JPS6145790A - Production of composite sheet - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for producing a composite sheet with a multilayer structure, which is applied to upholstery for vehicles and furniture, sports clothing, and the like.

Prior Art In the past, composite sheets of this type were manufactured by sewing means, for example using a quilting machine.

Problems to be Solved by the Invention In the case of a composite sheet sewn by a quilting machine, there are problems in that moisture permeates or permeates through the seams and that the surface effect is uniform.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a method for manufacturing a composite sheet that can suppress moisture penetration and permeation to improve waterproofness, and that can have various surface effects.

Means for Solving the Problems The present invention provides heat-fusible sheet-like upper skin material and lower skin material from the upper and lower sides of a band-shaped core material group that is arranged and transported in a parallel shape. The upper and lower skin materials are then welded in parallel lines at portions facing each gap between the core materials, and each of the core materials is layered on the upper and lower surfaces of the core group. A method for manufacturing a composite sheet in which upper and lower skin materials are respectively divided by weld lines and enclosed in bag-like bands connected in the width direction, the method comprising: one or both of the upper and lower skins H; is intermittently oversupplied to the core material group to intermittently form transverse wrinkle regions in the longitudinal direction in which wrinkle groups oriented in the width direction are scattered.

Function The present invention provides a composite sheet in which each core material is welded to upper and lower skin materials in parallel lines and is enclosed within bag-like bands connected parallel to the width direction, in which the horizontal wrinkles are partially removed. It is constructed so as to give a design effect to the surface.

EXAMPLE Next, an example of the apparatus used in the present invention and the method of manufacturing a composite sheet using this apparatus will be described with reference to the drawings. In the figure, 1 is a base sheet,
For example, elastic sheets formed to be elastically compressible and deformable, such as synthetic resin rubber foam sheets, non-woven fabrics, 11m webs, or laminates of these and other sheet materials, are particularly applicable, and in addition to these, hard sheets are also applicable. can be adopted.

2 is a first plate rotated at a constant speed to convey the base sheet 1;
A feed roller 3 is a knife installed in front of the first feed roller 2 and arranged along the width direction of the base sheet 1 to slit the MU sheet 1 being transported in the longitudinal direction and divide it in the width direction. 4 to 4 are core materials each formed into a strip shape by slitting the base sheet 1 and arranged in parallel in the width direction, and 5 to 5 are core materials 4 arranged in parallel that are inserted through each core material. This is a cylindrical guide member arranged in front of the knife 3 so that the gap can be adjusted in order to guide the core members 4 so that they are aligned in the lateral direction with gaps 6 to 6 in between.

7 is the upper skin material, which includes fabrics knitted and woven with synthetic fiber threads, heat-meltable sheets such as synthetic resin films and shifts;
Classification applies.

A second feed roller 8 is installed above the first feed roller 2 to transfer the upper skin material 7 and layer it on top of each core material 4. The speed is changed by a switching signal that is sent intermittently to supply at a constant speed or to temporarily increase the speed and supply excessively, and to rotate at a low speed.
It is possible to switch to increased speed rotation, and it is also possible to continuously drive rotation at low speed rotation.

Reference numeral 9 denotes a lower skin material, and a thermofusible sheet of the same type or a different type from the lower skin material 7 is applied, for example, a thermofusible fabric with stretchability is employed.

A third feed roller 10 is installed below the first feed roller 2 in order to transfer the lower skin material 9 and layer it under each core material 4. In order to supply the side at a constant speed or temporarily increase the speed to supply excess, the speed can be changed using an intermittent switching signal to switch between low speed rotation and increased speed rotation. It can be driven continuously by rotation.

Welding installed along the width direction of the laminate S to join the laminate S, in which 11 core materials 4 and upper and lower skin materials 7.9 are laminated, upper and lower by parallel linear welding lines 12 to 12. The apparatus employs ultrasonic welding means in this example, and a plate-shaped vibrator 13 that vibrates at an ultra-high speed in the vertical direction is vertically perpendicular to the laminate S on the upper side of the laminate S. On the other hand, a rotating shaft 111114 is reversibly mounted on the lower side of the laminate S, and the rotating shaft 14 is rotatable in the axial direction so as to be opposed to the gap 6 between each core material 4. Spur gear-shaped receiving members 15 to 15 arranged in the spacer and spacers 16 to 16 interposed between each receiving member 15 in order to expand and contract the arrangement interval of each core material 4 are alternately fitted. When the laminate S passes between the vibrator 13 and each receiving member 15, the lower skin material 9 is bent in a zigzag shape in the width direction by each guide member 5 and each receiving member 15. The transducer 13 and each receiving member 15 are moved to a tensioned state, and the upper and lower skin materials 7 and 9 are located between each core material 4 and facing each gap 6, respectively.
is intermittently heated and pressurized at minute intervals corresponding to the tooth spacing of each receiving member 15 and welded in parallel lines, and the laminate S is joined up and down, and the upper and lower skin materials 7 and 9 are attached to each weld line. 12
A composite sheet F is formed in which each core material 4 is penetratingly enclosed in each bag-like band 17 to 17 which are respectively partitioned and connected in the width direction. Then, when joining the laminate S, the second. 3rd feed roller 8°10
The upper and lower skin materials7.
9 is intermittently over-supplied to the core material 4, and the upper and lower skin materials 7, 9 are over-supplied to form a horizontal wrinkle region 19 in which wrinkle groups 18 to 18 oriented in the width direction are interspersed in the longitudinal direction. The upper and lower skin materials 7 and 9 are intermittently formed against the surface of the wafer, and the flat areas 20 and the horizontally wrinkled areas 19 are alternately connected in the longitudinal direction. A composite sheet F can be manufactured.

Note that 21 is a cutting knife that is installed to be vertically movable in order to cut the composite sheet F along the width direction every predetermined length.

Next, the operation and effects of the embodiment having the above configuration will be explained.

In this example, heat-fusible sheet-shaped upper skin material 7 and lower skin material 9 are respectively supplied from the upper and lower sides of four groups of strip-shaped core materials arranged in parallel and transported. The upper and lower surfaces of each core material 4 are layered, and then the upper and lower skin materials 7 and 9 are welded in parallel lines at portions facing each gap Ill 6 between each core material 4, so that each core material 4 is When forming a composite sheet F which is enclosed in bag-shaped bands 17 which are partitioned by each weld line 12 and connected in the width direction, one or both of the upper and lower skin materials 7.9 are attached to each core. The material 4 is intermittently over-supplied to form transverse wrinkle regions 19 in which wrinkle groups 18 oriented in the width direction are interspersed intermittently in the longitudinal direction.

Therefore, the laminate S is joined by each welding line 12 and integrated, which improves the physical properties and form stability of the composite sheet F and increases productivity. Upper and lower skin materials with elasticity and elasticity7.
9 is supplied under tension, each core material 4 is fed into each bag-shaped band 17.
Composite sheet F that is compressed and enclosed inside and has high elasticity
In addition, when a synthetic resin sheet is used as the surface material, a composite sheet F with excellent waterproofness can be created, which can be used for vehicle upholstery, furniture upholstery,
It can be applied to sports clothing, etc.

In particular, since the horizontal wrinkle area 19 is partially formed on one or both of the upper and lower surfaces of the composite sheet F, differences in appearance, gloss, unevenness, etc. between the horizontal wrinkle area 19 and the flat area 20 may cause The design effect of the surface is improved, and a pseudo-skin-like surface effect and unevenness are partially imparted, especially in the horizontal wrinkle area 19, thereby increasing the commercial value and increasing the hanging effect.

In the welding device 11 of the above embodiment, instead of the spur gear-shaped receiving member 15, a receiving member 15 whose teeth are curved in a wave shape with respect to the circumferential direction as shown in FIG. 6 is used on the rotating shaft 1.
+ A, or when the upper and lower skin materials 7 and 9 are welded by reciprocating the receiving member 15 in the axial direction of the rotary shaft 14, the composite sheet F is attached to the welding line 12 bent in a zigzag shape. Can be joined.

Further, other sheets may be inserted between the lower skin material 7 and each core material 4 or between the lower skin material 9 and each core material 4.

Effects of the Invention That is, the present invention supplies heat-meltable sheet-like upper skin material and lower skin material from the upper and lower sides of each strip-shaped core material group arranged in parallel and transferred. The upper and lower skin materials are layered on the upper and lower surfaces of the core material group, and then the upper and lower skin materials are welded in parallel lines at portions facing each gap between the core materials, so that each of the core materials covers each of the upper and lower skin materials. A method for manufacturing a composite sheet formed by dividing each sheet by a weld line and being enclosed in each bag-like band connected in the width direction, wherein one or both of the upper and lower skin materials are used as the core material! ! By intermittently over-supplying i to form horizontal wrinkle areas intermittently in the longitudinal direction, which are interspersed with wrinkle groups oriented in the width direction, the physical properties and form stability of the composite sheet can be improved. In addition to improving productivity and improving surface design, it also has a vine effect.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the device used in the present invention. Figure 1 is a side view, Figure 2 is a front view of the main parts, and Figure 3 is a road surface plane of the composite sheet. Figure, Figure 4 (a), (b)
5 is a side sectional view, FIG. 5 is a perspective view, and FIG. 6 is a front view showing the other side of the receiving member. 4... Core material 7... Upper skin material 9...
Lower skin material 12... Weld line 17... Bag-like band 19... Horizontal wrinkles Ganto Narita Akira Knit Service Co., Ltd. Agent Patent attorney Oka 1) Hide
Hiko size is exhausted■

Claims (1)

[Claims] Heat-meltable sheet-like upper skin material and lower skin material are respectively supplied from the upper and lower sides of the strip-shaped core material groups that are arranged and transferred in parallel, and are layered on the upper and lower surfaces of the core material group. Then, the upper and lower skin materials are welded in parallel lines at portions facing the gaps between the core materials, and each of the core materials is formed by dividing the upper and lower skin materials with each weld line. A method for manufacturing a composite sheet in which one or both of the upper and lower skin materials is intermittently supplied in excess to the group of core materials. 1. A method for manufacturing a composite sheet, characterized in that horizontal wrinkle areas in which wrinkle groups oriented in the width direction are interspersed are formed intermittently in the longitudinal direction.