KR0137485B1 - Draft apparatus of spinning machine - Google Patents

Abstract

1. The technical field to which the invention described in the claims belongs.

The present invention relates to a weaving device for a loom.

2. The technical problem to be solved by the invention.

It is a technical problem to be solved by the present invention that the detachment of the wait controller disposed in the middle portion of the upper apron can be easily performed without separating the upper apron from the upper roller.

3. Summary of the Solution of the Invention.

The upper tensor 7 of a two-cylinder cylinder is fixed to the front part of the upper part 6c of the upper base 5.

The support shaft 14a is supported by a guide groove formed at the rear end of both side walls 6a and 6b of the upper support 5, and the upper roller 14 is supported by both ends thereof so as to be integrally rotatable.

The upper apron 9 is wound between the upper tensor 7 and the upper roller 14.

The support shaft 17 is fixed to the upper support 5 at a position corresponding to the middle lower roller 4, and the wait rollers 18 are loosely inserted at both ends of the support shaft 17, respectively. An annular engagement recess 19 is formed on the inner surface of the wait controller 18.

On the outer circumferential surface of the support shaft 17, a plurality of locking portions 20 which can be engaged with the roller shaft direction of the engagement recess 19 are projected.

4. Important uses of the invention.

Provided is an apron-draft type of tracking device suitable for long fiber release.

Description

Drafting device of spinning machine

1 is a partially broken plan view of an embodiment.

2 is a side view showing a support state of the wait controller.

3 is a partial cross-sectional view of the second embodiment.

4 is a partial cross-sectional view of the third embodiment.

5 is a partial side view of a modification.

6 is a partially broken side view of a conventional apparatus.

7 is the same cross-sectional view.

* Description of the symbols for the main parts of the drawings *

Bottom apron 2. Lower roller as drive roller

3. Lower Tensor Bar of Tensor Rosso 4. Middle lower roller

5. Side stand 6a, 6b side wall

7. Upper tensor as tensor 9. Upper apron

14. Upper roller as driving roller 15. Weighting arm

17. Axis Waiter

19. Engaging recesses as engaging members.

20. Hanging part as a regulating part 21. Gap as a locking member.

22. Same pin 29. Regulatory Department.

The present invention relates to a draft device of a spinning machine, and more particularly, to a draft device of an apron draft system suitable for the release of long fibers.

In this type of draft device, a pair of aprons are wound between the tensor and the drive rollers, and the distance between the tensors and the drive rollers is increased in response to the release of the long fibers. This becomes insufficient.

For this reason, Japanese Unexamined Patent Application Publication No. 28-5631 provided a joint roller supporting the upper bottom of the apron in the middle of the lower apron, and the lower side of the apron at the position corresponding to the joint roller in the middle of the upper apron. Disclosed is a device provided with a wait controller in contact with an upper surface. This publication does not disclose a detailed configuration of the wait controller.

The device shown in FIG. 6 and FIG. 7 was implemented as a draft device provided with the wait controller in the middle of an apron. In the apron device 32 disposed behind the front lower roller 31a and the front upper roller 31b, the upper support 34 is disposed above the lower apron 33.

In the middle part of the lower apron 33, the middle lower roller 35 is arrange | positioned in contact with the lower support 33. As shown in FIG.

The upper support 34 is composed of a pair of side walls 34a and 34b and an upper wall 34c connecting the two side walls 34a and 34b.

The upper apron 36 is wound between the upper tensor 37 and the upper roller 38.

Support holes 39 are formed at positions corresponding to the intermediate lower rollers 35 on both side walls 34a and 34b, and cylindrical wait rollers 941 are supported by the support shafts 39 inserted into the support holes 39. It is.

On the outer side of the side wall 34a, a restricting piece 42 which regulates the movement in the longitudinal direction of the ground side 40 is attached rotatably by the pin 43.

In addition, the upper apron 36 is pressed by the weight of the wait controller 41 so as to secure a proper state of the fiber.

The apron apparatus provided with the heterogeneous wait controller 41 is attached independently to each weight.

In order to discharge a thread with few defects, it is necessary to adjust the contact pressure of the apron to an appropriate value in response to the discharge condition, and to replace the weighted wait controller 41 with a different discharge condition.

In the conventional apparatus, since the support shaft 40 supporting the wait controller 41 is supported between the pair of side walls 34a and 34b, when the wait controller 41 is replaced, the upper roller 34 is first mounted from the upper support 34. 38) to separate the upper apron 36 from the upper roller 38.

Next, the restraint piece 42 is rotated to expose the support hole 39, to extract the support shaft 40 from the support hole 39, and to separate the wait roller 41. And to attach a new, the wait controller 41 is attached to the upper support 34 to the opposite level. That is, when replacing the wait roller 41, it is necessary to separate the upper apron 36 from the upper roller 38, which makes the replacement work very cumbersome.

Moreover, since the wait controller 41 is loosely inserted in the ground side 40 supported between the both side walls 34a and 34b, the weight of the wait controller 41 between the inside of both side walls 34a and 34b and the end surface of the wait controller 41 is different. Fluffy is deposited in the gap so that fluffy is easily wound around the peripheral surface of the support shaft (40).

If the sedimentation of the fluffy or left uncovered, the sediment fibers and the emotional fibers are enlarged, which interferes with the rotation of the wait roller 41, in particular, the stable running of the apron is difficult.

Therefore, it is necessary to remove the deposition down, even when removing the down, it is necessary to separate the wait roller 41 from the ground side (40).

For this reason, there is a problem that cumbersome detachment work of the wait controller 41 is required.

The present invention has been made in view of the above problems, and an object thereof is to provide a draft device which can easily attach and detach a wait roller disposed at an intermediate portion of an upper apron without having to remove the upper apron from the upper roller. .

In order to achieve the above object, in the invention described in claim 1, the supporter is configured to support the support shaft with one side of the support of the upper apron in a state in which a loosely fitted shaft is pressurized by the weight of the upper apron to the lower apron side by its own weight. Removably installed in a direction away from the surface supporting the support shaft of the upper support, and also provided with a restricting portion for restricting the movement to the free end side of the wait roller support shaft.

In the invention as set forth in claim 2, the restricting portion is a locking portion that is formed on the outer circumferential surface of the support shaft and is able to engage with an end portion in the roller axial direction of the engaging portion formed on the inner surface of the wait roller. It is formed larger than the diameter of the maximum outer diameter of.

Moreover, in invention of Claim 3, in the invention of Claim 2, the said engaging part is a rounded recessed part, and the said latching part is a protrusion part.

In the invention according to claim 4, in the invention according to claim 1, the support shaft is provided with the free end side protruding from the wait controller, and the restricting portion is detachably attached to the free end side of the support shaft with one touch so as to be in contact with the end face of the wait controller. It is possible to be attached to the locking member.

In the invention described in claim 5, the locking member is a resin cap attached to the support shaft.

In the invention according to claim 6, in the invention according to claim 1, the support shaft is detachably mounted to a pedestal, and a restricting portion is provided on the free end side of the support shaft to restrict the movement of the wait roller in the axial direction.

In the invention as set forth in claim 7, in any one of claims 1 to 6, the draft apparatus is provided with a two-cylinder draft, and each component is provided symmetrically with respect to the pedestal.

In the invention as set forth in claim 1, the pair of aprons wound between the drive roller and the tensor runs while the opposing surfaces are pressed against each other. The middle part of the apron catches the fiber under moderate pressure by the middle lower roller and the wait roller. The roller-shaped wait roller presses the upper apron to the lower apron side at a position corresponding to the middle lower roller by its own weight.

The support shaft of the wait controller is supported on one side of the pedestal, and the wait controller rotates in accordance with the movement of the upper apron while the movement of the support shaft to the free end side of the support shaft is restricted.

When replacing the wait controller, the wait controller is detached from the pedestal at the same time as the axis, or only the wait controller is detached from the axis. The other wait controllers are attached in the reverse order.

In the invention according to Claims 2 and 3, the wait controller rotates in a state in which the engaging portion formed on the inner surface thereof is restricted in the axial direction in the restricting portion formed on the outer circumferential surface of the support shaft.

If the wait roller is moved to the free end side of the axis with the engagement between the engaging part and the regulating part released, the wait controller is separated from the axis.

In the invention according to claims 4 and 5, the support shaft supports the wait controller with its free end protruding from the wait controller. The wait controller is rotated with its cross section attached to the protruding end side of the support shaft in a state in which movement to the free end side of the support shaft is restricted.

The restricting member is separated from the free end side of the support shaft and becomes insertable.

In the invention as set forth in claim 6, the wait controller rotates in a state where the cross section is restricted to the free end side of the support shaft by a restricting surface provided on the free end side of the support shaft. The wait controller is attached to the pedestal along with the support shaft.

In the invention according to claim 7, the draft device is provided with a two-cylinder pedestal, so that the labor of assembling the draft device in the weaving machine is halved in comparison with the conventional apparatus in which the pedestal is provided for each weight.

Example

Example 1

Hereinafter, a first embodiment in which the present invention is embodied in a two-type draft apparatus will be described with reference to FIGS. 1 and 2.

The lower apron 1 is wound around a lower roller 2 as a driving roller, a lower tensor bar 3 as a tensor, and an intermediate lower roller 94 disposed between them. The lower tensor bar 3 is fixed at a predetermined position with both end portions protruding from both sides of the lower apron 1.

The upper stand 5 is made of metal and is configured as an upper wall 6c which connects a pair of side walls 6a and 6b and both side walls 6a and 6b.

In the front part of the upper wall 6c, the upper tensor 7 of a two-cylinder cylinder as a tensor is fixed at the center.

In the center of the front end of the upper tensor 7, a resin tensor cage adjustment pin 8 is fitted.

Guide pieces 10 for regulating the movement of the upper apron 9 in the width direction are fixed to the lower left and right sides of the upper tensor 7.

In the upper wall 6c of the upper supporter 5, a hole 6d is formed in the vicinity of the rear end of the upper tensor 7, and at the same time, an engaging portion 6e is formed at a position corresponding to the upper side of the hole 6d. It is formed by bending at the bottom.

The leaf spring 12 for applying the upper tensor 7 downward is bent into a side hairpin shape, and an arc portion at the front end thereof is in contact with the upper surface of the upper tensor 7.

The guide piece 11 which regulates the movement of the upper apron 9 in the width direction is being fixed to the back upper surface of the upper wall 6c.

At the rear end of both side walls (6a) and (6b) of the upper support (5) is formed a guide groove (13) with the bottom open.

The guide groove 13 is supported with the support shaft 14a inserted therein, and the upper roller 14 as the driving roller is supported at both ends of the support shaft 14a so as to allow integral rotational movement.

Then, the upper prun 9 is wound between the upper tensor 7 and the upper roller 14.

At the bottom of the support arm 16 protruding from a known weighting arm 15 (only part of which is shown in FIG. 2) supporting the upper front roller and the upper rear roller (not shown in the drawing), the support shaft 14a ), The center part is freely supported. That is, the upper support 5 is supported by the waitia arm 15 through the support shaft 14a.

The support shaft 17 is fixed to the upper support 5 at a position corresponding to the intermediate lower roller 4 so as to penetrate both side walls 6a and 6b.

At both ends of the support shaft 17, that is, at the free end, the wait controller 18 is removably inserted in a state where a part of the circumferential surface is in contact with the inner surface of the upper apron 9, respectively. That is, the support shaft 17 supporting the wait controller 18 is supported with one side supported on the upper support 5.

The inner surface of the wait controller 18 is formed with an annular engaging recess 19 as a engaging member.

The engaging recess 19 has a trapezoidal cross-sectional shape. On the outer circumferential surface of the support shaft 17, a plurality of engaging portions 20 serving as restricting portions that can engage with the end portions of the engaging recess portion 19 in the roller axial direction are protruded.

The minimum inner diameter of the wait controller 18, that is, the diameter of a portion other than the engaging recess 19 is formed larger than the diameter at the position of the maximum outer diameter of the support shaft 17, that is, the locking portion 20.

Next, the operation of the device configured as described above will be described.

When the weighting arm 15 is disposed at a pressing position in which the front upper roller and the rear upper roller are pressed to the lower roller side (none of which is shown in the drawing), the leaf spring 12 is lower than the lower surface of the weighting arm 15. The upper tensor 7 is engaged and a force is applied to the lower apron 1 side with a weak force.

In addition, the interval (cage) between the upper tensor 7 and the lower tensor bar 3 is set by the tensor cage adjustment pin 8 abutting the upper surface of the lower tensor bar 3.

The upper apron 9 has a force against which the upper roller 14 is pressed toward the lower roller 2, a pressing force (pressing force) by the weight of the wait roller 15, and a tensile force of the upper apron 9. It is pressed against the lower apron 1 by this.

The lower apron 1 rotates by the rotation of the lower roller 2, and the upper apron 9 rotates in synchronism with the lower apron 1 by the pressing force between the lower apron 1 and the lower apron. Transfer the fiber bundles (not shown) to the cavity (1).

The side where both aprons (1) and (9) are pressed against each other, that is, the side which catches and transports the fiber bundle, becomes the loose side of the apron, so that the lower tensor bar (3) and the lower roller (2) are long and loose in the middle part. This weakens the regulatory power of the fiber bundle. However, since the middle lower roller 4 is present in the middle portion, the lower apron 1 does not loosen even when the lower tensor bar 3 and the lower roller 2 become long.

Although the wait controller 18 is loosely inserted into the support shaft 17 in a detachable manner, the wait controller 18 rotates in a state in which the engaging recess 19 is engaged with the catch portion 20. Movement in the axial direction is regulated.

Therefore, even if there is no support part which serves as a regulating view and supports the support shaft 17 on both sides of the wait controller 18, there is no fear that the wait controller 18 will detach from the support shaft 17 during the driving of the draft device.

In addition, the upper runn 9 is guided to the guide piece 10 and the guide part 11a, and the movement in the width direction is restricted and travels to a predetermined position.

When changing the wait controller 18 for changing the discharge condition, the pressure of the weight arm 15 is released first.

Next, with the wait controller 18 from the free end side of the support shaft 17, the center of the wait controller 18 is moved to a position coinciding with the center of the support shaft 17 so that the engaging recess 19 and the engaging portion ( Release engagement with 20). In this state, when the wait controller 18 is moved to the free end side of the support shaft 17, the wait controller 18 is separated from the support shaft 17.

Since the diameter of the minimum inner diameter of the wait controller 18 is larger than the diameter of the maximum inner diameter of the support shaft 17, the wait controller 18 is simply separated.

Next, when the newly-attached wait controller 18 is inserted from the free end side of the support shaft 17 to the position corresponding to the engaging portion 20 by the engagement recess 19, the replacement operation is completed.

In addition, in the case of removing the deposition down between the shaft 17 and the wait controller 18, the same waiter 18 is removed after the removal of the attached down and the removal of the down accumulated inside the wait controller 18. It is inserted into the support shaft 17.

As described above, since the upper apron 9 can be attached to and detached from the support shaft 17 of the wait roller 18 as it is wound between the upper tensor 7 and the upper roller 14, It is easy to exchange and remove sediment.

In this embodiment, the center of the wait controller 18 is moved to a state substantially coincident with the axis center of the support shaft 17, and at the same time, it is separated very simply by moving to the free end side of the support shaft 17.

In addition, in this embodiment, the engaging portion for restricting the movement of the wait controller 18 in the axial direction is easily formed because of the annular engaging recess portion 19.

In this embodiment, since the upper tensor 7, the upper roller 14, the wait roller 18, the upper apron 9, and the like of the two-cylinder upper stand 5 are equipped with a pair, the pedestal is installed at each spine. Compared with the conventional apparatus, the effort of assembling the draft apparatus to the weaving machine is halved.

Example 2

Next, the second embodiment will be described with reference to FIG.

In this embodiment, the configuration of the restricting portion which regulates the movement of the wait controller 18 in the axial direction of the support shaft 17 is different from that of the first embodiment, and the other configurations are the same.

The same parts as in the above embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted and other parts will be described.

The support shaft 17 is formed of a small diameter portion 17a positioned at the free end side and a large diameter portion 17b having an outer diameter larger than the inner diameter of the wait controller 18. The free end side of the small diameter portion 17a is a waiter controller. It is formed in the length which protrudes from 18. The wait controller 18 is formed in a cylindrical shape with no engagement recesses and is not formed in the support shaft.

The wait controller 18 is loosely inserted into the small diameter portion 17a, and a resin cap 21 as a locking member is detachably attached to the free end of the small diameter portion 17a with one touch.

In the state in which the cap 21 is attached to the small diameter part 17a, the gap exists between the end surface of the big diameter part 17b and the end surface of the cap 21 in the both ends of the wait controller 18. As shown in FIG. The wait controller 18 rotates in accordance with the travel of the upper apron 9 in a state in which movement of the support shaft 17 in the axial direction is restricted by the large diameter portion 17b and the cap 21.

When detaching the wait controller 18 from the support shaft 17, the cap 21 is first removed, and in this state, the wait controller 18 is moved to the free end side of the support shaft 17 with the wait controller 18.

When attaching the wait controller 18, the wait controller 18 is inserted into the support shaft 17 from its free end side, and then the cap 21 is attached to the small diameter portion 17a.

Therefore, in this embodiment, the wait controller 18 can be easily attached or detached.

In addition, the pin 22 may be detachably attached to the free end side of the small diameter portion 17a as shown in FIG. 3B instead of the cap 21 as the locking member.

In any case, since the wait controller 18 has a simple cylindrical shape, no special machining is required, and thus the machining is easy as compared with the above embodiment.

Example 3

Next, the third embodiment will be described with reference to FIG.

This embodiment differs from the above embodiment in that the support shaft 17 is detachably configured with respect to the upper support 5 with one touch.

The upper support 5 is provided with a fitting hole 24 fixed to the block 23 made of resin and communicating with the fitting hole 24 at the same time as the fitting hole 24 is formed in the block 23. have.

The coil spring 27 in which the ball 26 is fixed to the tip is accommodated in the accommodation hole 25 in a state in which almost half of the ball 26 protrudes in the fitting hole 24.

The support shaft 17 is slidably inserted into the fitting hole 24, and the engaging groove 28 is engaged with the ball 26 so that the outer surface of the restricting portion 29 and the upper support 5 is fixed. The spacing of is positioned with the spacing slightly larger than the length of the wait controller 18.

And the wait controller 18 engages with the control part 29, and rotates according to the movement of the upper apron 9 in the state to which the movement to the free end side of the support shaft 17 is regulated.

When the wait controller 18 is replaced, the controller 29 of the support shaft 17 is pulled toward the free end side and the wait controller 18 is separated from the upper support 5 together with the support shaft 17. Then, the support shaft 17 on which the other wait controller 18 is mounted is inserted into the fitting hole 24.

Therefore, even in this embodiment, attachment and detachment are simplified without requiring special processing of the wait controller 18.

In addition, this invention is not limited to the said Example, You may specify as an example as follows.

(1) In the first embodiment, the engaging portion 20 for engaging with the engaging recess 19 may be formed in a ring shape. In addition, an engagement convex portion as an engaging portion may be formed on the inner surface of the wait controller 18, and an annular locking convex portion as a locking portion may be formed on the support shaft 17 side.

The engagement convex portion does not need to be in a ring shape, but the processing of the ring shape is easy.

(2) As shown in FIG. 5, a plurality of holes 30 through which the support shaft 17 can be inserted are formed in the side walls 6a and 6b of the upper support 5, and the upper support 5 of the support shaft 17 is formed. It is also possible to change the mounting position with respect to).

In this case, the attachment position of the support shaft 17 can be changed to the most appropriate position in accordance with the discharge condition, and the contact pressure of the upper apron 9 can be adjusted to a more appropriate value.

(3) It is good to be button-type, not to be two-ration formula. In this case, four of the sidewalls constituting the upper base support the one of the sidewalls at the position corresponding to the cutout or hole allowing the passage of the waitroller 18 to a position corresponding to the support shaft supporting the waitroller 18. The boss portion for supporting the is formed.

(4) The wait controller 18 may be configured to be in contact with the lower inner surface of the upper apron 9 without necessarily contacting the inner surface of the upper apron 9 up and down.

(5) The leaf spring 12 or the tensor cage adjustment pin 8 may be omitted.

In addition, in this specification, the term [one support state] which is used is defined as follows.

[One support state] means not only a state in which the second end is supported so that the first end of the axis becomes a free end, but an intermediate part of the axis being supported so that both ends of the axis become a free end.

The invention other than the claims described in the foregoing Examples and Modifications will be described together with the effects below.

(1) In the invention according to claim 6, a plurality of holes or holes for inserting a support shaft are provided in the pedestal.

In this case, the support position of the support shaft is changed to a position where a more appropriate contact pressure is obtained in response to the discharge condition.

As described above, according to the invention described in Claim 1 to Claim 7, the detachment of the wait roller disposed in the middle portion of the upper apron can be easily performed without separating the upper apron from the upper roller.

According to the invention of Claims 2 and 3, the attachment and detachment of the support shaft is simply performed by simply moving the position with the wait controller.

In addition, according to the invention described in claims 4 to 6, the attachment and detachment of the support shaft is easily performed without any special processing on the wait controller.

In addition, according to the invention described in Claim 7, the draft device is provided with a two-cylindrical pedestal, so that the labor of assembling the draft device to the weaving machine is reduced by half compared with the conventional apparatus provided with the pedestal for each weight.

Claims (7)

It is wound between the driving rollers (2, 14) and the tensor (3) (7) and has a pair of aprons (1) (9) pressed against each other at the same time, the middle of the lower aprons (4) The roller 4 is provided, and the wait roller which presses the upper apron 9 toward the lower apron 1 by its own weight at a position corresponding to the middle lower roller 4 at the middle portion of the upper apron 9 ( 18. A draft apparatus comprising: A support shaft 17 into which the wait controller 18 is loosely fitted is supported on one side of the pedestal 5 of the upper apron 9 while the wait controller 18 supports the support shaft 17 of the pedestal 5. ) Is detachably installed in a direction away from the supporting surface, and also the restriction views 20 (21) (22) for restricting the movement of the waiter (18) to the free end side of the support (17) on the support (17). Drafting device for a weaving machine, characterized in that (29) is installed. The method of claim 1, The restricting portion is formed on the outer circumferential surface of the support shaft and at the same time engages with an end portion in the roller axial direction of the engaging portion 19 formed on the inner surface of the wait controller 18, and also has a minimum inner diameter portion of the wait controller 18. A draft device for a weaving machine, characterized in that the diameter is larger than the diameter of the maximum outer diameter of the support shaft (17). The method of claim 2, Drafting device of the spinning machine, characterized in that the engaging portion (19) is a ring-shaped concave portion and the locking portion (20) is a projection. The method of claim 1, The support shaft 17 is disposed in a state where the free end side protrudes from the wait controller 18, and the restricting portion is detachably attached to the free end side of the support shaft with one touch so as to be in contact with the end surface of the wait controller 18. Drafting device for a weaving machine, characterized in that it comprises a portion (21) (22). The method of claim 4, wherein The locking member is a draft device of the spinning machine, characterized in that the resin cap mounted on the support shaft (21). The method of claim 1, The spindle is detachably mounted to the pedestal (5), characterized in that the spinning section is provided on the free end side of the support shaft (17) for restricting the movement of the wait controller 18 in the axial direction. Draft device. The method according to any one of claims 1 to 6, The draft device is a draft device for a spinning machine, characterized in that it comprises a two-cylindrical pedestal (5), each component is disposed symmetrically with respect to the pedestal (5).