CN111206313A - Flyer of coarse spinning machine - Google Patents
Flyer of coarse spinning machine Download PDFInfo
- Publication number
- CN111206313A CN111206313A CN201911132840.2A CN201911132840A CN111206313A CN 111206313 A CN111206313 A CN 111206313A CN 201911132840 A CN201911132840 A CN 201911132840A CN 111206313 A CN111206313 A CN 111206313A
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- Prior art keywords
- flyer
- presser
- presser finger
- center
- finger
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/24—Flyer or like arrangements
- D01H7/26—Flyer constructions
- D01H7/30—Flyer constructions with guide channels formed in legs, e.g. slubbing flyers
- D01H7/32—Flyer constructions with guide channels formed in legs, e.g. slubbing flyers with pressing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention provides a flyer of a coarse spinning machine, which can inhibit the eccentric wear of a lining of a flyer presser. The flyer of the coarse spinning machine of the present invention comprises: a flyer body (10) having a pair of flyer arms (21, 22); a presser finger (14) disposed at a lower end (26a) of a yarn guide tube (26) protruding below a lower end of one of the flyer arms (21); and a bushing fixed to a lower end (26a) of the yarn guide tube (26) and rotatably supporting the presser finger (14). The bush is provided only on the lower end side of the flyer arm (21), and the flyer presser (14) has a cutout portion (35) as a weight adjustment portion for bringing the center of gravity of the flyer presser closer to the center side in the center axial direction of the bush.
Description
Technical Field
The invention relates to a flyer of a coarse spinning machine.
Background
A flyer is provided in a roving frame for winding a roving yarn around a bobbin. As disclosed in patent document 1, for example, a flyer of a roving frame includes: a flyer body having a pair of flyer arms, and a presser finger.
In this roving frame, when the roving is wound around the bobbin, the flyer body rotates at a high speed, and the presser finger rotates around the bobbin based on the rotation. At this time, the paddle portion of the presser finger is pressed against the outer peripheral surface of the bobbin or the surface of the roving wound around the bobbin.
The presser finger is rotatably attached to one of the flyer arm sides using a bush. When the flyer body rotates at a high speed as described above, the centrifugal force associated therewith generates a rotational force in the flyer presser, and the paddle portion of the flyer presser is pressed against the outer peripheral surface of the bobbin or the like by the rotational force.
Patent document 1: japanese examined patent application publication No. 57-158780
However, if the presser finger is supported by the bushing, the centrifugal force acting on the presser finger due to the rotation of the flyer body is received by the bushing. At this time, a load is applied to the liner by a centrifugal force acting on the presser finger.
Conventionally, a load applied to a bushing is an uneven load (hereinafter, also referred to as an "offset load") having different magnitudes at one end (upper end) and the other end (lower end) of the bushing in a central axial direction. The offset load becomes a cause of premature bushing wear. In addition, when an offset load is applied to the bushing, the bushing is subjected to offset wear. If the bush is worn unevenly, the presser finger is inclined with time as the wear of the bush progresses. As a result, the contact position and pressing force of the paddle portion with respect to the outer peripheral surface of the bobbin or the like change, and the quality of the roving may deteriorate.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a flyer of a rough spinning machine capable of suppressing uneven wear of a liner of a presser finger.
The flyer of the coarse spinning machine of the present invention comprises: a flyer body having a pair of flyer arms; a presser finger disposed at a lower end portion of the yarn guide tube protruding downward from a lower end portion of one of the pair of flyer arms; and a bushing fixed to a lower end portion of the yarn guide tube and rotatably supporting the presser finger, the presser finger including a weight adjustment portion for bringing a position of a center of gravity of the presser finger closer to a center side in a center axial direction of the bushing.
In the flyer of the rough spinning machine according to the present invention, the presser finger may have a balance weight, and the weight adjusting portion may be formed of a notch formed in the balance weight.
In the flyer of the rough spinning machine according to the present invention, the presser finger may include a presser finger arm and a presser finger blade provided at a tip end portion of the presser finger arm, and the presser finger arm may include a bent portion or an inclination for bringing a position of the presser finger blade closer to a center side in the central axial direction of the liner.
According to the present invention, uneven wear of the liner of the presser finger can be suppressed.
Drawings
Fig. 1 is a partially cut-away front view showing a flyer of a rough spinning machine of a first embodiment.
Fig. 2 is a partial cutaway view showing the structure of the presser finger provided in the flyer shown in fig. 1.
Fig. 3 is a partial cutaway view showing the structure of the presser finger of the reference form.
Fig. 4 is a partial cutaway view showing the structure of the presser finger of the second embodiment.
Fig. 5 is a diagram showing a modification of the second embodiment.
Description of reference numerals
1 … flyer, 21, 22 … flyer arm, 14 … flyer presser finger, 32 … flyer presser finger arm, 32a … bend, 33 … flyer presser finger blade, 34 … counterweight, 35 … cut-out portion (weight adjustment portion), 39 … second cut-out portion (weight adjustment portion), 42 … bush, G … flyer presser finger center of gravity position.
Detailed Description
< first embodiment >
Fig. 1 is a partially cut-away front view showing a flyer of the rough spinning machine according to the first embodiment.
The flyer 1 of the rough spinning machine according to the first embodiment is used for winding a roving around a bobbin, not shown, and includes a flyer body 10, a presser finger 14, and a balance weight 16, as shown in fig. 1.
The flyer body 10 is provided to be rotatable about an axis J1 as a rotation center of the flyer 1 by a flyer driving device not shown. In the roving frame, the axis J1 is set in the vertical direction in the state where the roving frame is installed. In this specification, the arrangement and positional relationship of each part are determined with the upper side in the vertical direction as the upper side and the lower side in the vertical direction as the lower side in the installation state of the roving frame.
The flyer body 10 has a spindle portion 18, a protrusion 20, and a pair of flyer arms 21 and 22. The flyer body 10 is made of, for example, an integrally cast product made of an aluminum alloy. The spindle part 18 is provided at an upper part of the flyer body 10. The protrusion 20 is provided between the mandrel portion 18 and the pair of spindle blades 21 and 22. A flyer spindle 25 is mounted on the protrusion 20. The flyer spindle 25 extends downwardly from the tab 20 along the axis J1. The flyer spindle 25 is disposed between the pair of flyer arms 21, 22.
The pair of ingot arms 21 and 22 are branched from the protrusion 20 into one and the other and extend downward. As the flyer body 10 rotates, the pair of flyer arms 21, 22 rotate about the axis J1. One of the pair of spindle arms 21, 22 has a guide tube 26 of an elongated tubular shape provided inside the spindle arm 21.
A part of the yarn guide tube 26 is disposed inside one of the spindle blades 21. When the main body 10 of the flyer is manufactured using a mold, not shown, the bobbin 26 is placed in the mold, and molten metal is poured into the bobbin portion 18, the protrusion 20, and the flyer arm 21. The yarn guide tube 26 guides the roving yarn (not shown) introduced into the mandrel portion 18 of the flyer body 10 to the presser finger 14 through the inside of the protrusion 20 and the flyer arm 21. The guide tube 26 is bent so as to follow the shape of the spindle blade arm 21.
The presser finger 14 is disposed on one side of the presser arm 21. The presser finger 14 is disposed at the lower end 26a of the yarn guide tube 26 on the side of one of the arms 21. The lower end 26a of the yarn guide tube 26 protrudes below the lower end 21a of the flyer arm 21, and the presser finger 14 is rotatably attached to the protruding portion using a bush (described later). Further, the presser finger 14 is provided to be rotatable about the axis J2.
The balance weight 16 balances the weight of the entire flyer 1 so that the position of the center of gravity of the flyer 1 coincides with the rotation center of the flyer 1. The balance weight 16 has the same weight as the presser finger 14 so that the weight balance of the flyer 1 about the axis J1 is substantially equal on the side of one flyer arm 21 and the side of the other flyer arm 22. The counterweight 16 is mounted to the lower end of the flyer arm 22. Further, the balance weight 16 is constituted by a plurality of columnar weights 16 a.
The presser finger 14 includes: a presser finger body 31, a presser finger arm 32, a presser finger paddle 33 provided at the tip end of the presser finger arm 32, and a balance weight 34. In order to prevent the presser finger itself from coming off, a stopper 36 and a nut 37 are provided at a portion where the presser finger 14 is disposed. The stopper 36 is fixed to the guide tube 26. The stopper 36 is disposed to protrude radially outward of the outer peripheral surface of the yarn guide tube 26. The nut 37 is fixed to the presser finger body 31 or the counterweight 34 by a bolt 38. The presser finger 14 is not detached by its own weight by hooking the nut 37 on the upper surface of the stopper 36.
The presser finger body 31 is supported rotatably about an axis J2 by a bushing to be described later. Presser finger arm 32 extends from presser finger body 31 to presser finger paddle 33. The roving (not shown) guided out from the lower end 26a of the yarn guide tube 26 is wound around the presser finger arm 32 toward the presser finger paddle 33. The presser finger paddle 33 is pressed against the outer peripheral surface of the bobbin or against the surface of the roving wound around the bobbin when the flyer body 10 rotates about the axis J1.
The counterweight 34 is formed integrally with the presser finger body 31. The counterweight 34 is a weight for setting the position of the center of gravity of the presser finger 14 to be offset from the center of rotation of the presser finger 14. If the position of the center of gravity of the presser finger 14 is set to be offset from the center of rotation of the presser finger 14, a centrifugal force is generated at the position of the center of gravity of the presser finger 14 when the flyer body 10 rotates. Thus, a rotational force is applied to the presser finger 14 by centrifugal force. This allows the presser finger paddle 33 of the presser finger 14 to be pressed against the outer peripheral surface of the bobbin or against the surface of the roving wound around the bobbin.
Fig. 2 is a partial cutaway view showing the structure of the presser finger provided in the flyer shown in fig. 1.
As shown in fig. 2, the presser finger body 31 of the presser finger 14 is provided with a shaft hole 41. The lower end 26a (see fig. 1) of the yarn guide tube 26 is inserted into the shaft hole 41. A bush 42 is disposed inside the shaft hole 41. The bushings 42 support the presser finger 14 to be rotatable. The bush 42 is fixed to the lower end 26a of the yarn guide tube 26 inserted into the shaft hole 41 by press fitting or the like. Thereby, the bush 42 is disposed on the outer peripheral side of the yarn guide tube 26. The bush 42 is formed of, for example, a slide bearing, and the presser finger body 31 is rotatably supported by the bush 42. The bush 42 is provided only on the lower end side of the ingot leg 21.
The flyer presser usually has a counterweight of short and long types depending on the length of the counterweight. The short counter weight is disposed on the lower end side of the flyer arm together with the presser body. Therefore, in the presser finger including the short counter weight, the bush may be provided only on the lower end side of the flyer arm disposed on the flyer body. In contrast, the long counter weights are arranged to be long distributed from the flyer body to the upper end side of the flyer arm. Therefore, in the presser finger including the long counterweight, it is necessary to provide a bush not only on the lower end side of the flyer arm disposed on the flyer body but also on the upper end side of the flyer arm disposed on the upper end portion of the counterweight.
As shown in fig. 1, the counterweight 34 of the presser finger 14 according to the first embodiment is disposed on the lower end side of the flyer arm 21 together with the presser finger body 31, and is not disposed on the upper end side of the flyer arm 21. That is, the counter weight 34 corresponds to a short counter weight. Therefore, the bush 42 is provided only on the lower end side of the ingot leg 21, and is not provided on the upper end side of the ingot leg 21.
In the first embodiment, the cutout portion 35 is formed in the counterweight 34. The cutout portion 35 is a portion constituting a weight adjustment portion for bringing the center of gravity of the presser finger 14 closer to the center side in the center axial direction of the bush 42. The notch 35 is formed on the opposite side of the presser finger arm 32 and the presser finger paddle 33, sandwiching the axis J2 indicating the center axis of the bushing 42. The notch 35 is formed by cutting out a part 34a of the counterweight 34 on the lower end side of the presser finger 14 disposed on the presser finger arm 32.
Here, the weight adjustment amount (weight reduction amount) of the counterweight 34 by the cut-out portion 35 is preferably an amount corresponding to the weight of the presser finger paddle 33, and more preferably an amount corresponding to the weight of the presser finger arm 32 and the presser finger paddle 33 together. In the first embodiment, the cut-out portion 35 is formed by cutting out a part 34a of the counterweight 34 so that at least the weight equivalent to the weight of the presser finger paddle 33 is subtracted from the counterweight 34. In the first embodiment, as a preferable example, the center of gravity G of the presser finger 14 in the vertical direction is set at the center of the central axis of the bush 42.
Next, the operation and effect of the presser finger 14 according to the first embodiment will be described by referring to the first embodiment and a reference form as a comparative object.
Fig. 3 is a partial cutaway view showing the structure of the presser finger of the reference form.
In the presser finger 14 shown in fig. 3, the cut-out portion 35 is not formed in the counterweight 34. Therefore, the center of gravity G of the presser finger 14 is located near the lower side of the center axis of the bushing 42. Therefore, when the centrifugal force F acts on the center of gravity position G of the presser finger 14 due to the rotation of the flyer body 10, a relatively small load P1 is applied to the upper end portion of the liner 42 on the side away from the center of gravity position G, and a relatively large load P2 is applied to the lower end portion of the liner 42 on the side close to the center of gravity position G. Therefore, the load applied to the bush 42 is an uneven load, i.e., an offset load, having different magnitudes at one end (upper end) and the other end (lower end) of the bush 42 in the central axial direction.
On the other hand, in the presser finger 14 of the first embodiment, as shown in fig. 2, the cutout portion 35 is formed in the counterweight 34, and thereby the barycentric position G of the presser finger 14 is set closer to the center side in the center axial direction of the bush 42 than in the case of the reference form. Therefore, when the centrifugal force F acts on the gravity center position G of the presser finger 14 due to the rotation of the flyer body 10, the load P1 is applied to the upper end portion of the bush 42, and the load P2 identical to the load P1 is applied to the lower end portion of the bush 42. That is, the load applied to the bush 42 by the centrifugal force F is equalized at one end and the other end in the center axial direction of the bush 42.
Therefore, according to the flyer 1 of the coarse spinning machine of the first embodiment, the uneven wear of the liner 42 can be suppressed. Further, by uniformizing the load applied to the bush 42, the progress of the wear of the bush 42 can be delayed, and the life of the bush 42 can be prolonged. In addition, the inclination of the presser finger 14 with time due to the uneven wear of the bush 42 can be suppressed. This can reduce the contact position of the presser finger paddle 33 with respect to the outer peripheral surface of the bobbin or the change in pressing force, and can stabilize the quality of the roving yarn.
< second embodiment >
Fig. 4 is a partial cutaway view showing the structure of the presser finger of the second embodiment. In the second embodiment, the same or corresponding components as those illustrated in the first embodiment are denoted by the same reference numerals, and redundant description thereof is omitted.
In the second embodiment, the shape of the presser finger arm 32 and the shape of the counterweight 34 are different from those of the first embodiment. Specifically, as shown in fig. 4, the presser finger arm 32 has a bent portion 32a at a middle in the arm length direction. The bent portion 32a is formed so that the presser finger paddle 33 is positioned closer to the center side in the central axial direction of the liner 42. Therefore, the bent portion 32a of the presser finger arm 32 is bent upward such that the tip end side of the presser finger arm 32 is located above the base end side of the presser finger arm 32. In the second embodiment, as a preferable example, the position of the presser finger paddle 33 is set at the center in the center axial direction of the liner 42. Specifically, the center of the presser finger paddle 33 is disposed on a horizontal line J3 extending from the center of the central axis of the liner 42.
On the other hand, as the weight adjustment portion, a second cutout portion 39 is formed in the counterweight 34 in addition to the cutout portion 35 similar to the first embodiment. The second cut portion 39 is a portion in which a part of the counterweight 34 is cut out so that the center of gravity G of the presser finger 14 does not deviate from the center in the center axial direction of the bushing 42 even if the position of the presser finger paddle 33 is moved upward by the bent portion 32a of the presser finger arm 32. The second notch portion 39 is formed on the same side as the notch portion 35 with reference to the position of the axis J2. The second cut portion 39 is formed on the upper end side of the counterweight 34 on the opposite side of the cut portion 35.
In the flyer of the coarse spinning machine according to the second embodiment, a rotational force is applied to the presser finger 14 by a centrifugal force accompanying the rotation of the flyer body 10, and when the presser finger paddle 33 is pressed against the outer peripheral surface of the bobbin or the like by the rotational force, the presser finger paddle 33 receives a reaction force F1 generated by the pressing. The bush 42 is subjected to load loads F2 and F3 by the reaction force F1. At this time, when the position of the presser finger paddle 33 is located closer to the center side in the center axial direction of the bushing 42 by the bent portion 32a of the presser finger arm 32, the difference between the load F2 applied to the upper end portion of the bushing 42 by the reaction force F1 and the load F3 applied to the lower end portion of the bushing 42 by the reaction force F1 becomes small. This can equalize not only the load applied to the bush 42 by the centrifugal force but also the load applied to the bush 42 by the reaction force F1. Therefore, uneven wear of the bush 42 can be more effectively suppressed.
< modification example et al >
The technical scope of the present invention is not limited to the above-described embodiments, and includes various modifications and improvements within the scope of deriving specific effects obtained by the constituent elements and combinations thereof of the present invention.
For example, in the above embodiment, the cutout portion 35 or the second cutout portion 39 is formed in such a shape that a part of the counterweight 34 is obliquely cut out, but the shape of the cutout portion may be any shape. Further, a hole for reducing the weight may be formed in the lower portion of the counterweight 34 as the weight adjustment portion. Alternatively, the presser finger 14 may be formed of two bodies, an upper body and a lower body, and the lower portion may be formed of a light material lighter than the upper portion as the weight adjustment portion. Further, as the weight adjustment portion, a shape (a shape in which the weight of the upper portion is increased) may be provided in which the center of gravity position G is located closer to the center side in the center axial direction of the bush 42 in the upper portion of the counterweight 34, or a separate weight may be added to the upper portion.
In the second embodiment, the bent portion 32a is formed in the presser finger arm 32 in order to position the presser finger paddle 33 closer to the center side in the central axial direction of the bushing 42, but in addition to this, as shown in fig. 5, for example, the entire presser finger arm 32 may be inclined with respect to the horizontal line J3 such that the tip end side of the presser finger arm 32 is located above the base end side. In the case where the bent portion 32a is provided or the presser finger arm 32 is inclined, the weight adjusting portion functions to bring the gravity center position G of the presser finger 14 closer to the center side in the center axis direction of the bushing 42 by itself, and therefore the notch portion 35 may not be provided.
Claims (3)
1. A flyer of a roving spinning machine is characterized by comprising:
a flyer body having a pair of flyer arms;
a presser finger disposed at a lower end portion of the yarn guide tube protruding downward from a lower end portion of one of the pair of flyer arms; and
a bushing fixed to a lower end portion of the yarn guide tube and rotatably supporting the presser finger,
the presser finger has a weight adjustment portion for bringing the position of the center of gravity of the presser finger closer to the center side in the center axial direction of the bushing.
2. Flyer of a coarse spinning machine according to claim 1,
the flyer presser has a balancing weight,
the weight adjustment portion is formed of a notch formed in the counterweight.
3. Flyer of a coarse spinning machine according to claim 1 or 2,
the flyer presser has a flyer presser arm and a flyer presser paddle provided at the tip of the flyer presser arm,
the presser finger arm has a curved portion or an inclination for bringing the position of the presser finger blade closer to the center side in the central axial direction of the bushing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018217914A JP7110934B2 (en) | 2018-11-21 | 2018-11-21 | Rover Flyer |
| JP2018-217914 | 2018-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111206313A true CN111206313A (en) | 2020-05-29 |
Family
ID=70785355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911132840.2A Pending CN111206313A (en) | 2018-11-21 | 2019-11-19 | Flyer of coarse spinning machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7110934B2 (en) |
| CN (1) | CN111206313A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516920A (en) * | 1978-07-17 | 1980-02-06 | Ichikawa Tekkosho:Kk | Device for winding up spun yarn |
| JPS57158780U (en) * | 1981-03-31 | 1982-10-05 | ||
| JPS57167422A (en) * | 1981-04-02 | 1982-10-15 | Toyoda Autom Loom Works Ltd | Preparation of flyer |
| JPS5881630A (en) * | 1981-11-04 | 1983-05-17 | Toyoda Autom Loom Works Ltd | Flyer presser for roving frame |
| JPH0530173U (en) * | 1991-09-30 | 1993-04-20 | 株式会社豊田自動織機製作所 | Rover flyer presser |
| CN1745204A (en) * | 2003-03-25 | 2006-03-08 | A.T.E.工业私人有限公司 | An improved flyer assembly for roving frame |
| CN2883416Y (en) * | 2006-02-08 | 2007-03-28 | 袁景山 | Non-yarn faults carbon fiber short presser suspension spindle flyer |
| CN201010729Y (en) * | 2006-09-27 | 2008-01-23 | 苏拉有限及两合公司 | Flyer of flyer frame |
| CN107227522A (en) * | 2017-07-24 | 2017-10-03 | 宁夏如意科技时尚产业有限公司 | A kind of roving flyer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107567B (en) * | 1958-11-25 | 1961-05-25 | Rieter Joh Jacob & Cie Ag | Press finger for flyer wing |
| JP2580140Y2 (en) * | 1990-02-20 | 1998-09-03 | 株式会社豊田自動織機製作所 | Flyer for roving machine |
-
2018
- 2018-11-21 JP JP2018217914A patent/JP7110934B2/en active Active
-
2019
- 2019-11-19 CN CN201911132840.2A patent/CN111206313A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5516920A (en) * | 1978-07-17 | 1980-02-06 | Ichikawa Tekkosho:Kk | Device for winding up spun yarn |
| JPS57158780U (en) * | 1981-03-31 | 1982-10-05 | ||
| JPS57167422A (en) * | 1981-04-02 | 1982-10-15 | Toyoda Autom Loom Works Ltd | Preparation of flyer |
| JPS5881630A (en) * | 1981-11-04 | 1983-05-17 | Toyoda Autom Loom Works Ltd | Flyer presser for roving frame |
| JPH0530173U (en) * | 1991-09-30 | 1993-04-20 | 株式会社豊田自動織機製作所 | Rover flyer presser |
| CN1745204A (en) * | 2003-03-25 | 2006-03-08 | A.T.E.工业私人有限公司 | An improved flyer assembly for roving frame |
| CN2883416Y (en) * | 2006-02-08 | 2007-03-28 | 袁景山 | Non-yarn faults carbon fiber short presser suspension spindle flyer |
| CN201010729Y (en) * | 2006-09-27 | 2008-01-23 | 苏拉有限及两合公司 | Flyer of flyer frame |
| CN107227522A (en) * | 2017-07-24 | 2017-10-03 | 宁夏如意科技时尚产业有限公司 | A kind of roving flyer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020084352A (en) | 2020-06-04 |
| JP7110934B2 (en) | 2022-08-02 |
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Application publication date: 20200529 |