TWI667207B - Heating and heating field device for molding stereoscopic 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 for a three-dimensional mold glass continuous forming device, and the heating heat field device of the three-dimensional glass continuous forming device of the invention is heated by a graphite material integrally formed by heat conduction material. The block and the base are configured, the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field, and a pressure plate composed of a porous ceramic material is arranged between the heating block and the base, and the heating block is detachable The component is fixed on the base, and the base is fixed to the predetermined position of the molding device by a detachable component. Due to the heat conduction and the uniform temperature of the heating heat field, the internal molding glass product has small internal stress, high molding yield, and can ensure the product. The accuracy of the dimensions.

Description

Heating and heating field device for molding stereoscopic glass continuous forming device

The invention belongs to the technical field of heating and heating field devices, in particular, relates to a new design of a heating and heating field device for a three-dimensional mold glass continuous forming device. Since the heat field of the heating heat field is good and the temperature is good, the internal stress of the three-dimensional molded glass product is small and well formed. The rate is high and the accuracy of the product size is ensured.

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 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, the lower mold, and the glass material to make the glass material. soften. 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 preceding case is disposed in the slot of the heating block, after the use of the heating element for a period of time, generally only the damaged component is damaged. The heating element, when the newly replaced heating element is used together with the heating element used for a period of time, the temperature of the heating of the new and old heating elements may be different, so that when the heating block is heated unevenly, the molding is made. The yield of stereoscopic glass products has been decreasing 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. Moreover, since the heat of the heating block is directly transmitted to the metal base, the base is deformed due to high temperature, and the pressure bearing property is insufficient, and the accuracy of the dimensional dimension of the three-dimensional molded glass product cannot be ensured. In view of this deficiency, the present invention proposes a better design, and the patent for the heating and heating field device of the molded three-dimensional glass continuous forming device is further improved.

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, and after continuous research and improvement, Ming's research and development success, publicity in the world.

The main purpose of the present invention is to provide a "heating field device for molding a three-dimensional glass continuous forming device", which is specially designed for the structure of a heating and heating device of a three-dimensional die-making glass continuous forming device. The heating and heating device of the forming device is composed of a heating block and a base integrally formed by heat conduction, and the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field, and the heating block and the base are provided with a porous layer. a bearing plate made of a ceramic material, the heating block is fixed on the base by a detachable component, and the base is fixed at a predetermined position of the molding device by a detachable component, and is formed by a porous ceramic material between the heating block and the base. The pressure plate is made of non-metallic porous ceramic material with high temperature resistance, high pressure resistance and non-deformation. It can break heat and pressure, and the base can be pressed at high temperature without deformation, which ensures the size of the three-dimensional molded glass product. The accuracy.

The pressure receiving plate composed of the above porous ceramic material of the present invention is preferably a tantalum carbide bearing plate or an alumina bearing plate.

Another main object of the present invention is to provide a "heating field device for molding a three-dimensional glass continuous forming device", which is specially designed for the structure of a heating and heating device of a three-dimensional die-making glass continuous forming device. The heating field device of the device is composed of graphite integrally formed 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, and the heating block is fixed to the heating element by a detachable element. On the base, the base is fixed at a predetermined position of the molding device by a detachable component. The heating block of the present invention is integrally formed of graphite, and the heat conduction and the average temperature of the heating block of the heating block formed by graphite are higher than that of the metal material heating block. Preferably, the heating block composed of graphite has the property of being less deformable, and has the effects of low internal stress and high molding yield of the three-dimensional molded glass product.

(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

(7)‧‧‧Mold

(8) ‧‧‧ heating elements

(9) ‧‧‧displacement mechanism

1 is a front cross-sectional view of a molded stereoscopic continuous glass forming apparatus of the present invention; FIG. 2 is a top cross-sectional view of the molded stereoscopic glass continuous forming apparatus of the present invention; and FIG. 3 is a side view of the molded stereoscopic continuous glass forming apparatus of the present invention; 4 is a plan view of a heating apparatus of an embodiment of the present invention.

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 present invention is particularly directed to a novel design of a heating device for a three-dimensional molded glass continuous forming device. First, as shown in Figures 1 and 2, the heating and heating device of the present invention is disposed in a three-dimensional molded glass continuous forming device, which is mainly The furnace body (1), the inner conveying path (2), the outer conveying path (3), the exchange system (4) and the pressurizing system (5) are arranged, 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 is raised. Type region (10) and a ramp-down region (11) of each of the pressing system (5) below the heating heat bonded on the field means (6), each of the thermal field on the heating means (6) relative to the bottom of the furnace a lower heating field device (60) is provided, and the upper heating field device (6) and the lower heating field device (60) are provided with heating elements (8) [temperature control devices and the like are conventional techniques, not much rumors], and Heating the upper heating field device (6) and the lower heating field device (60) to a desired temperature according to a process program, as shown in Fig. 4, the heating field device (6) (60) of the present invention Heating the thermal field device (6) above the pressing system (5) and heating the thermal field device (60) under the lower portion of the pressing system (5), which is a heating block (61) and a base (62) integrally formed by heat conduction. The heating block (61) has an appropriate number of slots (63) for tightly bonding the heating element (8) to form a heating thermal field, and a porous ceramic material is disposed between the heating block (61) and the base (62). The pressure plate (64) is formed, the heating block (61) is fixed to the base (62) by a detachable component, and the base (62) is fixed to the predetermined position of the molding device by a detachable component. The upper heating system (6) is combined under each of the pressing system (5) of the zone (10) and the descending zone (11), and each upper heating field device (6) is provided with a lower heating heat below the furnace body. The device (60) is provided with a pressure-bearing plate (64) composed of a porous ceramic material between the heating block (61) and the base (62), and is made of a non-metallic porous ceramic material resistant to high temperature, high pressure and deformation. The bearing plate (64) can be heated, high temperature resistant and high pressure resistant under pressure, so that the base is not easily deformed under high temperature and high pressure, so that the precision of the size of the three-dimensional molded glass product can be ensured. 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. 3, 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 pressurization system (5), and then the descending zone (11) The cooling (to avoid the temperature change is too fast damage) and the cooling zone (12) are cooled and sent out of the furnace body, and then released from the mold, which has the effect of continuous, high efficiency and high quality molding of the three-dimensional glass.

Referring to Fig. 2, the exchange system (4) provided on the two sides of the furnace body (1) each has two airtight doors (40) (41) and forms an exchange chamber (42) when the mold (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 rear end are closed, and the exchange chamber (42) has been evacuated and introduced with shielding gas to the same environment as the furnace body (1), and the inner side airtight door (41) The square opening pushes the mold (7) into the exchange chamber (42), so as to avoid the effect of mixing the outside air of the furnace body (1) to improve the molding quality of the component.

As described above, referring to Fig. 4, the heating field device (6) (60) of the present invention comprises the heating device (6) disposed under the pressurizing system (5) and disposed opposite thereto. The heating field device (60) is composed of a heating block (61) and a base (62) integrally formed by heat conduction, and the heating block (61) has an appropriate number of slots (63) for tightly combined heating. The component (8) constitutes a heating heat field, and a pressure plate (64) composed of a porous ceramic material is arranged between the heating block (61) and the base (62), and the heating block (61) is fixed to the base by a detachable component. (62) Upper [detachable components such as bolts, fixing pins, etc.], the base (62) is fixed to the predetermined position of the molding device by a detachable component [ie, the temperature rising high temperature forming zone (10) and the descending zone (11) The upper heating system (5) is combined with the upper heating field device (6), and each upper heating field device (6) is provided with a lower heating field device (60) opposite to the furnace body, due to the heating block ( 61) A bearing plate (64) made of a porous ceramic material is disposed between the base (62) and a pressure-resistant plate (64) made of a non-metallic porous ceramic material resistant to high temperature, high pressure and deformation. When hot pressing can break, high temperature, high pressure, while the chassis is not easy deformation at high temperature and pressure, thus having a three-dimensional molding made to ensure The precision of the size of the glass product.

It is preferable that the pressure receiving plate (64) composed of the above-mentioned porous ceramic material is a pressure receiving plate made of tantalum carbide or a pressure receiving plate made of alumina.

Furthermore, the heating and heating field device of the three-dimensional glass continuous molding device of the present invention is specially designed for the structure of the heating and heating field device of the three-dimensional glass-making continuous molding device, and the heating and heating device system of the three-dimensional glass continuous molding device of the present invention The graphite block is composed of an integrally formed heating block (61) and a base (62) having a suitable number of slots (63) for tightly bonding the heating element (8) to form a heating heat field, the heating block (61) is fixed to the base (62) by a detachable component [removable components such as bolts, fixing pins, etc.], and the base (62) is fixed to a predetermined position of the molding device by a detachable component. An upper heating field device (6) is combined under each of the pressing system (5) of the forming zone (10) and the descending zone (11), and each upper heating field device (6) is provided with a lower heating below the furnace body. The thermal field device (60), the heating block (61) of the present invention is integrally formed of graphite, and the heat conduction and the average temperature of the heating field of the heating block (61) made of graphite are better than that of the metal material heating block. The material heating block will be due to the high temperature of the metal material. Deformed, softened, and graphite having a high hardness, good conductivity, radiation protection, corrosion resistance, thermal conductivity, low cost, but also has high temperature characteristics. The graphite material has opposite properties to the temperature rise of the metal material. The higher the temperature, the harder the graphite is, so that the graphite does not have the problem of deformation. Therefore, the use of graphite material to make the heating block, in addition to heat conduction and uniform temperature, when the maximum degree of precision can be ensured], and the heating block (61) composed of graphite is more resistant to deformation, and has a stereoscopic molded glass product. The effect of small force and high molding yield.

In summary, the "heating field device for molding a three-dimensional glass continuous forming device" disclosed in the present invention has not been seen in the past, and has not been seen in publications published at home and abroad. The novelty of the patent requirements, and the invention can indeed eliminate the lack of customary technology, and achieve the design purpose, has also fully complied with the patent requirements, and filed an application according to law, I would like to ask your review board to review and give the patent in this case, Will.

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)

A heating and heating field device for molding a three-dimensional glass continuous forming device is mainly composed of a heating block and a base integrally formed by heat conduction, and the heating block has an appropriate number of slots to closely combine the heating elements to form a heating heat field, and the heating block A pressure plate composed of a porous ceramic material is disposed between the base and the heating block is fixed to the base by a detachable component, and the base is fixed at a predetermined position of the molding device by a detachable component. The heating and heating device of the molded three-dimensional glass continuous forming device according to claim 1, wherein the pressure receiving plate is composed of porous carbonized crucible. The heating and heating device of the molded three-dimensional glass continuous forming device according to claim 1, wherein the bearing plate is made of porous alumina. The heating and heating device of 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.