CN207422873U - Heating components of airtight continuous thermocompression molding equipment - Google Patents

Abstract

The utility model discloses a heating component, which is particularly suitable for a novel design of a heating component structure of an airtight continuous hot pressing molding device. The heating component of the utility model mainly comprises an impedance body and a protective layer covering the outer edge of the impedance body to form an insulating and airtight layer, wherein two ends of the impedance body are exposed at two ends of the protective layer to form wiring terminals; the protective layer is composed of high-purity aluminum oxide or silicon carbide, and has the effect of protecting the impedance body from corrosion or adverse reactions, and is particularly suitable for high-temperature airtight continuous hot pressing molding devices.

Description

Heating components of airtight continuous thermocompression molding equipment

technical field

The utility model belongs to the technical field of heaters, and is especially suitable for the new design of the heating component structure of the airtight continuous hot pressing forming device, which has the effect of protecting the group antibody from being affected by erosion or adverse reactions, and is especially suitable for the high temperature airtight continuous Thermoforming device.

Background technique

Press, hot pressing is a processing method of polymer materials, mainly put a material with a certain thickness in the mold, heat the mold or the environment, so that the material softens and covers the surface of the mold, and then squeezed by the machine, after cooling After stage curing, a thermoformed product can be obtained.

The materials for thermoforming, take glass as an example, because glass has high light transmission characteristics, so display devices (such as mobile phones, watches and other electronic products) often choose it as the shell of the window part. You can see that the surface of handheld electronic products 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 a seam will be 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 glass casings of electronic products.

The flat glass case is relatively easy to manufacture, but the glass case with a three-dimensional shape is relatively difficult to manufacture. At present, there are generally two methods for manufacturing a three-dimensional glass case: the first method is: manufacturing a plurality of flat glass units, and then forming a three-dimensional glass case by pasting the edges. The second method is to manufacture a rectangular parallelepiped glass with a certain thickness, and then grind the rectangular parallelepiped glass multiple 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 arrange the flat glass material between an upper mold and a lower mold, and then heat the upper mold , the lower module and the glass material to soften the glass material. When the above-mentioned glass material is softened, the upper mold and the lower mold can perform a mold closing action, so that the upper mold and the lower mold can jointly shape the shape of the glass material along a mold-closing direction, so as to produce the corresponding molded glass . China Taiwan Patent Announcement No. M452174 "Molding Equipment for Manufacturing Molded Glass" (announcement date May 01, 2013 patent announcement data reference), which includes a female mold part, a first male mold part, a second A male mold part, a supporting ejector rod and a pressing rod. The first male mold part is arranged on the female mold part in an openable and closable manner, and the second male mold part is arranged between the female mold part and the first male mold part. The supporting ejector rod is passed through the female mold part, and the supporting ejector rod is used to push against the second male mold part, so as to support the second male mold part and the first male mold part to be clamped together A molded glass. The pressing rod is arranged on one side of the first male mold part, and the pressing rod is used to press down on 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 clamping position for molding the molded glass.

The applicant previously proposed the approved No. M536234 "airtight molded three-dimensional glass continuous molding device", which is a new design for the continuous molding device designed for molding three-dimensional glass products. It is mainly composed of a furnace body, which is airtight. There is an exchange system at the end of the furnace body, and an airtight cavity is provided inside the furnace body; the exchange system is located at both ends of the furnace body, and an outer conveyor is provided between the exchange systems at the two ends of the furnace body. The airtight door and the outer airtight door located on the side of the outer conveying path form an airtight space 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 chamber, It is located inside the furnace body, including an airtight cavity, which has an inner conveying channel, which is connected to the inner airtight door of the exchange system at the two ends of the furnace body, and is equipped with slide rails to serve as the track for the carrier plate to move , the airtight cavity is airtight, and the protective gas is introduced, and there are heating zone, high temperature forming zone and cooling zone according to the process. A thermal field is formed in the center of the layer, in which there are heating components depending on the temperature required by the process procedure, a cooling device is provided in the cooling area, and a pressurization system is provided in the high-pressure forming area; the outer conveying channel is connected to the two-end exchange system of the furnace body; the pressurization The system is mainly composed of a pressure cylinder, a pressure shaft and a pressure column; the flat glass to be formed is placed on the molding surface of the mold, and the mold is placed on the carrier plate. Heat, and the high temperature in the high-temperature forming area soften the glass in the mold, and it is formed by the pressure of the pressurized system, and then cooled in the cooling area, sent out of the furnace body through the exchange system, and then demoulded. It can achieve the effects of continuous, high-efficiency and high-quality molding of three-dimensional glass.

Please refer to Figure 1 for a conventional heater, which mainly includes an electric heating element A and a protective tube B covering the outer edge of the electric heating element A [protection tubes are generally quartz tubes], and the aforementioned heating element A is exposed to the protective tube B The two open ends of the tube form a terminal D, and the two sides of the open end of the protection tube B are fixed and closed with a fixing piece C to close the overall structure. This kind of conventional heater is widely used in household appliances and mechanical fields requiring heating. However, when the heater with this structure is used in the heating of the airtight three-dimensional glass continuous molding device, since there is no air-tight structure on both sides of the protective tube, the gas in the atmosphere [such as nitrogen, hydrogen, argon, chlorine .. etc., some atmosphere gases are corrosive] and will penetrate into the protective tube through both sides of the protective tube, which will cause corrosion damage to the heating element in the protective tube, or cause its loss due to adverse reactions. Furthermore, since the softening temperature of glass is getting higher and higher, especially the softening temperature of aluminum-containing glass, in addition, the thermoforming materials other than glass, such as metal, ceramic or cermet heterogeneous composite materials, etc. , due to the higher temperature requirements in the thermal field of the airtight cavity, the protection tube of the conventional heating element made of quartz cannot meet the high temperature requirements. This is the biggest deficiency in the current conventional technology, and this deficiency is a difficult problem to be overcome urgently in the industry.

Utility model content

In view of the lack of conventional technology, the inventor of the utility model has accumulated his professional knowledge in the design and manufacture of precision ceramic technology and industrial products for many years. After continuous research and improvement, he has successfully developed the utility model.

The reason is that the main purpose of this utility model is to provide a "heating assembly for an airtight continuous hot-press forming device". The two ends of the resistor are exposed on the two ends of the protective layer to form a connection terminal, which has the effect of protecting the resistor from corrosion or adverse reactions.

The aforementioned protective layer of the utility model is made of high-purity alumina or silicon carbide, so as to be suitable for a high-temperature airtight continuous hot-press forming device.

Description of drawings

Figure 1 is a plan view of a conventional heating device;

Fig. 2 is a front sectional view of the utility model embodiment;

Fig. 3 is a sectional view of the upper end of the utility model embodiment;

Fig. 4 is a sectional view of the heating zone of the embodiment of the utility model;

Fig. 5 is a sectional view of the high-temperature forming area of the embodiment of the utility model;

Fig. 6 is a sectional view of the heating assembly of the embodiment of the present invention.

【Symbol Description】

1 furnace body; 2 exchange system; 20 inner airtight door; 21 outer airtight door; 22 airtight space; 23 displacement device; 3 airtight cavity; 30 airtight cavity; 300 air layer; Heating zone; 33 high temperature molding zone; 34 cooling zone; 35 thermal insulation layer; 350 lower pressure plate; 351 reflection plate; 36 thermal field; 38 cooling device; ; 51 pressurized shaft; 52 pressurized column; 53 cooling device; 6 carrier plate;

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

The utility model is especially designed for the heating components of the airtight continuous hot pressing forming device of the hot pressing forming product. The hot pressing forming material of the utility model includes but not limited to glass, metal, ceramics or cermet heterogeneous composite materials, etc. . The airtight continuous hot pressing forming device used in the utility model is shown in Fig. 2 and 3, which mainly includes:

The furnace body 1 is a closed type, the two ends of the furnace body 1 are provided with an exchange system 2, and the interior of the furnace body 1 is provided with an airtight chamber 3;

The exchange system 2 is located at the two ends of the furnace body 1, and the exchange system 2 at the two ends of the furnace body 1 is provided with an outer conveying channel 4. Each exchange system 2 includes an inner airtight door 20 located on the side of the furnace body 1 and an outer door An airtight space 22 is formed between the outer airtight door 21, the inner airtight door 20 and the outer airtight door 21 on the side of the conveying path 4, 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 located inside the furnace body 1 and includes an airtight chamber body 30. The airtight chamber body 30 has an inner conveying path 31, and the inner conveying path 31 is connected to the inner airtight door 20 of the two-end exchange system 2 of the furnace body 1. , and is provided with slide rail 39 [please refer to Fig. 4 and Fig. 5], as the orbit that carrier plate 6 moves, this airtight cavity 3 is airtight, and imports protective gas [generally inert gas, such as nitrogen, hydrogen , argon, etc.; the device for providing protective gas is a common technology, so I won’t go into details], and according to the process, there are heating zone 32, high-temperature forming zone 33 and cooling zone 34, and there is at least one in the heating zone 32 and high-temperature forming zone 33 The thermal insulation layer 35 is layered, and a thermal field 36 is formed in the center of the thermal insulation layer 35. The thermal field 36 is equipped with a heating element 9 depending on the temperature required by the process procedure [the temperature control and other devices are conventional technologies, so I won’t repeat them], and a cooling zone 34 There is a cooling device 38 [the cooling device 38 is a conventional technology, so I won't repeat it], and the high-pressure forming area 33 is provided with a pressurization system 5;

The outer conveying channel 4 is connected to the two-end exchange system 2 of the furnace body 1;

The pressurization system 5, please refer to FIG. 4, the pressurization system 5 is mainly composed of a pressurization cylinder 50, a pressurization shaft 51 and a pressurization column 52;

In the utility model constituted in this way, the object to be hot-pressed is placed on the molding surface of the mold 7, and the mold 7 is placed on the carrier plate 6, and the carrier plate 6 enters the airtight cavity 3 through the exchange system 2, and is preheated by the heating zone 32 [ To avoid damage caused by too rapid temperature changes], and the high temperature in the high-temperature molding zone 33 softens the hot-pressed molded product in the mold, and is formed by the pressure of the pressurization system 5, and then cooled by the cooling zone 34, and then passed through the exchange system 2. Send out the outside of the furnace body 1 and then demould.

Please refer to Fig. 3, the utility model is located at the exchange system 2 on both sides of the furnace body 1, and each exchange system 2 includes an inner airtight door 20 located at the furnace body 1 side and an outer door 20 located at the outer conveyor road 4 side. The airtight door 21, the inner airtight door 20 and the outer airtight door 21 form an airtight space 22. When the carrier plate 6 is sent into the furnace body 1, the inner airtight door 20 and the outer airtight door at the head end of the furnace body 1 21 is closed, after the airtight space 22 is evacuated and the protective gas is introduced to the same environment as the airtight cavity 3 [the process of vacuuming will remove the air on the mold 7, especially the oxygen and impurities], the furnace The inner airtight door 20 on the side of the body is opened and the carrier plate 6 is pushed 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 21 at the end of the furnace body are closed. , and the airtight space 22 has been evacuated and the protective gas has been introduced into the same environment as the airtight chamber 3, and the airtight door 20 on the side of the furnace body is opened to push the carrier plate 6 into the airtight space 22, so as to avoid airtight Air outside the furnace is mixed in the dense cavity 3 to improve the molding quality of the hot-pressed molding.

Please refer to Fig. 6, the heating element 9 of the present utility model mainly includes a resistor body 90, and an insulating and airtight protective layer 91 covering the outer edge of the resistor body 90 is formed. The two ends of the resistor body 90 are exposed on the The two ends of the protective layer 91 form the terminal 92. Since the protective layer 91 and the resistor 90 are insulated and airtight, the gas in the atmosphere cannot penetrate into the protective layer 91, so that the protective layer will not be damaged. The resistance body 90 inside 91 is corroded and damaged, or affected by any adverse reaction, so as to achieve the effect of protecting the resistance body 90 from erosion or adverse reaction.

The aforementioned protective layer 91 of the present invention is made of high-purity alumina or silicon carbide, so as to be suitable for a high-temperature airtight continuous hot-press forming device.

The aforementioned protective layer 91 of the utility model is coated on the outer edge of the resistor body 90 by means of coating coating, or a protective tube is used to combine the resistor body 90 in the tube, and then the two ends of the protective tube are insulated and airtight with ceramic sealant and the resistor body 90 combination.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present utility model are all within the protection scope of the present utility model. The scope of protection of the utility model shall be determined by the claims.

Claims (3)

1. A heating assembly of an airtight continuous thermocompression molding device, characterized in that it includes a resistor body, and is coated on the periphery of the resistor body in a coating mode to form an insulating and airtight protective layer, and the two ends of the resistor body The two ends exposed on the protective layer form a connection terminal. 2 . The heating assembly of an airtight continuous thermoforming device according to claim 1 , wherein the protective layer is made of high-purity alumina. 3 . The heating assembly of an airtight continuous thermoforming device as claimed in claim 1 , wherein the protective layer is made of silicon carbide. 4 .