JPH1077529A - Apparatus for preventing magnet type clearer roller from dropping in spinning machine and tool for preventing dropping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply produce a dropping supporting tool equipped with a function for preventing contact of a magnet type clearance roller with a pneumatic flute. SOLUTION: A pair of dropping preventing plates 10 is fixed behind the lower part of the front bottom roller 3 on the opposite side of a roller stand 2. The dropping preventing plate 10 is formed by folding processing and an engaging part 13 for preventing rolling up of a magnet type clearance roller 4 magnetically attached to the lower part of the front bottom roller 3 and vertically moved while rotating and an engaging part 13 for preventing contact with a pneumatic flute 5 are formed. A pair of engaging parts 13 and 14 are linearly formed in such state that the pair of engaging parts 13 and 14 are made to linearly extend so as to wider open as the engaging parts 13 and 14 move upwardly and open and the clearance roller 4 dropped from the front bottom roller 3 is received by both engaging parts 13 and 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine such as a spinning machine and the like, which prevents a magnetic clearer roller attached to a lower portion thereof by a magnetic force for cleaning a front bottom roller from falling off. The present invention relates to a device and a fall prevention device.

[0002]

2. Description of the Related Art In a spinning machine such as a spinning machine, a so-called streak roller is used as a draft bottom roller. Therefore, fiber debris accumulates in a groove of a streak portion which comes into contact when a fiber bundle (fleece) is drafted at the time of drafting. easy. If fiber debris accumulated in the groove of the streak adheres to the fleece, the quality of the yarn is deteriorated. Therefore, cleaning to remove the fiber debris adhering to the streak is required to improve the yarn quality.

Conventionally, a magnet type clearer roller (for example, Japanese Patent Application Laid-Open No. 3-51328) has been proposed to clean fiber debris attached to a streak portion of a front bottom roller during a machine operation.
No., Japanese Unexamined Patent Publication No. Hei.
No. 101620, and Japanese Utility Model Application Laid-Open No. 51-48430). The magnetic type clearer roller has a flocking formed on its surface capable of adsorbing fiber debris, and has a built-in magnet for magnetically attaching the roller itself to the draft bottom roller. The magnet type clearer roller is magnetically attached to the lower part of the front bottom roller in a state of contact with the streak, and rotates along with the rotation of the front bottom roller, thereby absorbing and removing fiber waste attached to the streak. ing.

When fiber debris accumulates on the surface of the magnet type clearer roller and the diameter thereof increases to a certain extent, its magnetic adhesion is relatively weakened, and the magnet type clearer roller falls from the front bottom roller. Such a fall of the magnet type clearer roller may cause damage to a lower machine base. In order to solve such a problem, for example, JP-A-8-027631 discloses a spinning machine having a falling-off prevention plate capable of receiving a dropped magnetic clearer roller.

More specifically, as shown in FIG. 9, a pneumatic flute 52 is provided near and below the front bottom roller 51 so as to extend in parallel therewith. It is attached so as to rotate with the magnetized state 51. A pair of falling-off prevention plates 55 (only one side is shown in the drawing) are fixed to the opposing surfaces of the adjacent roller stands 54 by bolts 56. Locking portions 55a, 55
The magnet-type clearer roller 53 is formed so that both ends of the magnet-type clearer roller 53 are received by the arc surface of the locking portion 55b.

Further, a magnet type clearer roller 53
Is magnetically attached to the lower portion of the front bottom roller 51, and is merely rotated by the rotation of the front bottom roller 51, so that the position moves up and down without being stabilized. And
By contacting the locking portion 55a, upward movement toward the fleece side is prevented at a certain position.

When the magnet type clearer roller 53 directly hits the pneumatic flute 52, wear of the pneumatic flute 52 becomes a problem, and as shown in FIG. Had been fitted.

[0008]

However, since the pair of protectors 57 is fixed to the pneumatic flute 52 at a position slightly shifted toward the center from both ends of the magnet type clearer roller 53, for example, fly or the like adheres to the protector 57. In this state, when the magnet type clearer roller 53 hits the protector 57, the posture may be shifted obliquely due to a loss of right and left balance. This hinders the rotation of the magnet type clearer roller 53, thereby lowering the cleaning efficiency and causing a drop. In addition, the cost of parts of the protector 57 and the labor for assembling the protector 57 have also caused a rise in the manufacturing cost of the spinning machine.

Further, since the locking portion 55b has an arcuate surface, it is difficult to form the falling-off prevention plate 55 by bending. For this reason, the fall prevention plate 5
No. 5 was manufactured by press working capable of processing complex shapes such as arc surfaces. As a result, a dedicated press die is required, and this has caused a rise in the manufacturing cost of the falling-off prevention plate 55.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to easily manufacture a drop-off support having a function of preventing a magnetic clearer roller from contacting a new muffler. It is an object of the present invention to provide a fall prevention device and a fall prevention device for a magnet type clearer roller in a spinning machine.

[0011]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a pair of magnet-type clearer rollers which can be attached to a lower portion of a front bottom roller by magnetic force can be received at both ends thereof. In a spinning machine provided with a fall prevention device provided on each of opposing surfaces of adjacent roller stands and a pneumatic flute for sucking and removing a fleece at the time of thread breakage, the fall prevention device is magnetically attached to a lower portion of the front bottom roller. An upper limit regulating portion that regulates an upper limit of a moving range of the magnetic clearer roller that is rotated and moved up and down; and a moving range of the magnetic clearer roller that prevents the magnetic clearer roller from coming into contact with the pneumatic flute during the entrainment. A lower limit regulating unit for regulating a lower limit, and the Gunetto type support surface of each clearer rollers received capable has a pair of the receiving support portion which is provided separately so as to be widened as above.

According to a second aspect of the present invention, there is provided the spinning machine according to the first aspect, wherein the magnet-type clearer roller has a falling-off preventing device, wherein the falling-off preventing device includes a direction in which the pair of receiving support portions expands. Are formed by bending to extend linearly.

According to a third aspect of the present invention, in the apparatus for preventing a magnetic clearer roller from falling off in the spinning machine according to the first or second aspect, the pair of receiving support portions is formed by the magnetic clearer roller. A first support portion that can contact the vertical line passing through the center on the pneumatic flute side, and the magnet-type clearer roller can contact the opposite side of the first support portion across the vertical line; The first support portion also serves as the lower limit regulating portion.

According to a fourth aspect of the present invention, in the spinning machine according to the third aspect, the second support portion is provided with the first support portion in a direction in which the two support surfaces are expanded. It is formed shorter than the support portion.

According to a fifth aspect of the present invention, in the spinning machine according to any one of the first to fourth aspects of the present invention, in the apparatus for preventing a magnetic clearer roller from falling off, the fall-off preventing device is provided on both side surfaces of the roller stand. One set is integrally formed in a shape that can be fitted to the roller stand.

According to a sixth aspect of the present invention, the fall-off preventing device has the structure according to any one of the first to fifth aspects. According to the first and sixth aspects of the present invention, the streak is cleaned by the magnet type clearer roller that rotates with the rotation of the front bottom roller during operation of the spinning machine stand. The fleece at the time of thread breakage is sucked and removed by the pneumatic flute. The magnet type clearer roller moves up and down while rotating with the rotation of the front bottom roller. At this time, the magnet type clearer roller is raised to a position where there is a risk of contact with the fleece due to the position being regulated by abutting against the upper limit regulating portion of the pair of fall prevention devices provided on the opposing surface of the adjacent roller stand. And the position is regulated by contacting the lower limit regulating portion, thereby preventing contact with the pneumatic flute. The magnet-type clearer roller that has fallen from the front bottom roller is received by each support surface that expands upward above a pair of receiving support portions provided on the fall prevention device. Since the pair of receiving support portions are formed separately so as to have a support surface that expands upward, it is relatively simple to form these as compared to the case where the receiving portion is a single curved surface. It is possible to adopt a simple processing method (for example, bending).

According to the second and sixth aspects of the present invention, in addition to the function of the first aspect, the pair of receiving support portions can be extended linearly in each of the directions in which they expand. Since the bending process is performed, the manufacturing method is simplified by employing the bending process.

According to the third and sixth aspects of the present invention, in addition to the functions of the first or second aspect,
Since the first support portion also serves as the lower limit regulating portion, the shape of the fall-off preventing device is simplified, and its manufacture is further simplified.

According to the fourth and sixth aspects of the present invention, in addition to the function of the third aspect of the invention, in the direction in which the two support surfaces are expanded, the second support portion is larger than the first support portion. Is formed short, so that a mounting opening for mounting the magnet type clearer roller is widely formed between the upper limit regulating portion and the second support portion.

According to the fifth and sixth aspects of the present invention, in addition to the functions of the first to fourth aspects of the present invention, the drop-off preventing devices are provided on both side surfaces of the roller stand. Since the set is integrally formed in a shape that can be fitted to the roller stand, fitting the fall prevention device integrally formed with the set to the roller stand reduces the labor of assembling the fall prevention device by half. .

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a front bottom roller 3, a second bottom, and a roller stand 2 arranged at predetermined intervals in the machine longitudinal direction are provided on both left and right sides (only one side is shown) of the machine frame of a spinning machine 1 as a spinning machine. A roller and a back bottom roller (both not shown) are rotatably supported. The front bottom roller 3 is composed of a so-called streak roller.
The number of (for example, six) streaks 3a (shown in FIG. 2) corresponding to the number of weights between them is formed between them. A large number of grooves substantially parallel to the axial direction of the front bottom roller 3 are formed in the streak portion 3a.

The magnetic clear roller 4 (hereinafter simply referred to as clear roller) shown in FIGS. 1 and 2 has a cylindrical shape with an axial length slightly shorter than the interval between the roller stands 2.
A flocking 4a capable of adsorbing fiber waste is formed on the surface thereof,
A plurality of magnets (not shown) for magnetically attaching to the streak portion 3a of the front bottom roller 3 are built in the inside thereof along the longitudinal direction. The clear roller 4 is shown in FIG.
As shown in FIG. 2, it is used by being magnetically attached to the lower rear portion of the front bottom roller 3 and is rotated by the rotation of the front bottom roller 3 during operation of the spinning machine, so that fiber debris adhering to the streak portion 3a causes flocking on its surface. 4a adsorbs and removes.

The spinning machine 1 is provided with a pneumatic clearer device, and as shown in FIG.
In the vicinity of the lower part, one pneumatic flute 5 is arranged between each roller stand 2 so as to extend in parallel with the front bottom roller 3. Each pneumatic flute 5 is connected to a pipe 6 by a pneumatic duct (not shown) extending in the center of the machine.
Connected to each other. New Muffler 5
A plurality of air inlets 5a are formed at the front end portion at positions opposite to the vicinity of the center of each stripe portion 3a. The pneumatic clearer device is driven during the machine operation, and the inside of the pneumatic duct is depressurized by this driving, and a negative pressure is generated in each intake port 5a of the pneumatic flute 5, and fleece or the like at the time of thread breakage is passed through the intake port 5a. As a result, the suction is removed from the pneumatic flute 5 to the pneumatic duct.

As shown in FIGS. 1 and 2, on opposite side surfaces 2a of adjacent roller stands 2 (only one side is shown in FIG. 1), near a position corresponding to a mounting position of the clearer roller 4, A falling-off prevention plate (fixing plate) 10 as a falling-off prevention tool is fixed in a state of facing each other.

As shown in FIGS. 3 and 4, the falling-off prevention plate 10 is manufactured by bending a metal plate cut into a predetermined shape, and a base plate 11 is formed.
The upper end thereof is formed with a locking portion 12 as an upper limit restricting portion which bends at a right angle and extends, and a lower end thereof has a receiving support portion which also bends at a right angle and extends. And a locking portion 13 as a first support portion, and a locking portion 14 as a receiving support portion and as a second support portion
Are formed respectively. The locking portion 12 is formed on a flat surface having a certain width. In addition, the locking portions 13 and 1
Numerals 4 denote flat surfaces each having a predetermined width so as to spread upward at a predetermined angle with respect to each other, and their lower ends are opposed to each other with a gap shorter than the diameter of the clearer roller 4. It is in. The length in the direction in which both are expanded is shorter in the locking portion 14 than the locking portion 13 by the amount cut off, and between the locking portion 12 and the locking portion 14. An opening (gap) 15 that is sufficiently wider than the diameter of the clearer roller 4 is formed.

As shown in FIG. 2, a pair of falling-off prevention plates 10 fixed to the side surfaces 2a of the adjacent roller stands 2 are provided.
The spacing between the locking portions 12, 13, and 14 provided in the front bottom roller 3 in the longitudinal direction is shorter than the axial length of the clearer roller 4. Therefore, the clearer roller 4 magnetically attached to the lower portion of the front bottom roller 3
Has a positional relationship in which both ends of the peripheral surface can be engaged with the locking portions 12, 13, 14.

As shown in FIGS. 3 and 4, the base plate 1
A truncated cone-shaped convex portion 11a is formed in the lower part of the center at the lower part of the center, and a screw insertion hole 11b is formed in the center thereof. A locking projection 11c is formed at the center of the base plate 11 so as to protrude to the rear side. On both side surfaces 2a of the roller stand 2, a fall-prevention plate 10 is provided.
A screw hole and a small hole (not shown) for fixing the holes are respectively formed. The falling-off prevention plate 10 is the locking projection 1
1c into the small holes and screw holes 1 into the screw holes.
1b with the truss screws 16 fastened through
As shown in FIG. 2, the roller stand 2 is fixed to the side surface 2a at two points. The falling-off prevention plate 10 is prepared in two types of left and right shapes to be mirror-finished, and is fixed to the side surface 2a of the roller stand 2 so that the locking portion 13 is on the pneumatic flute 5 side.

In a state in which the fall-prevention plate 10 is fixed to the side surface 2a of the roller stand 2, the upper surface of the locking portion 13 is slightly higher than the upper surface of the pneumatic flute 5 as shown in FIG. The flute 5 is arranged at a predetermined posture angle along the inclination of the flute 5. In the present embodiment, the pneumatic flute 5
The protector is not attached to.

Next, the operation of the spinning machine provided with the falling-off prevention plate 10 configured as described above will be described. When the clearer roller 4 is used, the clearer roller 4 is inserted through the opening 15 on the rear side of the fall prevention plate 10 and magnetically attached to the lower rear portion of the front bottom roller 3.

When each bottom roller 3 and the like are driven to rotate during the operation of the machine, the fleece (not shown) is drafted, and the clearer roller 4 moves in the direction of the arrow in FIG. The fiber debris that has turned around and adhered to the streak portion 3a is adsorbed and removed by the flocking 4a on the surface of the clearer roller 4.

The clearer roller 4 moves up and down if it rotates. At this time, the movement of the clearer roller 4 toward the fleece side is prevented by restricting the upward movement by contacting both ends of the peripheral surface of the clearer roller 4 with the locking portion 12. Further, since the both ends of the peripheral surface of the clearer roller 4 abut against the locking portion 13 as shown in FIG.
Is prevented from coming into contact with the upper surface of the substrate. Therefore, even if the pneumatic flute 5 is not provided with a protector, damage such as abrasion of the pneumatic flute 5 by the clearer roller 4 is prevented.

Since the clearer roller 4 only comes into contact with the locking portion 13 at both ends of its peripheral surface, it rotates smoothly. Further, even if fly waste or the like adheres to the locking portion 13, even if the sliding friction is unbalanced at both ends, the posture becomes difficult to tilt obliquely. That is, the clearer roller 4 rotates while always maintaining a posture parallel to the front bottom roller 3. As a result, obstruction of the clearer roller 4 from rotating together with the clearer roller 4 due to the oblique inclination of the clearer roller 4 and dropping from the front bottom roller 3 are avoided as much as possible.

When the clearer roller 4 adsorbs the fiber waste and its diameter (including the fiber waste) becomes large and the magnetic adhesion decreases,
The clearer roller 4 falls off the front bottom roller 3. The dropped clearer roller 4 is received at both ends of the peripheral surface thereof by a pair of locking portions 13 and 14 which expands upward. That is, the clearer roller 4 is located closer to the pneumatic flute 5 than the vertical line passing through the center thereof,
Abuts on the upper surface of the locking portion 14 on the opposite side to the pneumatic flute 5 across the vertical line,
Both ends of the peripheral surface are received at two points. As a result, it is possible to prevent the clearer roller 4 from falling on the floor surface, thereby contaminating the surface of the clearer roller 4 and scattering the fiber waste adsorbed by the impact at the time of dropping, and also prevent the machine base from being damaged by hitting the machine base.

As described above, according to the present embodiment, the following effects can be obtained. (A) When the clearer roller 4 moves up and down while rotating with the rotation of the front bottom roller 3,
Since both ends of the peripheral surface abut against the locking portion 13 and further downward displacement is regulated, the protector 5 described in the related art is used.
It is possible to prevent the clearer roller 4 from coming into contact with the pneumatic flute 5 without providing the same. as a result,
New protector 57, which has been used in the past,
No need to attach to Further, since the clearer roller 4 comes into contact with the locking portion 13 at both ends of its peripheral surface, it is easy to avoid the posture from being inclined. Due to this, it is possible to prevent the falling off of the front bottom roller 3 as much as possible.

(B) Locking portions 13, 1 for receiving when clearer roller 4 falls off front bottom roller 3.
Since the upper surface 4 has a flat surface (linear shape) that expands upward, the falling-off prevention plate 10 can be manufactured relatively easily by bending.

(C) Since the locking portion 13 has both the function of preventing contact with the pneumatic flute 5 and the function of receiving the falling off, the locking portion 12 to be formed by bending the falling-off prevention plate 10 is formed. The number of the plates 13 and 14 can be reduced to three, and the manufacture of the drop-prevention plate 10 can be further simplified by simplifying its shape.

(D) Since the locking portion 14 is formed to be shorter than the locking portion 13 so as to be cut off, the clearer roller 4
The opening 15 serving as a mounting port of the clearer roller 4 can be secured widely, and the mounting and dismounting of the clear roller 4 can be facilitated.

It should be noted that the present invention is not limited to the above embodiment, and may be configured as follows, for example, without departing from the spirit of the invention. (1) As shown in FIG.
It is also possible to adopt a configuration in which a pair of falling-off prevention plate portions attached to a are integrally connected to each other in a U-shaped cross section that can be fitted to the roller stand 2. That is, the falling-off prevention plate 21 as a falling-off prevention tool is integrally formed by bending a pair of plate portions 21a each having the same locking portions 12 to 14 as in the first embodiment, via the connecting portion 21b. ing. A locking projection 21c is formed near the center of each plate portion 21. As shown in FIG. 6, the drop-prevention plate 21 is fitted so as to sandwich the roller stand 2 with the locking projection 21c inserted into the locking hole 2b formed in the side surface 2a of the roller stand 2. .

According to this configuration, it is only necessary to fit the drop-off prevention plates 21 to the respective roller stands 2 one by one and assemble them, and furthermore, they can be assembled without using bolts or the like. As compared with the drop-off prevention plate 1, the time required for assembling the drop-off prevention plate 21 can be reduced to almost half.

(2) As shown in FIG. 7, a falling-off prevention plate 25 is formed as a falling-off prevention tool so as to have a symmetrical shape in the front-rear direction (left-right direction in FIG. 7) and fixed to both side surfaces 2a of the roller stand 2. The components of the falling-off prevention plate 25 may be shared. Of course, when attached to the opposing surface of the roller stand 2, the locking portions 12, 13, 14 of both the drop-prevention plates 25 may be arranged at the same position, and for example, other than the locking portions 12, 13, 14 Similar effects can be expected even when the base plate 11 is not configured to be symmetrical.

(3) In the above-mentioned embodiment, the locking portion 13 has a function of controlling the downward movement of the clearer roller 4 and a function of receiving the dropped clearer roller 4 in one. 8, a locking portion 27 as a lower limit regulating portion for regulating the downward movement of the clearer roller 4 and a receiving support for receiving the dropped clearer roller 4, such as a falling-off preventing plate 26 as a falling-off preventing device. It is also possible to adopt a configuration that constitutes a part and is provided separately in two with a locking part 28 as a first support part. According to this configuration as well, it is possible to easily manufacture the falling-off prevention plate 26 by bending without applying the clearer roller 4 to the pneumatic flute 5 as in the above-described embodiment.

(4) The lower ends of the locking portions 13 and 14 as the first support portion and the second support portion may be in contact with each other as a result of the bending process. (5) In the above-described embodiment, the locking portion 13 may be a roller that rotates in contact with the clearer roller 4. According to this configuration, the position of the clearer roller 4 is regulated by contacting the roller, and the sliding friction applied to the clearer roller 4 during the position regulation can be reduced. It is easy to hold in parallel.

(6) In the above-described embodiment and the like, the locking portions 12, 1
The projections 3 and 14 are formed by bending, but the plate members and the like are welded to the base frame 11 to form the respective locking portions 12 and 1.
It is good also as composition which forms 3 and 14.

(7) The stopper is not limited to metal. For example, it may be made of resin. (8) The present invention may be applied to other spinning machines other than the spinning machine. The technical idea grasped from the embodiment and not described in the claims will be described below together with its effects.

(A) In the invention according to any one of the first to sixth aspects, the fall-off preventing device is formed in a shape symmetrical in the front-rear direction. According to this configuration, the parts of the pair of fall prevention tools provided on the opposing surfaces of the adjacent roller stands can be shared.

(B) Claims 1 to 6 and (a)
In the invention according to any one of the above, the lower ends of the first support portion and the second support portion are separated from each other. According to this configuration,
Since the first support portion and the second support portion to be expanded may have a gap at the lower end side that can receive the magnet type clearer roller, the first support portion and the second support portion can be expanded by increasing the gap. The length in each opening direction can be kept relatively short, and the fall prevention device can be reduced in size accordingly.

(C) The spinning machine is provided with the falling-off preventing device according to any one of claims 1 to 5, and (a) and (b). According to this configuration, the spinning machine
The same effect as the invention described in any one of claims 1 to 5, and (a) and (b) can be obtained.

[0048]

As described in detail above, according to the first and sixth aspects of the present invention, the lower limit regulating portion regulates the lower limit of the moving range of the magnetic clearer roller in order to prevent the magnetic clearer roller from contacting the new muffler. In addition to the magnet type, the receiving part that receives the magnet type clearer roller that has fallen from the front bottom roller is configured as a pair of receiving support parts that separate the supporting surface that expands upward and separates, so that the magnet type It is possible to prevent problems caused by the contact of the clearer roller with the pneumatic flute, and to simplify the processing when manufacturing the drop-off support.

According to the second and sixth aspects of the present invention, since the pair of receiving support portions are formed by bending in a state of linearly extending in each of the expanding directions, the falling support is realized by employing the bending process. The tool can be manufactured more easily.

According to the third and sixth aspects of the present invention, since the first support portion also serves as the lower limit regulating portion, the shape of the fall prevention device is simplified, and the manufacture of the fall prevention device is further simplified. It can be.

According to the fourth and sixth aspects of the present invention, the length extending in the expanding direction is smaller than the length of the first support portion by the length of the second support portion.
Since the support portion is formed shorter, a wide mounting opening for mounting the magnetic clearer roller to the front bottom roller can be secured between the upper limit regulating portion and the second support portion.

According to the fifth and sixth aspects of the present invention, a set provided on both side surfaces of the roller stand is integrally formed into a shape that can be fitted to the roller stand to constitute a fall prevention device. By assembling the fall-prevention device to the roller stand, the labor for assembling the fall-prevention device can be reduced by almost half.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a main part of a spinning machine provided with a falling-off prevention plate.

FIG. 2 is a partial side view of the spinning machine.

FIG. 3A is a front view of a fall prevention plate, and FIG.
II-II sectional drawing.

FIG. 4 is a plan view of a fall prevention plate.

FIG. 5 is a perspective view of another fall prevention plate.

FIG. 6 is a side view of the falling-off prevention plate similarly attached to the roller stand.

FIG. 7 is a front view of a falling-off prevention plate different from FIG. 5;

FIG. 8 is a front view of a falling-off prevention plate different from FIG. 7;

FIG. 9 is a front sectional view of a main part of a spinning machine provided with a conventional falling-off prevention plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Spinning machine as a spinning machine, 2 ... Roller stand, 3 ... Front bottom roller, 4 ... Magnet type clear roller, 5 ... New muffler, 10, 21, 25, 26 ...
A fall-off prevention plate as a fall-off prevention device, 12: a locking portion as an upper limit regulating portion, 13: a receiving support portion, and a locking portion as a lower limit regulating portion and a first support portion, 14: a receiving support portion And a locking portion as a second support portion, a locking portion as a lower limit regulating portion, and a locking portion as a receiving support portion and as a first support portion.

Claims (6)

[Claims] 1. A pair of fall-off prevention devices capable of receiving the fall of a magnetic clearer roller attached to a lower portion of a front bottom roller by magnetic force at both ends thereof are provided on opposing surfaces of adjacent roller stands, respectively. In the spinning machine provided with a pneumatic flute for sucking and removing a fleece at the time, the falling-off preventing device regulates an upper limit of a moving range of the magnetic type clearer roller that is magnetically attached to a lower portion of the front bottom roller and moves up and down while rotating. An upper limit regulating unit, a lower limit regulating unit that regulates a lower limit of a moving range of the magnetic clearer roller in order to prevent the magnetic clearer roller from contacting the pneumatic flute during the rotation, and a magnetic clearer that has fallen from the front bottom roller. Each support surface is upward so that rollers can be received A fall prevention device for a magnet-type clearer roller in a spinning machine including a pair of receiving support portions that are separately provided so as to be widened. 2. The magnetic clearer of a spinning machine according to claim 1, wherein the drop-off preventing device is formed by bending the pair of receiving support portions so as to extend linearly in each of the expanding directions. Roller fall prevention device. 3. A pair of receiving support portions, the first support portion being capable of abutting on the pneumatic flute side with respect to a vertical line passing through the center of the magnet type clearer roller, and the first support portion. And a second support portion to which said magnet-type clearer roller can abut on the opposite side of said vertical line, wherein said first support portion also serves as said lower limit regulating portion. 3. A device for preventing a magnetic clearer roller from falling off in a spinning machine according to item 1. 4. In the direction in which the two support surfaces expand,
The device for preventing a magnetic clearer roller from falling off in a spinning machine according to claim 3, wherein the second support portion is formed shorter than the first support portion. 5. The drop prevention device according to claim 1, wherein one set provided on both side surfaces of the roller stand is integrally formed in a shape that can be fitted to the roller stand. For preventing the magnetic clearer roller from falling off in the spinning machine. 6. The drop-off prevention device according to claim 1, wherein