JPS62215063A - Dyeing bobbin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dyeing bobbin for winding yarn, sliver, etc. for dyeing.

[Conventional technology]

In recent years, package dyeing, which dyes threads, slivers, etc. in a discontinuous manner, has been widely used. This type of package dyeing involves dyeing fiber bundles of various shapes attached to the gear rear.
This is a method of dyeing by passing a dye solution that is forced through the wire.
Usually, dyeing is carried out using a package dyeing apparatus as shown in FIG. That is, cheese (including corn, etc.) 1, which is made by winding threads or slivers around dyed bobbins, is stacked and mounted on a spindle (carrier) 2, which is then mounted inside a sealable dyeing drum 3 and heated at high temperature. Dyeing is carried out by passing the dyeing liquid 4 under high pressure from inside the cheese 1 to the outside (from the outside to the inside) as shown by the arrow, and circulating the dyeing liquid. The cheese 1 used at this time is, for example, as shown in FIG. 14, in which yarn or sliver is wound around a dye bobbin 6 in which a plurality of dye solution flow holes 5 are bored using a soft winder or the like. While the package dyeing described above has the advantage of being able to dye a large amount at the same time and having a small bath ratio, on the other hand,
If there is a gap between the stacked upper and lower cheeses 1, the dyeing solution 4 will collect in the gap and be discharged, resulting in a disadvantage that poor dyeing or uneven dyeing is likely to occur. Therefore, the gap between the cheeses 1 is caused by the mutual lateral displacement of the dyeing bobbins that occurs during the cheese stacking or dyeing process, and as shown in FIG. It is proposed that the two be tightly fitted by a spacer 7. In addition, the fact that the end faces of the winding yarn of cheese 1 are not in close contact with each other causes the dye solution to concentrate in the gap between the end faces, causing poor dyeing and uneven dyeing, as shown in Figure 16. It has been proposed to use a shrink-type dyeing bobbin 10. This bobbin is made of synthetic resin such as polypropylene and is made thinner than conventional bobbins, and has dye solution flow holes 11 regularly bored on its outer circumferential surface. When yarn or the like is wound around this dyeing bobbin 10 as shown by the two-dot chain line and then compressed in the axial direction, the dye liquid flow hole 11 has a characteristic of deforming and shrinking. Therefore, the dyeing bobbin 10
When the cheeses made using the dyed bobbin are stacked and compressed in the axial direction, the dyed bobbin ends 10a and 10b protruding from the wound yarn 12 contract, and the end surfaces of the wound yarn 12 come into close contact with each other.
Due to this close contact, the stacked wound yarns become continuous and the dye solution is prevented from escaping, resulting in high uniform dyeing properties. This state is shown in FIG. Moreover, stacking the cheese 1 and compressing it in the axial direction in this way loosens the tension of the thread 12 wound around the dyeing bobbin and increases the permeability of the dye liquid, further preventing uneven dyeing. effect will be obtained. However, this dyeing bobbin 10 is thin so that it can easily shrink, and is finished to have a large porosity due to the dye liquid flow holes 11, so once it shrinks and deforms, even if the pressure is released, it will not retain its shape before shrinking. won't return. Therefore, the dyeing bobbin 10 is disposable and cannot be reused.

[Problem that the invention seeks to solve]

In order to prevent uneven staining, for example, when stacking cheeses using the above spacers, it is necessary to fit the cheeses and spacers alternately during stacking. It requires a great deal of time and effort. Furthermore, when the shrink bobbin is used as the core, the shrink bobbin is discarded once as described above, which is extremely uneconomical.

This invention was made in view of the above circumstances, and it is an object of the present invention to provide a dyeing bobbin that can be stacked using a stone wheel and that can withstand repeated use, and that does not cause uneven dyeing when used for package dyeing. That purpose.

[Means for solving problems]

In order to achieve the above object, the dyeing bobbin of the present invention is a substantially cylindrical dyeing bobbin having a plurality of dye solution flow holes bored in the outer periphery, and the vicinity of the opening at one end is connected to another similar dyeing bobbin. The outer diameter of the part near the opening at one end is set to be approximately equal to the inner diameter of the part near the opening at the other end so that a plurality of dyeing bobbins can be stacked by being inserted into the opening at the other end of the bobbin. A plurality of dye liquid flow holes are formed in the vicinity of the end opening so that each dye liquid flow hole can match with the corresponding dye liquid flow hole when the dye bobbins are stacked.

That is, the present inventors have conducted a series of studies in order to obtain a dyeing bobbin that can withstand repeated use and that does not cause uneven dyeing when used for package dyeing. The bobbins themselves are shaped so that they can be stacked by fitting them together, and the dye liquid is also applied to the fitting part so that the flow rate of the dye liquid during dyeing is approximately equal between the fitting part and the non-fitting part. When the flow holes are drilled, cheeses with this dyeing bobbin as a core are stacked and compressed in the axial direction, so that the ends of the wound threads are in close contact with each other, and the cheeses are fitted together, and the dyeing liquid is The present invention was achieved by discovering that the dye is distributed almost evenly and does not cause uneven dyeing.

In this invention, the term "cheese" is used to include not only those in which the wound yarn is cylindrical, but also those in which the wound yarn is conical, that is, so-called cones, and other shapes.

Next, the present invention will be explained in detail based on examples.

〔Example〕

FIG. 1 shows an embodiment of the invention.

This dyeing bobbin 20 is configured such that a plurality of dyeing bobbins are stacked vertically, and has a cylindrical opening near one end 21 and a substantially cylindrical shape that slightly tapers from one end to the other end. A body portion 22 having a shape and a portion 23 near the opening at the other end having a larger diameter than the portion near the opening at the one end 21 are integrally formed.

Ribs 24 formed at equal intervals in the circumferential direction and ribs 25 formed at equal intervals in the axial direction protrude from the outer peripheral surfaces of the one end opening vicinity 21 and the body part 22. The dyeing bobbin 20 is reinforced by dividing the outer peripheral surfaces of the dyeing bobbin 21 and the body portion 22 into a grid pattern. Said rib 24,2
Each surface 26 divided by 5 is provided with dye liquid flow holes 27a (27b) through which the dye liquid flows during dyeing. The dye liquid circulation hole 27a in the vicinity of the opening at one end 21 has a larger diameter than the dye liquid circulation hole 27b in the body part 22. Further, in the vicinity of the other end opening 23, there is a rectangular dye liquid circulation hole 2.
7C are drilled at equal intervals.

To explain in more detail, on the outer circumferential surface of the dyeing bobbin 20, ribs 24 are formed at equal intervals in the circumferential direction and protrude outward, as shown in FIG. , on the lower inner peripheral surface of the dyeing bobbin 20,
Grooves 28 corresponding to the ribs 24 are spaced at equal intervals in the circumferential direction as shown in FIG.
is formed. The ribs 24 not only have a reinforcing effect on the dyeing bobbin 20, but also when a plurality of cheeses are piled up in a cheese state during dyeing and are compressed in the axial direction, they are pushed by the winding yarn of the upper cheese and wind the lower cheese. It also has the effect of reducing the contact area between the dyeing bobbin 20 and the wound yarn so that the yarn is compressed smoothly in the axial direction. The total area of the protruding surface 24a (shaded area in FIG. 1) of this rib 24 is the area 2 near the opening at one end.
From the above point of view, it is preferable that the surface area is approximately 10 to 30% of the total surface area of the body portion 1 and the body portion 22. When the ribs 24 and the grooves 28 are fitted, the dye liquid circulation hole 27c in the area 23 near the other end opening of the upper dyeing bobbin 20 in the stacked state and the dye liquid circulation hole 27c in the area near the opening at one end of the lower dyeing bobbin 20' in the stacked state. 27a
° and are matched as shown in FIG.

That is, the outer diameter R+ (FIG. 2) of the portion 21 near the opening at one end including the rib 24 and the inner diameter R2 (FIG. 3) formed by the bottom surface 28a of the groove 28 at the portion near the opening at the other end 23 are approximately R, = R2, and when a dyeing bobbin having the same shape is inserted into the opening near the other end opening 23, the protrusions of the rib 24 and the recess of the groove 28 and are designed to fit together. At this time, the fitting depth and overlap width) are as follows:
1 and the length M of the inner groove part 28 of the other end opening vicinity part 23. That is, if it is set so that approximately L=M, the fitting depth will be L (M). The above-mentioned fitting depth is preferably about 10 to 30% of the entire length of the dyeing bobbin 20 from the viewpoint of the degree of compression of the wound yarn and the fitting strength. Note that the width of the protruding tip of the rib 24 is slightly smaller than the width of the protruding base, and on the other hand, the groove 28 in the vicinity of the other end opening 23 has a wide groove entrance so as to correspond to the rib 24. The rib 24 in the vicinity of the opening at one end 21 and the groove 28 in the vicinity of the opening at the other end 23 are easily inserted and fitted.

Further, the connection portion 30 between the body portion 22 and the other end opening vicinity portion 23 is connected to the protruding surface 24a of the rib 24 and the other end opening vicinity portion 23.
The outer peripheral surface of No. 3 is inclined so that it is flush with the wall and is thick. This is because this part is the part that requires the most strength because it receives the insertion of other dyeing bobbins from below when stacking in multiple stages, and receives the pressure from the end surface of the inserted bobbin during cheese compression.

Similarly, from the viewpoint of the strength of the dyeing bobbin 20,
Each rectangular dye liquid distribution hole 27 adjacent to the connection part 30
A rib 31 is provided at the center of 0.

Such a dyed bobbin 20 can be obtained by molding a thermoplastic resin with high mechanical strength such as polyphenylene oxide, a glass fiber reinforced polypropylene resin, or the like using a conventional method.

Dyeing using this dyeing bobbin 20 is performed, for example, in the manner described below. This will be explained with reference to FIG.

That is, first, yarn to be dyed is wound around the dyeing bobbin 20 by a known method to make cheese. Next, the plurality of cheeses thus obtained are sequentially mounted on the spindle 2 of a package dyeing device (see FIG. 13). At this time, the dyeing bobbin 20 for a certain cheese 34
Insert the one end opening vicinity part 21 into the other end opening vicinity part 23 of another similar dyeing bobbin 20'' at 34 degrees as shown in the arrow, and insert the rib 24 of the one end opening vicinity part 21 (see Fig. 2). and a groove portion 2 formed inside the other end opening vicinity portion 23.
8 (see Figure 3). By repeating this process, an appropriate number of cheeses are stacked, and then the stacked cheeses are compressed from above and below the shaft, and in this state, they are fixed with screws to tighten the fit between the dyeing bobbins. At the same time, the ends of the cheese winding threads are brought into close contact with each other. The end surfaces of the wound yarn are brought into close contact with each other through the following process. That is, in the initial stage of compression, as shown in FIG. Press like this. Since the winding thread of the cheese 34 is wound diagonally across the axis of the dyeing bobbin 20, the winding thread of the lower cheese 34 is bent due to the above-mentioned pressure, and the tension of the thread is reduced. This phenomenon occurs uniformly regardless of the shape of the dyeing bobbin. That is, due to the above-mentioned pressure, the yarn that had been tightly wound around the dyeing bobbin 20 is loosened, and the thread that has been tightly wound around the dyeing bobbin 20 is loosened.
A gap will be created between it and 0. Therefore, if the axial compression progresses further from this state, within the above gap,
The end of the part 23 near the other end opening of the upper cheese 34 degree enters, and finally, as shown in FIG. It appears as if it has moved. In this state, a plurality of cheeses stacked around the spindle are each pressurized as shown by the arrow, and the end faces of each winding thread are in close contact with the end faces of the winding threads of the upper and lower rows. Each winding thread in a plurality of stacked cheeses becomes like one winding thread as a whole. Therefore, the phenomenon in which the dye liquid leaks from the overlapping portion of the end surfaces of the upper and lower winding yarns is prevented.
The entire stack of wound yarns is dyed uniformly. At this time, the dyeing bobbin for each cheese is in a state where the opening at one end is inserted into the vicinity of the opening at the other end,
Unlike conventional products, there is no lateral shifting between the dyeing bobbins during cheese stacking or dyeing operations, and there is no leakage of dye solution due to lateral shifting, which also contributes greatly to the uniform dyeing described above. . Furthermore, since the cheese 34 is pressurized as shown by the arrow, the wound yarn is compressed in the axial direction, the tension of the yarn is relaxed, and the dyeing solution can easily penetrate and be dyed uniformly. This also contributes to the above-mentioned uniform dyeing. What should be noted is that in the above-mentioned cheese dyeing, the dyeing bobbin 20 of the present invention has not only the body portion 22 but also the fitting portion 21 near the opening at one end.
Since dye liquid flow holes 27a and 27c are also formed in the vicinity of the other end opening 23 (see Fig. 1), the dye liquid flows into the dyeing bobbin 20 in the fitted state as shown in Fig. 7. When the liquid is discharged from the dye liquid passage hole 27b of the body part 22, the dye liquid circulation hole 27a' of the other fitted dyeing bobbin 20'', and the dye liquid of the other end opening vicinity part 23 is discharged from the body part 22 and penetrates into the wound yarn. Liquid flow hole 27c
It passes through the overlapping flow hole 35. Therefore, there is no difference in the flow rate of the dye solution between the mating part and the non-fitting part, and uniform dyeing can be achieved. This is the greatest feature of the invention.

In order to achieve more uniform dyeing, the above-mentioned molded flow holes 35
It is desirable that the total area of the dye solution flow holes 27b of the body portion 22 be similar to each other.
The dye liquid distribution hole 27a is made larger in diameter than the dye liquid distribution hole 27b of the body part 22, and the dye liquid distribution hole 27a of the dye liquid distribution hole 27a of the part 21 near the one end opening is made larger in diameter than the dye liquid distribution hole 27b of the body part 22.
When 7a is fitted, the dye solution flow hole 2 in the other end opening vicinity portion 23
The overlapping flow hole 35 formed by overlapping with the dye liquid flow hole 27b of the body portion 22 is made to be close to each other.

In addition, the porosity of the dye solution distribution voids (27b, 35) created by such dye solution distribution holes 27a, 27b, and 27C is the total void area (27b, 35) of the entire stack of dyeing bobbins attached to one dyeing spindle. It is sufficient to set the area so that the cross-sectional area (total area + total area of It is preferable to set the setting so that the AA′ cross section in FIG. 7 is as shown in FIG.
, 27b from the inside to the outside of the dyeing bobbin 20 as shown by the arrow, the diameters of the dye liquid flow holes 27a and 27b are formed in a shape that widens outward so that the water flow resistance is reduced. There is.

In addition, in the dyeing bobbin 20, if continuous protrusions 36 as shown in FIG. 9 are provided at the tops of the ribs 24 provided at equal intervals in the circumferential direction, threads etc. It is possible to prevent the dyeing bobbin 20 from being biased towards the smaller diameter side. Such a continuous protrusion 36
may be provided on all the ribs 24, or may be provided on one of the two adjacent ribs 24 as shown in the figure. Furthermore, in order to prevent the thread from slipping as described above, the outer circumferential surface of the other end opening vicinity portion 23 may be knurled to have fine irregularities 37.

Furthermore, in the dyeing bobbin 20, as shown in FIG.
This notch 38 can be used to properly process end threads, thereby simplifying the operation. For example, during winding, the end thread can be wound inside the dyeing bobbin 20 and set in a wine goo to wind the thread, or during dyeing, the end thread can be sandwiched between packages, or it can be fixed to the package surface with pins, etc. .

FIG. 11 shows another embodiment of the invention.

This dyeing bobbin 50 includes a portion 51 near the opening at one end and a body portion 5.
2 and a portion 53 near the opening at the other end, and a portion 51 near the opening at one end.
and the body part 52 are set so that the diameter of the cylinder gradually decreases as it approaches the other end opening vicinity part 53, and the other end opening vicinity part 53 is a cylinder with a large diameter from the connection part with the body part 52. It is formed in the shape of The inner diameter P at the opening of the one-end opening vicinity portion 51 is narrowed down to an extremely small value compared to the outer diameter Q thereof, and the one-end opening vicinity portion 51
The sizes of the dye liquid distribution hole 54a and the dye liquid distribution hole 54b in the area 53 near the opening at the other end are the same, and furthermore, the width of the rib 55a in the area 51 near the opening at one end is the same as that of the rib 55b in the body part 52.
It is smaller than. The other parts are the same as the dyeing bobbin 20 of FIG. 1, and the same or equivalent parts are given the same numbers.

Since this dyeing bobbin 50 has a narrow opening inner diameter P in the vicinity of the opening 51 at one end, it is directly attached to a small diameter spindle (a so-called three-arrow spindle) when stacking a plurality of cheeses and dyeing them. No rattling will occur. In this way, as a method of narrowing down the opening inner diameter P of the portion 51 near the opening at one end, other than the above-mentioned embodiments, for example, the shape shown in FIGS. Any shape may be used as long as the inner diameter P is reduced as shown in FIG.

In addition, in the dyeing bobbin of the present invention, it is not necessarily necessary to fit the upper and lower bobbins together by fitting the protrusions of the ribs and the grooves as in the above embodiments. In other words, as long as the dyeing bobbin itself is thick enough to withstand the pressure applied during cheese compression, there is no need to form a rib, so the outer diameter near the opening at one end and the inner diameter near the opening at the other end are simply determined. It is sufficient to set them to be approximately equal, insert the portion near the opening at one end into the opening at the other end, and fit the dye liquid flow holes in the overlapping portions together.

〔Effect of the invention〕

As described above, in the dyeing bobbin of the present invention, the outer diameter of the area near the opening at one end is set to be approximately equal to the inner diameter of the area near the opening at the other end, and the area near the opening at one end and the area near the other end are each Since multiple dye solution flow holes are drilled so that they can match the corresponding dye solution flow holes when the dye bobbins are stacked, the outer periphery of the upper and lower dye bobbins is The end surfaces of the wound threads are brought into close contact with each other at the upper and lower joints, so that the threads wound around all the stacked bobbins become one piece. In addition, as described above, dye solution flow holes are provided in the vicinity of the opening at one end and the vicinity of the opening at the other end of the dyeing bobbins that overlap when the dyeing bobbins are stacked,
Since the dye liquid flows even in the overlapping part of the bobbins in a stacked state, the dye liquid passes through the bobbins evenly in the overlapping part and in the non-overlapping part. Combined with the effect that the wound yarns are integrated, it is possible to achieve unprecedented uniform dyeing. Moreover, the dyeing bobbin of this invention is
When stacking the upper and lower dyeing bobbins, the part near the opening at one end of one bobbin is inserted into the opening at the other end of the other bobbin.
Appropriate stacking conditions can be obtained automatically. Therefore, there is no need to use spacers as in the conventional case, making the stacking work more convenient. Furthermore, this dyeing bobbin has sufficient strength to withstand pressing during stacking and compression, and does not undergo deformation after compression, so it can be used repeatedly and is economical.

[Brief explanation of drawings]

Fig. 1 is a front view of one embodiment of this invention, Fig. 2 is a plan view thereof, and Fig. 3 is the same (the bottom view, Fig. 4, Fig. 5, and Fig. 6 are usage patterns of one embodiment). 7th sectional view explaining
The figure is also a partial front view illustrating the usage mode of one embodiment.
FIG. 8 is a partial sectional view thereof, FIGS. 9 and 10 are front views showing a modification of one embodiment, FIG. 11 is a front view of another embodiment, and FIG. 12 is a partial perspective view showing the modification. , FIG. 13 is a sectional view showing one staining mode by a conventional dyeing device, and FIG.
This figure is a perspective view of one conventional example, FIG. 15 is a perspective view showing how another conventional example is used, and FIGS. 16 and 17 are cross-sectional views showing still other ways of using the conventional example. 20... Dyeing bobbin 21... Portion near one end opening 2
2... Body part 23... Other end opening vicinity part 24.2
5... Ribs 27 a, 27 b, 27 c
... Dye liquid flow hole 28 ... Groove Fig. 1 Fig. 2 Fig. 1 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 3 δ Fig. 10 Pond La 8 Fig. 11 (a) Fig. 12 Fig. 13 Fig. 14 Fig. 16 Fig. 1] Fig. 17

Claims (10)

[Claims] (1) A dyeing bobbin having a substantially cylindrical shape with a plurality of dye solution flow holes bored in the outer periphery, the vicinity of the opening at one end being inserted into the opening at the other end of another similar dyeing bobbin. The outer diameter of the part near the opening at one end is set to be approximately equal to the inner diameter near the opening at the other end so that dyeing bobbins can be stacked, and the stacked state of the dyeing bobbins is set in the vicinity of the opening at one end and the part near the opening at the other end. A dyeing bobbin characterized in that a plurality of dye solution flow holes are bored so as to match the corresponding dye solution flow holes in the dyeing bobbin. (2) Projecting ribs are provided on the outer peripheral surface near the opening at one end at equal intervals in the circumferential direction, and grooves corresponding to the ribs are provided at equal intervals in the circumferential direction on the inner peripheral surface near the opening at the other end. A dyeing bobbin according to claim 1 provided. (3) The total area of the protruding surfaces of the protruding ribs provided on the outer circumferential surface near the opening at one end is set to 10 to 30% of the total area of the outer circumferential surface on which the protruding ribs are formed. Dyeing bobbin as described in section. (4) The dyeing bobbin according to claim 2 or 3, wherein the depth of engagement between the protruding rib and the groove is set to 10 to 30% of the entire length of the dyeing bobbin. (5) The dyeing bobbin according to any one of claims 2 to 4, wherein at least a portion of the protruding surface of the protruding rib is formed into a continuous protrusion. (6) According to any one of claims 1 to 5, wherein the dye liquid circulation holes in the vicinity of the opening at one end and in the vicinity of the opening at the other end are formed larger than the dye liquid circulation holes in the other parts. Dyeing bobbin as described. (7) Dye liquid flow holes are drilled so that the total area of the dye liquid flow gaps of the fully stacked dye bobbins attached to one dyeing spindle is 2 to 8 times the cross-sectional area at the minimum inner diameter of the dye bobbin used. A dyeing bobbin according to any one of claims 1 to 6 provided herein. (8) Claims 1 to 7, wherein the dye liquor circulation hole is formed in a shape such that the diameter of the hole on the side where the dye liquor exits is larger than the diameter of the hole on the side where the dye liquor enters. The dyed bobbin described in any of the above. (9) The dyeing bobbin according to any one of claims 1 to 8, wherein a notch is formed in a part of the inner periphery of the opening in the vicinity of the other end opening. (10) The staining according to any one of claims 1 to 9, wherein the inner diameter of the opening near the opening at one end is formed to be small so that it is approximately equal to the outer diameter of the three-arrow spindle. bobbin.