TWM556987U - Cutting mold structure for loudspeaker membrane - Google Patents

Abstract

A cutting die structure for a horn vibrating piece, comprising: a first die having a cutting surface, wherein the cutting surface is provided with two cutting portions, and the cutting portions are recessed with an opening, The cutting portions are spaced apart by a spacing, and a pressing area is formed on the cutting surface between the cutting portions; and a second mold having a positioning surface corresponding to the cutting surface, the positioning surface is The recess is provided with a protective groove corresponding to the opening; wherein the positioning surface is used for positioning at least one substrate having a wire, and the wire is located in the protection groove, when the first mold is opposite to the substrate When the cutting is performed, the opening and the protection groove are used to prevent the cutting portion from cutting the wire; thereby, the present invention has the function of preventing the cutting damage of the substrate having the wire during the process and protecting the wire structure. Thereby, the production yield can be improved.

Description

Cutting die structure of horn vibrating piece

The creation department is related to a mold structure, in particular to a cutting mold structure of a horn vibrating piece.

Press, the general speaker includes the woofer, the midrange unit, and the tweeter. These three units are responsible for different frequencies. Most speakers work on the same principle. Like a typical moving coil horn, an electromagnetic field is generated when current flows through the wire to the voice coil. Since this electromagnetic field is at right angles to the magnetic field of the permanent magnet on the horn, this forces the movable coil to be subjected to motion within the gap. The mechanical force generated by this movement causes the paper tray attached to the voice coil to vibrate vertically, up and down, thereby vibrating the air, transmitting audio to the human ear, achieving the purpose of sound restoration for listening, and realizing electrical energy to sound energy. Conversion.

However, since the damper (also known as the elastic wave) in the horn is connected to the voice coil, and the main function of the vibrating piece is used to hang the voice coil and the drum paper, the structure is mostly a plurality of concentric circles and the cross section is The wavy shape can support the voice coil and the drum paper by the vibrating piece. Therefore, the vibrating piece can directly affect the amplitude of the drum paper and affect the sound quality of the horn.

In addition, the current wire vibrating piece comprises a body and a plurality of wires, and is fixedly coupled to the body through at least one wire, and one end of the wire is connected to the voice coil, and the other end is connected to the input terminal. The conventionally used shaped wire vibrating piece mainly uses cotton cloth as a basic material, and the cotton cloth is dipped in a liquid synthetic resin, so that the fiber of the cotton cloth absorbs the synthetic resin, and the cotton cloth absorbing the synthetic resin is further dried and hardened. It is heated, pressurized, and cut to form a wire vibrating piece having annular corrugations on its surface.

Wherein, in the process of processing, after the heating and pressure forming, the resin-containing cotton fabric is formed with a circular forming block, and then the cotton cloth is cut through a set of cutting dies, but conventionally Cutting the mold often causes damage to the wire, or cuts the wire; therefore, when the wire vibrating piece is used for a long period of time, the damage caused by the cutting will cause the whole wire to be deformed, and even In the case of wire breakage, if the wire segment is not cut, the horn vibrating piece is installed inside the horn, the wire cannot be connected to the input terminal, and the horn cannot operate. After the above cutting process, the defect rate is high, and the resulting defective product causes a problem of excessive waste, thereby greatly increasing the manufacturing cost.

Furthermore, when the wire vibrating piece with damage is installed in the horn operation, not only will the sound quality be affected, but also the wire vibrating piece will be used for a long time, which will make the damage more serious, thereby shortening the life of the horn. The problem.

Therefore, after observing the above-mentioned missing, the creator of the case believes that the mold structure of the wire vibrating piece of the conventional speaker still needs further improvement, and the creation of this creation is not found.

The main purpose of the present invention is to provide a cutting die structure for a horn vibrating piece, which can prevent the cutting damage of the substrate with the wire in the process and protect the wire structure, thereby improving the production yield and effectively reducing Waste generated by defective products and reduced process costs.

In order to achieve the above object, the cutting die structure of the horn vibrating piece provided by the present invention comprises: a first die having a cutting surface, wherein the cutting surface is provided with two cutting portions, and the cutting surface is provided with two cutting portions. The cutting portion is recessed with an opening, the cutting portions are separated by a spacing, and a pressing area is formed between the cutting portions on the cutting surface; and a second mold is corresponding to the cutting surface The utility model has a positioning surface, and the positioning surface is concavely provided with a protection groove, and the protection groove and the opening correspond to each other.

Preferably, the cutting face is to be protected with at least all grooves, and the cutting groove is connected to the opening, and the cutting groove and the protection groove form a cut-proof space.

Preferably, the substrate has a wave portion, the central portion of the wave portion has a circular block, and the wire is disposed on the wave portion, and one end of the wire protrudes from the wave portion The wavy portion and the other end protrude to the circular block.

Preferably, the first mold is provided with a through hole corresponding to the circular block, and the pressing area is convexly provided with a undulating pressing portion corresponding to the wave portion.

Preferably, the positioning surface of the second mold is convexly disposed with a wavy positioning portion corresponding to the pressing portion, and a central portion of the positioning surface is formed with a circular shape corresponding to the circular block.

Preferably, the second mold has a fixing block and a displacement block, and the fixing block has a receiving groove corresponding to the outer peripheral side of the first die, and the central position of the receiving groove corresponds to the through hole. a cylindrical portion is convexly disposed, and the positioning portion is disposed on one side of the displacement block, and the displacement block is provided with a through hole, and the cylindrical system is inserted into the through hole, and the displacement block is displaceable relative to the cylinder .

Preferably, the lower side of the displacement block is provided with an elastic support structure for axial displacement of the displacement block relative to the fixed block.

Preferably, the displacement block is provided with the positioning portion, and the displacement block is provided with the protection groove, and the plane is the top surface of the cylinder.

Preferably, a protrusion is disposed on the outer side of the displacement block, and one end of the protection groove is located on a top side of the protrusion, and an outer peripheral side of the first mold is convexly provided with a pressing block corresponding to the protrusion. One end of the channel is disposed on the bottom side of the pressing block.

Preferably, the wave portion of the substrate is selected from one of a circular region shape, a rectangular region shape, an elliptical region shape, and a polygonal region shape.

The cutting die structure of the horn vibrating piece provided by the present invention, wherein the positioning surface is used for positioning at least one substrate provided with a wire, and the wire is located in the protection groove, when the first mold is used for the substrate When cutting, the opening and the protection groove are used to prevent the cutting portion from cutting the wire; thereby, the present invention has the function of preventing the cutting damage of the substrate having the wire during the process and protecting the wire structure, thereby It can improve the production yield, effectively reduce the waste generated by defective products, and reduce the cost of the process.

Please refer to FIG. 1 and FIG. 2 , together with FIG. 3 and FIG. 4 , which are exploded perspective views, a first mold 10 perspective view and a second mold 20 perspective view of a preferred embodiment of the present invention. The cut mold structure 100 of the sheet, the cut mold structure 100 includes:

A first mold 10 having a cutting surface 11 is provided with two cutting portions 12, and the cutting portions 12 are respectively recessed with an opening 121, and the cutting portions 12 are separated by a spacing. And a pressing area 111 is formed on the cutting surface 11 between the cutting portions 12, the pressing area 111 is in the shape of a circular ring, and the first mold 10 is provided with a pass corresponding to the central position. The hole 113 and the pressing portion 111 are convexly provided with a undulating pressing portion 112. In the embodiment, the cutting surface 11 protects the groove 22 from the protective groove 22 and is provided with a second cutting groove 13 . The gully 13 is connected to the opening 121, and the gullies 13 pass through the respective peaks of the pressing portions 112. In addition, a pressing block 14 is protruded from the outer peripheral side of the first die 10, and the gullies are formed. One end of the 13 series is provided on the bottom side of the pressing block 14.

A second mold 20 has a positioning surface 21 corresponding to the cutting surface 11 , and the positioning surface 21 is recessed with a protection groove 22 , and the protection groove 22 corresponds to the cutting grooves 13 and the openings 121 . In this embodiment, the positioning surface 21 of the second mold 20 is formed with a wavy positioning portion 23 corresponding to the pressing portion 111, and a central shape is formed at the central position of the positioning surface 21. flat.

As shown in FIG. 3 and FIG. 4 , the second mold 20 has a fixing block 24 and a displacement block 25 , and the fixing block 24 has a receiving groove 241 corresponding to the outer peripheral side of the first mold 10 , and A positioning portion 23 is disposed on one side of the displacement block 25, and a through hole 251 is formed in the displacement block 25 at a central position of the receiving groove 241. The cylinder 242 is inserted into the through hole 251, and the displacement block 25 is displaceable relative to the cylinder 242. The outer side of the displacement block 25 is convexly provided with a protrusion 26, and one end of the protection groove 22 is located at the protrusion. The top side of the second block; the displacement block 25 is provided with the positioning portion 23, and the displacement block 25 is provided with the protection groove 22, and the plane is the top surface of the cylinder 242; There is an elastic support structure (not shown) for axial displacement of the displacement block 25 relative to the fixed block 24.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Please refer to FIG. 3 and FIG. 4 , together with FIG. 5 , FIG. 6 and FIG. 7 , which are a perspective view of the second mold 20 , a schematic diagram of the process state, a schematic diagram of the cutting state and a horn vibrating piece. Stereo picture. When preparing the cutting state, as shown in FIG. 5, the first mold 10 and the second mold 20 of the present invention have a substrate 200, and the substrate 200 is subjected to a hot press forming process, so the base is The material 200 has a wave portion 201 having a circular block at a central position of the wave portion 201. Further, two wires 300 are disposed on the wave portion 201, and one end of the wires 300 protrudes therefrom. The wave portion 201 and the other end protrude to the circular block.

In the cutting state, as shown in FIG. 3, FIG. 4 and FIG. 6, the positioning surface 21 can be used to position the substrate 200, and the wire 300 is placed in the protection groove 22, so when the first mold When the substrate 200 is cut, the first mold 10 is pressed against the second mold 20, and at this time, the cutting portions 12 cut the substrate 200, and the first mold 10 transmits the same The through hole 113 is arranged to enable the first mold 10 to be pressed against the second mold 20, and the second mold 20 is pressed against the elastic support structure (not shown), thereby allowing the first mold 10 and the first mold 10 The displacement block 25 of the second mold 20 is displaced downward relative to the fixed block 24. The displacement is performed by cutting the substrate 200 into a horn vibrating piece 400 having a wire 300. The horn vibrating piece 400 is as shown in FIG. .

It should be further noted that when the first mold 10 is pressed against the second mold 20, the cutting groove 13 and the protection groove 22 form a cut-proof space, and the wire 300 is located in the cut-proof space. The grooving groove 13, the opening 121 and the protection groove 22 can be used to prevent the cutting wires 12 from being cut by the cutting portions 12, and the first mold 10 is prevented from being damaged by the wires 300; The present invention has the ability to prevent the cutting damage of the substrate 200 having the wire 300 during the process, and protect the structure of the wire 300, thereby improving the production yield, effectively reducing the waste generated by the defective product, and reducing the process cost. efficacy.

It should be noted that the wave portion 201 of the substrate 200 is selected from one of a circular region shape, a rectangular region shape, an elliptical region shape, and a polygonal region shape. In this embodiment, a circular region shape is taken as an example. The pressing portion 112 of the first mold 10 and the positioning portion 23 of the second mold 20 are also formed in a circular area, and the cutting portions 12 are located inside and outside the pressing portion 112; in other words, When the wave portion 201 of the substrate 200 is one of a rectangular region shape, an elliptical region shape, and a polygonal region shape, the pressing portion 112 and the positioning portion 23 can also be formed in a region corresponding to the wave portion 201. .

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The locating surface of the horn of the horn of the present invention, the locating surface 21 of the second dies 20 can be used to locate at least one substrate 200 provided with a wire 300, and the wire 300 is located in the protection groove 22 When the first mold 10 cuts the substrate 200, the slit 13, the opening 121 and the protection groove 22 can prevent the cutting portion 12 from cutting the wire 300.

In this way, the creation has the following implementation effects and technical effects:

First, the creation system can prevent the cutting damage of the substrate 200 having the wire 300 during the process, and protect the structure of the wire 300, thereby improving the production yield, effectively reducing the waste generated by the defective product, and reducing the process cost. In order to solve the problems existing in the prior art.

Secondly, the horn vibrating piece 400 cut by the present invention can provide the speaker with the horn vibrating piece 400 to have better sound quality and stability of use.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the equivalent structural changes that are applied to the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

100‧‧‧ cut off the mold structure
10‧‧‧First mould
11‧‧‧cut surface
111‧‧‧Affected area
112‧‧‧Fisting Department
113‧‧‧through hole
12‧‧‧Cut Department
121‧‧‧ openings
13‧‧‧cutting
14‧‧‧Pressure block
20‧‧‧Second mold
21‧‧‧ positioning surface
22‧‧‧protection tank
23‧‧‧ Positioning Department
24‧‧‧Fixed block
241‧‧‧ accommodating slots
242‧‧‧Cylinder
25‧‧‧displacement block
251‧‧‧Perforation
26‧‧‧Bumps
200‧‧‧Substrate
201‧‧‧Wave Department
300‧‧‧ wire
400‧‧‧ horn vibrating piece

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a preferred embodiment of the present invention. 2 is a perspective view of a first mold of a preferred embodiment of the present invention. 3 is a perspective view of a second mold of a preferred embodiment of the present invention. Figure 4 is a perspective view showing another state of the second mold in a preferred embodiment of the present invention. FIG. 5 is a schematic diagram of a process state of a preferred embodiment of the present invention. Figure 6 is a schematic view showing the cutting state of a preferred embodiment of the present invention. Fig. 7 is a perspective view of a horn vibrating piece according to a preferred embodiment of the present invention.

Claims (10)

A cutting die structure for a horn vibrating piece, comprising: a first die having a cutting surface, wherein the cutting surface is provided with two cutting portions, and the cutting portions are recessed with an opening, The cutting portions are spaced apart by a spacing, and a pressing area is formed on the cutting surface between the cutting portions; and a second mold having a positioning surface corresponding to the cutting surface, the positioning surface is The recessed surface is provided with a protective groove corresponding to the opening; wherein the positioning surface is used for positioning at least one substrate having a wire, and the wire is located in the protection groove, when the first mold is opposite to the substrate When the cutting is performed, the opening and the protection groove are used to prevent the cutting portion from cutting the wire. The cutting die structure of the horn vibrating piece according to claim 1, wherein the cutting face should be provided with at least a groove for protecting the groove, the sulcus connecting the opening, and the sipe The protection groove forms a cut-proof space. The cutting die structure of the horn vibrating piece according to claim 1, wherein the substrate has a wave portion having a circular block at a central position of the wave portion, and the wire system is further Provided in the wave portion, and one end of the wire protrudes from the wave portion, and the other end protrudes to the circular block. The cutting die structure of the horn vibrating piece according to claim 3, wherein the first die is provided with a through hole corresponding to the circular block, and the pressing region is convexly disposed corresponding to the wave portion. A wavy press-fitting portion. The cutting die structure of the horn vibrating piece according to the fourth aspect of the invention, wherein the positioning surface of the second die is convexly disposed with a wavy positioning portion corresponding to the pressing surface, and the positioning surface is A circular shape is formed at a central position corresponding to a circular block. The cutting die structure of the horn vibrating piece according to claim 5, wherein the second die has a fixing block and a displacement block, and the fixing block has a concave shape corresponding to the outer peripheral side of the first die. a slot is formed, and a central portion of the receiving slot is convexly disposed with a cylinder, and one side of the displacement block is provided with the positioning portion, and the displacement block is provided with a through hole, and the cylinder is provided with a through hole The perforation is inserted and the displacement block is displaceable relative to the cylinder. The cutting die structure of the horn vibrating piece according to claim 6, wherein the lower side of the displacement block is provided with an elastic supporting structure for the displacement block to be opposite to the fixed block axis. Displacement. The cutting die structure of the horn vibrating piece according to claim 6, wherein the displacement block is provided with the positioning portion, and the displacement block is provided with the protection groove, and the plane is the top of the cylinder surface. The cutting die structure of the horn vibrating piece according to the sixth aspect of the invention, wherein the outer side of the displacement block is convexly provided with a protrusion, and one end of the protection groove is located at a top side of the protrusion, and the first A pressing block is protruded from the outer peripheral side of the die corresponding to the protrusion, and one end of the cutting groove is disposed on a bottom side of the pressing block. The cutting die structure of the horn vibrating piece according to claim 1, wherein the wave portion of the base material is selected from one of a circular region shape, a rectangular region shape, an elliptical region shape, and a polygonal region shape.