JPS5943417Y2 - Loom winding reversal prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a reversal prevention device that is directly connected to the rotating shaft of a cross roller of a loom.

The purpose of this is that even after the loom's take-up prevention device has stopped operating, the rotation of the rotating shaft connected to the cross rollers of the loom automatically causes the reversal prevention device to return to normal operation and operate. It is an object of the present invention to provide a loom that prevents wrinkles from being drawn due to forgetting to move the bamboo.

In general, woven fabrics wound on cross rollers temporarily tighten or loosen due to the intermittent movement of impact during reed beating, and this is the cause of wrinkles in woven fabrics wound on cross rollers. It has become.

In order to prevent this, in looms that transmit the drive through a friction clutch to prevent the cross rollers from reversing, a ratchet gear is installed within the friction clutch mechanism to prevent reverse rotation, or the cross rollers are directly rotated. It has been proposed and known that a ratchet gear is connected to the shaft to prevent reverse rotation, or that both are used in combination.

If a ratchet gear is incorporated into the friction clutch mechanism, when the cross roller is reversed, such as when replacing the cross roller or adjusting the tension of the fabric, the ratchet gear's reversal prevention stopper (Fig. 3) must be used. Although it is possible to reverse the rotation using the friction of the friction clutch without operating 18), a ratchet gear is connected directly to the rotating shaft of the cross roller, and a reverse rotation prevention stopper (Fig. 3, 4) is used to prevent reverse rotation. In some cases, the cross rollers cannot be reversed unless the reverse rotation prevention stopper is released.

Therefore, when replacing the cross roller or loosening the fabric tension, it is necessary to operate the lever or pedal linked to the anti-reverse stopper to stop the anti-reverse stopper, and to resume normal operation, it is necessary to stop the operation of the anti-reverse stopper. Alternatively, it was necessary to operate the pedal to activate the reverse rotation prevention stopper.

However, in actual work, the operation of this reversal prevention stopper is complicated, so it is often forgotten to reset the reversal prevention stopper when restarting the operation.As a result, the reversal prevention device does not work for a long time, causing wrinkles and defects in the winding. The opposite was often the case.

This invention simplifies the work by improving the reverse prevention stopper of the reverse rotation prevention device directly connected to the cross roller so that it automatically returns to the operating position and operates when normal operation is resumed after the reverse rotation prevention stopper is released. This is intended to prevent the occurrence of wrinkled and defective fabric due to forgetting to return the reversal prevention stopper, which has been a problem in the past.

The present invention fixes a pin or an eccentric cam to a rotating shaft connected to a cross roller or a ratchet wheel connected to the rotating shaft, and fixes an operating lever to a reversal prevention stopper of the ratchet wheel. When the cam reaches a certain angle, the pin comes into contact with the actuating lever, agitating the lever, and activating the reversal stopper.The rotation of the equipped rotary shaft automatically activates the reversal prevention device, resulting in the occurrence of defective rolls. This is a device that prevents

The apparatus of the present invention will be explained below with reference to embodiments shown in the drawings.

Figure 1.2 is an example of a ratchet wheel (ratchet gear) directly connected to a cross roller and a reverse rotation prevention device,
The figure is a front view of the winding device around the cross roller, FIG. 4 is a sectional view thereof, and FIGS. 5 and 6 are schematic explanatory views of an automatic return device for a reversal prevention stopper having a foldable operating lever.

In the figure, 1 is a ratchet wheel directly connected to the rotating shaft of the cross roller to prevent reverse rotation, 2 is a pin fixed to the ratchet wheel, 4 is a stopper for preventing reverse rotation of the ratchet gear, and 5 is a stopper fixed to the reverse rotation prevention stopper 4. The lever 5 is disposed on the side frame 14 via a bracket 12 and a lever pin 11.

Also, the lever 5 moves up and down using the lever pin 11 as a fulcrum,
In the position shown in Fig. 1, the reversal prevention stopper 4 operates, and when the lever 5 is pushed down by hand or the pedal 10 is stepped on and the lever 5 is moved to position b via the wire 8 and guide roller 9, the reversal prevention stopper is activated. 4 goes up and does not operate, but when the hand is released from the lever 5 or the foot is released from the pedal 10, the anti-reverse stopper automatically moves down using the lever pin 11 as a fulcrum due to the weight of the anti-reverse stopper.

When the lever 5 is pushed down in position C, the convex lever stop 6 provided on the lever engages with the lever stop receiver I, which is a leaf spring, and prevents the lever from reversing even if the hand pushing down the lever 5 is released. Stotsuno, -4 doesn't go down.

However, when the loom is operating normally and the rotating shaft of the cross roller rotates, and when the pin 2 (an eccentric cam is also acceptable) that is linked to it comes to position d, it comes into contact with the operating lever 3 fixed to the lever 5 and operates. <-3 is moved from the e position to the f position, the lever stop 6 comes off from the receiver 7, and the reverse rotation prevention stopper 4 is operated downward.

Even if the lever 5 in Fig. 1 is used as a means to raise the reverse rotation prevention stopper 4 by hand, the pedal 1
Only 0 depends on the depth of depression.

It may be a device that operates the C position or a device that has both.

In FIGS. 3 and 4, 14 is a side frame, and 13 is a cross roller rotating shaft supported by the side frame via a coupling. A ratchet wheel 1 and a clutch wheel 19 are fixed to this, and the drive is transmitted. The Cheno wheel 16 and the ratchet gear 22, which prevents the Cheno wheel from reversing, are loosely fitted via a coupling.

The drive chain wheel 15 for rotating the cross roller from the drive section is driven by a chain wheel 16 and a friction clutch drive half 17 fixed to the chain wheel 16 via a ratchet gear 22.

Furthermore, this movement causes the clutch wheel 19 to frictionally slide while correcting the distortion of the beam winding tension and driving torque, and rotates the cross roller 21 fitted via the rotating shaft 13 and the cross roller attachment/detachment joint 20. .

The ratchet wheel 22 fixed between the ten wheel 16 and the friction clutch drive half 17 and this reversal prevention stopper 18 prevent the drive unit and cross roller from reversing, but the relationship between the winding tension and the drive is such that reversal is prevented through frictional sliding. When the torque is heavily distorted, the torque does not work sufficiently, and even after the reverse rotation is stopped by the reverse rotation prevention stopper 18, the cross beam unwinds slightly and winding wrinkles occur.

Therefore, if there are many wrinkles in the winding, a reversal prevention device consisting of a ratchet wheel 1 directly connected to the cross beam rotation shaft 13 and a reversal prevention stopper 4 as shown in FIG. 3 is required.

The embodiment shown in FIG. 3 is equipped with the above-mentioned two types of reversal prevention devices, and the reversal prevention stopper 18 prevents the cross roller from reversing to the extent that it counteracts the friction of the clutch, and also prevents the drive section from torque distortion of the cross roller. The purpose of the reverse rotation prevention stopper 4 is to protect the cross roller from reversing, which cannot handle the friction clutch.

If the cloth on the cross roller is full and the cross roller needs to be replaced, fix the lever 5 in position C, raise the reverse rotation stopper 4, rotate it reversely with your cross beam hand, and loosen the cloth. After casing, the woven fabric is separated, the cross roller attachment/detachment joint 20 is removed, and after the cross roller is replaced, it is fixed again with the attachment/detachment joint, and the woven fabric is wrapped around it.

During this cross roller replacement work, the cross roller shaft must be able to rotate in both forward and reverse directions, so the above work cannot be done without raising the reverse rotation stopper 4, but when restarting the operation, lower the reverse rotation prevention stopper. It is necessary.

However, since it is possible to operate the machine without lowering the reversal prevention stopper, there have been cases in the conventional apparatus in which the machine forgets to lower it and operates, resulting in defective rolls due to winding wrinkles.

However, if the device of the present invention is used, even if the operator does not lower the anti-reverse strike, the anti-reverse strike will automatically increase due to the contact between the pin 2 and the operating lever 3 during one rotation of the rotating shaft during normal operation. Return the par to the working position.

The weave length at the point where the rotating shaft makes one revolution after the start of operation and the anti-reverse stopper comes down does not suffer from wrinkles in the weaving at point 1, which extremely degrades the quality. If there is also a reversal prevention device in the mechanism, this device will partially work until the reversal prevention stopper 4 is activated, making it even more effective.

When reversing the cross roller for adjusting the cloth cloth for interweaving the cloth cloth, repairing scratches, etc., a series of devices including not only the cross roller but also the take-up roll are connected to the drive unit via a noddle. , to unwind the winding, but in this case as well, it is necessary to raise the reversal prevention stopper 4.

For this purpose, the lever 5 is lowered and then the knob is wound back, but if there is a pedal device shown in FIG. 1 of the embodiment, it is more convenient because the handle can be operated while operating the pedal with the foot.

If the structure of the actuating lever 3 is one single structure as shown in Fig. 1, if the pin 2 is in the position near d, the pin 2 will get in the way and the actuating lever 3 cannot be moved from the position of 3 & f to the position of e, and the reverse rotation will occur. Since the stopper 4 cannot be raised, wait until the pin 2 is at a position slightly shifted from the d position and then reverse the rotation.
- It is necessary to increase the value, and there is a slight loss of time.

However, as shown in FIG. 6, the tip of the actuating lever 3 has an actuating lever support pin 24, and an actuating lever top 23 that is rotatable in the direction of the arrow and is prevented from rotating in the direction opposite to the arrow. If the pin 2 is in any position, the anti-reverse stopper 4 can be raised.

For example, even if pin 2 is in position d, the operating lever top 2
Move the actuating lever stopper 25 attached to item 3 from i to position i, fold the actuating lever top 23, raise the reverse rotation prevention stopper 4, and move actuating lever 3 from position f to e.
The power L and the operating lever top 23 are held by the pin 2 at the position shown in FIG.

When the cross beam rotates normally and pin 2 is at position g rather than d, the actuating lever top 23 returns to the original position i due to its own gravity, and pin 2 rotates further and moves to position d again.
Near the position, the actuating lever top 23 and the actuating lever 3 are aligned and come into contact with the pin 2 to move the actuating lever 3 and lower the reverse rotation stopper 4.

The first type is suitable for looms that rotate quickly and require little adjustment of the weaving front.
A single operating lever as shown in the figure may be used, but if the loom rotates slowly or the loom needs to be adjusted frequently, a folding structure as shown in FIG. 6 is more convenient.

The above-mentioned automatic return device for the reverse prevention device of the present invention initializes the worker's task of returning to prevent reverse rotation, eliminates the conventional problem of winding wrinkles caused by forgetting to return the reverse prevention device, and has a simple structure. It is an extremely useful device that can be easily installed on existing equipment because of its high efficiency and has extremely low equipment costs.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are illustrations of one embodiment of the present invention. FIG. 3 is a front view of the winding device around the cross roller,
FIG. 4 is a sectional view thereof. FIGS. 5 and 6 are schematic illustrations of an automatic return device for a reversal prevention stopper having a foldable operating lever. DESCRIPTION OF SYMBOLS 1... Ratchet wheel, 2... Pin, 3... Operating lever, 4... Reverse prevention stopper, 5... Lever, 8... Wire, 9... Wire guide roll, 10... ...Lever operation pedal, 13...Cross roller rotation axis. 23...Operation lever part B

Claims (1)

[Scope of utility model registration request] In a device in which a ratchet wheel is fixed to a rotating shaft connected to a cross roller of a loom and a reverse rotation prevention stopper is used to prevent the cross roller from reversing, an extension end of the rotating shaft connected to the cross roller or a ratchet wheel coupled to the rotating shaft. A pin or an eccentric cam is fixed to the pin or an eccentric cam, and an operating lever is fixed to the anti-reverse stopper, and as the rotating shaft rotates, the pin or eccentric cam comes into contact with the operating lever, agitating the operating lever and actuating the anti-reverse stopper. What is claimed is: 1. A winding reversal prevention device for a loom, characterized in that it is equipped with a mechanism for preventing reverse winding of a loom.