JP2012241305A - Method of opening textile processed product laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of opening a textile processed product laminate, which can improve the efficiency of opening the same.SOLUTION: The method of opening a textile processed product laminate which opens a textile processed product laminate LF constituted by overlaying a plurality of sheet-like textile processed products includes: a splitting process for splitting the textile processed product laminate for each layer; and an opening process for opening the respective layers F1 and F2 of the split textile processed product laminate. In the splitting process, the textile processed product laminate can be split by cutting with a blade along a boundary of the layers of the textile processed product laminate. Furthermore, in the splitting process, the textile processed product laminate before being split can be compressed in a laminating direction, or the respective layers of the split textile processed product laminate can be pulled while the respective layers are held by rollers.

Description

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

  Conventionally, it is known that fiber processed products such as nonwoven fabrics, woven fabrics, knitted fabrics, or their end materials are opened and reused. As a method for opening a fiber processed product, for example, a method using a main cylinder that rotates around an axis and a plurality of rollers such as worker rollers and stripper rollers arranged along the outer periphery of the main cylinder is known. It has been. In such a method, the fiber processed product passes between the rotating main cylinder and each roller, and is finely loosened and opened in the process (for example, see Patent Document 1). ).

JP 2002-138328 A

  However, the method disclosed in Patent Document 1 has a problem in that an unopened lump having an insufficiently opened state is generated. In particular, when a fiber processed product laminate formed by stacking a plurality of sheet-like fiber processed products is opened, the occurrence of unopened lumps was remarkable. For this reason, the development of a method for improving the opening efficiency has been desired.

  In view of the above problems, an object of the present invention is to provide a fiber-opening method for a fiber-processed product laminate that can improve the efficiency of fiber-opening than before.

In order to solve the above-mentioned problems, the invention described in claim 1 is a fiber-processed product laminate opening method for opening a fiber-processed product laminate formed by stacking a plurality of sheet-like fiber processed products. And
A dividing step of dividing the fiber processed article laminate into a plurality of layers from the boundary of the layers;
And a fiber opening step of opening the divided fiber processed product laminate.

  Invention of Claim 2 makes it a summary to divide | segment by putting the blade in the boundary of the layer of the said fiber processed article laminated body in the said division | segmentation process in Claim 1.

  Invention of Claim 3 makes it a summary to compress the said fiber processed product laminated body before a division | segmentation in the lamination direction in Claim 2, in the said division | segmentation process.

  The gist of a fourth aspect of the present invention is that, in the second or third aspect, in the dividing step, each layer of the divided fiber processed product laminate is pulled while being held by a roller.

According to the method for opening a fiber processed product laminate of the present invention, when opening a fiber processed product laminate formed by stacking a plurality of sheet-like fiber processed products, a plurality of fiber processed product laminates are separated from the layer boundary. A splitting step for splitting into two and a fiber opening step for opening the split fiber processed product laminate. Thereby, since the fiber-spreading process can be performed for each of the divided layers having a lower basis weight than the original fiber processed product laminate, it becomes easy to make a single fiber. As a result, the opening efficiency can be improved. In addition, since the fiber-spreading process is performed for each of the divided layers having a lower basis weight than the original fiber processed product laminate, even if an unopened lump that remains without being opened is generated, The thickness can be made smaller than before.
Moreover, in a division | segmentation process, when dividing | segmenting by putting a blade in the boundary of the layer of a fiber processed product laminated body, a fiber processed product laminated body can be divided | segmented easily.
Further, in the dividing step, when the fiber processed product laminate before the division is compressed in the stacking direction, the fiber processed product laminate is densified by compression so that the blade can easily enter, so that it is more easily divided. be able to.
Further, in the dividing step, when each layer of the divided fiber processed product laminate is pulled while being held between rollers, the division is promoted by pulling, and the layers can be more easily divided.

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 an example of the opening apparatus of the fiber processed product laminated body which opens the fiber processed product laminated body according to the fiber opening method of the fiber processed product laminated body which concerns on this invention. It is a partial expansion schematic diagram which shows an example of the opening apparatus of the fiber processed product laminated body which opens the fiber processed product laminated body according to the fiber opening method of the fiber processed product laminated body which concerns on this invention. It is a partial expansion schematic diagram which shows an example of the opening apparatus of the fiber processed product laminated body which opens the fiber processed product laminated body according to the fiber opening method of the fiber processed product laminated body which concerns on this invention.

  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-processed product laminate opening method according to the present embodiment is a fiber-processed product laminate opening method for opening a fiber-processed product laminate (LF) formed by stacking a plurality of sheet-like fiber processed products. Therefore, it includes a dividing step and a fiber opening step described below.
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 the same type of fiber processed product, or may be a laminate of different types of fiber processed products. Examples of the processed fiber product include non-woven fabrics, woven fabrics, and knitted fabrics.

  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 “division step” is not particularly limited as long as it is a step of dividing the fiber processed product laminate into a plurality of layers from the layer boundary. In this dividing step, for example, a form (for example, see FIG. 2) in which a blade (divided blade 12) is inserted at the boundary between the layers of the fiber processed product laminate, or each layer of the fiber processed product laminate is gripped. Then, it can be a form that is divided so as to be peeled off.

  Moreover, in the said division | segmentation process, the fiber processed product laminated body before a division | segmentation can be compressed in a lamination direction, for example. Although the form which compresses the fiber processed product laminated body before a division | segmentation is not ask | required in particular, For example, let the space | interval pass between a pair of rollers (compression roller 11) set smaller than the thickness of a fiber processed product laminated body. Examples include a form of compression (for example, see FIG. 2 and the like), a form of compression by pressing with a fluid cylinder or the like.

  Moreover, in the said division | segmentation process, it can be made to pull, for example, hold | maintaining each layer of the divided textile processed product laminated body with a roller (tensile roller 13), respectively (for example, refer FIG. 2 etc.). In this case, for example, a protrusion is provided on the outer peripheral surface of the roller, and the fiber processed product laminate divided by the protrusion can be hooked and pulled.

  The “opening step” is not particularly limited in form as long as the fiber processed product laminate (F1, F2) is opened. In the opening process, for example, an opening blade such as a garnet wire is provided on the outer peripheral surface, and the divided fiber processed product laminate is pressed from one end face side to the opening cylinder (22) that rotates around the axis. It can be in the form of opening (see, for example, FIG. 3). As a form of pressing the fiber processed product laminate divided into the opening cylinder, for example, the fiber processed product laminate is divided by a pair of rollers (feed rollers 21) provided in the vicinity of the outer peripheral surface of the opening cylinder. The layer may be pressed so as to be sandwiched between rollers and sent out. In this case, the distance between the outer peripheral surface of the roller and the outer peripheral surface of the opening cylinder can be set smaller than the thickness of the divided layers.

Further, when the above opening cylinder is used, the opening processed product that has undergone the opening process is placed between the opening cylinder and the auxiliary roller (walker roller 23) disposed along the outer periphery of the opening cylinder. You may make it further include the auxiliary | assistant opening process which passes and further opens.
The auxiliary roller normally rotates in a direction opposite to the rotation direction of the opening cylinder and rotates at a speed sufficiently slower than the circumferential speed of the opening cylinder (see, for example, FIG. 3). The auxiliary roller can be, for example, a roller provided with a spreading blade such as a garnet wire on the outer peripheral surface in the same manner as the opening cylinder.
Furthermore, in the auxiliary opening step, for example, the spread processed product attached to the outer peripheral surface of the auxiliary roller can be peeled off by the stripper roller (24). The stripper roller is provided, for example, so as to be adjacent to the auxiliary roller, and can be provided so as to rotate in the same direction as the auxiliary roller (see, for example, FIG. 3).

  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.

(1) Configuration of fiber-processed product laminate opening apparatus First, an example of an apparatus for opening a fiber-processed product laminate according to the fiber-processed product laminate opening method according to the present invention will be described. As shown in FIG. 1, the fiber-processed product laminate opening device 1 according to the present embodiment (hereinafter, also simply referred to as the fiber-opening device) is divided into a plurality of fiber-processed product laminates LF from the layer boundary. Means 10 and fiber opening means 20 for opening the divided fiber processed product laminates F1 and F2 are provided.

As shown in FIG. 2, the dividing means 10 includes a compression roller 11, a dividing blade 12, and a tension roller 13.
The compression roller 11 is a pair of upper and lower rollers that rotate in directions opposite to each other. The compression roller 11 compresses the fiber processed product laminate LF in the stacking direction by passing the fiber processed product laminate LF between the rollers.

  The split blade 12 is provided on the side of the compression roller 11 in the feeding direction of the fiber processed product laminate LF. The dividing blade 12 divides the fiber processed product laminate LF into F1 and F2 by entering the boundary between the layers of the fiber processed product laminate LF fed from the compression roller 11.

  A pair of tension rollers 13 is provided above and below the split blade 12. The pulling roller 13 pulls and feeds the fiber processed product laminates F1 and F2 divided by the dividing blade 12. Further, the tension roller 13 is provided with a protrusion 13A on the outer periphery of each roller, and the layers F1 and F2 divided by the protrusion 13A are respectively pulled and pulled.

As shown in FIG. 3, the opening means 20 includes a feed roller 21 and an opening cylinder 22.
The feed roller 21 is a pair of rollers provided in the vicinity of the outer peripheral surface of the opening cylinder 22. In addition, the feed roller 21 feeds the divided layers F1 and F2 of the fiber processed product laminate LF between the rollers by the dividing means 10, and presses them against the outer peripheral surface of the opening cylinder 22.

  A wire (not shown) in which a plurality of protrusions are formed on a surface called a garnet wire is wound around the outer opening surface of the opening cylinder 22. The fiber opening cylinder 22 rotates around its axis, thereby opening the divided fiber processed product laminates F1 and F2 fed from the feed roller 21 so as to be scratched by the protrusions of the garnet wire. Moreover, the opening cylinder 22 conveys the opening process thing adhering to an outer peripheral surface in the rotation direction.

  The opening cylinder 22 rotates so that the peripheral speed is sufficiently higher than the feed speed of the feed roller 21. Moreover, the space | interval of the outer peripheral surface of the opening cylinder 22 and the outer peripheral surface of the feed roller 21 is set small compared with the thickness of the layers F1 and F2.

  In the present embodiment, the opening means 20 further includes a walker roller 23 and a stripper roller 24 disposed along the outer periphery of the opening cylinder 22 as shown in FIG.

  The walker roller 23 is a roller in which a garnet wire (not shown) is wound around the outer peripheral surface thereof, similarly to the opening cylinder 22. The walker roller 23 rotates in a direction opposite to the rotational direction of the opening cylinder 22 and rotates at a peripheral speed sufficiently slower than the peripheral speed of the opening cylinder 22. As a result, the opening means 20 passes the opening processed product conveyed by the opening cylinder 22 between the opening cylinder 22 and the walker roller 23, and further performs the opening processing on the opening processed product. Apply.

  The stripper roller 24 peels off the spread processed product attached to the outer peripheral surface of the walker roller 23. The stripper roller 24 is provided so as to be adjacent to the walker roller 23, and is provided so as to rotate in the same direction as the walker roller 23.

In the present embodiment, as shown in FIG. 1, the opening device 1 is provided with conveying units 31, 32, 33, and 34 on the upstream side and the downstream side of the dividing unit 10 and the upstream side of the opening unit 20. ing. The conveying means 31 is a belt conveyor that supplies the fiber processed product laminate LF to the dividing means 10. The conveying means 32 and 33 are belt conveyors that convey the fiber processed product laminates F1 and F2 divided by the dividing means 10 respectively downstream. The conveying means 34 is a belt conveyor that supplies the fiber processed product laminates F <b> 1 and F <b> 2 divided by the conveying means 32 and 33 to the fiber opening means 20. By these conveying means 31 to 34, the fiber opening device 1 can continuously perform the division and the fiber opening of the fiber processed product laminate LF.
In addition, a collection unit 40 that collects the spread processing product is provided on the downstream side of the opening unit 20.

(2) Fiber opening method for fiber processed product laminate Next, a fiber opening method using the fiber processed product laminate opening device 1 configured as described above will be described.
(2-1) Dividing Step First, the fiber processed product laminate LF is placed on the conveying means 31 and conveyed, and supplied to the dividing means 10. In the dividing means 10, first, the fiber processed product laminate LF is compressed in the stacking direction by the compression roller 11. Thereby, the density of the fiber processed product laminate LF is increased. Then, the dividing blade 12 enters the boundary between the layers of the fiber processed product laminate LF fed from the compression roller 11, and is divided into the layer F1 and the layer F2. At this time, since the fiber processed product laminate LF is compressed to increase the density, the blade is easier to enter than the uncompressed fiber processed product laminate LF so that it can be easily divided. It has become.

  Next, the fiber processed product laminates F <b> 1 and F <b> 2 divided by the dividing blade 12 are pulled by the tension roller 13. By pulling the fiber processed product laminates F1 and F2 divided by the tension roller 13, the division of the fiber processed product laminate LF by the dividing blade 12 is promoted. Further, the tension roller 13 has protrusions 13A formed on the outer periphery thereof, and the driving of the roller is sufficiently transmitted to the divided fiber processed product laminates F1 and F2. The divided fiber processed product laminates F1 and F2 are respectively conveyed by conveying means 32 and 33, and supplied to the fiber opening means 20 via the conveying means 34.

(2-2) Opening Step In the opening means 20, first, the layers F <b> 1 and F <b> 2 divided by the feed roller 21 are sandwiched and sent out to be pressed against the outer peripheral surface of the opening cylinder 22. The opening cylinder 22 rotates around its axis, and the pressed layers F1 and F2 are scratched by the protrusions of the garnet wire and opened. At this time, the divided layers F1 and F2 are easily made into single fibers because the basis weight is smaller than that of the fiber processed product laminate LF before being divided.

(2-3) Auxiliary opening process Thereafter, the spread-opening processed product is attached to the surface of the opening cylinder 22 and conveyed, and is further opened by passing between it and the walker roller 23. The Further, the spread processed product attached to the walker roller 23 is peeled off by the stripper roller 24.
Through these steps, the spread product is collected by the collecting means 40.

(3) Effect of Example As described above, according to the fiber-opening method of the fiber processed product laminate of the present example, the dividing step of dividing the fiber processed product laminate LF into a plurality of layers from the layer boundary, and the divided fiber processing A product opening process for opening the product laminates F1 and F2. Thereby, since the fiber-spreading process can be performed for each of the divided layers F1 and F2 that have a lower basis weight than the fiber processed product laminate LF before division, it becomes easy to make a single fiber. As a result, the opening efficiency can be improved. In addition, since the fiber-processed product laminates F1 and F2 that have been divided are subjected to the fiber-spreading process, even if unopened lumps that remain without being opened are generated, the size thereof is made smaller than before. can do.

  In the present embodiment, in the dividing step, the fiber processed product laminate LF can be easily divided because the split blade 12 is inserted at the boundary between the layers of the fiber processed product laminate LF. .

  Furthermore, in this example, since the fiber processed product laminate LF before splitting was compressed in the stacking direction, the fiber processed product laminate was densified by the compression, making it easier for the blade to enter and easier. Can be divided into

  Further, in this embodiment, since the divided fiber processed product laminates F1 and F2 are pulled while being held by the tension roller 13, the splitting is promoted by the pulling and can be more easily divided. Moreover, since it was made to pull with the tension | pulling roller 13 in which protrusion 13A was formed in the outer periphery, the drive of the tension | pulling roller 13 can fully be transmitted and the fiber-processed product laminated body LF can be more reliably divided | segmented.

  Further, in the present embodiment, the spread processed product that has undergone the opening process is further opened by passing between the opening cylinder 22 and the walker roller 23 arranged along the outer periphery of the opening cylinder. Since the auxiliary opening process is further included, 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 said Example, although the fiber processed product laminated body LF formed by laminating | stacking two sheet-like fiber processed products was illustrated as a fiber processed product laminated body to open, it is not limited to this, For example, 3 It may be a fiber processed product laminate obtained by laminating two or more fiber processed products. In this case, the fiber processed product laminate may be divided into the same number as the number of layers, or a single layer and a plurality of layers, a single layer and a plurality of layers and another single layer, a plurality of layers and another plurality of layers, etc. Thus, you may make it divide | segment into the number below the number of layers of a fiber-processed product laminated body.

  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, 10; Dividing means, 11; Compression roller, 12; Dividing blade, 13; Tensile roller, 13A; Protrusion, 20; Opening means, 21; Feed roller, 22; Corolla, 24; Stripper roller, 31, 32, 33, 34; Conveying means, 40; Collecting means, F1, F2; Divided fiber processed product laminate, LF; Fiber processed product laminate.

Claims (4)

A fiber-processed product laminate opening method for opening a fiber-processed product laminate formed by stacking a plurality of sheet-like fiber processed products,
A dividing step of dividing the fiber processed article laminate into a plurality of layers from the boundary of the layers;
A fiber-opening method for opening the fiber-processed product laminate, wherein the fiber-processed product laminate is opened.   The method for opening a fiber processed product laminate according to claim 1, wherein in the dividing step, the fiber processed product laminate is divided by inserting a blade at a boundary between layers of the fiber processed product laminate.   The fiber-fabricated product laminate opening method according to claim 2, wherein in the dividing step, the fiber-processed product laminate before division is compressed in the stacking direction.   4. The fiber-processed product laminate opening method according to claim 2, wherein, in the dividing step, each layer of the divided fiber-processed product laminate is pulled while being held by a roller.

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