JPH0796495A - Method and device for manufacturing film for net-shaped nonwoven fabric - Google Patents

Abstract

PURPOSE:To make the width of a receiving roll surface variable without changing the receiving roll, and prevent damages to a cutter blade of a cutter roll. CONSTITUTION:In a method and a device for manufacturing a film for the net-shaped nonwoven fabric the contact of a cutter blade 2 with a receiving surface 4aA of a receiving roll is prevented by a non-contact holding means 60, and in addition, the width (b) of the receiving roll surface is made arbitrary by selectively mounting adjustment rings 30, 31 on each end of a receiving roll part 4a of the receiving roll 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing a film for reticulated non-woven fabric, and more particularly, the receiving roll surface width of the receiving roll can be changed without replacing the receiving roll and the cutter blade of the cutter roll. To a new improvement to prevent damage to

[0002]

2. Description of the Related Art As a conventional method and apparatus for producing a film for reticulated non-woven fabric of this type, for example, in the case of Yokoslitta receiving roll disclosed in Japanese Utility Model Publication No. 3-57439 shown in FIG. A blade 2 is formed on the surface of a metal roll 1 which is heated and whose temperature is controlled. Notches 3 are formed in each blade 2 and
A metal roll 4 is provided corresponding to this metal roll 1,
The receiving roll surface 4aA of the receiving roll portion 4a of the metal roll 4
Is made of rubber, plastic, or the like.

The receiving roll surface width D of the receiving roll surface 4aA corresponds to the intended cut width of the film 7. Further, the receiving roll surface 4aA is immersed in water in the bath 10 and cooled.

As another conventional example, the structure shown in FIG. 9 is generally adopted. That is, the cutter roll 1 having a large number of blades 2 and the receiving roll 4 are combined so as to face each other, and the original fabric 7 made of a film is guided between the cutter roll 1 and the receiving roll 4. In this case, the cutter roll 1 is urged in the direction of arrow A through the cylinder 8, and the blade 2 receives the receiving roll surface 4a of the receiving roll 4.
Hold it so that it slides lightly on A, and set the receiving roll 4 to the motor 5
It was rotating at. Therefore, when the original fabric 7 is inserted between the cutter roll 1 and the receiving roll 4, the blade 2 successively cuts through the original fabric 7, and the blade 2 cuts the receiving roll surface 4 of the receiving roll 4.
By making sliding contact with aA, penetrating cuts 7a were successively formed in the original fabric 7.

[0005]

Since the conventional method for producing a film for a reticulated nonwoven fabric is configured as described above, the following problems exist. That is, in the case of the configuration of FIG. 8, in order to form the through hole, the blade of the metal roll is heated, the rubber hardness of the receiving roll surface is set to 40 to 95 degrees, and the rotational runout of the roll is set to several microns. In some cases, the parts of the through holes were fused by heat and the initial purpose could not be achieved. Further, the metal roll, which is a cutter roll, may be pushed too much and the blade may catch the roll and damage the blade. Furthermore, when the type of original fabric is changed and the cut width applied due to the appropriate draw ratio is adjusted, it is necessary to replace either roll or both rolls. Further, in the case of the configuration of FIG. 9, when the raw material is cut to form a cut, the tip of the blade makes sliding contact with the roll, so the blade may be worn and damaged at the same time. Sometimes it went down. Further, when the blade is worn or damaged, the cutter roll has to be replaced, resulting in a large maintenance cost.

The present invention has been made to solve the above problems. In particular, the receiving roll surface width of the receiving roll can be changed without replacing the receiving roll, and the cutter blade of the cutter roll can be An object of the present invention is to provide a method and an apparatus for producing a film for reticulated non-woven fabric which prevents damage.

[0007]

In the method for producing a film for reticulated non-woven fabric according to the present invention, a plurality of non-penetrating cuts of non-penetrating form are formed on a raw fabric made of a film by using a cutter roll and a receiving roll. In the method for producing a film for reticulated non-woven fabric as described above, the receiving roll surface width of the receiving roll is made variable by an adjusting ring movably provided on the receiving roll.

A reticulated nonwoven fabric film manufacturing apparatus according to the present invention is for a reticulated non-woven fabric in which a plurality of non-perforated non-perforated cuts are formed by using a cutter roll and a receiving roll on an original fabric made of a film. In a film manufacturing apparatus, a non-contact holding means for bringing a cutter blade of the cutter roll and the receiving roll into a non-contact state, and an adjustment movably provided on an end side of the receiving roll portion of the receiving roll. A ring and a fixing means for fixing the adjusting ring to the receiving roll are provided, and the receiving roll surface width of the receiving roll portion is variable by the adjusting ring.

More specifically, the adjusting ring is composed of a plurality of rings.

More specifically, the non-contact holding means is
A cutter roll collar portion provided on the cutter roll,
And a receiving roll flange portion that is provided on the receiving roll and is in contact with the cutter roll flange portion.

More specifically, the non-contact holding means is composed of a cotter provided between the cutter roll and the receiving roll.

More specifically, the cutter roll flange portion and the receiving roll flange portion are detachably replaceable with the cutter roll and the receiving roll, respectively.

[0013]

In the method and apparatus for producing a film for a reticulated nonwoven fabric according to the present invention, the adjusting rolls having the same diameter as the receiving roll are movably provided at both ends of the receiving roll. The receiving roll surface width of the receiving roll part can be made variable by setting the number of adjusting rings to be attached to the roll part, and even when changing the draw ratio.
The receiving roll surface width can be freely changed without changing the receiving roll. Furthermore, since the cutter blade and the receiving roll are held in non-contact by the non-contact holding means,
Since the cutter blade does not come into contact with the receiving roll surface of the receiving roll portion, damage to the cutting edge of the cutter blade can be completely prevented.

[0014]

The preferred embodiments of the method and apparatus for producing a film for reticulated nonwoven fabric according to the present invention will be described in detail below with reference to the drawings. The same or equivalent parts as those of the conventional example will be described using the same reference numerals. FIG. 1 is a configuration diagram showing a main part of an apparatus for producing a reticulated nonwoven fabric film according to the present invention, FIG.
Is a perspective view showing the cutter roll of FIG. 1, FIG. 3 is a configuration diagram showing another usage state of FIG. 1, and FIGS. 4 to 7 are configuration diagrams showing other usage states.

1 and 2, reference numeral 1 denotes a cutter roll rotatably provided through a pair of first bearings 20. The cutter roll 1 has a pair of shaft portions 1a and A pair of cutter roll collars 1b continuous with the shaft portion 1a, a cutter roll portion 1c continuous with each cutter roll collar portion 1b, a cutter blade 2 formed on a cutter roll surface 1cA of the cutter roll portion 1c, Notch 3
It consists of and.

The cutter roll 1 is provided with a receiving roll 4 which is rotatably provided via a pair of second bearings 21 and is entirely made of metal, and the cutter roll 1 has a pair of receiving rolls. 4b, a pair of receiving roll flanges 4c continuous with the shaft 4b, receiving rolls 4a continuous with the receiving roll flanges 4c, and receiving roll surfaces formed on the receiving rolls 4a. 4aA and two sets of first and second adjusting rings 3 movably mounted on both end sides of the receiving roll section.
It is composed of 0 and 31.

Since the collar portions 1b and 4c are in contact with each other, the cutting edge 2a of the cutter blade 2 of the cutter roll 1 is formed.
And the receiving roll surface 4aA are held in a non-contact state with each other so that the cutting edge 2a is not damaged, and the blade portions 1b and 4c prevent the cutter blade 2a and the receiving roll 4 from being damaged. The non-contact holding means 60 for keeping in contact is configured. The collars 1b and 4c may have various diameters and can be replaced by screws so that they can be replaced.

A plurality of screw holes 4A are formed on the end surface of the receiving roll portion 4a, and each adjusting ring 31 is provided with a through hole 40 and a fixing screw hole 41 corresponding to the screw holes 4A. At the same time, a penetrating guide hole 51 for guiding a fixing bolt 50 as a fixing means is formed in each of the collars 1b and 4c. In addition, this fixing bolt 50
As shown in FIGS. 4 to 6, is configured such that an arbitrary size having a different length is used according to the usage state. The fixing bolt 5 as this fixing means
0 is not limited to a bolt, and other pins or the like can be used.

Next, a case will be described in which a slit is actually formed in the original fabric 7 made of a film in the above-mentioned configuration. First, as shown in FIG. 1, when a reticulated nonwoven fabric film is manufactured using a raw fabric 7 having the same width as the cutter roll surface width a of the cutter roll surface 1cA of the cutter roll portion 1c of the cutter roll 1, Roll receiving part 4 of roll 4
Since the receiving roll surface width b of a is a> b (a is the cutter roll surface width), two sets of adjusting rings 30 and 31 are attached to both ends of the receiving roll portion 4a, and the fixing bolts 50 When fixed as shown by 4, the receiving roll surface width of the receiving roll 4 is b + 4c (c is the adjusting rings 30, 31).
Width), and the relationship of a = b + 4c is established, and the receiving roll surface width b can be substantially increased. In this state, by guiding the original fabric 7 between the rolls 1 and 4, the original fabric 7
A non-penetrating non-penetrating slit corresponding to the pattern of the cutter blade 2 is automatically formed in the.

Further, as shown in FIG. 3, when the receiving roll surface width b of the receiving roll 4 is only b and the adjusting rings 30 and 31 are not required, the adjusting rings 30 and 31 are respectively received. 4a, and each adjusting ring 30, 31 is fixed to the receiving roll collar 4c by a fixing bolt 50 as shown in FIG.

As various combinations of the above-mentioned adjustment rings 30 and 31, the configurations shown in FIGS. 4 to 6 can be used. First, in the case of FIG. 4, two sets of adjusting rings 30 and 31 are positioned at the end of the receiving roll portion 4a, and fixing bolts 50 are provided through the through holes 40 of the adjusting rings 30 and 31, respectively. By screwing the bolt 50 into the screw hole 4A of the receiving roll portion 4a, two sets of adjustment rings 3
0 and 31 can be fixed.

Further, in the case of FIG. 5, the first adjusting ring 30 is fixed to the receiving roll portion 4a through the fixing bolt 50, and the unnecessary second adjusting ring 31 is guided to the guide hole 51 of the receiving roll collar portion 4c.
It can be fixed to the receiving roll collar portion 4c by the fixing bolt 50 provided on the.

Further, in the case of FIG. 6, two sets of adjusting rings 3 are provided.
0 and 31 can be fixed to the receiving roll collar portion 4c. In this case, the fixing bolt 50 is screwed into the fixing screw hole 41 of the first adjusting ring 30, and the through hole 40 of the second adjusting ring 31 is screwed.
The fixing bolt 50 is passed through.

As the combination of the receiving roll surface widths b by the combination of the adjusting rings 30 and 31, b, b +
Five types of c, b + 2c, b + 3c, and b + 4c can be used, but by setting the number of the adjusting rings 30 and 31 to be two or more, the above-mentioned combination can be further achieved. Although only the roll portion of the manufacturing apparatus is shown in the above-described embodiment, other raw fabric supply portion, winding portion and the like are omitted. The non-contact holding means 60 described above is not limited to the combination of the collar portions 1b and 4c, but as shown in FIG. 7, the shaft non-portions 1a and 4b are connected by a well-known cotter 70, and the shaft portions are connected. The distance between the cutter blade 2a and the receiving roll portion 4 can be variably brought into a non-contact state by adjusting the distance between 1a and 4b.

[0025]

The method and apparatus for producing a film for reticulated non-woven fabric according to the present invention is constituted as described above,
The following effects can be obtained. That is, the receiving roll surface width of the receiving roll can be freely changed by using the adjusting ring, and even when the draw ratio is changed, the receiving roll surface corresponding to the change of the product width in a short time without changing the receiving roll. Can be width. Further, since the cutter roll flange portion and the receiving roll flange portion are in contact with each other to maintain the distance between the cutter blade and the receiving roll surface, the cutter blade and the receiving roll surface do not come into contact with each other, and the length of the cutter blade is long. It is possible to achieve a long life.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a main part of an apparatus for producing a film for reticulated nonwoven fabric according to the present invention.

FIG. 2 is a perspective view showing the cutter roll of FIG.

FIG. 3 is a configuration diagram showing another usage state of FIG.

FIG. 4 is a configuration diagram showing a usage state of an adjustment ring.

FIG. 5 is a configuration diagram showing a usage state of an adjustment ring.

FIG. 6 is a configuration diagram showing a usage state of an adjustment ring.

FIG. 7 is a configuration diagram showing another embodiment of FIG.

FIG. 8 is a perspective view showing a conventional manufacturing apparatus.

FIG. 9 is a configuration diagram showing another conventional manufacturing apparatus.

[Explanation of symbols]

 1 Cutter Roll 4 Receiving Roll b Roll Surface Width 1b Cutter Roll Collar 4a Receiving Roll 4c Receiving Roll Collar 7 Raw Fabric 30, 31 Adjusting Ring 50 Fixing Means (Fixing Bolts) 60 Non-contact Holding Means 70 Cotter

Claims (6)

[Claims] 1. A film for reticulated non-woven fabric, comprising a cutter roll (1) and a receiving roll (4) formed on an original fabric (7) made of a film to form a plurality of non-penetrating non-penetrating slits. In the manufacturing method of, the receiving roll (4) by the adjusting ring (30, 31) movably provided on the receiving roll (4).
The method for producing a film for reticulated non-woven fabric, wherein the receiving roll surface width (b) is variable. 2. A film for reticulated non-woven fabric, wherein a plurality of non-penetrating slits of non-penetrating shape are formed by using a cutter roll (1) and a receiving roll (4) on a raw fabric (7) made of a film. In the manufacturing apparatus, the cutter blade (2a) of the cutter roll (1) and a non-contact holding means (60) for bringing the receiving roll (4) into a non-contact state, and the receiving roll (4) An adjustment ring (30, 30 provided movably on the end side of the roll section (4a)
31) and a fixing means (50) for fixing the adjusting ring (30, 31) to the receiving roll (4), the adjusting ring (3
0, 31) has a constitution in which the receiving roll surface width (b) of the receiving roll portion (4) is made variable, and a device for producing a film for reticulated non-woven fabric. 3. The apparatus for producing a reticulated non-woven film according to claim 2, wherein the adjusting rings (30, 31) are composed of a plurality of pieces. 4. The non-contact holding means (60) includes a cutter roll collar portion (1b) provided on the cutter roll (1) and the cutter roll collar portion (1b) provided on the receiving roll (4). An apparatus for producing a film for reticulated non-woven fabric according to claim 2 or 3, characterized in that it comprises a receiving roll collar portion (4c) which is in contact with. 5. The non-contact holding means (60) comprises a cotter (70) provided between the cutter roll (1) and the receiving roll (4), according to claim 2 or 3. A method for producing a film for reticulated nonwoven fabric. 6. The cutter roll brim portion (16) and the receiving roll brim portion (4c) are detachably replaceable with the cutter roll (1) and the receiving roll (4), respectively. The apparatus for producing a film for reticulated non-woven fabric according to claim 4.