JPS6030611B2 - Equipment for heat treating cylindrical articles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an apparatus for heat treating an article, and according to the invention, a gaseous body of such temperature or composition is brought into contact with an article to treat the article. It is designed to cross the fence.

The apparatus of the present invention allows for uniform and effective treatment of articles while reducing enclosure size and, in particular, article travel. The device of the invention is of the type in which the articles to be treated undergo simultaneous translational and rotational movements, in which the articles are moved a number of times along the length of the enclosure and at different heights, extending laterally across the enclosure. It is brought into contact with a device that turns over the overlapping surfaces and performs a continuous translational movement, ``the device moves the article from one to the other at two different heights.''

The articles processed with this apparatus are generally cylindrical, spherical or elliptical and are rotated about their central axis or the center of the article.

The apparatus of the invention can be applied to a variety of different treatments, such as drying, freezing, heating, quenching and tempering.

The device of the present invention can also be used to coat the surface of an article with a material such as a top coat or paint, and this material may have different components, and each component can be effectively mixed according to the movement of the article. . Additionally, the apparatus of the invention may be used to facilitate the application of semi-solid, flexible or shrinkable coatings to articles being treated. The article to be treated may be tubular, especially cylindrical, and is an insulating tube made of fibers with an adhesive distributed within the fibers, the heat treatment being carried out over the entire thickness of the article by means of a gaseous body within the enclosure. The adhesive is cured or polymerized.

This article was published in Japanese Patent Publication No. 50-160795 by the applicant.
A particularly small diameter insulating tube made of textiles is disclosed in ``Method and Apparatus for the Continuous Production of Insulating Sheaths'' in 2003, which is made from felt impregnated with an adhesive. Furthermore, this insulating tube has a porous structure, but in order to stabilize the shape of the insulating tube, resin is added to harden the inner and outer surfaces. The apparatus of the invention comprises at least two perforated plates stacked one on top of the other, on each plate the article to be treated rotates and moves, and at least one endless chain provides translational interlocking, so that the article to be treated is The upper chain of the inorganic chain moves the article in one direction at the height of one perforated plate and the lower chain moves it in the other direction on the other perforated plate. The passage of the articles to be processed from one endless chain to another takes place by gravity.

Go. Other characteristics and advantages of the invention will become apparent from the following description of an exemplary embodiment illustrated in the accompanying drawings.

The example shows an apparatus used for a textile insulation tube A made of felt impregnated with an adhesive as described in the aforementioned patent application, heating the tube completely uniformly to prevent polymerization of the adhesive. It is used for hardening.

When being heat treated in an enclosure or furnace, the tubes are carried without being wrapped to avoid peeling off the outer layer and damaging the appearance.

On the other hand, while drying in the oven, the tube is kept horizontal over its entire length and rotated completely about its axis to ensure uniform heat treatment. Pipe A is carried continuously along the inclined supply table to door 1, and this door 1! Well, each pipe A is moved by jack 2 to stop it in front of its inlet. In this way, pipe A is inserted into the interior at the required intervals.
It is reliably sent to the transport device.

Opening the door 1 is instantaneous and reduces the loss of thermal calories in the furnace. In order for tube A to remain in the furnace longer, the furnace is provided with five stages stacked on top of each other in the multi-stage embodiment, and the overall length of the furnace is limited.

Each stage consists of a perforated plate 3, with holes raised in some or many places, and rotated with the aid of a rod 4 which causes the tube A to carry out a continuous translational movement. For this purpose, a chain 5 is attached to the bamboo wood 4. According to the invention, the endless chain 5 moves on the one hand with its upper chain and on the other hand with its lower chain over two successive stages of perforated plates 3. In the illustrated embodiment, three copper bars 5 to which birch wood 4 is attached are provided, so as to obtain five overlapping processing stages. Moved.

The pipe A is placed between two adjacent bamboo pieces 4 on a perforated plate 3, and the movement of the inorganic chain 5 advances the equipment 4.

The pipe A is pushed by the bamboo wood 4 located upstream and advanced while rotating on the perforated plate 3. A free space 7 is provided in front of the gear 6 between the end 9 of the perforated plate 3 and the shank 4 to allow the tube A to be transferred by gravity to the lower step. In this stage the comb 4 rotates in the opposite direction and is moved by the return chain of the chain 5. As a result, tube A is moved horizontally in the opposite direction to that received by the stage immediately above in the same condition. Finally, the tube A leaves the lower stage 8 and is transferred down the inclined surface 10' while rotating. Heating of the drying chamber is carried out by a gas lamp i2 placed on the floor 13, on which a small non-oxidizing metal lid 14 is provided to avoid local heating of the lower part of the drying chamber.

A thin perforated lid parallel to the lid 14 at a distance to evenly distribute the rising heated air over the entire bridge of the drying chamber? 5 will be provided. After contacting all pipes A, the air is discharged from the chimney 16.

In the embodiment described, the perforated plate 3 is arranged horizontally and supports the tube A to be treated.

In the embodiment of FIGS. 4 and 5, the plate 3 is inclined with respect to the horizontal.

The slope of the plate 3 is such that in FIG. 4 the tube A rises and is brought into contact with the birch material 4.

Such an arrangement ensures that the tube A rotates in an orderly manner and cannot be completely processed unless the tube A or the member to be treated is rotated.

In the embodiment shown in FIG. 5, the oblique direction of the perforated plate 3 is in the direction in which the pipe A descends, and the perforated plate 3 is reliably placed on the bamboo 4 by gravity, and its movement is controlled.

Another important feature shown in FIG. 4 is that the arrangement of the plates 3 facilitates the evacuation of material particles separated from the tube A being processed during its passage. BRIEF DESCRIPTION OF THE DRAWINGS The first wing view is a side view of the processing enclosure, partially showing the internal arrangement, FIG. Large-scale cross-sectional views of the steps of the corral advancing device shown in the figures, FIG. 4 and FIG.

1...Door, 2...Jack also 3...Perforated plate t4...
・Bamboo wood, 5... Inorganic chain, 6... Chain end "?
...Free space, 8...Lower stage, 9...Board edge, turtle 0
...Small slope, 12...Gas lamp, Wing 3...Floor t. Tomigame...Metal lid.

Million G. ? Reason 2 hG. 〆 (G.

Kutsu 〇 to

Claims (1)

Claims: 1. at least two spaced apart perforated plates, a heating device for circulating a curing gas stream through the perforated plates, first in one direction on the upper perforated plate; a device for subsequently rolling the articles in reverse order over the next perforated plate, the rolling device having a series of article-engaging members and an endless transport member for the article-engaging members; The endless conveying member has a conveying surface that moves in one direction over one of the perforated plates and another conveying surface that moves in the opposite direction over the next perforated plate, and has an endless conveying surface that moves in the opposite direction. an attachment device for an endless conveying member having sprockets disposed at adjacent ends of the heavy conveying surface of the conveying member, the article engaging members being arranged between the articles on the perforated plate with a spacing greater than the diameter of the articles; spaced apart from one another to achieve movement of the articles on the perforated plates at a speed compatible with the speed of the endless conveying member, the upper perforated plate having a diameter smaller than the diameter of the articles. terminating at the downstream end at a point spaced from the sprocket at the end of the cooperating running surfaces of the endless conveying member to form a large opening and for gravity feeding the articles from the upper perforated plate to the next perforated plate; An apparatus for heat treating a cylindrical article, characterized in that it is installed inside a sprocket. 2. The device according to claim 1, wherein the perforated plate is arranged in a substantially horizontal and parallel plane, and the article engaging member acts to push the article on the perforated plate. . 3. The perforated plate is arranged in a parallel plane inclined with respect to the horizontal plane, and the article engaging member acts to push the article on the perforated plate inclined upward, and the article moves to the next perforated plate. 2. A device according to claim 1, wherein the device acts to restrain the movement of the article under the action of gravity so as to travel upwardly and downwardly. 4. The endless conveying member comprises a pair of endless chains on both sides of a perforated plate, and a driving member made of a rod is connected to the endless chains at intervals. equipment.