CN104826813A - Efficient microphone sorting machine - Google Patents

Efficient microphone sorting machine Download PDF

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Publication number
CN104826813A
CN104826813A CN201510171735.5A CN201510171735A CN104826813A CN 104826813 A CN104826813 A CN 104826813A CN 201510171735 A CN201510171735 A CN 201510171735A CN 104826813 A CN104826813 A CN 104826813A
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CN
China
Prior art keywords
charging
microphone
detection
path
sliding panel
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CN201510171735.5A
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Chinese (zh)
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CN104826813B (en
Inventor
何亮亮
孙永剑
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Zhejiang Sci Tech University ZSTU
Zhejiang University of Science and Technology ZUST
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Zhejiang Sci Tech University ZSTU
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Priority to CN201510171735.5A priority Critical patent/CN104826813B/en
Publication of CN104826813A publication Critical patent/CN104826813A/en
Application granted granted Critical
Publication of CN104826813B publication Critical patent/CN104826813B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to the technical field of electronic product detection, and discloses an efficient microphone sorting machine. The efficient microphone sorting machine comprises a frame; the frame is provided with a feeding mechanism and a detection mechanism. The feeding mechanism comprises a vibration disc and a distribution disc; the detection mechanism comprises a base block and a slide plate; baffle plates are arranged on the base block and at two sides of the slide plate; two parallel sliding poles are arranged between the baffle plates; a detection gap is arranged on the front of the slide plate; a sound hole is arranged on the base block and just below the detection gap; a detection pressure finger is arranged right above the slide plate; the front end of the detection pressure finger is provided with a detection head; a pressure spring is between the rear end of the detection pressure finger and the slide plate; a lifting cylinder is arranged on the slide plate; the shaft end of the lifting cylinder is provided with a horizontal pressure bar; a blanking channel penetrating through the top surface of the base block is arranged in the base block; the bottom of the blanking channel is provided with a two-way sorting mechanism; and the base block is provided with a horizontal cylinder for driving the slide plate to slide. The present invention has the beneficial effects of fast and stable feeding, and high testing and separation efficiency.

Description

Mini microphone efficient classifier
Technical field
The present invention relates to microphone grouping system technical field, particularly relate to a kind of mini microphone efficient classifier.
Background technology
Microphone is also miaow head or condenser microphone, and usual signal to noise ratio judges microphone quality as index at present, and signal to noise ratio is also decibel or sensitivity, represents with DB.After a collection of microphone processes, need to carry out sorting to microphone DB value, sub-elect the product met the requirements of the customers, microphone industry has a word to be called " microphone quality is by sorting out ", and visible, detection, the sorting of microphone are extremely important.Present microphone sorting can be divided into manual sorting and automatic sorting, and obvious manual sorting does not catch up with demand completely, current automatic sorting sorting is very meticulous, a sorting just sorts out the microphone within the scope of various sensitivity simultaneously, such as a collection of microphone is after a sorting, directly be divided into 35DB-40DB, 40DB-45DB, 45DB-50DB, the multiple scope such as 50DB-55DB, and client only needs the product within the scope of one of them, because classification is very thin, thus cause each microphone to extend detection time, also to microphone accurately be assigned in corresponding magazine after detection, time is longer, cause detecting microphone and there is wait, the efficiency of separation is low, be difficult to sub-elect the product met the requirements of the customers at short notice, and microphone long storage time can cause DB value to offset, if therefore after a collection of microphone sorting, do not sell in time again, in order to ensure the quality of products before follow-up sales, also need sorting again.
Chinese patent Authorization Notice No.: CN203265084, authorized announcement date on November 6th, 2013, disclose a kind of Full automatic digital microphone Test handler, comprise feed mechanism, rotary feeding mechanism, mechanism for testing, classification blanking mechanism and receiving mechanism, wherein feed mechanism comprises the vibrating chassis be arranged on the first panel, this vibrating chassis is provided with hopper, also comprises the track be arranged on linear vibrator, one end of this track is connected with the outlet of aforementioned hopper.Although its weak point be this kind of automatic fraction collector with manual concentration criterion comparatively, efficiency improves greatly, however can only detect one by one microphone, sorting, complex structure, the efficiency of separation still cannot satisfy the demands.
Summary of the invention
The present invention, in order to overcome the inefficient deficiency of microphone grouping system of the prior art, provides the detection of a kind of greatly raising microphone, the efficiency of separation, can sub-elect the mini microphone efficient classifier of the product that meets the requirements of the customers at short notice fast.
To achieve these goals, the present invention adopts following technical scheme:
A kind of mini microphone efficient classifier, comprise frame, frame is provided with feeding mechanism, testing agency, described feeding mechanism involving vibrations dish, material separating disc, described material separating disc is provided with the total road of charging, the charging by-path that three tunnels are communicated with the total road of charging, the upper edge of described charging by-path is provided with the press strip along the distribution of charging by-path, the upper edge of described charging by-path is provided with the press strip along the distribution of charging by-path, described testing agency comprises matrix, sliding panel, both sides matrix being positioned at sliding panel are provided with baffle plate, two parallel sliding bars are provided with between baffle plate, described sliding bar runs through sliding panel, the downside of described sliding panel and the upper side of matrix are fitted, the front end of described sliding panel is provided with detects breach one to one with charging by-path, matrix is positioned at detect immediately below breach and is provided with sound hole, detection end finger is provided with directly over described sliding panel, described detection end finger and sliding panel are rotationally connected, the front end detecting end finger is provided with detection head, detect between the rear end of end finger and sliding panel and be provided with stage clip, described sliding panel is also provided with lift cylinder, the axle head of lift cylinder is provided with horizontal struts, the blanking channel through with matrix end face is provided with in described matrix, the bottom of blanking channel is provided with two-way sorting mechanism, matrix is also provided with the horizontal air cylinder for driving sliding panel to slide, when horizontal air cylinder axle is in retraction, when stretching out two states, detect breach and lay respectively at sound hole, directly over blanking channel.
Detection head is connected with detector by data wire, first set the DB value scope that microphone needs sorting, the product dropped within the scope of this is customer demand product, and the product not within the scope of this is uncertain product, will realize in a large amount of microphone, sub-electing customer demand product fast in this structure.Detection breach on sliding panel is moved to directly over sound hole in the effect of horizontal air cylinder, now detect breach to dock with the discharge end of charging by-path, lift cylinder shaft extension goes out, depression bar is pressed in the rear end detecting end finger, the front end detecting end finger sticks up, the sound passing into certain frequency is continued in sound hole, vibrating disk put into by a large amount of microphone, microphone in vibrating disk continues to enter the total road of charging, in charging shunting, then wheat enters detection breach, the retraction of lift cylinder axle, detect end finger under the effect of stage clip, the detection head detecting end finger head declines and is pressed in the both positive and negative polarity of the pcb board of microphone, microphone builtin voltage detected, detector is converted into DB value magnitude of voltage automatically, and (only there is two states after detecting in each microphone: customer demand product, uncertain product), detection head is separated with microphone, horizontal air cylinder drives sliding panel translation, the microphone detected in breach is made to enter in blanking channel, according to the judgment value to microphone after detection before, the two-way sorting mechanism of blanking channel opens corresponding passage, microphone after detection is fallen in two kinds of magazines, microphone after sorting only has customer demand product, uncertain product, reduce unnecessary sorting action, the product of customer demand can be sub-elected within the extreme time, set all the other DB value scopes, to the sorting again of uncertain product, thus segmentation can be realized, sorting thinking changes, multiple microphone is grouping system simultaneously, as long as it is upper that charging is followed, the even more products sorting simultaneously of ten products can be realized in theory, time required for each sorting of single microphone is 1/5 of current automatic separation equipment, suppose triple channel charging, 5 DB intervals of hanking are divided a collection of microphone, the comprehensive efficiency of separation is three times of current automation equipment, 15 times of current automation equipment to product selecting efficiency in customer demand DB interval, detector heating can have influence on accuracy of detection, and each detection is only the judgement of two kinds of situations in this structure, little to the burden of detector, detector internal data processing module is not easily generated heat, detect more stable, after the microphone in charging by-path is booked, and due to linear vibrator sustained vibration, press strip can prevent microphone opposing compression and jump out charging by-path in charging by-path, keeps charging to stablize.
As preferably, described baffle plate is also provided with caging bolt.Caging bolt is used for extreme position when regulating sliding panel to slide, and ensures that the detection breach on sliding panel can align with sound hole, blanking channel.
As preferably, be provided with a source of sound bottom frame, a source of sound is communicated with sound hole one_to_one corresponding respectively by sound pipe.Multiple sound hole shares a source of sound, ensures that testing conditions is consistent, thus avoids the metrical error that the difference of source of sound own is brought, improve accuracy of detection.
As preferably, the front end of described detection end finger extends to form contiguous block, and the outer end of contiguous block is provided with horizontal draw-in groove, contiguous block is also provided with the U-shaped breach running through horizontal draw-in groove; Described detection head comprises chaining pin, chaining pin fixed head, and described chaining pin fixed head snaps in after in horizontal draw-in groove from U-shaped indentation, there and passes through bolt-locking.Because on the pcb board of microphone, solder joint model is various, such as, there are concentric circles solder joint type, disymmetry solder joint type, pin type, for the detection of different model microphone.Need to use different detection heads, in this structure, detection head is changed very convenient.
As preferably, described chaining pin has two groups, totally four, and four chaining pins are vertically fixed on chaining pin fixed head, and the line of four chaining pins is in square, and two chaining pins at any diagonal angle form one group.Disymmetry solder joint type microphone uses the most extensive, adopts two groups of chaining pins to detect, reduce loss greatly during detection.
As preferably, lower end and the matrix bottom surface of described blanking channel are through, the sub-material passage with blanking channel lower end cross connection is also provided with in matrix, the described junction falling to passage and sub-material passage is provided with slide damper, described slide damper is slided by air cylinder driven, and the top that blanking channel side is positioned at slide damper is provided with gas blow pipe; When slide damper stretch out, gas blow pipe blow time, microphone is blown in sub-material passage, when slide damper retraction, gas blow pipe stop blow time, microphone is discharged bottom blanking channel.According to testing result, cylinder, gas blow pipe adopt different actions, thus in the different magazine of the product introduction that can realize two kinds of testing results.
As preferably, described material separating disc tilt distribution, the discharge end of charging by-path is positioned at material separating disc lower end, is provided with linear vibrator bottom described material separating disc, the discharging opening place end face of charging by-path and sliding panel detects between the end face of breach place and there is gap.Owing to having impact to source of sound when linear vibrator vibrates, therefore material separating disc does not contact with sliding panel, reduces linear vibrator to the interference of source of sound.
As preferably, the upper end of described material separating disc is provided with the total road of charging, and the lower end in the total road of charging is provided with circular cushion chamber, and the upper end of described charging by-path is communicated with cushion chamber side, described cushion chamber center is provided with moving block, forms circular passage between moving block and cushion chamber sidewall.External microphone continues to enter in the total road of charging, enter in the circular passage of cushion chamber under the effect on linear vibrator and material separating disc inclined-plane, under the effect of moving block, microphone enters in charging by-path respectively, finally enter and detect in breach, thus prevent the feed end putty of charging by-path.
As preferably, the sidewall of described cushion chamber is provided with rubber strip, and the circumference of described moving block is arranged with rubber sleeve, and the outside of described rubber sleeve is evenly distributed with positive stop lug boss, and the position between adjacent two positive stop lug boss can only hold a microphone.When moving block rotates, microphone, between adjacent two positive stop lug boss, then by stable feeding charging by-path, ensures that charging is stablized, prevents from getting stuck, putty.
As preferably, the bottom of described cushion chamber is positioned at both sides, charging by-path upper end and is respectively equipped with elasticity positioning bead, elasticity positioning bead in the raw time, the ultimate range of the protrusion cushion chamber bottom surface of elasticity positioning bead is 0.3mm-0.6mm, and the length of described charging by-path is the integral multiple of microphone diameter.Microphone is between two positive stop lug boss, when turning to the charging aperture place of charging by-path, if the charging aperture place of feeding-passage is empty (in charging by-path, microphone is not full), so microphone can enter in this charging by-path under the vibration double action of the obstruction of elasticity positioning bead, linear vibrator; If the charging aperture place of charging by-path is full, so microphone from the top process of elasticity positioning bead, can enter the charging aperture place of next charging by-path, prevents microphone from dallying in circular passage, thus ensures stable, uniform feeding in each charging by-path; The length of charging by-path is the integral multiple of microphone diameter, and half microphone is in circular passage to prevent half microphone from entering in charging by-path.
Therefore, the present invention has following beneficial effect: (1) multichannel charging, simultaneously detection, the multiple product of sorting, and the efficiency of separation is high; (2) feed for duration is stablized, not fracture, putty.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is that in the present invention, microphone detects rear sliding panel translation view.
Fig. 3 is detection head and microphone contact detection view.
Fig. 4 is after detection head detects and microphone released state schematic diagram.
Fig. 5 is that microphone drops out schematic diagram from blanking channel lower end.
Fig. 6 is that microphone enters sub-material access diagram from blanking channel.
Fig. 7 is sliding panel and matrix mated condition schematic diagram.
Fig. 8 is A place enlarged diagram in Fig. 1.
Fig. 9 is B place enlarged diagram in Fig. 4.
In figure: frame 1, feeding mechanism 2, testing agency 3, microphone 4, detect end finger 5, lift cylinder 6, horizontal struts 7, horizontal air cylinder 8, source of sound 9, sound pipe 10, blanking channel 11, sub-material passage 12, slide damper 13, cylinder 14, gas blow pipe 15, material separating disc 20, linear vibrator 21, charging by-path 22, the total road 23 of charging, cushion chamber 24, moving block 25, circular passage 26, elasticity positioning bead 27, vibrating disk 28, press strip 29, matrix 30, sliding panel 31, detection head 50, stage clip 51, Cylinder mount bracket 60, rubber strip 240, rubber sleeve 250, positive stop lug boss 251, baffle plate 300, sound hole 301, caging bolt 302, sliding bar 310, detect breach 311, contiguous block 500, horizontal draw-in groove 501, U-shaped breach 502, chaining pin 503, chaining pin fixed head 504.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of mini microphone efficient classifier as shown in figures 1 and 3, comprise frame 1, frame is provided with feeding mechanism 2, testing agency 3, feeding mechanism 2 comprises material separating disc 20, vibrating disk 28, material separating disc 20 is provided with the total road 23 of charging, the charging by-path 22 that three tunnels are communicated with the total road of charging, the upper edge of charging by-path 22 is provided with the press strip 29 along the distribution of charging by-path, the bottom of material separating disc is provided with linear vibrator 21, material separating disc 20 tilt distribution, the discharge end of charging by-path 22 is positioned at material separating disc lower end, circular cushion chamber 24 is provided with between the total road of charging and charging by-path, the upper end of three tunnel charging by-paths is communicated with cushion chamber side respectively, cushion chamber 24 center is provided with moving block 25, circular passage 26 is formed between moving block and cushion chamber sidewall.
As shown in Figure 8, the sidewall of cushion chamber 24 is provided with rubber strip 240, and the circumference of moving block 25 is arranged with rubber sleeve 250, and the outside of rubber sleeve is evenly distributed with positive stop lug boss 251, and the position between adjacent two positive stop lug boss can only hold a microphone 4; The bottom of cushion chamber 24 is positioned at both sides, charging by-path upper end and is respectively equipped with elasticity positioning bead 27, elasticity positioning bead in the raw time, the ultimate range of the protrusion cushion chamber bottom surface of elasticity positioning bead is 0.5mm, and the length of charging by-path is the integral multiple of microphone diameter.When moving block rotates, microphone is between adjacent two positive stop lug boss, when turning to the charging aperture place of charging by-path, if the charging aperture place of feeding-passage is that empty (length of charging by-path is the integral multiple of microphone diameter, if microphone is not full in charging by-path, then at least can hold a complete microphone), so microphone can enter in this charging by-path under the vibration double action of the obstruction of elasticity positioning bead, linear vibrator; If the charging aperture place of charging by-path is full, so microphone from the top process of elasticity positioning bead, can enter the charging aperture place of next charging by-path, prevents microphone from dallying in circular passage, thus ensures stable, uniform feeding in each charging by-path.
As Fig. 2, shown in Fig. 7, testing agency 3 comprises matrix 30, sliding panel 31, both sides matrix 30 being positioned at sliding panel are provided with baffle plate 300, baffle plate 300 between be provided with two parallel sliding bars 310, sliding bar runs through sliding panel, the downside of sliding panel and the upper side of matrix are fitted, baffle plate is also provided with caging bolt 302, the front end of sliding panel is provided with three and detects breach 311 one to one with charging by-path, matrix 30 is positioned at detect immediately below breach and is provided with sound hole 301, a source of sound 9 is provided with bottom frame 1, a source of sound is communicated with sound hole one_to_one corresponding respectively by sound pipe 10, the discharging opening place end face of charging by-path 22 and sliding panel detect between the end face of breach place and there is gap, be provided with directly over sliding panel 31 and detect end finger 5, detection end finger middle part and sliding panel 31 are rotationally connected, the front end detecting end finger 5 is provided with detection head 50, detect between the rear end of end finger and sliding panel and be provided with stage clip 51, sliding panel is also provided with lift cylinder 6, lift cylinder is fixed on above sliding panel by Cylinder mount bracket 60, the axle head of lift cylinder is provided with horizontal struts 7, the both sides of Cylinder mount bracket 60 are provided with guide rail, the both sides of horizontal pressure foot are connected with guide rail by slide block, the blanking channel 11 through with matrix end face is provided with in matrix 30, the bottom of blanking channel is provided with two-way sorting mechanism, matrix 30 is also provided with the horizontal air cylinder 8 for driving sliding panel to slide.
As shown in Figure 9, the front end detecting end finger 5 extends to form contiguous block 500, and the outer end of contiguous block is provided with horizontal draw-in groove 501, contiguous block is also provided with the U-shaped breach 502 running through horizontal draw-in groove; Detection head 50 comprises chaining pin 503, chaining pin fixed head 504, and chaining pin fixed head snaps in after in horizontal draw-in groove from U-shaped indentation, there and passes through bolt-locking; Chaining pin 503 has two groups, totally four, and four chaining pins are vertically fixed on chaining pin fixed head, and the line of four chaining pins is in square, and two chaining pins at any diagonal angle form one group.
As shown in Figure 4, lift cylinder 6 shaft extension goes out, horizontal struts 7 moves down the rear end being pressed in and detecting end finger 5, detection head is upturned, horizontal air cylinder moves to position as shown in Figure 1, now, each detection breach is corresponding with sound hole, microphone in charging by-path enters and detects in breach, lift cylinder drives horizontal struts to rise, detect end finger under the effect of stage clip, the pcb board that two groups of chaining pins are pressed in microphone detects, on same detection head, as long as any one group of detection head detects DB value, during detection, the pressure of each detection head to microphone is constant, prevent from weighing microphone wounded, the rear horizontal pressure foot of detection declines to being pressed in and detects end finger rear end under the effect of lift cylinder, detection head is separated with microphone, horizontal air cylinder drives sliding panel to move to the position shown in Fig. 2, detect breach to align with blanking channel, bistrique after detection enters in blanking channel.
As shown in Figure 5 and Figure 6, lower end and the matrix bottom surface of blanking channel 11 are through, the sub-material passage 12 with blanking channel lower end cross connection is also provided with in matrix, slide damper 13 is provided with on the downside of the junction falling to passage and sub-material passage, slide damper drives horizontal slip by cylinder 14, the top that blanking channel 11 side is positioned at slide damper is provided with gas blow pipe 15, the two-way sorting mechanism described in sub-material passage, slide damper, gas blow pipe are formed; When slide damper stretch out, gas blow pipe blow time, microphone is blown in sub-material passage, when slide damper retraction, gas blow pipe stop blow time, microphone is discharged bottom blanking channel.Microphone is after detection indentation, there detects, different according to testing result (customer demand product, uncertain product), and slide damper, blowing nozzle action difference, last customer demand product are from blanking channel bottom dropped out, and uncertain product blow out from sub-material passage.
Therefore, the present invention has following beneficial effect: (1) multichannel charging, simultaneously detection, the multiple product of sorting, and the efficiency of separation is high; (2) feed for duration is stablized, not fracture, putty.

Claims (10)

1. a mini microphone efficient classifier, comprise frame, frame is provided with feeding mechanism, testing agency, it is characterized in that, described feeding mechanism involving vibrations dish, material separating disc, described material separating disc is provided with the total road of charging, the charging by-path that three tunnels are communicated with the total road of charging, the upper edge of described charging by-path is provided with the press strip along the distribution of charging by-path, the bottom of material separating disc is provided with linear vibrator, described testing agency comprises matrix, sliding panel, both sides matrix being positioned at sliding panel are provided with baffle plate, two parallel sliding bars are provided with between baffle plate, described sliding bar runs through sliding panel, the downside of described sliding panel and the upper side of matrix are fitted, the front end of described sliding panel is provided with three and detects breach, three are detected breach and aim at three tunnel charging by-paths respectively, matrix is positioned at detect immediately below breach and is provided with sound hole, detection end finger is provided with directly over described sliding panel, described detection end finger and sliding panel are rotationally connected, the front end detecting end finger is provided with detection head, detect between the rear end of end finger and sliding panel and be provided with stage clip, described sliding panel is also provided with lift cylinder, the axle head of lift cylinder is provided with horizontal struts, the blanking channel through with matrix end face is provided with in described matrix, the bottom of blanking channel is provided with two-way sorting mechanism, matrix is also provided with the horizontal air cylinder for driving sliding panel to slide, when horizontal air cylinder axle is in retraction, when stretching out two states, detect breach and lay respectively at sound hole, directly over blanking channel.
2. mini microphone efficient classifier according to claim 1, is characterized in that, described baffle plate is also provided with caging bolt.
3. mini microphone efficient classifier according to claim 1, is characterized in that, is provided with a source of sound bottom frame, and a source of sound is communicated with sound hole one_to_one corresponding respectively by sound pipe.
4. mini microphone efficient classifier according to claim 1, is characterized in that, the front end of described detection end finger extends to form contiguous block, and the outer end of contiguous block is provided with horizontal draw-in groove, contiguous block is also provided with the U-shaped breach running through horizontal draw-in groove; Described detection head comprises chaining pin, chaining pin fixed head, and described chaining pin fixed head snaps in after in horizontal draw-in groove from U-shaped indentation, there and passes through bolt-locking.
5. mini microphone efficient classifier according to claim 4, is characterized in that, described chaining pin has two groups, totally four, and four chaining pins are vertically fixed on chaining pin fixed head, and the line of four chaining pins is in square, and two chaining pins at any diagonal angle form one group.
6. mini microphone efficient classifier according to claim 1, it is characterized in that, lower end and the matrix bottom surface of described blanking channel are through, the sub-material passage with blanking channel lower end cross connection is also provided with in matrix, the described junction falling to passage and sub-material passage is provided with slide damper, described slide damper is slided by air cylinder driven, and the top that blanking channel side is positioned at slide damper is provided with gas blow pipe, the two-way sorting mechanism described in sub-material passage, slide damper, gas blow pipe are formed; When slide damper stretch out, gas blow pipe blow time, microphone is blown in sub-material passage, when slide damper retraction, gas blow pipe stop blow time, microphone is discharged bottom blanking channel.
7. the mini microphone efficient classifier according to claim 1 or 4 or 6, it is characterized in that, described material separating disc tilt distribution, the discharge end of charging by-path is positioned at material separating disc lower end, the discharging opening place end face of charging by-path and sliding panel detects between the end face of breach place and there is gap.
8. mini microphone efficient classifier according to claim 7, it is characterized in that, the total road of described charging and be provided with circular cushion chamber between charging by-path, the upper end of described charging by-path is communicated with cushion chamber side, the center of described cushion chamber is provided with moving block, forms circular passage between moving block and cushion chamber sidewall.
9. mini microphone efficient classifier according to claim 8, it is characterized in that, the sidewall of described cushion chamber is provided with rubber strip, the circumference of described moving block is arranged with rubber sleeve, the outside of described rubber sleeve is evenly distributed with positive stop lug boss, and the position between adjacent two positive stop lug boss can only hold a microphone.
10. mini microphone efficient classifier according to claim 8, it is characterized in that, the bottom of described cushion chamber is positioned at both sides, charging by-path upper end and is respectively equipped with elasticity positioning bead, elasticity positioning bead in the raw time, the ultimate range of the protrusion cushion chamber bottom surface of elasticity positioning bead is 0.3mm-0.6mm; The length of described charging by-path is the integral multiple of microphone diameter.
CN201510171735.5A 2015-04-13 2015-04-13 Mini microphone efficient classifier Expired - Fee Related CN104826813B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950096A (en) * 2017-12-21 2019-06-28 惠州市聚鼎电子有限公司 A kind of sorting tool for restoring annulus fuse of PPTC production

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CN201684732U (en) * 2010-04-09 2010-12-29 福建省德传电子科技有限公司 Fully automatic electret microphone tester
CN203862789U (en) * 2014-03-26 2014-10-08 杨泽民 Microphone pre-edge-curling mechanism
CN203972335U (en) * 2014-07-16 2014-12-03 苏州迪纳精密设备有限公司 A kind of rotating disc type microphone concurrent testing screening installation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050034303A (en) * 2003-10-09 2005-04-14 에버테크노 주식회사 Microphone auto-testing system
KR100900161B1 (en) * 2009-01-13 2009-06-02 에버테크노 주식회사 System and method for testing microphone
CN201684732U (en) * 2010-04-09 2010-12-29 福建省德传电子科技有限公司 Fully automatic electret microphone tester
CN101844137A (en) * 2010-05-26 2010-09-29 安徽捷迅光电技术有限公司 Color selector
CN203862789U (en) * 2014-03-26 2014-10-08 杨泽民 Microphone pre-edge-curling mechanism
CN203972335U (en) * 2014-07-16 2014-12-03 苏州迪纳精密设备有限公司 A kind of rotating disc type microphone concurrent testing screening installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950096A (en) * 2017-12-21 2019-06-28 惠州市聚鼎电子有限公司 A kind of sorting tool for restoring annulus fuse of PPTC production

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