JPH0245987Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an infrared heating device, and more particularly, to an infrared heating device in which a plurality of infrared heating elements with reflective surfaces are combined and arranged in a specific shape.

Elliptical or parabolic reflecting surface 1 as shown in Figure 1
The infrared heating element A with a reflective surface, in which an infrared ray emitter 2 is attached to the focal point of the infrared rays using a support 3, is used in a wide range of applications, taking advantage of its features of high heating efficiency and ability to heat at high temperatures in a short period of time.

The inventors of the present invention also focused on such reflective surface infrared heating elements, and utilized its features to manufacture resin and rubber products.
A wide range of studies have been conducted, including the use of fibers in surface treatment methods.

However, in the case of a conventional infrared heating device with a reflective surface, as shown in FIG. Therefore, when heating the heated object continuously and instantaneously, it takes up a large space in the flow direction of the production line, and the cross-sectional area of the heated object is There is also a size limit, and when manufacturing a product with a very large diameter, a large amount of space and a large number of heating elements are required.
This drawback is particularly fatal in the production of resin and rubber products, and there have been situations in which products have not been able to meet the demands of an era of increasing size.

The inventors of the present invention have considered how to deal with the actual situation, eliminate the drawbacks, and meet the demands of the era of increasing size, including manufacturing the above-mentioned rubber products, by using less space and fewer heating elements. ,
As a result, we discovered that a significant effect could be obtained by changing the arrangement of the infrared heating element, and arrived at the present invention.

That is, the present invention uses an elongated infrared heating element (hereinafter referred to as
In the present invention, the elongated infrared heating element refers to a pair of a straight rod-shaped infrared radiator and a reflective surface. )
The purpose of the present invention is to provide an infrared heating device that enables manufacturing and processing of various large-sized products in less space than the above-mentioned space due to the specific arrangement of the elongated When a plurality of infrared heating elements are positioned so that their axial directions are in a plane perpendicular to the direction of flow of the object to be heated, and the plurality of heating elements are visually recognized in the direction of flow of the object to be heated, The object is closely arranged so that at least half the circumference of the object to be heated is surrounded by the entire object.

Here, when viewed in the direction of flow of the object to be heated, at least half of the circumference of the object to be heated is surrounded by a plurality of heating elements means that the plurality of infrared heating elements are arranged in one plane perpendicular to the direction of flow of the object to be heated. In addition to cases in which the infrared heating element is arranged in an annular or semicircular shape within the interior, the infrared heating element is also individually shifted in the flow direction of the heated object, but in both cases, the axis of the infrared heating element is within a plane perpendicular to the flow direction. This also includes cases where the individual heating elements are arranged in an annular or semicircular shape when viewed in the flow direction of the heating element.

Hereinafter, embodiments of the present invention will be described with further reference to the accompanying drawings.

Figure 3 shows an example of the infrared heating device of the present invention.
There are six infrared heating elements A each consisting of a straight rod-shaped infrared radiator and a corresponding reflecting surface as shown in Fig. 1, with the axial direction (thin arrow) pointing in the direction of the production line (thick arrow). They are arranged perpendicularly to the ground and in an annular shape.

It will be clearly understood that in the case of such an arrangement, it is possible to reduce the space and use a large heated body while using the same amount of heating bodies as in FIG. 2.

In the illustrated example, the plurality of heating bodies A are closed in an annular shape, but this does not necessarily have to be closed, and may be opened in a semicircular shape as the case may be. In addition, in the illustrated example, six heating elements A are connected to each other in a series, but there may be gaps between the individual heating elements, and each heating element A may be produced independently little by little. There may also be deviations in the flow direction of the line.

However, in this case, when viewed from the flow direction of the production line, the plurality of heating elements are closely spaced together and, as described above, have an annular shape as shown in FIG. 3, or at least surround half the circumference of the object to be heated. It is effective from the actual heating element.

Further, the annular or semicircular shape mentioned above does not mean a perfect circle, but includes all kinds of curved shapes such as an ellipse and a parabola, and polygonal shapes such as hexagonal and octagonal shapes.

The device of this invention has the above-mentioned configuration, and by simply combining multiple heating elements, it can easily and efficiently manufacture large-sized resin and rubber products, and perform surface treatment of paper and fibers in a narrow space. be able to.

As described above, in the present invention, a plurality of elongated infrared heating elements are positioned with their axial directions perpendicular or approximately perpendicular to the flow direction of the object to be heated, and are closely spaced so as to surround more than half the circumference of the object to be heated as a whole. Compared to the conventional method of arranging them in line with the direction of the production line, it takes up less space, and by simply selecting the number of heating devices to be used, it is possible to create heating devices of any size with large internal dimensions. Or, by selecting the length, you can make a large ring even with the same amount, so there are fewer restrictions depending on the size of the object to be heated, and it can be applied to heating quite large objects. This, combined with the heating efficiency of infrared heating elements, is expected to further expand its field of use, and is expected to be extremely effective, especially in line with the recent trend toward larger sizes.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the single structure of an infrared heating element, FIG. 2 is a schematic diagram of a conventional reflective surface addition heat device, and FIG. 3 is a schematic diagram showing an example of the heating device of the present invention. . A...Infrared heating body, 1...Reflecting surface, 2...Infrared radiating body, 3...Support.

Claims (1)

[Scope of utility model registration request] A plurality of elongated infrared heating elements each consisting of a straight rod-shaped infrared radiator and a matching infrared reflecting surface.
The axial direction of each heating element is located within a plane perpendicular or substantially perpendicular to the flow direction of the heated object, and when viewed in the flow direction of the heated object, the plurality of infrared heating elements as a whole surround at least half the circumference of the heated object. An infrared heating device characterized in that the infrared heating device is arranged in close contact with each other.