TWI667206B - Heated heating field device under molded three-dimensional glass continuous forming device - Google Patents

Abstract

The invention relates to a heating heat field device, in particular to a new design of a heating heat field device under a three-dimensional mold glass continuous forming device, and the heating heat field device under the molded three-dimensional glass continuous forming device comprises a heat conduction material integrally formed. a graphite heating block, and a base, the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field, the base is composed of a porous ceramic material, and the heating block is fixed to the base by a detachable component The base is placed in the fixing frame, and the fixing frame is fixed to the predetermined position of the molding device by the detachable component. The base of the invention can effectively block the heat of the heating block heat field, and greatly reduce the heat loss taken by the cooling device. Significantly reduce the cost of production.

Description

Heated heating field device under molded three-dimensional glass continuous forming device

The invention belongs to the technical field of heating and heating field devices, in particular to the new design of the heating and heating field device under the three-dimensional mold glass continuous forming device, and the base of the invention can effectively block the heat of the heating block heat field, in addition to ensuring the three-dimensional molded glass product. In addition to the accuracy of the size, the heat of the heating block heat field can be effectively blocked, the heat loss taken by the cooling device is greatly reduced, and the production cost is greatly reduced.

According to the glass, because of its high light transmission characteristics, display devices (such as mobile phones, watches and other electronic products) are often selected as the outer casing of the window portion. It can be seen that the surface of the handheld electronic product is usually provided with a glass casing to protect the display module inside the product. At present, most of the glass casings are in the shape of a flat plate, so seams are formed on the upper surface of the electronic product. Furthermore, since the peripheral portion of the electronic product must retain a certain width of the mechanism portion for holding the flat glass, the top surface of the electronic product cannot be fully utilized. Therefore, three-dimensional or curved glass has gradually been applied to the glass casing of electronic products.

A flat glass housing is easier to manufacture, and a glass housing having a three-dimensional shape is relatively difficult to manufacture. At present, there are generally two methods for manufacturing a glass shell having a three-dimensional shape: the first one is to manufacture a plurality of flat glass units, and then form a glass shell having a three-dimensional shape by adhering the edges. The second type is: manufacturing a rectangular parallelepiped glass of a certain thickness, and then grinding it on the rectangular parallelepiped glass several times to form a three-dimensional shape having a plurality of sides. However, the above two methods Both are time consuming and labor intensive, and the production speed is very slow. In general, since the glass material is a flat plate, if a glass having a shape is to be produced, it is preferable to arrange a flat glass material between an upper mold and a lower mold, and then heat the upper mold. Pieces, lower molds and glass materials to soften the glass material. When the glass material is softened, the upper mold member and the lower mold member can be clamped, so that the upper mold member and the lower mold member together shape the shape of the glass material along a mold clamping direction, thereby producing a corresponding molded glass. . China Patent Publication No. M452174 "Molding Equipment for Molding Glass" (refer to the patent publication date of the announcement date of May 1, 2013), which comprises a female mold part, a first male mold part, and a second public A mold part, a support ram and a pressure bar. The first male mold member is disposed on the female mold member in an openable manner, and the second male mold member is disposed between the female mold member and the first male mold member. The support ejector is disposed on the female mold member, and the support ejector rod is used for pushing the second male mold member to support the second male mold member and the first male mold member A molded glass. The pressing rod is disposed on one side of the first male mold part, and the pressing rod is used for pressing down the first male mold part such that the first male mold part is opposite to the second male mold part The master mold member is moved to a clamping position to form the molded glass.

A 3D three-dimensional molded glass forming machine is produced by a hot press forming technique, and a heating device directly heats the mold. For example, the applicant has previously proposed the approved M524845 "heating device for molding a stereoscopic glass continuous forming device" [July 1, 1 May] Japanese Announcement, which is specially designed for the structure of the heating device of the three-dimensional mold glass continuous forming device, which is composed of a heat block integrally formed by a heat conduction material, and the heating block has an appropriate number of slots to set the heating element. Since the heating block is integrally formed, there is no heat loss of conduction, and heat conduction is good, and is suitable for continuous molding of high-temperature stereo-molding glass. However, since the heating element of the previous case is set In the slot of the heating block, if the heating element is damaged after a period of use, generally only the damaged heating element is replaced, so that when the newly replaced heating element is used together with the heating element used for a period of time, due to the new The heating temperature of the old heating element will be different, so that when the heating block is heated unevenly, the yield of the molded stereoscopic glass product is always reduced, and it is missing. Furthermore, since the heating element is easily disposed in the slot of the heating block, there must be a gap between the outer edge of the heating element and the inner edge of the slot, and the gap has a loss of heat conduction loss. Accordingly, the application for the re-provision of I606017 "The heating device for the molded three-dimensional glass continuous forming device" [November 21, 2011] is mainly composed of a heating block and a base integrally formed by a heat conduction material, and the heating block has appropriate The number of slots is tightly coupled to the heating element, and there is no gap between the heating element and the heating block slot. The heating block is fixed to the base by a detachable component, and the base is fixed to the molded stereoscopic glass continuous forming device by a detachable component. In the predetermined position, when the heating element is replaced, the heating block containing the heating element is replaced, and the base is not replaced, so that all the heating elements combined with the heating block are replaced together, and the missing portion can be eliminated.

However, in the prior patent, since the heating block is integrally formed of a heat-conducting metal material, the heating block is fixed to the base by a detachable component, and since the heat conduction of the metal is still not fast enough, the heat of the heating block and the heating element is formed. There is still room for improvement in heat transfer and temperature uniformity of the field.

Furthermore, as shown in Fig. 1, since the lower heating device (A), the heating block (B) and the base (C) are integrally formed of a heat conductive metal material, and the heating block (B) has an appropriate number. The slot (F) constitutes a heating heat field by closely bonding the heating element (G), and the heat system of the heating block (B) heating the heat field is directly transmitted to the metal base (C), which causes the base (C) to be caused by high temperature. There is a deformation, and the pressure is insufficient, and it is impossible to ensure the accuracy of the dimensional dimension of the three-dimensional molded glass product. As mentioned earlier The conventional metal base (C) is fixed at a predetermined position of the molded stereoscopic glass continuous forming device by a detachable component, that is, the metal cavity (D) shown in FIG. 1 , and the cooling water channel is provided in the metal cavity (D) ( E), the metal base (C) conducts the heat of the heated heat field to the metal cavity (D), and in order to avoid deformation of the metal cavity (D), the source is continuously conducted to the metal cavity by the cooling water in the cooling water channel (E) The tropical movement of the body (D) will cause great energy loss and increase production costs. In view of this deficiency, the present invention proposes a better design, and the patent for heating the thermal field device under the molded stereoscopic glass continuous forming device is more perfect.

The inventor of the present invention, in view of the lack of conventional technology, has accumulated many years of experience in the design and manufacture of precision ceramics technology industrial products. After continuous research and improvement, the invention has been successfully developed and made public.

Therefore, the main object of the present invention is to provide a "heating field device under the molding three-dimensional glass continuous forming device", which is specially designed for the new structure of the heating heat field device under the three-dimensional die-making glass continuous forming device. The heating thermal field device under the continuous glass forming device comprises a heating block and a base integrally formed with a heat conduction material, and the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field, and the base is porous. The ceramic material is constructed, the heating block is fixed on the base by a detachable component, the base is placed in the fixing frame, and the fixing frame is fixed at a predetermined position of the molding device by a detachable component, and the base of the invention is made of a porous ceramic material. The structure is made of a non-metallic porous ceramic material which is resistant to high temperature, high pressure and deformation, and can be heat-insulated and withstand pressure, so that the base can be pressed at a high temperature without deformation, in addition to ensuring the accuracy of the dimensions of the three-dimensional molded glass product. In addition, the heat of the heating block heat field can be effectively blocked, and the heat loss carried by the cooling device is greatly reduced. It has significantly reduced the cost of production of the effect.

The base of the foregoing porous ceramic material of the present invention is tantalum carbide or aluminum oxide The composition is preferred.

The heating block integrally formed by the heat conduction good material of the invention is formed by integrally forming graphite, and the heat conduction and the average temperature of the heating block of the heating block formed by graphite are better than the heating block of the metal material, and the heating block composed of graphite has more It is not easy to be deformed, and has the effect of making the internal stress of the three-dimensional molded glass product small and the molding yield high.

(A) ‧‧‧ Lower heating unit

(B) ‧‧‧heating block

(C) ‧‧‧Base

(D)‧‧‧Metal cavity

(E) ‧‧‧Cooling waterways

(F) ‧‧‧ slots

(G) ‧ ‧ heating elements

(1)‧‧‧ furnace body

(10) ‧‧‧Heating temperature forming zone

(11) ‧‧‧Declining zone

(12) ‧‧‧Cooling area

(2) ‧ ‧ inner conveyor

(3) ‧‧‧Outer transport lanes

(4) ‧ ‧ exchange system

(40) ‧ ‧ airtight doors

(41) ‧ ‧ airtight doors

(42) ‧‧ ‧ exchange room

(5) ‧‧‧ Pressurized system

(6) ‧‧‧Upper heating device

(60) ‧‧‧ Lower heating unit

(61) ‧‧‧heating block

(62)‧‧‧Base

(63)‧‧‧Slots

(64) ‧‧‧ Bearing plate

(65) ‧‧‧heating block

(66)‧‧‧Base

(67) ‧‧‧Slots

(68) ‧‧‧Fixed frame

(69)‧‧‧Metal cavity

(690)‧‧‧Cooling waterways

(7)‧‧‧Mold

(8) ‧‧‧ heating elements

(9) ‧‧‧displacement mechanism

1 is a schematic view of a conventional heating heat field device; FIG. 2 is a front cross-sectional view of the molded three-dimensional glass continuous molding device of the present invention; and FIG. 3 is a top cross-sectional view of the molded three-dimensional glass continuous molding device of the present invention; Figure 5 is a side view of a molded stereoscopic continuous glass forming apparatus; Fig. 5 is a plan view of a heated thermal field device according to an embodiment of the present invention; Fig. 6 is a plan view of a heated thermal field device of the embodiment of the present invention; and Fig. 7 is a lower heating of the present invention Schematic diagram of the thermal field device.

In order to achieve the above-described technical means of the present invention, an embodiment will be described, and with reference to the drawings, the reviewer can obtain a better understanding of the structure, features and effects of the present invention.

The invention is particularly directed to a new design of the heating device structure under the three-dimensional molded glass continuous forming device. First, as shown in Figures 2 and 3, the heating and heating field device of the present invention is disposed in a three-dimensional molded glass continuous forming device, which mainly It is composed of a furnace body (1), an inner conveying path (2), an outer conveying path (3), an exchange system (4) and a pressurizing system (5), and the inner conveying path (2) is arranged in the furnace body (1) ) Internal, and connected to the exchange system (4) on the two sides of the furnace body (1), the outer conveyor (3) is located outside the furnace body (1), and is connected to the exchange system of the two sides of the furnace body (1) (4) The furnace body (1) is sealed and introduced with a protective gas. [The device for providing shielding gas is a conventional technology, and there are few rumors], and the temperature-increasing high-temperature forming zone (10) and the descending zone (11) are distinguished according to the process. The cooling zone (12), the high temperature forming zone (10) and the descending zone (11) have heat-resistant materials. [The heat-resistant material is a conventional technique, the figure is not shown, not much rumor], and the cooling zone (12) has a cooling device. The cooling device is a conventional technology, and there are not many rumors. The heating system (5) is provided above the temperature rising high temperature forming zone (10), the descending zone (11) and the cooling zone (12), and the temperature rising high temperature forming zone (10) is gentle. The upper heating system (6) is combined under the pressure system (5) of the lowering zone (11) [please refer to FIG. 4], and each upper heating field device (6) is provided below the furnace body. The lower heating field device (60), the upper heating field device (6) and the lower heating field device (60) are provided with heating elements (8) [temperature control and other devices are conventional techniques, not much rumors], and depending on the process Program heating Heating the thermal field device (6) and heating the thermal field device (60) to a desired temperature, as shown in Fig. 4, the heating thermal field device of the present invention comprises heating under the pressurized system (5) The field device (6) and the heating device (60) are disposed under the lower side, as shown in Fig. 5. The upper heating field device (6) of the present invention is a heating block integrally formed by heat conduction (61). And a base (62) having a suitable number of slots (63) for tightly bonding the heating element (8) to form a heated thermal field, between the heating block (61) and the base (62) The pressure plate (64) is made of a porous ceramic material, the heating block (61) is fixed to the base (62) by a detachable component, and the base (62) is fixed to the molding device by a detachable component. The upper heating field device (6) is combined under the pressing system (5) of the heating high temperature forming zone (10) and the descending zone (11), as shown in Fig. 6, the lower heating of the present invention The thermal field device (60) comprises a heating block (65) and a base (66) integrally formed with a heat conduction material, and the heating block (65) has an appropriate number of slots (67) for tight bonding. Element (8) configured to heat the thermal field, the base (66) is comprised of the porous ceramic material, the heating block (65) based removable element to Fixed on the base (66), the base (66) is placed in the fixing frame (68), and the fixing frame (68) is fixed to the predetermined position of the molding device by a detachable component [ie, each heating thermal field device (6) The lower heating field device (60) is disposed under the furnace body. The base (66) of the present invention is composed of a porous ceramic material and is made of a non-metallic porous ceramic material resistant to high temperature, high pressure and deformation. The base (66) can break heat and withstand pressure, so that the base can be pressed at high temperature without deformation, and in addition to ensuring the accuracy of the size of the three-dimensional molded glass product, the heat of the heat field of the heating block (65) can be effectively blocked. The heat loss taken away by the cooling device is greatly reduced, and the production cost is greatly reduced. The flat glass to be formed is placed in the molding surface of the mold (7), and when the mold (7) is pushed into the inner heating path, the heating field device (60) is pushed [the mold (7) is pushed into the inner conveying path). The heating thermal field device (60) is at a predetermined position by using the displacement mechanism (9) shown in Fig. 4, and when the high temperature forming region (10) is heated, the pressing system (5) is pressed to make the upper heating thermal field device (6) And the heating field device (60) heats the mold to a set temperature, the post-pressurization system (5) rises, the mold (7) is pushed into the next lower heating field device (60), and the pressurization system (5) Pressing the upper heating field device (6) and the lower heating field device (60) to heat the mold to a set temperature, so that the glass to be formed in the mold (7) is staged by preheating [to avoid temperature changes too fast damage] And to the high temperature, the glass is softened and simultaneously formed by the pressurization of the pressurizing system (5), and then cooled by the descending zone (11) [to avoid the temperature change is too fast damaged] and the cooling zone (12) is cooled and sent. It is made out of the outside of the furnace and then demoulded. It has the effect of continuous, high-efficiency and high-quality molding of three-dimensional glass.

Referring to FIG. 3, the exchange system (4) provided on both sides of the furnace body (1) has two airtight doors (40) (41), and forms an exchange chamber (42). (7) Before being fed into the furnace body (1), the two airtight doors (40) (41) at the head end of the furnace body (1) are closed, and the chamber (42) to be exchanged is evacuated and the shielding gas is introduced to After the same environment in the furnace body (1), the inner side airtight door (41) opens to push the mold (7) into the furnace body (1). Before the mold (7) is sent out of the furnace body (1), the furnace body The two airtight doors (40) (41) at the end are closed. And the vacuum is introduced into the exchange chamber (42) and the shielding gas is introduced into the same environment as the furnace body (1), and the inner side airtight door (41) opens to push the mold (7) into the exchange chamber (42). It has the effect of avoiding the mixing of the outside air of the furnace body (1) to improve the molding quality of the component.

As described above, referring to FIG. 6, the lower heating field device (60) of the present invention comprises a heating block (65) integrally formed with a heat conduction material and a base (66), the heating block (65). A suitable number of slots (67) are provided to tightly bond the heating element (8) to form a heated thermal field, the base (66) is comprised of a porous ceramic material, and the heating block (65) is secured to the base by a detachable component ( 66) upper [detachable components such as bolts, fixing pins, etc.), the base (66) is placed in the fixing frame (68), and the fixing frame (68) is fixed to the predetermined position of the molding device by a detachable component [ie Each of the upper heating thermal field devices (6) is provided with a lower heating thermal field device (60), that is, a metal cavity (69) as shown in Fig. 7 below the furnace body, and the base (66) of the present invention is porous. Made of ceramic material, it is made of non-metallic porous ceramic material with high temperature resistance, high pressure resistance and non-deformation. It can break heat and withstand pressure, so that the base can be pressed at high temperature without deformation, in addition to ensuring three-dimensional molded glass. In addition to the accuracy of the product dimensions, please refer to Figure 7, due to the heating of the thermal field device (60), the heating block (65) The heat conduction material is integrally formed, and the base (66) is composed of a porous ceramic material, and the heat of the heating block (65) to heat the heat field is blocked by the base (66) composed of the porous ceramic material, and the base (66) The conduction to the metal cavity (69) is greatly reduced in heat [the base (66) is placed in the fixing frame (68), and the fixing frame (68) is fixed to the predetermined position of the molding device by a detachable member, that is, Fig. 7 The illustrated metal cavity (69)], the cooling water in the cooling water channel (690) has a limited heat removal, that is, the base (66) composed of the porous ceramic material can effectively block the heat of the heating field of the heating block (65). The heat loss taken away by the cooling water channel (690) is greatly reduced, and the production cost is greatly reduced.

The base (66) of the foregoing porous ceramic material of the present invention is tantalum carbide or oxygen Aluminum is preferred.

The heating block (65) integrally formed by the heat conduction good material of the invention is formed by integrally forming graphite, and the heat conduction and the average temperature of the heating block of the heating block (65) made of graphite are better than the heating block of the metal material, and the graphite is better. The heating block (65) is more resistant to deformation, and has the effect of making the internal stress of the three-dimensional molded glass product small and the molding yield high.

In summary, the present invention discloses a "heating thermal field device under the molding three-dimensional glass continuous forming device", which has never been seen in publications at home and abroad, and has a novel patent requirement. The invention can indeed eliminate the lack of conventional technology, and achieve the design purpose, and has fully complied with the patent requirements, and filed an application according to law. Please ask the reviewing committee to give a review and give the patent in this case.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the equivalent structural changes made by the present invention and the scope of the patent application are known to those skilled in the art. It is intended to be included in the scope of the patent of the present invention.

Claims (4)

The utility model relates to a heating thermal field device under the molded stereoscopic glass continuous forming device, which mainly comprises a heating block integrally formed with a heat conduction material and a base, wherein the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field. The base is made of a porous ceramic material, and the heating block is fixed on the base by a detachable component, the base is placed in the fixing frame, and the fixing frame is fixed to the predetermined position of the molding device by the detachable component. The method of heating a thermal field device under the molded three-dimensional glass continuous forming device according to claim 1, wherein the base is composed of porous carbonized niobium. The apparatus of claim 1, wherein the base is made of porous alumina. The heating field device is heated under the molded three-dimensional glass continuous forming device according to claim 1, wherein the heating block integrally formed by the heat conduction material is integrally formed of graphite.