CN202422258U

CN202422258U - Double-face online detection device for coins

Info

Publication number: CN202422258U
Application number: CN2012200057260U
Authority: CN
Inventors: 王�华; 吴时欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-09
Filing date: 2012-01-09
Publication date: 2012-09-05
Anticipated expiration: 2022-01-09

Abstract

The utility model discloses a double-face online detection device for coins, which comprises a bearing plate for conveying the coins, two groups of lighting imaging assemblies and a camera, wherein the two groups of lighting imaging assemblies are respectively distributed in a vertically symmetrical mode along the coins at the current positions on the bearing plate, the camera is used for collecting images of double faces of the coins, and the images of double faces of the coins are formed by the two groups of lighting imaging assemblies. The lighting imaging assemblies include light-emitting diode (LED) light source arrays arranged along the same horizontal planes, diffusing panels horizontally arranged between the LED light source arrays and the coins and used for evenly distributing light and light splitting lenses obliquely arranged between the diffusing panels and the coins and capable of enabling light to irradiate the surfaces of the coins and reflecting images of the upper surfaces or the lower surfaces of corresponding coins to the camera. The double-face online detection device for the coins utilizes LED lights sources to irradiate the upper surfaces and the lower surfaces of the coins at short range, so that the brightness is high, the imaging effect is good, the brightness is improved by over two times than that of the traditional technique, and the detection accuracy is improved. Additionally, the double-face online detection device for the coins is compact, small and exquisite in structure and is more practical than a detecting device in the traditional technique.

Description

Coin two-sided on-line measuring device

Technical field

the utility model relates to a kind of two-sided device that detects that can realize online to coin.

Background technology

In prior art; The device of realizing Coin two-sided online detection comprises the reflective mirror that becomes the 45 setting respectively with the upper and lower surface tilt of coin, be arranged at the source of parallel light on opposite and be arranged at the camera at source of parallel light rear; Illuminate the coin surface through source of parallel light through reflective mirror; Picture in that the coin surface is become reflexes to camera, and such structure makes that the distance between camera and the coin imaging is far away, and the volume of whole device is bigger.

The utility model content

The purpose of the utility model provide a kind of compact conformation, imaging effect good can be to the Coin two-sided device that carries out online detection simultaneously.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

a kind of Coin two-sided on-line measuring device; Comprise being used to transmit the loading plate of coin, two groups of illumination image-forming assemblies that are symmetrically distributed up and down along the coin of current location on the described loading plate respectively, being used to gather the camera of two groups of described illumination image-forming assemblies that described illumination image-forming assembly comprises the led light source array arranged along same surface level, be horizontally placed on the diffusing panel that is used for even lighting between described led light source array and the coin, be obliquely installed in can impinge upon the coin surface and corresponding coin upper surface or lower surface imaging are reflexed to described magazine beam split eyeglass by printing opacity between described diffusing panel and the coin to Coin two-sided imaging.

preferably, the tilt angle ranges between described beam split eyeglass and the loading plate is 30 °-65 °.

preferably, described illumination image-forming assembly is arranged on the retainer.

preferably, the back side of described led light source array all is provided with heat radiator and radiator fan.

The beneficial effect of the utility model is: the led light source irradiation at short distance is at the upper and lower surfaces of coin, and brightness is high, imaging effect is good, and the relative conventional art of brightness has improved more than the twice, has also just improved accuracy of detection; Compact conformation, small and exquisite, the pick-up unit in conventional art is more practical.

Description of drawings

Accompanying drawing 1 is the structural representation of the Coin two-sided on-line measuring device of the utility model;

The design sketch that camera collected when accompanying drawing 2 detected one piece of half a buck for the Coin two-sided on-line measuring device that adopts the utility model.

In accompanying drawing: 1, coin; 2, loading plate; 3, camera; 4, led light source array; 5, diffusing panel; 6, beam split eyeglass; 7, retainer; 8, heat radiator; 9, radiator fan.

Embodiment

Below in conjunction with embodiment shown in the drawings the utility model is done following detailed description the in detail:

are shown in accompanying drawing 1; The Coin two-sided on-line measuring device of the utility model comprises and is used to transmit the loading plate 2 of coin 1, two groups of illumination image-forming assemblies that are symmetrically distributed up and down along the coin 1 of current location on the loading plate 2 respectively, is used to gather the cameras 3 of two groups of illumination image-forming assemblies to coin 1 two-sided imaging; Camera 3 is installed on the side of loading plate 2 transmission directions; Each image-forming assembly that throws light on comprises the led light source array 4 arranged along same surface level, be horizontally placed on the diffusing panel that is used for even lighting 5 between led light source array 4 and the coin 1, be obliquely installed the beam split eyeglass 6 between diffusing panel 5 and coin 1; This beam split eyeglass 6 can realize that printing opacity is radiated at coin 1 surface and can coin 1 upper surface of correspondence or lower surface imaging is reflexed to camera 3 and gathered; Tilt angle ranges between beam split eyeglass 6 and the loading plate 2 is 30 °-65 °; Certain most preferred angle is 45 °; Though the imaging that obtains on other angles distortion can not influence the face amount or the kind that identify coin 1, perhaps can proofread and correct imaging according to the angle that is provided with; Upper and lower two groups of illumination image-forming assemblies are installed in respectively on the retainer 7 of loading plate 2 tops and below, and the back side of led light source array 4 all is provided with heat radiator 8 and radiator fan 9.Form images for ease of coin 1 lower surface; Loading plate 2 is made for transparent material; This moment, corresponding camera 3 was selected area array cameras; Or on the direction of transfer of loading plate 2 upper edges that nontransparent material is made, offer the slit of length greater than coin 1 diameter, wide about 2mm perpendicular to coin 1, the camera 3 of corresponding this moment adopts line-scan digital camera.

Shown in accompanying drawing 2, it is good to adopt this pick-up unit to detect coin 1 imaging effect , has also just improved accuracy of detection; Compact conformation, small and exquisite, the pick-up unit in conventional art is more practical.

the foregoing description is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.

Claims

1. Coin two-sided on-line measuring device; It is characterized in that: comprise being used to transmit the loading plate of coin, two groups of illumination image-forming assemblies that are symmetrically distributed up and down along the coin of current location on the described loading plate respectively, being used to gather the camera of two groups of described illumination image-forming assemblies that described illumination image-forming assembly comprises the led light source array arranged along same surface level, be horizontally placed on the diffusing panel that is used for even lighting between described led light source array and the coin, be obliquely installed in can impinge upon the coin surface and corresponding coin upper surface or lower surface imaging are reflexed to described magazine beam split eyeglass by printing opacity between described diffusing panel and the coin Coin two-sided imaging.

2. Coin two-sided on-line measuring device according to claim 1 is characterized in that: the tilt angle ranges between described beam split eyeglass and the loading plate is 30 °-65 °.

3. Coin two-sided on-line measuring device according to claim 1 is characterized in that: described illumination image-forming assembly is arranged on the retainer.

4. Coin two-sided on-line measuring device according to claim 1 is characterized in that: the back side of described led light source array all is provided with heat radiator and radiator fan.