JPH07100351B2 - Method and device for applying double-sided adhesive tape to a plastic sheet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for sticking a double-sided adhesive tape to a foamed plastic sheet, and in particular to a method for manufacturing a vibration-proof and sound-proofing sticky sheet for automobile acoustic equipment, and Regarding the device.

(Prior Art) When a double-sided adhesive tape is attached to a thin and flexible foamed plastic sheet (hereinafter referred to as a sheet), a press roll machine simply having rolls on the upper and lower sides causes wrinkles and attempts to prevent wrinkles. , If the sheet is applied with resistance, the sheet becomes thin and both are defective products. Therefore, as shown in FIG. 3, the sheet 5 is placed on a smooth table 12 and the double-sided adhesive tape is used. There is no other way but to put 8 (hereinafter referred to as tape) on top and roll the roller 11 on the tape or to adhere the tape by hand. This method is inefficient and cannot be mass-produced.

(Problems to be Solved by the Invention and Means for Solving the Problems) The present invention has been proposed in view of the above-mentioned drawbacks.
The present invention provides a method and apparatus for sticking the tape so that it does not become thin when it is stuck to the tape 8.

The problem is that when the unwound sheet 5 is passed through the tension control 4, the peripheral speed of the tension controls 4, 4'is slower than the peripheral speed of the press rolls 2, 3 to the extent that the sheet does not loosen, and then the sheet The problem can be solved by sticking the tape from the tape feeder 8 to the sheet 5 with the press rolls 2 and 3 and automatically winding it with the winder 4.

In winter, the heat roll 2 is heated to increase the adhesive strength, so a heat-resistant silicone rubber roll is used, and the press roll 3 is a non-adhesive silicone rubber roll so that no adhesive tape is attached. However, once set, the tape is automatically attached to the unwound sheet 5 and wound up.

(Embodiment) FIG. 1 is a side view showing an example of the device of the present invention, in which a sheet 5 is passed through a tension control roll 4 and a tape is circulated around a press roll 2 from a tape feeder 8 and the sheet. Is pressed by the air cylinder 1 and the sheet 5 and the tape 8 are adhered to each other.

The tension control roll 4 is not forcibly driven, and the lower tension control roll 4 ′ is rotated by the belt hung on the rotary shaft of the press roll 3,
The diameter of the pulley is adjusted so that the peripheral speed of the roll 4'is slightly lower than the peripheral speed of the press roll 3. Seat 5 has tension control 4, 4 '
It does not sag between the press rolls 2 and 3 and does not extend thinly.

The tension control 4 may not be freely rotated but may be driven forcibly, or a separate control motor may be used without taking the drive source from the press roll shaft.

Further, instead of the tension control 4 ', an endless belt conveyor may be used, and when the tape is not a roll but a sheet-like sheet, the belt conveyor may have a function of a sheet guide table.

(Advantages of the Invention) In the present invention, since a flexible and thin foam plastic sheet is attached to a double-sided adhesive tape with almost no tension, wrinkles do not occur, and extension due to excessive tension does not occur, so that it is always thick. It is possible to obtain a product of constant length.

[Brief description of drawings]

FIG. 1 is a side view of the device of the present invention, FIG. 2 is an explanatory view showing how the tension control roll 4 presses the extension force of the sheet 5, and FIG. 3 is a side view showing a conventional method. 1 ... Air cylinder for press, 2 ... Press roll for pressurizing and heating, 3 ... Non-adhesive press roll, 4, 4 '... Tension control roll, 5 ... Sheet, 6 ... Sheet, Tape adhesive winding sheet, 7 ... Winding Machine drive machine, 8 ... Tape supply machine, 9 ... Winding machine, 10 ... Unwinding machine, 11 ... Roll, 12 ...
Stand.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-54-90273 (JP, A) JP-A-62-105619 (JP, A) Actually opened 54-38169 (JP, U) Actual-opened Sho-56- 102038 (JP, U) JP-B-48-4398 (JP, B1)

Claims (3)

[Claims] 1. When a double-sided adhesive tape is attached to one surface of a foamed plastic sheet wound in a roll shape, the foamed plastic sheet is unrolled, and the sheet is passed through a tension control roll, and then the above-mentioned sheet is formed by a press roll. A method for adhering a foamed plastic sheet and a double-sided adhesive tape, which comprises adhering a double-sided adhesive tape and winding it. 2. An unwinder for a foamed plastic sheet wound into a roll, a roll or a conveyor for guiding the unwound plastic sheet, and a roll for tension control of the plastic sheet provided on the roll or the conveyor. , A double-sided adhesive tape feeder, a sticking machine for sticking the above-mentioned plastic sheet and the double-sided adhesive tape, which comprises an upper heating roll, a lower receiving roll, and a winder, A device that attaches double-sided adhesive tape to a sheet. 3. The apparatus according to claim 2, wherein the lower receiving roll is coated with a material that does not accept the adhesive of the double-sided adhesive tape.