JP4613621B2 - Monofilament yarn take-up device and monofilament slab catcher - Google Patents

Description

The present invention relates to a synthetic fiber monofilament take-up device including a slab catcher that can reliably catch an abnormal yarn diameter portion, that is, a slab portion (knitting yarn portion), and a monofilament slab catcher used in the take-up device .

  Monofilaments, especially synthetic fiber monofilaments used for screen woven fabrics, are required to have finer fineness and extremely high fineness uniformity due to the recent high mesh printing of high-precision printing screen woven fabrics.

  In particular, synthetic fiber monofilament yarns used in screen textiles used in the IT industry, such as for printing fine electrode patterns used in plasma display manufacturing, require finer and higher fineness uniformity. .

  For this reason, of course, it is of course more difficult to manage fineness spots over a relatively long period of time that has been used in the past. ) Has been an important issue in recent years.

  In general, when a synthetic polymer polymer is melt-spun into a synthetic fiber monofilament, a relatively short yarn portion having a yarn diameter larger than a normal yarn diameter is called a so-called polymer degradation product or foreign matter generated during polymerization or melting. Knitting may occur.

  When the monofilament is woven as a screen wrinkle, this slab portion (knitting yarn portion) blocks the screen mesh, which is a fatal defect for the screen wrinkle. As methods for preventing the occurrence of this slab portion (knitting yarn portion), a method for eliminating an abnormal polymer retention portion in the melting step, a method for mixing polymers, and the like have been proposed.

  However, monofilaments with extremely high fineness and uniform yarn diameter requirements are required to minimize the occurrence of slab portions (knitting yarn portions), but even a very small amount of foreign matter can cause slab portions (knitting yarn portions). Therefore, it is difficult to completely prevent the occurrence of the slab portion (knitting yarn portion) by the conventional method. Therefore, in the production of very high-quality monofilaments for IT industry applications, it is important not only to prevent the occurrence of the slab portion (knitting yarn portion) but also to prevent the slab portion (knitting yarn portion) from flowing out to the next process. It becomes.

Generally, as a means for detecting a slab portion (node portion), a monofilament is run through a guide so-called slab catcher that forms a slit that is wider than the yarn diameter and sufficiently narrower than the slab portion (node portion). Means are known. The yarn diameter is represented by the following formula.
D = √ {4 × T / (10000 × π × ρ)} × 0.001
D: Thread diameter [mm]
T: Fineness of monofilament yarn after drawing [dtex]
ρ: density of monofilament yarn [g / m ³ ]

However, in the slab catcher (Patent Document 1) having a slit of 0.04 to 0.08 mm, which is known as a prior art document, the slit width is as wide as 0.04 to 0.08 mm. As a result, there is a concern that the slab portion (knitting yarn portion) of the monofilament of fineness applied to the slab portion (knitting yarn portion) passes through the slab catcher and is mixed into the package.
JP 59-157348 A (Claims)

The present invention solves the above-mentioned problems, reliably captures the slab portion (node portion) of the synthetic fiber monofilament yarn, and eliminates the production of a yarn package including the slab portion (node portion). The object is to provide a take-up device and a monofilament slab catcher .

The monofilament yarn take-up device of the present invention that achieves the above-described object has a configuration as described in the following (1) or (2) .
(1) At a path position where a monofilament yarn having a yarn diameter within a range of 0.019 to 0.035 mm travels linearly , {Yarn diameter of the monofilament yarn (mm) + (0 to 0.005 )} (Mm) is a slab catcher having a slit width in the range of 3 mm or more in the direction in which the monofilament yarn runs linearly , and a flatness of 0.001 mm. A pair of guides each having at least one plane having a surface roughness Rmax of 0.8 μm or less and a length of 3 mm or more in the direction in which the monofilament yarn runs, and one surface and a corresponding back surface The surface roughness Rmax of each surface is within 0.8 μm, the flatness of the one surface is within 0.001 mm, and the one surface is used as a reference surface. The parallelism of the back surface corresponding to this is within 0.001 mm, and the thickness of the one surface and the corresponding back surface is {the diameter of the monofilament yarn (mm) + (0 to 0.005)} A plate having a thickness within a range of (mm) and having a length of 3 mm or more in the direction in which the monofilament yarn runs, and between the planes of the pair of guides each having the flatness and the surface roughness. And the guide and the plate are pressed and fixed from a direction perpendicular to the guide and the contact surface of the plate to thereby form a slit having the slit width and a continuous length of the slit width. A monofilament yarn take-up device comprising a slab catcher that is formed and configured to pass the monofilament yarn through the slit.
(2) At the path position where the monofilament yarn having a yarn diameter within a range of 0.019 to 0.035 mm travels linearly, {the yarn diameter (mm) of the monofilament yarn + (0 to 0.005 )} (Mm) is a slab catcher having a slit width in the range of 3 mm or more in the direction in which the monofilament yarn runs linearly, and a flatness of 0.001 mm. And a surface roughness Rmax of 0.8 μm or less and a guide having at least one plane having a length of 3 mm or more in the direction in which the monofilament yarn runs, and a surface roughness Rmax of 0.8 μm as one plane And the flatness of the upper surface is within 0.001 mm, and the parallelism of the lower surface is 0 with the upper surface as a reference surface. A stepped plane which is within 0.001 mm and the distance between the upper step surface and the lower step surface is within the range of {the diameter of the monofilament yarn (mm) + (0 to 0.005)} (mm). And a stepped guide having a length of 3 mm or more in the direction in which the monofilament yarn travels, and a flatness and a surface roughness of the guide within the range and a stepped surface of the stepped guide. A slab catcher formed by forming a slit having the slit width and a continuous length of the slit width by pressing and fixing the guide and the stepped guide from a direction perpendicular to the facing surface. A monofilament yarn take-up device, characterized in that the monofilament yarn is configured to pass through the slit.

In addition, the monofilament yarn take-up device of the present invention described in (1) or (2) preferably has a specific configuration described in the following (3) .
(3) When the slab portion in the monofilament yarn that the slab catcher travels reaches the slit portion, the slab catcher moves even if the slab catcher is a small slab portion that does not reach the point where the monofilament yarn is cut by the slit. The monofilament yarn take-up device as set forth in (1) or (2) above, further comprising an alarm mechanism for notifying the occurrence of the slab part by

Moreover, the slab catcher for monofilaments of the present invention that achieves the above-described object has a configuration as described in the following (4) or (5) .
(4) A slab catcher for monofilament yarns having a yarn diameter in the range of 0.019 to 0.035 mm, the flatness is within 0.001 mm, and the surface roughness Rmax is within 0.8 μm, and A pair of guides each having at least one plane having a length of 3 mm or more in the direction in which the monofilament yarn runs, and the surface roughness Rmax of each of the one surface and the corresponding back surface is within 0.8 μm, The flatness of the one surface is within 0.001 mm, the parallelism of the back surface corresponding to the one surface as a reference surface is within 0.001 mm, and the thickness between the one surface and the corresponding back surface Is {thickness of the monofilament yarn (mm) + (0 to 0.005)} (mm), and the monofilament yarn is allowed to travel. A plate having a length of 3 mm or more in a direction in which the plate is inserted between surfaces of the pair of guides having the flatness and the surface roughness. A monofilament slab catcher formed by pressing and fixing the guide and the plate from a right angle direction .
(5) A slab catcher for monofilament yarn having a yarn diameter in the range of 0.019 to 0.035 mm, the flatness is within 0.001 mm, and the surface roughness Rmax is within 0.8 μm, and A guide having at least one plane having a length of 3 mm or more in the direction in which the monofilament yarn runs, and an upper stage surface and a lower stage surface having a surface roughness Rmax of 0.8 μm or less as one plane and the flatness of the upper stage surface Is within 0.001 mm, the parallelism of the lower step surface is within 0.001 mm with the upper step surface as a reference surface, and the distance between the upper step surface and the lower step surface is {the yarn diameter of the monofilament yarn (mm) + (0-0.005)} (mm) having a stepped plane that is a distance in the range, and a length of 3 mm or more in the direction in which the monofilament yarn runs A step having a flatness and a surface roughness of the guide within the above range and a stepped surface of the stepped guide are opposed to each other, and the guide and the step are perpendicular to the facing surface. A monofilament slab catcher formed by pressing and fixing the attached guide.

According to the present invention, the slab portion (node portion) of the synthetic fiber monofilament can be captured more reliably than in the conventional method, and the yarn package including the slab portion (node portion) can be eliminated. A monofilament yarn take-up device and a monofilament slab catcher can be provided.

Hereinafter, the monofilament yarn take-up device and the monofilament slab catcher of the present invention will be described more specifically based on embodiments shown in the drawings.

The monofilament yarn take-up device and monofilament slab catcher according to the present invention has {the monofilament at a path position along which a monofilament yarn having a specific yarn diameter within a range of 0.019 to 0.035 mm travels linearly. A specific slit width within the range of yarn diameter (mm) + (0 to 0.005)} (mm), and the slit width is 3 mm or more continuously in the direction in which the monofilament yarn runs linearly And a slab catcher whose structural details will be described later is provided so that the monofilament yarn passes through the slit.

  FIG. 1 is a schematic model diagram showing an example of a drawing machine in which the monofilament yarn take-up device of the present invention is incorporated.

  In FIG. 1, unstretched monofilament yarn 1 unwound from the drum passes through nip roll 2 and feed roller 3 and is predetermined between first heating roller 4, second heating roller 5, and third heating roller 6. In the process of drawing at a draw ratio of 1, the yarn diameter becomes a specific yarn diameter in the range of 0.019 to 0.035 mm, and then wound around the yarn 9 via the yarn feed roller 8.

  A specific slit width within the range of the yarn diameter +0 to 0.005 mm of the monofilament yarn stretched between the third heating roller 6 and the yarn feed roller 8, and the slit width is 3 in the direction in which the monofilament yarn travels. A slab catcher 7 having a length of ˜30 mm is provided.

  Therefore, when a slab portion thicker than the normal yarn diameter, that is, a knot portion, appears, the slab (knob) portion is captured and cut by the slab catcher 7.

  The installation position of the slab catcher is not only in the middle of the drawing machine process as described above, but also drawn yarn unwound from the pirn 10 which has been drawn as shown in FIG. If the suction gun 13 is used, the slab catcher 11 may be installed between the pan and the take-up roller.

  In addition, when adopting a process for producing monofilament yarns in a continuous process without winding the melt spinning process and the drawing process once between the wound yarns, the monofilament yarn after being drawn is removed from the slab catcher. You may make it pass through a slit. That is, in the case of this process, the monofilament yarn discharged from the nozzle hole of the melt spinning machine is continuously wound on the wound body without being wound once, and the monofilament yarn after being stretched is used as it is. It is good also as a structure which passes in the slit of a slab catcher, and then picks up and winds up on a wound thread body.

  A specific example of the slab catcher used in the present invention is shown in FIG. FIG. 3A is an assembly configuration diagram of the slab catcher, FIG. 3B is a front view after assembly, and FIG. 3C is a left side view thereof.

  The configuration of the slab catcher of this first example includes a pair of guides 14 and 14 ′ and a plate 15, guides 14 and 14 ′ and bolts 17 and 17 ′ for fixing the plate 15.

  In such a configuration, the flatness of the A surface and the A ′ surface of each of the guides 14 and 14 ′ is within 0.001 mm, the surface roughness is within Rmax = 0.8 μm, and 3 mm or more in the direction 33 in which the monofilament yarn runs. Has a length of Further, the surface roughness of the B surface and the B ′ surface of the plate 15 is within Rmax = 0.8 μm, the flatness of the B surface is within 0.001 mm, and the parallelism of the B ′ surface with the B surface as a reference surface. Finished within 0.001mm.

  Further, the thickness from the B surface to the B ′ surface is a specific thickness within a range of the yarn diameter to be passed through the slab catcher +0 to 0.005 mm. The bolts 17 and 17 are such that the finished surfaces of the guide and the plate are in contact, that is, the A surface of the guide 14 and the B surface of the plate 15 and the B ′ surface of the plate 15 and the A ′ surface of the guide 14 ′ are in contact. It is fixed to press with '. By comprising in this way, the slit 18 is formed between a pair of guides.

  As for the method for fixing the guide and the plate, if the guide and the plate are fixed by pressing, it is not necessary to directly fasten the guide and the plate with a bolt. An example of a method of fixing the guide and the plate without fastening them with bolts is shown in FIG. FIG. 4A shows a front view, FIG. 4B shows a plan view, and FIG. 4C shows a right side view. A pair of guides 19 and 19 'having a finished surface along the ridgeline of the cylinder and the plate 20 are fixed by pressing them from the outside with a holder 22 having a tapered portion 21.

  A second example of the configuration of the slab catcher is shown in FIG.

  FIG. 5 (a) shows a slab catcher assembly configuration diagram of the second example, FIG. 5 (b) shows a front view after assembly, and FIG. 5 (c) shows a left side view thereof. The configuration of the slab catcher of the second example includes a guide 23, a stepped guide 24 having a stepped surface C surface and a D surface, a guide 23 and bolts 25 and 25 'for fixing the stepped guide 24. The E surface of the guide 23 is finished with a flatness within 0.001 mm and a surface roughness within Rmax = 0.8 μm, and has a length of 3 mm or more in the direction 33 in which the monofilament yarn runs.

  Further, the C surface and the D surface of the stepped guide 24 each have a surface roughness of Rmax = 0.8 μm or less, and the D surface has a flatness of 0.001 mm or less. The parallelism of is finished within 0.001 mm. The distance from the C surface to the D surface is a specific length within the range of the yarn diameter to be passed through the slab catcher +0 to 0.005 mm, and a length of 3 mm or more in the direction 33 in which the monofilament yarn runs. Have.

The guides 23 and the stepped guides 24 are fixed so that the finished surfaces of the guides 23 and the stepped guides 24 are in contact with each other, that is, so that the E surface of the guides 23 and the D surface of the stepped guides 24 are in contact. . With this configuration, a slit 27 is formed between the guide 23 and the stepped guide 24. In addition, about the fixing method of a guide and a stepped guide, if it is a case where it fixes by pressing, it does not need to be fastened directly with a volt | bolt.

  A third example of the configuration of the slab catcher is shown in FIG.

The configuration of the slab catcher of this third example is that the slab catcher 28 and the holder 29, the hinge 30 connecting the slab catcher 28 and the holder 29, and the detection held by being sandwiched between the slab catcher 28 and the holder 29. It consists of a plate 31. The slab catcher 28 has a hinge 30 as a fulcrum and can move (swing) in a direction in which the monofilament yarn 32 runs linearly, and the slab part (node part) does not reach the diameter until it is cut by the slit part. On the other hand, when the slab catcher 28 is operated, the detection plate 31 held between the slab catcher 28 and the holder 29 is dropped, and it can be notified to the outside that the slab catcher has moved.

  6A shows a state before detecting the slab portion (knitting yarn portion), and FIG. 6B shows a state where the detection plate 31 has been dropped after detecting the slab portion (knitting yarn portion). In other words, when the slab portion (knitting yarn portion) reaches the slab catcher 28, the slab catcher itself swings even if it is not a slab portion (knitting yarn portion) having a warp enough to cut the yarn by the slit. The presence of the slab portion (knitting yarn portion) can be detected by passing the slab portion (knitting yarn portion) having the same thread diameter through the slit portion of the slab catcher.

  As specific alarm means, when the detection plate 31 falls, an electric circuit that activates the alarm means is energized to generate an alarm. Examples of the alarm means include, for example, turning on an alarm light, generating a caution sound, or recording the occurrence / existence of a slab part (knitting thread part) in a computer when energized. It can be configured to be performed by one or a plurality of combinations.

In the description of the present invention, the surface roughness Rmax, flatness, and parallelism are values measured by the methods described below. A first example of the slab catcher of the present invention shown in FIG. 3 and a second example of the slab catcher of the present invention shown in FIG. 5 will be described as examples.
(1) Surface roughness Rmax
The surface roughness is measured using a stylus type surface roughness measuring instrument according to JIS standard B 0651-1976, and the definition of the surface roughness Rmax is based on JIS standard 0601-1982. In the first example of the slab catcher according to the present invention, the measurement points to be measured using the measuring device are the points where the monofilament yarns run on the A surface of the guide 14 and the A ′ surface of the guide 14 ′, and the monofilaments travel. One arbitrary position in the direction to be measured is measured, and the measurement points on the B surface and the B ′ surface of the plate 15 measure an arbitrary one direction passing through the centroid of each surface.

Further, in the second example of the slab catcher of the present invention, the measurement is performed at any one position in the traveling direction of the monofilament and the traveling direction of the monofilament on each of the E surface of the guide 23 and the C surface of the stepped guide 24. The measurement location on the D surface of the attached guide 24 measures an arbitrary direction passing through the centroid of the D surface.
(2) Flatness The definition of flatness conforms to JIS standard B0621-1984.

  In the first example of the slab catcher of the present invention, the flatness measurement surfaces are the A surface of the guide 14, the A ′ surface of the guide 14 ′, and the B surface of the plate 15, which support the measurement surface substantially horizontally. Then, grid-like lines intersecting at right angles with a 5 mm interval are drawn on the measurement surface, and the mutual height of the measurement points is measured with the intersection of each line as the measurement point. In addition, the drawing method of the said line shall draw a line so that the intersection of each line may ride most on a measurement surface. Then, the flatness is defined as the minimum distance of the geometric parallel plane that sandwiches all the measurement points from the obtained mutual height.

Further, in the second example of the present invention, the E surface of the guide 23 and the stepped surface are the D surface of the id 24, and the measurement surface is supported almost horizontally and intersects the measurement surface at intervals of 5 mm and at right angles. A grid-like line is drawn, the intersection of each line is taken as a measurement point, and the mutual height of the measurement points is measured. In addition, the drawing method of the said line shall draw a line so that the intersection of each line may ride most on a measurement surface. Then, the flatness is defined as the minimum distance of the geometric parallel plane that sandwiches all the measurement points from the obtained mutual height.
(3) Parallelism The definition of parallelism conforms to JIS standard B0621-1984.

  The parallelism in the first example of the slab catcher of the present invention is measured using a measuring apparatus shown in FIG.

  That is, a first-grade optical flat 34 conforming to JIS standard B7430-1977 is placed on a table 35 and installed so that the B surface of the plate 15 is in contact therewith. Next, a microscopic measurement in which the mutual height of three vertexes of an equilateral triangle having apexes on a circle having a width of -1 mm shown in JISB0621-1984 from the outer diameter of the surface 36 of the optical flat 34 is connected to the base 35. It is measured by the instrument 37. A plane including the three points is set as a reference plane. Next, a grid-like line intersecting at right angles with a 5 mm interval is drawn on the surface of the B ′ surface of the plate 15, and the microscopic measurement is performed with the intersection of each line as the measurement point and the mutual height of the measurement point connected to the table 35. It is measured by the instrument 37. Note that the grid-like line drawing method is such that the line is drawn so that the intersection of each line is on the measurement surface most. Thereafter, all the measurement points are sandwiched from the obtained mutual heights, and the minimum distance of the geometric parallel plane parallel to the reference plane is defined as parallelism.

  Moreover, the measurement of the parallelism in the 2nd example of the slab catcher of this invention is measured using the measuring apparatus shown in FIG.

  That is, a first-grade optical flat 38 conforming to JIS standard B 7430-1977 is placed on a table 39, and is installed so that the D surface of the stepped guide 24 is in contact therewith. Next, a micrometer in which the mutual heights of three vertexes of an equilateral triangle whose vertices are placed on a circle having a width of -1 mm shown in JIS B0621-1984 from the outer diameter of the surface 40 of the optical flat 38 are connected to the base 39. Measured by 41. A plane including the three points is set as a reference plane.

  Next, a grid-like line that intersects at right angles with a 5 mm interval is drawn on the surface of the C surface of the stepped guide, and the intersection of each line is taken as a measurement point, and the height of the measurement point is connected to the table 39. Measured by 41. Note that the grid-like line drawing method is such that the line is drawn so that the intersection of each line is on the measurement surface most. Thereafter, all the measurement points are sandwiched from the obtained mutual heights, and the minimum distance of the geometric parallel plane parallel to the reference plane is defined as parallelism.

  Below, the Example of the slab catcher by this invention and the comparative example of the slab catcher of a prior art are shown.

  First, a monofilament to be detected as a slab yarn portion (node yarn portion) was manufactured as follows.

  That is, a polyethylene terephthalate chip mixed with a gel-like foreign material is melted at a spinning temperature of 300 ° C. to extrude a slab yarn portion (knitting yarn portion), extruded from a spinneret, cooled and solidified, and then an oil emulsion oil is added to an oiling roller. Then, the monofilament undrawn yarn was wound up once, and this was drawn with a drawing device to take up a monofilament having a yarn diameter of 0.030 mm.

  The slab known from the prior art document in which the pirn wound by the above method is installed in the take-up device shown in FIG. 2 and the slit width is set to 0.040 mm between the pirn of the take-up device and the take-up roll. A catcher and a slab catcher according to the present invention with a slit width set to 0.031 mm are installed, the yarn length is unraveled for 85,000 m, and the slab yarn portion (knitting yarn portion) is captured. It was. In addition, the slab catcher according to the present invention is arranged on the downstream side of the slab catcher known as the prior art document. The diameter of the slab yarn portion (knitting yarn portion) captured by the slab catcher was measured with a magnifying microscope.

In addition, the slab catcher known as the prior known technical document has the slit width of 0.040 mm continuously 1 mm in the direction in which the monofilament yarn runs linearly . The slab catcher of the present invention has the 0.031 mm slit width continuously 3 mm in the direction in which the monofilament yarn travels substantially linearly.

  As a result, 12 slab yarn portions (node yarn portions) were captured, but the 12 slab yarn portions (node yarn portions) can pass through the slab catcher of the prior art, and the slab catcher according to the present invention. It was something that was captured.

  When the yarn diameter of the captured slab yarn portion (node yarn portion) was measured, it was 0.037 to 0.050 mm.

  That is, a slab yarn portion (knitting yarn portion) that cannot be captured by a conventional slab catcher can be captured by the present invention.

Figure 1 shows, as an example of a device configured by incorporating a take-up device of the monofilament yarn according to the present invention, is a model diagram showing an example of a drawing machine. FIG. 2 shows another example of an apparatus constructed by incorporating the monofilament yarn take-up device according to the present invention. When the drawn yarn released from the drawn pan is drawn by a suction gun via a take-up roller, A monofilament yarn take-up device according to the present invention, in which the monofilament slab catcher according to the present invention is installed between the take-up roller and the take-up roller. FIG. 3 illustrates an example (first example) of the structure of a monofilament slab catcher according to the present invention that can be used in the monofilament yarn take-up device of the present invention . FIG. FIG. 3 (b) is a front view after assembly, and FIG. 3 (c) is a left side view of the slab catcher as an example. FIG. 4 illustrates another example (second example) of a monofilament slab catcher according to the present invention that can be used in the monofilament yarn take-up device of the present invention . FIG. 4B is a front view of the slab catcher as the second example, FIG. 4B is a plan view thereof, and FIG. 4C is a right side view thereof. FIG. 5 illustrates another example (third example) of a monofilament slab catcher according to the present invention that can be used in the monofilament yarn take-up device of the present invention . FIG. FIG. 5B is a plan view of the monofilament slab catcher according to the third embodiment of the present invention , FIG. 5B is a plan view thereof, and FIG. 5C is a left side view thereof. FIG. 6 illustrates an example of the operating state of another example (fourth example) of the monofilament slab catcher structure according to the present invention that can be used in the monofilament yarn take-up device of the present invention . (a) FIG monofilament slab catcher according to the present invention showing a state before the detection of the slab parts, FIG. 6 (b) monofilament slab catcher according to the present invention detects the slab portion swinging It is the figure which showed the state when it did (right after detection). FIG. 7 shows a parallelism measuring device in a first example of a monofilament slab catcher according to the present invention. FIG. 8 shows a parallelism measuring device in a second example of a monofilament slab catcher according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Undrawn yarn 2 ... Nip roll 3 ... Feed roll 4 ... 1st heating roller 5 ... 2nd heating roller 6 ... 3rd heating roller 7, 11, 28 ... Slab catcher 8 ... yarn feed rollers 9, 10 ... pans 12, 12 '... take-up rollers 13 ... suction guns 14, 14', 19, 19 ', 23 ... guides 15, 20, .... Plate 16 ... Plate thickness 17, 17 ', 25, 25' ... Bolts 18, 27 ... Slit 21 ... Tapered portion 22, 29 ... Holder 24 ... Stepped Guide 26 ... Stepped distance 30 ... Hinge 31 ... Detection plate 32 ... Monofilament yarn 33 ... Running direction 34, 38 ... optical flat 35, 39 ... stand of monofilament yarn 36, 40 ... Optical Surface of the rat 37 and 41 ... micrometer vessel

Claims (5)

{Yarn diameter of the monofilament yarn (mm) + (0-0.005)} (in a path position where the monofilament yarn having a yarn diameter within a range of 0.019 to 0.035 mm travels linearly. mm), and the slit width is a slab catcher continuously having 3 mm or more in the direction in which the monofilament yarn linearly travels , and has a flatness within 0.001 mm and A pair of guides each having at least one plane having a surface roughness Rmax of 0.8 μm or less and a length of 3 mm or more in the direction in which the monofilament yarn runs, and one side and the corresponding back side The surface roughness Rmax of the surface is within 0.8 μm, and the flatness of the one surface is within 0.001 mm. The corresponding parallelism of the back surface is within 0.001 mm, and the thickness of the one surface and the corresponding back surface is {the yarn diameter of the monofilament yarn (mm) + (0 to 0.005)} (mm ) And a plate having a length of 3 mm or more in the direction in which the monofilament yarn runs, and between the planes of the pair of guides each having the flatness and the surface roughness. A plate is inserted, and the guide and the plate are pressed and fixed from a direction perpendicular to the guide and the contact surface of the plate, thereby forming a slit having the slit width and a continuous length of the slit width. the slub catcher comprising Te provided, monofilament yarn take-off device, characterized by comprising constitute within the slit as the monofilament yarn is passed. {Yarn diameter of the monofilament yarn (mm) + (0-0.005)} (in a path position where the monofilament yarn having a yarn diameter within a range of 0.019 to 0.035 mm travels linearly. mm), and the slit width is a slab catcher continuously having 3 mm or more in the direction in which the monofilament yarn linearly travels , and has a flatness within 0.001 mm and The surface roughness Rmax is within 0.8 μm, and the guide having at least one plane having a length of 3 mm or more in the direction in which the monofilament yarn is run, and the surface roughness Rmax within 0.8 μm as one surface. The upper step surface and the lower step surface have a flatness within 0.001 mm, and the parallelism of the lower step surface with respect to the upper step surface as a reference surface is 0.00. And a stepped plane having a distance within the range of {mm diameter of the monofilament yarn (mm) + (0 to 0.005)} (mm) is within 1 mm. And a stepped guide having a length of 3 mm or more in the direction in which the monofilament yarn travels, and the flatness and surface roughness of the guide are in the above range and the stepped surface of the stepped guide is opposed to each other. And a slab catcher formed by forming the slit having the slit width and a continuous length of the slit width by pressing and fixing the guide and the stepped guide from a direction perpendicular to the opposing surface. The monofilament yarn take-up device is configured so that the monofilament yarn passes through the slit. When the slab portion in the monofilament yarn on which the slab catcher travels reaches the slit portion, the slab catcher moves even if the slab catcher moves even if it is a small slab portion that does not reach the position where the monofilament yarn is cut by the slit. 3. The monofilament yarn take-up device according to claim 1 , further comprising an alarm mechanism for informing the occurrence of the portion. A slab catcher for monofilament yarns having a yarn diameter within a range of 0.019 to 0.035 mm, having a flatness of 0.001 mm or less and a surface roughness Rmax of 0.8 μm or less, A pair of guides each having at least one plane having a length of 3 mm or more in the traveling direction, and the surface roughness Rmax of each of the one surface and the corresponding back surface is within 0.8 μm, and The flatness of one surface is within 0.001 mm, the parallelism of the back surface corresponding to the one surface is within 0.001 mm, and the thickness between the one surface and the corresponding back surface is { Monofilament yarn diameter (mm) + (0 to 0.005)} (mm) in thickness and the direction in which the monofilament yarn runs The plate is inserted between the surfaces of the pair of guides having the flatness and the surface roughness, and is perpendicular to the contact surface between the guide and the plate. A monofilament slab catcher formed by pressing and fixing the guide and the plate . A slab catcher for monofilament yarns having a yarn diameter within a range of 0.019 to 0.035 mm, having a flatness of 0.001 mm or less and a surface roughness Rmax of 0.8 μm or less, A guide having at least one plane having a length of 3 mm or more in the traveling direction, and an upper stage surface and a lower stage surface having a surface roughness Rmax of 0.8 μm or less as one plane, and the flatness of the upper stage surface is 0. Within 001 mm, the parallelism of the lower step surface is within 0.001 mm with the upper step surface as a reference surface, and the distance between the upper step surface and the lower step surface is {the yarn diameter of the monofilament yarn (mm) + (0 0.005)} (mm) having a stepped plane that is a distance within a range of 3 mm and having a length of 3 mm or more in the direction in which the monofilament yarn runs. A stepped guide, wherein the flatness and surface roughness of the guide are within the above range and the stepped surface of the stepped guide is opposed to each other, and the guide and the stepped guide are perpendicular to the facing surface. A monofilament slab catcher formed by pressing and fixing.

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