JP2004034062A - Compression equipment for article for packing bale and compression method for the same - Google Patents

Compression equipment for article for packing bale and compression method for the same Download PDF

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Publication number
JP2004034062A
JP2004034062A JP2002192486A JP2002192486A JP2004034062A JP 2004034062 A JP2004034062 A JP 2004034062A JP 2002192486 A JP2002192486 A JP 2002192486A JP 2002192486 A JP2002192486 A JP 2002192486A JP 2004034062 A JP2004034062 A JP 2004034062A
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JP
Japan
Prior art keywords
compression
press
press box
article
packing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002192486A
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Japanese (ja)
Inventor
Yoshitaka Doi
Motoo Nomura
土居 義孝
能村 素郎
Original Assignee
Mitsubishi Rayon Co Ltd
三菱レイヨン株式会社
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Priority to JP2002192486A priority Critical patent/JP2004034062A/en
Publication of JP2004034062A publication Critical patent/JP2004034062A/en
Application status is Pending legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To provide compression equipment which stabilizes the compression form of articles formed by short cutting fiber masses, fiber tows, pulp, or paper etc. <P>SOLUTION: Inner walls of a press box 3 of the compression equipment 1 have tapered surfaces having a tapered angle of ≤2.0° narrowing gradually toward the compression direction of press tools 4 and 5 and coating layers attaining ≤0.27 in the coefficient of static friction to the short fiber masses. Partially large friction forces are no more caused between the short fiber masses and the inner walls of the press box, by which packed bales having the stable compression form are obtained. The lower parts of the short fiber masses are compressed in the form of the masses narrowing gradually in the compression direction of the press tools and therefore even if the lower parts of the compressed short fiber masses are expanded by the repulsion (expansion force) of the short fiber masses after packing, the packing form can be so maintained that all the surfaces of the packed bales cross perpendicularly with each other. Even if the packed bales are stacked on each other in a plurality of steps, the bales can be rationally stacked on each other without inclination upward. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vale packaging article compression apparatus and a compression method for compressing an article obtained by cutting a fiber lump, fiber tow, pulp, paper or the like into a desired packaging form, and particularly to a good packaging veil. The present invention relates to a bale packaging article compression apparatus and a compression method thereof that can be compression-molded stably.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, when packing an article obtained by cutting a fiber lump, fiber tow, pulp or paper into a required size by bale packaging, first, the cut article is put into a compression device. In this compression apparatus, a compression plate (press jig) that can move up and down is provided on one end surface of a rectangular parallelepiped press box that opens up and down, and a pressure receiving body (a pressure plate) facing the compression plate is provided on the other end surface of the press box. Press jig). Attaching the upper wrapping sheet to the compression plate, attaching the lower wrapping sheet to the pressure receiving body and moving the compression plate along the inner wall of the press box, the article put into the press box, It is compressed between a compression plate and the pressure receiving body to form a substantially rectangular parallelepiped package. After the press box is retracted to the outside from between the pair of press jigs, the upper and lower wrapping sheets wrap the compressed article between the pair of press jigs, and further press the pair of press jigs. The wrapping sheet is inserted into gaps for a plurality of tying bands provided in the device, and the outside of the packaging sheet is tied with the tying band to perform packing and packing.
[0003]
The size of the upper and lower surfaces facing the pair of press jigs in the hexahedron of such a packing bale is determined by the size of the inner peripheral surface of the press box. The size of the remaining four surfaces is determined by the size of the inner peripheral surface of the press box and the height corresponding to the compression ratio.
[0004]
By the way, in order to reduce the size of the packing bale as much as possible in order to improve transportation and transportation efficiency, the compression rate of the article is increased, and the form of the packing bale is changed over time by the repulsive force (expansion force) of the article. It is important to pack so that it does not change. In order to pack the articles, usually, the articles are bound with a required number of binding bands so as to surround the compression direction of the pair of press jigs, and the compressed state of the articles is maintained. If necessary, a required number of binding bands are also bound so as to cross these binding bands and cross in a cross shape.
[0005]
When such packing bales are stored in a warehouse or the like, usually, the packing bales are stored in a state of being stacked in rows and columns with the largest area of the packing bales as an installation surface in order to store the packing bales in a stable posture. However, since the repulsive force (expansion force) of the article acts extremely on the upper and lower surfaces of the packing bale (the surface facing the pair of press jigs) determined by the dimensions of the inner peripheral surface of the press box. The upper and lower surfaces between a plurality of binding bands tightened so as to surround the upper and lower surfaces of the packing bale are bulged outward, and the upper and lower surfaces of the packing bale are uneven due to the binding band gap of the pair of press jigs. In a state. Therefore, when the upper surface or the lower surface of the packing bale is used as an installation surface, the packing bale is installed in an unstable posture, and thus is determined exclusively by the size of the inner peripheral surface of the press box and the height corresponding to the compression ratio. The side surface (the surface not facing the press jig) of the packing bale to be used is used as the installation surface of the article.
[0006]
On the other hand, at the time of transportation, the plurality of packing bales are simultaneously transported while sandwiching the side surfaces of the plurality of packing bales arranged in a row in storage. FIG. 7 shows a conventional transportation example of a packing bale. FIG. 7 shows a view from the upper surface of the packing veil (the surface facing the press jig consisting of the long side 8a and the short side 8b of the packing bale 8 shown in FIG. 2). In the figure, the packing bale 8 is set on a rectangular surface (a surface formed by the long side 8a and the short side 8c of the packing bale 8 shown in FIG. 2) which does not face a press jig (not shown). The transport is performed by simultaneously sandwiching the left and right side surfaces of the two packing bales 8, 8 arranged along the longitudinal direction of the packing bale by the platter 9.
[0007]
[Problems to be solved by the invention]
When a plurality of packing bales 8 are simultaneously held by the platter 9 of the transporter in transporting the above-mentioned packing bale, the interval between the holding of the platters 9 is "long side of the packing bale" as shown in FIG. 8a x number of packing bales ". For this reason, the number of bales that can be transported at one time using the platter 9 of the transporter having a predetermined interval is limited, and there is a problem that the transport efficiency is significantly reduced.
[0008]
In order to solve such a problem, for example, when a plurality of packing bales 8 are transported by using a rectangular side having one long side 8a as shown in FIG. The interval at which the bale is sandwiched is “the short side of the packing bale 8b × the number of packing bales”, and the number of packing bales that can be transported at one time by the platter 9 of the transporter can be increased as compared with the transport example shown in FIG. Therefore, the transportation efficiency of the packing bale 8 can be improved.
[0009]
However, when an article such as the fiber is compressed by a conventional compression device having a pair of press jigs arranged opposite to each other with a press box therebetween as described above, the compressed article and the press are compressed. A large frictional force occurs locally with the inner wall of the box. For this reason, a state occurs in which the compressive force does not sufficiently act on the lower portion of the press box due to the frictional force generated when the article is compressed. In this state, when the packing operation is performed as described above, the articles are packed while the density distribution of the articles in the packing bale is not uniform, and the lower side of the packing bale is wider than the upper side. It changes over time to a substantially truncated quadrangular cone shape.
[0010]
For this reason, in a state in which the sides of a plurality of packing bales are arranged in a horizontal line, if these packing bales are simultaneously sandwiched by the platters of the transporter and then transported at once, the gap between the sides of the plurality of packing bales is reduced. There is a problem that it is not possible to sandwich the packages in parallel, and that a plurality of packing bales are bent outward from between the platters, resulting in an extremely unstable posture.
[0011]
Further, the packing bale compressed by the conventional compression device has a shape in which the lower surface side is wider than the upper surface side as described above, and the side surface of the packing bale is inclined, so that the side surface of the packing bale is formed in a plurality of stages. Even if they were stacked, they could not be stacked vertically perpendicular to the installation surface. For this reason, there has been a problem that the inclination of the packing bale becomes gradually unstable and the loading posture of the packing bale becomes very unstable.
[0012]
Therefore, it is not easy to store, transport, and transport the packing bale itself, and at the same time, it is necessary to ensure safety, which is extremely troublesome. As a result, considerable time and meticulous attention was required to store, transport and transport the packing bale. For these reasons, a form of a packing bale that can be transported in a more efficient transport form has been demanded.
[0013]
The present invention has been made to solve such a conventional problem, and stabilizes the compressed form of an article obtained by cutting a fiber lump, fiber tow, pulp, paper, or the like, and stores, transports, or transports a packing bale. The object of the present invention is to provide a bale packaging article compression apparatus capable of efficiently performing a bale packaging article compression which can be stably formed into a good article bale form when an article such as short fiber is compressed. The aim is to provide a method.
[0014]
Means for Solving the Problems and Functions and Effects
The invention according to claim 1 includes a cylindrical press box having an inner wall on a side, and a pair of press jigs arranged to face each other with the press box interposed therebetween, and put into the press box. A bale packaging article compression apparatus for compressing an article such as a staple fiber between the pair of press jigs and forming the article into a packaging form, wherein an inner wall of the press box has a compression direction of the press jig. A bale packaging article compression apparatus, characterized in that the compression apparatus has a tapered surface that gradually narrows toward.
[0015]
Even in the bale packaging article compression apparatus according to the first aspect of the present invention, at least one of a pair of press jigs can advance and retreat in a cylindrical press box having an inner wall on the side as in the related art. It is arranged in. After an article (hereinafter, referred to as a short fiber lump) obtained by cutting a fiber lump, fiber tow, pulp, paper or the like into a short distance between the pair of press jigs, a short fiber lump is desired between the pair of press jigs. Compress to shape. The compressed short fiber mass is covered with a wrapping material and further tied with a tying material.
[0016]
In the compression device of the present invention, the inner wall of the press box has a tapered surface that gradually narrows in the compression direction of the press jig. That is, a space is provided in the inner wall of the press box of the compression device of the present invention for compressing the short fiber mass into a form that is gradually narrowed in the compression direction of the press jig.
[0017]
In the present invention, for example, since the lower portion of the short fiber mass is compressed in a form gradually narrowing in the compression direction of the press jig, after packing, the lower portion of the compressed short fiber mass repels the short fiber mass. Even if the packing bale is expanded by a force (expansion force), the packing form can be maintained such that all surfaces of the packing bale cross each other perpendicularly, and a stable packing bale can be obtained. For this reason, it becomes possible to select a surface other than the surface of the packing bale facing the press jig as the installation surface, and even if the packing bale is stacked in a plurality of stages, it can be reasonably stacked without tilting upward. And safety during storage, transportation and transportation of the packing bale is ensured. As a result, the storage, transportation and transportation work of the packaging bale can be easily performed, and a plurality of packaging bale can be stably installed, and the number of storage, transportation and transportation steps of the packaging bale can be significantly reduced. be able to.
[0018]
The installation position and the inclination angle (taper angle) of the tapered surface may be set so as not to contact the press jig, and the installation position and the taper angle of the tapered surface are not particularly limited. It is particularly useful that the tapered surface is formed in the article height region at the end of the compression in the press box as in the invention according to claim 2, and the above-described operation and effect are surely exhibited.
Further, as in the invention according to claim 3, it is preferable that the angle of the tapered surface is 2.0 ° or less. More preferably, a taper angle of 0.5 ° or more and 2.0 ° or less is particularly useful, and a desired packing form can be stably and effectively formed.
[0019]
The invention according to claim 4 is provided with a cylindrical press box having an inner wall on the side, and a pair of press jigs arranged to face each other with the press box interposed therebetween, and is put into the press box. A bale packaging article compression apparatus for compressing an article such as short fibers between the pair of press jigs to form the article into a packing form, wherein the inner wall of the press box has a coefficient of static friction with the article of 0. 27. A bale packaging article compression apparatus comprising a coating layer having a thickness of not more than .27.
[0020]
A coating layer having a coefficient of static friction with the short fiber mass of 0.27 or less is formed on an inner wall of the press box. Examples of the material of the coating layer include ultrahigh molecular weight polyethylene, ceramics such as titanium, alumina and titanium carbide, and solid film lubricant. This coating layer can be formed using a well-known coating molding method widely known in the art.
[0021]
With this configuration, the inner wall of the press box can be easily slipped, and the coefficient of friction between the press box and the short fiber mass can be continuously reduced significantly. For this reason, when compressing the short fiber mass, a large frictional force is not partially generated between the short fiber mass and the inner wall of the press box, and a packing bale having a stable compression form can be effectively obtained.
[0022]
The invention according to claim 5 is characterized in that the coating layer is formed of a thin film body coated with a solid film lubricant.
For the coating layer, a solid film lubricant is particularly effectively used. Examples of the solid film lubricant include conventionally known general molybdenum disulfide-based solid film lubricants, fluororesin-based solid film lubricants, and the like. A thin film having a smooth and uniform thickness can be effectively formed on the inner wall of the press box by using a well-known film forming method which has been widely known.
[0023]
Since the thin film has a small coefficient of friction and excellent abrasion resistance, abnormal wear between the inner wall of the press box and the short fiber mass can be prevented. Since the friction pressure between the inner wall of the press box and the short fiber mass does not fluctuate significantly, the compression of the short fiber mass can be extremely stabilized while maintaining the initial compression force on the short fiber mass.
[0024]
The invention according to claim 6 is characterized in that the inner wall of the press box has a tapered surface that gradually narrows in the compression direction of the press jig.
In order to remarkably exert the operation and effect of the above-mentioned claim 1, a taper surface that becomes gradually narrower in the compression direction of the press jig is formed on the inner wall of the press box, and the coefficient of static friction with the short fiber mass is reduced. A coating layer having a thickness of 0.27 or less can be formed. With this configuration, the pressing force on the short fiber mass is also equalized, and uniform compression is performed. In addition, the short fiber mass can be formed into a shape that gradually narrows in the compression direction of the press jig.
[0025]
The invention according to claim 7 is configured such that a cylindrical press box having an inner wall on the side and a pair of press jigs arranged to face each other with the press box interposed therebetween are used to put the press box into the press box. A method for compressing a bale packaging article, wherein the article such as short fibers is compressed between a pair of the press jigs and formed into a packaging form, wherein the article put into the press box is gradually compressed in a compression direction. A method for compressing an article for bale packaging, characterized in that the article is compressed into a narrowed form.
The compression method of the present invention is carried out using the compression device according to the first to sixth aspects. A typical method is the invention according to claim 7, wherein a short fiber mass is formed by using a tapered surface formed on an inner wall of the press box according to a compression size based on a compression ratio between the press jigs. Aggressive compression in a form that gradually narrows in the compression direction.
[0026]
In order to gradually narrow the article in the compression direction, for example, as described above, compression molding is performed using the tapered surface formed on the inner surface wall of the press box, or from the periphery of the pressure receiving plate to the compression plate to the compression plate. Compression molding can be performed using a member provided with a raised portion inclined toward the surface. For this reason, the pressing force against the short fiber mass generated by the compression pressure of the press jig can form the short fiber mass in which the pressure receiving plate side is narrower than the short fiber mass. As a result, in addition to reliably achieving the functions and effects of the inventions described in the respective claims, the shape of the short fiber mass can be maintained in a stable form.
[0027]
Further, in order to remarkably exert the above-mentioned effects, the short fibers are slid by bringing the article into sliding contact with the inner wall of the press box with a static friction coefficient of 0.27 or less as in the invention according to claim 8. The lump can prevent abnormal abrasion between the inner wall of the press box and the inner wall of the press box, and a desired packing form can be effectively obtained. Moreover, a good packing form can be maintained for a long period of time even during storage, transportation or transportation, as in the above-described inventions.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the accompanying drawings.
FIG. 1 is a schematic explanatory view schematically showing an example of a bale packaging article compression apparatus according to a representative embodiment of the present invention, and FIG. 2 is an example of a press jig and a packing bale applied to the compression apparatus. FIG. 3 is a plan view schematically showing a press box applied to the compression apparatus, and FIG. 4 is a longitudinal sectional view of the press box. In this embodiment, a packing bale of cotton (hereinafter, referred to as a short fiber lump) obtained by cutting a fiber lump or a fiber tow into a short length will be described as an example, but the present invention is not limited to this. For example, it can also be used for various articles that are obtained by compressing articles obtained by cutting pulp or paper or the like into a desired packing form.
[0029]
A compression packing device (not shown) mainly includes a weighing hopper, a transport device, and a compression device. In this type of compression packing apparatus, short cut fibers are stored in a measuring hopper (not shown) in advance, and a predetermined amount of short fiber mass is supplied to the compression apparatus via a transport device. As shown in FIG. 1, a compression device 1 according to the present embodiment includes a fiber input box 2 having a rectangular parallelepiped shape having a fiber input port 2 a communicating with an upper opening and a lower opening, and facing a lower side of the input box 2. It comprises a press box 3 having a rectangular parallelepiped shape which is disposed vertically and arranged, and a pair of upper and lower compression tables 4 and 5, which are a pair of upper and lower press jigs disposed opposite to each other with the boxes 2 and 3 interposed therebetween. ing.
[0030]
The fiber input box 2 is fixed to moving means (not shown). The press box 3 is attached to a moving means that can move independently of the fiber input box 2, and at least one side wall is openable and closable, as shown in FIG. According to the illustrated example, an opening / closing door 3a is provided on one side wall of the press box 3 via a hinge or the like. The upper compression table 4 is attached to a compression means (not shown) for compressing the short fiber mass by moving downward. One of the lower compression tables 5 is fixed to holding means (not shown).
[0031]
Even in the present embodiment, a required amount of short fiber mass in a weighing hopper (not shown) is pressed from the fiber input port 2a of the fiber input box 2 through a conveying device such as a belt conveyor or a pusher, as in the related art. It is thrown into Box 3. In the press box 3, the short fiber mass is compressed between the upper compression table 4 to which the upper packaging sheet is attached and the lower compression table 5 to which the lower packaging sheet is attached. The compression operation may be performed only once or may be repeated two or more times to compress a required amount of short fiber mass to a predetermined compression height.
[0032]
After the short fiber mass is compressed, the opening / closing door 3a of the press box 3 is opened, and the press box 3 is moved laterally by the moving means, or the compression table 4, 5 is held in a state where the short fiber mass is held. Are moved laterally by the moving means, and the short fiber mass is taken out of the press box 3. Thereafter, the short fiber mass is compressed again between the compression tables 4 and 5. Then, the short fiber mass is automatically or manually wrapped by the packaging sheet 6 composed of the upper packaging sheet attached to the upper compression table 4 and the lower packaging sheet attached to the lower compression table 5 as described above. After packing the short fiber mass, the binding band 7 is inserted into the plurality of binding band gaps 4a and 5a provided on the compression tables 4 and 5, and the short fiber mass is packed. In this manner, the substantially rectangular packing bale 8 shown in FIG. 2 is manufactured.
[0033]
The compression device 1 may be constituted by a main compression device and a plurality of preliminary compression devices (not shown). In this case, after the pre-compression is performed in the press box 3, the press box 3 is moved to the main compression device side via a moving means (not shown), and the short fiber mass is fully compressed to a predetermined compression height. I do. Further, instead of the moving means for opening the opening / closing door 3a of the press box 3 and moving the short fiber mass sandwiched between the compression tables 4 and 5 in the lateral direction, the press box itself is pulled upward or downward and the short fibers are pulled out. Means for moving away from the mass may be provided.
[0034]
The compression packing device and the compression device 1 configured as described above have a well-known structure that has been widely known. Therefore, the present invention is not limited to the above configuration. The main configuration of the present invention is the structure of the press box 3 applied to the compression device 1. The structure of the press box 3 can be used for various types of compression and packing devices that perform compression, packaging, and packing. Although the shape of the inner wall 31 of the press box 3 according to the illustrated example is not particularly limited, according to the present embodiment, the inner dimension of the press box 3 is such that the long side L1 is as shown in FIG. It is particularly useful that the length is 1080 mm and the short side L2 is 680 mm. By setting such internal dimensions, the packing bale 8 can be efficiently transported by the existing container.
[0035]
As shown in FIG. 4, the inner wall 31 of the press box 3 is provided with the upper compression table 4 so as to prevent the lower portion of the short fiber mass from spreading significantly more than the upper portion of the short fiber mass when packing the short fiber mass. Has a tapered surface 32 gradually narrowing in the compression direction. According to the present embodiment, the taper angle of the tapered surface 32 is preferably set to 2.0 ° or less, and the short fiber mass is compression-molded into a form that gradually narrows in the compression direction of the upper compression table 4. A space A is secured inside the press box 3. More preferably, a tapered surface 32 having a taper angle of 0.5 ° or more and 2.0 ° or less is particularly useful.
[0036]
In the present invention, the installation position of the tapered surface 32 is a portion that does not come into contact with the upper compression table 4 and may be set to at least a pair of opposed inner walls 31, and is not limited to the illustrated example. Absent. According to the present embodiment, the tapered surface 32 is located near the lower portion of the pair of inner walls 31, 31 facing each other in the longitudinal direction that is long in the lateral direction, and the article height area at the end of the compression in the press box 3. H. In the present invention, it is a matter of course that the tapered surface 32 can be formed in at least a part of the article height region H.
[0037]
With this configuration, the short fiber mass can be positively compressed against the inner wall 31 of the press box 3 according to the compression size between the upper compression table 4 and the lower compression table 5. By the pressing force on the short fiber mass generated by the compression pressure of the upper compression table 4, the short fiber mass in which the lower compression table 5 side with respect to the upper compression table 4 becomes narrow can be formed. When packing the short fiber mass, for example, the lower portion of the short fiber mass gradually narrows in the compression direction of the upper compression table 4. For this reason, after packing, even if the lower part of the compressed short fiber mass expands due to the repulsive force (expansion force) of the short fiber mass, the packing form is maintained such that all surfaces of the packing veil 8 intersect perpendicularly with each other. And a stable packing veil 8 can be obtained effectively.
[0038]
Further, in the present embodiment, the inner wall 31 of the press box 3 is made to be slippery, and the coefficient of friction between the press box 3 and the short fiber mass is continuously reduced remarkably. The inner wall 31 of the press box 3 has a coating layer having a coefficient of static friction with the short fiber mass of 0.27 or less. A coating layer having smooth and uniform dimensions can be effectively formed on the inner wall 31 of the press box 3 by using a well-known coating (film) forming method widely known in the related art.
[0039]
As a material of the coating layer, ultrahigh molecular weight polyethylene or ceramics such as titanium, alumina, and titanium carbide can be used. Further, the coating layer may be formed of a thin film coated with a solid film lubricant having a small friction coefficient and excellent abrasion resistance. As the solid lubricant, conventionally known general Teflon, silicon, molybdenum disulfide-based solid film lubricant, fluorine resin-based solid film lubricant, and the like can be used.
[0040]
When the coating layer is formed on the inner wall 31 of the press box 3, a large frictional force is not locally generated between the inner wall 31 of the press box 3 and the short fiber mass when the short fiber mass is compressed. Wear can be prevented. The compression of the short fiber mass can be stabilized with the initial compressive force on the short fiber mass without partially changing the friction pressure between the inner wall 31 of the press box 3 and the short fiber mass.
[0041]
The installation position of the coating layer on the inner wall 31 of the press box 3 is not particularly limited. However, in the present embodiment, the coefficient of static friction with the short fiber mass on the entire inner wall 31 of the press box 3 is set. Is not more than 0.27. With such a configuration, the pressing force against the short fiber mass is also equalized, and uniform compression is performed, and the short fiber mass can be formed into a shape that gradually narrows in the compression direction of the upper compression table 4.
[0042]
It goes without saying that the present invention is not limited to the above embodiments. In the present embodiment, for example, the weight of the packing bale 8 is not particularly limited, but is preferably 200 kg or more and 600 kg or less. The fibers to be compressed, which are suitable for the present invention, are not particularly limited as long as they are generally used, but they are particularly useful for compression-packing fibers having strong repulsion, especially acrylic fibers. The packing bale 8 has a density of 300 kg / m. 3 It is preferable that it is above. The density of the packing bale 8 is 300 kg / m 3 If it is smaller than this, the loading posture may become unstable when stacking the packing bale 8 in a warehouse or the like, which is not very practical.
[0043]
Furthermore, it is preferable that the compression pressure on the fiber mass in the press box 3 is a plurality of times at a low pressure of, for example, about 400 kPa, and the short fiber mass is repeatedly compressed so as to have a target packing volume. The compression pressure of the compression device 1 can be any of various devices and methods capable of compressing the short fiber mass to a target packing size, but is preferably 9 MPa or less.
[0044]
Furthermore, according to the above-described embodiment, the lower compression table 5 is fixed, and the compression apparatus 1 that compresses the short fiber mass by moving the upper compression table 4 downward has been exemplified. For example, the upper compression table 4 is fixed, and the lower compression table 5 may move upward, or both the upper compression table 4 and the lower compression table 5 may move forward and backward. .
[0045]
In the above-described embodiment, compression of a horizontally long packing bale is taken as an example, but the present invention is not limited to this. For example, as shown in FIG. Of course, you can. In any case, in order to gradually narrow the article in the compression direction, for example, instead of using the tapered surface formed on the inner wall of the press box as described above, at least one of the lower compression tables 5 is opposed to each other. Compression molding can be performed using a member provided with a raised portion inclined from the peripheral portion toward the upper compression table 4.
[0046]
Further, the material of the packaging sheet 6 is not particularly limited as long as the form of the packaging veil 8 is maintained. For example, one side or both sides of a polypropylene woven fabric is laminated with a polypropylene sheet. Can be used effectively. The material, size, number, etc. of the binding bands 7 are not particularly limited as long as the packing form of the packing bale 8 is maintained. It is preferable to appropriately select materials and the like so that the band length does not exceed 300 mm with respect to the band length at the time of bundling, either during storage of the packing veil 8 or after shipping. In the present embodiment, the binding band 7 is made of a polyester material.
[0047]
The compression device 1 according to the present embodiment configured as described above can stably form a packaging form having a hexahedron in which all surfaces of the packaging veil 8 intersect perpendicularly with each other. Safety during transportation can be sufficiently ensured. In addition, a surface other than the surface of the packing bale 8 facing the press jig can be arbitrarily selected as the installation surface, and the packing bale 8 can be rationally stored in a stacked state in a plurality of stages. .
[0048]
FIG. 6 shows an example of transportation in a case where a surface composed of one side 8b of the packing bale 8 depending on the short side L2 of the press box 3 and one side 8c of the packing bale 8 depending on the compression height is set as an installation surface. Reference numeral 9 indicates an arm portion (platter) of the transporter. As shown in FIG. 3, the packing bale 8 shown in FIG. 6 has sides 1a and 8b depending on the long side L1 and short side L2 of the press box 3 of 1120 mm and 720 mm, and a side 8c depending on the compression height of 1100 mm. It is. When the plurality of packing bales 8 are simultaneously held by the platter 9, the maximum holding interval is 2240 mm.
[0049]
As is clear from FIGS. 6 and 7, when the surface consisting of one side 8a and 8c of the packing bale 8 is used as the installation surface as in the related art, only two bales can be sandwiched. For this reason, the number of packing bales that can be transported at one time is limited, and transport efficiency is significantly reduced. On the other hand, in the present embodiment, as described above, the short fiber mass can be constantly maintained in a stable form for a long time, and the surface of the packing veil 8 other than the surface facing the press jig is removed. The installation surface can be arbitrarily selected. For this reason, when the surface consisting of one side 8b and 8c of the packing bale 8 is set as the installation surface, the three bales can be sandwiched by using the platter 9. As a result, the storage, transportation, and transport work of the packing bale 8 can be easily performed, and the number of steps for storing, transporting, and transporting the packaging bale 8 can be significantly reduced.
[0050]
Hereinafter, more specific examples of the present invention will be described together with comparative examples. The measurement and evaluation methods for the characteristic values and the like are as follows.
[0051]
(1) Static friction coefficient
The packing veil 8 of 300 kg of fiber from which the lower packaging sheet 6 of 720 mm × 1050 mm has been removed is placed on a plate (1000 mm × 2000 mm) made of the same material as the inner surface material (coating material) of the press box 3 so that the upper surface is horizontal. And put the above-mentioned packing veil 8 on it. Then, after standing still for one minute, the packing bale 8 was pulled horizontally and the force when the packing bale 8 started to move was measured with a force gauge, and the static friction coefficient was calculated from the following equation (1).
μs = Fs / Fp ... 1
μs: Static friction coefficient
Fs: Static friction force (N)
Fp: Contact force (N)
[0052]
(2) Fineness
According to the method of 8-5-1A of JIS L-1015, the mass of 300 fibers cut into 30 mm was measured, the fineness was calculated, and the average value was obtained from the average value of 5 measurements.
[0053]
(3) Number of crimps
In accordance with the method of JIS L-1015 8-12-1, the number of crimps per 25 mm when an initial load of 0.18 mN × the number of indicated tex was applied to one fiber was counted, and the number was determined from an average of 20 times. Was.
[0054]
(4) Form stability of packing bale 8
The packing bale 8 is piled up in four stages, with the surface consisting of one side 8b of the packing bale 8 depending on the short side L2 of the press box 3 and one side 8c of the packing bale 8 depending on the compression height as an installation surface, and visually observed by five people. Was evaluated, and pass / fail was determined. A pass (◎) indicates that the packaging bale 8 has a very good shape stability with no inclination in the loading posture of the stacked packaging bale 8 and a case where the shape stability is determined to be good. The test was passed (o) and the others were rejected (x). Hereinafter, a case where the press box 3 of the present invention is used and a case where the conventional press box is used are compared.
[0055]
(Example 1)
An acrylonitrile copolymer (acrylonitrile / vinyl acetate = 93/7 weight ratio) having a reduced viscosity of 1.95 was obtained by an aqueous suspension polymerization method. This was dissolved in dimethylacetamide so as to have a copolymer concentration of 25% by weight to obtain a spinning stock solution. This spinning stock solution is wet-spun into a spinning bath filled with a 30% by weight aqueous solution of dimethylacetamide at 40 ° C., stretched 5 times while washing the solvent in boiling water, and after adhering an oil agent, a hot roller at 150 ° C. For dry densification. Further, relaxation heat treatment was performed in a 250 kPaG pressurized steam to obtain an acrylic fiber bundle having a single yarn fineness of 3.3 dtex and a fiber bundle fineness of 150 ktex.
[0056]
This acrylic fiber bundle is again crimped at 11 pieces / 25 mm, cut into a length of 102 mm, and after measuring 300 kg of this raw cotton, the inner dimensions are 1080 mm x 680 mm, and the solid film lubricant is applied to the inner wall 31. It was put into the coated press box 3. After compressing 10 times with a compression pressure of 400 kPa on an upper compression table 4 of 1060 mm × 660 mm, the press box 3 containing short fibers of acrylic fiber is moved to the lower compression table 5, and the upper compression table 4 and the lower compression table are compressed. The short fiber mass was compressed again between the tables 5 with a compression pressure of 2.0 MPa. After that, the opening / closing door 3a of the press box 3 is opened, the press box 3 is moved to the original initial position, and the short fiber mass is compressed again between the upper compression table 4 and the lower compression table 5 with a compression pressure of 2.7 MPa. did. Thereafter, as described above, the short fiber mass was wrapped with a packaging sheet 6 on which a polypropylene sheet was laminated, and strapped with a binding band 7 made of a polyester material to obtain a 300 kg packaging bale 8. The inner surface material of the press box 3 and the coefficient of static friction of the short fiber mass were measured, and the form stability of the packing bale 8 was evaluated. Table 1 shows the results.
[0057]
(Examples 2 to 5, Comparative Example 1)
A 300 kg packaging bale 8 was obtained in the same manner as in Example 1 except that the fiber fineness, cut length, inner surface material of the press box 3 and taper angle were changed. The coefficient of static friction between the inner surface material of the press box 3 and the acrylic fiber was measured, and the form stability of the packing veil 8 was evaluated. Table 1 shows the results.
[0058]
[Table 1]

[Brief description of the drawings]
FIG. 1 is a schematic explanatory view schematically showing an example of a bale packaging article compression apparatus according to a typical embodiment of the present invention.
FIG. 2 is a schematic explanatory view schematically showing an example of a press jig and a packing bale applied to the compression device.
FIG. 3 is a plan view of a press box applied to the compression device.
FIG. 4 is a vertical sectional view of the press box.
FIG. 5 is a view showing another example of a packing bale formed by the compression device.
FIG. 6 is a diagram for explaining an example of transporting a packing bale formed by the compression device.
FIG. 7 is a view for explaining a conventional example of transporting a packing bale.
[Explanation of symbols]
1 Compressor
2 Textile input box
2a Fiber inlet
3 Press box
3a Openable door
4 Upper compression table
4a, 5a Clearance for binding band
5 Lower compression table
6 Packaging sheet
7 unity bands
8 Packing veil
8a-8c One side of the packing veil
9 Transporter platters
31 Inner wall
32 tapered surface
A Molding space
H Article height area
L1 Press Box Long Side
L2 Press Box Short Side

Claims (8)

  1. A cylindrical press box having an inner wall on the side, and a pair of press jigs arranged opposite to each other with the press box interposed therebetween,
    A bale packaging article compression apparatus for compressing an article such as a short fiber put into the press box between the pair of press jigs and forming the article into a packing form,
    An apparatus for compressing bale packaging articles, wherein an inner wall of the press box has a tapered surface that gradually narrows in a compression direction of the press jig.
  2. The compression device according to claim 1, wherein the tapered surface is formed in an article height region at the time of completion of compression in the press box.
  3. The compression device according to claim 1, wherein the angle of the tapered surface is 2.0 ° or less.
  4. A cylindrical press box having an inner wall on the side, and a pair of press jigs arranged opposite to each other with the press box interposed therebetween,
    A bale packaging article compression apparatus for compressing an article such as a short fiber put into the press box between the pair of press jigs and forming the article into a packing form,
    An inner wall of the press box has a coating layer having a coefficient of static friction with the article of 0.27 or less.
  5. The compression device according to claim 4, wherein the coating layer is formed of a thin film body coated with a solid film lubricant.
  6. The compression apparatus according to claim 4, wherein an inner wall of the press box has a tapered surface that becomes gradually narrower in a compression direction of the press jig.
  7. Using a cylindrical press box having an inner wall on the side and a pair of press jigs arranged opposite to each other with the same press box interposed therebetween, articles such as short fibers put into the press box are spilled. A method for compressing a bale packaging article that is compressed between a pair of the press jigs and formed into a packing form,
    A method for compressing an article for bale packaging, comprising compressing the article put into the press box into a form that gradually narrows in the compression direction.
  8. The method according to claim 7, wherein the article is slid against the inner wall of the press box with a static friction coefficient of 0.27 or less.
JP2002192486A 2002-07-01 2002-07-01 Compression equipment for article for packing bale and compression method for the same Pending JP2004034062A (en)

Priority Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7306093B2 (en) 2003-02-14 2007-12-11 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US7424850B2 (en) 2005-05-09 2008-09-16 Celanese Acetate Llc Fiber bale and a method for producing the same
US7487720B2 (en) 2007-03-05 2009-02-10 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
US7730832B2 (en) 2005-04-28 2010-06-08 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
JP2012071933A (en) * 2010-09-28 2012-04-12 Mitsubishi Rayon Co Ltd Transferring machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7306093B2 (en) 2003-02-14 2007-12-11 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US7958696B2 (en) 2003-02-14 2011-06-14 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US9598184B2 (en) 2003-02-14 2017-03-21 Eastman Chemical Company Method for packaging fiber material
US7739857B2 (en) 2003-02-14 2010-06-22 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US8156862B2 (en) 2005-04-28 2012-04-17 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
US7730832B2 (en) 2005-04-28 2010-06-08 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
JP2012229062A (en) * 2005-05-09 2012-11-22 Celanese Acetate Llc Fiber bale and method for producing the same
US7424850B2 (en) 2005-05-09 2008-09-16 Celanese Acetate Llc Fiber bale and a method for producing the same
JP2009508764A (en) * 2005-05-09 2009-03-05 セラニーズ アセテート,エルエルシー Fiber veil and method for producing the same
US7487720B2 (en) 2007-03-05 2009-02-10 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
US7610852B2 (en) 2007-03-05 2009-11-03 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
JP2012071933A (en) * 2010-09-28 2012-04-12 Mitsubishi Rayon Co Ltd Transferring machine

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