JPS6010900B2 - How to attach cloth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching cloth, for example, when attaching cloth without wrinkles to one side of a plate or frame, such as the front panel of a speaker box. The plate material and frame are made of thermoplastic resin, making it easier to attach the cloth.

The inventors previously proposed automating the work of attaching the front net plate of a speaker box by using a reversing mechanism.

In this case, adhesive was used to attach the cloth to the board or frame, but the present invention eliminates the work of applying adhesive by forming the board or frame itself from thermoplastic resin. It was made so that it could be done. An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 5 denotes a pedestal for holding a member 6 to be adhered such as a plate or frame, and 7 denotes a reversing mechanism disposed around the pedestal 5. As shown in detail in FIG. 2, this reversing mechanism 7 has a rotation fulcrum 8 at its rear end and a needle-shaped protrusion 9 at its tip. 10 is a rolling pin that constitutes a press mechanism for pressing the adhered member 6 downward; 11 is a heater press that constitutes a pasting mechanism; 12 is a press pin attached to the tip thereof; 13 is a known press pin; The cloth is fed out by a cloth feeding mechanism (not shown), 14 is a tenter mechanism for applying tension in a predetermined direction to the cloth 13, and 15 is a cutter for cutting the cloth 13 at a predetermined location.

Note that the adhered member 6 is integrally molded from thermoplastic resin. Next, the pasting operation will be explained.

First, as shown in FIG. 2a, the member 6 to be adhered is placed above the pedestal 5, and the cloth 13 fed out from a known cloth feeding mechanism is placed between them. At this time, tension is applied to the cloth 13 in a predetermined direction by the tenter mechanism 14. From this state, as shown in FIG. 2b, the clamping pin 101 presses the adhered member 6 downward, and at the same time, the pedestal 5 is pushed upward by an elevator (not shown) or the like. At this time, the reversing mechanism 7 also slides upward by 1 as shown in FIG. 2c, and rotates in the direction of arrow A in FIG. 2c along with this sliding movement. At this time, the needle-like protrusion 9 provided at the tip of the reversing mechanism 7 pierces the cloth 13, so the reversing mechanism 7 applies the tension that was previously applied by the tenter mechanism 14, and the end of the cloth 13 is Fold it back to the back side of the cloth 13 to be pasted 6. At this time, the cutter 15 cuts off a predetermined portion of the cloth 13 (points c and B in FIG. 2).
When the cloth 13 is rotated to the position indicated by ' and the end of the cloth 13 is temporarily fixed, the heater press 11 is pushed down and the press pin 12 is pressed and heated, and the adhered part made of thermoplastic resin is pressed down. The village 6 melts and impregnates the cloth 13 by the heat transmitted from the press pin 12 through the cloth 13, and begins to solidify the moment the press pin 12 is removed upward. Then, after a predetermined period of time has elapsed, the cloth 13 is reliably adhered to the back surface of the member to be adhered 6 by the molten resin. In addition, press pin 1
2 passes through the gap 17 of the reversing mechanism 7 and is brought into contact with the back surface of the member 6 to be adhered. In this case, the temperature at the tip of the press pin 12 must be higher than the melting temperature of the resin of the member to be adhered 6, and must be maintained within a range where the cloth 13 will not burn out or melt (in the case of chemical fibers). If the member to be adhered 6 is made of polystyrene and the cloth 13 is made of Tetron fiber, the temperature at the tip of the press pin 12 is appropriately 15,000 to 19,000 and should not exceed 200 qo. Also, from the time the press pin 12 is decompressed until the adhesion is completed, about 1 to 2
It is necessary to temporarily fix the cloth 13 between the sand and the cloth 13 using the reversing mechanism 7.For the four corners of the member to be adhered 6, before applying the four sides, The ends of the cloth 13 may be fixed as shown.

That is, the tenter 1 for corner reversal is placed at the four corners of the pedestal 5.
8 is rotatably pivoted, and a needle-like protrusion 1 is provided at the tip.
9 into the four corners of the cloth 13, bend it to the back side of the member to be adhered 6 while applying a predetermined tension, and fix it by driving the tacker nails 21 through the tacker 2. In this way, the four corners of the member 6 to be coated with sweetfish can be beautifully finished. Thus, according to the above embodiment,
It is possible to automate the work of pasting cloth, and at the same time, by molding the parts to be pasted with thermoplastic resin, it is possible to simply melt a part of the pasted part without applying adhesive in advance. Since the cloth can be fixed, the number of work steps can be reduced accordingly.

Moreover, in the case of this embodiment, it is sufficient to send out the cloth in a long rolled state and cut it to the required machine size, thereby reducing waste of cloth material. In the above explanation, the cloth is attached by heating and melting the adhered member 6 using a hot press pin, but the same effect can also be obtained by other methods such as ultrasonic oscillation or high frequency heating. be able to. As described above, according to the present invention, it is possible to automate the work of pasting the 'a' cloth, so that skilled work is not required.

'b} The time required for pasting can be extremely shortened.

{c} Since the cloth is beautifully pasted with a certain amount of tension applied in advance, it is possible to improve the walking ability.

[d- By forming the adhered member from thermoplastic resin, the work of applying adhesive can be omitted, which can reduce the number of work steps and work time. A large number of products can be made continuously using
Mass production can be achieved.

This excellent effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a cloth pasting device used in a cloth pasting method according to an embodiment of the present invention, FIGS. 2 a, b, and c are sectional views for explaining the pasting operation, and FIG. Figure 3 a, b
FIG. 2 is a plan view and a cross-sectional view for explaining a method of attaching a cope portion according to the above embodiment. 5... cradle, 6... member to be adhered, 7...
...Reversing mechanism, 9... Needle-shaped protrusion, 10.
... Press mechanism, 1 1 ... Heater press machine, (adhering mechanism), 12 ... Press pin, 13
...cloth, 14... tenter mechanism, 15
……cutter. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. Place a long piece of stretchable cloth that is larger than the adhered member on the surface of a member to be adhered, such as a plate or frame made of thermoplastic resin, and place the cloth around the member to be adhered. and a cutter means for cutting the outside of the cloth held by the reversing mechanism, the cloth is cut by the cutter means with tension applied to the cloth by the reversing mechanism, and the reversing mechanism The fabric is held stationary while being folded back to the back side of the member to be adhered, and then the back side of the member to be adhered is heated and melted, and the cloth is applied to this melted part. After the folded portion is fixed and the melted portion is solidified, the holding of the cloth in a stationary state by the reversing mechanism is released, and the reversing mechanism is returned to the periphery of the adhered member. How to attach the cloth.