TW201415914A - Manufacturing method and product of aspheric sound basin - Google Patents

Abstract

The present invention provides a manufacturing method and product of an aspheric sound basin in which the method comprises the following steps: selecting a thermoplastic material; selecting a hot hubbing mold which includes a top mold and a bottom mold while the top mold has a top mold pressing surface, the bottom mold has a bottom mold pressing surface, the top mold pressing surface includes an aspheric part and the bottom mold pressing surface includes an aspheric part; setting the thermoplastic material between the top mold pressing surface and the bottom mold pressing surface; heating the thermoplastic material and the hot hubbing mold and applying a force to press the top mold and the bottom mold to fit; and stopping heating and applying the force while the thermoplastic material forms a non-enclosed surrounding surface including a base part and the periphery of the base part extending outwardly.

Description

Method and product for manufacturing aspherical cone

The invention relates to a method and a product for manufacturing a cone, and in particular to a method and a product for manufacturing an aspherical cone.

The conventional sound cone or vibrating membrane is one of the important sounding components of a horn or a loudspeaker. The principle of operation is to pass a current through a voice coil, thereby generating a magnetic field and a vibration force, and pushing a cone to vibrate and compress. The surrounding air produces sound waves that make a sound. In order to produce a variety of sounds of different sound qualities, a cone is produced of different materials, such as paper, plastic, metal, fiberglass, carbon fiber, ceramic or composite materials.

However, as the vibration force continuously changes in size and is used in different environments, it is easy to cause the cone to be damaged by the fatigue or deteriorated by the environment, causing the sound to deteriorate and even the cone to be damaged. In addition, the shape of the cone is often a conical surface, a spherical surface or an exponential surface, and thus the variation of the timbre is limited.

The main object of the present invention is to provide a method and a product for manufacturing an aspherical cone that has a relatively hard material.

A second object of the present invention is to provide a method and product for producing an aspherical cone that has a relatively thin thickness.

Still another object of the present invention is to provide a method and a product for manufacturing an aspherical cone that has a material that is difficult to penetrate by sound waves.

In order to achieve the above object, the present invention provides a method and a product for manufacturing an aspherical cone, the method comprising the steps of: selecting a thermoplastic material; selecting a hot stamping mold, the hot stamping mold comprising an upper mold and a lower portion a mold having an upper molding surface, the lower mold having a lower molding surface, the upper molding surface comprising an aspherical surface, the lower molding surface comprising an aspherical surface; the thermoplastic material being placed on the upper molding surface and Between the lower molding surfaces; heating the thermoplastic material and the hot molding die to press the upper mold and the lower mold with a force; removing the heating and the force, the thermoplastic material forming comprising a base and the peripheral side of the base Extending outwards is a non-closed surrounding surface.

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

The first figure is a flow chart of the manufacturing method of the present invention.

The second drawing is an embodiment of the product of the invention (a) side view in two directions.

The third figure is a side view of the embodiment of the product of the invention (2) in two directions.

The fourth figure is a side view of the embodiment of the product of the invention (c) in two directions.

The fifth drawing is a side view of the embodiment of the product of the present invention (4) in two directions.

The sixth and seventh figures are schematic views of steps 103 and 104 of the present invention.

Please refer to the first to seventh figures, the method for manufacturing the aspherical cone of the present invention, comprising the following steps: Step 101: Select a thermoplastic material (12) such as a flat glass having a thickness of 0.1 to 0.5 mm.

Step 102: Select a hot molding die (14), the hot molding die (14) includes an upper die (42) and a lower die (44), the upper die (42) has an upper molding surface (421), the lower The mold (44) has a lower molding surface (441), wherein the upper molding surface (421) includes an aspherical surface, and the lower molding surface (441) includes an aspherical surface.

Step 103: placing the thermoplastic material (12) between the upper molding surface (421) and the lower molding surface (441).

Step 104: heating the thermoplastic material (12) and the hot molding die (14) such that the thermoplastic material (12) has plasticity physical properties, and presses the upper mold (42) and the lower mold (44) with a force. .

Step 105: remove the heating and the force, the thermoplastic material (12) shape Forming a base portion (22) and extending a non-closed surrounding surface (24) toward the outer side of the base portion (22), in other words, the surrounding surface (24) has an outward opening, wherein the surrounding surface (24) The inner side surface (241) and the outer side surface (242) are aspherical surfaces, or the inner side surface (241) or the outer side surface (242) of the surrounding surface (24) is aspherical.

The foregoing steps of the present invention are further described as follows: the flat glass of the thermoplastic material (12) may be a tempered glass, and then the step 105 further comprises immersing the flat glass of the thermoplastic material (12) with a potassium ion solution for strengthening the thermoplastic. The material (12) has the characteristics of light weight, thin thickness, high hardness, resistance to falling, scratch resistance and high bending resistance.

The base (22) has a receiving portion (221) for receiving an acoustic wave outputted by an acoustic wave generator (not shown). For example, the receiving portion (221) is configured as an opening for wearing the cover. The sound wave generator is connected, or the receiving portion (221) is configured as a groove for wearing the sound wave generator through the sleeve.

The inner side surface (241) and the outer side surface (242) of the surrounding surface (24) are aspherical (as shown in the second figure), and the non-spherical bread contains a paraboloid (such as the third figure), an elliptical surface (such as the fourth figure) or A hyperboloid (as in Figure 5), which can be constructed according to the following equation:

Where Z is the height value in space and r is the radius; y is the plane coordinate value; K is the quadric coefficient, 0>K>--1, 1>K>0 is the ellipse, K=-1 is the paraboloid, K<-1 is the hyperboloid; An is the aspheric coefficient , is an arbitrary constant, n=2~∞.

According to the aspherical shape of the surrounding surface (24), the present invention can produce different sound qualities during operation and exhibit different timbres; and since the invention is tempered glass, it has light weight, thin thickness, high hardness and resistance. Falling, scratch resistant, highly resistant to bending The characteristics of the curve, thus making the invention durable, fatigue-resistant, and resistant to environmental changes, while making the sound last for a long time without deterioration.

Referring again to Figures 6 and 7, the thermoplastic material (12) is placed in the hot stamping die (14) of a device (16) (as in Figure 6), the device (16) comprising a pressure generator (62) And a thermal energy generator (64) heated by the thermal energy generator (64) to the thermoplastic material (12), the upper mold (42) and the lower mold (44), such as the pressure generator (62) A pneumatic cylinder, a hydraulic cylinder, a stepper motor or a servo motor applies a pressure to the hot stamping die (14) (as in Figure 7), which in turn forms the thermoplastic material (12) into a cone.

In the aspherical cone of the present invention, the inner side surface (241) or the outer side surface (242) of the surrounding surface (24) may be aspherical.

(101)‧‧‧Select a thermoplastic material

(102) ‧‧‧Selecting a hot-molded mold comprising an upper mold and a lower mold, the upper mold having an upper molding surface, the lower mold having a lower molding surface

(103) ‧‧ The thermoplastic material is placed between the upper molding surface and the lower molding surface

(104) ‧ ‧ heating the thermoplastic material and the hot stamping mold to press the upper mold and the lower mold with a force

(105) ‧ ‧ removing the heating and the force, the thermoplastic material forming a non-closed surrounding surface extending from the base portion and the peripheral side of the base portion

(12)‧‧‧ thermoplastic materials

(14)‧‧‧Hot molding die

(42)‧‧‧Upper mold

(44) ‧‧‧ Lower mold

(421)‧‧‧Upper moulding surface

(441)‧‧‧Under molding surface

(22) ‧‧‧ base

(24)‧‧‧ Around the surface

(241)‧‧‧ inside

(242)‧‧‧Outside

(221) ‧ ‧ Receiving Department

(16)‧‧‧ Equipment

(62) ‧‧‧Pressure generator

(64) ‧‧‧ Thermal Energy Generator

The first figure is a flow chart of the manufacturing method of the present invention.

The second drawing is an embodiment of the product of the invention (a) side view in two directions.

The third figure is a side view of the embodiment of the product of the invention (2) in two directions.

The fourth figure is a side view of the embodiment of the product of the invention (c) in two directions.

The fifth drawing is a side view of the embodiment of the product of the present invention (4) in two directions.

The sixth and seventh figures are schematic views of steps 103 and 104 of the present invention.

(101)‧‧‧Select a thermoplastic material

(102) ‧‧‧Selecting a hot-molded mold comprising an upper mold and a lower mold, the upper mold having an upper molding surface, the lower mold having a lower molding surface

(103) ‧‧ The thermoplastic material is placed between the upper molding surface and the lower molding surface

(104) ‧ ‧ heating the thermoplastic material and the hot stamping mold to press the upper mold and the lower mold with a force

(105) ‧‧‧ removing the heating and the force, the thermoplastic material forming comprising a base and the base a non-closed surrounding surface extending outwardly from the side of the circumference

Claims (15)

The invention relates to a method for manufacturing an aspherical cone, comprising the steps of: (a) selecting a thermoplastic material; (b) selecting a hot stamping mold, the hot stamping mold comprising an upper mold and a lower mold, the upper mold having an upper molding The lower mold has a lower molding surface, wherein the aspheric surface is disposed on a group selected from the upper molding surface, the lower molding surface, and the upper and lower molding surfaces; (c) placing the thermoplastic material thereon Between the molding surface and the lower molding surface; (d) heating the thermoplastic material and the hot molding die, so that the thermoplastic material has plastic physical properties, and presses the upper mold and the lower mold with a force; (e) shifting In addition to the heating and the force, the thermoplastic material is formed to include a base portion and the peripheral side of the base portion extends outwardly to a non-closed surrounding surface, wherein the aspheric surface is disposed from the inner side surface of the surrounding surface, the surrounding surface a group formed by the side and the inner and outer sides of the surrounding surface. The method for producing an aspherical cone according to claim 1, wherein the thermoplastic material is selected from the group consisting of glass and glass, and step (e) comprises immersing a potassium ion solution. The method for manufacturing an aspherical cone according to claim 1, wherein the base has a group selected from the group consisting of an opening and a groove. The method for manufacturing an aspherical cone according to claim 2, wherein the base has a group selected from the group consisting of an opening and a groove. The method for manufacturing an aspherical cone as described in claim 1, 2, 3 or 4, wherein the inner side surface of the surrounding surface is selected from the group consisting of a paraboloid, an elliptical surface and a hyperboloid. The method for manufacturing an aspherical cone as described in claim 1, 2, 3 or 4, wherein the outer surface of the surrounding surface is selected from the group consisting of a paraboloid, an elliptical surface and a hyperboloid. The method for manufacturing an aspherical cone as described in claim 1, 2, 3 or 4, wherein the aspherical equation of the surrounding surface is as follows: Where Z is the height value in space and r is the radius; , x, y are plane coordinate values; K is a quadric surface coefficient, 0>K>--1, 1>K>0 is an elliptical surface, K=-1 is a paraboloid, K<-1 is a hyperboloid; An is The aspheric coefficient is an arbitrary constant, n=2~∞. The method for manufacturing an aspherical cone according to claim 5, wherein the equation of the inner side of the surrounding surface is as follows: Where Z is the height value in space and r is the radius; , x, y are plane coordinate values; K is a quadric surface coefficient, 0>K>--1, 1>K>0 is an elliptical surface, K=-1 is a paraboloid, K<-1 is a hyperboloid; An is The aspheric coefficient is an arbitrary constant, n=2~∞. The method for manufacturing an aspherical cone according to claim 6, wherein the equation of the outer surface of the surrounding surface is as follows: Where Z is the height value in space and r is the radius; , x, y are plane coordinate values; K is a quadric surface coefficient, 0>K>--1, 1>K>0 is an elliptical surface, K=-1 is a paraboloid, K<-1 is a hyperboloid; An is The aspheric coefficient is an arbitrary constant, n=2~∞. An aspherical cone-shaped product made by the method of claims 1 to 4 of the patent application. An aspherical cone-shaped product made by the method of claim 5 of the patent application. An aspherical cone-shaped product made by the method of claim 6 of the patent application. An aspherical cone-shaped product made by the method of claim 7 of the patent application. An aspherical cone-shaped product made by the method of claim 8 of the patent application. An aspherical cone-shaped product made by the method of claim 9 of the patent application.