CN102752999A - Automatic counting method of parts on surface mount technology (SMT) splice tape and automatic part counter - Google Patents

Automatic counting method of parts on surface mount technology (SMT) splice tape and automatic part counter Download PDF

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Publication number
CN102752999A
CN102752999A CN2011101029658A CN201110102965A CN102752999A CN 102752999 A CN102752999 A CN 102752999A CN 2011101029658 A CN2011101029658 A CN 2011101029658A CN 201110102965 A CN201110102965 A CN 201110102965A CN 102752999 A CN102752999 A CN 102752999A
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China
Prior art keywords
smt
strip
target image
automatic
counting
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Pending
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CN2011101029658A
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Chinese (zh)
Inventor
陈文华
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Inventec Corp
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Inventec Corp
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Priority to CN2011101029658A priority Critical patent/CN102752999A/en
Publication of CN102752999A publication Critical patent/CN102752999A/en
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Abstract

An automatic counting method of parts on an SMT splice tape can be applied to an automatic part counter. The automatic counting method includes reading a target image corresponding to the SMT splice tape, wherein the SMT splice tape is provided with a plurality of parts and the target image is the image of at least one part on the SMT splice tape; rolling the SMT splice tape to enable the SMT splice tape to pass a detecting area and continuously capturing a real-time image of part of the SMT splice tape in the detecting area by utilizing an image detector; comparing the real-time image with the target image; outputting part existing signals when the real-time image accords with the target image; and starting a counting program to count the amount of the parts on the SMT splice tape according to the first part existing signal.

Description

Automatically the method for part reaches some material machine automatically on the counting surface mount technology strip
Technical field
The present invention relates to a kind of counting surface mount technology (surface mount technology, the SMT) method of the SMT part on the strip and put the material machine automatically, the method for the part on particularly a kind of automatic counting SMT strip and put the material machine automatically.
Background technology
The electronics processer need maintain enough stocks to making required various assemblies, but that numerous small parts such as resistance in heaps or transistor are not only taken in is difficult, for quantitative keyholed back plate a great problem especially.The dealer needs accurately to control present stock's quantity, could manage storage situation and cost effectively.
But this situation is along with the exploitation of SMT has had change.The dealer is disposed at a large amount of parts on the flexible SMT strip with modes such as stickups regularly, again the SMT strip is tied to be rolled into and takes in after strip is rolled up, and therefore can fitly a large amount of parts be taken in management.In order to calculate the part number,, manufacturer utilizes the part number in the strip length computation SMT strip though developing a kind of material machine of putting.But the front and back of a volume SMT strip each some are the empty strips that does not have part, and therefore traditional method need be with the original position and the end position of the part that is welded with part in the artificial judgment strip, and can't automatically calculate.Therefore each some material machine all needs an operator operation, and the operation efficiency of manpower is extremely low.
In order to calculate number of parts automatically; Except location hole; There is dealer's other correspondence on the position of each part on the SMT strip to offer and confirms the hole; And the existence that part is judged in the affirmation hole that utilizes the below of part in the laser radiation strip whether, but this method receives the refractive index of piece surface material to influence that therefore accuracy rate is not high easily.And this method only is applicable to the SMT strip that offers the affirmation hole under the part in addition, can't general various types of SMT strips and part.
Summary of the invention
Technical problem to be solved by this invention provides a kind of automatic counting surface mount technology, and (surface mount technology, the SMT) method of the part on the strip and put the material machine automatically can automatically be calculated the part number.
To achieve these goals, the invention provides the method for the part on a kind of automatic counting surface mount technology strip, wherein, comprising:
Read a target image of a corresponding SMT strip, wherein this SMT strip has a plurality of parts, and this target image is the image of at least one this part on this SMT strip;
This SMT strip of scrolling makes this SMT strip through a surveyed area, and utilizes a visual detector to continue a realtime graphic of this SMT strip of part in this surveyed area of acquisition;
Compare this realtime graphic and this target image;
When this realtime graphic is consistent with this target image, exports a part and have signal; And
There is signal according to first this part, starts a counting procedure to calculate a part number of this SMT strip.
The method of the part on the above-mentioned automatic counting SMT strip, wherein, this step that reads this target image that should the SMT strip comprises:
Read a bar code of this SMT strip; And
Read this target image that should the SMT strip according to this bar code.
The method of the part on the above-mentioned automatic counting SMT strip wherein, also comprises:
Set one of this part and detect the timing threshold value;
When detecting within the time limit of timing threshold value, when not having arbitrary this realtime graphic consistent, export a part end signal with this target image at this; And
When receiving this part end signal, stop this counting procedure, and obtain this part number by this counting procedure.
The method of the part on the above-mentioned automatic counting SMT strip, wherein, this counting procedure comprises:
Calculate this SMT strip between the starting period of this counting procedure in by a scrolling length of scrolling;
Read a count parameter that should the SMT strip; And
Calculate this part number according to this scrolling length and this count parameter.
In order to realize above-mentioned purpose better, the present invention also provides the automatic some material machine of the part on a kind of automatic counting SMT strip, wherein, comprising:
One first care feed tray carries a plurality of parts that are not counted as yet in the SMT strip;
One second care feed tray;
One motor rotates this second care feed tray, so that those parts are moved to this second care feed tray by this first care feed tray, and makes this SMT strip through a surveyed area;
One visual detector, a realtime graphic of this SMT strip of part in lasting this surveyed area of acquisition;
One controller, compare this realtime graphic with to a target image that should the SMT strip, wherein this target image is the image of at least one this part on this SMT strip; When this realtime graphic was consistent with this target image, this controller was exported a part and is had signal; And
There is signal enabling in one counter according to first this part, to calculate a part number of this SMT strip.
The automatic some material machine of the part on the above-mentioned automatic counting SMT strip wherein, also comprises:
One barcode machine reads a bar code of this SMT strip, and this controller reads this target image that should the SMT strip according to this bar code.
The automatic some material machine of the part on the above-mentioned automatic counting SMT strip; Wherein, This controller is set one of this part and is detected the timing threshold value, and when detecting within the time limit of timing threshold value, when not having arbitrary this realtime graphic consistent with this target image at this; Export a part end signal, and this counter stops according to this part end signal.
The automatic some material machine of the part on the above-mentioned automatic counting SMT strip; Wherein, This counter calculate this SMT strip between the starting period of this counter in by a scrolling length of scrolling; And read, and calculate this part number according to this scrolling length and this count parameter to a count parameter that should the SMT strip.
Technique effect of the present invention is: count the method for the part on the SMT strip automatically and put the material machine automatically and can utilize visual detector automatically to start and end counting procedure, therefore can automatically calculate the part number.And see through the mode of setting up corresponding target image in advance, can make this method be applicable to various SMT strips and part.
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Description of drawings
Figure 1A is the schematic appearance of the automatic some material machine of the part on the automatic counting SMT strip of an embodiment;
Figure 1B is the enlarged drawing that the part of an embodiment is put the material machine automatically;
Fig. 2 is the flow chart of the method for the part on the automatic counting SMT strip of an embodiment;
Fig. 3 A is the sketch map of the target image of an embodiment;
Fig. 3 B is the sketch map of the target image of an embodiment;
Fig. 4 A is the sketch map of the surveyed area of an embodiment;
Fig. 4 B is the sketch map of the surveyed area of an embodiment;
Fig. 4 C is the sketch map of the surveyed area of an embodiment;
Fig. 5 is the flow chart of the counting procedure of an embodiment.
Wherein, Reference numeral
10 put material machine 11 first care feed trays automatically
12 second care feed trays, 13 motors
14 controllers, 15 barcode machines
16 visual detectors, 17 counters
20 SMT strips, 22 parts
24 location holes, 30 target images
40 surveyed areas
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:
The present invention provides the method for the part on a kind of automatic counting SMT strip, has a part number of a SMT strip of a plurality of parts with calculating.The present invention provides the automatic some material machine (being designated hereinafter simply as automatic some material machine) of the part on the automatic counting SMT strip that uses this method simultaneously, also can be referred to as the automated part counter and put the material machine automatically.
Please with reference to Figure 1A and Figure 1B, it is the schematic appearance of the automatic some material machine of an embodiment, and part is put the enlarged drawing of material machine automatically.
Automatically the two ends individual configuration of some material machine 10 has one first care feed tray 11 and one second care feed tray 12, has the SMT strip 20 of a plurality of parts 22 in order to carrying.In the embodiment of Figure 1A and Figure 1B, the care feed tray on the right is first care feed tray 11, and it carries the part 22 that is not counted as yet in the SMT strip 20.Automatically a motor 13 of some material machine 10 rotates second care feed tray 12, so that part 22 is moved to second care feed tray 12 by first care feed tray 11.
Wherein part 22 can be passive components (passive component) such as resistance, electric capacity or inductance, also can be driving components (active component) such as diode, transistor or integrated circuit.
Please cooperate Figure 1A and Figure 1B and with reference to Fig. 2, Fig. 2 is the flow chart of the method for the part on the automatic counting SMT strip of an embodiment.
For correctly calculate the part number, just at first need to judge automatically in the SMT strip 20 from where beginning to dispose part 22.This controller 14 of putting material machine 10 is automatically read a target image (step S110) of corresponding SMT strip 20.
Please be simultaneously with reference to Fig. 3 A, it is the sketch map of the target image of an embodiment.Target image 30 is at least one part 22 images on SMT strip 20, and target image 30 is captured with the mode of manual work or automatic photography in advance.Yet Fig. 3 A is merely an example, and the scope of the SMT strip 20 that 30 of target images capture or the number of part 22 be as limit, for example also the feature of fechtable part 22 as target image 30.
In more detail, need indivedual corresponding target images 30 of taking to the SMT strip with different parts 22 20, correctly to carry out the step of follow-up identification part 22.Therefore can set up a form or a database in advance, store different SMT strip 20 pairing different target images 30.According to an embodiment, can utilize a barcode machine 15 of automatic some material machine 10 to read a bar code of SMT strip 20; Read the target image 30 of corresponding SMT strip 20 again from form or database according to bar code.
And motor 13 continues scrolling SMT strips 20, makes the different piece surveyed area through a visual detector 16 constantly in the SMT strip 20.Automatically put material machine 10 and utilize visual detector 16 to continue realtime graphics (step S120) of the part SMT strip 20 in the acquisition surveyed areas.Visual detector 16 can be that (charge coupled device CCD), is configured in its surveyed area and can contains at least by the part SMT strip 20 of scrolling a Charged Coupled Device.For example, visual detector 16 can be configured in the centre of first care feed tray 11 and second care feed tray 12, and is as shown in Figure 1; Also can be disposed near first care feed tray 11 or the position of second care feed tray 12.In other words, visual detector 16 continues to pass through in the acquisition SMT strip 20 image of the part of fixing surveyed area.
Please with reference to Fig. 4 A, Fig. 4 B and Fig. 4 C, it is respectively the sketch map of the surveyed area of an embodiment.
In present embodiment, SMT strip 20 is constantly by scrolling from right to left.When SMT strip 20 had just begun by scrolling, section start (left side in the present embodiment) was the sky strip, does not dispose part 22 above.Therefore when just beginning by scrolling, the empty strip of in the realtime graphic that surveyed area 40 captures, only seeing of the part to SMT strip 20 is like Fig. 4 A.
Along with motor 13 runnings, begin to have the part 22 on the SMT strip 20 to get into surveyed area 40.Therefore in Fig. 4 B, first part 22 has appearred in the realtime graphic.SMT strip 20 can continue by scrolling, and visual detector 16 can continue to capture as Fig. 4 C as surveyed area 40 interior SMT strips 20 all dispose the realtime graphic of part 22.
New realtime graphic and target image 30 (step S130) that controller 14 comparison continues to obtain, and judge realtime graphic and target image 30 whether consistent (step S140).When realtime graphic and target image 30 were consistent, there was signal (step S150) in controller 14 outputs one part.For example, when SMT strip 20 is scrolled to the state of Fig. 4 B, when controller 14 judges that the target image 30 of realtime graphic and Fig. 3 A of surveyed area 40 of corresponding this moment is identical, just send part and have signal.
According to another embodiment, target image 30 can be set to shown in Fig. 3 B.Then work as SMT strip 20 and begin from the state that is scrolled to Fig. 4 C, till the empty strip of the tail end that does not dispose part 22, controller 14 can continue output element and have signal.
It is noted that, but the size of the setting mating parts 22 of target image 30, SMT strip 20 by the speed of scrolling or the factors such as surveyed area 40 of visual detector 16, this method does not limit.
Have signal according to first part, a counter 17 of putting material machine 10 automatically starts the part number (step S160) that a counting procedure calculates SMT strip 20.That is to say, put material machine 10 automatically and judge by visual detector 16 whether the SMT strip 20 in the scrolling has disposed the part of part 22 from the part entering of empty strip, and automatic according to this enabling counting program.
And stop counting procedure automatically when being rolled to the empty strip of the tail end that does not dispose part 22 at SMT strip 20 and obtain the result of counting, controller 14 can be set corresponding to one of part 22 and detect the timing threshold value.When all not having arbitrary realtime graphic and target image 30 consistent within the time limit of detecting the timing threshold value, export a part end signal with the termination counting procedure, and obtain the part number by counting procedure.
Wherein detecting the timing threshold value for example can be 1 second or 2 seconds, can be set by the factors such as speed of scrolling according to the arranging density and the SMT strip 20 of part 22 on the SMT strip 20.And, not having signal when controller 14 within the time limit of detection timing threshold value all sends part corresponding to the embodiment of target image 30 shown in Fig. 3 B, controller 14 is with regard to the output element end signal.In addition, also counter 17 is all confiscated part and is had signal within the time limit of detecting the timing threshold value, just stops counting procedure automatically and exports the part number of operation result.
In fact the step of calculation procedure execution is please with reference to Fig. 5, and it is the flow chart of the counting procedure of an embodiment.
Counter 17 calculate earlier SMT strips 20 between the starting period of counting procedure in by a scrolling length of scrolling, and read a count parameter of corresponding SMT strip 20.Wherein count parameter is represented the number of the part 22 that every long measure has in the SMT strip 20, and counter 17 can be equally reads the count parameter of corresponding SMT strip 20 according to bar code again from form or database.Then counter 17 just can calculate the part number according to scrolling length and count parameter.
General SMT strip 20 has the location hole 24 of row, the identical spacing of tool between each location hole 24.Therefore counter 17 can see through a fluorescence detector or a sprocket wheel of similar step gear calculate SMT strip 20 between the starting period of counting procedure in by the number of the location hole 24 of scrolling as scrolling length.For example therefore each double wedge of sprocket wheel can learn scrolling length with the step level (step) of sprocket rotation to individually corresponding to location hole 24.For example fluorescence detector can send laser by the place that appearance is understood in a side aligned hole 24 of SMT strip 20 again, and judges whether to receive the laser that passes location hole 24 in the opposite side of SMT strip 20; And receive that whenever the laser that once passes location hole 24 just represents SMT strip 20 by location hole distance of scrolling.
For example if per 3 location holes 24 corresponding to 1 part 22, so its count parameter is set as 3.And SMT strip 20 is 9000 location hole distances by the scrolling length of scrolling between the starting period of counting procedure, and then the part number is 9000 ÷ 3=3000.
In sum; Automatically the method for the part on the counting SMT strip and put the material machine automatically and can utilize visual detector to differentiate the part of SMT strip hollow strip and boundary automatically with part of part, and automatically perform counting procedure according to this and calculate the part number.Therefore the operator of some material machine does not need to keep on a machinery next door always automatically, and can a people take into account many some material machines automatically, and is very convenient efficient again.And,, have more versatility than the method for counting of prior art applicable to the SMT strip and the part of any kind of as long as set up corresponding target image.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (8)

1. a method of counting the part on the surface mount technology strip automatically is characterized in that, comprising:
Read a target image of a corresponding SMT strip, wherein this SMT strip has a plurality of parts, and this target image is the image of at least one this part on this SMT strip;
This SMT strip of scrolling makes this SMT strip through a surveyed area, and utilizes a visual detector to continue a realtime graphic of this SMT strip of part in this surveyed area of acquisition;
Compare this realtime graphic and this target image;
When this realtime graphic is consistent with this target image, exports a part and have signal; And
There is signal according to first this part, starts a counting procedure to calculate a part number of this SMT strip.
2. the method for the part on the automatic counting SMT strip as claimed in claim 1 is characterized in that, this step that reads this target image that should the SMT strip comprises:
Read a bar code of this SMT strip; And
Read this target image that should the SMT strip according to this bar code.
3. the method for the part on the automatic counting SMT strip as claimed in claim 1 is characterized in that, also comprises:
Set one of this part and detect the timing threshold value;
When detecting within the time limit of timing threshold value, when not having arbitrary this realtime graphic consistent, export a part end signal with this target image at this; And
When receiving this part end signal, stop this counting procedure, and obtain this part number by this counting procedure.
4. the method for the part on the automatic counting SMT strip as claimed in claim 1 is characterized in that this counting procedure comprises:
Calculate this SMT strip between the starting period of this counting procedure in by a scrolling length of scrolling;
Read a count parameter that should the SMT strip; And
Calculate this part number according to this scrolling length and this count parameter.
5. an automatic some material machine of counting the part on the SMT strip automatically is characterized in that, comprising:
One first care feed tray carries a plurality of parts that are not counted as yet in the SMT strip;
One second care feed tray;
One motor rotates this second care feed tray, so that those parts are moved to this second care feed tray by this first care feed tray, and makes this SMT strip through a surveyed area;
One visual detector, a realtime graphic of this SMT strip of part in lasting this surveyed area of acquisition;
One controller, compare this realtime graphic with to a target image that should the SMT strip, wherein this target image is the image of at least one this part on this SMT strip; When this realtime graphic was consistent with this target image, this controller was exported a part and is had signal; And
There is signal enabling in one counter according to first this part, to calculate a part number of this SMT strip.
6. the automatic some material machine of the part on the automatic counting SMT strip as claimed in claim 5 is characterized in that, also comprises:
One barcode machine reads a bar code of this SMT strip, and this controller reads this target image that should the SMT strip according to this bar code.
7. the automatic some material machine of the part on the automatic counting SMT strip as claimed in claim 5; It is characterized in that; This controller is set one of this part and is detected the timing threshold value, and when detecting within the time limit of timing threshold value, when not having arbitrary this realtime graphic consistent with this target image at this; Export a part end signal, and this counter stops according to this part end signal.
8. the automatic some material machine of the part on the automatic counting SMT strip as claimed in claim 5; It is characterized in that; This counter calculate this SMT strip between the starting period of this counter in by a scrolling length of scrolling; And read, and calculate this part number according to this scrolling length and this count parameter to a count parameter that should the SMT strip.
CN2011101029658A 2011-04-19 2011-04-19 Automatic counting method of parts on surface mount technology (SMT) splice tape and automatic part counter Pending CN102752999A (en)

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Application Number Priority Date Filing Date Title
CN2011101029658A CN102752999A (en) 2011-04-19 2011-04-19 Automatic counting method of parts on surface mount technology (SMT) splice tape and automatic part counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101029658A CN102752999A (en) 2011-04-19 2011-04-19 Automatic counting method of parts on surface mount technology (SMT) splice tape and automatic part counter

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516293A (en) * 2017-01-10 2017-03-22 浙江思平智能科技有限公司 Intelligent material counting and distributing system and material distributing method thereof
CN110913680A (en) * 2019-12-01 2020-03-24 深圳市智微智能软件开发有限公司 SMT automatic feeding method and system
CN114229572A (en) * 2021-12-30 2022-03-25 崇辉半导体(深圳)有限公司 Counting system and race number machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516293A (en) * 2017-01-10 2017-03-22 浙江思平智能科技有限公司 Intelligent material counting and distributing system and material distributing method thereof
CN110913680A (en) * 2019-12-01 2020-03-24 深圳市智微智能软件开发有限公司 SMT automatic feeding method and system
CN110913680B (en) * 2019-12-01 2021-07-13 深圳市智微智能软件开发有限公司 SMT automatic feeding method and system
CN114229572A (en) * 2021-12-30 2022-03-25 崇辉半导体(深圳)有限公司 Counting system and race number machine

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Application publication date: 20121024