JPH0641176B2 - Device for intermittently attaching stretchable material to cloth-like sheet - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an intermittent sticking device for a cloth-like sheet of a stretchable material used in an elastic process of a paper diaper or the like.

(Prior Art) An intermittent sticking device for a cloth-like sheet of a stretchable material, which has been used in the conventional elastic diaper forming process, is used in the second and third embodiments.
In the figure, (01) is a stretchable material, (04) is a transfer drum, (02) is a large number of air intake holes provided on the outer peripheral surface of the transfer drum (04), and (03) is the transfer drum (04). ) Lower blades mounted on the outer peripheral surface of the transfer drum (04) at intervals in the circumferential direction.
Intake duct inscribed in, (06) is a rotary cutter, (07)
Is a cloth-like sheet, (08) is a pressure bonding belt, and the stretchable material (01) coated with an adhesive is supplied to the transfer drum (04) in an expanded state, and is adsorbed by the intake hole (02), Cutter (06)
After reaching the position, it is cut by the upper blade of the rotary cutter (06) and the lower blade (03) of the transfer drum (04). At this time, the part of the stretchable material (01) that is not adsorbed by the intake holes (02) shrinks, and the stretchable material (01) is intermittently placed on the transfer drum (04). Next, this stretchable material (01) reaches the supply position of the cloth-like sheet (07), and the stretchable material (01) and the cloth-like sheet (07) supplied onto the transfer drum (04) are bonded together by a pressure bonding belt.
The (08) presses the transfer drum (04) in the direction of the pressure to bond them together, and the pressure belt (08) is discharged from the downstream side in the rotational direction to the outside of the transfer drum (04).

(Problems to be Solved by the Invention) In the conventional device for intermittently attaching a stretchable material to a cloth-like sheet as shown in FIGS. 2 and 3, the gap between the front and rear of the stretchable material (01) to be attached intermittently is set. Is given by the shrinkage of the stretchable material (01), the stretchable material (01) is wasted by the shrinkage allowance. Further, the speed ratio between the transfer drum (04) and the rotary cutter (06) is 1: 3, and the rotary cutter (06) has only one upper blade, whereas the transfer drum (04) has a lower blade ( There are 3 pieces of 03), and adjusting the blade alignment of these upper and lower blades was troublesome.

(Means for Solving Problems) The present invention addresses the above problems, and a slit and a clamp device are provided at predetermined circumferentially spaced positions on the outer peripheral surface of the drum, and the entire area of the drum is sucked. Transfer drum,
It has a cloth-like sheet feeding device, a stretchable material feeding device, a stretchable material cutting device, and a peeling device for peeling the cloth-like sheet from the outer peripheral surface of the transfer drum. It is characterized in that they are arranged on the downstream side in the rotational direction of the transfer drum in that order.

The object of the present invention is to reduce the amount of stretchable material used. Another point is to provide an intermittent sticking device for an improved stretchable cloth-like sheet that does not require adjustment of blade alignment.

(Operation) The device for intermittently attaching the stretchable material to the cloth-like sheet of the present invention is configured as described above, and when the slit of the transfer drum reaches the cloth-like sheet feeding device, the cloth-like sheet is transferred to the transfer drum. Of the cloth-like sheet is sucked into the transfer drum through the slit, and is then sucked into the transfer drum to form a U-shaped portion (U-shaped portion for forming a gap between the front and rear stretchable materials). Is formed, and then the clamp device is closed, the outer peripheral surface side of the U-shaped portion is clamped, and when the elastic material supply device is reached, the elastic material that has been stretched and has adhesive applied to one surface on the transfer drum side is It is supplied to the outer peripheral surface of the transfer drum,
Next, when the stretchable material is pressure-bonded to the portion excluding the U-shaped portion of the cloth-like sheet and stuck to each other and reaches the stretchable material cutting device, only the stretchable material is cut and reaches the peeling device. At this time, the cloth-like sheet and the stretchable material intermittently attached to the cloth-like sheet are peeled off from the transfer drum and sent to the next step.

(Example) Next, a device for intermittently applying a stretchable material to a cloth-like sheet according to the present invention will be described with reference to an example shown in Fig. 1. (1) is a hollow transfer drum, and the transfer drum (1 ) A, B, C,
Slits are provided at the E, F, and G positions, and the respective slits are open to the outer peripheral surface of the transfer drum (1). Further, the entire area of the transfer drum (1) is sucked by suction means (not shown). Further, (4) is a clamp device attached to the transfer drum (1) with the slits sandwiched therebetween, (2) is a cloth-like sheet, (3a) is a nip roller (cloth-like sheet feeding device), and (5). Is a stretchable material, (3b) is a nip roller (stretchable material supply device), (6) is a press roller, (7) is a rotary cutter (stretchable material cutting device), and (8) is a dancer roller (stripping device). ) And (9) are Nipro rollers (stripping devices). The transfer roller (1) from the Nipro roller (3a)
The feeding speed of the cloth sheet (2) supplied to the transfer drum (1)
It is faster than the peripheral speed.

Next, the operation of the device for intermittently attaching the stretchable material to the cloth-like sheet shown in FIG. 1 will be specifically described. Transfer drum (1)
When the slit reaches the position A, the cloth-like sheet (2) is supplied to the outer peripheral surface of the transfer drum (1) through the nip roller (3a) and is adsorbed. When the slit reaches the position B, a part of the cloth-like sheet (2) is sucked into the transfer drum (1) through the slit to form a U-shaped portion (a gap is formed between the front and rear elastic materials (5)). U-shaped portion) is formed. When the slit reaches the C position, the clamp device (4) closes and U
The outer peripheral surface side of the character portion is clamped. Also, the slit is D
When it reaches the position, the stretchable material (5), which is stretched and has an adhesive applied on one side of the transfer drum (1), is applied to the nip roller (3b).
Is supplied to the outer peripheral surface of the transfer drum (1) via the press roller (6), and the elastic material (5) is transferred to the portion excluding the U-shaped portion of the cloth sheet (2) when passing the E position. They are crimped and bonded together. When the slit reaches the F position, only the stretchable material (5) is cut by the rotary cutter (7). When the slit reaches the G position, the cloth-like sheet (2) and the stretchable material (5) intermittently attached on the cloth-like sheet (2) are dancer roller (8) and nip roller (9).
Is peeled off from the transfer drum (1) and sent to the next step. The dancer roller (8) descends when the U-shaped portion is opened, and prevents the composite material (cloth sheet (2) and stretchable material (5)) sent to the next step from loosening. .

(Effect of the Invention) As described above, the device for intermittently applying the stretchable material to the cloth-like sheet of the present invention, when the slit of the transfer drum reaches the cloth-like sheet supplying device, the cloth-like sheet is attached to the outer peripheral surface of the transfer drum. And then sucked into the transfer drum through a slit to form a U-shaped portion (U-shaped portion for forming a gap between the front and rear stretchable materials). Then, the clamp device is closed to clamp the outer peripheral surface side of the U-shaped portion, and when the elastic material supply device is reached, the elastic material is stretched and the adhesive is applied to one surface of the transfer drum side to transfer the elastic material. Of the cloth-like sheet, and then the elastic material is pressure-bonded to the portion excluding the U-shaped portion of the cloth-like sheet, and the elastic material is attached to each other. When reaching the elastic-material cutting device, only the elastic material is cut. ， When reaching the peeling device, cloth sheet and the same cloth sheet The stretchable material that is intermittently bonded to the upper part is peeled off from the transfer drum and sent to the next process. The interval between the front and rear of the stretchable material that is intermittently attached can be formed by the U-shaped portion. Therefore, the amount of the stretchable material used can be reduced as compared with the conventional case where the distance between the front and rear of the stretchable material that is intermittently attached is given by the shrinkage of the stretchable material. Further, since only the stretchable material is cut as described above, it is possible to eliminate the need for adjusting the blade alignment.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an intermittent sticking device of a stretchable material to a cloth-like sheet according to the present invention, and FIG. 2 is a conventional intermittent sticking device of a stretchable material to a cloth-like sheet. The side view shown in FIG. 3 is a front view showing a part of the transfer drum of the intermittent attachment device. (1) …… Transfer drum, (2) …… Cloth sheet, (3a) …… Cloth sheet feeding device, (4) …… Clamping device, (3b) …… Stretchable material feeding device, (6) ...... Press roller, (7) …… Stretchable material cutting device, (8) (9) …… Peeling device.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location // B32B 35/00 7639-4F B29L 31:48 4F (72) Inventor Toshizo Ishida Hiroshima Hiroshima 4-22 Kannon Shinmachi, Nishi-ku, Yokohama-shi Mitsubishi Heavy Industries Ltd. Hiroshima Works (72) Inventor Suzuki Ma Ehime Prefecture, Kawanoe 834 Kawanoe-cho, Uni Cham Co., Ltd. Kokumitsu Office (72) Inventor Ochi Kozo Ehime Prefecture 834, Kawanoe-cho, Kawanoe-shi, Kunimitsu Office, Uni Ciyam Co., Ltd. (72) Inventor, Shoji Nakano 834, Kawanoe-cho, Kawanoe-shi, Ehime Prefecture, Kunimitsu Office, Uni

Claims (1)

[Claims] 1. A transfer drum provided with a slit and a clamp device at predetermined intervals in the circumferential direction on the outer peripheral surface of the drum and sucking the entire area of the drum, a cloth-like sheet feeding device, and a stretchable material feeding device. It has a stretchable material cutting device and a peeling device for peeling the cloth-like sheet from the outer peripheral surface of the transfer drum, and the above devices are arranged in that order in the vicinity of the transfer drum and on the downstream side in the rotational direction of the transfer drum. A device for intermittently attaching a stretchable material to a cloth-like sheet.