JPS60171958A - Automatic doffing mechanism of cloth winding roll exchange apparatus - Google Patents

Abstract

PURPOSE:To automatically load and unload a cloth winding roll and a bearing of an apparatus for automatically exchanging cloth winding rolls by providing means for detecting the advance of a roll exchange arm into a roll load and unload position and means for detecting the detachment and attachement of the roll to the bearing. CONSTITUTION:By the AND of a roll exchange arm advance signal S1 from a photoelectric detector D1 of advance detecting means and a load signal S2 from a switch D2 indicating the cloth winding roll loading state, with a bearing advanced to the most, a driving motor M is reversed through a control unit Cont, so that the coupling of a cloth winding roll 1 to a bearing 11 is released and the roll 1 is on standby on a rest 9. When with the bearing 11 retreated to the most, a signal S3 indicating the roll loading state is generated from a switch D3 and a roll exchange arm holds an empty roll and advances, the photoelectric detector D1 generates an advance signal S1. When the motor M is turned forward by the AND signal of S1 and S3, a cork 21 of the bearing 11 and a key member 22 advance to be coupled to the empty roll waiting on the rest 9. Thus, the loading of the roll is completed automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic doffing mechanism in an automatic fabric roll changer.

Currently, when replacing cloth rolls on a loom, when the wound cloth reaches a predetermined amount, it is artificially cut in the middle direction with a cutter, and the cloth roll after two windings is removed from the loom and transferred to a trolley, while the empty roll is replaced. It is common to transfer the cloth to the loom, attach it, wrap the edge of the cloth around it, and continue weaving. However.

Such replacement work is surprisingly time-consuming, and on high-speed looms, the loom is forced to stop. Therefore, attempts have been made to use recent robot technology to automatically replace rolls, but there are no robots that can quickly attach and detach empty rolls without stopping the loom. The current situation is that it has not yet been realized.

SUMMARY OF THE INVENTION The present invention aims to provide an automatic doffing mechanism that enables automatic loading and unloading of a cloth roll and a bearing, which is a necessary element in an automatic cloth roll changing device.

The automatic exchange of the cloth roll 1 is carried out when the cloth roll 1 winds up a predetermined amount of cloth W (see Fig. 1).The cloth roll 1 is placed in front of the loom facing a cart 2, and the roll changing arm 6 of this cart 2 is Transferring the cloth roll 1 from the loom side to the trolley 2 in Figure 2~
(See FIG. 4) 3. Next, the empty roll 8 loaded on the trolley 2 is transferred to the M& machine and installed on the loom T (see FIGS. 5 to 7).

In addition, 3 is a press roll 54 that guides the woven cloth, and 5 is a cloth-wrapped press roll, and 5 is a rotation stopper 8 (7, 7).
Reference numeral denotes a roll mounting part that rotates and supports the cloth-wrapped roll 1 transferred onto the trolley 2, 9 a roll rest that supports the cloth-wrapped roll when the cloth-wrapped roll is attached or detached, A a guide roll, and B a waist roll.

In this automatic exchange, the end chuck part 6a of the roll exchange arm 6 grips both ends of the fabric roll 1 attached to the loom bearing! 3 (see Figure 3) and drives the drive device to release the connection between the bearing and the fabric roll 1, and set the fabric roll 1 in a state where it can be transferred to the cart 2. It is also necessary to detect the state in which the roll exchange arm 6 has gripped the empty roll 8 and moved to the loom bearing mounting position (see Fig. 7), and to drive the drive device to connect the fabric roll 1 to the bearing. .

Accordingly, one aspect of the present invention is to allow the drive device to attach and detach the bearing and the fabric roll 1.

Entry detection means D1 for detecting the entry of the roll exchange arm 6 into the cloth-wound roll 1 loading/unloading position; and loading/unloading detection means D2 for detecting the attachment and detachment state of the bearing and the cloth-wound roll.
- 3 are provided, and the drive device is made to perform the attachment/detachment operation by ANDing the roll exchange arm entry signal Sl outputted by these detection means D1 to D3 and the fabric roll attachment/detachment signal S2. The driving device is caused to perform the mounting operation by AND with the signal S3.

In detail, the fabric roll 1 is shown in FIG.

While key grooves 1a are bored in the end faces, a spline bearing 11 is fitted to the drive shaft 10 as shown in FIG.

A key member 22 biased by a cork 21 and a compression spring 23 located at the tip of the bearing is engaged with an inner trapezoidal screw 26b of an annular gear 26 that engages with a drive gear 25 attached to the main shaft of the motor M on the outer periphery. It is possible to move back and forth with the worm gear 24 that moves back and forth by
When the motor M rotates, the cork 21 can rotate back and forth together with the worm gear 24, and when the motor M rotates forward, the worm gear 2
4, the coke 21 rotates forward and enters the end hole 1b of the fabric roll 1.

The key member 22 located on the outer periphery is initially
The key member 22 is brought into contact with the end face of the cloth-wrapped roll 1, and then the key member 22 is aligned with the keyway 1a, and is urged toward the end face of the cloth-wound roll 1 by the compression spring 23 to fit together, and the cloth-wound roll 1 and the bearing 11 are connected. The bearing drive device 20 is configured so that when the motor M rotates in reverse, the cork 21 and the key member 22 move back together with the worm gear 24, and the connection with the cloth-wound roll 1 is released. Therefore, as an entry detection means for detecting entry of the roll exchange arm 6 into the vicinity of the roll rest 9,
For example, a photoelectric detector is provided, and proximity or pressure contact switches D2 and D3 are arranged as attachment/detachment means for detecting the most advanced position and the most retracted position of the bearing 11, and a roll exchange arm entry signal S from the photoelectric detector D1 is provided. , and the mounting signal S2 from the switch D2 indicating the cloth-wrapped roll mounting state, which is the bearing's most advanced position, and the drive motor M is reversed via the control device (Cont, ), the bearing of the cloth-wound roll I can be reversed. 11 is released, and the fabric roll 1 waits to be transferred onto the roll rest 9. Now, in this state, the bearing 11 is in the most retracted position, and the switch D3 is emitting a signal S3 indicating the state of attaching and detaching the cloth-wound roll.

The roll exchange arm 6 grasps the empty roll 8 and enters (
Then, the photoelectric detector D1 emits the approach signal S1, and the AND signal of these SI and S3 causes the control device (C'o
When the drive motor M is rotated in the forward direction via the shafts nt and ), the cork 21 and key member 22 of the bearing 11 move forward and connect with the empty roll waiting on the rest 9, completing the installation of the empty roll 8. .

In order to more reliably perform the loading/unloading operation between the cloth-wrapped roll 1 and the empty roll 8 and the bearing 11, the detection signal S1 is
- In addition to or in place of S2 and S3, the following signals can also be used. for example.

As shown in FIGS. 10 to 12, the roll rest 9 is made to swing around a fulcrum 9c with a concave portion 9a and a guide portion 9b inclined toward the four portions, and both ends thereof are alternately attached to stoppers 12 or 13. In addition, proximity switches or pressure contact switches D4 and D5 are arranged near the stoppers 12 and 13.

When the fabric roll l is mounted on the bearing, the switch D4 is on and the switch D is on, as shown in FIG.

is in the OFF state, and when the empty roll 8 is transferred from the trolley 2 and placed on the guide section 9b, the switch D4 is turned OFF.
, after the switch D5 is turned on (see FIG. 11), when the empty roll 8 is fitted into the recess 9a, the switch D is turned on again.
4 is ON and switch D5 is OFF (12th
(see figure), these signals can be used effectively.

The present invention has been described above based on a specific example.

A device that drives the bearing attachment/detachment mechanism is operated by a roll exchange arm entry signal S1 and a signal S indicating the attachment/detachment position of the bearing and cloth-wound roll.
? Alternatively, various modifications can be made without departing from the automatic doffing function that connects and disconnects the bearing and cloth roll by driving by AND with S3. As described above, according to the present invention, it is possible to configure an automatic doffing mechanism necessary for automatic cloth-wrapped roll exchange, and thus it is possible to provide an automatic cloth-wrapped roll exchange device.

[Brief explanation of the drawing]

1 to 7 are explanatory diagrams showing the automatic dosing mechanism of the present invention, FIG. 8 is a partially sectional front view showing a specific example of the autodosofing mechanism according to the present invention, and FIG. 9 is a cloth wrapping The end views of the roll, FIGS. 10 to 12, are explanatory diagrams when a control signal is detected from the roll rest. 1- Cloth roll, 21 trolley. 6--Roll exchange arm, 9-Roll rest. 1 leaf - drive shaft, 11 - spline bearing, 20 - drive device. D1-D5--detector or switch 2 81-S3.--control signal. Patent applicant Tsudakoma Kogyo Co., Ltd. Representative patent attorney Koji Togawa

Claims (1)

[Scope of Claims] ■ A cloth roll 1 removably attached to a loom T is transferred from the loom T onto a cart 2 by a roll exchange arm 6 of a cart 2 placed opposite to the front of the loom T. This is a fabric roll changing device for transferring empty rolls 8 to be loaded on a cart 2 to a loom and mounting them thereon. Driving means 2 for loading and unloading the cloth roll onto and from the loom bearing 11
0, an entry detection means D1 for detecting the entry of the roll exchange arm 6 into the cloth-wrapped roll loading/unloading position, and loading/unloading detection means D2-3 for detecting the attachment and detachment state of the bearing 11 and the cloth-wrapped roll. The driving device 20 is caused to perform the attachment/detachment by ANDing the roll exchange arm entry signal S1 outputted by these detection means D1 to D3 and the fabric roll attachment/detachment signal S2. An automatic doffing mechanism characterized in that the driving device 20 is caused to perform a mounting operation by AND with a signal S3.