JPS63102705A - Method for adhering cover paper of fan - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for pasting paper coverings on fans, and in particular, a method for temporarily pasting covering paper, which has been laminated with heat-fusible synthetic resin on one side in advance, to both sides of aggregate. The paper fan material is heated and pressed using a heat roller coated with a heat-resistant elastic material, thereby beautifully and efficiently welding the covering papers to each other. .

[Conventional technology and its problems]

Conventionally, in the process of manufacturing fans, in the work of pasting covering paper onto the aggregate, regardless of the material of the aggregate,
Covering paper was pasted by hand on both sides of aggregate branch bones that had been properly glued, and then allowed to dry naturally, which required a great deal of effort and time. be.

For this reason, in recent years, semi-finished fan products in which the aggregate is sandwiched between covering paper laminated with a heat-fusible synthetic resin on one side in advance are being produced using a press machine in which heat-resistant sponge rubber is attached to the upper and lower hot plate surfaces. A method for attaching covered paper to a fan has been developed in which the covered paper is welded to each other by heating and pressing twice for a predetermined period of time (for example, Japanese Patent Publication No. 59-45
(See Publication No. 361).

However, in such a method, the entire surface of the fan is pressed at once, so even if the internal stress is somewhat removed by the -th hot pressing, the thickness of the aggregate will increase when pressing again. Residual air in the void corresponding to the ramus was hermetically sealed between the covering papers, leaving unwelded parts on the covering paper or damaging the core, and also causing variations in the spacing between the ramus bones. This was a factor that significantly reduced the commercial value of the fan and caused a deterioration of the manufacturing yield.

Furthermore, since the heating and pressing work had to be carried out manually one by one in the old-fashioned way, the work required a great deal of effort, and there are various problems that still need to be solved. was seen.

[Means for solving problems]

In view of these circumstances, the inventor of the present application proposed a method for attaching paper coverings to this type of fan by using a heat-resistant elastic material to create a fan material made by temporarily fixing covering paper laminated with heat-fusible synthetic resin on both sides of aggregate. All of the above-mentioned problems have been solved by sequentially heating and pressing the coated papers from the latch to the distal end of the ramus using a heated roller having a surface attached thereto, thereby welding the coated papers to each other.

[Function] The method of the present invention, which is based on a ridged structure, uses a heated roller that sequentially heats and presses the aggregate from the key part of the aggregate toward the tip of the ramus to weld the coated papers to each other, and to remove any remaining residue between the coated papers. It performs various functions, such as reliably discharging air and sequentially correcting the positions of the ramus bones to maintain equal spacing between the ramus bones.

〔Example〕

Hereinafter, the method of applying paper covering paper to a fan according to the present invention will be explained in more detail based on the drawings. Uchiwa fan material made by temporarily fixing covering paper to predetermined positions on both sides of the material,
2.2'' is a conveyor on which the fan material 1 is placed and moves at a predetermined speed; 3 is a pair of relatively large-diameter heaters having a heat-resistant elastic material 3a such as silicone rubber on the surface and a heater 3b inside; a roller, the conveyor 2
It is located in front of the conveyor 2 and rotates in synchronization with the conveyor 2.2 while maintaining a predetermined temperature and pressure. Further, 4 is a tightening roller with an appropriate elastic material 4a on the surface, which presses again the fan material 1 which has been heated and pressed by the heat roller 3 so that the covering papers on the front and back are almost in a welded state, and 5 is a tightening roller that distributes water or the like. The tightening roller is a relatively large-diameter cooling roller that cools and solidifies the fan material 1 as it is, and also has an elastic material 5a on its surface, both of which rotate in synchronization with the conveyors 2 and 2''. Further, reference numeral 6 denotes an appropriate preheating device that heats the fan material 1 in advance using a heater, hot air, etc., as necessary, to assist in welding by the heat roller 3.

As shown in FIG. 2, the fan material 1 is made of a covering paper 1a which has been laminated with heat-fusible synthetic resin on one side in advance in the previous step, and is made by bonding aggregate branches so that the laminated surfaces are joined to each other. The bone 1b is fixed properly, and the aggregate is temporarily fixed 1c at a plurality of locations at predetermined positions.

Therefore, in carrying out the present invention, in the above-mentioned apparatus, the fan material l heated to some extent via the preheating device 6 is placed on the conveyor 2 with its handle portion 1d facing the forward direction, and The fan material 1 is introduced into a heat roller 3 and heated and pressed. In this case, since the fan material 1 is elastically heated and pressed sequentially from the latch portion toward the tip of the ramus, the covering paper 1a is applied to each ramus. It deforms along the bone, welds the mutual joints, and the remaining air in the core is reliably discharged from the rear end of the covering paper.

Furthermore, even if the distances between the ramus bones of the aggregate are uneven, by sequentially welding them from the latch, the distances between the ramus bones will be corrected as the aggregate moves, and the distances between the ramus bones will be equal. The covering paper is welded while holding the paper.

Furthermore, relatively strong tightening is performed again by the roller 4, and the fan material 1 that has been securely welded and formed is completely cooled and solidified by the cooling roller 4, and then transferred to the next process by the conveyor 2' to a predetermined shape. The fan is completed by cutting and molding it into a shape, pasting a border paper, etc., but each of the following steps can still be carried out as before.

In addition, in the method of the present invention, the material of the aggregate is not particularly limited, but when using synthetic resin molded products, which have been particularly frequently used in recent years, those with a high heat resistance temperature should be used, and a heated roller should be used. temperature is precisely maintained at the temperature required for welding the heat-fusible synthetic resin to be laminated to the coated paper.
It is desirable to prevent thermal deformation of the aggregate.

In addition, by applying a material of the same quality as the heat-fusible synthetic resin or an appropriate real-melt adhesive to both sides of the ramus of the aggregate in advance, it is possible to bond not only between the covering paper but also between the covering paper and the ramus. and are welded to each other, making it possible to manufacture a stronger fan.

As described above, the method of the present invention is based on the technical aspects of heat-welding the covering paper by sequentially heating and pressing the fan material from the latch to the tip of the ramus using a heated roller coated with a heat-resistant elastic material. Since this is a summary, in addition to continuous pasting using the above-mentioned conveyor, etc., the fan material is fixed,
It goes without saying that this includes techniques for moving the heat roller in the relevant direction by manual or appropriate mechanical means.

〔Effect of the invention〕

As described above, the method for attaching paper coverings to fans according to the present invention involves sequentially heating and pressing the covering paper temporarily fixed to aggregate from a predetermined direction via a heated roller coated with a heat-resistant elastic material. Since the covering paper is welded to each other, there is no need to seal residual air as in the past, and the space between the ramus is maintained evenly, allowing the covering paper to be applied beautifully and efficiently. In addition, various excellent effects can be expected, such as automation and speeding up of work by introducing conveyors and the like.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of an apparatus used to apply the covering paper to a fan according to the method of the present invention, and Fig. 2 is a partially cutaway view of an example of the fan material to which the covering paper has been temporarily attached. FIG. In the figure, 1... fan material, 2, 2"... conveyor, 3... heat roller, 3a... heat-resistant elastic material, 3b
... Heater, 4 ... Tightening roller, 5 ... Cooling roller. that's all

Claims (1)

[Claims] 1. A fan material 1 made by temporarily fixing covering paper 1a laminated with a heat-fusible synthetic resin on both sides of the aggregate is passed through a heat roller 3 with a heat-resistant elastic material 3a on its surface, and is rolled from the latch to the branch bone. The above-mentioned covered paper 1a is heated and pressed sequentially in the direction of the tip.
A method for pasting paper coverings on a fan, characterized by welding them together.