JP4262705B2 - Sound input product sorting device - Google Patents

Description

The present invention relates to sorting apparatus acoustic input products, in particular to test a large amount of acoustic input product at high speed, to sorting apparatus acoustic input products that can perform classification work by test results.

  In various electronic products such as mobile phones, telephones, and digital cameras, small acoustic input products for voice input are used. Even if a small acoustic input product is a product produced on the same production line, the sensitivity changes due to minute differences such as the tension of the diaphragm and the amount of charge stored in the dielectric plate. Due to the difference in sensitivity, the sensitivity characteristics of the acoustic input products are not uniform and vary from product to product. Therefore, the assembled acoustic input products are tested and sorted according to products with the same sensitivity characteristics. It must be used as a required product part. In addition, defective products that do not satisfy the required performance must also be selected due to variables that may occur in the assembly process of the acoustic input product.

  However, according to the conventional part selection process, the operator applies a test sound pressure to each acoustic input product through manual work, checks the sensitivity characteristics with the naked eye through the result screen of a test device, etc., and determines whether the product is good or defective. After the determination, in the case of a non-defective product, it is generally classified again according to sensitivity. However, since this method is a repetitive simple operation, it is easy to induce an operator's mistake, and in the case of mass production, the labor cost for the sorting operator is inevitably increased, and the production cost is inevitable. There was a problem that the shipment of the product was overdue because the sorting operation was not performed.

The present invention has been made to solve the above problems, not only to automate sorting tasks acoustic input products, dropped slit, dropping Hall, and by coupling the like pushers, testing and sorting An object of the present invention is to provide a sound input product sorting device that not only automates the process but also allows the sorting operation to proceed quickly.

To achieve the above object, measures the sensitivity by applying the N acoustic input product to the test sound pressure simultaneously, selecting an acoustic input product I by the measurement result, the acoustic input products according to the present invention sorting apparatus, and N product supply line for supplying the acoustic input product, and N pusher slits arranged alternately with the product supply line, and N pusher provided movably along the pusher slit products and feed, the N provided corresponding to the position of the product supply line products pulling-groove and, N-number of dropped slits arranged alternately with the product pulling-groove corresponding to the position of the pusher slit having a Doo and reciprocable product transfer unit by a driving means, provided corresponding to the position of the dropped slit, a base with N sound pressure supply hole for applying a test sound pressure acoustic input product, Test sound pressure Comprising a product measuring section having N test probe for measuring the sensitivity of the applied acoustic input product, a drive means, consistent with product supply line and the product pulling-grooves, and the pusher slits and drop slit After the acoustic input product supplied from the product supply line at the first position where the two coincide with each other is drawn into the product introduction groove, the product at the second position where the product introduction groove coincides with the sound pressure supply hole and the pusher slit. The transfer unit is transferred .

As described above, sorting apparatus acoustic input product according to the present invention, the structure of the measurement unit and product insertion hole for product measurement, dropped for slit bets for product selection, flop Fischer was bound Since the sound input product is measured and sorted quickly and accurately by the efficient configuration, the process time required for the production of the sound input product is shortened, and a significant effect of preventing product defects is provided.

  The above and other objects and features and advantages of the present invention will become more apparent through the following detailed description in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 illustrates a coupled state of a product supply unit (10), a product transfer unit (20), a base (30), and a product measurement unit (40) of a sound input product sorting apparatus according to an embodiment of the present invention. . The acoustic input product sorting apparatus according to the present invention includes a product supply unit (10), a product transfer unit (20), a base (30), and a product measurement unit (40). The sound input product sorting apparatus according to the present invention performs a function of simultaneously providing test sound pressure to N sound input products (2) to measure sensitivity characteristics and classifying the products according to the result.

The product supply unit 10 includes N product supply lines 12 and N pusher slits 14 that are perpendicular to the product supply direction by a predetermined distance D1, as shown in FIGS. A pusher (16) that is spaced apart and arranged alternately and that proceeds in the product supply direction is installed in the pusher slit (14). The product supply line (12) of the product supply unit (10) is connected to a device such as a ball feeder that loads a large amount of sound input products (2) and sequentially supplies them, and continuously supplies the products. To play a role. Although the number of product supply lines 12 is 8 in FIG. 1, the number is not limited to this, and can be determined according to the needs of the user. The pusher (16) of the product supply unit (10) serves to move the acoustic input product (2) whose measurement has been completed and drop it into a drop hole (34) to be described later, and the bottom surface of the product supply unit (10). The pusher (16) can be configured to reciprocate along the pusher slit (14) by installing a cylinder (not shown).

Next, the base (30) has N sound pressure supply holes (32) for applying test sound pressure at the lower part of the sound input product (2), and a predetermined distance D2 behind the sound pressure supply hole (32). N dropping holes (34) formed so as to be separated from each other are installed at positions corresponding to the pusher slits (16).

  The sound pressure supply hole (32) plays a role of transmitting the test sound pressure provided from the speaker to the vibrating membrane of the sound input product (2) through N sound pressure supply tubes (not shown), respectively. . In order to measure the sensitivity of the acoustic input product (2), the intermediate frequency band of the test sound pressure is 1 kHz, the low frequency band is 100 to 1000 Hz, and the high frequency band is 1 to 10 kHz. Is preferably 94 dB. On the other hand, in order to maintain an accurate test sound pressure, it is more preferable to further include a standard microphone for actually measuring and correcting the test sound pressure applied from the speaker.

The dropping hole 34 is formed such that N dropping tubes 58 shown in FIG. 8 correspond to the lower portions, and the lower portion of the base 30 is passed through the dropping tubes 58. Are classified according to the measurement results. The size of the drop hole (34) is formed larger than the size of the sound input product (2) so that the sound input product (2) can pass therethrough.

Classifying unit is connected with the drop Hall (34) dropping tube that acoustic input product (2) is dropped (58), classified by whether the sensitivity and poor, a plurality of storage boxes arranged in annular ( 56) and a rotating unit (52) that rotates according to the measurement result and drops the acoustic input product into the corresponding storage box (56).

The product transfer unit (20) is formed at a position corresponding to the product supply line (12) of the product supply unit (10) from the original position, and N product introduction grooves (24 for drawing in the acoustic input product (2)). ) and, as the pusher product supply unit (10) (16) passes, is formed in the position corresponding to the pusher slit (14), test the base (dropping a hole formed in the 30) (34) The drop slits (22) for dropping the acoustic input product (2) that has been completed are arranged alternately by a predetermined distance D1 perpendicular to the product supply direction. On the other hand, the product transfer unit (20) has a movable cylinder (26) that can move left and right so that it can reciprocate by a fixed distance D3 in the product supply direction and by a fixed distance D1 perpendicular to the product supply direction. To do.

The product transfer unit (20) transfers N sound input products (2) transmitted from the product supply line (12) to the sound pressure supply hole (32) at the same time using the product introduction groove (24). serves to drop the drop Hall (34) acoustic input product measurement is complete (2) through a dropping slit (22).

  In the product measuring section (40), N test probes (42) are installed at positions corresponding to the sound pressure supply holes (32). When the acoustic input product (2) is positioned in the sound pressure supply hole (32), the product measuring unit (40) is lowered and the test pin installed on the test probe (42) is connected to the output terminal of the acoustic input device (2). Connected to and plays a role in measuring sensitivity characteristics.

  As a result of measuring the sensitivity characteristics, if the sound input product (2) is a non-defective product, it is subdivided into 38 dB, 40 dB, 42 dB, 44 dB, 46 dB, 48 dB, and 50 dB according to the sensitivity characteristics, and the sound input product (2) is defective. Products whose sensitivity is lower than the reference value, products whose sensitivity is higher than the reference value, products whose sensitivity in the low frequency band or sensitivity in the high frequency band is excluded from the reference value, products whose circuit is shot or opened, current It is preferable to subdivide and select products whose consumption is equal to or higher than a reference value. Even in the case of a defective product, since it is subdivided and selected according to each criterion, there is an advantage that it becomes easy to analyze the cause of the defect in the manufacturing process of the product.

2 to 7 illustrate operations of the product supply unit (10) and the product transfer unit (20) of the sound input product sorting device according to the embodiment of the present invention. As shown in FIG. 2, the product supply unit is aligned so that the product supply line (12) of the product supply unit (10) and the product introduction groove (24) of the product transfer unit (20) coincide with each other. line (12) acoustic input products (2) is sent to the product pulling-groove (24).

  Next, as shown in FIG. 3, the moving cylinder (26) of the product transfer unit (20) is moved by a predetermined distance D1 perpendicularly to the product supply direction, and the acoustic input product (2) is used as the base (30). It is located on the sound pressure supply hole (32) installed in

  When the sound input product (2) is located in the sound pressure supply hole (32), the product measuring section (40) is lowered and the test pin installed on the test probe (42) is connected to the output end of the sound input device (2). Connected, the speaker applies the test sound pressure to the sound pressure supply hole (32), and the measurement for the sound input product (2) is performed.

Next, as shown in FIG. 4, the cylinder load of the moving cylinder (26) contracts, the product transfer unit (20) is retracted by a predetermined distance D2, and the sound input product (2) is moved to the sound pressure supply hole ( 32) It remains on and is detached from the product entry groove (24).

Next, as shown in FIG. 5, after the moving cylinder (26) contracts the cylinder load and returns again by a predetermined distance D1 perpendicular to the product supply direction, as shown in FIG. The cylinder load is extended, and the product supply unit (10) and the product transfer unit (20) are coupled again as in the initial state. At this time, as shown in FIG. 6, the sound input product (2) is still located on the sound pressure supply hole (32) of the base (30), and at the same time, a drop slit ( 22).

Finally, as shown in FIG. 7, the pusher (16) of the product supply section (10) moves forward, and the acoustic input product (2) positioned on the sound pressure supply hole (42) is dropped into the drop hole. The acoustic input product (2) dropped into (34) is sorted into the corresponding storage box (56) according to the measurement result of the sensitivity characteristic through the dropping tube (58) and the rotating part (54).

  Incidentally, the preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art should be able to make various modifications, changes and additions within the spirit and scope of the present invention. Such modifications, changes and the like should be regarded as belonging to the following claims.

It is a block diagram of the measurement and classification apparatus which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is one of the operation | movement diagrams of the product transfer part which concerns on embodiment of this invention. It is a block diagram of the classification | category part which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Product supply part, 12 ... Product supply line, 14 ... Pusher slit, 20 ... Product transfer part, 22 ... Drop slit, 24 ... Product introduction groove, 30 ... Base, 32 ... Sound pressure supply hole, 34 ... Drop Hall, 40 ... product measuring section, 42 ... test probe.

Claims (8)

Measuring the sensitivity by applying the N acoustic input product to the test sound pressure at the same time, a sorting device for acoustic input product for selecting the acoustic input product I by the measurement result,
The acoustic input product of N product supply line for supplying, said product supply line and N pusher slits arranged alternately, and N pusher provided movably along said pusher slit Having a product supply unit ;
A and N products pulling-grooves provided in correspondence with the position of the product supply line, and N dropped slits arranged alternately with the product pulling-groove corresponding to the position of the pusher slit , A product transfer section that can be reciprocated by drive means ; and
Provided corresponding to the position of the dropped slit, a base with N sound pressure supply hole for applying a test sound pressure in the acoustic input product,
A product measuring unit having N test probes for measuring the sensitivity of the acoustic input product to which the test sound pressure is applied ,
In the driving means, the acoustic input product supplied from the product supply line at a first position where the product supply line and the product drawing groove coincide with each other and the pusher slit and the dropping slit coincide with each other. After the product is introduced into the product introduction groove, the product transfer unit is transferred to a second position where the product introduction groove coincides with the sound pressure supply hole and the pusher slit. apparatus. The drive means returns the product transfer section from the second position to the first position in a state where the acoustic input product is positioned in the sound pressure supply hole,
The pusher, the following sensitivity measurement by the product measuring section, wherein in advance to the dropped slit, 請 Motomeko 1 Symbol placement acoustic input of the acoustic input product you characterized by extruding from the sound pressure supply hole Product sorting device. The base is located behind the sound pressure supply hole when viewed from the pusher side, and the sound input product pushed out from the sound pressure supply hole by the pusher after application of the test sound pressure is directed to the classification unit. further sorting apparatus acoustic input products to that請 Motomeko 2 Symbol mounting comprising the N-number of dropped for holes that dropped Te. Wherein a speaker for applying the test sound pressure acoustic input products, standard you corrected by measuring the test sound pressure applied by the loudspeaker located in the sound pressure supply hole through the N sound pressure supply tube sorting device of acoustic input product according to any one claim of 請 Motomeko 1-3 you characterized by further comprising a microphone. Frequency of the test sound pressure is 1 kHz intermediate frequency band, low frequency band 100 to 1000 Hz, high frequency band is 1-10 kHz, the magnitude of the test sound pressure has a characteristic that it is 94dB sorting device of acoustic input product according to any one claim of 請 Motomeko 1-4 you. Determining the measurement results by the product measuring section, the selecting the acoustic input product and the molded product is good or defective, that further further comprising a sensitivity decision unit for selecting the sensitivity characteristic acoustic input products that are sorted as non-defective The apparatus for selecting an acoustic input product according to any one of claims 1 to 5 . The sensitivity decision unit, an acoustic input products that are sorted as non-defective, 38 dB by sensitivity, 40 dB, 42 dB, 44 dB, 46 dB, 48 dB, sorted and divided into 50 dB, the sound input products that are sorted as defective, lower sensitivity than the reference value products, the sensitivity is higher than the reference value products, product sensitivity sensitivity or high frequency band of the low frequency band is out of the reference value, the product circuit is shot or open, and current consumption There 請 Motomeko 6 Symbol mounting of the sorting device you characterized by selecting segmented by the reference value or more products. The classification unit, the a drop hole for the concatenated dropped tube, a housing part for housing and dividing the acoustic input product for each determination result by the sensitivity decision unit in the ring shape, the by the sensitivity decision unit depending on the determination result by rotating the dropping end of the drop tube, claim 6 or 7 SL placing acoustic characterized by comprising housing portion further a rotating part makes projecting under the corresponding to acoustic input product Sorting device for input products.

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