TWI613159B - Airtight cavity thermal insulation layer of molded three-dimensional glass continuous forming device - Google Patents

Description

Airtight cavity thermal insulation layer of molded three-dimensional glass continuous forming device

The invention is particularly directed to a new designer of the airtight cavity thermal insulation layer of the continuous atmosphere sintering forming device for molding a three-dimensional glass product, which can effectively avoid the release of oxygen from the thermal insulation layer during heating, and eliminate the loss of oxidation loss of components such as molds.

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 set the flat glass material to Between an upper module and a lower module, the upper mold, the lower mold, and the glass material are heated 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. However, it is still unable to meet the industry's need for continuous and rapid manufacturing of high-quality molded three-dimensional glass.

Applicant previously proposed the approved M512584 "Molded Stereo Glass Continuous Molding Device", which is a new design for the continuous molding device designed for molded stereoscopic glass products. It is mainly composed of furnace body, inner conveyor, outer conveyor, exchange system and a pressurizing system, the inner conveying passage is disposed inside the furnace body, and is connected to an exchange system disposed on two sides of the furnace body, the outer conveying passage is disposed outside the furnace body, and is connected to the exchange system on both sides of the furnace body, and the inner conveying is performed The track is provided with a slide rail as a track for moving the carrier plate. The furnace body is sealed and introduced with protective gas, and the heating zone, the high temperature forming zone, the descending zone and the cooling zone are distinguished according to the process, and the heating zone and the high temperature molding are formed. The heating zone in the zone and the descending zone has a heat-resistant material and a temperature required for the process, and the cooling zone has a cooling device and a pressurized system. In the high temperature forming zone, the flat glass to be formed is placed in the molding surface of the mold, and the mold is placed on the carrier plate, and the furnace body is preheated in the temperature rising zone, and the high temperature in the high temperature forming zone softens the glass and is pressurized by the pressurizing system. After molding, it is cooled by the cooling zone of the slow down zone and cooled by the cooling zone, and then sent out of the furnace body, and then demolded, which can achieve the effect of continuous, high-efficiency and high-quality molding of stereoscopic glass. However, since the heat-resistant material in the heating zone and the high-temperature molding zone is generally made of an oxide material, oxygen ions in the heat-resistant material are released during heating, and the components such as the mold in the three-dimensional glass continuous molding device are molded. It is composed of metal or graphite, and the released oxygen ions will increase the oxygen content of the protective gas introduced into the continuous three-dimensional glass continuous forming device, so that the components such as the mold are degraded by their oxidation and their service life is lost. In response to this deficiency, a better design has been proposed to make the patent for the three-dimensional glass continuous forming device 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.

The main purpose of the present invention is to provide a "airtight cavity heat-dissipating layer of a molded three-dimensional glass continuous molding device", which is applied to a temperature rising zone and a high temperature molding zone in a continuous molding device for molding a three-dimensional glass product, which is mainly molded. At least one layer of thermal insulation layer is disposed in the airtight cavity of the three-dimensional glass continuous forming device and the high temperature forming zone, a heat field is formed in the center of the heat insulating layer, and an air layer is formed between the heat insulating layer and the airtight cavity, and the heat is broken The layer is made of graphite, which can effectively avoid the release of oxygen from the thermal insulation layer during heating, and eliminate the loss of oxidation loss of components such as molds.

In the heat-insulating layer of the present invention, when the heat-dissipating layer has two layers, the heat-dissipating layer is made of different materials, the inner layer is a graphite heat-dissipating layer, and the outer layer is a heat-insulating heat-dissipating layer, which can obtain better heat conduction and breakage. Heat and insulation effects.

(1)‧‧‧ furnace body

(2) ‧ ‧ exchange system

(20) ‧ ‧ inner airtight door

(21) ‧ ‧ outside airtight doors

(22) ‧ ‧ airtight space

(23) ‧‧‧displacement device

(3) ‧ ‧ airtight chamber

(30) ‧ ‧ airtight cavity

(300) ‧ ‧ air layer

(31) ‧ ‧ inner conveyor

(32) ‧‧ ‧ warming zone

(33) ‧‧‧High temperature forming zone

(34) ‧‧‧Cooling area

(35) ‧‧‧ Thermal insulation

(350) ‧‧‧ Lower platen

(351)‧‧‧ Graphite thermal insulation

(352) ‧‧‧Insulation thermal insulation

(36)‧‧‧Hot field

(37) ‧‧‧Heating elements

(38) ‧‧‧Cooling device

(39)‧‧‧Slide rails

(4) ‧‧‧Outer transport lanes

(5) ‧‧‧ Pressurized system

(50)‧‧‧Cylinder

(51) ‧‧‧Pressure shaft

(52) ‧ ‧ pressurized column

(53) ‧‧‧Cooling device

(6) ‧‧‧ Carrier Board

(7)‧‧‧Mold

(8)‧‧‧Support devices

(80)‧‧‧Support column

(81)‧‧‧ Lifting device

1 is a front cross-sectional view of an embodiment of the present invention; FIG. 2 is a cross-sectional view of an embodiment of the present invention; FIG. 3 is a cross-sectional view of a temperature rising region of an embodiment of the present invention; Area map.

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 molded three-dimensional glass continuous forming device used in the present invention 5, as shown in Figures 1 and 2, mainly includes: a furnace body (1), which is a closed type, and a switching system is provided at the outer two ends of the furnace body (1). (2) The inside of the furnace body (1) is provided with a gas-tight chamber (3); the exchange system (2) is arranged at the two ends of the furnace body (1), and the furnace body (1) is provided between the two-end exchange system (2) The outer conveyor (4), each of the exchange systems (2) includes an inner airtight door (20) disposed on the side of the furnace body (1) and an airtight door (21) disposed outside the outer conveyor (4) side. An airtight space (22) is formed between the inner airtight door (20) and the outer airtight door (21), and a displacement device (23) is provided to push the carrier plate (6) into or out of the furnace body (1); The cavity (3) is disposed inside the furnace body (1) and includes an airtight cavity (30). The airtight cavity (30) has an inner conveying path (31), and the inner conveying path (31) is coupled to the furnace body ( 1) The inner airtight door (20) of the two-end exchange system (2) is provided with a slide rail (39) [please refer to Fig. 3 and Fig. 4] as a moving rail of the carrier board (6). The dense chamber (3) is airtight and is supplied with a shielding gas [generally an inert gas such as nitrogen; The device for protecting the gas is a conventional technology, and there are many rumors, and the heating zone (32), the high temperature forming zone (33) and the cooling zone (34), the heating zone (32) and the high temperature forming zone (33) are distinguished by the process. At least one layer of thermal insulation layer (35) is provided (the second embodiment is shown in the figure), and a thermal field (36) is formed in the center of the thermal insulation layer (35), and the temperature required by the process program is set in the thermal field (36). Heating element (37) [temperature control and other devices are conventional techniques, not much to say], cooling zone (34) has cooling device (38) [cooling device (38) is a conventional technology, not much rumor], high pressure forming zone (33) ) with a pressurization system (5); an outer conveyor (4), a furnace (1) two-end exchange system (2); a pressurization system (5), see the pressure system (see Figure 4) 5) Mainly composed of a pressure cylinder (50), a pressurizing shaft (51) and a pressurizing column (52); in the present invention, the flat glass to be formed is placed in the molding surface of the mold (7), and the mold (7) is Placed on the carrier board (6), the carrier board (6) enters the airtight chamber (3) via the exchange system (2), preheats through the temperature rising zone (32) [to avoid temperature changes too fast damage], and high temperature forming zone (33) The high temperature makes the in-mold glass soften and borrow Voltage system (5) of the molding pressure, and then cooling the cooling zone (34), the exchange of the system (2) feeding the furnace (1) outside, then from the release.

Referring to FIG. 2, the present invention is provided on the exchange system (2) on both sides of the furnace body (1), and each exchange system (2) includes an inner airtight door (20) disposed on the side of the furnace body (1). And an airtight door (21) disposed outside the outer conveyor (4) side, and an airtight space (22) formed between the inner airtight door (20) and the outer airtight door (21), when the carrier plate (6) is Before being fed into the furnace body (1), the inner airtight door (20) and the outer airtight door (21) at the head end of the furnace body (1) are closed, and a vacuum is applied in the airtight space (22) and a shielding gas is introduced thereto. After the same environment as in the airtight chamber (3) [the vacuum process will remove the air (especially oxygen) and impurities from the mold (7)], and the airtight door (20) in the furnace side opens. Push the carrier plate (6) into the airtight chamber (3). Before the carrier plate (6) is sent out of the airtight chamber (3), the inner airtight door (20) and the outer airtight door at the tail end of the furnace body ( 21) is closed, and the airtight space (22) has been evacuated and Introduce the shielding gas into the same environment as in the airtight chamber (3), and open the airtight door (20) on the side of the furnace body to push the carrier plate (6) into the airtight space (22), thus avoiding the airtight cavity ( 3) The air inside the furnace is mixed to improve the forming quality of the three-dimensional glass component.

The airtight cavity heat-dissipating layer of the molded three-dimensional glass continuous forming device provided by the invention is used for the temperature rising zone and the high temperature forming zone in the continuous molding device for molding a three-dimensional glass product, as shown in Figures 3 and 4, The utility model is mainly provided with at least one thermal insulation layer (35) in the air-tight cavity (3) of the temperature rising zone and the high temperature molding zone in the mold-making three-dimensional glass continuous molding device, and the heat field (36) is formed in the center of the heat insulation layer (35). An air layer (300) is disposed between the thermal insulation layer (35) and the airtight cavity (30), and the thermal insulation layer (35) is made of graphite, which can effectively prevent oxygen from being released from the thermal insulation layer (35) during heating. Eliminate the lack of oxidation loss of components such as the mold (7).

In the heat-insulating layer (35) of the present invention, when the heat-dissipating layer has two layers, the heat-dissipating layer (35) is made of different materials, and the inner layer is a graphite heat-dissipating layer (351), and the outer layer is a heat-insulating heat-dissipating layer ( 352), which can achieve better heat conduction, heat insulation and heat insulation effects.

In summary, the present invention discloses a "airtight cavity heat-dissipating layer of a molded three-dimensional glass continuous forming device" which has never been seen in the publications disclosed 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. I would like to 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.

(1)‧‧‧ furnace body

(3) ‧ ‧ airtight chamber

(30) ‧ ‧ airtight cavity

(300) ‧ ‧ air layer

(31) ‧ ‧ inner conveyor

(35) ‧‧‧ Thermal insulation

(350) ‧‧‧ Lower platen

(351)‧‧‧ Graphite thermal insulation

(352) ‧‧‧Insulation thermal insulation

(36)‧‧‧Hot field

(37) ‧‧‧Heating elements

(39)‧‧‧Slide rails

(5) ‧‧‧ Pressurized system

(50)‧‧‧Cylinder

(51) ‧‧‧Pressure shaft

(52) ‧ ‧ pressurized column

(53) ‧‧‧Cooling device

(6) ‧‧‧ Carrier Board

(7)‧‧‧Mold

(8)‧‧‧Support devices

(80)‧‧‧Support column

(81)‧‧‧ Lifting device

Claims (1)

The airtight cavity heat-dissipating layer of the moulded three-dimensional glass continuous forming device mainly comprises: a furnace body, which is sealed, and an exchange system is arranged at two ends of the furnace body, and an airtight chamber is arranged inside the furnace body; the exchange system is arranged at At the two ends of the furnace body, there is an outer conveying passage between the two end exchange systems of the furnace body, and each exchange system includes an inner airtight door disposed on the side of the furnace body and an airtight door disposed outside the outer conveying passage side, and the inner airtight door An airtight space is formed between the outer airtight door, and a displacement device is arranged to push the carrier plate into or out of the furnace body; the airtight cavity is disposed inside the furnace body, and includes an airtight cavity, and the airtight cavity has an inner conveying channel The inner conveying channel is connected with the airtight door in the two-end exchange system of the furnace body, and is provided with a sliding rail as a track for moving the carrier plate, the airtight cavity is airtight, and the shielding gas is introduced, and the temperature is divided according to the process. The zone, the high temperature forming zone and the cooling zone, the heating zone and the high temperature forming zone are provided with at least two layers of thermal insulation layers, the two thermal insulation layers are composed of different materials, the inner layer is a graphite thermal insulation layer composed of graphite, and the outer layer is Insulation thermal insulation layer, heat field formed in the center of graphite thermal insulation layer There is an air layer between the airtight cavity and a heating element in the heat field according to the temperature required by the process program, the cooling zone has a cooling device, the high pressure forming zone is provided with a pressurizing system, and the outer conveying channel is connected with the two ends of the furnace body. The system; the pressurization system is mainly composed of a pressure cylinder, a pressurizing shaft and a pressurizing column; and the present invention thus constructed, the flat glass to be formed is placed in the mold forming surface, the mold is placed on the carrier board, and the carrier board is exchanged. Entering the airtight chamber, preheating in the temperature rising zone, and high temperature in the high temperature forming zone, the in-mold glass is softened and formed by the pressurization of the pressurized system, and then cooled by the cooling zone, and then sent out to the furnace body through the exchange system. External, and then demoulded.