TW201806883A - Heating device for three-dimensional molded glass continuous forming device capable of providing the effects of uniform heating temperature and high yield of product - Google Patents

Abstract

The present invention relates to a heating device and, more particularly, to a novel design of a heating device for a three-dimensional molded glass continuous forming device. The heating device of the present invention comprises a heating block and a base integrally formed by material with excellent heat conductivity. The heating block has an appropriate number of slots to be closely combined with heating elements. The heating surface of the heating block is provided with a groove rail serving as a track for the movement of the mold, and the two ends of the groove rail are relatively large open ends for allowing the mold to be smoothly pushed into the specific point. The heating block is fixed on the base, which is further fixed on a predetermined position of the forming device. Because the heating elements are tightly combined with the heating block, the heating block and all heating elements combined therewith are replaced at the time of replacement, so as to exclude the defect in replacement of only the heating elements and lack of even heating temperature. Accordingly, the heating device is provided with the effects of uniform heating temperature and high yield of product, and is suitable for high-temperature three-dimensional molded glass continuous formation.

Description

Heating device for continuous three-dimensional glass molding device

The invention belongs to the technical field of heating devices, and particularly relates to a new design of a heating device structure for a continuous molding device for three-dimensional molded glass.

Press, because glass has high light transmission characteristics, so display devices (such as mobile phones, watches and other electronic products) choose it as the shell of the window part. The surface of handheld electronic products is usually provided with a glass shell to protect the display module inside the product. At present, most of the glass shells have the shape of a flat plate, so a seam is formed on the upper surface of the electronic product. Furthermore, since a certain width of the mechanism must be reserved around the electronic product to hold the flat glass, the top surface of the electronic product cannot be fully utilized. Therefore, three-dimensional or curved glass has been gradually applied to the glass shell of electronic products.

The flat glass case is easier to manufacture, and the three-dimensional glass case is more difficult to manufacture. At present, there are generally two methods for manufacturing a glass case with a three-dimensional shape. The first method is to manufacture a plurality of flat glass units, and then form a glass case with a three-dimensional shape by sticking edges. The second method is: manufacturing a rectangular parallelepiped glass with a certain thickness, and then grinding the rectangular parallelepiped glass several times to form a three-dimensional shape with multiple sides. However, the above two methods are time-consuming and labor-intensive, and the production speed is very slow. Generally speaking, since the glass material is a flat plate, if a glass with a shape is to be produced, it is better to set the flat glass material to Between an upper module and a lower module, the upper module, the lower module, and the glass material are then heated to soften the glass material. When the above-mentioned glass material is softened, the upper mold and the lower mold can perform a clamping action, so that the upper mold and the lower mold jointly shape the shape of the glass material in a clamping direction, thereby producing corresponding molded glass. . China Patent Bulletin No. M452174 "Molding Equipment for Manufacturing Molded Glass" (refer to the patent publication information on May 01, 2013), which contains a female mold part, a first male mold part, and a second male mold part. Mold parts, a support rod and a pressure rod. The first male mold part is disposed on the female mold part in an openable and closable manner, and the second male mold part is disposed between the female mold part and the first male mold part. The support ejector is penetrated through the female mold part, and the support ejector is used to push against the second male mold part, thereby supporting the second male mold part and the first male mold part to be clamped together. A moulded glass. The pressing rod is arranged on one side of the first male mold part, and the pressing rod is used to press down the first male mold part so that the first male mold part is opposite to the second male mold part. The mother mold part is moved to a mold clamping position, thereby molding the molded glass.

A molding machine for making 3D three-dimensional molded glass by using hot pressing molding technology. There is a person who directly heats the mold by using a heating device. The molding machine includes a heating device installed above the lower end of the pressurizing device and a heating device provided below the bottom. Please refer to Figure 1 for the heating device. It is mainly composed of a support base (A), a heating block (B), and a heating plate (C). The heating block (B) is provided with an appropriate number. A perforated hole (D) is provided with a rod-shaped heating tube (E) therein to heat the heating block (B) and conduct heat to the heating plate (C), and then use the heating plate (C) to heat the mold and place it in The flat glass to be molded on the molding surface of the mold is heated and softened to form in the mold. However, due to the structure of the combined heating block (B) and heating plate (C), this conventional heating device has a lack of heat conduction loss, and the rod-shaped heating tube (E) cannot provide sufficient heating temperature to the mold. Glass softening today The increasing temperature (especially the high softening temperature of aluminum-containing glass) has been unable to meet the needs of the industry and is missing.

The applicant previously proposed the approved M524845 "Heating device for continuous molding of molded three-dimensional glass" [Announcement of July 1, 105], which is a new design of the heating device structure specifically for continuous molding of three-dimensional molded glass. The heating device is It is composed of a heating block with a good heat conduction material. The heating block has a suitable number of slots for heating elements. Since the heating block is formed integrally, there is no heat loss from conduction, and the heat conduction is good. It is suitable for higher temperature three-dimensional molded glass. Continuous molding. However, because the heating element in the previous case is set in the slot of the heating block, if the heating element is damaged after using it for a period of time, generally only the damaged heating element is replaced. This will cause the newly replaced heating element to be used for a period of time. In the case of using the heating element together, because the heating temperature of the old and new heating elements will be different, so the heating temperature of the heating block is not uniform, so that the yield of the molded three-dimensional glass product has been reduced, which is missing. In addition, 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 this gap has a loss of heat conduction loss. In view of this deficiency, the present invention proposes a better design, so that the patent for the heating device of the continuous three-dimensional glass molding device is perfected.

In view of the lack of conventional technology, the inventor of the present invention has accumulated many years of practical expertise in the design and manufacturing of precision ceramic technology industrial products. After continuous research and improvement, the research and development of the present invention has finally been successful and made public.

The reason is that the main purpose of the present invention is to provide a "heating device for continuous molding of molded three-dimensional glass", which is specially designed for the heating device of the continuous molding device for three-dimensional molded glass. The heating device of the present invention is made of a material with good heat conduction. Molded heating block and bottom The heating block has a proper number of slots to tightly combine the heating elements. The heating block is fixed on the base, and the base is fixed on the predetermined position of the three-dimensional glass continuous molding device. The heating element is tightly combined with the heating block. When replacing, it replaces the heating block and all heating elements combined on the heating block, so there will be no replacement of the heating element alone, resulting in the lack of uneven heating temperature. It has the effect of uniform heating temperature and high product yield. The heating block is integrally formed, and there is no conductive heat loss, and the heat conduction is good, which is suitable for continuous molding of higher temperature three-dimensional molded glass.

The heating block of the present invention has a groove rail on the heating surface as a track for the mold to move, and two ends of the groove rail have larger open ends to facilitate the smooth insertion of the mold into the fixed point.

The heating element provided in the foregoing heating block of the present invention mainly includes an electric heating element and a protective tube covering the outer edge of the electric heating element. The heating element is exposed at two open ends of the protective tube and forms a wiring terminal. The two ends of the open end are fixedly closed by fixing members, and the open ends of the two sides of the protection tube are provided with a gas-tight sealing layer, so that the protection tube is formed in a gas-sealed state to provide a sufficiently high temperature heating block.

(1) ‧‧‧furnace

(10) ‧‧‧Heating and high temperature forming zone

(11) ‧‧‧ Slowly descending zone

(12) ‧‧‧Cooling zone

(2) ‧‧‧Inner Conveyor

(3) ‧‧‧ Outer Conveyor

(4) ‧‧‧Exchange System

(40) ‧‧‧Airtight Door

(41) ‧‧‧Airtight Door

(42) ‧‧‧Exchange Room

(5) ‧‧‧Pressure system

(6) ‧‧‧Upper heating device

(60) ‧‧‧Lower heating device

(61) ‧‧‧Heating block

(62) ‧‧‧Base

(63) ‧‧‧Slot

(64) ‧‧‧Heating surface

(65) ‧‧‧Slot Rail

(66) ‧‧‧Open End

(7) ‧‧‧Mould

(8) ‧‧‧Heating element

(80) ‧‧‧Electric heating element

(81) ‧‧‧Protection tube

(82) ‧‧‧Fixture

(83) ‧‧‧Terminal

(84) ‧‧‧Airtight Seal

(85) ‧‧‧Adiabatic layer

Fig. 1 is a plan view of a conventional heating device; Fig. 2 is a front cross-sectional view of a molded three-dimensional glass continuous molding device according to the present invention; Fig. 3 is a top cross-sectional view of a molded three-dimensional glass continuous molding device according to the present invention; Plan view of an example heating device; FIG. 5 is a sectional view of a heating element according to an example of the present invention.

In order to achieve the above-mentioned technical means of the present invention, an embodiment will be enumerated, and the drawings will be explained later. Your review committee can obtain a better understanding of the structure, features, and effects of the present invention.

The present invention is a new design of the heating device structure especially for the three-dimensional molded glass continuous molding device. First, please refer to Figs. 2 and 3, the heating device of the present invention is provided in the three-dimensional molded glass continuous molding device. The device is mainly composed of a furnace. The body (1), the inner conveying path (2), the outer conveying path (3), the exchange system (4), and the pressurizing system (5) are formed. The inner conveying path (2) is provided inside the furnace body (1), And the exchange system (4) provided on the two sides of the furnace body (1), the outer conveying channel (3) provided on the outside of the furnace body (1), and the exchange system (4) on the two sides of the furnace body (1), the The furnace body (1) is sealed and introduces a protective gas [the device for providing a protective gas is a conventional technology, not to go into details], and according to the process, it is divided into a heating and high-temperature forming zone (10), a slow-down zone (11) and a cooling zone (12), the heat-resistant high-temperature molding zone (10) and the slow-down zone (11) have heat-resistant materials [heat-resistant materials are conventional technologies, not shown in the figure, not to go into details], and the cooling zone (12) has a cooling device [cooling device For the use of technology, I do n’t need to go into details.] The heating and high temperature forming zone (10), slow down zone (11) and cooling zone (12) are equipped with a pressurizing system (5) above the heating and high temperature forming. (10) and each of the pressurizing systems (5) of the slow-down zone (11) are combined with an upper heating device (6), and each upper heating device (6) is provided with a lower heating device (60) below the furnace body, and the upper The heating device (6) and the lower heating device (60) are provided with heating elements (8). [The temperature control and other devices are customary techniques, not to repeat it], and the upper heating device (6) and the lower heating device (60) are heated according to the process program. ) To the required temperature, please refer to Figure 4, the heating device (6) (60) of the present invention [that includes the heating device (6) above the pressure system (5) and the heating device (6) located below it. The lower heating device (60) is composed of a heating block (61) and a base (62) that are integrally formed of a material with good heat conduction. The heating block (61) has a proper number of slots (63) to tightly combine the heating element ( 8), the heating block (61) is fixed on the base (62), and the base (62) is fixed on the predetermined position of the three-dimensional glass continuous molding device [ie, the heating and high temperature molding area (10) and each of the pressurizing systems (5) of the slow-down zone (11) are combined with an upper heating device (6), and each lower heating device (6) is provided with a lower heating device (60) below the furnace body. The heating surface (64) of the heating block (61) has a groove rail (65) as a track for the mold (7) to move. The flat glass to be molded is placed in the molding surface of the mold (7). When the mold (7) is pushed [The mold (7) is pushed into the lower heating device (60) inside the inner conveying channel. The predetermined position of the lower heating device (60) is pushed by a lever mechanism (not shown). It is a conventional technique. ] When the pressure system (5) is pressed down when the temperature rises in the high temperature region (10), the upper heating device (6) and the lower heating device (60) heat the mold to a set temperature, the post pressure system (5) rises, and the mold (7 ) Is pushed into the next lower heating device (60), and the pressure system (5) is pressed down to heat the upper heating device (6) and the lower heating device (60) to a set temperature, so that the inside of the mold (7) The glass to be formed is divided into stages, from preheating [to avoid damage caused by rapid temperature changes] to high temperature, to soften the glass and to form it by the pressure of the pressurizing system (5), and then to cool down the slow-down zone (11) [ Avoid temperature damage too fast] and the cooling zone (12) is sent out of the furnace body after cooling, and then demoulded, which has the effect of continuous, high efficiency and high quality molding and molding of three-dimensional glass.

Please refer to FIG. 2. According to the present invention, the exchange systems (4) provided on the two sides of the furnace body (1) each have two air-tight doors (40) (41) and form an exchange chamber (42). (7) Before being sent into the furnace body (1), the two airtight doors (40) (41) at the head end of the furnace body (1) are closed, and a vacuum is to be introduced into the exchange chamber (42) to introduce protective gas to After the same environment in the furnace body (1), the airtight door (41) inside the furnace is opened 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) and (41) at the rear end are closed, and the exchange chamber (42) has been evacuated and the protective gas has been introduced to the same environment as the furnace body (1). The airtight door (41) inside the furnace The square is opened and the mold (7) is pushed into the exchange chamber (42), so that it has the effect of preventing the furnace body (1) from mixing with the air outside the furnace to improve the molding quality of the component.

As mentioned above, please refer to FIG. 4. The heating device (6) (60) of the present invention [including the upper heating device (6) provided below the pressurizing system (5) and the lower heating device opposite to it (60)] is composed of a heating block (61) and a base (62) which are integrally formed of a material with good heat conduction, and the heating block (61) has an appropriate number of slot holes (63) to tightly combine the heating element (8), The heating block (61) is fixed on the base (62), and the base (62) is fixed on a predetermined position of the three-dimensional glass continuous molding device [ie, the pressure of the heating and high-temperature molding zone (10) and the slow-down zone (11)] An upper heating device (6) is combined below the system (5). Each upper heating device (6) is provided with a lower heating device (60) below the furnace body. Since the heating element (8) is connected to the heating block (61), Slot hole (63) is tightly combined [Heating element (8) is closely combined with the slot hole (63) of the heating block (61), for example: heating the heating block (61) to make the slot hole (63) thermally expand, and then Put the heating element (8) in and wait for the heating block (61) to cool, then you can tightly combine the heating element (8) in the slot (63)], and because the heating element (8) is connected to the heating block (61), The slot hole (63) is tightly coupled, and there is no gap between the heating element (8) and the slot hole (63), so there is no loss of heat conduction. When replacing, it replaces the heating block (61) and all heating elements (8) combined with the heating block (61), instead of replacing only a single heating element (8), so there will not be a single replacement of the single heating element (8). The lack of uneven heating temperature of the mold (7) has the effect of uniform heating temperature and high product yield. The base (62) is fixed at the predetermined position of the three-dimensional glass continuous molding device, and the heating block (61) is replaced. ), There is no need to remove the base (62), but the heating block (61) is directly screwed on the base (62), which is very fast and convenient. And because the heating block (61) is integrally formed, there is no conductive heat loss, so the thermal conductivity is good, and it is suitable for continuous molding of higher temperature three-dimensional molded glass.

The heating block (61) of the present invention has a groove rail (65) on the heating surface (64) as a track for the mold (7) to move, and two ends of the groove rail (65) have larger open ends (66), Eli mold (7) smoothly pushed into the fixed point.

Please refer to FIG. 5. The heating element (8) of the foregoing heating block (61) of the present invention mainly includes an electric heating element (80) [such as a heating wire] and an outer edge covering the electric heating element (80). Protection tube (81) [the protection tube (81) generally uses a quartz tube], the aforementioned electric heating element (80) is exposed at the two open ends of the protection tube (81), and forms a terminal (83). The protection tube (83 81) on the two sides of the open end and fixedly closed with a fixing member (82) [such as Huasi and nuts], the protective tube (81) is provided with an air-tight seal layer (84) on the open end on both sides, so that the protective tube (81 ) Forms a hermetically sealed state. Since the two sides of the protective tube (81) have a gas-sealed structure composed of an air-tight sealing layer (84), the gas in the atmosphere cannot penetrate into the protective tube (81) through the two sides of the protective tube. The electric heating element (80) in the protective tube (81) will not be damaged by erosion or any adverse reaction, so as to provide a high temperature for heating the heating block (61).

The aforementioned hermetically sealed layer (84) of the present invention may be composed of a ceramic sealant.

In the present invention, the inner end of the air-tight sealing layer (84) is further provided with a heat-insulating layer (85).

In summary, a "heating device for continuous molding of molded three-dimensional glass" disclosed in the present invention is not available in the past, and has not been seen in domestic and foreign publications. It is believed that the novel patent requirements have been established. It can eliminate the lack of customary technology and achieve the design purpose. It has also fully met the patent requirements and applied in accordance with the law. I would like to invite your reviewing committee to review it and grant the patent in this case.

However, the above is only one of the preferred feasible embodiments of the present invention, and is not intended to limit the scope of the present invention. For those skilled in the art, the equivalent structural changes made by using the description of the present invention and the scope of patent application Should be included in the patent scope of the present invention.

(6) ‧‧‧Upper heating device

(60) ‧‧‧Lower heating device

(61) ‧‧‧Heating block

(62) ‧‧‧Base

(63) ‧‧‧Slot

(64) ‧‧‧Heating surface

(65) ‧‧‧Slot Rail

(66) ‧‧‧Open End

(8) ‧‧‧Heating element

Claims (6)

A heating device for molding a three-dimensional glass continuous forming device is mainly composed of a heating block and a base that are integrally formed of a material with good thermal conductivity. The heating block has a proper number of slots to tightly combine the heating element, and the heating element and the heating block slot hole. There is no gap. The heating block is fixed on the base, and the base is fixed on a predetermined position of the three-dimensional continuous glass molding device. According to the heating device of the three-dimensional continuous molding device for molding a glass as described in item 1 of the scope of the patent application, wherein the heating block has a groove rail on the heating surface as a track for the mold to move. According to the heating device of the three-dimensional glass continuous molding device described in the scope of the patent application, the two ends of the groove rail on the heating surface of the heating block have larger open ends to facilitate the mold to smoothly enter the fixed point. For example, the heating device of the three-dimensional molded glass continuous molding device described in the scope of the patent application is improved. The heating element mainly includes an electric heating element and a protective tube covering the outer edge of the electric heating element. The heating element is exposed to the protection. The two ends of the open end of the tube form a terminal. The two ends of the open end of the protective tube are fixedly closed with a fixing member, and the open ends of the two sides of the protective tube are provided with a gas-tight sealing layer, so that the protective tube is hermetically sealed. Provide sufficient high temperature heating block. For example, the heating device of the three-dimensional molded glass continuous forming device described in the patent application No. 4 is improved, wherein the hermetically sealed layer is made of ceramic sealant. For example, the heating device of the three-dimensional molded glass continuous forming device described in the patent application No. 4 is improved, wherein the inner end of the air-tight sealing layer is further provided with a heat-insulating layer.