TWI606017B - Heating device for molding three-dimensional glass continuous molding device - Google Patents

Description

Heating device for molding three-dimensional glass continuous forming device

The invention belongs to the technical field of heating devices, in particular to the novel design of the heating device structure of the three-dimensional mold glass continuous forming device, has the effects of uniform heating temperature and high product yield, and is suitable for continuous molding of high temperature three-dimensional molding glass.

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.

The 3D three-dimensional molded glass forming machine is formed by the hot press forming technology, and the heating device directly heats the mold by using a heating device, which comprises a heating device disposed on the lower end of the pressing device and a heating device disposed below the lower portion, which is conventionally used. The heating device is shown in Fig. 1. It is mainly fixed by screws (A), heating block (B) and heating plate (C). The heating block (B) is provided with an appropriate quantity. Perforation (D), in which a rod type heating tube (E) is disposed, thereby heating the heating block (B), and transferring heat to the heating plate (C), and then heating the mold by the heating plate (C), and placing The flat glass to be formed on the mold forming surface is heated and softened to be molded in the mold. However, such a conventional heating device has a loss of heat conduction loss due to the combined heating block (B) and the heating plate (C) structure, and the rod type heating tube (E) cannot provide sufficient heating temperature to the mold. Today's glass softening The higher the temperature (especially the softening temperature of the aluminum-containing glass), the inability to meet the needs of the industry, is missing.

Applicant previously proposed the approved M524845 "heating device for molded three-dimensional glass continuous forming device" [July 1, 2010], which is specially designed for the new heating device structure of the three-dimensional die-making glass continuous forming device. The heat conduction block is integrally formed with a heating block, 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 conduction heat loss, and heat conduction is good, and the utility model is suitable for the high temperature stereo molding glass. Continuous molding. However, since the heating element of the former case is disposed in the slot of the heating block, if the heating element is damaged after use for a period of time, generally only the damaged heating element is replaced, so that when the newly replaced heating element is used and used for a while When the heating elements are used together, 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 yield of the molded three-dimensional glass product is always reduced, which 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. In view of this deficiency, the present invention proposes a better design, and the patent for the heating device of the molded three-dimensional 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 device for molding a three-dimensional glass continuous forming device", which is particularly designed for a new structure of a heating device for a three-dimensional molded glass continuous forming device, and the heating device of the present invention is made of a heat conduction material. Formed heating block and bottom The seat block has a suitable number of slots for tightly engaging the heating element, the heating block is fixed to the base by a detachable component, and the base is fixed to the predetermined position of the molded stereoscopic glass continuous forming device by a detachable component Since the heating element is tightly coupled with the heating block, the heating block is replaced and all the heating elements are combined on the heating block, so that the heating element is not replaced separately, resulting in a lack of heating temperature unevenness and uniform heating temperature. The product has high yield, and because the heating block is integrally formed, there is no conduction heat loss, and the heat conduction is good, and is suitable for continuous molding of the higher temperature stereo molding glass.

In the heating block of the present invention, the heating surface has a groove rail as a track for moving the mold, and the two ends of the groove rail have a large open end to facilitate the smooth pushing of the mold into the fixed point.

In the heating block of the present invention, the heating element is mainly provided with an electric heating element and a protection tube covering the outer edge of the electric heating element. The heating element is exposed at the open end of the protection tube and forms a terminal, and the protection tube is The two sides of the open end are fixedly closed by a fixing member, and the open end of the protective tube is provided with a gas seal sealing layer to form a gas seal state to provide a high temperature to heat the heating block.

(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) ‧‧‧ heating surface

(65) ‧‧‧ Groove rail

(66) ‧ ‧ open end

(7)‧‧‧Mold

(8) ‧‧‧ heating elements

(80)‧‧‧Electrical components

(81)‧‧‧Protection tube

(82) ‧‧‧Fixed parts

(83)‧‧‧ terminals

(84) ‧ ‧ gas seals

(85) ‧‧‧ Thermal insulation

1 is a plan view of a conventional heating device in a molded form; FIG. 2 is a front cross-sectional view showing a three-dimensional continuous glass forming device of the present invention; FIG. 3 is a cross-sectional view showing the upper end of the molded three-dimensional continuous glass forming device of the present invention; Example of a heating device; Fig. 5 is a cross-sectional view of a heating element 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 new design of a heating device structure for a three-dimensional molded glass continuous forming device. First, as shown in Figures 2 and 3, the heating device of the present invention is disposed in a three-dimensional molded glass continuous forming device, which 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), the inner conveying path (2) is disposed inside the furnace body (1), And connecting an exchange system (4) disposed on two sides of the furnace body (1), the outer conveying channel (3) is disposed outside the furnace body (1), and is connected to the exchange system (4) on both sides of the furnace body (1), The furnace body (1) is sealed and introduced with protective gas [the device for providing shielding gas is a conventional technology, not much to say], and the temperature-increasing high-temperature forming zone (10), the descending zone (11) and the cooling zone are distinguished according to the process. (12) The heat-increasing 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, and there are not many rumors], and the cooling zone (12) has a cooling device [cooling device] For the conventional technology, there are not many rumors], the heating system (5) is set above the temperature rising high temperature forming zone (10), the descending zone (11) and the cooling zone (12), and the temperature is raised at a high temperature. (10) and each of the pressing systems (5) of the descending area (11) is combined with an upper heating device (6), and each upper heating device (6) is provided with a lower heating device (60) opposite to the furnace body, The heating device (6) and the lower heating device (60) are provided with heating elements (8) [temperature control and other devices are conventional techniques, not much to say], and the upper heating device (6) and the lower heating device are heated according to the process program (60). ) to the required temperature, as shown in Fig. 4, the heating device (6) (60) of the present invention comprises the heating device (6) disposed under the pressurizing system (5) and oppositely disposed below The lower heating device (60) is composed of a heating block (61) and a base (62) integrally formed by a heat conduction material, and the heating block (61) has an appropriate number of slots (63) for tightly bonding the heating element ( 8) The heating block (61) is fixed to the base (62) by a detachable component, and the base (62) is fixed to the molded three-dimensional glass continuous forming device with a detachable component. The upper heating device (6) is combined under the pressing system (5) of the temperature rising high temperature forming zone (10) and the descending zone (11), and the upper heating device (6) is opposite to the furnace body. There is a lower heating device (60). The heating surface (64) of the heating block (61) has a groove rail (65) as a track for moving the mold (7), and the flat glass to be formed is placed in the molding surface of the mold (7), when the mold (7) is pushed On the lower heating device (60) in the inner conveying lane [the mold (7) is pushed into the inner conveying lane and the heating device (60) is at a predetermined position by using a lever mechanism (not shown), which is a conventional technique. 】, when the temperature is raised in the high temperature zone (10), the pressurizing system (5) is pressed to cause the upper heating device (6) and the lower heating device (60) to heat the mold to the set temperature, and then the pressurizing system (5) rises, the mold (7) ) is pushed into the next lower heating device (60), and the pressurizing system (5) is pressed down again to cause the upper heating device (6) and the lower heating device (60) to heat the mold to a set temperature so that the mold (7) The glass to be formed is staged by preheating [to avoid temperature damage too fast damage] to high temperature, so that the glass is softened and simultaneously formed by the pressurization of the pressurizing system (5), and then cooled by the descending zone (11). Avoid the temperature change is too fast damage] and the cooling zone (12) is cooled and sent out of the furnace body, and then demoulded, which has the effect of continuous, high efficiency and high quality molding of stereoscopic 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 mentioned above, please refer to Fig. 4, the heating device (6) (60) of the present invention [includes The heating device (6) disposed under the pressing system (5) and the heating device (60) disposed under the pressing system (5) are a heating block (61) and a base (62) integrally formed by a heat conduction material. The heating block (61) has an appropriate number of slots (63) for tightly engaging the heating element (8), and the heating block (61) is fixed to the base (62) by a detachable member. [Removable element, for example Bolts, fixing pins, etc., the base (62) is fixed to the predetermined position of the molded three-dimensional glass continuous forming device with a detachable component [ie, the heating system of the temperature rising high temperature forming zone (10) and the descending zone (11) ( 5) The upper heating device (6) is combined below, and each upper heating device (6) is provided with a lower heating device (60) opposite to the furnace body, because the heating element (8) is slotted with the heating block (61) (63) Tightly combining the heating element (8) with the slot (63) of the heating block (61), for example, heating the heating block (61) to cause the slot (63) to expand and expand, and then heating the component (8) Placement, after the heating block (61) is cooled, the heating element (8) can be tightly combined in the slot (63), and because the heating element (8) is connected to the slot of the heating block (61) ( 63) Closely integrated Between the heating element (8) and the slot (63) without a gap, so there is no loss of thermal conductivity. In the replacement, the heating block (61) and all the heating elements (8) on the heating block (61) are replaced, instead of only replacing the single heating element (8), so that the single heating element (8) is not replaced separately. The mold (7) is caused by the loss of uneven heating temperature, so that the heating temperature is uniform and the product yield is high, and the base (62) is fixed by the detachable component to the predetermined position of the molded stereoscopic glass continuous forming device. When the heating block (61) is replaced, the base (62) is not removed, and the heating block (61) is directly screwed to the base (62), which is very quick and convenient. Moreover, since the heating block (61) is integrally formed, there is no conduction heat loss, so the heat conduction is good, and it is suitable for continuous molding of the higher temperature stereo-molding glass.

In the heating block (61) of the present invention, the heating surface (64) has a groove rail (65) as a track for moving the mold (7), and the two ends of the groove rail (65) have a large open end (66). Eli Mould (7) smoothly pushed into the fixed point.

Referring to FIG. 5, the heating block (61) of the present invention is provided with a heating element (8) mainly comprising an electric heating element (80) [such as a heating wire] and a coating on the outer edge of the electric heating element (80). The protective tube (81) [the protective tube (81) is generally a quartz tube], and the aforementioned electric heating element (80) is exposed at the open end of the protective tube (81), and a terminal (83) is formed, the protective tube (81) ) The two sides of the open end are fixedly closed by a fixing member (82), such as a wire and a nut, and the airtight sealing layer (84) is provided at the open end on both sides of the protective tube (81) to protect the tube (81) In the gas seal state, since the gas seal structure composed of the gas seal sealing layer (84) is provided on both sides of the protection tube (81), the atmosphere atmosphere gas cannot penetrate into the protection tube (81) through the two sides of the protection tube, so This may cause erosion of the electric heating element (80) in the protective tube (81) or be affected by any adverse reaction to provide sufficient high temperature to heat the heating block (61).

The gas seal sealing layer (84) of the present invention may be composed of a ceramic sealant.

The inner end of the gas seal sealing layer (84) of the present invention is further provided with a heat insulating layer (85).

In summary, the "heating device for molding a three-dimensional glass continuous forming device" disclosed in the present invention has never been seen in the publications disclosed at home and abroad, and has a novel patent requirement, and the present invention is indeed Can eliminate the lack of customary technology, and achieve the design purpose, has also fully complied with the patent requirements, 提出 apply in accordance with the law, I would like to ask your review board to review, and give the patent in this case, really feel good.

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.

(6) ‧‧‧Upper heating device

(60) ‧‧‧ Lower heating unit

(61) ‧‧‧heating block

(62)‧‧‧Base

(63)‧‧‧Slots

(64) ‧‧‧ heating surface

(65) ‧‧‧ Groove rail

(66) ‧ ‧ open end

(8) ‧‧‧ heating elements

Claims (6)

The heating device for molding a three-dimensional glass continuous forming device is mainly composed of a heating block and a base integrally formed by a heat conduction material, the heating block having an appropriate number of slots for tightly bonding the heating element, and the heating element and the heating block slot There is no gap between them, and the heating block is fixed on the base by a detachable component, and the base is fixed at a predetermined position of the molded stereoscopic glass continuous forming device by a detachable component, and the heating block containing the heating component is replaced when the heating component is replaced. The base is not replaced and replaced with all the heating elements attached to the heating block. The heating device of the molded three-dimensional glass continuous forming device according to claim 1, wherein the heating block has a groove rail as a track for moving the mold. The heating device of the molded three-dimensional glass continuous forming device according to the second aspect of the invention, wherein the groove rail on the heating surface of the heating block has a larger open end at both ends, so as to facilitate the smooth pushing of the mold into the fixed point. The heating device of the three-dimensional molded glass continuous forming device according to claim 1, wherein the heating element mainly comprises an electric heating element and a protection tube covering the outer edge of the electric heating element, and the heating element is exposed to the protection. The open end of the tube is formed, and the terminal is formed, and the open end of the protective tube is fixedly closed by a fixing member, and the open end of the protective tube is provided with a gas-sealing sealing layer, so that the protective tube is formed into a gas-sealed state, Provide sufficient high temperature to heat the heating block. The heating device of the three-dimensional molded glass continuous forming device according to claim 4, wherein the gas seal sealing layer is composed of a ceramic sealant. The heating device of the three-dimensional molded glass continuous forming device according to claim 4, wherein the inner end of the gas seal sealing layer is further provided with a heat insulating layer.