CN202693600U - Photoelectric counter - Google Patents
Photoelectric counter Download PDFInfo
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- CN202693600U CN202693600U CN 201220315484 CN201220315484U CN202693600U CN 202693600 U CN202693600 U CN 202693600U CN 201220315484 CN201220315484 CN 201220315484 CN 201220315484 U CN201220315484 U CN 201220315484U CN 202693600 U CN202693600 U CN 202693600U
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Abstract
The utility model discloses a photoelectric counter, and belongs to the field of speed measurement and counter. The photoelectric counter comprises a rotating module and a photoelectric module, the rotating module comprises a grating plate which rotates following movement of a transmitting belt and a rotating shaft which is fixed on the center of the grating plate, and a plurality of grating holes are arranged on the grating plate. The photoelectric module comprises a luminous element, a receiving element which is used to sense light emitted by the luminous element and a processing unit which is used to convert light signals to pulse signals and measure speed and count according to the pulse signals. The light emitted by the luminous element penetrates through the grating holes and irradiates on the receiving element, the processing unit generates the pulse signals according to the light signals sensed by the receiving element and measures whether the speed of the transmission belt is normal. Meanwhile, the processing unit can further count products according to the number of ultra-long low levels in a pulse signal photo.
Description
Technical field
The utility model relates to and testing the speed and the counting field, particularly a kind of photoelectric counter.
Background technology
Along with the development of science and technology, when producing, in order to save the accurate of manpower and counting, often adopt digital electronic unit to realize the counting of product on production line.
At present, on the production line in plant produced workshop, for the counting of product, usually at processor a clock signal is set, the time that the speed that then product passes through on the processor travelling belt that in advance sampling obtains according to system and clock signal obtain counts.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art:
In the prior art, travelling belt is considered to move with uniform velocity in the ideal situation; In case the travelling belt travelling speed fluctuates, just may be so that mistake appears in count results.
The utility model content
In order to solve the problems of the prior art, the utility model embodiment provides a kind of photoelectric counter.Described technical scheme is as follows:
The utility model embodiment provides a kind of photoelectric counter, and described photoelectric counter comprises: rotating module and optical-electric module;
Described rotating module comprises for the grating disc that rotates with the movement of travelling belt and the rotation axis that is fixed on described grating disc center, described grating disc is provided with some gratings hole, and described some gratings hole circumferentially evenly distributes along described grating disc, and described rotation axis is connected with the described travelling belt that is used for transmission product;
Described optical-electric module comprises light-emitting component, be used for responding to the receiving element of the light that described light-emitting component sends and be used for light signal being converted into pulse signal and testing the speed and the processing unit of counting according to described pulse signal; Described receiving element and described processing unit are electrically connected; Described light-emitting component and described receiving element lay respectively at the both sides of described grating disc, and described travelling belt and described light-emitting component are in the same side of described grating disc, and described travelling belt is between described grating disc and described light-emitting component.
Wherein, described processing unit comprises that for the pulse-generating circuit of the light signal generating pulse of responding to according to described receiving element and the processor that is electrically connected with described pulse-generating circuit, described pulse-generating circuit and described receiving element are electrically connected.
Further, described processing unit also comprises: be used for the control subelement that control drives the drive unit of described conveyer belt, described control subelement is connected with described drive unit and described processor simultaneously.
Wherein, described drive unit is DC motor speed-regulating device motor.
Wherein, described light-emitting component and receiving element adopt light-emitting component and the receiving element of the specific wavelength section that is different from visible wavelength.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: the light-emitting component and the receiving element that are positioned at the grating disc both sides by setting, and be located at a plurality of gratings hole on the grating disc, the light that light-emitting component is sent is radiated on the receiving element by the grating hole on the grating disc; Processing unit is according to the light signal generating pulse signal of receiving element induction, and by pulse signal and standard signal are compared, whether the speed of measuring transport tape is normal; Simultaneously, processing unit can also come product is counted according to the low level number of overlength among the pulse signal figure.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the photoelectric counter structural representation that provides among the utility model embodiment 1;
Fig. 2 is the structural representation of the grating disc that provides among the utility model embodiment 1;
Fig. 3 is the photoelectricity transformation principle schematic diagram that provides among the utility model embodiment 1;
Fig. 4 is that processor is processed the pulse signal schematic diagram that obtains among the utility model embodiment 1 under different situations.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Embodiment 1
The utility model embodiment provides a kind of photoelectric counter, and referring to Fig. 1-Fig. 2, this photoelectric counter comprises: rotating module 1 and optical-electric module 2.
Particularly, rotating module 1 comprises for the grating disc 4 that rotates with the movement of travelling belt 3 and the rotation axis 5 that is fixed on grating disc 4 centers, grating disc 4 is provided with some gratings hole 6, and some gratings hole 6 circumferentially evenly distributes along grating disc 4, and rotation axis 5 is connected with the travelling belt 3 that is used for transmission product.
Optical-electric module 2 comprises light-emitting component 7, be used for the receiving element 8 of the light that inducing luminous element 7 sends and be used for light signal is converted into pulse signal and tests the speed and the processing unit 9 of counting according to pulse signal; Wherein, receiving element 8 and processing unit 9 are electrically connected; Light-emitting component 7 and receiving element 8 lay respectively at the both sides of grating disc 4, and travelling belt 3 and light-emitting component 7 are in the same side of grating disc 4, and travelling belt 3 is between grating disc 4 and light-emitting component 7.
Wherein, processing unit 9 comprises for the pulse-generating circuit 9a of the light signal generating pulse signal of responding to according to receiving element 8 and the processor 9b that is electrically connected with pulse-generating circuit 9a, and pulse-generating circuit 9a and receiving element 8 electrical connections.
Particularly, in the present embodiment, referring to Fig. 3, this pulse-generating circuit 9a comprises the resistance and the power supply that is connected with receiving element 8 other ends, the other end ground connection of resistance that is connected with receiving element 8 one ends; Only for giving an example, conduct is not to restriction of the present utility model for this structure.Easily know, when receiving element 8 receives light signal, circuit turn-on, A point place is high level; When receiving element 8 does not receive light signal, not conducting of circuit, A point place is low level.
Further, processing unit 9 also comprises the control subelement 9c that drives the drive unit 10 of described travelling belt 3 motions for control, and control subelement 9c is connected with drive unit 10 and processor 9b simultaneously.
Preferably, drive unit 10 adopts PWM(Pulse Width Modulator, DC motor speed-regulating device) motor.
Further, because whole photoelectric counter is exposed in the air, can be subject to the impact of the light such as sunlight, light, for improving the accuracy of detection of photoelectric counter, can select to be different from the light-emitting component 7 and receiving element 8 of the specific wavelength section of visible wavelength, for example adopt light-emitting component and the receiving element of infrared ray or ultraviolet equiwavelength's section.
Wherein, grating hole 6 is by circumferentially being uniformly distributed on the grating disc 4, and the effect in grating hole 6 is that the light beam of light-emitting component 7 emissions is passed through.The shape size in each grating hole 6 is identical, and the size in grating hole 6 is much smaller than the size of product, and maximum can not surpass the size of a product.
Below in conjunction with Fig. 3, the principle of work of the photoelectric counter that description the utility model embodiment provides.
The drive unit 10 rear rotation that powers on drives travelling belt 3 motions, and travelling belt 3 drives rotation axis 5 rotations that are connected with travelling belt 3; Grating disc 4 rotates under the drive of rotation axis 5.Receive the light time (being that the light that light-emitting component 7 sends is not stopped by product or grating disc 4) of light-emitting component 7 emissions from grating hole 6 when receiving element 8, pulse-generating circuit 9a will produce high level and be delivered to processor 9b; And when receiving element 8 can not be sensed illumination (light that light-emitting component 7 sends is stopped by product or grating disc 4), pulse-generating circuit 9a will produce low level and be delivered to processor 9b.That is to say, processor 9b changes to judge whether the transmission speed of current travelling belt 3 is too fast or excessively slow according to this high-low level, and according to the output of judged result accessory drive 10, thereby adjusts the transmission speed of travelling belt 3; Simultaneously, processor 9b can also count the product on the travelling belt 3 according to this high-low level variation.
Particularly, the speed of supposing travelling belt 3 is at the uniform velocity, in this case, the angular velocity of grating disc 4 also is at the uniform velocity, the light beam of light-emitting component 7 emissions sees through the grating hole 6 that evenly is engraved on the grating disc 4 so, after arriving receiving element 8, obtain stable pulse signal through pulse-generating circuit 9a and be transferred to processor 9b, processor 9b stores this pulse signal as standard signal; In case travelling belt 3 speed change, processor 9b will detect the variation of pulse signal frequency, and namely changing can appear in high-low level length.Processor 9b is according to the pulse signal of normal condition, and the signal during velocity variations compares.
More specifically, referring to Fig. 4, processor 9b may obtain following four kinds of pulse signals, respectively corresponding four kinds of different states.
When the speed of travelling belt 3 is slack-off, corresponding rotation axis 5 angular velocity are also slack-off, cause the angular velocity of grating disc 4 slack-off, the light beams that this moment, light-emitting component 7 continued emission shine frequency on the receiving element 8 with step-down by grating hole 6, cause the pulse signal frequency step-down, namely the length of high-low level can be elongated; Same reason, when the speed of travelling belt 3 accelerates, corresponding rotation axis 5 angular velocity also accelerate, cause the angular velocity of grating disc 4 to accelerate, the light beam of light-emitting component 7 lasting emissions will uprise by the frequency that grating hole 6 shines on the receiving element 8 this moment, cause pulse signal frequency to uprise, namely the length of high-low level can shorten.So, when the speed of travelling belt 3 changed, the length of high-low level was can be simultaneously elongated or shorten, and processor 9b compares and calculates according to current pulse signal and standard signal, draw the speed of current travelling belt 3, and can carry out control break speed to drive unit 10.
Further, when on the travelling belt 3 product being arranged, product is by having blocked grating hole 6, thereby produced low level, because product is very large with respect to grating hole 6, so product by the time produced length very long the overlength low level, and the length of high level does not at this moment change (when product passes through, both sides may not shelter from the grating hole fully, thereby the adjacent high level of the low level both sides of overlength may shorten, but this situation is different when changing with speed), processor 9b counts product according to the low level quantity of overlength.
Need to prove, in the such scheme, the gap between the product is far longer than the gap between the grating hole 6.
The beneficial effect that the embodiment that the utility model provides brings is: the light-emitting component 7 and the receiving element 8 that are positioned at grating disc 4 both sides by setting, and be located at a plurality of gratings hole 6 on the grating disc 4, the light that light-emitting component 7 is sent is radiated on the receiving element 8 by the grating hole 6 on the grating disc 4; Processing unit 9 is according to the light signal generating pulse signal of receiving element 8 inductions, and by pulse signal and standard signal are compared, whether the speed of measuring transport tape 3 is normal; Simultaneously, processing unit 9 can also come product is counted according to the low level number of overlength among the pulse signal figure.
The all or part of step that one of ordinary skill in the art will appreciate that realization above-described embodiment can be finished by hardware, also can come the relevant hardware of instruction to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. a photoelectric counter is characterized in that, described photoelectric counter comprises: rotating module (1) and optical-electric module (2);
Described rotating module (1) comprises for the grating disc (4) that rotates with the movement of travelling belt (3) and the rotation axis (5) that is fixed on described grating disc (4) center, described grating disc (4) is provided with some gratings hole (6), and described some gratings holes (6) circumferentially evenly distribute along described grating disc (4), and described rotation axis (5) is connected with the described travelling belt (3) that is used for transmission product;
Described optical-electric module (2) comprises light-emitting component (7), be used for responding to the receiving element (8) of the light that described light-emitting component (7) sends and be used for light signal being converted into pulse signal and testing the speed and the processing unit of counting (9) according to described pulse signal; Described receiving element (8) and described processing unit (9) are electrically connected; Described light-emitting component (7) and described receiving element (8) lay respectively at the both sides of described grating disc (4), described travelling belt (3) and described light-emitting component (7) are in the same side of described grating disc (4), and described travelling belt (3) is positioned between described grating disc (4) and the described light-emitting component (7).
2. photoelectric counter according to claim 1, it is characterized in that, described processing unit (9) comprises that for the pulse-generating circuit (9a) of the light signal generating pulse signal of responding to according to described receiving element (8) and the processor (9b) that is electrically connected with described pulse-generating circuit (9a), described pulse-generating circuit (9a) and described receiving element (8) are electrically connected.
3. photoelectric counter according to claim 2, it is characterized in that, described processing unit (9) also comprises: be used for the control subelement (9c) that control drives the drive unit (10) of described travelling belt (3) motion, described control subelement (9c) is connected with described drive unit (10) and described processor (9b) simultaneously.
4. photoelectric counter according to claim 3 is characterized in that, described drive unit (10) is DC motor speed-regulating device motor.
5. photoelectric counter according to claim 1 is characterized in that, described light-emitting component (7) and receiving element (8) adopt light-emitting component and the receiving element of the specific wavelength section that is different from visible wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315484 CN202693600U (en) | 2012-07-02 | 2012-07-02 | Photoelectric counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315484 CN202693600U (en) | 2012-07-02 | 2012-07-02 | Photoelectric counter |
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| Publication Number | Publication Date |
|---|---|
| CN202693600U true CN202693600U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220315484 Expired - Fee Related CN202693600U (en) | 2012-07-02 | 2012-07-02 | Photoelectric counter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768289A (en) * | 2012-07-02 | 2012-11-07 | 江汉大学 | Photoelectric speed measuring and counting device |
| CN104463320A (en) * | 2014-12-02 | 2015-03-25 | 中国十九冶集团有限公司 | Section bar counting device |
| CN105657944A (en) * | 2016-03-17 | 2016-06-08 | 江汉大学 | Light processing system |
| CN105954535A (en) * | 2016-07-12 | 2016-09-21 | 江苏省无锡探矿机械总厂有限公司 | Sensor speed measuring device used for drilling machine protrusion frame |
| CN106228231A (en) * | 2016-09-09 | 2016-12-14 | 上海风偃自动化科技有限公司 | Belt conveyor different size object batch loads in mixture the count detection method of transmission |
| CN106250977A (en) * | 2016-09-09 | 2016-12-21 | 上海风偃自动化科技有限公司 | A kind of count detection method of belt conveyor |
| CN114810842A (en) * | 2022-06-28 | 2022-07-29 | 天津德沃尔智能科技有限公司 | Crossed bearing device |
-
2012
- 2012-07-02 CN CN 201220315484 patent/CN202693600U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768289A (en) * | 2012-07-02 | 2012-11-07 | 江汉大学 | Photoelectric speed measuring and counting device |
| CN104463320A (en) * | 2014-12-02 | 2015-03-25 | 中国十九冶集团有限公司 | Section bar counting device |
| CN105657944A (en) * | 2016-03-17 | 2016-06-08 | 江汉大学 | Light processing system |
| CN105954535A (en) * | 2016-07-12 | 2016-09-21 | 江苏省无锡探矿机械总厂有限公司 | Sensor speed measuring device used for drilling machine protrusion frame |
| CN106228231A (en) * | 2016-09-09 | 2016-12-14 | 上海风偃自动化科技有限公司 | Belt conveyor different size object batch loads in mixture the count detection method of transmission |
| CN106250977A (en) * | 2016-09-09 | 2016-12-21 | 上海风偃自动化科技有限公司 | A kind of count detection method of belt conveyor |
| CN106228231B (en) * | 2016-09-09 | 2019-01-08 | 上海风偃自动化科技有限公司 | Belt conveyor different size object batch loads in mixture the count detection method of transmission |
| CN106250977B (en) * | 2016-09-09 | 2019-01-08 | 上海风偃自动化科技有限公司 | A kind of count detection method of belt conveyor |
| CN114810842A (en) * | 2022-06-28 | 2022-07-29 | 天津德沃尔智能科技有限公司 | Crossed bearing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130702 |