JP2012255229A - Apparatus for opening layered product of fiber processed articles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for opening a layered product of fiber processed articles, which can improve opening efficiency as compared to a conventional apparatus.SOLUTION: An apparatus 1 for opening a layered product of fiber processed articles, which opens a layered product LF of fiber processed articles produced by stacking a plurality of sheet-like fiber processed articles, comprises: an opening cylinder 11 rotating around an axis; a pair of feed rollers 12 provided in the vicinity of the outer peripheral surface of the opening cylinder to transport the layered product of fiber processed articles toward the outer peripheral surface of the opening cylinder; and press rollers 13 including a plurality of press rollers 131 and 132 adjacently provided so as to be aligned on the opening cylinder rotating direction side of the feed rollers along the outer periphery of the opening cylinder. The press rollers are so provided that the press roller located farther from the feed rollers has a smaller space between the outer peripheral surface of the press roller and the outer peripheral surface of the opening cylinder.

Description

  The present invention relates to a fiber-opening device for a fiber processed product laminate. More specifically, the present invention relates to a fiber-opening device for a fiber processed product laminate that can improve the fiber-opening efficiency as compared with the conventional art.

  Conventionally, it is known that a sheet-like fiber processed product such as a nonwoven fabric, a woven fabric, and a knitted fabric, a fiber processed product laminate obtained by laminating them, or an end material thereof are opened and reused. As a method of the opening process, for example, as shown in FIG. 4, a main roller 100 (opening cylinder) that rotates with a blade provided on the outer peripheral surface, and a roller opening object that is provided in the vicinity of this roller. It is known to use an apparatus that includes a pair of gripping rollers 101 (feed rollers) that grip S and feed it to the opening cylinder. In such an apparatus, the opening object S is sent out by a feed roller, supplied to the opening cylinder side, and finely loosened and opened. However, at this time, the opening object S is lifted from the opening cylinder and is not sufficiently opened, and an unopened lump may be generated.

  For this reason, in addition to the above-described configuration, a plurality of auxiliary gripping rollers are arranged adjacent to each other along the outer periphery of the opening cylinder so as to be aligned with the rotation direction of the opening cylinder of the feed roller to prevent lifting. Is known (see, for example, Patent Documents 1, 2, and 3).

Japanese Patent Laid-Open No. 53-31822 JP-A-53-81731 JP 54-50627 A

  However, even if it is a method as shown by the said patent documents 1-3, when the opening target slips between the holding | maintenance auxiliary | assistant roller and the opening cylinder, the opening state will become inadequate. was there.

  In view of the above problems, an object of the present invention is to provide a fiber-fabricated product spreader that can improve the fiber-opening efficiency as compared with the prior art.

In order to solve the above problems, the invention described in claim 1 is a fiber processed product laminate opening device that opens a fiber processed product laminate formed by stacking a plurality of sheet-like fiber processed products. And
An opening cylinder that rotates around an axis;
A pair of feed rollers that are provided in the vicinity of the outer peripheral surface of the opening cylinder, and convey the fiber processed product laminate toward the outer peripheral surface of the opening cylinder;
A pressing roller group having a plurality of pressing rollers provided adjacent to the rotation direction of the opening cylinder of the opening roller and provided along the outer periphery of the opening cylinder;
The gist of the press roller group is such that the interval between the outer peripheral surface of each press roller and the outer peripheral surface of the opening cylinder is such that the press roller away from the feed roller becomes smaller. .

  The gist of the invention of claim 2 is that, in claim 1, the diameter of the pressing roller is set smaller than the diameter of the feed roller.

  The gist of a third aspect of the present invention is that, in the first or second aspect, a groove is formed along the axial direction on the outer peripheral surface of the pressing roller.

  According to a fourth aspect of the present invention, in the third aspect, the groove has a shape in which a cross-sectional shape of the groove is widened so that a skirt spreads from the bottom wall of the groove toward the surface of the pressing roller. It is a summary.

According to the fiber-fabricated product opening apparatus of the present invention, when opening a fiber-processed product laminate as a fiber-opening object formed by stacking a plurality of sheet-like fiber-processed products, the fiber processed product is rotated about an axis. The opening cylinder, a pair of feed rollers provided near the outer peripheral surface of the opening cylinder and conveying the fiber processed product laminate toward the outer peripheral surface of the opening cylinder, and the rotation direction of the opening cylinder of the feed roller And a pressing roller group having a plurality of pressing rollers provided along the outer periphery of the opening cylinder. With such a configuration, the fiber processed product laminate is pressed to the opening cylinder side without being lifted from the outer peripheral surface of the opening cylinder, and the distance and time that are pressed to the opening cylinder are sufficient. Secured. Further, the pressing roller group is provided such that the distance between the outer peripheral surface of each pressing roller and the outer peripheral surface of the opening cylinder is smaller as the pressing roller is farther from the feed roller. Thereby, even if the fiber processed product laminated body is opened and its thickness is gradually reduced, the fiber processed product laminate is successively pressed by the plurality of pressing rollers to the opening cylinder. As a result, the efficiency of fiber opening can be improved as compared with the prior art.
Further, when the diameter of the pressing roller is set smaller than the diameter of the feed roller, the pressing roller can be arranged closer to the feed roller. Thereby, the pressing position of the fiber processed product laminate by the pressing roller can be set closer to the feed roller. As a result, the fiber processed product laminate held by the feed roller can be pressed by the pressing roller before being pulled and torn by the opening cylinder.
Further, when a groove is formed along the axial direction on the outer peripheral surface of the pressing roller, a resistance force is more effective against a force pulled by the rotation of the opening cylinder than in the case where there is no groove. The fiber processed product laminate can be prevented from slipping through the pressing roller.
In addition, when the groove has a cross-sectional shape that is widened so that a hem is widened from the bottom wall of the groove toward the surface of the pressing roller, It is possible to prevent the spread spread product from being entangled with the pressing roller.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a schematic diagram which shows the fiber-spreading apparatus of the fiber-processed product laminated body which concerns on an Example. It is a partial expansion schematic diagram which shows the fiber-opening apparatus of the fiber processed product laminated body which concerns on an Example. It is a schematic diagram which shows the pressing roller which concerns on an Example. It is a schematic diagram which shows the conventional fiber opening apparatus.

  The items shown here are for illustrative purposes and exemplary embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

  The fiber-fabricated product laminate opening device (1) according to the present embodiment opens a fiber-processed product laminate that opens a fiber-processed product laminate (LF) formed by stacking a plurality of sheet-like fiber-processed products. The fiber device includes a fiber opening cylinder (11) described below, a pair of feed rollers (12), and a pressing roller group (13). Moreover, the fiber-fabricated product opening apparatus according to the present embodiment can further include, for example, a walker roller (14) and a stripper roller (15) disposed along the outer periphery of the opening cylinder.

  In addition, the magnitude | size, a shape, the number of layers, etc. in particular are not ask | required as long as the said fiber processed goods laminated body overlaps | stacks several sheet-like fiber processed goods. Moreover, the fiber processed product laminate may be a laminate of single types of fiber processed products, or may be a laminate of different types of fiber processed products. Examples of the processed fiber product include a nonwoven fabric, a woven fabric, and a knitted fabric.

  The fiber constituting the processed fiber product is not particularly limited. , Fibers of various plants such as esparto, survigrass, wheat, rice, bamboo, conifers (cedar, oak, etc.), hardwoods and cotton, polyolefin resins such as polypropylene, polyethylene, ethylene / propylene copolymers, polylactic acid, Aliphatic polyester resins such as polycaprolactone and polybutylene succinate, aromatic polyester resins such as polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate, polystyrene resins such as polystyrene, AS resin and ABS resin, polymethyl methacrylate Acrylic resins, polyamide resins, polycarbonate resins, fibers made using a thermoplastic resin such as polyacetal resin, fibers made with thermosetting resins. Only 1 type of these fibers may be used and 2 or more types may be used together.

  The “opening cylinder” is not particularly limited in its configuration, shape, size, material, and the like as long as it rotates around the axis. This opening cylinder can be provided with opening blades, such as a garnet wire, in the outer peripheral surface, for example.

  The “pair of feed rollers” is provided in the vicinity of the outer peripheral surface of the opening cylinder, and as long as the fiber processed product laminate is conveyed toward the outer peripheral surface of the opening cylinder, its configuration, shape, size, material Etc. are not particularly limited. As for the said feed roller, the space | interval C of the outer peripheral surface and the outer peripheral surface of the said opening cylinder can be about 0.1 to 0.3 times the thickness t of a fiber processed product laminated body, for example. .

  The “pressing roller group” is provided adjacent to the feed roller so as to be arranged in the rotational direction of the opening cylinder, and a plurality of pressing rollers (131, 132) provided along the outer periphery of the opening cylinder. As long as it has, there is no particular limitation on its configuration. The pressing roller group is arranged so that the distance between the outer peripheral surface of each pressing roller and the outer peripheral surface of the opening cylinder is smaller as the pressing roller is farther from the feed roller. The interval C1 corresponding to the pressing roller disposed closest to the feed roller can be, for example, about 0.45 to 0.6 times the interval C, and preferably 0.47 to 0.00. It can be about 55 times, more preferably about 0.5 times. The interval Cn corresponding to a certain pressing roller can be about 0.45 to 0.6 times the interval Cn-1 corresponding to the pressing roller adjacent to the pressing roller adjacent to the pressing roller. It may be about 0.47 to 0.55 times, more preferably about 0.5 times.

The structure, shape, size, material, number, etc. of the “pressing roller” are not particularly limited. For example, the pressing roller can have a diameter (D1, D2) set smaller than the diameter (D) of the feed roller (see, for example, FIG. 2).
In addition, the pressing roller may have a groove formed on the outer peripheral surface thereof along the axial direction. The size and number of the grooves are not particularly limited. Also, the cross-sectional shape of the groove is not particularly limited, but for example, it can be a shape that expands so that the skirt widens from the bottom wall of the groove toward the surface of the pressing roller (see, for example, FIG. 3 and the like). ).

  The “walker roller” normally rotates in a direction opposite to the rotation direction of the opening cylinder and rotates at a peripheral speed sufficiently slower than the peripheral speed of the opening cylinder. Thereby, the opening process can further be performed with respect to the opening process thing which passes between the opening cylinder and a walker roller. The structure, shape, size, material, number, etc. of the walker roller are not particularly limited. The walker roller can be provided with a spreader blade such as a garnet wire on its outer peripheral surface, for example, in the same manner as the spreader cylinder.

  The “stripper roller” is usually provided so as to be adjacent to the walker roller, and is provided so as to rotate in the same direction as the walker roller. Thereby, a stripper roller peels the fiber-opening processed material adhering to the outer peripheral surface of a walker roller. The stripper roller can have the same configuration as the walker roller.

  Hereinafter, the present invention will be specifically described with reference to the drawings. In this example, as a fiber processed product laminate, a fiber processed product laminate obtained by laminating a sheet-like non-woven fabric containing vegetable fibers such as kenaf serving as a base material and thermoplastic resin fibers serving as a binder. An LF is illustrated. The fiber processed product laminate LF is used as an interior material of a vehicle or the like by being molded and subjected to heat compression molding. The case where it applies is illustrated. Further, the thickness t of this fiber processed product laminate LF is about 10 mm.

(1) Structure of fiber-processed product laminate opening device As shown in FIG. 1, the fiber-processed product laminate opening device 1 (hereinafter also simply referred to as a fiber-opening device) according to this example is provided around the axis. A pair of feed rollers 12, which are provided in the vicinity of the outer peripheral surface of the opening cylinder 11 and convey the fiber processed product laminate LF toward the outer peripheral surface of the opening cylinder 11. A pressing roller having a plurality of (two in FIG. 1) pressing rollers 131 and 132 that are provided adjacent to each other so as to line up in the rotational direction of the 12 opening cylinders 11 and that are provided along the outer periphery of the opening cylinder 11. And a group 13. In this embodiment, the spreader 1 further includes a walker roller 14 and a stripper roller 15 disposed along the outer periphery of the spreader cylinder 11. These cylinders and rollers are covered with a casing 17, and a fiber opening process is performed in the casing 17.

  A wire (not shown) on which an infinite number of protrusions are formed on a surface called a garnet wire is wound around the opening cylinder 11. The fiber opening cylinder 11 rotates around its axis, thereby opening the fiber processed product laminate LF fed from the feed roller 12 so as to be scratched by the protrusion of the garnet wire. Moreover, the opening cylinder 11 conveys the opening process thing adhering to an outer peripheral surface in the rotation direction.

  The feed roller 12 is a pair of rollers provided in the vicinity of the outer peripheral surface of the opening cylinder 11. Further, the feed roller 12 sandwiches and feeds the fiber processed product laminate LF between the rollers, and presses it against the outer peripheral surface of the opening cylinder 11. In this embodiment, the distance C between the outer peripheral surface of the feed roller 12 and the outer peripheral surface of the opening cylinder 11 is about 0.1 to 0.3 times the thickness t of the fiber processed product laminate LF. It is set to ~ 3 mm.

  The opening cylinder 11 rotates so as to have a peripheral speed sufficiently higher than the feed speed of the feed roller 12. Further, the distance C between the outer peripheral surface of the opening cylinder 11 and the outer peripheral surface of the feed roller 12 is set to be smaller than the thickness of the fiber processed product laminate LF.

  As shown in FIG. 2, in the pressing roller group 13, the distances C <b> 1 and C <b> 2 between the outer peripheral surfaces of the pressing rollers 131 and 132 and the outer peripheral surface of the opening cylinder 11 are smaller as the pressing rollers are separated from the feed roller 12. It is provided as follows. Specifically, the interval C1 is set to 0.6 to 2 mm, which is approximately 2/3 times the interval C, and the interval C2 is 0.3 to 1 mm, which is approximately 1/3 times the interval C1. Is set to

  In this embodiment, the diameters D1 and D2 of the pressing rollers 131 and 132 are set smaller than the diameter D of the feed roller 12 as shown in FIG. In addition, as shown in FIG. 3, a plurality of grooves 13 </ b> A are formed on the outer peripheral surfaces of the pressing rollers 131 and 132 along the axial direction. Each groove 13 </ b> A has a shape that is widened so that the skirt is widened from the bottom wall toward the surface of the pressing rollers 131 and 132.

  The walker roller 14 is a roller in which a garnet wire (not shown) is wound around the outer peripheral surface thereof in the same manner as the fiber opening cylinder 11. The walker roller 14 rotates in a direction opposite to the rotation direction of the opening cylinder 11 and rotates at a peripheral speed sufficiently slower than the peripheral speed of the opening cylinder 11. Thereby, the opening apparatus 1 passes the opening process thing conveyed by the opening cylinder 11 between the opening cylinder 11 and the walker roller 14, and further performs the opening process with respect to the opening process object. Apply.

  The stripper roller 15 is a roller in which a garnet wire (not shown) is wound around the outer peripheral surface thereof, similarly to the opening cylinder 11. The stripper roller 15 is provided so as to be adjacent to the walker roller 14, and is provided so as to rotate in the same direction as the walker roller 14. The stripper roller 15 peels off the spread processed product attached to the outer peripheral surface of the walker roller 14.

  In the present embodiment, as shown in FIG. 1, the opening device 1 is provided with a conveying means 16 on the upstream side of the feed roller 12. The conveying means 16 is a belt conveyor that supplies the processed fiber product laminate LF to the feed roller 12.

(2) Operation of fiber-processed product laminate opening device Next, the operation of the fiber-processed product laminate opening device configured as described above will be described.
First, the fiber processed product laminate LF is placed on the conveying means 16 and conveyed, and supplied to the feed roller 12. The feed roller 12 sandwiches the fiber processed product laminate LF and feeds it so as to press against the outer peripheral surface of the opening cylinder 11. The opening cylinder 11 rotates around its axis, and the pressed fiber processed product laminate LF is scratched by the protrusions of the garnet wire to be opened. At this time, the fiber processed product laminate LF is transported along the outer periphery of the opening cylinder 11 with its tip side pulled in the rotation direction of the opening cylinder 11 while being sandwiched between the feed rollers 12. Then, the fiber processed product laminate LF is sequentially pressed toward the opening cylinder 11 by the pressing rollers 131 and 132 of the pressing roller group 13.

  Here, as described above, in the pressing roller group 13, the distances C1 and C2 between the outer peripheral surfaces of the pressing rollers 131 and 132 and the outer peripheral surface of the opening cylinder 11 are smaller as the pressing rollers are separated from the feed roller 12. It is provided to become. As a result, the fiber processed product laminate LF is opened by being scratched by the opening cylinder 11 so that the thickness gradually decreases as it passes through the pressing roller group 13. At this time, the pressing rollers 131 and 132 securely press the fiber processed product laminate LF by the action of the groove 13A formed on the outer peripheral surface thereof. In addition, the cross-sectional shape of the groove 13A is a shape that is expanded so that the hem is expanded from the bottom wall of the groove 13A toward the surface direction of the pressing rollers 131 and 132, and the spread processing product is the pressing roller 131. , 132 is not entangled.

  Thereafter, the spread processed product that has been spread is attached to the surface of the spread cylinder 11 and conveyed, and is further opened by passing between it and the walker roller 14. Further, the spread processed product attached to the walker roller 14 is peeled off by the stripper roller 15. The spread processed product opened in this way is discharged from the discharge port 17A of the casing 17.

(3) Effect of Example As described above, according to the fiber-fabricated product opening apparatus 1 of this example, a fiber-processed product laminate as a spread object formed by stacking a plurality of sheet-like fiber processed products. When opening the LF, the opening cylinder 11 that rotates around the axis and the outer periphery of the opening cylinder 11 are provided near the outer peripheral surface of the opening cylinder 11, and the processed fiber product LF is conveyed toward the outer peripheral surface of the opening cylinder 11. A pair of feed rollers 12 and a plurality of pressing rollers 131 and 132 provided along the outer periphery of the opening cylinder 11 and provided adjacent to the rotation direction of the opening cylinder 11 of the opening roller 11. A pressing roller group 13.

  With such a configuration, the fiber processed product laminate LF is pressed against the opening cylinder side without being lifted from the outer peripheral surface of the opening cylinder 11 and is pressed against the opening cylinder 11. And enough time is secured. The pressure roller group 13 is provided such that the distance between the outer circumferential surface of each of the pressure rollers 131 and 132 and the outer circumferential surface of the fiber opening cylinder 11 is smaller as the pressure roller is further away from the feed roller 12. With such a configuration, even if the fiber processed product laminate LF is opened and its thickness gradually decreases, the fiber processed product laminate LF is suitably pressed by the plurality of pressing rollers 131 and 132 sequentially onto the opening cylinder 11. As a result, the efficiency of fiber opening can be improved as compared with the prior art.

  Further, in this embodiment, since the diameters D1 and D2 of the pressing rollers 131 and 132 are set smaller than the diameter D of the feed roller 12, the pressing rollers 131 and 132 can be arranged closer to the feed roller 12. it can. Thereby, the pressing position of the fiber processed product laminate LF by the pressing rollers 131 and 132 can be set closer to the feed roller 12. As a result, the fiber processed product laminate LF held by the feed roller 12 can be pressed by the pressing roller group 13 before being pulled and torn by the opening cylinder 11.

  Furthermore, in this embodiment, since the grooves 13A are formed along the axial direction on the outer peripheral surfaces of the pressing rollers 131 and 132, the force pulled by the rotation of the opening cylinder 11 compared to the case where there is no groove. Therefore, it is possible to prevent the fiber processed product laminate LF from slipping through the pressing rollers 131 and 132.

  Further, in the present embodiment, the groove 13A has a shape in which the cross-sectional shape is expanded so that the hem widens from the bottom wall of the groove 13A toward the surface direction of the pressing rollers 131 and 132. It is possible to prevent the spread processed product obtained by opening the fiber processed product laminate LF from being entangled with the pressing rollers 131 and 132.

  Furthermore, in this embodiment, the spread processed product that has passed through the pressing roller group 13 is further passed between the spread cylinder 11 and the walker roller 14 disposed along the outer periphery of the spread cylinder 11. Since the opening is performed, the opening efficiency can be further increased.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the above-described embodiment, the pressing roller group 13 including the two pressing rollers 131 and 132 is illustrated. However, the present invention is not limited to this. For example, a pressing roller group including three or more pressing rollers may be used.

  The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosure herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope.

  The present invention is not limited to the embodiments described in detail above, and various modifications or changes can be made within the scope of the claims of the present invention.

  It is widely used as a technique for opening a fiber processed product laminate formed by stacking a plurality of sheet-like fiber processed products. In particular, it is suitably used as a technique for opening a laminate of sheet-like non-woven fabric containing plant fibers such as kenaf serving as a base material and thermoplastic resin fibers serving as a binder.

  DESCRIPTION OF SYMBOLS 1; Opening apparatus, 11; Opening cylinder, 12; Feed roller, 13; Press roller group, 131, 132; Press roller, 13A; Groove, 14; Walker roller, 15; Stripper roller, 16; ; Casing, 17A; discharge port, C; distance between outer peripheral surface of feed roller and outer peripheral surface of opening cylinder, C1, C2 (Cn); interval between outer peripheral surface of pressing roller and outer peripheral surface of opening cylinder, D ; Diameter of feed roller, D1, D2; Diameter of pressing roller, LF; Textile processed product laminate.

Claims (4)

A fiber processed product laminate opening device for opening a fiber processed product laminate formed by stacking a plurality of sheet-like fiber processed products,
An opening cylinder that rotates around an axis;
A pair of feed rollers that are provided in the vicinity of the outer peripheral surface of the opening cylinder, and convey the fiber processed product laminate toward the outer peripheral surface of the opening cylinder;
A pressing roller group having a plurality of pressing rollers provided adjacent to the rotation direction of the opening cylinder of the opening roller and provided along the outer periphery of the opening cylinder;
The pressing roller group is provided such that the interval between the outer peripheral surface of each pressing roller and the outer peripheral surface of the opening cylinder is smaller as the pressing roller is farther from the feed roller. Opening device for laminated fabric products.   The fiber processed product laminate opening device according to claim 1, wherein a diameter of the pressing roller is set smaller than a diameter of the feed roller.   The fiber-fabricated product spreader according to claim 1 or 2, wherein a groove is formed along an axial direction on an outer peripheral surface of the pressing roller.   4. The fiber processed product laminate according to claim 3, wherein the groove has a cross-sectional shape that is widened so that a skirt spreads from a bottom wall of the groove toward the surface of the pressing roller. Opening device.

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