JP2013067895A - Spinning unit and spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spinning unit making a spinning part movable by an air actuator when performing maintenance and the like, while preventing a position of the spinning part with respect to a draft unit part and positions of a spindle and others constituting the spinning part from being dislocated when manufacturing a spun yarn.SOLUTION: A spinning unit comprises: a draft unit part 2 which drafts a fiber bundle F; a spinning part 3 which twists the fiber bundle F drafted by the draft unit part 2; an air actuator 38 which makes the spinning part 3 movable in a direction apart from the draft unit part 2; and an elastic member 39 which makes the spinning part 3 movable in a direction approaching the draft unit part 2.

Description

  The present invention relates to a spinning unit and a spinning machine.

  2. Description of the Related Art Conventionally, a spinning unit that produces a spun yarn by drafting a fiber bundle and twisting the drafted fiber bundle is known (for example, see Patent Document 1). Such a spinning unit is provided with a draft unit section for drafting the fiber bundle and a spinning section for twisting the drafted fiber bundle.

  The draft unit section includes a plurality of draft roller pairs. The draft roller pair is composed of a bottom roller that is rotated via a power mechanism and a top roller that is driven and rotated in contact with the bottom roller. Since the draft roller pair rotates with the bottom roller and the top roller holding the fiber bundle, the fiber bundle can be sent out. For this reason, the draft unit portion can draft the fiber bundle due to the difference in the feeding speed between the adjacent draft roller pairs.

  The spinning unit mainly includes a fiber guide that guides the fiber bundle to the spinning chamber, a nozzle block that guides air to the spinning chamber, and a spindle that guides the fiber bundle twisted in the spinning chamber to the outside. The spinning unit can twist the fiber bundle because the air guided to the spinning chamber forms a swirling airflow in the spinning chamber.

  In the spinning unit as described above, the spinning unit is disposed in the vicinity of the draft unit unit. This is because it is necessary to twist the fiber bundle before the fiber bundle drafted by the draft unit is disturbed. Accordingly, the gap formed between the draft unit portion and the spinning portion must be narrow, and maintenance and the like can be performed by separating the spinning portion from the draft unit portion. For this reason, there has been a spinning unit including an air actuator that can move the spinning unit (see, for example, Patent Document 2).

  However, in a spinning unit in which the spinning unit can be moved using an air actuator, the characteristics of the spun yarn may change due to malfunction of the air actuator (shrinkage failure due to air leakage, etc.). Specifically, the characteristics of the spun yarn may change when the position of the spinning unit with respect to the draft unit unit or the position of the spindle constituting the spinning unit is displaced due to a malfunction of the air actuator. there were.

JP 2011-99192 A JP 2011-38210 A

  The present invention has been made to solve such a problem. When performing maintenance or the like, the spinning unit can be moved by an air actuator, while the spinning unit for the draft unit unit is produced when the spun yarn is manufactured. It is an object of the present invention to provide a spinning unit in which the positions of the spindle and the position of the spinning section are not displaced.

  Next, means for solving this problem will be described.

  The first invention relates to a spinning unit that produces a spun yarn by drafting a fiber bundle and twisting the drafted fiber bundle. A spinning unit according to an embodiment of the present invention includes a draft unit portion that drafts a fiber bundle and a spinning portion that twists the drafted fiber bundle. The spinning unit includes an air actuator and an elastic member. The air actuator moves the spinning unit in a direction away from the draft unit. The elastic member allows the spinning unit to move in a direction close to the draft unit unit.

  The second invention relates to the spinning unit according to the first invention. The spinning unit of the present embodiment includes a fiber guide that guides the fiber bundle to the spinning chamber, a nozzle block that guides air to the spinning chamber, a spindle that guides the fiber bundle twisted in the spinning chamber to the outside, a fiber guide, It comprises a nozzle holder that supports the nozzle block and a spindle holder that supports the spindle. The air actuator can move the spindle holder in a direction away from the draft unit. The elastic member can move the spindle holder in a direction close to the draft unit.

  The third invention relates to the spinning unit according to the first or second invention. The draft unit portion of the present embodiment includes a plurality of draft roller pairs that send out a fiber bundle. The air actuator moves the spindle holder in a direction away from the draft roller pair disposed on the most downstream side in the drafting direction of the fiber bundle. The elastic member moves the spindle holder in a direction close to the draft roller pair.

  A fourth invention relates to a spinning unit according to any one of the first to third inventions. The elastic member of this embodiment is a spring.

  A fifth invention relates to a spinning unit according to any one of the first to fourth inventions. The spinning unit according to the embodiment of the present invention includes a latch portion that holds the spinning portion at a position spaced from the draft unit portion.

  The sixth invention relates to a spinning unit according to the fifth invention. The spinning unit of the present embodiment includes a pin. The latching portion of the present embodiment includes a hook that is hooked on the pin and a biasing member that biases the hook in a direction in which the hook is detached from the pin. In a state where the hook is hooked on the pin, when the spinning unit is moved away from the draft roller pair, the hook is detached from the pin by the urging member.

  A seventh invention is a spinning machine including a plurality of spinning units according to any one of the first to sixth inventions.

  As effects of the present invention, the following effects can be obtained.

  According to the first invention, when performing maintenance or the like, the spinning unit can be separated from the draft unit by the air actuator. For this reason, maintenance and the like can be easily performed. Further, when the spun yarn is manufactured, the spinning portion can be brought close to the draft unit portion by the elastic member. For this reason, it is possible to prevent the position of the spinning unit from deviating from the draft unit unit, and to stabilize the characteristics of the spun yarn.

  According to the second aspect of the invention, the spindle holder is moved by the air actuator when maintenance or the like is performed, so that the nozzle holder can also move together and the spinning unit can be separated from the draft unit. For this reason, maintenance and the like can be easily performed. Further, since the spindle holder is moved by the elastic member when the spun yarn is manufactured, the nozzle holder is also moved together, and the spinning unit can be brought close to the draft unit unit. For this reason, it is possible to prevent the position of the spinning unit from deviating from the draft unit unit, and to stabilize the characteristics of the spun yarn. In addition, since the elastic member urges the nozzle holder and spindle holder in the direction close to the draft unit, it is possible to prevent the position of the spindle, etc., constituting the spinning unit from shifting and to stabilize the characteristics of the spun yarn. It becomes.

  According to the third aspect of the invention, the distance between the draft roller pair arranged on the most downstream side in the drafting direction and the spinning unit is required to be accurate when the spun yarn is manufactured, but arranged on the most downstream side in the drafting direction. Since the distance between the draft roller pair and the spinning unit can be managed with high accuracy, the characteristics of the spun yarn can be stabilized.

  According to the fourth aspect of the invention, the spinning unit is reliably biased by the spring in the direction approaching the draft unit unit, so that the position of the spinning unit with respect to the draft unit unit can be prevented from shifting, and the properties of the spun yarn can be stabilized. It becomes possible. In addition, since the nozzle holder and the spindle holder are urged by the spring in the direction close to the draft unit portion, the position of the spindle constituting the spinning portion can be prevented from shifting, and the characteristics of the spun yarn can be stabilized. It becomes possible.

  According to the fifth aspect, the spinning unit can be held at a position separated from the draft unit by the latching unit. For this reason, it becomes possible to improve workability | operativity at the time of exchanging the bottom roller of a draft unit part, for example.

  According to the sixth invention, when the spinning unit is moved in the direction away from the draft roller pair in a state where the spinning unit is held by the latching unit, the urging member holds the spinning unit by the latching unit. Can be canceled. For this reason, it becomes possible to simplify the operation procedure at the time of manufacturing spun yarn.

  According to the seventh invention, the spinning machine has good maintainability and can produce spun yarn having stable characteristics.

FIG. 2 is a diagram illustrating an overall configuration of a spinning unit 100. The figure which shows the partial structure of the spinning part 3. FIG. The figure which shows the whole structure of the spinning part 3. FIG. The figure which shows the state from which the spinning part 3 was spaced apart from the draft unit part 2. FIG. The figure which shows the state which the spindle holder 37 spaced apart from the nozzle holder. The figure which shows the state which the spindle holder 37 approached the nozzle holder 34. As shown in FIG. The figure which shows the state which the spinning part 3 adjoined to the draft unit part 2. FIG. The figure which shows the state which hold | maintained the spinning part 3 in the position spaced apart from the draft unit part 2. FIG. The figure which shows the state which cancel | released holding | maintenance of the spinning part 3. FIG.

  First, the overall configuration of the spinning unit 100 will be briefly described.

  FIG. 1 is a diagram illustrating an overall configuration of the spinning unit 100. Black arrows in the figure indicate the feeding direction of the fiber bundle F and the spun yarn Y.

  The spinning unit 100 is a spinning machine that manufactures the spun yarn Y from the fiber bundle F and creates the package P. The spinning unit 100 includes a sliver supply unit 1, a draft unit unit 2, a spinning unit 3, a defect detection unit 4, a tension stabilization unit 5, a winding along the feeding direction of the fiber bundle F and the spun yarn Y. Part 6.

  The sliver supply unit 1 supplies the fiber bundle F (sliver) to the draft unit unit 2. The sliver supply unit 1 includes a sliver case 11 and a sliver guide (not shown). The fiber bundle F stored in the sliver case 11 is guided by the sliver guide and guided to the draft unit unit 2.

  The draft unit unit 2 drafts the fiber bundle F to make the thickness of the fiber bundle F uniform. The draft unit section 2 includes four pairs of draft rollers 21 and 22 including a back roller pair 21, a third roller pair 22, a middle roller pair 23, and a front roller pair 24 along the feeding direction of the fiber bundle F.・ 23 ・ 24 are provided. The draft roller pairs 21, 22, 23, and 24 are bottom rollers 21 A, 22 A, 23 A, and 24 A that are rotated through a power mechanism, and tops that are driven and rotated in contact with the bottom rollers 21 A, 22 A, 23 A, and 24 A It comprises rollers 21B, 22B, 23B, and 24B. Apron bands 23C and 23C are wound around the bottom roller 23A and the top roller 23B. The draft roller pairs 21, 22, 23, 24 rotate while the bottom rollers 21A, 22A, 23A (23C), 24A and the top rollers 21B, 22B, 23B (23C), 24B grip the fiber bundle F. The fiber bundle F can be sent out. For this reason, the draft unit part 2 can draft the fiber bundle F by the difference in the feeding speed of the draft roller pairs 21, 22, 23, 24 adjacent to each other.

  The spinning unit 3 manufactures the spun yarn Y by twisting the drafted fiber bundle F. The spinning unit 3 is disposed in the vicinity of the draft unit unit 2. For this reason, the spinning unit 3 can produce the spun yarn Y from the fiber bundle F that has been drafted moderately. The structure of the spinning unit 3 will be described later.

  The defect detection unit 4 detects a defect part of the manufactured spun yarn Y. More specifically, the defect detection unit 4 irradiates the spun yarn Y using a light emitting diode as a light source, and detects the amount of reflected light from the spun yarn Y. The defect detection unit 4 is connected to a control unit (not shown) via an analyzer. For this reason, the control unit can determine the presence or absence of a defect portion based on the detection signal from the defect detection unit 4. The defective part of the spun yarn Y includes a case where a part of the spun yarn Y is too thick (thick yarn) or too thin (thin yarn) and a foreign matter is present in the spun yarn Y. The defect detection unit 4 can employ a capacitance type sensor in addition to the optical sensor according to the present embodiment.

  The tension stabilizing unit 5 keeps the tension applied to the spun yarn Y moderately stable. The tension stabilizing unit 5 includes an unraveling member 51 and a roller 52. The unwinding member 51 rotates with the roller 52 when the tension applied to the spun yarn Y is low, and winds the spun yarn Y around the roller 52. The unwinding member 51 rotates independently of the roller 52 when the tension applied to the spun yarn Y is high, and unwinds the spun yarn Y wound around the roller 52. For this reason, the tension stabilizing unit 5 can keep the tension applied to the spun yarn Y moderately stable.

  The winding unit 6 winds the spun yarn Y and creates a package P. The winding unit 6 includes a driving roller 61 and a cradle (not shown). The driving roller 61 rotates the bobbin B that is rotatably held by the cradle. For this reason, the winding unit 6 can wind the spun yarn Y to create the package P. In addition, since the winding unit 6 traverses the spun yarn Y by a traverse device (not shown), the skew of the spun yarn Y in the package P is prevented.

  The above is the overall configuration of the spinning unit 100 according to an embodiment of the present invention. However, as long as the spinning unit 3 which is a characteristic part of the spinning unit 100 is provided, the detailed configuration is not limited. That is, if the spinning unit 3 which is a characteristic part of the spinning unit 100 is provided, the sliver supply unit 1, the draft unit unit 2, the defect detection unit 4, the tension stabilization unit 5, the winding unit 6, and other configurations and arrangements Not limited.

  Next, the structure of the spinning unit 3 will be described in detail.

  FIG. 2 is a diagram showing a partial structure of the spinning unit 3. Black arrows in the figure indicate the feeding direction of the fiber bundle F and the spun yarn Y. White arrows shown in the figure indicate the flow direction of the supplied air.

  The spinning unit 3 manufactures the spun yarn Y by twisting the fiber bundle F guided to the spinning chamber SC. The spinning unit 3 mainly includes a fiber guide 31, a nozzle block 32, and a spindle 33.

  The fiber guide 31 is a member constituting the spinning chamber SC. The fiber guide 31 guides the fiber bundle F drafted by the draft unit 2 to the spinning chamber SC. Specifically, the fiber guide 31 guides the fiber bundle F into the spinning chamber SC through a fiber passage 31h communicated with the spinning chamber SC.

  The nozzle block 32 is a member constituting the spinning chamber SC. The nozzle block 32 guides air sent from the air supply source to the spinning chamber SC. More specifically, the nozzle block 32 guides air into the spinning chamber SC through an air hole 32a communicating with the spinning chamber SC. The air holes 32a communicate with each other so that the air ejected from each air hole 32a flows in the same direction, so that a swirling airflow is generated in the spinning chamber SC.

  The spindle 33 is a member constituting the spinning chamber SC. The spindle 33 guides the fiber bundle F twisted in the spinning chamber SC, that is, the spun yarn Y, to the outside of the spinning chamber SC (referred to as spinning). More specifically, the spindle 33 guides the spun yarn Y to the outside of the spinning chamber SC through a fiber passage 33h communicated with the spinning chamber SC.

  Here, the spinning chamber SC will be described in more detail. The spinning chamber SC is a space surrounded by the fiber guide 31, the nozzle block 32, and the spindle 33. Specifically, the spinning chamber SC has a substantially conical spindle 33 inserted from one side with respect to a substantially conical through hole 32t provided in the nozzle block 32, and a fiber guide 31 attached to the other side. It is a space surrounded by.

  The spinning chamber SC is divided into a space SC1 formed between the fiber guide 31 and the spindle 33, and a space SC2 formed between the nozzle block 32 and the spindle 33. In the space SC1, the fibers constituting the fiber bundle F are inverted at the rear end by the swirling airflow (see the two-dot chain line in the figure). In the space SC2, the rear end portion of the inverted fiber is rotated by the swirling airflow (see the two-dot chain line in the figure). Then, the fibers rotated by the swirling airflow are wound around the fibers in the center part one after another. In this way, the spinning unit 3 can twist the fiber bundle F.

  The spinning unit 3 includes a needle 31n in the fiber guide 31. The needle 31n guides the fiber bundle F to the fiber passage 33h and prevents the twist of the fiber bundle F from being transmitted to the upstream side. However, the spinning unit 3 may have a configuration in which the fiber guide 31 does not include the needle 31n. In this case, the function of the needle 31n is realized by the edge of the spinning unit 3 and the downstream end of the fiber guide 31.

  FIG. 3 is a diagram illustrating the overall configuration of the spinning unit 3. Black arrows in the figure indicate the feeding direction of the fiber bundle F and the spun yarn Y.

  The fiber guide 31 and the nozzle block 32 are supported by a nozzle holder 34. More specifically, the fiber guide 31 is combined with the recess of the nozzle block 32. The nozzle block 32 is inserted into the through hole 34h of the nozzle holder 34, and is supported in a state where the hooking surface 32s of the nozzle block 32 and the upper surface 34s of the nozzle holder 34 are in contact with each other. The fiber guide 31 and the nozzle block 32 are fixed to the nozzle holder 34 by a nozzle cap 35 in which a claw portion 35h is hung on the fiber guide 31. The nozzle holder 34 is rotatably attached to the support shaft SH1.

  The spindle 33 is supported by a spindle holder 37. More specifically, the spindle 33 is supported in a state where it is combined with the convex portion of the spindle holder 37. The spindle 33 is fixed to the spindle holder 37 by a spindle cap 36 in which a claw portion 36h is hung on the spindle 33. The spindle holder 37 is also rotatably attached to the support shaft SH1.

  Further, the nozzle holder 34 and the spindle holder 37 are urged in a direction approaching each other by a tension spring 40. For this reason, the nozzle holder 34 and the spindle holder 37 can be rotated together by the biasing force of the tension spring 40 (see FIG. 4). However, when the nozzle holder 34 abuts against a stopper ST described later, only the spindle holder 37 can be rotated by the extension of the tension spring 40 (see FIG. 5).

  The air actuator 38 includes a cylinder 38a, a piston 38b, and a rod 38c. Air sent from an air supply source (not shown) is supplied to the cylinder 38a to slide the piston 38b. The rod 38c attached to the piston 38b slides together with the piston 38b to rotate the spindle holder 37. In the present embodiment, when air is supplied to the cylinder 38a, the air actuator 38 extends the rod 38c and rotates the spindle holder 37. That is, the air actuator 38 rotates the spindle holder 37 in a direction away from the draft unit 2 (see FIGS. 4 and 5).

  The elastic member 39 biases the spindle holder 37 in a direction opposite to the direction in which the spindle holder 37 is rotated by the air actuator 38. That is, the elastic member 39 moves the spindle holder 37 in the direction close to the draft unit 2 when the air actuator 38 is not operating (see FIGS. 6 and 7).

  Below, the operation | movement aspect of the spinning part 3 is demonstrated in detail.

  FIG. 4 is a diagram illustrating a state where the spinning unit 3 is separated from the draft unit unit 2. FIG. 5 is a view showing a state where the spindle holder 37 is separated from the nozzle holder 34. FIG. 6 is a view showing a state in which the spindle holder 37 is close to the nozzle holder 34. FIG. 7 is a diagram showing a state in which the spinning unit 3 is close to the draft unit unit 2. Black arrows in the figure indicate the rotation directions of the nozzle holder 34 and the spindle holder 37. Moreover, the white arrow shown in the figure has shown the urging | biasing direction of the elastic member 39. FIG.

  As described above, the air actuator 38 rotates the spindle holder 37 in a direction away from the draft unit 2. Then, as shown in FIG. 4, the nozzle holder 34 rotates integrally with the spindle holder 37 by the urging force of the tension spring 40.

  With this configuration, the spinning unit 100 can separate the spinning unit 3 from the draft unit unit 2 by the air actuator 38 when performing maintenance or the like. For this reason, the spinning unit 100 can be easily maintained and the like.

  If it demonstrates according to this embodiment, there exist the following effects. That is, since the spinning unit 100 rotates (moves) the spindle holder 37 by the air actuator 38 when performing maintenance or the like, the nozzle holder 34 also rotates (moves) together, and the draft unit unit 2 The spinning unit 3 can be separated from For this reason, the spinning unit 100 can be easily maintained and the like.

  The nozzle holder 34 can be rotated until it comes into contact with the stopper ST. Accordingly, when the nozzle holder 34 comes into contact with the stopper ST, the rotation of the nozzle holder 34 is restricted, and the nozzle holder 34 stops in a state of coming into contact with the stopper ST.

  Further, the air actuator 38 rotates the spindle holder 37. Then, as shown in FIG. 5, the spindle holder 37 is rotated only by the extension of the tension spring 40. That is, the spindle holder 37 is independently rotated in a direction away from the nozzle holder 34.

  With this configuration, the spinning unit 100 can separate the spindle 33 from the fiber guide 31 and the nozzle block 32. For this reason, the spinning unit 100 can easily replace the spindle 33 and the like.

  Further, as described above, the elastic member 39 rotates the spindle holder 37 in the direction approaching the draft unit 2 when the air actuator 38 is not operating. Then, as shown in FIG. 6, the spindle holder 37 is rotated only by the contraction of the tension spring 40. That is, the spindle holder 37 is independently rotated in the direction approaching the nozzle holder 34.

  Further, the elastic member 39 rotates the spindle holder 37. Then, as shown in FIG. 7, the nozzle holder 34 is pushed by the spindle holder 37 and rotates together with the spindle holder 37.

  With such a configuration, the spinning unit 100 can bring the spinning unit 3 close to the draft unit unit 2 by the elastic member 39 when the spun yarn Y is manufactured. For this reason, the spinning unit 100 can prevent the position of the spinning unit 3 from deviating from the draft unit unit 2, and can stabilize the characteristics of the spun yarn Y.

  If it demonstrates according to this embodiment, there exist the following effects. That is, in the spinning unit 100, when the spun yarn Y is manufactured, the spindle holder 37 is rotated (moved) by the elastic member 39. Therefore, the nozzle holder 34 is also rotated (moved) integrally, and the draft unit The spinning section 3 can be brought close to the section 2. For this reason, the position of the spinning unit 3 with respect to the draft unit unit 2 can be prevented from shifting, and the characteristics of the spun yarn Y can be stabilized. Further, since the elastic member 39 constantly urges the nozzle holder 34 and the spindle holder 37, it is possible to prevent the position of the spindle 33 and the like constituting the spinning unit 3 from being displaced, and the characteristics of the spun yarn Y manufactured by the spinning unit 100 can be prevented. Can be stabilized.

  In the spinning unit 100, the spinning unit 3 is configured to be separated from or close to the front roller pair 24.

  This is because the distance between the front roller pair (draft roller pair) 24 arranged on the most downstream side in the drafting direction and the spinning section 3 requires accuracy when the spun yarn Y is manufactured. This is because there is an advantage in bringing the spinning unit 3 away from or close to the roller pair 24. Therefore, the spinning unit 100 can manage the distance between the front roller pair (draft roller pair) 24 arranged at the most downstream side in the drafting direction and the spinning unit 3 with high accuracy, and stabilize the characteristics of the spun yarn Y. It becomes possible.

  Further, in the spinning unit 100, the elastic member 39 is a spring. In the spinning unit 100, a tension spring is used, but the type of spring is not limited. Other elastic bodies can be used as the elastic member 39 as long as it is an elastic body that can urge the spinning section 3 in the direction of approaching the draft unit section 2.

  With such a configuration, the spinning unit 100 surely biases the spinning unit 3 in the direction of approaching the draft unit unit by the elastic member 39 that is a spring, so that the position of the spinning unit 3 with respect to the draft unit unit 2 is shifted. Can be prevented. As a result, the characteristics of the spun yarn Y produced by the spinning unit 100 can be stabilized. Further, since the nozzle holder 34 and the spindle holder 37 are surely urged by the elastic member 39 which is a spring, it is possible to prevent the positions of the spindle 33 and the like constituting the spinning unit 3 from being displaced. As a result, the characteristics of the spun yarn Y produced by the spinning unit 100 can be stabilized.

  Next, other characteristic points of the spinning unit 100 will be described.

  FIG. 8 is a view showing a state in which the spinning unit 3 is held at a position separated from the draft unit unit 2. FIG. 9 is a view showing a state where the holding of the spinning unit 3 is released. A black arrow in the figure indicates the rotation direction of the latching portion 7. A white arrow in the drawing indicates the rotation direction of the spinning unit 3.

  The spinning unit 100 includes a latching portion 7 that can hold the spinning portion 3 at a position separated from the draft unit portion 2. The latch portion 7 includes a lever 7a and a hook 7b.

  The lever 7 a is rotatably supported by a support shaft SH <b> 2 provided on the spindle holder 37. The operator can turn the hook 7b by turning the lever 7a. That is, the lever 7a and the hook 7b are integrally formed.

  The hook 7 b is rotatably supported by a support shaft SH <b> 2 provided on the spindle holder 37. When the hook 7b rotates about the support shaft SH2, the pin Pi provided on the nozzle holder 34 can be hooked (see FIG. 8).

  With this configuration, the spinning unit 100 can hold the spinning unit 3 at a position separated from the draft unit unit 2. For this reason, the spinning unit 100 can improve workability when the bottom roller 24A of the draft unit unit 2 is replaced, for example.

  Furthermore, the latching portion 7 according to the present embodiment includes an urging member 7c. The urging member 7c urges the hook 7b in a direction away from the pin Pi. That is, the urging member 7c urges the hook 7b in a direction opposite to the rotation direction in which the hook 7b can hook the pin Pi.

  With this configuration, when the spinning unit 3 is rotated (moved) in the direction away from the draft roller pair 2, the urging member 7 c releases the holding of the spinning unit 3 by the latching unit 7. Yes (see FIG. 9). For this reason, the spinning unit 100 can simplify the operation procedure when the spun yarn Y is manufactured.

  Conventionally, a spinning machine having a plurality of spinning units has been required to be improved in maintainability. Conventionally, a spinning machine including a plurality of spinning units has been required to have the same quality for the spun yarn Y produced by each spinning unit. By providing a plurality of spinning units 100 according to the embodiment of the present invention, the spinning machine 200 can produce a spun yarn Y with good maintainability and stable characteristics.

  The spinning unit 100 and the spinning machine 200 according to the embodiment of the present invention have been described above. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, the spinning unit 100 is configured to draw the spun yarn Y from the spinning unit 3 by the tension stabilizing unit 5, but is not limited to this configuration. A delivery roller and a nip roller may be provided between the spinning unit 3 and the tension stabilizing unit 5, and the spun yarn Y may be pulled out from the spinning unit 3 by these rollers.

  As described in JP 2011-38210 A, the spinning unit 3 may be a pair of air jet nozzles that apply twists in opposite directions to the fiber bundle F. In this case, the upstream air jet nozzle is held by the nozzle holder 34, and the downstream air jet nozzle is held by the spindle holder 37.

1 Sliver supply section 2 Draft unit section 24 Front roller pair (draft roller pair)
24A Bottom roller 24B Top roller 3 Spinning section 31 Fiber guide 32 Nozzle block 33 Spindle 34 Nozzle holder 37 Spindle holder 38 Air actuator 39 Elastic member 40 Tension spring 4 Defect detection section 5 Tension stabilization section 6 Winding section 7 Latching section 7a Hook 7c Energizing member 100 Spinning unit 200 Spinning machine F Fiber bundle Y Spinning yarn

Claims (7)

A draft unit for drafting the fiber bundle;
A spinning section that twists the fiber bundle drafted by the draft unit section;
An air actuator for moving the spinning unit in a direction away from the draft unit unit;
A spinning unit comprising: an elastic member capable of moving the spinning unit in a direction close to the draft unit unit. The spinning section includes a fiber guide for guiding the fiber bundle to the spinning chamber,
A nozzle block for guiding air to the spinning chamber;
A spindle for guiding the fiber bundle twisted in the spinning chamber to the outside;
A nozzle holder for supporting the fiber guide and the nozzle block;
A spindle holder for supporting the spindle,
The air actuator is capable of moving the spindle holder in a direction away from the draft unit;
The spinning unit according to claim 1, wherein the elastic member is capable of moving the spindle holder in a direction close to the draft unit portion. The draft unit portion includes a plurality of draft roller pairs for sending out a fiber bundle,
The air actuator moves the spindle holder in a direction away from the draft roller pair disposed on the most downstream side in the draft direction of the fiber bundle,
The said elastic member moves the said spindle holder in the direction close | similar to the said draft roller pair arrange | positioned in the most downstream side of the draft direction of a fiber bundle, The Claim 1 or Claim 2 characterized by the above-mentioned. Spinning unit.   The spinning unit according to any one of claims 1 to 3, wherein the elastic member is a spring.   The spinning unit according to any one of claims 1 to 4, further comprising a latch portion that holds the spinning portion at a position separated from the draft unit portion. The spinning section includes a pin,
The hook is a hook that is hooked on the pin;
An urging member that urges the hook in a direction away from the pin;
The hook is detached from the pin by the biasing member when the spinning unit is moved in a direction away from the draft roller pair in a state where the hook is hooked on the pin. 5. The spinning unit according to 5. A spinning machine comprising a plurality of the spinning units according to any one of claims 1 to 6.

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