CN116497480A - Fiber bundle bundling device of spinning machine - Google Patents

Abstract

A fiber bundle bundling device of a spinning machine is provided. In a countershaft for driving a rotary shaft of a bottom roller for conveying a fiber bundle, a drive gear is quickly replaced. The device is provided with: a compression unit (110) which has a rotation shaft (111) for rotating a conveyance bottom roller (112) for conveying the fiber bundle (F) and bundles the drawn fiber bundle (F); and a counter shaft (130) which drives the rotary shaft (111), wherein a driven gear (113) which receives a drive from the counter shaft (130) is mounted on the rotary shaft (111), wherein a drive gear (132) which meshes with the driven gear (113) is mounted on the counter shaft (130), wherein the plurality of counter shafts (130) are connected to the plurality of compression units (110) by means of couplings (150), and wherein when the width of the drive gear (132) is (W), and the interval between the end portions of the counter shafts (130) which are connected to each other by means of the couplings (150) is (d), W > d > gtoreq (1/4) W is satisfied.

Description

Fiber bundle bundling device of spinning machine

Technical Field

The present invention relates to a fiber bundle bundling device for spinning machine.

Background

Various fiber bundle bundling apparatuses have been proposed, which bundle fiber bundles that have been drawn by a drawing device in advance before twisting, for the purpose of reducing fluff and improving yarn quality such as yarn strength.

The fiber bundle collecting device includes a sub-shaft for rotating a rotating shaft provided with a lower conveying roller for feeding out the fiber bundle. The drive gear provided on the counter shaft is engaged with the driven gear provided on the rotary shaft, and torque is transmitted from the counter shaft to the rotary shaft.

In the fiber bundle collecting device, a relationship between a rotary shaft provided with a carrying bottom roller and a counter shaft for transmitting torque to the rotary shaft is proposed in patent document 1 below.

Patent document 1: european patent publication No. EP1473388

In the spinning machine, a plurality of fiber bundle bundling devices are arranged in parallel as 1 unit, and a plurality of units are further arranged in parallel. In the spinning machine, a plurality of auxiliary shafts having driving gears are connected to each other in correspondence to the fiber bundle bundling device of the plurality of units.

For a drive gear provided on a counter shaft, temporary or periodic replacement may be required due to damage or wear caused by biting of foreign matter or the like in the operation.

In the case of replacement of the drive gear, there are the following methods: after a series of auxiliary shafts of a plurality of units are pulled out from the spinning machine, the gears are replaced. In this case, it is necessary to pull out and remove the auxiliary shaft from the spinning machine and resume the operation of a series of auxiliary shafts after the replacement of the drive gear. Thus, the replacement work of the drive gear requires a lot of time. As a result, the stop time of the spinning machine also increases, and there is a problem in that productivity decreases.

On the other hand, there is also a working method in which the drive gear is configured in half-divided form, and the drive gear to be replaced is divided and removed. In this case, the drive gear is formed in half-divided form, which increases the component cost, makes it difficult to obtain rotational balance of the drive gear, and causes a problem such as a decrease in reliability due to loosening of the fastening screw.

In patent document 1, no consideration is given to the replacement of the drive gear of the counter shaft. Accordingly, it is desirable to quickly replace the drive gear of the counter shaft without deteriorating the productivity of the spinning machine and without using special parts.

Disclosure of Invention

The present disclosure has been made in view of the above-described problems, and an object thereof is to provide a fiber bundle bundling device for a spinning machine, which can quickly replace a driving gear without using a special member in a counter shaft that rotationally drives a rotation shaft of a carrying bottom roller that carries a fiber bundle, without reducing productivity.

The disclosed fiber bundle collecting device for a spinning machine is provided with: a compression unit having a lower conveying roller provided on a rotating shaft and conveying the fiber bundle, an attraction portion for attracting the fiber bundle, a breathable apron rotating along the attraction portion, and an upper conveying roller rotating together with the lower conveying roller by crimping the breathable apron, the compression unit bundling the fiber bundle after drafting; and a counter shaft that drives the rotary shaft, wherein a driven gear that receives a drive from the counter shaft is mounted on the rotary shaft, a drive gear that meshes with the driven gear is mounted on the counter shaft, the plurality of counter shafts are connected to the plurality of compression units by a coupling, and when the width of the drive gear is W and the interval between the end portions of the counter shafts that are connected to each other by the coupling is d, W > d > 1/4W is satisfied.

In the fiber bundle bundling device of the spinning machine disclosed in the above publication, when the width of the drive gear is W and the distance between the end portions of the auxiliary shafts connected to each other by the coupling is d, W > d > 1/2·w is preferably satisfied.

According to this disclosure, the drive gear can be quickly replaced without using any special members in the counter shaft for rotationally driving the rotary shaft of the bottom conveying roller for conveying the fiber bundle, without reducing productivity. That is, since the maximum number of couplings is 4, and only the auxiliary shaft is required to be axially offset, the workability is significantly improved as compared with the conventional method in which a series of auxiliary shafts of a plurality of units are pulled out from the spinning machine.

Drawings

Fig. 1 is a structural diagram showing the structure of a fiber bundle bundling device of a spinning machine according to embodiment 1.

Fig. 2 is an explanatory diagram showing a state in which a drive gear of a counter shaft is replaced in the fiber bundle bundling device of the spinning machine in embodiment 1.

Description of the reference numerals

A fiber bundle bundling device; compression unit; a rotation axis; conveying the bottom roller; driven gear; a suction unit; 116. breathable apron; conveying the top roller; end plugs; support plate; 130. 130a, 130b, 130c. lay shafts; 132. drive gear; bearings; 150. 150a, 150b. F. fiber bundle.

Detailed Description

Hereinafter, an embodiment of a fiber bundle bundling device for a spinning machine will be described with reference to the drawings. In the drawings, the same reference numerals denote the same parts.

Embodiment 1.

First, the basic structure of a fiber bundle bundling device 100 for a spinning machine according to embodiment 1 will be described with reference to fig. 1. Fig. 1 is a structural diagram showing a structure of a fiber bundle bundling device 100 of a spinning machine according to embodiment 1. Here, (a) of fig. 1 represents the fiber bundle bundling device 100, and (b) of fig. 1 represents the auxiliary shaft 130 in the fiber bundle bundling device 100.

[ Structure of fiber bundle bundling device ]

The fiber bundle bundling device 100 is provided downstream of a drafting device, not shown, and bundles the drafted fiber bundle before twisting, and performs treatments such as fluff reduction. The draft device is provided on the back side of the drawing sheet in fig. 1 (a) in the vertical direction. The fiber bundle is processed by the fiber bundle collecting device 100, and is transported downward and outward in the direction perpendicular to the paper surface of fig. 1 (a).

As shown in fig. 1 (a), the fiber bundle bundling device 100 mainly includes a compression unit 110, a support plate 120, and a counter shaft 130.

The compression unit 110 is provided with a rotation shaft 111, a bottom delivery roller 112, a suction unit 114, a breathable apron 116, a top delivery roller 118, and an end plug 119.

The rotation shaft 111 is provided with a plurality of transfer bottom rollers 112 and driven gears 113. A drive gear 132 is provided on the counter shaft 130. Driven gear 113 of rotary shaft 111 is rotated by driving gear 132 of counter shaft 130. That is, a driven gear 113 that receives drive from the counter shaft 130 is attached to the rotary shaft 111. The conveyance bottom roller 112 rotates together with the rotation shaft 111 along with the rotation of the driven gear 113, thereby rotationally driving the air-permeable apron 116 and conveying the fiber bundle F.

The suction unit 114 includes a plurality of suction holes. The suction unit 114 sucks the transported fiber bundle F through the air-permeable apron 116. The breathable apron 116 is formed of an endless fabric capable of securing breathability, and is wound around the delivery bottom roller 112, the suction portion 114, and a guide portion not shown. The transfer top roller 118 rotates together with the transfer bottom roller 112 pressed by the air-permeable apron 116, and transfers the fiber bundle F.

Compression units 110 of 8 spindles are disposed between the adjacent support plates 120. In the machine longitudinal direction, a compression unit group of 8 spindles is 1 unit, and a plurality of compression unit groups are arranged in an extending manner. The rotation shaft 111 is formed with a predetermined length corresponding to the compression unit group of the above 8 spindle amount. End plugs 119 are provided at both ends of the rotation shaft 111. The end plug 119 rotatably supports the rotation shaft 111 on the support plate 120. The support plate 120 is fixed to a roller frame, not shown.

The sub-shaft 130 is formed with a predetermined length corresponding to the compression unit group of the amount of 8 spindles. The auxiliary shaft 130 is supported by a roller frame, not shown, via a bearing 140. A drive gear 132 that meshes with the driven gear 113 of the rotary shaft 111 is attached to the counter shaft 130. The counter shaft 130 drives the rotary shaft 111 via the drive gear 132 and the driven gear 113. In the machine longitudinal direction, a plurality of auxiliary shafts 130 are connected via couplings 150 corresponding to a plurality of compression unit groups.

The fiber bundle F is nipped by the bottom delivery roller 112 and the top delivery roller 118, which rotate in accordance with the rotation of the rotary shaft 111 driven by the counter shaft 130, and is sucked and conveyed by the suction unit 114 via the air-permeable apron 116.

The reaction force of the drive gear 132 may be increased depending on the spinning conditions. Therefore, the mounting position of the drive gear 132 on the counter shaft 130 needs to be determined between the 1 st spindle and the 2 nd spindle counted from the roller frame or the support plate 120. In this case, the coupling 150 may be provided between the 2 nd spindle and the 3 rd spindle counted from the support plate 120 and the roller frame. As described above, by selecting the position between the couplings 150 or the position between the drive gear 132 and the couplings 150 in the counter shaft 130, the backlash and the bending of the counter shaft 130 can be reduced, and the influence on the yarn quality can be minimized.

In embodiment 1, as shown in fig. 1 (b), the width of the drive gear 132 is "W". The interval between the ends of the auxiliary shaft 130 connected to each other by the coupling 150 is d. The coupling 150 can connect the auxiliary shafts 130 to each other by tightening bolts or the like, and can release the connection of the auxiliary shafts 130 by releasing the tightening bolts or the like.

In embodiment 1, when the number of released couplings 150 n=4, the conditional expression of W > d (1/n), that is, W > d (1/4) ·w is satisfied. Preferably, when the number of released couplings 150 is 3, the conditional expression of W > d > 1/3. W is satisfied. More preferably, when the number of released couplings 150 is 2, the conditional expression of W > d > 1/2. W is satisfied.

[ step of replacing drive Gear ]

Next, replacement of the drive gear 132 provided in the counter shaft 130 will be described with reference to fig. 2. Fig. 2 is an explanatory diagram showing a state in which the drive gear 132 of the counter shaft 130 is replaced in the fiber bundle bundling device 100 of the spinning machine according to embodiment 1.

Fig. 2 (a) shows a state in which 3 auxiliary shafts 130a, 130b, 130c are connected by couplings 150a, 150b, respectively. A drive gear 132a is mounted on the counter shaft 130 a.

Here, a specific example in which the number of released couplings 150 in the conditional expression is set to 2 will be described below with respect to the case of replacing the drive gear 132a. Here, since the drive gear 132a to be replaced is removed at the position of the coupling 150a, the 2 couplings 150a, 150b are to be released from the fastening.

Fig. 2 (b) shows a state in which the 3 auxiliary shafts 130a, 130b, 130c are opened by releasing the tightening of the couplings 150a, 150b. Here, the state in which the couplings 150a, 150b are removed from the 3 auxiliary shafts 130a, 130b, 130c is shown by broken lines.

In fig. 2 (c), the position of the 1 auxiliary shaft 130b, which is opened by releasing the fastening of the 2 couplings 150a, 150b, is shifted to the opposite side of the drive gear 132a to be replaced in the axial direction. That is, the auxiliary shaft 130b is axially offset so as to fill the gap d in the region where the coupling 150b exists.

As a result, the interval d in the region where the coupling 150b exists is added to the interval d in the region where the coupling 150a exists. That is, a gap of d+d=2d is generated between the counter shaft 130a and the counter shaft 130 b.

Here, if W > d ∈ (1/2) ·W is decomposed, W > d and W.ltoreq.2d.

That is, the width W of the drive gear 132a is larger than the interval d between the end portions of the auxiliary shafts 130a, 130b connected to each other by the coupling 150 a. Therefore, if the coupling 150a is only released from the fastening, the drive gear 132a cannot pass through the gap of the interval d, and therefore, the drive gear 132a cannot be removed.

On the other hand, when the interval between the counter shaft 130a and the counter shaft 130b is widened to 2d as in fig. 2 (c), W is 2d, and therefore the drive gear 132a having the width W can pass through the gap of the widened interval 2d between the counter shaft 130a and the counter shaft 130 b.

Specific values of this state may be, for example, w=20 mm and d=17 mm. The drive gear 132a of 20mm in width can pass through a gap of 2 d=34 mm spacing expanded by a factor of 2.

As described above, as shown in fig. 2 (d), the drive gear 132a can be moved in the direction of the counter shaft 130b by releasing the fastening of the couplings 150a and 150b and by moving the counter shaft 130b in the axial direction, and then, only the drive gear 132a can be removed from the gap of the expanded gap 2d.

Then, by taking the steps opposite to those of fig. 2 (d), (c), (b) and (a), the new drive gear 132a can be attached to the original position of the auxiliary shaft 130a, and the fiber bundle collecting device 100 of the spinning machine can be quickly returned to the operative state. In this case, the minimum 2 couplings 150 may be removed and attached, and workability is good.

That is, the auxiliary shaft 130 for rotationally driving the rotary shaft 111 of the bottom conveying roller 112 for conveying the fiber bundle F can be replaced quickly by removing only the drive gear 132a without using a special member such as a half-divided drive gear, and without removing the entire plurality of auxiliary shafts 130 connected to each other from the machine.

In the above specific example, the conditional expression of 2 pieces of W > d ∈ (1/2) ·w is described in which the number of removed couplings 150 is minimized. In addition, the number of removed couplings 150 may be 3W > d.gtoreq.1/3.W, and the number of removed couplings 150 may be 4W > d.gtoreq.1/4.W.

Here, the case where W > d.gtoreq.1/3.W will be described. In this case, the fastening of the 3 couplings 150 connecting the 2 layshafts 130 is released. Then, the positions of the 2 auxiliary shafts 130, which are opened by releasing the fastening of the 3 couplings 150, are shifted in the axial direction so as to expand the predetermined area for removing the drive gear 132 to be replaced.

As a result, the interval 2d generated by shifting the 2 counter shafts 130 is added to the interval d in the vicinity of the drive gear 132. That is, an expanded 3d gap is generated in the predetermined removal region of the drive gear 132 to be replaced.

In the case where the interval with the counter shaft 130 is expanded to 3d, since W is equal to or smaller than 3d, the width W of the drive gear 132a can pass through the gap of the interval 3d generated between the counter shaft 130a and the counter shaft 130 b.

Specific numerical values in this state may be, for example, w=20 mm and d=8 mm. The drive gear 132 having a width of 20mm cannot pass through the original 8mm gap, but can pass through a 3 d=24 mm gap expanded by a factor of 3.

Although the detailed description is omitted, the drive gear 132 can be replaced easily in the same manner even when the number of removed couplings 150 is 4 and W > d > 1/4·w. Specific values of this state may be, for example, w=20 mm and d=6 mm. Therefore, when the difference between W and d is large, the case where d is small is effective. The drive gear 132 having a width of 20mm cannot pass through the original 6mm gap, but can pass through the gap of 4d=24 mm expanded by 4 times.

Further, by determining the value or coefficient so that the above conditional expression of (W > d ∈ (1/2) · W, W > d ∈ (1/3) ·w) and (W > d ∈ (1/4) ·w) is satisfied, the drive gear 132 can be quickly replaced on the counter shaft 130 that rotationally drives the rotation shaft 111 of the bottom roller 112 that conveys the fiber bundle F in the fiber bundle bundling device 100 without using any special members and without reducing productivity.

That is, when the drive gear 132 is replaced, only 2 to 4 couplings 150 are released and 1 to 3 auxiliary shafts 130 are moved, so that no influence is exerted on the other areas.

Therefore, since only 4 couplings 150 are removed at most and the auxiliary shaft 130 is offset in the axial direction, the workability is significantly improved as compared with the conventional method in which a series of auxiliary shafts 130 of a plurality of units are pulled out from the spinning machine.

Other embodiments

The coupling 150 may have unbalanced rotational characteristics in its construction. Due to the unbalanced rotational characteristics of the coupling 150, the countershaft 130 may generate a wobbling motion during rotation. Accordingly, it is desirable that the coupling 150 be disposed in the vicinity of the bearing 140 that supports the layshaft 130. On the other hand, as a constraint in layout of the machine, a yarn path is present as a path of the fiber bundle F at a position of about ±30mm around the roller frame to which the bearing 140 is fixed. Therefore, the coupling 150 needs to be provided so as to avoid the yarn path.

In the case where the condition that the unbalanced force of the coupling 150 > the reaction force of the drive gear 132 is satisfied, the coupling 150 may be provided between the 1 st spindle and the 2 nd spindle.

[ Effect obtained by the embodiment ]

As described above, according to the embodiments, the following effects can be obtained.

The fiber bundle bundling device 100 of the spinning machine of the present disclosure is configured to include: a compressing unit 110 having a bottom conveying roller 112 provided on a rotating shaft 111 and conveying the fiber bundle F, a suction portion 114 for sucking the fiber bundle F, and a breathable apron 116 rotating along the suction portion 114, wherein the compressing unit 110 bundles the drawn fiber bundle F; and a counter shaft 130 for driving the rotation shaft 111, wherein a driven gear 113 for receiving a drive from the counter shaft 130 is mounted on the rotation shaft 111, a drive gear 132 engaged with the driven gear 113 is mounted on the counter shaft 130, the plurality of counter shafts 130 are connected to the plurality of compression units 110 by a coupling 150, and when the width of the drive gear 132 is W and the interval between the ends of the counter shafts 130 connected to each other by the coupling 150 is d, W > d > gtoreq (1/4) W is satisfied.

In this way, in the fiber bundle bundling device 100, the drive gear 132 can be quickly replaced without using any special members in the counter shaft 130 that rotationally drives the rotation shaft 111 of the bottom conveying roller 112 that conveys the fiber bundle F, without reducing productivity. Further, since only 4 couplings 150 are removed at most and the auxiliary shaft 130 is offset in the axial direction, the workability is significantly improved as compared with the conventional method in which a series of auxiliary shafts 130 of a plurality of units are pulled out from the spinning machine.

In the fiber bundle collecting device 100 of the spinning machine disclosed in this publication, when the width of the drive gear 132 is W and the distance between the ends of the auxiliary shafts 130 connected to each other by the coupling 150 is d, W > d > 1/2·w is preferably satisfied. In this case, since only 1 auxiliary shaft 130 is required to be offset in the axial direction by removing the minimum number of 2 couplings 150, the workability is significantly improved compared to the conventional method of extracting a series of auxiliary shafts of a plurality of units from the spinning machine. Therefore, the drive gear 132 can be replaced quickly without using special components and without deteriorating productivity. In the fiber bundle bundling device 100 of the spinning machine, the influence of the replacement of the drive gear 132 can be eliminated for the region other than the region where the auxiliary shaft 130 connected by the release of the coupling 150 is opened.

Claims (2)

1. A fiber bundle bundling device for a spinning machine is characterized by comprising:

a compression unit having a lower conveying roller provided on a rotating shaft and conveying a fiber bundle, an attraction portion for attracting the fiber bundle, a breathable apron rotating along the attraction portion, and an upper conveying roller rotating together with the lower conveying roller in pressure contact with the breathable apron, the compression unit bundling the fiber bundle after being drawn; and

a counter shaft driving the rotation shaft,

a driven gear that receives a drive from the auxiliary shaft is mounted on the rotary shaft,

a driving gear meshed with the driven gear is arranged on the auxiliary shaft,

a plurality of auxiliary shafts are corresponding to the compression units and are connected through couplings,

when the width of the drive gear is set to W and the distance between the end portions of the auxiliary shafts connected to each other by the coupling is set to d, W > d > 1/4. W is satisfied.

2. The fiber bundle bundling device for spinning machine according to claim 1, wherein,

when the width of the drive gear is set to W and the distance between the end portions of the auxiliary shafts connected to each other by the coupling is set to d, W > d > 1/2. W is satisfied.