High-temperature ceramic heating and curing oven

Abstract

The utility model discloses a high-temperature ceramic heating and curing oven, which is used for heating and drying a membrane material and comprises an oven body and a heating component, a cavity is arranged in the oven body, and a guide roller is arranged on the oven body in a penetrating manner and used for guiding the membrane material to enter the oven body. The heating assembly is connected to the box body and located in the cavity, the heating assembly comprises a plurality of supports, each support is of a long-strip rectangular groove-shaped structure, a plurality of ceramic heating single bodies are embedded in the supports, the ceramic heating single bodies are arranged at equal intervals in the length direction of the supports, and the ceramic heating single bodies are connected with the heating assembly. The ceramic heating single bodies are tile-shaped and are provided with cambered surfaces for reflecting infrared rays, the end part of the bracket is provided with a wire passing hole, and a power wire passes through the wire passing hole and is electrically connected with each ceramic heating single body. The number of the heating assemblies is two, and the guide roller is clamped between the two heating assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of film material processing equipment, in particular to a high-temperature ceramic heating and curing oven. Background Art

[0002] At present, in the manufacture of metal films, aluminum-containing plastic films and other film materials, the glue and glue resin on the film materials are dried using a high-temperature oven for curing and melting. The traditional drying method is to use a stainless steel electric heating tube. This round tube radiates far infrared rays evenly in all directions, and at least half of the far infrared rays are emitted in other directions. The far infrared rays are not completely emitted to the glue or polymer polyester film on the film body, resulting in a waste of infrared rays and electricity. After a period of use, the internal temperature of the oven is high, and the stainless steel tube inside will deform and shift, affecting the uniformity of the drying and curing of the material and affecting the product quality. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a high-temperature ceramic heating and curing oven, which can utilize the characteristics of high heating efficiency, wide far-infrared radiation surface, and less infrared waste of the arc-shaped ceramic heating unit to ensure that each point on the surface of the film entering the oven has the same temperature, thereby ensuring product quality.

[0004] According to the first aspect of the present invention, a high-temperature ceramic heating and curing oven is used to heat and dry film materials, including a box body and a heating component. The box body has a cavity inside, and the box body is provided with guide rollers to guide the film material into the box body. The heating component is connected to the box body and is located in the cavity. The heating component includes a plurality of brackets, and the brackets are in the form of a long rectangular groove structure. A plurality of ceramic heating units are embedded in the brackets. The plurality of ceramic heating units are arranged equidistantly from each other along the length direction of the brackets. The ceramic heating units are in the form of tiles and have an arc surface for reflecting infrared rays. A wire hole is provided at the end of the bracket, and the wire hole is used for the power line to pass through and electrically connect each ceramic heating unit. The heating component is provided in two groups, and the guide roller is sandwiched between the two groups of heating components.

[0005] The high-temperature ceramic heating and curing oven according to the embodiment of the utility model has at least the following beneficial effects: the purpose of the utility model technology is to utilize the characteristics of high heating efficiency, wide far-infrared radiation surface and less infrared waste of arc-shaped and tile-shaped ceramic heating units, and arrange the positions of each ceramic heating unit to make the oven heating density high, so that the air temperature at each point inside the oven can be maintained at 250°C for a long time, and at the same time, the temperature of the oven exhaust port can be maintained at 190°C for a long time, ensuring that the glue resin on the surface of the film material in the oven can be cured and the polymer resin film on the surface of the film material can be melted, thereby ensuring that the film material runs at a speed of 110m / min in the oven, which can not only ensure that the quality of the finished film material meets the inspection indicators, but also ensure that the production efficiency and production output reach the predetermined goals.

[0006] According to some embodiments of the present invention, the bracket is provided with 10 ceramic heating units, wherein the spacing between each ceramic heating unit is not less than 2 mm.

[0007] According to some embodiments of the present invention, the heating power of the two ceramic heating units located at the two ends of the bracket is 250W, and the heating power of the six ceramic heating units located near the middle is 200W.

[0008] According to some embodiments of the utility model, the bracket is evenly and equidistantly provided with 10 arc holes for corresponding installation of 10 ceramic heating units.

[0009] According to some embodiments of the present invention, the ceramic heating unit is made of aluminum oxide and has an expansion coefficient of 6.8.

[0010] According to some embodiments of the utility model, the heating assembly is provided with 15 brackets, the spacing between each bracket is 40 mm to 50 mm, and the spacing between the brackets located at both ends close to the inner wall of the box and the box is 60 mm.

[0011] According to some embodiments of the present invention, the 15 brackets are divided into three groups, with 5 brackets in each group, and each group of brackets is connected to a different power source.

[0012] According to some embodiments of the present invention, the thickness of the box wall of the box body is 45 mm to 55 mm, and the box wall of the box body is filled with a heat insulation layer.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0015] Figure 1 A schematic diagram of a high temperature ceramic heating and curing oven according to an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of a bracket of a high temperature ceramic heating and curing oven according to an embodiment of the utility model.

[0017] Reference numerals: housing 100 ; cavity 101 ; heat insulating layer 110 ; heating assembly 200 ; bracket 210 ; wire hole 211 ; arc hole 212 ; ceramic heating unit 220 ; power cord 300 . DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the utility model, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meaning of the above words in the utility model in combination with the specific content of the technical solution. In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0022] In the manufacture of metal films, aluminum-containing plastic films and other film materials, high-temperature ovens are used to dry the glue and glue resin on the film materials for curing and melting. The traditional drying method is to use stainless steel electric heating tubes. This round tube radiates far infrared rays evenly in all directions, and at least half of the far infrared rays are emitted in other directions. The far infrared rays are not completely emitted to the glue or polymer polyester film on the film body, resulting in a waste of infrared rays and electricity. After a period of use, the temperature inside the oven is high, and the stainless steel tube inside will deform and shift, affecting the uniformity of drying and curing of the material and affecting product quality.

[0023] For this purpose, refer to Figure 1 and Figure 2The utility model provides a high-temperature ceramic heating curing oven for heating and drying film materials, comprising a box 100 and a heating assembly 200. The box 100 has a cavity 101 inside, and the box 100 is provided with a guide roller to guide the film material into the box 100. The heating assembly 200 is connected to the box 100 and is located in the cavity 101. The heating assembly 200 includes a plurality of brackets 210, and the brackets 210 are in a long rectangular groove structure. A plurality of ceramic heating units 220 are embedded in the brackets 210. The plurality of ceramic heating units 220 are arranged equidistantly along the length direction of the brackets 210. The ceramic heating units 220 are tile-shaped and have an arc surface for reflecting infrared rays. A wire hole 211 is provided at the end of the bracket 210. The wire hole 211 is used for the power line 300 to pass through and electrically connect each ceramic heating unit 220. Two groups of heating components 200 are provided, and the guide roller is sandwiched between the two groups of heating components 200. It can be understood that the purpose of the technology of the utility model is to utilize the characteristics of high heating efficiency, wide far-infrared radiation surface and less infrared waste of the arc-shaped and tile-shaped ceramic heating unit 220. By arranging the position of each ceramic heating unit 220, the heating density of the oven is high, so that the air temperature at each point inside the oven can be maintained at 250°C for a long time, and at the same time, the temperature of the oven exhaust port is maintained at 190°C for a long time, ensuring that the glue resin on the surface of the film material in the oven can be solidified and the polymer resin film on the surface of the film material can be melted, thereby ensuring that the film material runs at a speed of 110m / min in the oven, which can not only ensure that the quality of the finished film material meets the inspection indicators, but also ensure that the production efficiency and production output reach the predetermined goals.

[0024] Reference Figure 1 and Figure 2 The bracket 210 is provided with 10 ceramic heating units 220, wherein the spacing between each ceramic heating unit 220 is not less than 2mm, the heating power of the two ceramic heating units 220 at the two ends of the bracket 210 is 250W, and the heating power of the six ceramic heating units 220 near the middle is 200W. The bracket 210 is evenly and equidistantly provided with 10 arc holes 212 for the installation of the corresponding 10 ceramic heating units 220. The ceramic heating unit 220 is made of alumina, and its expansion coefficient is 6.8. The distance between each ceramic heating unit 220 must be maintained at 2mm, and the total length of the bracket 210 is 1218mm. There is 130mm of operating space near both ends of the bearing, and the operating space at each end is only 65mm. These spaces are used to pass the high temperature load power line 300, and to remove and connect the terminal.

[0025] In some embodiments, the utility model technology uses a ceramic heating unit 220 with a 220V AC voltage, a linear dimension of 120*60mm, an arc-shaped far infrared radiation surface, and a unit heating power of 200W / unit and 250W / unit. The ceramic heating unit 220 selected by the utility model technology is an aluminum oxide product, and its expansion coefficient is 6.8.

[0026] It should be noted that, since the guide roller passes through the lower oven body 100, the heat in the oven will diffuse to the air outside the oven through the hole gap, which is heat diffusion loss; and the heat is conducted to the outside of the oven through the metal guide roller, which is conduction heat loss. These two kinds of heat losses are inevitable. Figure 2 The arc-shaped hole is opened on the bracket 210 by a spring to ensure that the distance between each ceramic body is 2mm. Figure 2 Two 250W ceramic heating tiles are installed at each end of the bracket 210, and six 200W ceramic heating units 220 are installed in the middle. The purpose is to automatically compensate for the two heat losses by increasing the power of the ceramic heating tiles to ensure uniform air temperature inside the oven.

[0027] Reference Figure 1 The heating assembly 200 is provided with 15 brackets 210, the spacing between each bracket 210 is 40 mm to 50 mm, and the spacing between the brackets 210 located at both ends close to the inner wall of the box body 100 and the box body 100 is 60 mm.

[0028] Furthermore, it should be noted that the 15 brackets 210 are divided into three groups, each of which has 5 brackets 210, and each group of brackets 210 is connected to different power supplies. In order to balance the power transmission and distribution load, the utility model technology introduces a 380V AC power supply (U, V, W) to the oven, and each phase of the power supply is connected to 5 groups of loads. Each group of loads is connected in parallel with 10 heating tile monomers, including 4 250W and 6 200W heating monomers. The power of each heating tile is 2.2KW, and there are 15 groups of heating loads in total. Then the total power of an oven is 33KW, and the load adopts a star connection method.

[0029] Reference Figure 1 Furthermore, the thickness of the box wall of the box body 100 is 45 mm to 55 mm, and the box wall of the box body 100 is filled with a heat insulation layer 110 .

[0030] It should be noted that, preferably, in order to ensure the cleanliness level of the oven, the box body 100, the inner liner of the box body 100, all brackets 210, brackets, wiring terminals, fixing screws, nuts, gaskets, wires, etc. must be made of corrosion-resistant 304# stainless steel to ensure that the interior of the oven will not be corroded, will not fall off, and will not contaminate the coated product in a long-term high temperature, high humidity, and high concentration organic solvent environment.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high temperature ceramic heating curing oven, used for heating and drying film materials, It is characterized in that include: A box body has a cavity inside, and a guide roller is arranged through the box body to guide the film material into the box body; A heating component is connected to the box and is located in the cavity. The heating component includes a plurality of brackets. The brackets are in the form of a long rectangular slot-shaped structure. A plurality of ceramic heating units are embedded in the brackets. The plurality of ceramic heating units are arranged equidistantly from each other along the length direction of the brackets. The ceramic heating units are in the form of tiles and have an arc surface for reflecting infrared rays. A wire hole is provided at the end of the bracket. The wire hole is used for a power line to pass through and electrically connect each of the ceramic heating units. The heating components are provided in two groups, and the guide roller is sandwiched between the two groups of the heating components.

2. The high temperature ceramic heating and curing oven according to claim 1, It is characterized in that The bracket is provided with 10 ceramic heating units, wherein the spacing between each ceramic heating unit is not less than 2 mm.

3. The high temperature ceramic heating and curing oven according to claim 2, It is characterized in that The heating power of the two ceramic heating units located at the two ends of the bracket is 250W, and the heating power of the six ceramic heating units located near the middle is 200W.

4. The high temperature ceramic heating and curing oven according to claim 2, It is characterized in that The bracket is evenly and equidistantly provided with 10 arc holes for corresponding installation of the 10 ceramic heating units.

5. The high temperature ceramic heating and curing oven according to claim 2, It is characterized in that The ceramic heating unit is made of aluminum oxide and has an expansion coefficient of 6.

8.

6. The high temperature ceramic heating and curing oven according to claim 1, It is characterized in that The heating component is provided with 15 brackets, the spacing between each bracket is 40mm to 50mm, and the spacing between the brackets located at both ends close to the inner wall of the box and the box is 60mm.

7. The high temperature ceramic heating and curing oven according to claim 6, It is characterized in that The 15 brackets are divided into three groups, with 5 brackets in each group, and each group of brackets is connected to a different power source.

8. The high temperature ceramic heating and curing oven according to claim 1, It is characterized in that The box wall thickness of the box body is 45 mm to 55 mm, and the box wall of the box body is filled with a heat insulation layer.

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