JPS6036621Y2 - Drive support device for cross rollers for indirect winding in looms - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drive support device for a cross roller for indirect winding in a loom.

In general, there are two methods for winding woven fabric on cross rollers: the so-called direct winding method, in which a surface roller is pressed and rolled by the cross roller, and the so-called indirect winding method, in which the cross roller itself is actively rotated. However, no matter which winding method is used, the fabric is wound on the cross rollers one after another, and when a predetermined amount is reached, the cross rollers are removable from the machine base so that the cross rollers can be cut and unloaded. Supported.

However, in the latter indirect winding method, as disclosed in, for example, Japanese Utility Model Application Publication No. 7025-7025, the protrusion on the drive shaft side engages with the groove on the cross roller side, so that the cross roller during operation is Since the configuration is such that driving force is transmitted, when the cross roller is fully wound and unloading is performed, the weight of the cross roller is applied to the connection part with the drive shaft, and the drive shaft and cross roller There was a problem in that a large force was required to disconnect the heavy cross roller, making it difficult to remove the heavy cross roller.

The purpose of this invention is to fit a sleeve slidably in the axial direction between one end of the cross roller and the tip of the drive shaft of the same roller, and the other end of the cross roller and the tip of the guide rod for positioning the roller. Accordingly, it is an object of the present invention to provide a drive support device for a cross roller for indirect winding in a loom, which allows the cross roller to be easily removed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawing, 1 is supported by a shaft 3 between frames 2 on both left and right sides, and is rotated by an appropriate drive mechanism in synchronization with the weaving operation. This is a surface roller around which the woven fabric C that has passed through the expansion parr 4 is wound, so that the woven fabric C can be pulled out along with the weaving operation.

Reference numeral 5 denotes a press roller that is pressed against the outer periphery of the surface roller 1, around which the woven fabric C from the surface roller 1 is wound, and the woven fabric C that has passed through this is sent to a tension bar 6 disposed below. It looks like this.

Reference numeral 7 denotes a pair of front and rear support rollers supported by shafts 9 for free rotation on opposite sides of a pair of brackets 8 fixed to the inner surfaces of both the left and right frames 2, and 10 denotes small-diameter supported shafts formed on both ends. It is a cross roller that winds up the woven fabric C from the tension bar 6, the portion 10a of which is rotatably supported at a fixed position by the support roller 7, and the tips of both supported shaft portions 10a are provided with the rollers shown in FIG. As shown in FIG.
Connecting shaft portions 10b having a smaller diameter than Oa are each integrally formed, and a groove 10c for receiving power is cut out at the tip of both connecting shaft portions 10b.

Reference numeral 11 denotes a drive shaft which is rotatably supported on the same axis as the rotational axis of the cross roller 10 to a shaft support tube 12 screwed and fixed to the right frame 2 as shown in FIG. The end portion has a concave R of the connecting shaft portion 10b.
A plate-shaped projection 11a that can be loosely engaged with 10c is integrally formed.

13 is a shaft support cylinder 14 screwed and fixed to the left frame 2
On the other hand, the guide rod for positioning the cross roller 10 is supported and fixed so as to be positioned on an extension of the rotational axis of the cross roller 10, and the concave groove 10c of the connecting shaft portion 10b is made flush with the tip thereof. I try to make it fun.

Reference numeral 15.16 denotes a sleeve that is slidably fitted to the outer periphery of the drive shaft 11 and one connecting shaft portion 10b and the guide rod 13 and the other connecting shaft portion 10b in a direction away from the connecting shaft portion 10b. This prevents the cross roller 10 from being eccentric from the axial position of the drive shaft 11 and guide rod 13.

Reference numeral 17 and 18 denote a stopper having a planar shape and having a bolt 19 attached to the shaft support cylinders 12 and 14 so as to be rotatable in the vertical direction. 15 and 16 in place.

Next, the drive mechanism for transmitting the rotation of the drive shaft 3 of the surface roller 1 to the cross roller 10 will be explained with reference to FIGS. It is a mounting cylinder fitted so as to be rotated via a one-way clutch 21 and a bearing (not shown) that are interlocked with each other, and a flange 20a is integrally formed on the outer periphery of the mounting cylinder, and a sprocket wheel 22 is attached to the flange 20a.
is attached with 23 bolts.

Reference numeral 24 denotes a circular mounting plate that is fitted and fixed to the outer end of the drive shaft 11, and a sprocket wheel 26 is connected to the outer peripheral flange portion 24a via a disc brake 25 consisting of two linings 25a and 25b. is braked by a pressing plate 27 which is biased by a spring 34 fitted onto the tightening bolt 28.

Reference numeral 29 denotes a chain suspended between the sprocket wheels 22 and 26. When the chain 29 is rotated by normal rotation of the surface roller 1, the sprocket wheel 26 is connected to the drive shaft via the disc brake 25 and the mounting plate 24. 11.

Further, the disc brake 25 adjusts the tightening force of the tightening bolt 28 so that when a torque larger than a predetermined rotational torque is applied, the mounting plate 24 and the sprocket wheel 26 rotate relative to each other.

Reference numeral 30 designates a one-way clutch 33 and a bearing (not shown) that engages with the chain 29 and rotates freely when the chain 29 rotates forward, with respect to a support shaft 32 inserted and fixed into a shaft support cylinder 31 bolted to the left frame 2. ), the chain 29 and sprocket wheel 26 are stopped when the surface roller 1 cannot be reversed and is returned to its original position.

Next, the operation of the cross roller drive support device configured as described above will be explained.

Now, when machine operation is started and the surface roller 1 is rotated in the normal direction, its rotation is caused by the one-way clutch 21, the mounting cylinder 20, the sprocket wheel 22, the chain 29, the sprocket wheel 26, the disc brake 25, the mounting plate 24, the drive The woven fabric C is transmitted to the cross roller 10 via the shaft 11 and the protrusion 11a of the coaxial shaft 11, and the woven fabric C is sequentially wound onto the cross roller 10.

When a scratch occurs on the woven fabric C, the machine is reversed and the thread is removed.

At this time, when the surface roller 1 is reversed, the woven fabric C
The cross roller 10 is reversed due to the tensile force of
When the tension sprocket 30 is reversed, it is stopped by the one-way clutch 33, and the chain 29 and sprocket 26 are also stopped. Therefore, the drive shaft 11 and the mounting plate 24 are rotated by the disk brake 25 by the amount of unwinding of the fabric C, and the cross roller Unnecessary unwinding of the woven fabric C due to the inertial rotation of 10 is prevented.

When the woven fabric C is wound around the cross roller 10 and reaches a predetermined amount, the machine operation is stopped and the cross roller 10 is cut off.

At this time, loosen the bolt 19 and stopper 17.18.
is rotated upward and reversed, and the sleeves 15 and 16 are slid and separated from the connecting shaft portion 10b, and the cross roller 1
0 can be removed while rolling on the support roller 7.

Note that the recess 10c of the cross roller 10 and the protrusion 11a of the drive shaft 11 are loosely engaged to facilitate attachment/detachment, but as shown in FIG. 4, the cross roller 10 is rolled in the direction of the arrow. At this time, the cross roller 10 is rotated in advance so that the groove 10c can be smoothly removed from the protrusion 11a.
It is necessary to align the direction of 0c with the direction of the arrow.

In this way, in the embodiment of the present invention, the cross roller 10
The concave groove 10c of the connecting shaft portion 10b is connected to the protrusion 11 of the drive shaft 11.
a, and the sleeve 15.16 was slidably fitted to the connection shaft portion 10b, the drive shaft 11, and the guide rod 13. This can be easily done by letting it happen.

In addition, in the embodiment described above, a protrusion 11a is formed on the drive shaft 11 so that the rotation of the drive shaft 11 can be transmitted to the cross roller 10, and when the cross roller 10 is cut off, the lock can be released in a direction perpendicular to the axial direction. A concave groove 10 is formed on the cross roller 10.
c, but instead, as shown in FIG. Engagement protrusions 15a capable of engaging with the engagement grooves 10d and 11b may be formed at two locations on the surface to transmit power.

Further, the engaging grooves 11b, 10d and the engaging protrusions 15a may be formed on the entire outer periphery of each member.

In these cases, if the sleeve 15 is removed from the connecting shaft portion 10b, the engagement between the cross roller 10 and the drive shaft 11 is released, so that the work of positioning the groove 10c and the protrusion 11a described above can be omitted, making it more convenient. The cross roller 10 can be easily cut and removed.

As described in detail above, the present invention is such that the outer periphery of the cross roller near both left and right ends is rotatably supported by a pair of front and rear support rollers. The guide rods are supported so as to be located on the same axis, and are slidable in the axial direction with respect to one end of the cross roller and the tip of the drive shaft, and with respect to the other end of the cross roller and the tip of the guide rod. The cross roller is fitted with a sleeve, and a retaining means is provided between one end of the cross roller and the tip of the drive shaft for transmitting power with or without the sleeve. This has the effect of making it easier to remove.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the cross roller drive support device of the present invention, FIG. 2 is a front view, and FIG.
4 is an exploded perspective view of the vicinity of the cross roller, FIG. 4 is a side view of the vicinity of the cross roller, and FIG. 5 is an exploded perspective view showing another means for transmitting power from the drive shaft to the cross roller. Support roller 7, cross roller 10, supported shaft portion 1Oa, connecting shaft portion 10b1 concave groove 10cz engagement groove 10d1 drive shaft 11. Protrusion 11a, engagement groove 11b. Guide rod 13, sleeve 15゜16, engagement protrusion 5a0

Claims (1)

[Claims for Utility Model Registration] 1. The outer periphery of the cross roller near both left and right ends is rotatably supported by a pair of front and rear support rollers, and on both sides of the cross roller there is a drive shaft for the roller and a shaft for positioning the roller. The guide rods are supported so as to be located on the same axis, and are slidable in the axial direction with respect to one end of the cross roller and the tip of the drive shaft, and with respect to the other end of the cross roller and the tip of the guide rod. A loom fitted with a sleeve, further comprising an engagement means between one end of the cross roller and the tip of the drive shaft for transmitting power with or without the sleeve. A drive support device for cross rollers for indirect winding. 2. The retaining means for transmitting the rotation of the drive shaft to the cross roller is constituted by a protrusion formed at the tip of the drive shaft and a groove formed at one end of the cross roller. A drive support device for a cross roller for indirect winding in a loom according to paragraph 1. 3 The engagement means for transmitting the rotation of the drive shaft to the cross rollers is defined as a utility model registration claim, in which the engagement means is formed by an engagement groove and an engagement protrusion formed in the axial direction on the drive shaft, the sleeve, and the cross rollers. A drive support device for a cross roller for indirect winding in a loom according to item 1. 4. A drive support device for a cross roller for indirect winding in a loom according to claim 1, wherein the sleeve is held in an engaged position by a stopper.