflector 34 and the beam splitter 31 are located at the same horizontal height, and are located right above the light inlet 38 corresponding to the second electronic shutter 36, and the beam splitter 31 is located right below the lens 21. When the two-dimensional code images are acquired, the first electronic shutter 35 and the second electronic shutter 36 are alternately opened and closed in turn, when the first electronic shutter 35 is opened, one of the two-dimensional code images of the product is transmitted to the second reflecting mirror 33 through the first reflecting mirror 32 through the light inlet 38, then transmitted to the spectroscope 31 through the second reflecting mirror 33 and then enters the lens 21 for amplification, and is imaged on the code reader camera 20, when the first electronic shutter 35 is closed, the second electronic shutter 36 is opened, and the other two-dimensional code image on the product is directly transmitted to the spectroscope 31 through the third reflecting mirror 33 through the light inlet 38 and then enters the lens 21 for amplification, and is imaged on the code reader camera 20. The distance between the light inlets 38 corresponding to the first electronic shutter 35 and the second electronic shutter 36 can be selectively adjusted according to the distance of the two-dimensional code on the detected identification product, and the distance number is not specifically limited herein, and it is claimed that other embodiments having the same or similar structure or characteristics as those of the present application fall within the scope of those skilled in the art. The arrangement of the light splitting component reflects the flexibility of the reading device and solves the problem of the limitation of the inner and outer spaces of the scanning code reading device in the prior art. Optical elements such as the beam splitter 31, the first reflecting mirror 32, the second reflecting mirror 33, and the third reflecting mirror 34 are fixed at corresponding positions in the light shield 37 through existing optical fixing members, which is not described in detail and does not affect understanding.

More specific implementation modes of the invention are specifically developed as follows:

preferably, the fixed surface of the machine table 10 corresponding to the position under the light shield 37 is fixedly provided with a clamping jig 50 for the material, the frame of the clamping jig 50 is telescopic, the tested product 40 can be placed and taken conveniently, and the clamping jig has more adaptability to the size specification of the product.

Preferably, a light source is disposed in the machine 10, light holes are formed in the surface of the machine 10 at positions right below the light inlet 38 corresponding to the first electronic shutter 35 and the second electronic shutter 36, the light holes are simultaneously located within the frame range of the clamping jig 50, the clamping jig 50 on the machine 10 for placing the product 40 is fixed, and light is irradiated from the lower side of the product 40 through the light holes.

Preferably, adjust the support and include that fixing base 22 and triaxial adjust seat 23, fixing base 22 fixes on board 10 surface, and the setting of seat 23 is adjusted on fixing base 22 to the triaxial, and the seat 23 is adjusted for the regulation seat that can finely tune in X, Y, Z three directions to the triaxial, and code reader camera 20 direct mount is adjusted on seat 23 and can carry out the fine setting motion of level, vertical direction under its drive at the triaxial. The working principle of the three-axis adjusting seat is a mature technology, and the details are not repeated and can be understood.

When the double-micro-code single-head reading device of the embodiment is used for identifying and reading information of a product, firstly, the product 40 is fixed on the clamping fixture 50, the product 40 to be measured is displayed in the center of the visual field of the code reader camera 20 by finely adjusting the three-axis adjusting seat 23, the light source irradiates the product 40, the first electronic shutter 35 and the second electronic shutter 36 are opened and closed alternately, so that a two-dimensional code of the product below the light inlet 38 corresponding to the first electronic shutter 35 and a two-dimensional code of the product below the light inlet 38 corresponding to the second electronic shutter 36 enter the lens 21 and the code reader camera 20 through the reflecting mirror and the spectroscope respectively in turn, thereby imaging and code reading are carried out, and then, the image is processed and decoded by software in the reading device, and characters of the code are stored and output.

Micro two-dimensional code on the discernment product that can be accurate quick in the two miniature code single-head reading device of this embodiment, the problem of the less difficult reading of two-dimensional code size has been solved, in addition, combine through the innovation of optics and machine vision technique, beam splitting subassembly promptly, the combination of code reader camera and magnifying lens, make only need set up a code reader in reading device can be simultaneously accurate two miniature codes on the reading product, more can have the nearer condition of two miniature two-dimensional code distances of discernment that aim at, it uses two code readers to be difficult for placing when the miniature code distance is nearer to have overcome, the problem of discernment, the volume of reading equipment has been reduced, and the cost is also saved, satisfy the multiple demand of scanning the sign indicating number discernment to the product in present stage completely.

Any reference in this specification to "the present embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. This schematic representation in various places throughout this specification does not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.

Claims

1. The utility model provides a two miniature sign indicating number single-head reading device, includes board and the imaging module group that sets up on it, its characterized in that:

the light splitting assembly comprises a light shield, a light splitter, a first reflecting mirror, a second reflecting mirror and a third reflecting mirror, wherein the light splitter, the first reflecting mirror, the second reflecting mirror and the third reflecting mirror are arranged in the light shield;

the first reflector is positioned right above the light inlet corresponding to the first electronic shutter, the second reflector and the first reflector are positioned at the same horizontal height, the second reflector is positioned right below the spectroscope, the third reflector and the spectroscope are positioned at the same horizontal height and positioned right above the light inlet corresponding to the second electronic shutter, and the spectroscope is positioned right below the lens.

2. The apparatus according to claim 1, wherein a material holding jig is fixedly mounted on a surface of the machine platform corresponding to a position directly below the light shield, and a frame of the material holding jig is retractable.

3. The dual micro code single head reading device according to claim 1, wherein the machine platform is provided with a light source for upward irradiation, and the surface of the machine platform is provided with a light hole at a position right below the light inlet corresponding to the first electronic shutter and the second electronic shutter.

4. The single-head reading device according to claim 1, wherein the adjusting bracket comprises a fixing base and a three-axis adjusting base, the fixing base is fixed on the surface of the machine platform, the three-axis adjusting base is disposed on the fixing base, and the code reader camera is directly mounted on the three-axis adjusting base and can perform fine adjustment movements in horizontal and vertical directions under the driving of the code reader camera.