JPH06263324A - Pressure contact roller for takeup machine - Google Patents

Abstract

PURPOSE:To eliminate temperature marks in a roller main body with which yarn gets in contact, and prevent a short life of a shaft bearing. CONSTITUTION:A heat pipe 7 is inserted into a shaft center part of a pressure contact roller 6 for yarn in a takeup machine, so heat generated at bearings 10 of a shaft bearing 9 is transmitted by the heat pipe 7 to a roller main body 6a of a low temperature, thereby the heat is radiated from the whole circumferential surface of the roller main body 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact pressure roller for applying a predetermined surface pressure to a bobbin or a package in a winder for winding a yarn.

[0002]

2. Description of the Related Art Generally, a winding machine used for winding a synthetic fiber yarn includes a bobbin tightening spindle 2 rotatably mounted on a machine frame 1 as shown in FIG. The traverse mechanism 4 is integrally attached to the frame 3 that moves up and down along the guide formed on the frame 3, and the contact pressure roller 50 is attached to the frame 3 in parallel with the spindle 2.

In the case of the driven type in which the above-mentioned contact pressure roller 50 is rotated by the package, as shown in FIG. 5, a roller 51 having a shaft 51b protruding from both sides of a roller body 51a is formed by a bearing 52 into a frame 3 It is configured to be rotatably attached to.

The above-mentioned bearing 52 is the shaft portion 51 of the roller 51.
A bearing 53 that rotatably supports b and a bracket 54 that is a support member of the bearing 53 are included.

Further, in the case of a drive type (not shown) in which the contact pressure roller 50 is positively rotated, one of the shaft portions of the roller 51 is rotatably mounted on the frame body by a bearing, and the other of the shaft portions. The induction motor is connected to the shaft by a coupling.

[0006]

The yarn of 4000 m is wound by the winder equipped with the contact pressure roller as described above.
When the contact pressure roller 50 is a driven type, the roller 51 is rotated at a high speed by the bobbin 60 tightened by the spindle 2 or the package 61, so that the bearing 53 of the bearing 52 is wound up at a high speed of not less than / min. The bracket 54 that is in contact with the outer ring portion due to heat is heated, and the shaft portion 51 that is in contact with the inner ring portion of the bearing 53 is also heated.
b is heated, and the end temperature of the roller main body 51a near the shaft 51b rises.

However, since the bearing is not forcibly cooled, the amount of heat generated in the bearing 53 is larger than the amount of heat dissipated from the peripheral surface of the bracket 54, and deterioration of the lubricating grease becomes faster. The life of 53 is shortened.

Further, heat from the shaft portion 51b is applied to the roller body 5
The temperature cannot be immediately lowered only by radiating heat from the peripheral surface of the end portion of No. 1 and the heat of the end portion of the roller main body 51 is not transmitted to the central portion, so that the end portion of the roller main body 51a has a higher temperature than the central portion. And the yarn quality of the package in contact with the roller portion having a high temperature changes. As a result, there is a problem that dyeing spots and weave spots are generated in the post-treatment process.

Next, when the contact pressure roller 50 is of the drive type (not shown), the amount of heat generated in the drive motor section is larger than that of the driven type, and the bearing incorporated in the drive motor section is Deterioration of lubricating grease becomes faster,
There is a problem that the life of the bearing becomes extremely short.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a roller for contact pressure of a winder, in which there is no temperature unevenness in the roller body portion in contact with the yarn and the life of the bearing is not shortened. It is a thing.

[0011]

In order to solve the above-mentioned problems, a roller for contact pressure of a winder according to the present invention has a longitudinal axis including a heat-conducting member at least both end bearing portions of the roller as in claim 1. It is configured to be inserted in all directions.

According to a second aspect of the present invention, the heat conducting member is fitted in the axial center portion of the roller over at least the longitudinal direction of the axial center including the housing portion of the drive motor.

Further, according to a third aspect of the present invention, the driving electric motor is rotated by the rotor mounted on the shaft portion of the roller, the stator supported by the housing so as to cover the rotor, and the shaft portion of the roller by the housing. It is preferable that the bearing is configured to be freely mounted, the heat conducting member is fitted into the housing so that the end portion projects, and the cooling member is fitted to the projecting portion of the heat conducting member.

[0014]

2 is a schematic sectional view showing an embodiment of a contact pressure roller of a winder according to the present invention, which corresponds to the contact pressure roller 50 of the winder in FIG.

In the case of the driven type in which the contact pressure roller 5 is rotated by a package or the like, a roller 6 having shaft portions 6b protruding from both sides of the roller body 6a and a shaft center portion of the roller 6 are bored. The heat pipe 7 fitted into the formed hole, the blind plug 8 screwed to the end of the heat pipe 7, and the bearing 9 attached to the frame body 3 to support the shaft portion 6b of the roller 6. It is configured.

Instead of the heat pipe 7 described above, a heat conducting member such as a copper alloy having a good heat conductivity can be used.

The above-mentioned bearing 9 includes a bearing 10 for rotatably supporting the shaft portion 6b of the roller 6, and the bearing 10.
It is comprised by the bracket 11 which supports.

When the roller 6 is rotated by the bobbin 60 tightened on the spindle 2 or the package 61, the bearing 10 of the bearing 9 generates heat and the bracket 11 in contact with the outer ring portion of the bearing 10 is heated. Then, it is cooled by heat radiation from the peripheral surface of the bracket 12.

On the other hand, when the shaft portion 6b of the roller 6 which is in contact with the inner ring portion of the bearing 10 is heated, the heat is transferred by the heat pipe 7 to the side of the roller body 6a having a low temperature, and the circumference of the roller body 6a. It is cooled by radiating heat from the entire surface.

In the roller 6 described above, since the heat of the shaft portion 6b is transmitted to the entire roller body 6a,
The heat dissipation efficiency is greatly improved. Therefore, the bearing 10
The bearing life can be prevented from shortening due to deterioration of the lubricating grease and the yarn winding speed is set to 5000 m / min. It is possible to lower the bearing pressure of the conventional roller for contact pressure in about 13000 hours by about 1.5 times to 200 times.
I was able to make it to 00 hours.

Further, the shaft portion 6b of the roller 6 is the bearing 1
Even if the temperature rises due to the heat generation of 0, the heat is immediately transferred to the low temperature location by the heat pipe 7, so that only the end of the roller body 6a close to the shaft portion 6b does not become high temperature, and the roller body The temperature of the entire 6a can be made substantially uniform, and in the conventional pressure roller, the temperature difference between the end portion and the central portion of the yarn contact portion was about 5 to 10 °, but the temperature was 1 ° over the entire yarn contact portion. The following temperature differences could be achieved.

When the contact pressure roller 5 is of the drive type,
As shown in FIGS. 3 and 4, the driving electric motor 12 is integrally formed at the end of the roller 6, and the shaft portion 6 b of the roller 6 is rotatably attached to the frame body 3 by the bearing 9. The other shaft portion 6c is extended to mount the rotor 15, and the end portion of the shaft portion 6c is rotatably mounted by a bearing 14 to a housing 13 that supports a stator 16 arranged so as to cover the rotor 15. It has been configured.

A hole is bored in the shaft center of the roller 6 described above, one end of which is located at the end of the roller body 6a or the bearing 10 of the shaft 6b and the other end of which is the shaft 6c. The heat pipe 7 is fitted and inserted so as to be located in the bearing 14 and the shaft portion 6c is arranged so that the heat pipe 7 does not move.
A blind plug 8 is screwed to the end of the.

The above-mentioned housing 13 has an integral type or a split type, is attached to the frame body 3, and has heat pipes 17 fitted and inserted at a plurality of positions in the circumferential direction of the outer peripheral portion of the stator mounting portion. Has been done.

One end of the heat pipe 17 projects from the housing 13 and a fin 18 for cooling is attached.

Instead of the fins 18, a cooling member such as a jacket for circulating a cooling liquid or a jacket enclosing the cooling liquid may be attached.

The shaft 6c of the roller 6 is extended and the rotor 15 for the electric motor is not attached, and the shaft 6c of the roller 6 is coupled by coupling the output shaft of a commercially available induction motor.
It is also possible to have a configuration connected to the. In this case, the roller 6 and the rotary shaft of the induction motor should pass through the shaft center portion 1
It is necessary to fit and insert the heat conduction member of the book, and also to insert the heat conduction member into the induction motor stator support housing portion such that the end portion protrudes, and to attach the cooling member to the protrusion portion.

In the drive type contact pressure roller 5 described above, when the housing 13 is heated by the heat generated in the drive motor 12, the fin 18 having a low temperature is inserted into the housing 13 by the heat pipe 17. The heat is transmitted to the fins 18 and is radiated from the surface of the fin 18, and is also radiated from the peripheral surface of the housing 13.

On the other hand, when the shaft portion 6c of the roller 6 is heated, the heat is transferred to the roller body 6a having a low temperature by the heat pipe 7 fitted into the roller 6 and radiated from the entire peripheral surface of the roller body 6a. It

As described above, the heat of the housing 13 is transferred to the fins 18 by the heat pipe 17 and radiated, and the heat of the shaft portion 6c is transferred to the roller body 6a by the heat pipe 7 and radiated from the entire peripheral surface. Therefore, the bearing 14 of the drive motor 12 does not generate heat abnormally, it is possible to prevent the bearing life from being shortened due to deterioration of the lubricating grease, and the yarn winding speed is 5000 m /
When set to min and operated, the temperature rise of the bearing part can be reduced by about 20 °. With the conventional roller for contact pressure, the bearing which had to be replaced in about 10,000 hours was doubled to 19000. I was able to make time.

In each of the above-mentioned embodiments, the shaft portion of the contact pressure roller rotates, but the present invention can be similarly applied to the outer rotor type contact pressure roller having the shaft fixed to the housing.

Further, in each of the above-described embodiments, the heat pipe which is the heat conducting member is fitted and inserted over substantially the entire length of the roller for contact pressure, but a heat pipe having a length including the bearing or the heat generating member of the driving motor is used. Even when they are inserted, almost the same effect can be obtained.

[0033]

According to the first aspect of the present invention, in the contact pressure roller of the winder, the heat conducting member is inserted into the roller over at least the longitudinal direction of the shaft center including the bearing portions at both ends.
The heat generated in the bearing portion can be transferred to the low temperature portion of the roller by the heat conducting member, the life of the bearing can be prevented from being shortened, and the temperature unevenness in the roller body can be eliminated.

Further, since the heat conducting member is inserted into the axial center portion of the roller over at least the longitudinal direction of the axial center including the housing portion of the driving electric motor, the heat generated in the driving electric motor portion can be obtained. Can be transmitted to the low temperature portion of the roller by the heat conduction member, and the bearing life can be prevented from being shortened due to heat generation in the drive motor.

Further, according to a third aspect of the present invention, the driving electric motor is rotated by the rotor mounted on the shaft portion of the roller, the stator supported by the housing so as to cover the rotor, and the shaft portion of the roller by the housing. With a bearing that is freely mounted, a heat conduction member is fitted and inserted into the housing so that the end portion protrudes, and when a cooling member is attached to the protrusion of the heat conduction member,
It is possible to reliably cool the driving electric motor section.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a winder.

FIG. 2 is a schematic cross-sectional view showing one embodiment of the contact pressure roller of the winding machine of the present invention.

FIG. 3 is a schematic sectional view showing another embodiment of the contact pressure roller of the winder of the present invention.

FIG. 4 is a view on arrow I-I in FIG.

FIG. 5 is a schematic cross-sectional view showing one embodiment of a contact pressure roller of a conventional winding machine.

[Explanation of symbols]

 1 Machine frame 2 Spindle 3 Frame body 4 Traverse mechanism 5 Roller for contact pressure 6 Roller 7, 17 Heat pipe 8 Blind plug 9 Bearing 10, 14 Bearing 11 Bracket 13 Housing 12 Drive motor 15 Rotor 16 Stator 18 Fin 6a Roller body 6b, 6c shaft

Claims (3)

[Claims] 1. A contact pressure roller in which a roller is rotatably mounted on a supporting member via a bearing, wherein a heat conducting member is fitted into the roller over at least a longitudinal direction of an axis including bearing portions at both ends. Roller for contact pressure of the winder. 2. A contact pressure roller in which one of the shaft portions of the roller is rotatably mounted on a bearing, and a driving electric motor is integrally formed on the other of the shaft portions, wherein a heat transfer member is provided on the roller. A roller for contact pressure of a winder, characterized in that the roller is fitted into the shaft center over at least the longitudinal direction of the shaft including the housing part of the drive motor. 3. A drive motor comprising a rotor mounted on a shaft portion of a roller, a stator supported by a housing so as to cover the rotor, and a bearing rotatably mounting the shaft portion of the roller on the housing. 3. The winding machine according to claim 2, wherein the heat conducting member is fitted and inserted into the housing so that an end portion protrudes, and a cooling member is attached to the protruding portion of the heat conducting member. Contact pressure roller.