JPS5945361B2 - How to attach covered paper to a fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching paper covering to a fan.

Conventionally, regardless of whether the bones are made of bamboo or synthetic resin,
Glue covering paper that is thicker than the skeleton to the front and back of the bones.
After drying and gluing for an appropriate period of time, the desired external shape is cut out while the part is dry and solidified, and then the finished cut out external shape is hemmed to produce the finished product.

In the above-mentioned manufacturing process, the gluing of the covered paper is done manually, so the work efficiency is low.

This is because it is necessary to apply glue, which is a separately prepared adhesive, to the covering paper.If the covering paper on the front and back sides itself has adhesive properties, applying the glue described above requires work. You can apply the covering paper without any trouble.

SUMMARY OF THE INVENTION An object of the present invention is to use a heat-fusible covering paper for adhesion in order to improve the work efficiency of adhering the covering paper.

The technical means of the present invention for solving the above problems is to provide a fixed lower heat plate with heat-resistant sponge rubber on the upper surface and an upper heat plate with heat-resistant sponge rubber on the lower surface facing each other, The upper hot plate is moved up and down by a driving means, and a press device is used in which the upper hot plate is brought into contact with the lower hot plate at a predetermined pressure, and the hot plate is placed on the lower hot plate by thermal welding. Place a semi-finished fan to weld the covering papers on both the upper and lower sides of the bone, and press the semi-finished fan, which is the upper hot plate, against the lower hot plate, and then return the upper hot plate to its original position. Then, the upper hot plate was again pressed against the lower hot plate to weld the covering papers together.

The above technical means works as follows.

When a semi-finished fan made of bone or heat-welding covered paper is placed on the lower heating plate and the press is driven, the upper heating plate moves towards the lower heating plate and lowers. Press the semi-finished fan to preheat it.

At this time, the covering paper undergoes plastic deformation due to heat suppression, elastic deformation, and deformation due to thermal expansion, and the covering paper follows the uneven shape of the surface of the fan bone.

Next, the upper mold hot plate is once raised and returned to its original position.

In the preheated and pressed state, the covering papers are not completely welded to each other, and there is a degree of freedom between the bones and the covering papers.

Therefore, during the upward return of the upper die hot plate at 0.degree.

Next, when the upper hot plate is pressed again, the covering papers, which have been deformed to fit the irregularities of the bone, are pressed together by the upper and lower heat-resistant sponge rubber, and the joints of the covering papers are welded together.

Based on the above effects of the technical means, the present invention has the following unique effects.

(1) Since the coated paper is thermally welded, conventional manual gluing is no longer necessary, reducing manufacturing time and improving manufacturing efficiency.

(2) The internal stress of the fan in the completed state becomes extremely small due to the above effects caused by the second heat suppression, the above effects when the pressure is released after that, and the above effects caused by the second heat press. This eliminates the inconvenience of wrinkles and wrinkles.

. Next, embodiments of the present invention described above will be described based on the drawings.

FIG. 4 is a front view showing the coated paper pasting device used in the practice of the present invention. Attach the sponge rubber 11.

A lower hot plate 12 is provided opposite to the upper hot plate 10, and the upper surface of the lower hot plate is also covered with heat-resistant sponge rubber 1, similar to the upper hot plate.
Attach and fix 3.

is, is, is are the hits for positioning the covering paper and bones during welding of the covering paper, which will be described later. When set, place the fan on the upper and lower hot plates 10.1.
An appropriate location is selected and placed so as to be located in the center of 2.

In addition, limit switches 17 and 18 are provided near where the upper hot plate 10 moves up and down to control the movement range of the upper hot plate 10 (see FIGS. 4 and 5). Reference numeral 14 denotes a control unit. It controls the temperature of the upper and lower hot plates 10 and 12, the pressure of the air cylinder 8, etc.

In the embodiment shown in FIG. 4, the heat welding device has two
Shows those installed in series.

On the other hand, the fan bones and covered paper (
I will explain about Uchiwa Paper (Uchiwa paper).

FIG. 1a is a plan view showing a bone used in an embodiment of the present invention, in which a handle 19 is provided on one side from the central bifurcation of the bone 1, and an upwardly extending branch 20.21 is provided on the other side. .

Between each branch 20, 21, there are a plurality of radial support rods 23, 23, whose outer peripheral ends are also connected to the connecting side 24.
Form an extension of...

The covering paper 2, as shown in FIG. 1, is a laminated paper in which a heat-fusible synthetic resin layer 4 is provided on one side of the paper 3.

Now, in order to carry out the "C5 fan-stretching work" using the fan manufacturing apparatus used in the practice of the present invention, covering papers 2, 2 larger than the skeleton are placed on each synthetic resin layer from the front and back of the bones 10. Align so that 4 and 4 are facing each other.

(FIG. 1C) In this state, as shown in FIG. 6, the mold is set on the lower mold hot plate 12.

At this time, the covering papers 2, 2 are positioned at appropriate positions by the abutments 15, 15.15, and the handle 19 of the bone 1 is
15.5% of the handle is positioned by fitting into the fixing groove 19& of one hit 15 corresponding to the handle.

After the object to be welded is set in a predetermined position, when the actuation button 16 of the control section 14 is pressed, the air cylinder 8 is actuated.

When the air cylinder is actuated, the upper hot plate 10 moves downward until it is stopped at a predetermined position by the lower limit switch 18.

After that, the object to be welded is pressed for about 3 seconds, and after preheating, the preheating time is detected by a timer (not shown).
Once the pressed state is released for an appropriate time.

At this time, the temperatures of the upper heat plate 10 and its heat-resistant sponge rubber 11 are set to about 150°C and about 120°C, respectively, and the lower heat plate 12 and its heat-resistant sponge 2 bar 13 are also set to the same temperature. put.

The covered papers 2, 2 are heated and pressed in this preliminary heated and pressed state.
3...Easy to fit in between (as shown, it has been plastically deformed due to thermal deformation and compression.

Next, the upper and lower hot plates 10, 12 press the welded object again in a heated state for about 3 seconds, and then the upper hot plate 10 moves upward, is detected by the upper glue limit switch 11, and stops.

As a result, as shown in FIG.
．． 2 is reliably welded between the support rods 23, 23, . . . by thermally melting the respective synthetic resin layers 4, 4.

After that, the original fan (shown in Figure 2) is taken out and trimmed, resulting in the finished fan shown in Figure 3.

In the case of the apparatus according to the embodiment of the present invention described above, since the positioning hits 15, 15, 15 are provided, the welded object can be easily positioned.

Incidentally, if the positions of these abutments 15, 15, and 15 are set at a temperature such that they can be changed as appropriate, it is possible to smoothly perform the work of fan-lining a fan having bones of any shape.

[Brief explanation of the drawing]

FIG. 1a is a plan view of the fan bone, and FIG. 1 is an enlarged sectional view of the covering paper 2. Figure 1C is a partially cutaway plan view of the fan bones 10 covered with 2ft of covering paper from the front and back, and Figure 1d is A-A.
1e is an enlarged BB sectional view, FIG. 2 is a plan view of the covered paper in a welded state, FIG. 3 is a plan view of the finished fan, and FIG. 4 is an apparatus used to carry out the present invention. Fig. 5 is a front view, Fig. 5 is a side view thereof, and Fig. 6 is an explanatory diagram showing a means for positioning the welded object.
...Heat-resistant sponge rubber, 12...Lower mold heating plate.

Claims (1)

[Claims] 1 A fixed lower heat plate 12 with heat-resistant sponge 2 bars 13 attached to the upper surface and an upper heat plate 10 with heat-resistant sponge rubber 11 attached to the lower surface are provided facing each other, and the upper heat plate 1
0 is moved up and down by a driving means, and a press device is used in which the upper mold hot plate 10 is brought into contact with the lower mold hot plate 12 at a predetermined pressure, and a mold is placed on the lower mold hot plate 12 by thermal welding. A semi-finished fan for welding the covering papers on both the upper and lower sides of the bone is placed, and the upper mold hot plate 10 is pressed against the lower mold hot plate 12 through the semi-finished fan, and then the upper mold heats once. A method for pasting covered paper on a fan, in which the plate 10 is returned to its original position, and the upper hot plate 10 is similarly pressed against the lower hot plate 12 to weld the coated sheets together.