CN101141837A

CN101141837A - Sound box ring screen cloth welding method

Info

Publication number: CN101141837A
Application number: CNA2007100309903A
Authority: CN
Inventors: 高其文; 赵相军; 尹伟; 黄钊锋
Original assignee: GUANGZHOU GUOGUANG ELECTRIC CO Ltd; Guoguang Electric Co Ltd
Current assignee: GUANGZHOU GUOGUANG ELECTRIC CO Ltd; Guoguang Electric Co Ltd
Priority date: 2007-10-22
Filing date: 2007-10-22
Publication date: 2008-03-12
Anticipated expiration: 2027-10-22
Also published as: CN101141837B

Abstract

The present invention relates to a welding method of a sound box ring netting, the method of the present invention comprises the following procedures firstly, a netting (1) cut out is doubled back, a piece of plastic (3) is arranged between a netting interface (5) and a base seat (2), or in the middle location clamped on the netting interface (5); secondly, a high temperature thermal pressing cutter model is used to press the netting interface (5) arranged on the base seat (2) and the plastic (3), to interfuse the netting interface (5) and the plastic (3) into a composite interface. The main advantages of the method are that the netting weld-throat section is solid, the tension is good, the netting interface is not easy to be burst when the ring netting is suited in the sound box, and the cost of the welding material used and the equipment is low and the welding material used and the equipment easy to be processed.

Description

The welding method of sound box ring screen cloth

Technical field

The invention belongs to the process that a kind of audio amplifier is produced, particularly a kind of welding method of sound box ring screen cloth.

Background technology

The audio amplifier of band shape screen cloth (being that four faces of audio amplifier all are surrounded by ring screen cloth) mainly is to be used for multimedia loudspeaker box on the market at present, because the audio amplifier screen cloth mainly is the synthetic nonwoven fabrics of plastics, the method of its joint weld is mainly to be with ultrasonic spot welding connection (reference " supersonic welding access interface design guidelines " 2.4), it is the high pressure that produces 15KHZ-40KHZ by generator, high-frequency signal, pass through energy converting system, is conversion of signals high-frequency mechanical vibration, be added on the interface of screen cloth, by screen cloth interface surface and inherent intermolecular friction the temperature of interface is raise, when temperature reaches the fusing point of this screen cloth itself, working interface is dissolved rapidly, then be filled in the space between interface, when vibrations stop, the screen cloth interface is cooling shaping under certain pressure simultaneously, the welding of just reaching the screen cloth interface.With ultrasonic bonding is to rely on the heat of screen cloth self to melt to weld, and still, ring screen cloth is being drawn back, and when tightly being enclosed within the audio amplifier outside, the screen cloth interface splits easily, and needs to use supersonic welder, has increased cost.

Summary of the invention

The object of the invention is to solve the problem that existing technology exists, and a kind of welding method of sound box ring screen cloth is provided, and this method only need just can make the screen cloth interface firmly, carefully and neatly with common hot-press equipment, and simple to operate, and cost of manufacture is low.

The method that the present invention adopts has comprised the following step:

(A) cutting out good screen cloth (1) doubling, between screen cloth interface (5) and base (2), or be clipped in the centre position of screen cloth interface (5), put a plastic strip (3);

(B) press to the screen cloth interface (5) and plastic skin (3) that is put on the base (2) with the hot pressing cutting die (4) of high temperature, make screen cloth interface (5) and plastic skin (3) be fused into a compound interface.

The main advantage of this method is that the screen cloth soldering opening is firm, and pull resistance is good, with ring screen cloth when being inserted in audio amplifier, the screen cloth interface is not easy to break, the low and easy processing of used welding material and equipment cost.

Description of drawings

In conjunction with the accompanying drawings, the inventive method is described further,

Fig. 1 is the vertical section structural map before first embodiment hot pressing of the inventive method.

Fig. 2 is the vertical section structural map in first embodiment hot pressing of the inventive method.

Fig. 3 is the vertical section structural map before second embodiment hot pressing of the inventive method.

Fig. 4 is the vertical section structural map in second embodiment hot pressing of the inventive method.

Fig. 5 is the vertical section structural map of the screen cloth after the hot pressing and base among Fig. 2 and Fig. 4.

Fig. 6 is the vertical section structural map after the screen cloth of Fig. 5 overturns.

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6,1. screen cloth; 2. base; 3. plastic skin; 4 hot pressing cutting dies; 5 screen cloth interfaces.

Embodiment

Among the embodiment shown in Figure 1,, between screen cloth interface (5) and base (2), put a plastic strip (3) cutting out good screen cloth (1) doubling; Among Fig. 2, press to the screen cloth interface (5) and plastic skin (3) that is put on the base (2) with the hot pressing cutting die (4) of high temperature, the time of hot pressing is 3-5 second, and plastic skin (3) is dissolved in the screen cloth interface (5).

Among the embodiment shown in Figure 3, cutting out good screen cloth (1) doubling, the position intermediate in screen cloth interface (5) is put into a plastic strip (3); Among Fig. 4, press to the screen cloth interface (5) and plastic skin (3) that is put on the base (2) with the hot pressing cutting die (4) of high temperature, the time of hot pressing is 3-5 second, and plastic skin (3) is dissolved in the screen cloth interface (5).

Among Fig. 5, screen cloth interface (5) and plastic skin (3) are removed hot pressing cutting die (4) after hot pressing, and screen cloth interface (5) and plastic skin (3) are fused into a compound interface.

Among Fig. 6, after the temperature for the treatment of screen cloth interface (5) drops to normal temperature, with screen cloth (1) turn, become the screen cloth of a ring-type, be prepared for being enclosed within the audio amplifier outside.

The advantage of the method is that the screen cloth soldering opening is firm, and pull resistance is good, with annular screen cloth when being inserted in audio amplifier, The screen cloth interface is firm, the low and easy processing of used welding material cost.

Claims

1. the welding method of an audio amplifier ring type shape screen cloth, this method comprises the following steps:

(A) cutting out good screen cloth (1) doubling, between screen cloth interface (5) and base (2), or be clipped in the position intermediate of screen cloth interface (5), put a plastic skin (3).

2. welding method that realizes the described sound box ring screen cloth of claim 1, it is characterized in that: described plastic strip, material are a kind of among PVC (polyvinyl chloride), PE (polyethylene), PP (polypropylene), PS (polystyrene), the ABS (modified polystyrene).

3. welding method that realizes the described sound box ring screen cloth of claim 1 is characterized in that: described elevated temperature heat push type broach mould (4), its temperature are the interval temperature of plastic skin (3) fusing.

4. welding method that realizes the described sound box ring screen cloth of claim 1, it is characterized in that: come hot-pressing plastic bar (3), screen cloth interface (5) with hot pressing cutting die (4) and base (2), its hot pressing time is between 3 to 5 seconds.