JPH07316930A - Cleaning apparatus for draft roller in spinning frame - Google Patents

Abstract

PURPOSE:To prevent the opening of a hole on a flute by the repeated collision of a holder or a supporting tool constituting a cleaning apparatus by the inertia of restoring motion and the leaving of a checking member in a disengaged state at a position unable to engage with a claw. CONSTITUTION:A holder 6 swingably supported on a front bottom roller 3 through a supporting tool 7 is displaced upward by the engagement of the hook 9a of a hook spring 9 with the claw 10a of a kicker 10 integrally rotating with a second bottom roller 4 and is moved downward by the restoration force of a deformed stop spring 11 by releasing the engagement. The tip end of a rubber pad 8 is intermittently slid on a ridge part 3a according to the swinging motion of the holder 6 to clean the ridge part 3a. A pin 15 restricting the swinging range of the holder at the flute-side is screwed to the side face of a roller stand 2 between the holder 6 of the standard position and the flute 13. A cushioning rubber 16 made of a urethane rubber is inserted into the top of the pin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draft roller cleaning device in a spinning machine for removing fiber waste adhering to streaks of a front bottom roller.

[0002]

2. Description of the Related Art In a spinning machine, a so-called streak roller is used as a bottom roller of a draft roller. The streak roller has a streak portion in which a large number of grooves parallel to the axial direction thereof are formed, and the roving and the fleece are drafted at the streak portion. The fiber waste tends to collect in the groove of the streak portion at the time of drafting, and if the fiber waste collected in the groove of the streak part falls from the streak part and adheres to the fleece, the quality of the yarn is deteriorated. Therefore, in order to improve the yarn quality, it is desirable to regularly clean the streaks or prevent fiber waste from accumulating in the grooves of the streaks.

Conventionally, there is a swing clearer which prevents fiber dust from accumulating in the streaks of the draft bottom roller during operation of the machine base (for example, Japanese Patent Laid-Open No. 63-159536 and Japanese Utility Model Laid-Open No. 63-94979). Gazette). As shown in FIG. 4, for example, the swing clearer 42 for cleaning the streak portion 41a of the front bottom roller 41 is used while being suspended and supported behind the front bottom roller 41. That is, the holders 43 forming the swing clearer 42 are arranged between the roller stands 44, and the holders 43 are attached with the rubber pads 45 in the number corresponding to the number of weights between the roller stands 44. The holder 43 is suspended and supported integrally with the rubber pad 45 with the tip of the rubber pad 45 pressed against the streak portion 41a around the front bottom roller 41 via a support tool 46. The hook spring 47 extending from substantially the center of the holder 43 is arranged with its tip in contact with the lower surface of the second bottom roller 48. A kicker 49 is fitted to the second bottom roller 48 integrally with the second bottom roller 48 at a position corresponding to the hook spring 47 on the smooth shaft portion where the streak portion of the second bottom roller 48 is not formed. A hook 47a is formed at the tip of the hook spring 47 so that it can be engaged with the claw 49a of the kicker 49. In addition, the tip end of the stop spring 50 extended from the holder 43 comes into contact with the lower surface of the second bottom roller 48, so that the holder 43 displaced upward in FIG.
Is urged to return to the reference position shown by the solid line.

During operation of the machine base, the tip of the rubber pad 45 pressed against the streak portion 41a vibrates in small steps as the front bottom roller 41 rotates. In addition, the claw 49a of the kicker 49 hooks the hook 47a of the hook spring 47 for each rotation of the second bottom roller 48, and the support 46 and the holder 43 as a whole are displaced upward with the front bottom roller 41 as the center, and the claw is also moved. The engagement between 49a and the hook portion 47a is released, and the restoring force of the stop spring 50 causes downward displacement to the original position. Along with the swinging motion of the support tool 46 and the holder 43 as a whole, the rubber pad 45 integrally swings intermittently. By vibrating and swinging the rubber pad 45, the muscle portion 41a is reliably cleaned, and the muscle portion 41a is cleaned.
It is possible to prevent fiber waste from accumulating in the groove a.

On the other hand, the spinning machine removes the fleece continuously fed from the front bottom roller 41 at the time of yarn breakage so as not to get entangled with the yarns of the adjacent weights.
Some have 1. The New Makuriara device 51 has a flute 52 extending in the longitudinal direction of the machine base near the bottom of the front bottom roller 41, and a fleece continuously fed from the front bottom roller 41 when a yarn breaks from the suction port of the flute 52. Are sucked away.

[0006]

However, the support 46
When the holder or the holder 43 is restored after being displaced upward, the momentum causes the support tool 46 to instantaneously flute the flute 5 as shown by the chain line in FIG.
In some cases, it hit 2. When the support 46 hits the flute 52 repeatedly, holes are opened even if the flute 52 is made of metal. As a result, air may leak from the hole and the suction force of the flute 52 may decrease, which may cause a problem. If the suction force of the flute 52 is reduced, the fleece at the time of yarn breakage cannot be surely sucked and removed, and the function of the flute 52 will not be fulfilled.

Further, the supporting member 46 for supporting the holder 43 by the momentum at the time of restoration largely passes the reference position thereof, and the hook portion 47a of the hook spring 47 causes the second bottom roller 48 to move.
There was a case where it was left as it was separated from the lower surface of the.
In this case, since the hook portion 47a of the hook spring 47 cannot engage with the claw portion 49a of the kicker 49, the rocking movement of the rubber pad 45 is not performed, and the muscle portion 41a is not sufficiently cleaned.

The present invention has been made in order to solve the above-mentioned problems, and the purpose thereof is to repeatedly make a holder and a support member constituting a cleaning device collide with the flute by the momentum of restoration to open a hole in the flute. A draft roller cleaning device for a spinning machine capable of preventing the above-mentioned problem and preventing the latching member for swinging the cleaning elastic member from being left in a position where it cannot engage with the claw portion. To do.

[0009]

In order to solve the above-mentioned problems, in the invention according to claim 1, a flute constituting a New Makriyala device is arranged in the vicinity of the lower part of the front bottom roller, and it is located above the flute. A holder for mounting a cleaning elastic member on the rear side of the front bottom roller can swing about the front bottom roller through a support tool with the tip of the cleaning elastic member in contact with the streak portion of the front bottom roller. A holder that is supported and that is biased by a biasing member in a direction that prevents upward displacement from the reference position is displaced upward from the reference position by engagement with a claw portion that is integrally rotatable with the second bottom roller. A stopper member is provided on the holder, and the holder is rocked by engaging and releasing the claw portion and the latch member that rotate integrally with the second bottom roller. In a draft roller cleaning device in a spinning machine for cleaning the streak portion by intermittently sliding an elastic member for cleaning on the streak portion, a regulating member is provided between the holder and the flute at the reference position. It was

According to the second aspect of the invention, the regulating member is provided on the side surface of the roller stand.

[0011]

According to the invention described in claim 1, with the above construction, the pawl portion which rotates integrally with the second bottom roller during the operation of the spinning machine stand is intermittently engaged with the latching member provided in the holder. The holder is oscillated and the distal end of the cleaning elastic member is intermittently slid on the streak portion to clean the streak portion. After the holder is displaced upwards, the engagement between the claw portion and the latching member is released, and the holder vigorously moves downward due to the restoring force of the biasing member, and the momentum passes the reference position toward the flute side. Even if the holder moves, the holder is prevented from moving toward the flute between the reference position and the flute by the holder hitting the regulating member.

According to the second aspect of the present invention, it becomes possible to dispose the regulating member at a position where it can be engaged with the holder between the holder at the reference position and the flute without the interposition of a supporting member such as a bracket. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. As shown in FIG. 2, roller stands 2 are arranged on the left and right sides (only one side is shown) of the spinning frame 1 at predetermined intervals in the longitudinal direction of the frame. The front bottom roller 3, the second bottom roller 4, and the back bottom roller (not shown) are rotatably supported on the roller stand 2. The front bottom roller 3 is provided with a number of streaks 3a (six in this embodiment) corresponding to the number of weights between the respective roller stands 2.
A large number of grooves substantially parallel to the axial direction of the front bottom roller 3 are formed in the streak portion 3a.

As shown in FIGS. 1 and 2, the swing clearer 5 is arranged behind the front bottom roller 3. That is, the holder 6 that constitutes the swing clearer 5
Is arranged between the roller stands 2 so as to extend along the front bottom roller 3, and the two support members 7
It is supported and hung by the front bottom roller 3 so as to be rotatable about its axis. A total of six rubber pads 8 are attached to the holder 6 at positions corresponding to the respective streak portions 3a with their tips pressed against the streak portions 3a. The rotation of 6 allows the tip of the rubber pad 8 to slide on the ridge 3a in a pressure contact state.

The hook spring 9 extending from substantially the center of the holder 6 is arranged with the hook portion 9a at the tip thereof in contact with the lower surface of the second bottom roller 4.
A kicker 10 having a claw portion 10a is fitted to the second bottom roller 4 so as to rotate integrally with the hook spring 9 at a position corresponding to the hook spring 9 on the smooth shaft portion 4b where the streak portion 4a of the second bottom roller 4 is not formed. . The claw portion 10a of the kicker 10 and the hook portion 9a of the hook spring 9 can be engaged with each rotation of the second bottom roller 4, and by the engagement, the holder 6 is centered on the front bottom roller 3 via the hook spring 9. It can be pulled up. Further, the push portion 11a at the tip of the stop spring 11 extended from the holder 6 is in contact with the lower surface of the second bottom roller 4, and the stop spring 11 is elastically deformed as the holder 6 is displaced upward. As a result, the holder 6 is biased in the direction of returning to the reference position (the solid line position in FIG. 1). The support 7 is relatively strongly fitted to the front bottom roller 3, and the support 7 does not slide on the front bottom roller 3 due to the weight of the swing clearer 5. Also,
The support 7 allows the front bottom roller 3 to slide in a state where the pressing portion 11a of the stop spring 11 is in contact with the second bottom roller 4.

Further, as shown in FIG. 1, the spinning machine is provided with a pneumatic clearer device 12, and a flute 13 is in front of a support pipe 12a extending from a pneumatic duct (not shown) arranged at the center of the machine frame. It is supported near the lower portion of the bottom roller 3 so as to extend along the machine base longitudinal direction. The pneumatic clearer device 12 is driven during operation of the machine base, and by depressurizing the inside of the pneumatic duct, the fleece or the like at the time of yarn breakage is sucked and removed from the suction port 13a formed in the flute 13.

As shown in FIGS. 1 and 2, a regulating member 14 is provided on the side surface of the roller stand 2 at a position substantially corresponding to the center between the holder 6 and the flute 13 which are arranged at the reference position. It is fixed by projecting parallel to the direction. As shown in FIG. 3, the regulating member 14 includes a metal pin 15 and a cushioning rubber 16 as a cushioning member made of an annular urethane rubber. A cushioning rubber 16 is inserted into the head portion 15b of the pin 15 screwed at 15a. As shown in FIG. 1, the front top roller 17 is arranged in a pressed state on the upper side of the front bottom roller 3, and the second top roller 18 is pressed on the upper side of the second bottom roller 4 via respective aprons 19. It is arranged in a state.

Next, the operation of the device configured as described above will be described. During operation of the machine base, the bottom rollers 3 and 4 are rotationally driven and the top rollers 1 arranged in a pressed state.
The roving yarn is drafted between the draft yarns 7, 7, and the like, and the fleece after drafting is delivered to the front of the front bottom roller 3 (leftward in FIG. 1). Further, the pneumatic clearer device 12 is driven during machine operation, and when the yarn breaks, the fleece continuously fed from the front bottom roller 3 is sucked from the suction port 13a of the flute 13 so as not to be entangled with the yarn of the adjacent weight. To be removed.

During this machine operation, the tip of the rubber pad 8 pressed against the streak portion 3a vibrates little by little while sliding on the streak portion 3a as the front bottom roller 3 rotates. Also,
The claw portion 10a of the kicker 10 and the hook portion 9a of the hook spring 9 are intermittently engaged with each rotation of the second bottom roller 4, so that the holder 6 and the support 7 as a whole have the rubber pad 8 centered on the front bottom roller 3. It swings with its tip sliding on the streak portion 3a. That is, when the kicker 10 that rotates integrally with the second bottom roller 4 hooks the hook 9a of the hook spring 9 with the claw 10a, the holder 6 and the support 7 as a whole are displaced upward through the hook spring 9. Then, due to the restoring force of the stop spring 11 elastically deformed during the disengagement of the claw portion 10a and the hook portion 9a, the holder 6 and the supporting member 7 as a whole move vigorously downward from the position displaced upward. Move to the reference position. In this way, the holder 6 and the supporting member 7 as a whole swing, and the rubber pad 8 moves its tip to the streak portion 3a in accordance with the swing.
It intermittently oscillates while being slid on. The small vibrations of the rubber pad 8 and the relatively large rocking movements ensure the cleaning of the streak portion 3a, and prevent the fiber wastes from accumulating in the groove of the streak portion 3a.

Here, when the claw portion 10a and the hook portion 9a are disengaged from each other, the holder 6 and the supporting member 7 displaced upward move vigorously downward due to the restoring force of the elastically deformed stop spring 11. However, the momentum may pass the reference position. At that time, the holder 6 which has passed the reference position is shown in FIG.
As shown by the chain line, both ends thereof hit the regulating member 14 projecting from the roller stand 2 and further movement is prevented. Therefore, the holder 6 and the support 7 are the flutes 1.
Colliding with 3 is avoided.

Further, since the movement of the holder 6 at the time of restoration is blocked by the regulating member 14, it is possible to prevent the support tool 7 supporting the holder 6 from being largely displaced from its reference position. . Therefore, even if the hook portion 9a of the hook spring 9 extending from the holder 6 immediately after the restoration is separated from the lower surface of the second bottom roller 4, the displacement amount from the reference position is small. Rotates in unison with the rotation of the front bottom roller 3 and is immediately returned to its reference position. As a result, it is significantly reduced that the hook portion 9a is left in the position where it cannot be engaged with the claw portion 10a. Further, the impact force when the holder 6 hits the regulating member 14 is alleviated by the impact absorption by the cushioning rubber 6 inserted into the head portion 15b of the pin 15.

As described above in detail, according to the present embodiment, even if the holder 6 passes through the reference position by the momentum of its restoration, the holder 6 hits the regulating member 14 and is prevented from moving toward the flute 13 further. It is possible to avoid a collision between the flute 13 and the holder 6 or the support 7. Therefore, the holder 6 and the support tool 7 repeatedly hit the flute 13 and the flute 1
Since it is possible to prevent the hole from being opened in No. 3, it is possible to prevent the occurrence of a decrease in the suction force at the suction port 13a, which is caused by the air leaking from the hole formed in the flute 13 as in the conventional case, so that the yarn breakage The fleece at the time can be surely sucked and removed from the flute 13 of the pneumatic clearer device 12.

Further, even when the holder 6 is restored vigorously, the momentum is suppressed by the holder 6 hitting the regulating member 14, and the position of the support 7 immediately after the restoration is such that it slightly passes the reference position. In many cases, the front bottom roller 3 is rotated integrally with the front bottom roller 3 and immediately returned to the reference position. As a result, it is possible to greatly reduce that the hook portion 9a is left in a position where it cannot be engaged with the claw portion 10a. Therefore, the rocking motion of the rubber pad 8 is prevented from being stopped for a long time during the operation of the machine base, and the vibration motion and the rocking motion of the rubber pad 8 are almost surely performed in the swing clearer 5. The fiber waste adhering to the streak portion 3a can be effectively removed.

Further, in this embodiment, since the regulating member 14 is directly fixed to the roller stand 2, the regulating member 14 is placed at a desired position between the holder 6 and the flute 13 at the reference position without using a bracket or the like. Can be arranged to be engageable with. Further, since the impact force when the holder 6 hits the regulation member 14 is mitigated by the cushioning rubber 16 inserted in the head portion 15b of the pin 15, the holder 6 is damaged or collided by the collision with the regulation member 14. It is possible to prevent the rubber pad 8 inserted into the holder 6 from being displaced due to a shock when the rubber pad 8 is displaced from its normal position. Further, since the load applied to the pin 15 at the time of collision with the holder 6 can be reduced by the shock absorbing action based on the elastic force of the buffer rubber 6, the screw portion 15a of the pin 15 does not need to have a large strength. Moreover, the life of the pin 15 can be relatively extended by inserting the cushioning rubber 6.

The present invention is not limited to the above embodiments, but may be configured as follows, for example, within the scope of the invention. (1) A shaft may be installed between the roller stands 2 as a regulating member. Further, the regulation member may be arranged at a position where it can be engaged with the holder 6 via a bracket or the like from a shaft provided between the roller stands 2. Also in this case, the contact portion of the regulation member with the swing clearer 5 may be covered with a cushioning member such as rubber, and the shaft itself as a regulation member installed between the roller stands 2 may be made of rubber. In addition, the roller stand 2 is not screwed with the regulating member.
It may be integrally formed with.

(2) The arrangement position of the regulating member 14 is not limited to the above embodiment, and the degree of impact between the holder 6 and the regulating member 14 and the position of the hook portion 9a from the position where the hook portion 9a can be engaged with the claw portion 10a. Considering prevention, the holder 6 and the flute 13 at the reference position
It can be set at an appropriate position within the range. For example, the regulation member 14 may be arranged at a position where the holder 6 can be prevented from moving when the holder 6 returns so that the hook 9a can engage with the claw 10a. According to this configuration, it is possible to almost certainly prevent the hook portion 9a from being disposed at a position where it cannot engage with the claw portion 10a, and the rocking movement of the rubber pad 8 can be continued throughout the operation of the machine base. it can.

(3) The pin 15 may be made of plastic instead of metal. In this case, if the plastic pin itself has a shock absorbing function, a cushioning member such as rubber can be eliminated.

(4) Instead of rubber, the cushioning member may be made of resin such as vinyl having a shock absorbing function. Also, when using rubber, the material is not limited to urethane rubber,
Natural rubber (NR), styrene-butadiene rubber (SB
R), nitrile rubber (NBR), polybutadiene (B
R), polyisoprene (IR), ethylene-propylene rubber (EPM) and the like may be used.

(5) The contact portion of the regulating member 14 with the holder 6 is not limited to the cylindrical shape, and may be, for example, a plate shape. In the case of a plate shape, its surface may be orthogonal to the swing direction of the holder 6. (6) Although the regulating members 14 are arranged one by one from the opposite side surfaces of the roller stand 2, two or more plural regulating members may be arranged. Since the impact force can be dispersed by the plurality of regulating members 14, the impact relaxation effect can be further enhanced.

(7) The restricting member may be arranged not to be in contact with the holder 6 but to be in contact with the supporting tool 7 other than the holder 6, for example. The technical idea grasped from the above embodiment and not described in the scope of the claims will be described below together with the effect thereof.

(1) In claim 1, at least a contact portion of the regulating member with the cleaning device is covered with a cushioning member. Since the impact force when the holder or the support tool hits the regulation member is mitigated by the cushioning member that covers the regulation member, the load applied to the cleaning device and the regulation member at the time of collision can be reduced.

[0032]

As described above in detail, according to the invention described in claim 1, the engagement between the claw portion and the latch member is released, and the holder is vigorously restored downward by the restoring force of the biasing member. However, since the swinging range of the holder on the flute side is limited by the regulating member, the holder and supporting tools that make up the cleaning device repeatedly collide with the flute due to the momentum of restoration, causing holes in the flute and cleaning. It is possible to prevent the latching member that swings the elastic member for use from being left in a position where it cannot be engaged with the claw portion.

According to the second aspect of the invention, there is an excellent effect that the regulating member can be arranged at a position where it can be engaged with the holder without using a supporting member such as a bracket.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a swing clearer according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a swing clearer.

FIG. 3 is a partially cutaway exploded front view of a restriction member.

FIG. 4 is a schematic side sectional view showing a conventional device.

[Explanation of symbols]

2 ... roller stand, 3 ... front bottom roller, 3a
... streak part, 4 ... second bottom roller, 5 ... swing clearer as a cleaning device, 6 ... holder, 7 ... support tool, 8 ...
A rubber pad as an elastic member for cleaning, 9 ... a hook spring as a hooking member, 10 ... a kicker, 10a ... a claw portion,
11 ... Stop spring as urging member, 12 ... Pneumatic clearer device, 13 ... Flute, 14 ... Regulating member, 15 ... Pins constituting regulating member, 16 ... Buffer rubber as cushioning member.

Claims (2)

[Claims] 1. A flute that constitutes a New Muck rear device is arranged near a lower portion of a front bottom roller, and a holder for mounting a cleaning elastic member on the rear side of the front bottom roller at a position above the flute has a cleaning elastic member. While the tip of the member is in contact with the streak part of the front bottom roller, the front bottom roller is supported so as to be swingable through a support tool, and the biasing member applies a direction to prevent upward displacement from the reference position. The holder is provided with a latching member for displacing the biased holder upward from the reference position by engaging with a claw portion which is integrally rotatable with the second bottom roller, and is engaged with the claw portion which is integrally rotated with the second bottom roller. The holder is swung by engagement and disengagement with a stop member, and the elastic member for cleaning is slid intermittently on the streak portion to clean the streak portion. A draft roller cleaning device for a spinning machine, wherein a regulating member is provided between the holder and the flute at the reference position. 2. The draft roller cleaning device for a spinning machine according to claim 1, wherein the regulating member is provided on a side surface of the roller stand.