WO2006137445A1

WO2006137445A1 - Production equipment for loud speaker magnetic circuit

Info

Publication number: WO2006137445A1
Application number: PCT/JP2006/312424
Authority: WO
Inventors: Tatsuya Nishimoto
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2005-06-22
Filing date: 2006-06-21
Publication date: 2006-12-28
Also published as: CN101189911B; JP2007005993A; EP1881739A1; CN101189911A; EP1881739A4

Abstract

In production equipment, a first production block (101) for producing first magnetic circuits and a second production block (102) for producing second magnetic circuits are symmetrically arranged, and a third production block (103) is further provided for connecting the first magnetic circuits with the second magnetic circuits. In such production equipment, high productivity and stable high quality are ensured for producing a loud speaker magnetic circuit having two or more magnets.

Description

Specification

Production equipment for magnetic circuits for speakers

Technical field

[0001] The present invention relates to a production facility for manufacturing a magnetic circuit for a speaker used in various audio devices.

Background art

FIG. 7 shows a layout diagram of a conventional production facility for a speaker magnetic circuit having two or more magnets in particular.

As shown in FIG. 7, the conventional production equipment for producing this kind of speaker magnetic circuit includes a production equipment 100 for producing a first magnetic circuit, and a production equipment 200 for producing a second magnetic circuit. And a production facility 300 that combines the first magnetic circuit and the second magnetic circuit, which requires a total of three production facilities.

[0004] A production line 100 that produces a first magnetic circuit composed of a yoke, a first magnet, and a first plate has a conveyor line that is a production facility for a normal speaker magnetic circuit. It is used. However, the belt conveyor line is not used in the production facility 200 that produces the second magnetic circuit and the production facility 300 that combines the first and second magnetic circuits.

[0005] In other words, in the past, since the number of speakers constituting a magnetic circuit having two or more magnets was small, there was no extra capital investment, and the second magnetic circuit or the first and second The coupling of magnetic circuits was produced manually without using a conveyor line.

[0006] However, in recent years, there has been a strong demand for downsizing, light weight, and improvement in sound pressure level from the field, and a speaker having a magnetic circuit having two or more magnets is required. It is coming. In recent years, however, the number of speakers of this type has increased explosively in response to the tailwinds for the global environment.

[0007] As prior art document information relating to the invention of this application, for example, Japanese Patent Application Laid-Open No. 2004-15502 is known. [0008] When producing a speaker having a magnetic circuit having two or more magnets using the above-described conventional speaker magnetic circuit production facility, a first magnetic circuit is produced using a belt conveyor. The production efficiency of the production facility 100 is good. However, since the production facility 200 that produces the second magnetic circuit and the production facility 300 that combines the first and second magnetic circuits are produced manually, a large number of people are required. Productivity is low.

[0009] Further, in the conventional production equipment, it is necessary to accumulate work in progress for each drying step in the production step. In addition, since the in-process product is taken in and out and the dry product is transported each time, productivity is hindered by the removal work of dust adhering to the in-process product and the increase in lead time due to the retention of the in-process product.

[0010] In addition, the capacity of the conventional production equipment depends on the human ability of the personnel who manufacture the magnetic circuit for the speaker. Therefore, the production capacity varies and the production capacity is unstable. Disclosure of the invention

[0011] The present invention solves the above-described problems and provides a production facility for a speaker magnetic circuit capable of ensuring high productivity and stable quality.

[0012] In order to solve the above problems, the present invention provides a production facility for a speaker magnetic circuit having two or more magnets, the yoke, a first magnet coupled to the yoke, Consists of a first production block that produces a first magnetic circuit composed of a first plate coupled to a magnet, a second magnet, and a second plate coupled to the second magnet And a second production block for producing a second magnetic circuit to be produced.

[0013] The present invention further includes a third production block that couples the first magnetic circuit produced in the first production block and the second magnetic circuit produced in the second production block. This is a production facility for magnetic circuits for speakers.

[0014] As described above, according to the present invention, the production facility for producing the first magnetic circuit and the second magnetic circuit is configured to be capable of integrated production using a belt conveyor.

, Can ensure stable quality.

[0015] Furthermore, since the production facility that couples the first magnetic circuit and the second magnetic circuit can be integratedly manufactured, the productivity of the magnetic circuit is further increased, and stable quality is ensured. It can be done.

Brief Description of Drawings

FIG. 1 is a layout diagram of a production facility for a speaker magnetic circuit according to Embodiment 1 of the present invention.

FIG. 2 is a plan view of a production facility for the speaker magnetic circuit according to Embodiment 1 of the present invention.

FIG. 3 is a first production block assembling process diagram according to the first embodiment of the present invention.

FIG. 4 is a second production block assembling process diagram according to the first embodiment of the present invention.

FIG. 5 is a third production block assembling process diagram according to the first embodiment of the present invention.

FIG. 6 is a structural cross-sectional view of the speaker magnetic circuit according to the first embodiment of the present invention.

FIG. 7 is a layout diagram of a conventional production facility for magnetic circuits for speakers.

Explanation of symbols

[0017] 1, 28 Assembly / conveying jig cleaning device

2 Copper cap feeder

3 Adhesive applicator

4, 31 Plate feeder

5, 12, 30, 41 Adhesive applicator

6 Magnet misalignment prevention guide insertion device

7, 29 Magnet feeder

8. 14, 32 Pressurizing device

9. 15, 33, 43 Drying equipment

10 Magnet deviation prevention guide take-out device

11 Adhesion confirmation device

13 Yoke feeder Magnet and yoke adhesion confirmation device

, 34 Magnetizer

, 38 Magnetized coil cooling system

, 35 Magnetization check device

, 37 Magnetized power supply

, 39 Unloader

First magnetic circuit input device

1st assembly and transfer jig return conveyor 1 Copper cap loading conveyor 1

, 46 Plate loading conveyor

, 47 Magnet loading conveyor

York loading conveyor

Second assembly and transfer jig return conveyor Second magnetic circuit loading device

Bonding device for first magnetic circuit and second magnetic circuit Bonding confirmation device for first magnetic circuit and second magnetic circuit Finished product take-out device

, 49 workers

Copper cap

First plate

Second plate

Magnet misalignment prevention guide

First magnet

Second magnet

York

First magnetic circuit finished product

, 61 Assembly and transfer jig

Second magnetic circuit finished product 60 Final finished product

101 First production block

102 Second production block

103 Third production block

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0019] (Embodiment 1)

Hereinafter, the speaker magnetic circuit production facility according to the present invention will be described using the first embodiment.

[0020] A first embodiment of a speaker magnetic circuit production facility according to the present invention will be described with reference to Figs.

FIG. 1 is a layout diagram of production equipment for a speaker magnetic circuit according to Embodiment 1 of the present invention. In FIG. 1, a step of manufacturing the first magnetic circuit is made into a block, and a first production block 101 is produced that produces the first magnetic circuit. The step of manufacturing the second magnetic circuit is also made into a block, and the second production block 102 is produced that produces the second magnetic circuit. A third production block 103 is further provided for docking each produced first magnetic circuit and second magnetic circuit. Then, by combining three online automated production facilities, the production steps for magnetic circuits with two or more magnets will be integrated into production facilities.

[0022] Of course, the production steps of the first magnetic circuit and the second magnetic circuit may be blocked to provide a production facility capable of consistent production.

[0023] Here, the production block 101 for producing the first magnetic circuit and the production block 102 for producing the second magnetic circuit are arranged symmetrically.

[0024] With such a configuration, the entire production facility can be reduced in size and made compact. In addition, since the production of the first magnetic circuit and the production of the second magnetic circuit can be performed simultaneously in parallel, production efficiency can be improved and personnel can be reduced.

[0025] Hereinafter, production of a magnetic circuit having two or more magnets using this production facility will be described. FIG. 2 is a plan view of the production facility for the speaker magnetic circuit according to Embodiment 1 of the present invention.

Hereinafter, the configuration of the production facility will be described.

[0028] As shown in FIG. 2, the production facility of the first magnetic circuit is blocked, and a material supply device, an adhesive application device 5, a pressurization device 8, 14 and a drying device 9, 15 are provided, and further adhesion confirmation As a production block with automated equipment equipped with device 11 and magnetizing device 17!

[0029] The gap formation between the yoke and the plate is an equipment configuration that can ensure stable quality by using a jig that also serves as the conveying jig for the first magnetic circuit assembly.

[0030] With such a configuration, a gap gauge alone is not necessary, and low cost can be achieved. In addition, since the gap forming step is a step that doubles as the conveying step, production efficiency can be improved.

[0031] The production facility for the second magnetic circuit is arranged symmetrically with the production facility for the first magnetic circuit to form a block. As a production block with automated equipment equipped with a magnetizing device 34!

[0032] Then, as a third block, production by an automated equipment including an adhesive application device 41, a first magnetic circuit and second magnetic circuit coupling device 42, a drying device 43, and an adhesion confirmation device 44 is provided. As a block.

[0033] A consistent production can be performed by docking the three blocks. In addition, the first magnetic circuit production facility and the second magnetic circuit production facility are arranged symmetrically. By concentrating the material input at the top and concentrating the removal of the finished product at the back, it is possible to provide a stable production facility with a minimum of personnel and extremely high production efficiency. Furthermore, by installing the magnetizing devices 17 and 34 in the production facility, all can be automatically produced online, and productivity can be greatly improved.

Next, the production process will be described.

FIG. 3 is a first production block assembly process diagram according to Embodiment 1 of the present invention.

FIG. 4 is a second production block assembly process diagram according to Embodiment 1 of the present invention. FIG. 5 is a third production block assembly process diagram according to Embodiment 1 of the present invention.

[0036] First, the material of the first magnetic circuit and the second magnetic circuit is produced by the worker 48 in the first and second production. Material is put into each material supply conveyor 24, 25, 26, 27, 46, 47 of each block.

[0037] The production process of the first production block 101 is as follows.

[0038] After assembling and conveying jig cleaning device 1 each time air cleaning, it is sent to the next step. Then, the copper cap 50 fed from the copper cap feeding conveyor 24 is supplied to the assembly / conveying jig 56 by the copper cap feeding device 2 and sent to the next step.

[0039] Next, an adhesive is applied to the copper cap 50 with the adhesive applicator 3, and sent to the next step. Further, the first plate 51 loaded from the plate loading conveyor 25 is supplied to the assembly / conveying jig 56 by the plate supply device 4 and sent to the next step.

Next, an adhesive is applied to the first plate 51 by the adhesive application device 5 and sent to the next step.

Then, the magnet misalignment prevention guide insertion device 6 is inserted into the assembly / conveying jig 56 by the magnet misalignment prevention guide 52 and sent to the next step.

[0041] Further, the first magnet 53 input from the magnet input conveyor 26 is supplied to the assembling / conveying jig 56 by the magnet supply device 7 and sent to the next step. Caro pressure is applied with the next pressurizing device 8. Then, it is sent to the drying apparatus 9 in the next step, and is taken out after drying for about 9 minutes.

[0042] The assembly / conveying jig 56 taken out from the drying device 9 is taken out by the magnet misalignment prevention guide take-out device 10 and sent to the next step. The first magnet 53 and the first plate 5

Check with adhesion confirmation device 11 of 1 and send to the next step.

Next, an adhesive is applied to the first magnet 53 by the adhesive application device 12 and sent to the next step. Then, the yoke 54 loaded from the yoke loading conveyor 27 is supplied to the assembling / conveying jig 56 by the yoke feeding device 13 and sent to the next step. Further, pressurization is performed by the next pressurizing device 14. Then, it is sent to the drying device 15 of the next step, and is taken out after drying for about 9 minutes.

[0044] The assembly / conveying jig 56 taken out from the drying device 15 is checked by the adhesion confirmation device 16 between the yoke and the magnet and sent to the next step. Then, it is magnetized by the magnetizing device 17. Thereafter, the first magnetic circuit finished product 55 is obtained by confirming with the magnetization presence confirmation device 19. These steps become the first production block 101.

[0045] The production process of the second production block 102 is as follows.

[0046] After assembling and conveying jig cleaning device 28 each time air cleaning, it is sent to the next step. And ma The second magnet 57 fed from the gnet feeding conveyor 47 is replaced with the magnet feeding device 2

9 is supplied to the assembly and conveyance jig 61 and sent to the next step.

Next, an adhesive is applied to the second magnet 57 by the adhesive application device 30 and sent to the next step. Then, the second plate 58 fed from the plate loading conveyor 46 is supplied to the assembling / conveying jig 61 by the plate feeding device 31 and sent to the next step. Pressurize with the next pressurizer 32. Then, it is sent to the drying device 33 in the next step, and is taken out after drying for about 9 minutes.

The assembling and conveying jig 61 taken out from the drying device 33 is magnetized by the magnetizing device 34. After that, the second magnetic circuit finished product 59 is obtained by confirming with the magnetization confirmation device 35. These steps become the second production block 102.

[0049] The production process of the third production block 103 is as follows.

[0050] The first magnetic circuit produced in the first production block 101 is taken out by the operator 49.

It is taken out from 21 and supplied to the conveying jig of the first magnetic circuit loading device 22.

[0051] The second magnetic circuit produced in the second production block 102 is taken out by the operator 49 from the take-out device 39 and supplied to the transport jig of the second magnetic circuit throw-in device 40.

[0052] Then, the first magnetic circuit input by the first magnetic circuit input device 22 is conveyed by the conveying jig, applied to the first magnetic circuit by the adhesive application device 41, and then to the next step. send.

[0053] Furthermore, the first magnetic circuit and the second magnetic circuit coupling device 42 couples the second magnetic circuit supplied by the operator 49 and the first magnetic circuit coated with an adhesive, It is sent to the drying device 43 of the next step and taken out after drying for about 9 minutes.

[0054] The conveying jig taken out from the drying device 43 is checked by the first magnetic circuit and second magnetic circuit attachment confirmation device 44, and the final product removal device 45 receives the final finished product 60 from the operator 49. It is taken out by.

FIG. 6 is a structural sectional view of final finished product 60 of the speaker magnetic circuit according to Embodiment 1 of the present invention. The first magnetic circuit finished product 55 includes a copper cap 50, a first plate 51, a first magnet 53, and a yoke 54. The second magnetic circuit finished product 59 includes a second plate 58 and a second magnet 57. The first magnetic circuit finished product 55 and the second magnetic circuit finished product 59 are combined to produce the final finished product 60. [0056] Through the above steps, a production facility for producing a speaker magnetic circuit having two or more magnets is configured as a production facility capable of integrated production. Therefore, productivity can be increased and stable quality can be ensured.

[0057] Furthermore, this production facility can reduce the number of personnel and greatly reduce the cost.

Industrial applicability

The speaker magnetic circuit production facility according to the present invention is useful for application to a production facility for a magnetic circuit for a spin force used in various audio equipment.

Claims

The scope of the claims

[1] A speaker magnetic circuit production facility having two or more magnets,

A first production block for producing a first magnetic circuit;

A second production block for producing a second magnetic circuit;

The first magnetic circuit includes:

York,

A first magnet coupled to the yoke;

A first plate coupled to the first magnet,

The second magnetic circuit is:

A second magnet,

A speaker magnetic circuit production facility, comprising: a second plate coupled to the second magnet.

[2] It is further provided with a third production block for coupling the first magnetic circuit produced in the first production block and the second magnetic circuit produced in the second production block. Characterize

2. A production facility for a magnetic circuit for a speaker according to claim 1.

3. The speaker magnetic circuit production facility according to claim 1, wherein the first production block and the second production block are arranged symmetrically.

[4] The gap between the yoke and the first plate is formed by a jig that serves as both a magnetic circuit assembly conveyance jig and a gear formation jig.

5. The speaker magnetic circuit production facility according to claim 1, wherein the first production block and the second production block are each provided with a magnetizing device.