TWI636023B - Airtight continuous hot press forming device - Google Patents

Abstract

The invention relates to a gas-tight continuous hot press forming device, which mainly comprises a closed furnace body, an exchange system is arranged at two ends of the furnace body, and a conveyor channel is connected outside the exchange system, and an airtight chamber is arranged inside the furnace body, which is airtight. The inner conveying channel is arranged in the cavity, the inner conveying channel is connected with the two-end exchange system of the furnace body, and the sliding rail is provided as a track for moving the carrier plate, the airtight cavity is airtight, and the shielding gas is introduced, and according to the manufacturing process There is a temperature rising zone, a high temperature forming zone and a cooling zone, and at least one layer of thermal insulation layer is formed in the temperature rising zone and the high temperature forming zone, and a heat field is formed in the center of the heat breaking layer, and a reflecting plate is arranged on the outer edge of the heat insulating layer, and the heat field is provided therein. The heating element has a temperature required for the process program, the cooling zone has a cooling device, and the high temperature forming zone is provided with a pressurizing system, wherein the hot pressed product is placed in the molding surface of the mold, the mold is placed on the carrier plate, and the carrier plate is pushed into the gas. The preheating of the dense cavity through the temperature rising zone and the high temperature of the high temperature forming zone soften the hot-pressed molded product and press-formed by a pressurizing system, and then cooled by the cooling zone and then sent out of the furnace body, and then demolded. Continuous, high efficiency and high Mass effect.

Description

Airtight continuous hot press forming device

The invention is particularly directed to a new designer of a gas-tight continuous atmosphere sintering forming device for hot-pressed products, which has the advantages of continuous, high-efficiency and high-quality hot-pressed products, more uniform temperature in the thermal field, and reduced heat. The heat loss in the field reaches the energy saving effect.

Press, hot press forming is a method of processing polymer materials, mainly by placing a material with a certain thickness in a mold, heating the mold or the environment, softening the material to cover the surface of the mold, and then pressing the machine through the cooling stage. After curing, a hot formed product can be obtained.

For hot-pressed materials, for example, glass has high light transmission characteristics, so display devices (such as mobile phones, watches and other electronic products) are selected as the outer casing of the window. 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 growing at the length The square glass is ground 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. In general, since the glass material is a flat plate, if a glass having a shape is to be produced, it is preferable to arrange a flat glass material between an upper mold and a lower mold, and then heat the upper mold. Pieces, lower molds and glass materials to soften the glass material. When the glass material is softened, the upper mold member and the lower mold member can be clamped, so that the upper mold member and the lower mold member together shape the shape of the glass material along a mold clamping direction, thereby producing a corresponding molded glass. . China Patent Publication No. M452174 "Molding Equipment for Molding Glass" (refer to the patent publication date of the announcement date of May 1, 2013), which comprises a female mold part, a first male mold part, and a second public A mold part, a support ram and a pressure bar. The first male mold member is disposed on the female mold member in an openable manner, and the second male mold member is disposed between the female mold member and the first male mold member. The support ejector is disposed on the female mold member, and the support ejector rod is used for pushing the second male mold member to support the second male mold member and the first male mold member A molded glass. The pressing rod is disposed on one side of the first male mold part, and the pressing rod is used for pressing down the first male mold part such that the first male mold part is opposite to the second male mold part The master mold member is moved to a clamping position to form the molded glass. 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 M536234 "Airtight Molded Stereoscopic Glass Continuous Forming Device", which is a new design for continuous molding of molded three-dimensional glass products. It is mainly composed of furnace body, closed type, and external body of furnace. The exchange system is provided at the end, and the airtight cavity is arranged inside the furnace body; the exchange system is arranged at the two ends of the furnace body, and the outer conveying lane is arranged between the two end exchange systems of the furnace body, and each exchange system comprises a side disposed on the side of the furnace body Airtight doors and airtight doors located outside the outer conveyor side, An airtight space is formed between the inner airtight door and the outer airtight door, and a displacement device is provided to push the carrier plate into or out of the furnace body; the airtight cavity is disposed inside the furnace body, including the airtight cavity, and the airtight cavity body The utility model has an inner conveying lane, and the inner conveying lane connects 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 process has a temperature rising zone, a high temperature forming zone and a cooling zone, and at least one thermal insulation layer is provided in the heating zone and the high temperature forming zone, and a thermal field is formed in the center of the thermal insulation layer, and the temperature required by the process program is set in the thermal field. Heating element, the cooling zone has a cooling device, the high pressure forming zone is provided with a pressurizing system; the outer conveying lane is connected with the two-end exchange system of the furnace body; the pressurizing system is mainly composed of a pressure cylinder, a pressurizing shaft and a pressurizing column; According to the invention, 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 carrier plate enters the airtight chamber through the exchange system, the preheating in the temperature rising zone, and the high temperature in the high temperature forming zone, so that the mold is in the mold. The glass softens and is pressurized by a pressurized system After molding, it is cooled by the cooling zone, sent out of the furnace body through the exchange system, and then demolded, which can achieve the effect of continuous, high-efficiency and high-quality molding of the three-dimensional glass. However, due to the increasingly high softening temperature of glass today (especially the softening temperature of aluminum-containing glass is higher), in addition, hot press forming materials other than glass, such as hot pressing of metal, ceramic or cermet heterogeneous composite materials, Since the temperature requirements of the airtight cavity are higher and more uniform, it is necessary to design a better design for the thermal field of the forming device, and the patent of the continuous hot press 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.

The main purpose of the present invention is to provide a "airtight continuous hot press forming". The present invention relates to a novel design of a gas-tight continuous atmosphere sintering forming device for a hot press formed product, which mainly comprises a closed furnace body, an exchange system is arranged at the outer end of the furnace body, and a conveyor line is connected outside the exchange system. The inside of the body is provided with a gas-tight cavity, the inner air transport channel is provided with an inner conveying channel, the inner conveying channel is connected with the two-end exchange system of the furnace body, and a sliding rail is provided as a track for moving the carrier plate, and the airtight cavity is airtight. And introducing a shielding gas, and according to the process, there is a temperature rising zone, a high temperature forming zone and a cooling zone, and at least one thermal insulation layer is provided in the heating zone and the high temperature molding zone, and a thermal field is formed in the center of the thermal insulation layer, outside the thermal insulation layer The edge is provided with a reflecting plate, the heating field is provided with a heating element according to the temperature required by the process program, the cooling zone has a cooling device, and the high temperature forming zone is provided with a pressing system, and the hot pressed molding is placed in the molding surface of the mold, and the mold is placed On the carrier board, the carrier plate is pushed into the airtight chamber for preheating in the temperature rising zone, and the high temperature in the high temperature forming zone softens the hot pressed molding and is pressurized by the pressurization system, and then cooled by the cooling zone. Outside the furnace body, Release is made, in addition to a continuous, high efficiency and high quality compression molding product efficacy, but also has a more uniform temperature field of the heat, and reduce the heat loss of heat within the field of energy-saving effect.

The pressure system of the present invention mainly comprises a pressure cylinder, a pressure shaft and a pressure column, and the pressure column is made of graphite or graphite composite material, and has high temperature resistance, and a cooling device is arranged at the upper end of the pressure column to avoid overheating of the pressure column. damage.

The high temperature forming zone of the airtight cavity of the invention further comprises a lower pressing plate, and a supporting device composed of a supporting column and an adjusting device is arranged below the lower pressing plate, and when the pressing system is actuated, the supporting plate top can be pressed against the lower pressing plate to effectively Support the carrier plate to avoid breakage. When the level or angle of the lower platen is deviated, the adjustment device can be used to adjust the top of the support column against the lower platen to the correct horizontal position to effectively support the carrier plate and avoid breakage.

The airtight cavity of the present invention has at least one layer in the temperature rising zone and the high temperature molding zone. The heat-dissipating layer is provided with a reflecting plate on the outer edge of the heat-dissipating layer, and an air layer is formed between the reflecting plate and the air-tight cavity, so that better heat insulation and heat-dissipating effect can be obtained.

(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)‧‧‧reflector

(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) ‧‧‧Adjustment 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 present invention is directed to a novel design of a gas-tight continuous atmosphere sintering molding apparatus for a hot press formed product, and the hot press forming material of the present invention includes, but is not limited to, a glass, a metal, a ceramic or a cermet heterogeneous composite material. Please refer to the figures 1 and 2, which mainly include: the furnace body (1), which is closed, the outer part of the furnace body (1) is provided with an exchange system (2), and the furnace body (1) is provided with gas inside. Close chamber (3); exchange system (2), located at the two ends of the furnace body (1), the furnace body (1) two-end exchange system (2) with an outer conveyor (4), each exchange system (2) The utility model comprises an inner airtight door (20) arranged on the side of the furnace body (1), an airtight door (21) disposed outside the outer conveying path (4) side, an inner airtight door (20) and an outer airtight door ( 21) an airtight space (22) is formed, and a displacement device (23) is provided to push the carrier plate (6) into or out of the furnace body (1); the airtight chamber (3) is disposed inside the furnace body (1) The utility model comprises an airtight cavity (30), an inner conveying lane (31) in the airtight cavity (30), an inner conveying lane (31) connecting the furnace body (1) and a two-end exchange system (2) Door (20) with slide rails (39) [please refer to Figures 3 and 4] to serve as a moving track for the carrier (6). The airtight chamber (3) is airtight and imported. Protective gas [usually inert gas, such as nitrogen; the device providing shielding gas is a conventional technology, not much to say], and according to the process, there are temperature rising zone (32), high temperature forming zone (33) and cooling zone (34), heating up At least one thermal insulation layer (35) is disposed in the region (32) and the high temperature molding zone (33), and a thermal field (36) is formed in the center of the thermal insulation layer (35), and a reflector is disposed on the outer edge of the thermal insulation layer (35). (351), the heating field (37) is provided in the thermal field (36) according to the temperature required by the process program [the temperature control device is a conventional technology, not much rumor], and the cooling zone (34) has a cooling device (38) [ The cooling device (38) is a conventional technology, not much to say], the high temperature forming zone (33) is provided with a pressurizing system (5); the outer conveying channel (4) is coupled to the furnace body (1) two-end exchange system (2); The pressurizing system (5), as shown in Fig. 4, the pressurizing system (5) is mainly composed of a press cylinder (50), a pressurizing shaft (51) and a pressurizing column (52); The hot-pressed product is placed in the molding surface of the mold (7), and the mold is (7) is placed on the carrier board (6), the carrier board (6) enters the airtight chamber (3) via the exchange system (2), and is preheated by the temperature rising zone (32) [to avoid temperature damage being too fast damaged], And the high temperature of the high temperature forming zone (33), the mold to be hot-pressed in the mold is softened, and is formed by the pressurization of the pressurizing system (5), and then cooled by the cooling zone (34), through the exchange system (2) ) It is sent out of the furnace body (1) and then released from the mold. It has the functions of continuous, high efficiency and high quality thermoforming products. Furthermore, since the outer edge of the thermal insulation layer (35) is provided with a reflecting plate (351), the heat in the thermal field (36) is absorbed by the thermal insulation layer (35), and the heat absorbed by the thermal insulation layer (35) is borrowed. The heat is reflected back to the heat field (36) by the reflecting plate (351), so that the temperature in the heat field (36) is more uniform, and the heat loss can be reduced, thereby achieving the effect of uniform temperature saving.

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 located on the side of the outer conveyor (4) An external airtight door (21) forms an airtight space (22) between the inner airtight door (20) and the outer airtight door (21). Before the carrier plate (6) is fed into the furnace body (1), the furnace body (1) The inner airtight door (20) and the outer airtight door (21) at the head end are closed, and after the vacuum is applied in the airtight space (22) and the shielding gas is introduced into 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) inside the furnace side will open and push the carrier (6) into the airtight chamber. (3) Inside, before the carrier plate (6) is sent out of the airtight chamber (3), the inner airtight door (20) and the outer airtight door (21) at the tail end of the furnace body are closed, and the airtight space (22) The vacuum has been evacuated and the shielding gas has been introduced into the same environment as in the airtight chamber (3), and the inner airtight door (20) of the furnace side is opened to push the carrier plate (6) into the airtight space (22). The utility model can prevent the air in the airtight chamber (3) from being mixed into the air outside the furnace to improve the molding quality of the hot-pressed product.

Referring to FIG. 4, as described above, the pressurizing system (5) of the present invention mainly comprises a press cylinder (50), a pressurizing shaft (51) and a pressurizing column (52), and the pressurizing column ( 52) It is made of graphite or graphite composite material to withstand high temperature; the upper end of the pressurizing column (52) has a cooling device (53) to avoid overheating damage of the pressurizing column (52).

Referring to FIG. 4, the high temperature forming zone (33) of the airtight cavity (3) of the present invention further includes a lower pressing plate (350), and the supporting column (80) and the adjusting device are disposed under the lower pressing plate (350). (81) The supporting device (8), when the pressing system (5) is actuated, can be supported by the supporting column (80) against the lower pressing plate (350) to effectively support the carrier plate (6) to avoid breakage, when the lower pressing plate (350) When the level or angle is deviated, the adjusting column (81) can be used to adjust the support column (80) against the lower pressing plate (350) to the correct horizontal position to effectively support the carrier plate (6) to avoid breakage.

The airtight cavity (3) of the present invention is provided with at least one thermal insulation layer (35) in the temperature rising zone (32) and the high temperature molding zone (33), and the thermal insulation layer (35) is a graphite thermal insulation layer. The outer edge of the heat-dissipating layer (35) is provided with a reflecting plate (351), and an air layer (300) is provided between the reflecting plate (351) and the airtight cavity (30), which is better. Insulation, heat insulation effect.

In summary, the "gas-tight continuous hot press forming device" disclosed in the present invention has not been seen in the publications disclosed at home and abroad, and has a novel patent requirement, and the present invention can indeed Excluding the lack of customary technology and achieving the design goal, it has also fully complied with the patent requirements, and applied for it according to law. I would like to ask your review committee to give a review and give the patent in this case.

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

Claims (4)

The invention relates to a gas-tight continuous hot press forming device, which mainly comprises: a furnace body, which is a closed type, an exchange system is arranged at two ends of the furnace body, an airtight chamber is arranged inside the furnace body, and an exchange system is arranged at the two ends of the furnace body. An outer conveying passage is arranged between the two-end exchange system of the furnace body, and each exchange system comprises an inner airtight door disposed on the side of the furnace body and an airtight door disposed outside the outer conveying lane side, and an inner airtight door and an outer airtight door. Forming an airtight space, and providing a displacement device 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, the airtight cavity has an inner conveying lane, and the inner conveying lane is connected The airtight door in the two-end exchange system of the furnace body 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 heating zone and the high temperature forming zone are distinguished according to the process. And a cooling zone, a heating zone and a high temperature forming zone are provided with at least one thermal insulation layer, wherein the thermal insulation layer is a graphite thermal insulation layer, and a thermal field is formed in the center of the thermal insulation layer, and a reflector is arranged on the outer edge of the thermal insulation layer, and the reflection plate It is made of high temperature resistant ceramic material, which has an air layer and a heat field between the airtight cavity. There is a heating element according to the temperature required by the process, the cooling zone has a cooling device, the high temperature forming zone is provided with a pressurizing system, the outer conveying channel is connected with the two-end exchange system of the furnace body, and the pressurizing system is mainly composed of a pressure cylinder and a heating system. The pressing shaft is composed of a pressing column which is made of graphite or graphite composite material; in the invention, the hot-pressed product is placed in the molding surface of the mold, and the mold is placed on the carrier plate, and the carrier plate is placed on the carrier plate. The exchange system enters the airtight chamber, the preheating in the temperature rising zone, and the high temperature in the high temperature forming zone, so that the hot-pressed molding in the mold is softened, and is formed by the pressurization of the pressurizing system, and then cooled by the cooling zone. It is sent out from the outside of the furnace through the exchange system and then released from the mold. The gas-tight continuous hot press forming apparatus according to claim 1, wherein the adding The upper end of the pressure system pressurized column has a cooling device. The airtight continuous hot press forming device according to claim 1, wherein the high temperature forming zone of the airtight cavity further comprises a lower pressing plate, and a supporting device composed of a supporting column is disposed under the lower pressing plate. When the pressurized system is actuated, the support plate can be pressed against the lower platen to effectively support the carrier plate to avoid breakage. The airtight continuous hot press forming device according to claim 3, wherein the supporting device comprises an adjusting device disposed under the supporting column, and when the level or angle of the lower pressing plate is deviated, the adjusting device can be used to adjust the support. The top of the column abuts the platen to the correct horizontal position.