CN103529483A

CN103529483A - Detecting device for movable object

Info

Publication number: CN103529483A
Application number: CN201210223125.1A
Authority: CN
Inventors: 西堀勉; 驹泽雄一
Original assignee: STAR SEIKI (XIANGYANG) Co Ltd
Current assignee: STAR SEIKI (XIANGYANG) Co Ltd
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2014-01-22

Abstract

A detecting device for a movable object is used for detecting objects which are taken out of and falls from a forming machine and other movable objects. One end of a cylinder body is provided with an opening. A cover part is arranged at a light inlet of the cylinder body. The cover part is provided with a light entering window part. The bottom surface of the cylinder body is provided with one or more optical sensors which can sense photovoltaic current that is generated by electric quantity of external light. A light receiving surface of each optical sensor is parallel with the inner bottom surface of the cylinder body. A photoinduction space part is formed in the cylinder body. An amplifier, a signal comparator, a signal output device and a controller of a detecting loop of each optical sensor are connected in series. The signal comparator is connected with a level adjustor in series. The detecting device of the invention has a simple structure and can greatly reduce cost. Furthermore a detected object can be a random member. Additionally, according to the number and configuration state of the optical sensors in the cylinder body, the movement direction, movement speed and size of the object can be detected. Strong detecting function is obtained. Simultaneously the optical sensors can be effectively protected and maintenance is facilitated.

Description

The pick-up unit of mobile object

Technical field

The present invention relates to object Automatic Measurement Technique field, specifically a kind of object falling from forming machine taking-up by light sensors and the device of other mobile object.

Background technology

Non-contact object pick-up unit in the past detects with light mostly.For example, TOHKEMY 2003-75547 communique.As shown in Figure 7, be the schematic diagram that the direction that falls from product is seen, the optical sensor 2 by infiltration type can detect from the fallen object M of knockout machine 1.The optical sensor 2 of infiltration type is comprised of illuminator 3 and receptacle 4, and when having target object M that light 5 is blocked, the output of receiver 4 just changes.This pick-up unit, illuminator 3 and receptacle 4 are contained in respectively and detect thing by the both sides in path, complex structure, and expensive, the optical sensor 2 of single infiltration type can only enough detect having or not that object M passes through, and direction or the height of the optical sensor 2 inspected object motions of a plurality of infiltration types also can be set, and also can detect the movement velocity of object M and the size of object M, but exist cost high, and the problems such as complex structure.As shown in Figure 8, be the schematic diagram that the direction that falls from product is seen equally, the optical sensor 6 by reflection-type can detect object M.The optical sensor 6 of reflection-type is comprised of illuminator 7 and receiver 8, and it is upper that the light that illuminator 7 sends is mapped to target object M, and target object M returns light reflection, and in reflected light, a part sends back to receiver 8, can detect target object M.Reflection type optical sensor 6 is contained in a side of object M, to possess equally the Xin Chuan send Give receptacle 8 of illuminator 7, single reflection type optical sensor 6 can only enough detect having or not that object M passes through, direction or the height of a plurality of reflection type optical sensor 6 inspected object motions also can be set, also can detect the movement velocity of object M and the size of object M, also exist cost high, and the problems such as complex structure.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present invention is to provide a kind of pick-up unit of mobile object, UV light is entered from the narrow entrance of cylindrical shell, and the electric signal of the variation of exporting by optical sensor in cylinder carrys out inspected object, to realize the object reducing costs.

For achieving the above object, one end of cylindrical shell of the present invention is provided with opening, cap material is arranged on the light entrance portion of cylindrical shell, cap material is provided with light and enters window portion, the bottom faces of cylindrical shell is equipped with optical sensor, and optical sensor is the sensor that can perception outer light light quantity produces photovoltaic electric current, and optical sensor is at least one or more, the sensitive surface of optical sensor is parallel with the inner bottom surface of cylindrical shell, and the inside of cylindrical shell forms photoinduction spatial portion; The detection loop amplifier of optical sensor, signal comparator, signal output device, controller are serially connected, and signal comparator is connected in series with level regulator.

The outer light of level that the present invention determines enters from the narrow entrance of cylindrical shell, in airtight cylindrical shell, concentrate, in cylindrical shell, certain depth is provided with optical sensor, when having target object to obstruct the light, optical sensor is converted into curent change by the variation of light, be light signal power transformation signal, optical sensor detects target object by the electric signal of exporting change.

The present invention is compared with prior art, simple in structure, can significantly subdue cost, and detected object can be arbitrarily, and do not limit from forming machine and take out fallen object, as long as can block the outer light of determined level, such as the grain of rice, people and other various goods etc.; In addition, according to the quantity of the optical sensor in cylindrical shell and configuration, the size of moving direction, translational speed and object that can inspected object, measuring ability is powerful, can effectively protect optical sensor simultaneously, is beneficial to maintenance.

Accompanying drawing explanation

Fig. 1 is the three-dimensional sketch of article detection device 10 of the present invention.

Fig. 2 is the skiagraph of Fig. 1.

Fig. 3 is the connection layout in the detection loop 21 of optical sensor 13.

Fig. 4 is the comparative descriptions figure that detects the threshold level 28 of level 27 and signal comparator 23.

Fig. 5 is the sectional schematic diagram at knockout machine 1 periphery installation material body detection device 10.

Fig. 6 is that the present invention configures arbitrarily the planimetric map of a plurality of object detection devices 10 equably.

The side surface direction of Fig. 7 for falling from product, the scheme of installation of the photoelectric sensor 2 of original infiltration type.

The side surface direction of Fig. 8 for falling from product, the scheme of installation of the photoelectric sensor 6 of original reflection-type.

The explanation of figure number:

1 ... knockout machine, 2 ... the optical sensor of infiltration type, 3... illuminator, 4... receptacle, 5... light, 6... the optical sensor of reflection-type, 7... illuminator, 8... receiver, 10 ... article detection device, 11... cylindrical shell, the inner bottom surface of 11A... cylindrical shell 11, 12... cap material, 13... optical sensor, the sensitive surface of 13A.....

optical sensor

13, 14.... light entrance portion, 15... photoinduction spatial portion, 16... outer light, 17... light enters window portion, 19... light enters window portion inwall, 20... cable, 21... detect loop, 22... amplifier, 23... signal comparator, 24... level regulator, 25 ... ON, OFF signal output device, 26.... controller, 27... detect level, 28... threshold level, 30... fitting.

Embodiment

As shown in Figure 1 and Figure 2, one end of the cylindrical shell 11 of article detection device 10 is provided with opening, cap material 12 is arranged on the light entrance portion 14 of cylindrical shell 11, the central authorities of cap material 12 are provided with light and enter window portion 17, the bottom faces of cylindrical shell 11 is equipped with optical sensor 13, the inside of cylindrical shell 11 forms photoinduction spatial portion 15, and the sensitive surface 13A of optical sensor 13 is parallel with the inner bottom surface 11A of cylindrical shell 11.Optical sensor 13 changes resistance with the light quantity of outer light 16, optical sensor 13 is the sensor that can perception outer light light quantity produces photovoltaic electric current, cable 20 provides electric signal for the detecting circuit of optical sensor 13, outer light 16 enters window portion 17 through light and enters in photoinduction spatial portion 15, front the concentrating of optical sensor 13, is detected.

The present invention, by cylindrical shell 11 is set, detects object M and shading scope according to the outer light 16 of optical sensor 13.With the covering that there is no cylindrical shell 11, optical sensor 13 is difficult to detect the situation difference of object M by the variation of outer light 16, can effectively identify Shading level and the illumination levels of outer light 16, detects object M.The special faint situation of light 16 outside, limits the detection space of optical sensors 13 by the photoinduction spatial portion 15 of cylindrical shell 11, the spatial portion of photoinduction simultaneously 15 can limit outer light 16 and overflow, and outer light 16 detects object front the concentrating of optical sensor 13.

As shown in Figure 3, Figure 4, amplifier 22, signal comparator 23, signal output device 25, controller 26 that optical sensor 13 detects loop 21 are serially connected, and signal comparator 23 is connected in series with level regulator 24.When object passes through article detection device, because light is covered by object, the threshold level 28 of signal comparator 23 is lower than detecting level 27.ON, 25 pairs of controllers of OFF signal output device, 26 output ON, OFF signal, optical sensor 13 is according to the control signal induction testee of controller 26.

Level regulator 24 is to regulate threshold levels 28 to desired level according to the detection level 27 of optical sensor 13, measures in advance the light quantity level of the outer light of article detection device, by regulate determine threshold level 28, make optical sensor 13 can detect testee.

Shown in Fig. 2, the diameter that light enters window portion 17 is D, the thickness of cap material 12 is T, the degree of depth that optical sensor 13 is arranged in the photoinduction spatial portion 15 of cylindrical shell 11 is H, when the internal diameter of cylindrical shell 11 is W, these numerical value of combination in any, in conjunction with the sensitivity of optical sensor 13, can mechanically regulate the threshold level 28 of the optical sensor 13 of setting article detection device 10.

As shown in Figure 5, at knockout machine product, fall place, by fitting 30 fixed object pick-up units 10, keep entering the state of window portion in the face of the light source of article detection device 10.When the object falling blocks outer light, enter window portion while entering light portion, the light quantity that optical sensor 13 detects outer light changes, the signal of exporting change, and detection loop just can detect passing through of object M.Sequence number 11 is cylindrical shell, and sequence number 11A is inner bottom surface, and sequence number 12 is cap material, and sequence number 13A is sensitive surface, and sequence number 14 is light entrance portion, and sequence number 15 is photoinduction spatial portion, and sequence number 19 enters window portion inwall for light, and sequence number 20 is cable.

As shown in Figure 6, evenly disposing a plurality of object detection device 10(can stereoscopic configurations), can detect the shape of object and direction of motion, movement velocity.

Claims

1. the pick-up unit of a mobile object, it is characterized in that: one end of cylindrical shell (11) is provided with opening, cap material (12) is arranged on the light entrance portion (14) of cylindrical shell (11), cap material (12) is provided with light and enters window portion (17), the bottom faces of cylindrical shell (11) is equipped with optical sensor (13), and the inside of cylindrical shell (11) forms photoinduction spatial portion (15).

2. the pick-up unit of mobile object according to claim 1, the sensitive surface (13A) of optical sensor (13) is parallel with the inner bottom surface (11A) of cylindrical shell (11).

3. the pick-up unit of mobile object according to claim 1, optical sensor (13) is the sensor that can the outer light light quantity of perception produces photovoltaic electric current.

4. the pick-up unit of mobile object according to claim 1, is characterized in that: optical sensor (13) is at least one or more.

5. the pick-up unit of mobile object according to claim 1, it is characterized in that: the amplifier (22) in the detection loop (21) of optical sensor (13), signal comparator (23), signal output device (25), controller (26) are serially connected, signal comparator (23) is connected in series with level regulator (24).