JP2727676B2 - Spinning machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a spinning machine having a large number of spindles, such as a ring spinning machine and a ring twisting machine.

[Prior Art] In this type of spinning machine, generally, the interval between weights is constant over the entire length of the machine base, that is, the pitch of spindles provided on a spindle rail is set to be equal. In a spinning machine, the spindle pitch is 70 mm or 75 mm, and the number of spindles is usually about 200 spindles on one side.
There are 00 weights or about 500 weights, making it a very long machine.
For this purpose, as shown in FIG. 7, a large number of intermediate frames 31 are provided between the gear end GE and the out end OE, and a plurality of spindle rails 32 and roller beams 33 are connected at the intermediate frame to form a frame. Has been proposed (JP-A-63-227819).

In general, a draft mechanism of a spinning machine has a plurality (three in the figure) of bottom roller shafts 35 supported by a plurality of roller stands 34 as shown in FIG. . Since the machine base is long as described above, the bottom roller shaft 35 is configured by connecting a plurality of bottom roller shafts coaxially. The bottom roller shaft 35 is formed with a muscle roller portion 35c at a position corresponding to the spindle, as shown in FIG. 9, to secure a space for mounting both the bearing and the coupling between the muscle roller portions 35c. Is difficult. Therefore,
Conventionally, as shown in FIG. 9, a male screw part 35a formed at one end of a shaft divided into a female screw part 3 formed at the end of another shaft is used.
One bottom roller shaft 35 is formed by screwing the bottom roller shaft 5b to each other to form a single bottom roller shaft 35. The bottom roller shaft 35 is supported by a roller stand 34 via a bearing 36 mounted on a connection portion.

[Problems to be Solved by the Invention] When the machine frame is formed by connecting the plurality of spindle rails 32 and the roller beams 33 at the intermediate frame portion as described above, the total length of the spinning machine machine is long. By increasing the number of intermediate frames 31 and disassembling the machine frame for each part, the transportation from the spinning plant to the spinning plant where the spinning machine stand is installed becomes easy. The spindle rail 32 is fixed to the intermediate frame 31 by bolts 37 and nuts (not shown) as shown in FIG.
In addition, since the spindle pitch is constant over the entire length of the machine and the pitch P of the adjacent spindles 28 is only about 70 mm,
There is a disadvantage that the spindle 38 becomes an obstacle during the assembling operation.

Also, since the bottom roller shaft 35 is divided into a plurality of divided bottom roller shafts 35 by being screwed together with a male screw portion 35a and a female screw portion 35b, only a part of the bottom roller shaft 35 is removed from the roller stand 34 during maintenance work. It was not possible to remove it, and it was necessary to remove the entire bottom roller shaft 35, which was troublesome. Furthermore, fly wool floating in the spinning plant is likely to accumulate at corners with large steps, such as at the mounting location of the bearing 36, and the gap between the bearing 36 mounted on the connecting portion of the bottom roller shaft 35 and the streak roller portion 35c is increased. If it is narrow, there is also a problem that fly waste accumulated at the end of the bearing 36 easily jumps into the yarn being spun, thereby deteriorating the yarn quality.

In recent years, there has been proposed an apparatus using a peg tray for conveying a yarn between a spinning process and a winder process (Japanese Patent Laid-Open No.
No. 57-161133). As shown in FIG. 11, this tube thread conveying device has a diameter equal to the spindle pitch, and a peg tray 39 having a peg 39a into which a bobbin is inserted is mounted on a guide rail 40 extending along the spindle rail 32. A large number are arranged in contact with each other. or,
A feeding device (not shown) having a locking claw that can be engaged and disengaged with a concave portion formed on the lower surface of the peg tray 39 is provided below the guide rail 40, and the locking claw reciprocates with the operation of the feeding device. By being moved, the peg trays 39 are moved on the guide rails 40 at a predetermined pitch while being in contact with each other to convey the yarn.

In order to eliminate the inconvenience at the time of assembling the spindle rail 32 or the bottom roller shaft 35 and performing maintenance work, the peg tray 39 can be used only by simply increasing the spindle pitch at the connecting point of the spindle rail 32 or the bottom roller shaft 35. It is difficult to use a twisted yarn conveying device. This is because the above-mentioned yarn transfer device is based on the premise that the refilling operation in the spinning machine is automatically performed by the refilling machine. In order to smoothly perform the refilling operation by the refilling machine, the spindle 38 and the peg tray 39 are required. And the corresponding pegs 39a at a predetermined pitch. However, the peg tray 39
The positioning is based on the premise that the peg trays 39 move in contact with each other.If the spindle pitch of the connection point of the spindle rail 32 or the bottom roller shaft 35 is arbitrarily widened, the peg tray 39 and the peg tray 39 after the connection portion are moved. The relationship with the spindle 32 cannot be matched at a predetermined pitch.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to simplify the assembling and maintenance work of the machine base when the machine frame is composed of a plurality of divided spindle rails and bottom rollers. Another object of the present invention is to provide a spinning machine which can easily cope with a tube changing machine and a yarn conveying system using a peg tray, which are conventionally used in a ring spinning machine or the like.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, the spindle rail and the bottom roller are divided into a plurality of parts, and the spindle pitch of at least one connection point between the spindle rail and the bottom roller is changed to another part. (N is an integer of 2 or more).

The spindle pitch is set to N of the spindle pitch of other parts.
The double (N is an integer of 2 or more) location may be a spindle rail connection location or a bottom roller connection location.

In addition, the spindle rail connection portion may correspond to the bottom roller connection portion, and the spindle pitch of the connection portion may be set to N times (N is an integer of 2 or more) the spindle pitch of another portion.

Also, the spindle rail and the bottom roller are divided into a plurality of parts, and the spindle pitch of at least one connecting point of the spindle rail and the bottom roller is set to N times (N is an integer of 2 or more) the spindle pitch of the other part, and the spindle is suspended on a creel. The pitch of the roving wound may be the same pitch over the entire length of the machine base.

[Operation] In the spinning machine according to the present invention, when the spindle pitch of the connecting portion of each spindle rail is set to N times (N is an integer of 2 or more) of the spindle pitch of the other portion, a bolt for fixing the spindle rail to the connecting member is used. Can be set at a position where the tool for tightening the bolts and the spindle do not interfere with each other, so that the machine frame can be easily assembled. Also, when the spindle pitch of the connecting portion of the bottom roller shaft is set to N times the spindle pitch of the other portions, both the bearing and the coupling can be attached to the connecting portion of the bottom roller shaft, and the maintenance of the bottom roller shaft can be performed. In this case, the connection of the bottom roller shaft can be cut off at the coupling portion, and only the necessary portions can be removed from the roller stand.

Even when the spindle pitch is different from the others, the value is an integral multiple of the specified pitch, so when using a yarn feeding system using a peg tray, the spindle pitch must be spared on the guide rail of the peg tray corresponding to the different part. By arranging the peg trays, it is possible to easily cope with the problem, and to cope with the work of changing pipes by the changer.

In the spinning machine according to the fifth aspect of the present invention, in addition to exhibiting the same effect as described above, the pitch of the roving wound on the creel is set at the same pitch over the entire length of the machine base. The total length of the spinning frame is the same as when the spindle pitch is set to be equal pitch over the entire length of the frame.

Example 1 Hereinafter, a first example in which the present invention is embodied in a spinning machine will be described as a first example.
This will be described with reference to FIGS.

As shown in FIG. 1, a number of intermediate frames 2 are provided between the gear end GE and the out end OE of the spinning frame 1, and the intervals between the intermediate frames 2 are equal, and the intermediate frame 2 and the gear end GE or the out end OE are provided. Are set up in a state where the distance between them is larger than the distance between the intermediate frames 2. The spindle rail 3 is formed to have a length substantially equal to the interval between the intermediate frames 2 and, as shown in FIG. 2, is provided with bolts 4 inserted into bolt holes (not shown) formed at both ends thereof. It is fixed to 2.

A predetermined pitch P1 (for example, 70 m
In step m), the spindle 5 is provided, and the spindle pitch at the connection point where the spindle rail 3 is fixed to the intermediate frame 2 is set to twice the predetermined pitch P1. That is, the distance from the end of the spindle rail 3 to the mounting position of the spindle 5 is twice as large as that of the related art, and the mounting position of the bolt 4 is changed between the tool for tightening the bolt 4 and the spindle 5 as shown in FIG. It is set with a margin at a position where it does not interfere. Therefore, when the machine frame is assembled by tightening and fixing the spindle rail 3 and the roller beam (not shown) to the intermediate frame 2 with the bolts 4, the spindle 5 does not hinder the assembly work. It will be easier.

Further, the bottom roller shaft 6 of the draft device is connected at a position corresponding to the connecting portion of the spindle rail 3. As shown in FIG. 3, a key groove 7 is formed at an end of the bottom roller shaft 6, and the key 8 is fitted into the key groove 7 so as to be integrally rotatable via a coupling 9 while the key 8 is fitted. , Is supported by a roller stand 11 via a bearing 10 mounted adjacent to the coupling 9. The interval between the muscle roller portions 6a in the connecting portion of the bottom roller shaft 6 is twice as large as the interval in the other portions. Even when both the coupling 9 and the bearing 10 are mounted, the end of the muscle roller portion 6a and the coupling 9 Alternatively, the interval between the end of the bearing 10 is wider than the interval between the end of the strip roller 6a and the end of the bearing 10 in the conventional device.

When assembling the bottom roller shaft 6 to the roller stand 11, conventionally, the bottom roller shaft 6 connected to the entire length of the machine stand must be assembled to the roller stand 11, which requires a large number of workers and is troublesome for work. It took. However, in this embodiment, the bottom roller shaft 6 is connected via the coupling 9, and the coupling 9 can be slid along the bottom roller shaft 6 with the bottom roller shaft 6 attached to the roller stand 11. Therefore, the bottom roller shaft 6 can be sequentially assembled to the roller stand 11 for each divided portion.
In addition, the bottom roller shaft 6, which is necessary for maintenance work, can be detached from the roller stand 11 by separating it from other parts, which facilitates maintenance work and facilitates assembly after maintenance work. Further, the distance between the end of the muscle roller 6a and the end of the coupling 9 or the bearing 10 is wider than the distance between the end of the muscle roller 6a and the end of the bearing 10 in the conventional device. The fly waste accumulated on the bearing 10 is prevented from jumping into the yarn being spun and causing yarn breakage or quality deterioration, and the accumulated fly waste can be easily removed by a blow cleaner or the like.

The roving winding 12 suspended from the creel to supply the roving to the draft device has a pitch of the roving winding 12 at a predetermined pitch in a portion corresponding to the portion of the spindle 5 having a pitch of P1.
At P2, the running state of the roving from the roving winding 12 to each drafting device is arranged to be the same, and at a portion corresponding to the connecting portion of the spindle rail 3, the predetermined pitch P2 is increased by an amount corresponding to the increase of the spindle pitch in the same portion from the predetermined pitch P2 They are arranged at large intervals.

In the spinning machine, the pipe thread transfer operation or the automation of the transfer of the thread to the next step (winder step) is performed. Conventionally, in order to cope with such automation, the spindle pitch is kept constant over the entire length of the machine stand, and the tube replacement device is provided with a bobbin gripper at a pitch corresponding to the spindle pitch. In this spinning machine, the spindle pitch is different from that of the other portion at the connecting portion of the spindle rail 3, but the pitch of the portion is 2 times the pitch of the other portion.
Since it is set to double, in the all-mass simultaneous switching device, it is easy to cope by omitting the bobbin gripping portion corresponding to the portion. Further, in the intermittently moving refilling device, when the abnormality detection device is activated due to the bobbin not being gripped in the relevant portion, it can be dealt with by canceling the abnormality detection device and continuing the operation.

It is advantageous to use a peg tray having a diameter corresponding to the spindle pitch for the automatic conveyance of the thread, but in the spinning machine of this embodiment, a spare peg tray is provided at a position corresponding to the connecting portion of each spindle rail 3. By arranging it, it is possible to cope with an automatic tube yarn transport system using a peg tray.

Second Embodiment Next, a second embodiment will be described with reference to FIG. In this embodiment, the spindle pitch is set to a predetermined pitch P1 except for the connection portion of the spindle rail 3 and twice the predetermined pitch P1 at the connection portion, as in the previous embodiment. Is different from the previous embodiment in that the pitch is set at a constant pitch P2 over the entire length of the machine base. Since the machine length of the spinning machine is determined by the pitch P2 of the roving winding 12, if the pitch P2 is set to be constant over the entire machine length as in this embodiment, the connecting portion of the spindle rail 3 In this case, even if the spindle pitch is set to be twice as large as the other parts, the total length of the spinning frame 1 does not become long unlike the above-described embodiment. Further, since the pitch P2 of the roving winding 12 is constant over the entire length of the machine stand, the roving changing operation by the roving changer can be performed without any trouble as in the related art.

Third Embodiment Next, a third embodiment will be described according to fifth and sixth embodiments. In this embodiment, the connecting portion of the spindle rail 3 is
This embodiment is different from the above-mentioned embodiments in that the intermediate frame 2 is set to be an intermediate portion between the two intermediate frames 2 instead of the corresponding portion. The spindle rails 3 are provided with spindles 5 at a predetermined pitch P1, and the spindle rails 3 are fixed to the intermediate frame 2 arranged at a position corresponding to the center of the two spindles 5 by bolts 4. Although the spindle pitch at this location is a predetermined pitch P1, the tool for tightening the bolt 4 does not interfere with the spindle 5 because the attachment location of the bolt 4 corresponds to the center of the two spindles 5. The spindle rail 3 has bolts 4 and nuts at its joints via a plate-like joint 13.
It is connected and fixed by 14. Since the pitch of the spindle 5 in the connecting portion is set to be twice that of the other portions,
The tool for tightening the bolt 4 does not interfere with the spindle 5.

The present invention is not limited to the above embodiments. For example, the spindle pitch at the connecting portion of the spindle rail 3 is not twice (2 + n) times the predetermined pitch P1 of other portions (n is a natural number). Alternatively, the invention may be applied to a ring twisting machine instead of a ring spinning machine. When the position of the connecting portion of the spindle rail 3 and the connecting portion of the bottom roller shaft 6 are shifted in the longitudinal direction of the spinning machine, only the spindle pitch of the spindle 5 of one of the connecting portions is changed to the N of the spindle pitch of the other portion. Alternatively, the spindle pitch of the spindles 5 of both connecting portions may be N times the spindle pitch of the other portions.

[Effects of the Invention] As described above in detail, according to the present invention, when the spindle pitch at the connecting portion of the spindle rail is set to N times (N is an integer of 2 or more) the predetermined pitch of the other portions,
The attachment point of the bolt for connecting the spindle rail can be set at a position where the tool for tightening the bolt and the spindle do not interfere with each other, and the connection work is facilitated. Further, when the spindle pitch of the connecting portion of the bottom roller shaft is set to N times the predetermined pitch of the other portion, both the bearing and the coupling can be attached to the connecting portion of the bottom roller shaft. At the time of assembly and maintenance, the bottom roller shaft can be separated from its roller stand and detached from the roller stand for each divided portion, thereby facilitating the work. Furthermore, even when the spindle pitch is different from the others, the value is an integral multiple of the specified pitch.Therefore, when adopting a yarn conveying system using a peg tray, the spindle pitch is set on the guide rail of the peg tray corresponding to the different part. By arranging the peg trays, it is possible to easily cope with the problem, and to cope with the work of changing pipes by the changer.

When the spindle rail connection portion and the bottom roller connection portion are made to correspond to each other, and the spindle pitch of the connection portion is set to N times (N is an integer of 2 or more) the spindle pitch of the other portions, the spinning machine may be a unit. As a result, the transfer from the spinning factory to the spinning factory becomes easy, and the assembly at the spinning factory becomes easy.

Further, in the invention according to the fifth aspect, in addition to exhibiting the same effect as described above, since the pitch of the roving wound on the creel is set at the same pitch over the entire length of the machine base,
Even if the spindle pitch is set to N times (N is an integer of 2 or more) of the other portions in the connection portion of the spindle rail, the total length of the spinning frame does not become long. Further, since the pitch of the roving is constant over the entire length of the machine base, the roving change operation by the roving changer can be performed without any trouble as in the related art.

[Brief description of the drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a schematic front view, FIG. 2 is a partial front view of a spindle rail connecting portion, and FIG. 3 is a bottom roller connecting portion. FIG. 4 is a schematic plan view of the second embodiment, and FIGS.
FIG. 5 shows a third embodiment. FIG. 5 is a schematic partial front view, FIG. 6 is an enlarged view of arrow A in FIG. 5, FIG. 7 is a conventional schematic front view, and FIG. FIG. 9 is a partial cross-sectional plan view of a bottom roller connecting portion, FIG. 10 is a partial front view of a spindle rail connecting portion, and FIG. 11 is a diagram of a full / empty bobbin transfer device using a peg tray and a spindle. It is a principal part schematic plan view which shows a relationship. Intermediate frame 2, spindle rail 3, spindle 5,
Bottom roller shaft 6, roving winding 12, pitch P1, P2.

Claims (5)

(57) [Claims] A spindle rail and a bottom roller are divided into a plurality of parts, and a spindle pitch of at least one connecting point of the spindle rail and the bottom roller is set to N times (N is an integer of 2 or more) of a spindle pitch of another part. Spinning machine. 2. A spinning machine wherein a spindle rail and a bottom roller are divided into a plurality of parts, and a spindle pitch at a connecting point of the spindle rail is N times (N is an integer of 2 or more) of a spindle pitch of another part. 3. A spindle rail and a bottom roller are divided into a plurality of parts, and a spindle pitch at a connecting point of the bottom roller is N times a spindle pitch of another part (N is an integer of 2 or more).
Spinning machine. 4. A spindle rail and a bottom roller are divided into a plurality of parts, a spindle rail connection part and a bottom roller connection part are made to correspond to each other, and a spindle pitch of the connection part is N times (N is a spindle pitch) of another part. (An integer of 2 or more). 5. A spindle rail and a bottom roller are divided into a plurality of parts, and a spindle pitch of at least one connecting point of the spindle rail and the bottom roller is set to N times (N is an integer of 2 or more) of a spindle pitch of another part. A spinning machine in which the pitch of the roving wound on the creel is the same pitch over the entire length of the machine.