JPH0630867Y2 - Top roller end caps for roving and spinning machines - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an end cap for a top roller for a roving frame / spinning frame in which lubricating oil does not leak from a supply hole.

[Prior Art] As shown in FIG. 4, the top roller of the currently used spinning machine has grooves 3a, 3 in the ball bearing portion 2 at both ends of the top roller shaft 1.
Balls 4 and 5 are attached to b, respectively.
The rotating shell 6 is mounted in contact with 5, and a rubber cot 7 is fixed around the rotating shell 6. further,
A shield ring 8 is provided at the end of the rotary shell 6 of the top roller shaft 1 at the ball bearing portion 2 to prevent foreign matter from entering.

The top roller configured in this manner supplies grease to the ball bearing portion 2 at regular intervals in the center portion of the end cap 9 provided at the end portion of the rotating shell 6, as shown in FIG. A supply hole 10 is provided, and this supply hole 10
When new grease is replenished from, the used old grease is discharged from the gap between the rotating shell 6 and the shielding ring 8 on the opposite side.

[Problems to be Solved by the Invention] However, in the top roller configured as described above, the central holding portion 1 ′ of the top roller shaft 1 is held and the rubber cot 7 of the rotating shell 6 is a bottom roller (not shown). When the rotating shell 6 is rotated by being pressed by, the temperature of the ball bearing portion 2 rises, the supplied grease is softened to increase the fluidity, and the center portion of the end cap 9 facing the top roller shaft 1 is topped. Since the surface pressure is higher than that of the outer circumference of the roller shaft 1, the grease supply hole 10 of the end cap 9
There is a problem that grease oozes out from it. Then, since cotton waste adheres to the exuded oil, there is a problem that the working environment is significantly deteriorated and the quality of the spun yarn is adversely affected. Therefore, there is a problem in that the oil that has exuded must be wiped off one by one, management is complicated, and extra work is required.

In order to solve the above drawbacks, in the end cap 9 shown in FIG. 6, the rubber plug 11 is used in the grease supply hole 10 and the rubber plug 11 is attached and detached when the grease is supplied. There is a problem that it is very complicated in terms of management because it is necessary to check it at all times because there are 11 lost or forgotten to wear.

An object of the present invention is to provide a top roller end cap for a rough spinning machine / spinning machine in which an oil groove orthogonal to the supply hole is provided in a boss provided at the center of the cap body to prevent oil leakage from the supply hole. To do.

[Means for Solving the Problems] In order to achieve the above object, in the end cap of the top roller for a roving frame / spinning frame of the present invention, a bud-shaped boss protruding inside the center of the cap body and the cap body are provided. And a replenishment hole is formed in the boss from the central portion of the cap body, and an oil groove that penetrates the boss orthogonally to the replenishment hole and communicates with the replenishment hole is formed. It is provided. Moreover, you may provide a notch in the edge part of the said boss.

[Operation] In the end cap of the top roller for the roving frame / spinning frame of the present invention, when the grease supplied to the ball bearing portion in the rotating shell easily flows due to the temperature increase, the rotating shell rotates with the rotation shell. And because it is pushed to the outer circumference of the end cap, the melted oil does not propagate through the groove of the boss and does not leak through the supply hole.

[Embodiment] Referring to FIGS. 1 and 2, a collar 14 is provided on the outer periphery of the cap body 13 of the end cap 12, and the collar 14 is fitted to the end of the rotary shell 6. Also, the end cap 12 has a bud-like boss 15 protruding from the center of the inside of the cap body 13, and a replenishment hole 16 is provided from the center of the cap body 13 to the boss 15, and a lateral groove orthogonal to the replenishment hole 16 is provided.
17 is provided on the boss 15. 1 is a top roller shaft, 2 is a ball bearing portion, 3a is a groove, 4 is a ball, and 6 is a rotating shell.

When the end cap 12 of this embodiment having the above structure is attached to the rotary shell 6, the rotary shell 6 of the top roller is
When is rotated, the grease supplied to the ball receiving shaft portion 2 becomes softer, and the surface pressure of the central portion of the end cap 12 is higher than the surface pressure of the outer circumference of the cap, but the grease is removed by the rotation of the shell 6 of the top roller. Since it is pushed from the tip of the bud-shaped boss 15 to the outer periphery, the grease does not leak from the lateral groove 17 through the orthogonal supply holes 16 to the outside.

In addition, when making a cap by injection molding, in order to make the lateral groove 17 in the boss 15, the boss can be removed so that the mold part of the lateral groove 17 can be removed.
A notch 18 is provided from the tip of 15 to the lateral groove 17.

Even if the cap is configured as described above, the notch 18 does not directly act on the supply hole 16 because the notch 18 is closed by the axial pressure of the grease that accompanies the rotation of the rotary cell 6, and the grease does not leak. Bleeding is prevented.

As shown in FIGS. 3 (a) and 3 (b), the end cap 12
To provide the lateral groove 16 on the boss 15 provided on the inner side of the center of the cap body 13, the collar provided around the cap body 13
A hole 19 is provided in 14 and a lateral groove 16 is provided through the hole 19.

When the end cap 12 configured in this way is attached to the rotary shell 6, the hole of the collar 14 is closed by the rotary shell 6 and is pushed from the tip of the boss 15 to the outer periphery as in the above-described embodiment, so that the grease is removed. There is no leakage from the lateral groove 17 through the orthogonal supply holes 16 to the outside.

[Advantages of the Invention] Since the present invention is configured as described above, the grease is easily replenished to the ball bearing portion of the top roller by the lateral groove of the boss, and further, the grease leaks or bleeds from the replenishment hole in the center of the end cap. This is advantageous in that it is possible to prevent complicated management and troublesome wiping work.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an end cap of an embodiment of the present invention mounted on a top roller, FIG. 2 is a cross-sectional view of the end cap and the top roller of FIG. 1 in the orthogonal direction, and FIG. 3 is another embodiment of the present invention. FIG. 4 is a sectional view of a top roller having a conventional end cap attached, and FIG. 5 is a partial sectional view of a top roller having another conventional end cap attached. FIG. 6 is a partial sectional view of a top roller having a conventional end cap mounted thereon. 12 …… End cap, 13 …… Cap body, 14 …… Brim, 15 …… Boss, 16 …… Supply hole, 17 …… Side groove, 18 …… Incision, 19 …… Hole.

Claims (2)

[Scope of utility model registration request] 1. A cap-shaped boss projecting inward of the center of the cap body, and a collar projecting around the cap body. A replenishing hole is formed in the boss from the central part of the cap body, and An end cap for a top roller for a rough spinning machine / spinning machine, which is provided with an oil groove which penetrates the boss at right angles to the supply hole and communicates with the supply hole. 2. An end cap for a top roller for a roving frame / spinning frame according to claim 1, wherein a notch is provided at an end of the boss.