JPH076123B2 - Non-woven fabric manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a nonwoven fabric manufacturing apparatus.

(Prior Art) A non-woven fabric manufacturing apparatus that drops a thin plate-shaped web while reciprocating in the width direction using a cross conveyor on a floor conveyor that moves in the horizontal direction and folds the web in a zigzag shape on the floor conveyor is It is conventionally known as disclosed in Japanese Laid-Open Patent Publication No. 62-117866.

However, in such a non-woven fabric manufacturing apparatus, it is inevitable that the folded-back portion of the webber floats above the floor conveyor and becomes wrinkled, which causes a problem that high-speed operation is difficult. Therefore, although the invention of the above-mentioned publication tries to prevent this defect by air suction, the position of the air suction port must be reset each time the width of the product changes, and this method is completely There were problems such as being unable to prevent lifting.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems of the related art, and it is possible to reliably prevent the folded portion of the web from being lifted up, and moreover, it is easy even when the width of the product changes. The present invention has been completed in order to provide a non-woven fabric manufacturing apparatus capable of handling the above.

(Means for Solving the Problems) The above-mentioned problems are, in a non-woven fabric forming apparatus for reciprocating a traverse carriage on a floor conveyor to fold a thin web W on the floor conveyor, a pair of rollers of a traverse carriage. The support plate pivotally attached to
The pressing roller that is rotated in the signal direction of the traverse carriage by the rotation of the roller, and the cylinder that moves down and pivots one of the pressing rollers via the support plate when the traverse carriage approaches the end of the stroke is used as the traverse carriage. This can be solved by a nonwoven fabric manufacturing apparatus characterized by being provided.

(Example) Next, the present invention will be described in detail with reference to the illustrated example.

In FIGS. 1 and 2, (1) is a floor conveyor that advances in a direction perpendicular to the plane of the drawing, and (2) is a cross conveyor device installed above it. The cross conveyor device (2) is a first conveyor (3) for lifting the web W,
A second conveyor (4) facing this, a third conveyor (5a) reciprocating between the position shown in FIG. 1 and the position shown in FIG. 2 below it, and a fourth conveyor (5) moving therewith.
It is composed by. Further, a traverse carriage (6) that reciprocates between the position shown in FIG. 1 and the position shown in FIG. 2 is provided on the lower surface of the fourth conveyor (5).

As shown in FIGS. 3 and 4, the traverse carriage (6) is provided with a pair of rollers (7) and (8), and each axis (13) of these rollers (7) and (8) is ),
The belt (10) stretched between the upper pulley (14) and the drive pulley (9) rotates in opposite directions as shown in the figure. Pressing rollers (11) and (12) are provided on both outer sides of these rollers (7) and (8).
These pressing rollers (11) and (12) are attached to support plates (15) and (16) pivotally attached to the shafts (13) and (14) of the rollers (7) and (8). , These support plates (15), (16) by cylinders (17), (18)
When the roller is moved up and down around the shafts (13) and (14) of the rollers (7) and (8), the pressing rollers (11) and (12) can also be moved up and down. The cylinders (17) and (18)
Is a pulse controller or the like so as to lower only the pressing rollers (11) and (12) on the side preceding the rollers (7) and (8) when the traverse carriage (6) approaches the end of its stroke. Is controlled by an appropriate control means.

Pressure roller (11), (12) and roller (7),
Two intermediate drive gears (19) and (20) are provided on the support plates (15) and (16) between (8) and the rollers (7) and (8), respectively. After that, the pressing rollers (11) and (12) are rotated in the direction opposite to the rollers (7) and (8) (that is, the direction in which the traverse carriage advances). As mentioned above, the pressure roller (11),
(12) is the shaft (13), (14) of the rollers (7), (8)
Since it is attached to the support plates (15) and (16) that are pivotally attached to the support rollers, the pressing rollers (11) and (12) and the drive rollers (19) and (20) always move up and down when the shaft is moved. (13),
Since it moves around (14), reliable power transmission is always performed to the pressing rollers (11) and (12).

(Operation) In the nonwoven fabric manufacturing apparatus of the present invention configured as described above, the traverse carriage (6) is reciprocated on the floor conveyor (1) that moves in the horizontal direction, and the thin plate supplied by the cross conveyor apparatus (2). It is the same as the conventional one that the web W in the shape of a strip is folded over the floor conveyor (2) from between the rollers (7) and (8) of the traverse carriage (6).

However, in the present invention, the traverse carriage (6)
Support plates (15) on both outer sides of the rollers (7), (8) of
Pressing rollers (11), (12) attached to (16)
Is provided, and when the traverse carriage (6) reaches the end of the stroke, the roller (7),
Only the cylinders (17), (18) on the side preceding the (8) are operated, and the support plates (15) pivotally attached to the shafts (13), (14),
One of the (16) is pivoted downward, and the pressing rollers (11) and (12) descend. As a result, as shown in FIG. 3, when the traverse carriage (6) approaches the left end of its stroke, the pressing roller (1
While 1) rotates in the direction opposite to the roller (7) (that is, the direction in which the traverse carriage advances), it moves toward the uplift of the left end of the web W and presses the web W firmly to lift it up accurately. It will be folded.

From the state shown in FIG. 3, the traverse carriage (6) further moves to the left to reverse the traveling direction to the right, and at this time, the web W is also folded back to form a lift as shown in FIG. 4 at the left end portion. However, when the traverse carriage (6) returns from the end of the stroke, the pressing roller (11) is raised as shown in FIG. Therefore, the pressing roller (11) does not catch the floating of the left end portion, and the lifting of the left end portion of the web W is the pressing roller that rotates in the traveling direction when the traverse carriage (6) next moves to the left end portion. Roller (1
By 1), it is pressed and folded in the same manner as described above. Further, also at the right end of the stroke, the pressing roller (12) similarly descends and rotates in the advancing direction, and the rising of the right end portion of the web W is pressed in the same manner as described above to accurately fold it.

As described above, according to the present invention, the nonwoven fabric is manufactured by accurately folding up the left and right folded-back portions of the web W. Further, according to the present invention, even when the width of the product is changed, it is only necessary to change the operation timing of the cylinders (17) and (18), and it is possible to deal with the problem more promptly than the conventional device.

(Effects of the Invention) As described above, the present invention enables accurate folding by pressing firmly with a pressing roller that rotates in the direction in which the folded portion of the web moves up, and the width of the product Since the non-woven fabric manufacturing apparatus can easily cope with a change in the above, the non-woven fabric manufacturing apparatus that has eliminated the conventional problems has a great contribution to the industry.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a side view showing the traverse carriage moved to the right end, FIG. 3 is an enlarged side view of the essential parts, and FIG. 4 is a traverse carriage. FIG. 6 is an enlarged side view of a main part showing a state where is about to return from the end of the stroke. (1): Floor conveyor, (6): Traverse carriage, (7), (8): Roller, (11): Pressing roller, (13), (14): Shaft, (15), (16): Support Board, W:
Web.

Claims (1)

[Claims] 1. A nonwoven fabric forming apparatus for reciprocating a traverse carriage (6) on a floor conveyor (1) to fold a thin web W onto the floor conveyor (1). The traverse carriage (6) is attached to the support plates (15) and (16) pivotally attached to the shafts (13) and (14) of the rollers (7) and (8) by the rotation of the rollers (7) and (8). Of the pressing rollers (11) and (12) that rotate in the direction of travel of the traverse carriage (6) and the supporting plate (15) and (16) when the traverse carriage (6) approaches the end of the stroke. Cylinder (1) for lowering and pivoting (11) and (12)
A nonwoven fabric manufacturing apparatus characterized in that the traverse carriage (6) is provided with (7) and (18).