JP-7855018-B2 - Heat treatment equipment

JP7855018B2JP 7855018 B2JP7855018 B2JP 7855018B2JP-7855018-B2

Inventors

植原孝徳

Assignees

ノリタケ株式会社

Dates

Publication Date: 20260507
Application Date: 20240209

Claims (7)

A first belt that travels along a predetermined route and transports the sheet, A heating furnace covering a portion of the travel path of the first belt, A roller is provided downstream of the heating furnace in the aforementioned travel path, and the first belt is folded back. A second belt is positioned below the axis of rotation of the roller and close to the folding region where the first belt is folded back by the roller, The system includes an air blowing device that blows air onto the aforementioned folded region , A gap is formed between the first belt and the second belt. The air blowing device is positioned below the roller and blows air toward the gap. Heat treatment equipment.
A first belt that travels along a predetermined route and transports the sheet, A heating furnace covering a portion of the travel path of the first belt, A roller is provided downstream of the heating furnace in the aforementioned travel path, and the first belt is folded back. A second belt is positioned below the axis of rotation of the roller and close to the folding region where the first belt is folded back by the roller, The system includes an air blowing device positioned above the second belt and in front of the roller, which blows air onto the folded-over region . The air blowing device blows air onto the folded region from a direction intersecting the first belt that is folded back by the roller. Heat treatment equipment.
Furthermore, equipped with an anti-static device, The heat treatment apparatus according to claim 1 or 2 , wherein the static elimination device eliminates static electricity from the sheet and the first belt between the outlet of the heating furnace and the position where the air blowing device blows air.
The heat treatment apparatus according to claim 3 , wherein the static elimination device eliminates static electricity from the sheet and the first belt in the folding region upstream of the position where the air is blown.
The heat treatment apparatus according to claim 4 , wherein the static elimination device blows static elimination air onto the outer surface of the first belt.
The heat treatment apparatus according to claim 1 or 2 , wherein the air blowing device blows air onto the folded region along the first belt which is folded back by the roller.
A sensor for detecting the passage of the sheet is provided between the outlet of the heating furnace and the position from which the air blowing device blows air. The heat treatment apparatus according to claim 1 or 2 , wherein the air blowing device intermittently blows air onto the folded region in accordance with the passage of the sheet detected by the sensor.

Description

This disclosure relates to a heat treatment apparatus. Japanese Patent Publication No. 2006-077272 discloses a manufacturing apparatus for porous metal sintered bodies, comprising a heating furnace, a furnace gas outlet path, a combustion chamber, a regenerative gas introduction path, and a gas analyzer. The manufacturing apparatus disclosed in this publication includes a mesh belt for moving a green sheet from the inlet to the outlet of the heating furnace. Japanese Patent Publication No. 2006-077272 Figure 1 is a schematic diagram showing a heat treatment apparatus 10.Figure 2 is a schematic diagram showing the heat treatment apparatus 10.Figure 3 is a schematic diagram of a heat treatment apparatus 10A according to another embodiment.Figure 4 is a schematic diagram of a heat treatment apparatus 10B according to another embodiment. The following describes one embodiment of this disclosure in detail with reference to the drawings. In the following drawings, components and parts that perform the same function are denoted by the same reference numerals. Furthermore, the dimensional relationships (length, width, thickness, etc.) in each figure do not reflect actual dimensional relationships. The directions of up, down, left, right, front, and back are represented by the arrows U, D, L, R, F, and Rr in the figures, respectively. Here, the directions of up, down, left, right, front, and back are defined merely for the sake of explanation and do not limit the present invention unless otherwise specified. Figures 1 and 2 are schematic diagrams showing the heat treatment apparatus 10. In Figures 1 and 2, the direction in which sheet A is conveyed is indicated by arrows. Figure 2 schematically shows how sheet A is transferred from the first belt 30 to the second belt 40. In Figure 2, the direction of air blown from the air blowing device 50 is indicated by a white arrow. <Heat treatment apparatus 10> As shown in Figure 1, the heat treatment apparatus 10 comprises a first belt 30, a heating furnace 20, a roller 31, a second belt 40, and an air blowing device 50. The heat treatment apparatus 10 is further equipped with an anti-static device 60. The heat treatment apparatus 10 is a device for heating and processing sheet-shaped workpieces (hereinafter also simply referred to as "sheets"). In the heat treatment apparatus 10, multiple sheets A are sequentially conveyed and processed continuously. The sheet-like workpiece processed by the heat treatment apparatus 10 is not particularly limited. The sheet-like workpiece may, for example, be a resin composition containing a resin component. The resin composition may be, for example, a silicone resin, a polyimide resin, etc. The resin composition may also contain materials other than the resin component. The resin composition may contain, for example, inorganic fillers, ceramic powder, etc. The thickness of sheet A is not particularly limited. The thickness of sheet A may be, for example, 10 mm or less, 1.0 mm or less, or 0.3 mm or less. The thickness of sheet A may also be, for example, 10 μm or more, 30 μm or more, or 50 μm or more. <Belt 1, 30> The first belt 30 travels along a predetermined path to transport the sheet A. In this embodiment, the first belt 30 is a mesh belt made of glass fibers coated with fluororesin. The fluororesin coating on the first belt 30 makes it easy for the sheet A to peel off the first belt 30. A mesh belt is a belt woven in a mesh pattern. The fact that the first belt 30 is a mesh belt makes it easy for the sheet A to peel off the first belt 30. Note that the first belt 30 is not limited to a mesh belt. The material of the first belt 30 may be appropriately selected according to the composition and processing conditions of the sheet A, and is not particularly limited. The material of the first belt 30 may be, for example, ceramic, resin, etc. The first belt 30 is an annular belt without ends, a so-called endless belt. Sheet A is conveyed while resting on the outer surface of the first belt 30. The first belt 30 is wound around rollers 31-34 under the required tension. The rollers 31-34 are made of metal, for example, stainless steel. The metal construction of the rollers 31-34 can reduce static electricity that may be generated on the first belt 30. The first belt 30 may be placed on a tension roller (not shown) for adjusting the tension. A drive device 35 is connected to the roller 34 to drive the first belt 30. The drive device 35 drives the first belt 30 counterclockwise by rotating the roller 34. For example, a servo motor may be used as the drive device 35. The conveying speed of the first belt 30 may be adjusted by controlling the rotation speed of the servo motor acting as the drive device 35. The drive unit 35 rotates the roller 34. As the roller 34 rotates, the first belt 30 is driven in a predetermined direction. The rollers 31-33, on which the first belt 30 is mounted, rotate passively via the first belt 30. The travel path of the