EP3517664B1 - Spinngarneinzugsvorrichtung - Google Patents

Spinngarneinzugsvorrichtung Download PDF

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Publication number
EP3517664B1
EP3517664B1 EP19150067.7A EP19150067A EP3517664B1 EP 3517664 B1 EP3517664 B1 EP 3517664B1 EP 19150067 A EP19150067 A EP 19150067A EP 3517664 B1 EP3517664 B1 EP 3517664B1
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EP
European Patent Office
Prior art keywords
roller
communication passage
preheating
drawing apparatus
conditioning
Prior art date
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Active
Application number
EP19150067.7A
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English (en)
French (fr)
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EP3517664A1 (de
Inventor
Tosei Yonekura
Futoshi Kitayama
Ryo Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMT Machinery Inc
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TMT Machinery Inc
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Publication date
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Publication of EP3517664A1 publication Critical patent/EP3517664A1/de
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching

Definitions

  • the present invention relates to a spun yarn drawing apparatus configured to draw yarns.
  • JP 2014-101610 A discloses a spun yarn drawing apparatus in which preheating rollers (heating roller in JP 2014-101610 A ) and conditioning rollers are housed in a thermal insulation box (heat retaining box in JP 2014-101610 A ).
  • the conditioning rollers are provided downstream in the yarn running direction of the preheating rollers, and are higher in temperature and speed than the preheating rollers. After yarns are heated to a drawing temperature by the preheating rollers, the yarns are drawn between a preheating roller which is the most downstream one in the yarn running direction and a conditioning roller which is the most upstream one in the yarn running direction, and the drawn yarns are conditioned by the conditioning rollers.
  • EP 3 064 621 A is related to the preamble of claim 1, and JP S61-252311 A , JP 6258698 B2 and WO2014/049316 A1 disclose similar apparatuses.
  • a spun yarn drawing apparatus of the present invention aims at restraining power consumption while suitably controlling the temperature of a preheating roller.
  • the present invention relates to a spun yarn drawing apparatus including: at least one preheating roller which heats yarns before drawn; at least one conditioning roller which is provided downstream in a yarn running direction of the at least one preheating roller and is higher in temperature and speed than the at least one preheating roller; and a thermal insulation box which houses the at least one preheating roller and the at least one conditioning roller, the yarns being drawn between the at least one preheating roller and the at least one conditioning roller, the spun yarn drawing apparatus further including: at least one partition portion provided between the at least one preheating roller and the at least one conditioning roller; a communication passage which causes a low-temperature space which is on the preheating roller side of the at least one partition portion to communicate with a high-temperature space which is on the conditioning roller side of the at least one partition portion; and at least one shutter which is provided to change the flow passage area of the communication passage and wherein, the communication passage is a passage formed at a location different from a yarn path between the at least one preheating roller and
  • the flow amount of air flowing in the communication passage is controlled and therefore an amount of heat transferred from the high-temperature space to the low-temperature space is controlled, by adjusting the opening degree of the at least one shutters provided in the communication passage.
  • the optimal amount of heat transfer is changed based on conditions such as the outside temperature and the set temperature of each roller determined in accordance with the type of the yarns.
  • the power consumption is restrained while the temperature of the at least one preheating roller is suitably controlled, irrespective of the conditions.
  • the present invention is arranged such that the communication passage is a passage formed at a location different from a yarn path between the at least one preheating roller and the at least one conditioning roller.
  • the communication passage is provided to be independent from the yarn path, backward flow of heat from the low-temperature space to the high-temperature space due to an accompanied flow generated by the running yarns is prevented, with the result that heat is efficiently transferred from the high-temperature space to the low-temperature space. Furthermore, the movement of the at least one shutter is not obstructed by the yarns.
  • the present invention is preferably arranged such that the communication passage is formed between an inner surface of the thermal insulation box and the at least one partition portion.
  • the present invention is preferably arranged such that the at least one preheating roller and the at least one conditioning roller are disposed to protrude from a back surface portion toward a front surface portion of the thermal insulation box, and the communication passage is formed between an inner surface of a side face portion of the thermal insulation box and the at least one partition portion.
  • the communication passage is formed between the inner surface of the front surface portion (or the back surface portion) of the thermal insulation box and the at least one partition portion, when plural yarns are placed on the at least one preheating roller and the at least one conditioning roller so as to be lined up along the axial direction, the yarns which are close to the front surface portion (or the back surface portion) tend to be shaken due to an influence of air flowing in the communication passage, whereas the yarns close to the back surface portion (or the front surface portion) are unlikely to be shaken. In this way, there is a difference in yarn shaking. Such a difference is unfavorable because it causes the quality of yarns to be uneven.
  • the present invention is preferably arranged such that the at least one shutter is movable toward and away from the side face portion of the thermal insulation box.
  • the present invention is preferably arranged such that the front surface portion of the thermal insulation box is an openable door, and a sealing member is provided between the door and the at least one partition portion.
  • the present invention is preferably arranged such that the sealing member is attached to the at least one partition portion.
  • the sealing member is attached to the door, the sealing member must be accurately positioned in accordance with the position of the at least one partition portion. Meanwhile, when the sealing member is attached to the at least one partition portion, accurate positioning of the sealing member is unnecessary, and hence the attachment can be easy done.
  • the present invention is preferably arranged such that a shielding member is provided to extend toward the outer circumferential surface of the at least one conditioning roller from a location in the side face portion of the thermal insulation box, the location being on the conditioning roller side of the communication passage, the at least one conditioning roller rotating so that a part of the outer circumferential surface of the at least one conditioning roller, which opposes a leading end portion of the shielding member, moves away from the communication passage.
  • the present invention is preferably arranged such that a plurality of the at least one shutter are provided to be lined up in a direction in which air flows in the communication passage.
  • the flow amount and the way of flowing of air in the communication passage are finely controllable by adjusting the opening degrees of the shutters.
  • the present invention is preferably arranged such that a plurality of the at least one partition portion are provided between the low-temperature space and the high-temperature space to be lined up in a direction in which air flows in the communication passage.
  • the present invention is preferably arranged such that a plurality of the at least one preheating roller are provided to be lined up in the yarn running direction, the at least one partition portion is provided between a last preheating roller which is most downstream one of the preheating rollers in the yarn running direction and the at least one conditioning roller, and the at least one shutter is provided in the communication passage which causes the low-temperature space which is on the last preheating roller side of the at least one partition portion to communicate with the high-temperature space which is on the conditioning roller side of the at least one partition portion.
  • the last preheating roller is provided in the vicinity of the at least one conditioning roller.
  • the temperature of the last preheating roller tends to be increased by an influence of heat from the at least one conditioning roller.
  • the temperature of the last preheating roller must be controlled particularly accurately. For this reason, the present invention which makes it possible to suitably control the temperature is particularly effective for the last preheating roller.
  • FIG. 1 is a schematic diagram of a spun yarn take-up machine including the spun yarn drawing apparatus of the present embodiment.
  • the spun yarn take-up machine 1 is configured to draw, by a spun yarn drawing apparatus 3, yarns Y serially spun out from a spinning apparatus 2 and made of a solidified molten fibrous material such as polyester, and then to wind the yarns Y by a yarn winding apparatus 4. It is defined that the directions shown in FIG. 1 indicate the directions of the spun yarn take-up machine 1.
  • the spinning apparatus 2 is configured to generate the yarns Y by continuously spinning out a molten fibrous material such as polyester.
  • oil is applied at an oil guide 10.
  • the yarns Y are then sent to the spun yarn drawing apparatus 3 via a guide roller 11.
  • the spun yarn drawing apparatus 3 is an apparatus for drawing the yarns Y and is provided below the spinning apparatus 2.
  • the spun yarn drawing apparatus 3 includes plural godet rollers 31 to 35 housed in a thermal insulation box 20. The details of the spun yarn drawing apparatus 3 will be given later.
  • the yarns Y drawn by the spun yarn drawing apparatus 3 are sent to the yarn winding apparatus 4 via a guide roller 12.
  • the yarn winding apparatus 4 is an apparatus for winding the yarns Y and is provided below the spun yarn drawing apparatus 3.
  • the yarn winding apparatus 4 includes members such as a bobbin holder 13 and a contact roller 14.
  • the bobbin holder 13 is cylindrical in shape and extends away from the viewer of FIG. 1 .
  • the bobbin holder 13 is rotationally driven by an unillustrated motor.
  • bobbins B are attached along the axial direction to be side by side. By rotating the bobbin holder 13, the yarn winding apparatus 4 simultaneously winds the yarns Y onto the bobbins B, so as to produce packages P.
  • the contact roller 14 makes contact with the surfaces of the packages P to adjust the shape of each package P by applying a predetermined contact pressure to each package P.
  • FIG. 2 shows the spun yarn drawing apparatus 3 in a detailed manner.
  • the spun yarn drawing apparatus 3 includes the thermal insulation box 20 and plural (five in the present embodiment) godet rollers 31 to 35 housed in the thermal insulation box 20.
  • the thermal insulation box 20 is a box formed by a top surface portion 21, a right side portion 22, a lower right inclined portion 23, a left side portion 24, a lower left inclined portion 25, a back surface portion 26 (see FIG. 5 ), and a front surface portion 27 (see FIG. 5 ).
  • the front surface portion 27 is, for example, attached to the left side portion 24 by an unillustrated hinge, and is an openable door as the front surface portion 27 swings in the front-rear direction about the hinge.
  • an inlet 20a is formed to introduce yarns Y into the thermal insulation box 20.
  • an outlet 20b is formed to take the yarns Y out from the thermal insulation box 20.
  • the godet rollers 31 to 35 are heating rollers which are rotationally driven by an unillustrated motor and each includes an unillustrated heater.
  • the godet rollers 31 to 35 are disposed to protrude from the back surface portion 26 toward the front surface portion 27 of the thermal insulation box 20 as shown in FIG. 5 .
  • the godet rollers 31 to 35 rotate in the directions indicated by arrows in FIG. 2 .
  • the yarns Y introduced into the thermal insulation box 20 through the inlet 20a are serially wound onto the outer circumferential surfaces of the godet rollers 31 to 35, and are ultimately taken out from the thermal insulation box 20 through the outlet 20b.
  • the lower three godet rollers 31 to 33 are preheating rollers for preliminarily heating the yarns Y before drawing them.
  • the roller surface temperature of each of these rollers is arranged to be equal to or higher than the glass transition temperature of the yarns Y (e.g., set at about 80 degrees centigrade).
  • the upper two godet rollers 34 and 35 are conditioning rollers for thermally setting the drawn yarns Y.
  • the surface temperature of each of these rollers is arranged to be higher than the surface temperatures of the lower three godet rollers 31 to 33 (e.g., set at about 130 to 140 degrees centigrade).
  • the rotational speeds, i.e., yarn feeding speeds of the upper two godet rollers 34 and 35 are higher than those of the lower three godet rollers 31 to 33.
  • the godet rollers 31 to 33 will be referred to as preheating rollers, whereas the godet rollers 34 and 35 will be referred to as conditioning rollers.
  • the yarns Y introduced into the thermal insulation box 20 through the inlet 20a are, to begin with, preliminarily heated to a drawable temperature while being transferred by the preheating rollers 31 to 33.
  • the preliminarily-heated yarns Y are drawn on account of a difference in yarn feeding speed between the preheating roller 33 which is the most downstream one in the yarn running direction and the conditioning roller 34 which is the most upstream one in the yarn running direction.
  • the yarns Y are then further heated while being transferred by the conditioning rollers 34 and 35, with the result that the drawn state is thermally set.
  • the yarns Y having been drawn in this way go out from the thermal insulation box 20 through the outlet 20b.
  • flow control members 41 to 44 are disposed.
  • the flow control members 41 to 44 are plate-shaped members provided to protrude from the back surface portion 26 toward the front surface portion 27 of the thermal insulation box 20.
  • the flow control members 41 to 44 adjust the flow of air in the thermal insulation box 20.
  • the flow control members 41 to 44 are disposed so that the flow of air from the inlet 20a to the outlet 20b inside the thermal insulation box 20 is more or less along the yarn running direction.
  • shielding members 51 to 54 are disposed.
  • the shielding members 51 to 54 extend toward the outer circumferential surface of the conditioning roller 34 or 35, and a leading end portion of each shielding member is close to the outer circumferential surface of the conditioning roller 34 or 35.
  • an accompanied flow is generated in accordance with the running of the yarns Y. As the accompanied flow advances toward the downstream side in the yarn running direction while being amplified, a large amount of heat escapes through the outlet 20b, with the result that the heat keeping effect of the thermal insulation box 20 is deteriorated.
  • the shielding members 51, 52, and 54 are arranged to be swingable about their base parts in order not to obstruct yarn placement onto the conditioning rollers 34 and 35.
  • a heat shielding member may be provided between the last preheating roller 33 and the conditioning roller 35.
  • the heat shielding member By the heat shielding member, an influence of heat from the conditioning roller 35 is retrained, and hence excessive increase in the surface temperature of the last preheating roller 33 is restrained.
  • effective temperature increase of the last preheating roller 33 by utilizing heat from the conditioning roller 35 becomes impossible, with the result that the power consumption of the spun yarn drawing apparatus 3 is disadvantageously high.
  • an amount of heat transferred from the conditioning roller 35 to the last preheating roller 33 is controllable. With this arrangement, the power consumption of the spun yarn drawing apparatus 3 is restrained while the surface temperature of the last preheating roller 33 is maintained at the set temperature.
  • a flow control member 43 which also serves as the heat shielding member is disposed between the last preheating roller 33 and the conditioning roller 35.
  • a space which is below the flow control member 43 and where the last preheating roller 33 is provided is referred to as a low-temperature space 45
  • a space which is above the flow control member 43 and where the conditioning roller 35 is provided is referred to as a high-temperature space 46.
  • a communication passage 47 is formed to allow the low-temperature space 45 and the high-temperature space 46 to communicate with each other.
  • shutters 48 and 49 are provided to change the flow passage area of the communication passage 47. While materials of the flow control member 43 and the shutters 48 and 49 are not limited, these members are made of stainless steel in the present embodiment, in consideration of corrosion resistance and strength.
  • FIG. 3 is an enlarged view of the communication passage 47 and its surroundings.
  • FIG. 4(a) and FIG. 4(b) is a top view of the upper shutter 48.
  • FIG. 4(a) shows a state in which the upper shutter 48 is fully closed
  • FIG. 4(b) shows a state in which the upper shutter 48 is fully open.
  • the upper shutter 48 is depicted by thick lines.
  • the following portions are integrally formed: an upper partition portion 43a which extends in the left-right direction; a lower partition portion 43b which is provided below and spaced apart from the upper partition portion 43a and extends in the left-right direction; and a connecting portion 43c which connects a left end part of the upper partition portion 43a with a left end part of the lower partition portion 43b and extends in the up-down direction.
  • the portions 43a to 43c may be independent members.
  • a rear left corner portion of the upper partition portion 43a is arranged as a rectangular cutout portion 43d, and this cutout portion 43d is the upper end of the communication passage 47.
  • a rear left corner portion of the lower partition portion 43b is also arranged as a rectangular cutout portion, and this cutout portion is the lower end of the communication passage 47.
  • the communication passage 47 is a passage between the cutout portion 43d formed in the upper partition portion 43a and the cutout portion formed in the lower partition portion 43b.
  • the upper shutter 48 is a rectangular plate member and is attached to the upper surface of the upper partition portion 43a.
  • the upper shutter 48 is sized to be able to close the cutout portion 43d.
  • two unillustrated round holes are formed to be lined up in the front-rear direction. These round holes correspond to the two slots 43e formed in the upper partition portion 43a, respectively.
  • bolts 71 are inserted into the round holes of the upper shutter 48 and the slots 43e of the upper partition portion 43a, and nuts 72 are screwed onto the bolts 71.
  • the upper shutter 48 is fixed to the upper partition portion 43a.
  • the lower partition portion 43b and the lower shutter 49 are similarly arranged.
  • the lower shutter 49 is fixed to the lower partition portion 43b by bolts 73 and nuts 74.
  • the communication passage 47 is closed when the shutters 48 and 49 are moved leftward until making contact with the inner surface of the left side portion 24 of the thermal insulation box 20. Meanwhile, when the shutters 48 and 49 are moved rightward away from the left side portion 24, the communication passage 47 is gradually opened, and the communication passage 47 can be fully opened as shown in FIG. 4(b) . Furthermore, the flow amount and the way of flowing of air in the communication passage 47 are finely controllable by adjusting the opening degree of each of the shutters 48 and 49.
  • FIG. 5 is a cross section taken along the V-V line in FIG. 2 .
  • a front end portion of the flow control member 43 is arranged to be slightly separated from the closed door 27, as shown in FIG. 5 .
  • an airflow between the high-temperature space 46 and the low-temperature space 45 is generated through a gap between the upper partition portion 43a and the door 27 and a gap between the lower partition portion 43b and the door 27.
  • an amount of heat transferred from the high-temperature space 46 to the low-temperature space 45 may be larger than expected.
  • a sealing member 63 is attached to a front edge portion of the upper partition portion 43a in the present embodiment, as shown in FIGs. 4(a) and 4(b) and FIG. 5 .
  • the sealing member 63 is made of silicon or rubber, for example, and is shaped and sized so that the sealing member 63 is closely in contact with the inner surface of the door 27 when the door 27 is closed.
  • a gap is provided between the upper shutter 48 and the door 27 as shown in FIGs. 4(a) and 4(b) .
  • the shielding member 54 contributes to efficient transfer of heat from the high-temperature space 46 to the low-temperature space 45.
  • the shielding member 54 extends toward the outer circumferential surface of the conditioning roller 35 from a location in the left side portion 24 of the thermal insulation box 20, which location is on the conditioning roller 35 side of (i.e., above) the communication passage 47.
  • the conditioning roller 35 rotates clockwise so that a part A of the outer circumferential surface of the conditioning roller 35, which faces a leading end portion of the shielding member 54, moves away from the communication passage 47.
  • the flow amount of air flowing in the communication passage 47 i.e., an amount of heat transfer is controllable by suitably adjusting the opening degrees of the upper shutter 48 and the lower shutter 49 in accordance with conditions such as the type of the yarns Y and the outside temperature.
  • Two conflicting requirements, i.e., controllability of the last preheating roller 33 and power saving of the spun yarn drawing apparatus 3 are both satisfied with good balance, by adjusting the flow passage area of the communication passage 47 to transfer heat from the high-temperature space 46 to the low-temperature space 45 as much as possible, on condition that the temperature of the last preheating roller 33 does not exceed the set temperature.
  • FIG. 6 is a table showing a result of the verification experiment.
  • a set temperature of the preheating rollers 31 to 33 was 80°C.
  • a set temperature of the conditioning rollers 34 and 35 was 134°C.
  • the switch-ON percentage of a heater indicates the ratio of the time during which the heater is driven to maintain the surface temperature of each of the heating rollers 31 to 35 at the set temperature. Therefore the lower the switch-ON percentage of a heater is, the more the power saving is achieved. However, when the switch-ON percentage of a heater is 0, the temperature of the roller is likely to exceed the set temperature even if the heater is not driven.
  • the switch-ON percentage of a heater is therefore preferably equal to or higher than a predetermined percent (e.g., 1%) in consideration of the controllability. Temperatures of the low-temperature space 45 and the high-temperature space 46 were measured at locations L and H shown in FIG. 3 and FIG. 5 , respectively.
  • the temperature of the low-temperature space 45 was increased by at least 20°C and the switch-ON percentage of the heater of the last preheating roller 33 was decreased by about 7%, as compared to the case where the shutters were fully closed.
  • the switch-ON percentage of the heater of the last preheating roller 33 was decreased by about 7%, as compared to the case where the shutters were fully closed.
  • the switch-ON percentage of the heater of the last preheating roller 33 was 23.1% even when the shutters 48 and 49 were fully open. Therefore there is room for further improvement in power saving.
  • the flow passage area of the communication passage 47 may be slightly increased to increase the flow amount of air flowing in the communication passage 47. In any case, the experiment verifies that, by adjusting the opening degrees of the shutters 48 and 49 to change the flow passage area of the communication passage 47, it is possible to maximally achieve the power saving of the spun yarn drawing apparatus 3 while maintaining the controllability of the last preheating roller 33.
  • the flow amount of air flowing in the communication passage 47 is controlled and therefore an amount of heat transferred from the high-temperature space 46 to the low-temperature space 45 is controlled, by adjusting the opening degrees of the shutters 48 and 49 provided in the communication passage 47.
  • the optimal amount of heat transfer is changed based on conditions such as the outside temperature and the set temperature of each roller determined in accordance with the type of the yarns Y.
  • the power consumption is restrained while the temperature of the preheating roller 33 is suitably controlled, irrespective of the conditions.
  • the communication passage 47 is a passage which is formed at a location different from the yarn path between the preheating roller 33 and the conditioning roller 35. Because the communication passage 47 is provided to be independent from the yarn path, backward flow of heat from the low-temperature space 45 to the high-temperature space 46 due to an accompanied flow generated by the running yarns Y is prevented, with the result that heat is efficiently transferred from the high-temperature space 46 to the low-temperature space 45. Furthermore, the movement of the shutters 48 and 49 is not obstructed by the yarns Y.
  • the communication passage 47 is formed between the inner surface of the thermal insulation box 20 and the partition portions 43a and 43b. This facilitates air to flow along the inner surface of the thermal insulation box 20, with the result that heat is efficiently transferred from the high-temperature space 46 to the low-temperature space 45.
  • the preheating roller 33 and the conditioning roller 35 are provided to protrude from the back surface portion 26 toward the front surface portion 27 of the thermal insulation box 20, and the communication passage 47 is formed between the inner surface of the side face portion 24 of the thermal insulation box 20 and the partition portions 43a and 43b.
  • the communication passage 47 is formed between the inner surface of the front surface portion 27 (or the back surface portion 26) of the thermal insulation box 20 and the partition portions 43a and 43b, when plural yarns Y are placed on the preheating roller 33 and the conditioning roller 35 so as to be lined up along the axial direction, the yarns Y which are close to the front surface portion 27 (or the back surface portion 26) tend to be shaken due to an influence of air flowing in the communication passage 47, whereas the yarns Y close to the back surface portion 26 (or the front surface portion 27) are unlikely to be shaken. In this way, there is a difference in yarn shaking. Such a difference is unfavorable because it causes the quality of yarns Y to be uneven.
  • the shutters 48 and 49 are structured to be movable toward or away from the side face portion 24 of the thermal insulation box 20. This makes it possible to easily adjust the flow passage area of the communication passage 47 by the shutters 48 and 49.
  • the front surface portion 27 of the thermal insulation box 20 is arranged as an openable door, and the sealing member 63 is provided between the door 27 and the upper partition portion 43a.
  • the sealing member 63 is provided between the door 27 and the upper partition portion 43a as described above, the gap between the door 27 and the upper partition portion 43a is eliminated, and hence the control of the amount of heat transfer through the communication passage 47 can be accurately done.
  • the sealing member 63 is attached to the upper partition portion 43a.
  • the sealing member 63 must be accurately positioned in accordance with the position of the upper partition portion 43a. Meanwhile, when the sealing member 63 is attached to the upper partition portion 43a, accurate positioning of the sealing member 63 is unnecessary, and hence the attachment can be easy done.
  • the shielding member 54 is provided to extend toward the outer circumferential surface of the conditioning roller 35 from a location in the side face portion 24 of the thermal insulation box 20, which location is on the conditioning roller 35 side of the communication passage 47, and the conditioning roller 35 rotates so that the part A of the outer circumferential surface of the conditioning roller 35, which faces the leading end portion of the shielding member 54, moves away from the communication passage 47.
  • an accompanied flow generated by the running yarns Y is blocked by the shielding member 54, and hence escape of heat in the accompanied flow away from the communication passage 47 is restrained. As a result, heat is efficiently transferred from the high-temperature space 46 to the low-temperature space 45.
  • plural shutters 48 and 49 are provided to be lined up in the direction D in which air flows in the communication passage 47 (see FIG. 3 ). With this arrangement, the flow amount and the way of flowing of air in the communication passage 47 are finely controllable by adjusting the opening degree of each of the shutters 48 and 49.
  • plural partition portions 43a and 43b are provided between the low-temperature space 45 and the high-temperature space 46 to be lined up in the direction D in which air flows in the communication passage 47. Because the partition portions 43a and 43b are provided in this manner, heat insulation between the high-temperature space 46 and the low-temperature space 45 is improved, and hence control of the amount of heat transfer through the communication passage 47 is accurately done.
  • the partition portions 43a and 43b are provided between the last preheating roller 33 and the conditioning roller 35, whereas the shutters 48 and 49 are provided in the communication passage 47 which allows the low-temperature space 45 and the high-temperature space 46 to communicate with each other.
  • plural preheating rollers 31 to 33 are provided, because the yarns Y are serially heated by the preheating rollers 31 to 33, an amount of heat consumed by the heating of the yarns Y is small at the last preheating roller 33.
  • the last preheating roller 33 is provided in the vicinity of the conditioning roller 35. On this account, as compared to the other preheating rollers 31 and 32, the temperature of the last preheating roller 33 tends to be increased by an influence of heat from the conditioning roller 35.
  • the present invention which makes it possible to suitably control the temperature is particularly effective for the last preheating roller 33.
  • the communication passage 47 is formed between the left side portion 24 of the thermal insulation box 20 and the partition portions 43a and 43b (flow control member 43).
  • the location where the communication passage 47 is formed is not limited to this.
  • a communication passage 47 may be provided by forming openings in the partition portions 43a and 43b.
  • the number of communication passages may be two or more.
  • the communication passage 47 is formed at a location different from the yarn path.
  • the yarn path may be formed in the communication passage.
  • the shutters cannot be fully closed in this case, but the opening degrees of the shutters are adjustable as long as the yarn path is not blocked.
  • plural partition portions 43a and 43b are provided to be lined up in the direction D in which air flows in the communication passage 47, and plural shutters 48 and 49 are provided to be lined up in the direction D.
  • each of the number of partition portions and the number of shutters may be at least one.
  • the shutters 48 and 49 are structured to be movable in the left-right direction.
  • the specific structure of each shutter is not limited to this, and the shutter may be opened and closed in a swing manner, for example.
  • the flow passage area of the communication passage 47 is adjusted as an operator moves the shutters 48 and 49.
  • an unillustrated shutter driver for moving the shutters 48 and 49 may be provided, and the flow passage area of the communication passage 47 may be adjusted by this shutter driver.
  • problems such as the temperature of the last preheating roller 33 is uncontrollable is prevented by automatically adjusting the opening degrees of the shutters 48 and 49 in accordance with the temperature of a particular part (e.g., the temperature of the low-temperature space 45 or the surface temperature of the last preheating roller 33).
  • the sealing member 63 is attached to the upper partition portion 43a in order to eliminate the gap between the door 27 of the thermal insulation box 20 and the upper partition portion 43a.
  • the sealing member 63 may be attached to the door 27.
  • the sealing member 63 may be omitted.
  • heat is efficiently transferred from the high-temperature space 46 to the low-temperature space 45 because the shielding member 54 is provided.
  • the shielding member 54 may be omitted.
  • a communication passage may be provided between the right side portion 22 of the thermal insulation box 20 and the flow control member 42, and a shutter is provided in this communication passage.
  • a communication passage may be provided by forming an opening in the flow control member 42.
  • plural preheating rollers 31 to 33 and plural conditioning rollers 34 and 35 are provided.
  • plural preheating rollers and plural conditioning rollers are not prerequisite. Only at least one preheating roller and at least one conditioning roller are required.

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  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (10)

  1. Vorrichtung zum Ziehen von gesponnenem Garn (3), umfassend:
    mindestens eine Vorheizwalze (31 - 33), die Garne (Y) vor dem Ziehen erwärmt;
    mindestens eine Konditionierwalze (34, 35), die stromabwärts in einer Garnlaufrichtung der mindestens einen Vorheizwalze (31- 33) bereitgestellt ist und in Temperatur und Geschwindigkeit höher ist als die mindestens eine Vorheizwalze (31 - 33); und
    einen Wärmeisolationskasten (20), der die mindestens eine Vorheizwalze (31 - 33) und die mindestens eine Konditionierwalze (34, 35) einhaust,
    wobei die Garne (Y) zwischen der mindestens einen Vorheizwalze (31 - 33) und der mindestens einen Konditionierwalze (34, 35) gezogen werden, wobei die Vorrichtung zum Ziehen von gesponnenem Garn (3) weiter einschließt:
    mindestens einen Trennabschnitt (43a, 43b), der zwischen der mindestens einen Vorheizwalze (31 - 33) und der mindestens einen Konditionierwalze (34, 35) bereitgestellt ist; und
    einen Verbindungsdurchgang (47), der bewirkt, dass ein Niedertemperaturraum (45), der sich auf der Seite der Vorheizwalze (31 - 33) des mindestens einen Trennabschnitts (43a, 43b) befindet, mit einem Hochtemperaturraum (46), der sich auf der Seite der Konditionierwalze (34, 35) des mindestens einen Trennabschnitts (43a, 43b) befindet, in Verbindung steht;
    dadurch gekennzeichnet, dass mindestens ein Verschluss (48, 49) bereitgestellt ist, um den Strömungsdurchgangsbereich des Verbindungsdurchgangs (47) zu ändern, und
    wobei der Verbindungsdurchgang (47) ein Durchgang ist, der an einer Stelle gebildet ist, die sich von einem Garnweg zwischen der mindestens einen Vorheizwalze (31 - 33) und der mindestens einen Konditionierwalze (34, 35) unterscheidet.
  2. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach Anspruch 1, wobei der Verbindungsdurchgang (47) zwischen einer inneren Oberfläche des Wärmeisolationskastens (20) und dem mindestens einen Trennabschnitt (43a, 43b) gebildet ist.
  3. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach Anspruch 2, wobei
    die mindestens eine Vorheizwalze (31 - 33) und die mindestens eine Konditionierwalze (34, 35) so angeordnet sind, dass sie von einem hinteren Oberflächenabschnitt (26) hin zu einem vorderen Oberflächenabschnitt (27) des Wärmeisolationskastens (20) hervorstehen, und
    der Verbindungsdurchgang (47) zwischen einer inneren Oberfläche eines Seitenflächenabschnitts (24) des Wärmeisolationskastens (20) und dem mindestens einen Trennabschnitt (43a, 43b) gebildet ist.
  4. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach Anspruch 3, wobei der mindestens eine Verschluss (48, 49) hin zu dem und weg von dem Seitenflächenabschnitt (24) des Wärmeisolationskastens (20) bewegbar ist.
  5. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach Anspruch 3 oder 4, wobei
    der vordere Oberflächenabschnitt (27) des Wärmeisolationskastens (20) eine Tür (27) ist, die geöffnet werden kann, und
    ein Dichtungsglied (63) zwischen der Tür und dem mindestens einen Trennabschnitt (43a, 43b) bereitgestellt ist.
  6. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach Anspruch 5, wobei das Dichtungsglied (63) an dem mindestens einen Trennabschnitt (43a, 43b) angebracht ist.
  7. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach einem der Ansprüche 3 bis 6, weiter umfassend
    ein Abschirmglied (51 - 54), das sich hin zur äußeren Umfangsoberfläche der mindestens einen Konditionierwalze (34, 35) von einem Ort im Seitenflächenabschnitt (24) des Wärmeisolationskastens (20) erstreckt, wobei sich der Ort auf der Seite der Konditionierwalze (34, 35) des Verbindungsdurchgangs (47) befindet,
    wobei sich die mindestens eine Konditionierwalze (34, 35) so dreht, dass sich ein Teil der äußeren Umfangsoberfläche der mindestens einen Konditionierwalze (34, 35), die einem vorderen Endabschnitt des Abschirmglieds (51 - 54) gegenüberliegt, von dem Verbindungsdurchgang (47) wegbewegt.
  8. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach einem der Ansprüche 1 bis 7, wobei eine Vielzahl des mindestens einen Verschlusses (48, 49) bereitgestellt ist, um in einer Richtung aufgereiht zu sein, in der Luft in dem Verbindungsdurchgang (47) strömt.
  9. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach einem der Ansprüche 1 bis 8, wobei eine Vielzahl des mindestens einen Trennabschnitts (43a, 43b) zwischen dem Niedertemperaturraum (45) und dem Hochtemperaturraum (46) bereitgestellt ist, um in einer Richtung aufgereiht zu sein, in der Luft in dem Verbindungsdurchgang (47) strömt.
  10. Vorrichtung zum Ziehen von gesponnenem Garn (3) nach einem der Ansprüche 1 bis 9, wobei
    eine Vielzahl der mindestens einen Vorheizwalze (31 - 33) bereitgestellt ist, um in der Garnlaufrichtung aufgereiht zu sein,
    wobei der mindestens eine Trennabschnitt (43a, 43b) zwischen einer letzten Vorheizwalze (31 - 33), die in der Garnlaufrichtung die stromabwärtigste von den Vorheizwalzen (31 - 33) ist, und der mindestens einen Konditionierwalze (34, 35) bereitgestellt ist, und
    der mindestens eine Verschluss (48, 49) in dem Verbindungsdurchgang (47) bereitgestellt ist, was bewirkt, dass der Niedertemperaturraum (45), der sich auf der Seite der letzten Vorheizwalze (31 - 33) des mindestens einen Trennabschnitts (43a, 43b) befindet, mit dem Hochtemperaturraum (46), der sich auf der Seite der Konditionierwalze (34, 35) des mindestens einen Trennabschnitts (43a, 43b) befindet, in Verbindung steht.
EP19150067.7A 2018-01-29 2019-01-02 Spinngarneinzugsvorrichtung Active EP3517664B1 (de)

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JP2022008091A (ja) * 2020-06-24 2022-01-13 Ｔｍｔマシナリー株式会社 紡糸延伸装置
CN113265734B (zh) * 2021-06-16 2022-04-15 福建闽瑞新合纤股份有限公司 一种用于复合es短纤维生产的智能型纤维拉伸机构
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JPH0718771Y2 (ja) * 1989-06-26 1995-05-01 東レエンジニアリング株式会社 糸条熱処理装置
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JP5977153B2 (ja) * 2012-11-22 2016-08-24 Ｔｍｔマシナリー株式会社 紡糸巻取設備
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JP7053287B2 (ja) 2022-04-12
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JP2019131898A (ja) 2019-08-08

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