CN112111818A - Spinning frame - Google Patents
Spinning frame Download PDFInfo
- Publication number
- CN112111818A CN112111818A CN202010528725.3A CN202010528725A CN112111818A CN 112111818 A CN112111818 A CN 112111818A CN 202010528725 A CN202010528725 A CN 202010528725A CN 112111818 A CN112111818 A CN 112111818A
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- Prior art keywords
- roller
- control roller
- suction tube
- roller pair
- pair
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
- D01H5/82—Arrangements for coupling roller sections
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/46—Loading arrangements
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/56—Supports for drafting elements
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
Abstract
The invention provides a spinning machine which can change the peripheral speed ratio of a final delivery roller pair and a control roller pair of a drafting device and can restrain the change of the peripheral speed ratio caused by the grinding of the rollers. In a spinning machine provided with a fiber bundle bundling device (3) for bundling fiber bundles drafted by a draft device (1), the draft device is provided with a front roller pair (2) composed of a front upper roller (2a) and a front lower roller (2b), and the fiber bundle bundling device is provided with: the device comprises a control roller pair (7) consisting of an upper control roller (7a) and a lower control roller (7b), a suction tube (5), and a ventilating apron (6) wound around the suction tube, wherein the circumferential speed ratio of the front lower roller and the lower control roller can be changed, and the device is provided with a pressurizing mechanism (11) which pressurizes the upper control roller in a manner that the upper control roller is pressed on both the lower control roller and the ventilating apron.
Description
Technical Field
The present invention relates to a spinning machine provided with a fiber bundle bundling device.
Background
The spinning machine is provided with a fiber bundle bundling device for bundling fiber bundles drafted by a drafting device in advance before twisting to improve yarn quality such as fluff reduction. For example, patent document 1 describes a configuration in which a control roller pair is provided downstream of a final feed roller pair of a draft device, a suction tube is provided between the control roller pair and the final feed roller pair, and a ventilation apron is wound around a lower roller of the control roller pair, the suction tube, and a guide portion. In the structure described in patent document 1, the air permeable apron is wound around the lower roller of the control roller pair, and the lower roller is rotated with the air permeable apron interposed between the upper roller and the lower roller of the control roller pair, whereby the air permeable apron can be moved around.
Patent document 3 describes a configuration in which a control roller pair including a top roller and a bottom roller is provided on the downstream side of a draft device, a suction tube is provided on the upstream side of the top roller, and a ventilation apron is wound around the suction tube and the top roller. In the structure described in patent document 3, the top roller around which the air leather collar is wound is brought into contact with the bottom roller by pressurization, and the bottom roller is rotated in this state, whereby the air leather collar can be moved around.
Patent document 1: japanese laid-open patent publication No. 2008-095233
Patent document 2: japanese laid-open patent publication No. 2000-034631
Patent document 3: japanese patent laid-open No. 2000-170043
However, the techniques described in patent documents 1 to 3 have the following problems.
In general, it is known that a peripheral speed ratio (hereinafter, simply referred to as "peripheral speed ratio") between a final delivery roller pair of a draft device and a control roller pair provided downstream of the final delivery roller pair greatly affects yarn quality (fluff, unevenness, strength, etc. of yarn). Therefore, in order to maintain the yarn quality well, it is important to stabilize the peripheral speed. However, it is known that the optimum value of the circumferential speed ratio differs depending on the raw material of the yarn. Therefore, it is desirable that the circumferential speed ratio can be easily changed depending on the material of the yarn.
However, in the technique described in patent document 1, the rotational driving force is transmitted from the lower roller of the final delivery roller pair to the lower roller of the control roller pair (hereinafter, also referred to as "lower control roller") by the gear transmission mechanism in a small number of unit units, and in the technique described in patent document 2, the rotational driving force is transmitted from the upper roller of the final delivery roller pair to the control roller by the drive belt in a small number of unit units. Therefore, in order to change the circumferential speed ratio, a large number of parts must be replaced each time, and in reality, the change of the circumferential speed ratio cannot be handled. In the technique described in patent document 1, in order to reduce the number of replacement parts, a structure in which the lower control rollers are coupled by one shaft is also conceivable. However, since the air-permeable apron is wound around the lower control roller, if the lower control roller is coupled by one shaft, another problem arises in that replacement of the air-permeable apron becomes difficult.
On the other hand, in the technique described in patent document 3, a suction tube is provided on the same side (upper side) as the top roller, and the fiber bundle is moved under the suction tube. Therefore, there is a problem that the bundled state of the fiber bundle cannot be confirmed by visual observation or the like during the operation of the spinning machine, and the finding at the time of occurrence of the failure is delayed. Further, since the top roller (rubber roller) is distorted in roundness or the like due to wear, if the top roller is ground in order to eliminate the distortion, a deviation occurs in the position of the suction tube due to a change in the roller diameter caused by the grinding, which causes another problem of deterioration in the yarn quality.
In the technique described in patent document 2, when the top roller and the control roller of the final delivery roller pair are periodically ground, the circumferential speed ratio is changed by changing the ratio of the diameters of both rollers before and after grinding. Therefore, in order to prevent the quality of the yarn from being degraded by the polishing of the rollers, it is necessary to perform polishing at the same timing by both rollers, and it is necessary to strictly manage the roller diameter.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object thereof is to provide a spinning machine capable of changing a circumferential speed ratio between a final delivery roller pair and a control roller pair of a draft device and suppressing a change in the circumferential speed ratio caused by the grinding of the rollers.
The present invention is a spinning machine including a fiber bundle bundling device for bundling a fiber bundle drafted by a draft device, wherein the draft device includes: the final delivery roller pair composed of a 1 st driving roller and a 1 st driven roller, the fiber bundle bunching device is provided with: a control roller pair which is arranged on the downstream side of the final delivery roller pair and is composed of a 2 nd driving roller and a 2 nd driven roller; a suction tube disposed upstream of the control roller pair and downstream of the final delivery roller pair; and a vented apron wound around the suction tube, the spinning machine being capable of changing a circumferential speed ratio of the 1 st driving roller and the 2 nd driving roller, and being provided with a pressurizing mechanism for pressurizing the 1 st driven roller or the 2 nd driven roller so as to press the 1 st driven roller against the 1 st driving roller constituting the roller pair and the vented apron wound around the suction tube, or so as to press the 2 nd driven roller against the 2 nd driving roller constituting the roller pair and the vented apron wound around the suction tube.
In the spinning machine according to the present invention, the pressurizing mechanism may include: and a holder for supporting the rotation supporting shaft of the 1 st driven roller or the 2 nd driven roller, wherein the holder allows the movement of the rotation supporting shaft in the direction in which the 1 st driving roller or the 2 nd driving roller is adjacent to the suction tube and supports the rotation supporting shaft when the 1 st driven roller or the 2 nd driven roller is pressurized by the pressurizing mechanism.
In the spinning machine according to the present invention, the holder may have a support portion that forms a gap with respect to the rotating support shaft in a direction in which the 1 st drive roller or the 2 nd drive roller and the suction tube are adjacent to each other.
According to the present invention, the circumferential speed ratio between the final delivery roller pair and the control roller pair of the draft device can be changed, and the change in the circumferential speed ratio caused by the grinding of the rollers can be suppressed.
Drawings
Fig. 1 is a schematic side view showing a configuration of a main part of a spinning machine according to embodiment 1 of the present invention.
Fig. 2 is a schematic side view for explaining the structure of a pressing mechanism for pressing a top control roller in the spinning machine according to embodiment 1 of the present invention.
Fig. 3 is a schematic side view showing a configuration of a main part of a spinning machine according to embodiment 2 of the present invention.
Description of the reference numerals
A drafting device; front roller pair (final delivery roller pair); a front upper roller (1 st driven roller); front bottom roller (1 st drive roller); a fiber bundle bundling device; a suction tube; 6.. ventilating leather rings; controlling the roller pair; an upper control roller (2 nd driven roller); a lower control roller (2 nd drive roller); rotating the support shaft; a pressurizing mechanism; a stent; a support.
Detailed Description
< embodiment 1 >
Fig. 1 is a schematic side view showing a configuration of a main part of a spinning machine according to embodiment 1 of the present invention. In the following description, one side is referred to as an upstream side and the other side is referred to as a downstream side with reference to a feeding direction of a fiber bundle in a spinning machine.
As shown in fig. 1, the draft device 1 includes a front roller pair 2. The front roller pair 2 corresponds to a final delivery roller of the draft device 1. The fiber bundle drafted by the draft device 1 is sent out to the downstream side by the rotation of the front roller pair 2. The draft device 1 includes a front roller pair 2, a middle roller pair and a rear roller pair, not shown, and drafts the fiber bundle by a difference in peripheral speed between the respective roller pairs.
The front roller pair 2 is composed of a front upper roller 2a and a front lower roller 2b. The front top roller 2a is formed of a rubber roller, and the front bottom roller 2b is formed of a metal roller. The front top roller 2a is brought into contact with the front bottom roller 2b at a predetermined pressing force. The front top roller 2a corresponds to the 1 st driven roller, and the front bottom roller 2b corresponds to the 1 st driving roller. Here, the driving roller is a roller rotationally driven by a driving source, and the driven roller is a roller that rotates following the rotation of the driving roller. A fiber bundle bundling device 3 is disposed downstream of the draft device 1 (front roller pair 2).
The fiber bundle bundling device 3 is a device for bundling the fiber bundle drafted by the draft device 1. The fiber bundle bundling device 3 includes: a suction tube 5, a ventilation apron 6 wound around the suction tube 5, and a control roller pair 7 disposed on the opposite side (downstream side) from the front roller pair 2 with the suction tube 5 interposed between itself and the front roller pair 2, wherein the suction tube 5 is disposed upstream of the control roller pair 7 and downstream of the front roller pair 2.
The suction tube 5 has a guide surface 5a having a suction hole not shown, and a ventilation leather ring 6 is wound around the suction tube 5 so as to cover the guide surface 5 a. The ventilation leather ring 6 is brought into close contact with the guide surface 5a of the suction tube 5 by the tension applied to the ventilation leather ring 6 by the guide section 8 described later. The air-permeable apron 6 has an endless belt structure and is formed of, for example, a mesh-like fabric having appropriate air permeability. The air-permeable apron 6 is wound around the suction tube 5 and the guide portion 8, and is not wound around the lower control roller 7b. The guide portion 8 gives an appropriate tension to the air permeable apron 6 and guides the movement of the air permeable apron 6.
The control roller pair 7 is composed of an upper control roller 7a and a lower control roller 7b. The upper control roller 7a is formed of a rubber roller, and the lower control roller 7b is formed of a metal roller. The upper control roller 7a corresponds to the 2 nd driven roller, and the lower control roller 7b corresponds to the 2 nd drive roller. Here, in the relationship between the front roller pair 2 and the control roller pair 7, the circumferential speed ratio between the front bottom roller 2b and the bottom control roller 7b is configured to be changeable. Specifically, the front bottom roller 2b and the bottom control roller 7b may be rotationally driven by independent drive sources. Further, a driving force transmission mechanism that transmits the driving force of the driving source to the front lower rollers 2b and the lower control rollers 7b when the front lower rollers 2b and the lower control rollers 7b are rotationally driven by the common driving source may be replaced. As the driving force transmission mechanism, for example, a gear transmission mechanism can be employed.
The top control roller 7a presses the top control roller 7a at point a to form a bottom control roller 7b, which is a drive roller of the roller pair. The upper control roller 7a presses the suction tube 5 around which the air permeable apron 6 is wound at point B. Therefore, at point B, the air-permeable apron 6 is sandwiched between the guide surface 5a of the suction tube 5 and the outer peripheral surface of the upper control roller 7a. However, when the fiber bundle drafted by the draft device 1 is bundled by the fiber bundle bundling device 3, the fiber bundle is sandwiched between the upper control roller 7a and the air-permeable apron 6 and between the upper control roller 7a and the lower control roller 7b.
Fig. 2 is a schematic side view for explaining the structure of a pressing mechanism for pressing a top control roller in the spinning machine according to embodiment 1 of the present invention.
As shown in fig. 2, the pressing mechanism 11 includes a spring member 15 and a holder 16 attached to the spring member 15. The spring member 15 is formed of a plate spring bent in a predetermined shape. The fixed end (upper end) of the spring member 15 is fixed to a not-shown counterweight arm.
The bracket 16 is attached to the free end (lower end) side of the spring member 15. The holder 16 supports the rotation support shaft 7c of the upper control roller 7a. The rotating support shaft 7c is disposed concentrically with the upper control roller 7a. A support portion 17 for supporting the rotation support shaft 7c of the upper control roller 7a is formed on the holder 16. The support portion 17 is engaged with the rotation support shaft 7c of the upper control roller 7a to support the rotation support shaft 7c.
The suction tube 5 and the lower control roller 7b are arranged adjacent to each other in the Z direction. Therefore, the Z direction corresponds to a direction in which the suction tube 5 and the lower control roller 7b are adjacent to each other. In contrast, the support portion 17 is formed in a long hole shape that is long in the Z direction so as to allow the movement of the rotation support shaft 7c in the Z direction. The long side dimension of the support portion 17 is set longer than the diameter of the rotation support shaft 7c. Therefore, in a state where the rotation support shaft 7c is engaged with the support portion 17, a gap is generated in the longitudinal direction of the support portion 17, and the rotation support shaft 7c is in a state of being movable in the Z direction in the support portion 17 due to the gap. That is, the support portion 17 forms a gap with respect to the rotation support shaft 7c of the upper control roller 7a in the direction in which the suction tube 5 and the lower control roller 7b are adjacent to each other.
A cutout 17a is formed above the support portion 17 so that the rotation support shaft 7c can move in and out with respect to the support portion 17. The shape formed between a tangent line L1 of the lower control roller 7B at the pressing point a between the upper control roller 7a and the lower control roller 7B and a tangent line L2 of the suction tube 5 at the pressing point B between the suction tube 5 around which the air-permeable apron 6 is wound and the upper control roller 7a is a concave shape that is concave toward the lower control roller 7B and the suction tube 5.
In the pressurizing mechanism 11 configured as described above, the rotary support shaft 7c of the upper control roller 7a is engaged with the support portion 17 of the holder 16 to support the rotary support shaft 7c, and in this state, the upper control roller 7a is pressed toward the suction tube 5 and the lower control roller 7b by the urging force of the spring member 15. At this time, the position of the upper control roller 7a is automatically adjusted to a position pressed against both the air permeable apron 6 wound around the suction tube 5 and the lower control roller 7b by moving the support shaft 7c in the Z direction in the support portion 17. Therefore, the movement of the upper control roller 7a can be suppressed during pressurization, and the position of the upper control roller 7a can be maintained constant.
Next, the operation of the spinning machine according to embodiment 1 of the present invention will be described.
First, the fiber bundle drafted by the draft device 1 is sent out to the fiber bundle concentrating device 3 by the front roller pair 2. The fiber bundle sent out to the fiber bundle concentrating device 3 is moved together with the air-permeable apron 6 on the guide surface 5a of the suction tube 5, and then is nipped by the pair of control rollers 7 and further sent out to the downstream side by the pair of control rollers 7.
Meanwhile, the front top roller 2a rotates following the rotation of the front bottom roller 2b, and the top control roller 7a rotates following the rotation of the bottom control roller 7b. Therefore, the peripheral speed of the front upper roller 2a is the same as that of the front lower roller 2b, and the peripheral speed of the upper control roller 7a is the same as that of the lower control roller 7b. Therefore, for example, in the case where the front bottom roller 2b and the bottom control roller 7b are configured to be rotationally driven by independent drive sources, the ratio of the circumferential speeds of the front roller pair 2 and the control roller pair 7 can be changed by changing the rotational speed (circumferential speed) of the rollers using at least one of the drive source of the front bottom roller 2b and the drive source of the bottom control roller 7b. Therefore, the circumferential speed ratio between the front roller pair 2 and the control roller pair 7 can be set to an optimum value corresponding to the raw material of the yarn.
In addition, when the upper control roller 7a is ground, the diameter of the upper control roller 7a changes before and after the grinding. However, as described above, the circumferential speed of the upper control roller 7a is the same as the circumferential speed of the lower control roller 7b. That is, the upper control roller 7a rotates at the same circumferential speed as the lower control roller 7b at all times regardless of the presence or absence of polishing. Therefore, even if the upper control roller 7a is polished, the circumferential speed of the upper control roller 7a does not change. The same applies to the front roller pair 2 in this regard. Therefore, the change in the circumferential speed ratio caused by the grinding of the roller can be suppressed.
On the other hand, the air-permeable apron 6 wound around the suction tube 5 moves around following the rotation of the upper control roller 7a. Therefore, the moving speed of the air leather 6 is determined by the peripheral speed of the upper control roller 7a. Therefore, if the circumferential speed of the upper control roller 7a does not change before and after the polishing of the upper control roller 7a as described above, the moving speed of the air-permeable apron 6 does not change. Therefore, after the circumferential speed ratio between the front roller pair 2 and the control roller pair 7 is set to an optimum value corresponding to the raw material of the yarn, the optimum setting state can be maintained even when the upper control roller 7a is polished.
In embodiment 1, a control roller pair 7 is provided downstream of the suction tube 5, and the fiber bundle is introduced by the control roller pair 7. Therefore, even when the fiber of the fiber bundle is caught by the air-permeable apron 6 moving on the guide surface 5a of the suction tube 5, the fiber bundle can be peeled off from the air-permeable apron 6 by the introduction force of the control roller pair 7. Therefore, yarn breakage due to hooking of the fiber to the air-permeable apron 6 can be suppressed.
< embodiment 2 >
Fig. 3 is a schematic side view showing a configuration of a main part of a spinning machine according to embodiment 2 of the present invention.
In embodiment 2, the same components as those in embodiment 1 will be described with the same reference numerals.
As shown in fig. 3, the front roller pair 2 is composed of a front top roller 2a and a front bottom roller 2b, and the controlled roller pair 7 is composed of a top controlled roller 7a and a bottom controlled roller 7b. The circumferential speed ratio between the front roller pair 2 (front bottom roller 2b) and the control roller pair 7 (bottom control roller 7b) can be changed. A specific configuration for changing the circumferential speed ratio of the two roller pairs is as described in embodiment 1 above.
The front upper roller 2a is pressed against the front lower roller 2b at point C. The front top roller 2a is pressed against the air permeable apron 6 wound around the suction tube 5 at point D. Therefore, at point D, the air-permeable apron 6 is sandwiched between the guide surface 5a of the suction tube 5 and the outer peripheral surface of the front top roller 2a. However, when the fiber bundle is fed from the draft device 1 to the fiber bundle concentrating device 3, the fiber bundle is sandwiched between the front upper roller 2a and the front lower roller 2b and between the front upper roller 2a and the air-permeable apron 6.
The pressurizing mechanism for pressing the front top roller 2a against the front bottom roller 2b and the air-permeable apron 6 by pressurization may be configured to include a spring member 15 and a holder 16, for example, in the same manner as the pressurizing mechanism 11 described in embodiment 1, and support the rotational support shaft of the front top roller 2a by a support portion 17 of the holder 16.
In the spinning machine according to embodiment 2 of the present invention, the front top roller 2a is pressed against both the front bottom roller 2b and the air-permeable apron 6. Therefore, the front top roller 2a rotates following the rotation of the front bottom roller 2b, and the air permeable apron 6 wound around the suction tube 5 moves around following the rotation of the front top roller 2a. On the other hand, the upper control roller 7a is pressed only against the lower control roller 7b. Therefore, the upper control roller 7a rotates following the rotation of the lower control roller 7b. Therefore, for example, in the case where the front bottom roller 2b and the bottom control roller 7b are configured to be rotationally driven by independent drive sources, the ratio of the circumferential speeds of the front roller pair 2 and the control roller pair 7 can be changed by changing the rotational speed (circumferential speed) of the rollers using at least one of the drive source of the front bottom roller 2b and the drive source of the bottom control roller 7b. Therefore, the circumferential speed ratio between the front roller pair 2 and the control roller pair 7 can be set to an optimum value corresponding to the raw material of the yarn.
In addition, when the front top roller 2a is ground, the diameter of the front top roller 2a changes before and after grinding. However, the peripheral speed of the front upper roller 2a is the same as that of the front lower roller 2b. That is, the front top roller 2a always rotates at the same peripheral speed as the front bottom roller 2b regardless of the presence or absence of rubbing. Therefore, even if the front top roller 2a is polished, the circumferential speed of the front bottom roller 2b does not change. Therefore, the change in the circumferential speed ratio caused by the grinding of the roller can be suppressed.
On the other hand, the air-permeable apron 6 wound around the suction tube 5 moves around following the rotation of the front top roller 2a. Therefore, the moving speed of the air leather 6 is determined by the peripheral speed of the front top roller 2a. Therefore, if the circumferential speed of the front top roller 2a does not change before and after the polishing of the front top roller 2a as described above, the moving speed of the air-permeable apron 6 does not change. Therefore, after the circumferential speed ratio between the front roller pair 2 and the control roller pair 7 is set to the optimum value corresponding to the raw material of the yarn, the optimum setting state can be maintained even when the front top roller 2a is polished.
The technical scope of the present invention is not limited to the above-described embodiments, but includes various modifications and improvements within a scope of deriving specific effects obtained by the structural elements and combinations thereof of the present invention.
For example, in embodiment 1 described above, the spring member 15 is used as the pressurizing mechanism 11 for pressurizing the top control roller 7a, but the present invention is not limited to this, and for example, a configuration in which pressurization is performed by air pressure or magnetic force, or a configuration in which pressurization is performed by the weight of the roller may be employed. This point is also the same as in embodiment 2 described above. In addition, in the case of using a mechanism for pressurizing by air pressure, even if the diameter of the roller to be pressurized changes due to polishing, the pressurizing force applied to the roller by the air pressure does not change. Therefore, the pressing force to the roller can be maintained constant before and after the polishing.
In addition, in the above-described embodiment 1, the support portion 17 is formed in the bracket 16, and the support portion 17 is formed in an elongated hole shape, so that the movement of the rotation support shaft 7c in the Z direction is allowed. For example, the rotation support shaft 7c of the top control roller 7a may be fixed to the holder 16, and the holder 16 and the rotation support shaft 7c may be supported by a weight arm (not shown) in a movable state in the Z direction, thereby allowing the movement of the rotation support shaft 7c in the Z direction. Alternatively, the holder 16 may have a two-part structure including a 1 st holder part and a 2 nd holder part that are relatively movable in the Z direction, and the Z-direction movement of the rotating support shaft 7c may be allowed by fixing the 1 st holder part to the rotating support shaft 7c and fixing the 2 nd holder part to the weight arm.
Claims (3)
1. A spinning machine is provided with a fiber bundle bundling device for bundling fiber bundles drafted by a drafting device,
the draft device comprises: a final delivery roller pair composed of a 1 st driving roller and a 1 st driven roller,
the fiber bundle bundling device is provided with: a control roller pair which is arranged on the downstream side of the final delivery roller pair and is composed of a 2 nd driving roller and a 2 nd driven roller; a suction tube disposed upstream of the control roller pair and downstream of the final delivery roller pair; and a ventilation leather ring wound around the suction tube,
the spinning machine is capable of changing the circumferential speed ratio of the 1 st driving roller and the 2 nd driving roller,
the spinning machine is provided with a pressurizing mechanism which pressurizes the 1 st driven roller or the 2 nd driven roller in a manner that the 1 st driven roller is pressed against the 1 st driving roller constituting the final delivery roller pair and the ventilating apron wound around the suction pipe, or the 2 nd driven roller is pressed against the 2 nd driving roller constituting the control roller pair and the ventilating apron wound around the suction pipe.
2. Spinning frame according to claim 1,
the pressurizing mechanism includes: a bracket for supporting the rotation supporting shaft of the 1 st driven roller or the 2 nd driven roller,
the holder allows movement of the rotation support shaft in a direction in which the 1 st drive roller or the 2 nd drive roller is adjacent to the suction tube and supports the rotation support shaft in a case where the 1 st driven roller or the 2 nd driven roller is pressurized by the pressurizing mechanism.
3. Spinning frame according to claim 2,
the holder has a support portion that forms a gap with respect to the rotation support shaft in a direction in which the 1 st drive roller or the 2 nd drive roller and the suction tube are adjacent to each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019113472A JP7251345B2 (en) | 2019-06-19 | 2019-06-19 | Spinning frame |
| JP2019-113472 | 2019-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112111818A true CN112111818A (en) | 2020-12-22 |
| CN112111818B CN112111818B (en) | 2023-01-13 |
Family
ID=71096535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010528725.3A Active CN112111818B (en) | 2019-06-19 | 2020-06-11 | Spinning frame |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3754063B1 (en) |
| JP (1) | JP7251345B2 (en) |
| CN (1) | CN112111818B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760765A (en) * | 2019-10-21 | 2021-05-07 | 卓郎纺织解决方案两合股份有限公司 | Condenser for a drafting system of a spinning machine and drafting system of a condenser |
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| US20010020357A1 (en) * | 2000-03-08 | 2001-09-13 | Zinser Textilmaschinen Gmbh | Drafting frame for a spinning machine |
| CN1600912A (en) * | 2003-09-10 | 2005-03-30 | 里特机械公司 | Appts for pressing fiber strip on spinning machine |
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| CN112760765B (en) * | 2019-10-21 | 2023-02-17 | 卓郎纺织解决方案两合股份有限公司 | Cotton condenser for a drafting system of a spinning machine and drafting system of a cotton condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7251345B2 (en) | 2023-04-04 |
| CN112111818B (en) | 2023-01-13 |
| EP3754063B1 (en) | 2023-04-19 |
| EP3754063A1 (en) | 2020-12-23 |
| JP2020204125A (en) | 2020-12-24 |
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