JPH0688689B2 - Disentangling method in the spreading machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention cuts and stacks a cloth, which has been fed from an original fabric roll on a loom, into a required length on a workbench for processing such as cutting. The present invention relates to a method of unwinding a cloth in a cloth spreading machine that performs folding work such as folding and folding, and automatically pulls out a cloth from a supplied material roll and sends the cloth to a cloth moving path.

(Prior Art and Problems Thereof) In the above-described spreading machine, as is well known in the art, a horizontally driven roller for contacting an original fabric roll and a roller for contacting the original fabric roller substantially parallel to each other. An inclined support rail that supports both ends of the core shaft of the original roll is provided so as to be in contact with each other.

On the inclined support rail, the raw fabric roll is transferred in such a direction that the free end of the cloth body pulled out from the lower side of the raw fabric roll can be stretched over the upper side of the raw fabric roll contact drive roller. If the original roll is transferred onto the inclined support rail in this way, by pulling out the free end of the cloth body and hanging it over the original contact drive roller as described above,
It is possible to pull out the fabric body and feed it downward while rotating the original roll in contact with the roller in the opposite direction by the normal rotation of the roller, but as described above, the original transferred on the inclined support rail is transferred. Conventionally, the unraveling work of pulling out the free end of the cloth body from the unrolled roll has been performed manually.

Therefore, even if the fabric spreading machine can be automatically operated to carry out the fabric spreading action automatically, it requires a great deal of time and effort for the unfolding work after the transfer of the original fabric rolls. Could not be rationalized. Therefore, if the original roll is transferred onto the inclined support rail, a defusing device that automatically draws out the fabric from the original roll and sends it out has been considered, but such a defusing device is used. In such a case, an unexpected situation may occur in which the reaction reaction is not performed as expected due to some reason, such as a difference in the physical properties of the cloth body in the material roll to be disassembled. Unless such a resolving failure can be detected promptly and automatically and the device can be brought to an emergency stop, the effect of introducing the resolving device as described above is more than sufficient. I can't show it.

(Means for Solving Problems) The present invention has been made in view of the above-mentioned conventional problems, and is characterized by a defibrating device that pulls out a fabric body from an original roll and sends it downward. A detector that detects when the cloth reaches a fixed position on the cloth moving path from
The cloth sent out from the defibrating device has a preset time slightly longer than the time required to reach the fixed position, and when the set time elapses before the detector detects the cloth, It is in the point of applying an emergency stop as a poor solution.

(Operation of the Invention) By operating the unraveling device in a state where the original fabric roll is set at a predetermined position with respect to the unraveling device, the cloth body is automatically pulled out from the original fabric roll, and the cloth body movement is performed. It is sent to the route. That is, the unraveling work is automatically performed without requiring labor as in the conventional case. The cloth sent out from the defibrating device is sent to a predetermined part through the cloth moving path, but if the defusing action by the defibrating device is normally performed, within the set time. The cloth body reaches the fixed position in the middle of the cloth body movement path and is detected by the detector, but when the unraveling is not performed normally, for example, when the cloth body is not pulled out from the original fabric roll or If the pulled-out fabric is caught on something in the defibrating device, or if the fabric is not delivered at the normal speed, the The body is not detected. In such a case, an emergency stop is applied to the device when the set time has elapsed, so that it is possible to start the recovery work for removing the cause of the undeflecting failure.

(Example) Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a main body of a reversing machine, which can reciprocate on a retraction workbench 2 in the length direction of the workbench 2 and move to the left and right in the lateral direction. A traversable table 3 is provided, on which a turntable 5 capable of reversing 180 degrees forward and backward is supported around a vertical axis 4. 6 is a defibrating device provided on the turntable 5, 7 is a first belt conveyor provided on the traverse table 3, 8 is a second belt conveyor provided on the retraction machine body 1, and 9 is a second belt. A payout roller which is axially supported adjacent to the end of the conveyor 8 and is interlockingly connected to the second belt conveyor 8, 10 is a widthwise wrinkle spreading device provided alongside the payout roller 9, and 11 is a rear part of the spreading machine main body 1. It is a conventionally well-known cloth front-back separation and cutting device disposed at the lower end portion.

The unraveling device 6 on the turntable 5 is shown in FIGS.
As shown in the drawing, a first roller 12 for contact drive of the original roll which is horizontally supported and interlocked with the motor M1, and an original roll so that the original roll R abuts the first roller 12 substantially in parallel. A pair of left and right inclined support rails 13 for supporting both ends of the core shaft C, and the original roll R on the upper side of the first roller 12.
A second roller 14 for disengagement capable of abutting against, a position for moving the second roller 14 between an operating position A in which the second roller 14 is in contact with the peripheral surface of the original roll and a standby position B separated from the peripheral surface of the original roll. Switching means 15, the second roller 14 to the first roller
Rotational drive means 1 for rotationally driving in the direction opposite to the normal direction of 12
6, an axial positioning means 17 for the original roll R, and a detector S1 using a retroreflective photoelectric switch.

The second roller 14 is a support shaft 12a at both ends of the first roller 12.
A pair of left and right swing arms 18a, which are externally supported to be swingable on
It is supported between the upper ends of 18b via a support shaft 14a. As shown in FIG. 5, the position switching means 15 includes a tension coil spring 19 stretched between the lower end of one swing arm 18a and the turntable side frame 5a and the turntable side frame 5a. It comprises a mounted rotary solenoid RS1 and a link 21 connecting the drive lever 20 of the rotary solenoid RS1 and the lower end of the swing arm 18a. As shown in FIG. 4, the rotation driving means 16 includes a motor M2 mounted inside the lower end of the other swing arm 18b, the motor M2 and one end of the second roller support shaft 14a. Belts (or chains) linked together
It is composed of a transmission mechanism 22. 23 is the swing arm
A plurality of belt guide wheels pivotally supported by 18b, and 24 are covers attached to the swing arm 18b so as to cover the belt transmission mechanism 22.

The axial positioning means 17 for the original roll R includes a fixed guide plate 25 and a movable guide plate 26. Fixed guide board
25 is externally fitted to an angular shaft 28 fixedly installed in parallel with the first roller 12 between one of the turntable side frames 5a and the intermediate bearing 27 so as to be axially movable only, and fixed at an arbitrary position by a fixing screw 29. A boss 30 to be fixed is provided, and the position is adjusted in the axial direction of the original roll and then fixed. The movable guide plate 26 is provided between the other turntable side frame 5a and the intermediate bearing 27 so as to form the first roller.
A boss 32 screwed onto a rotary screw shaft 31 supported in parallel with 12,
A slide boss 34 which is loosely fitted to a guide lock 33 fixedly installed between the turntable side frames 5a in parallel with the first roller 12 is provided, and the rotation screw shaft 31 is provided with a belt (or chain) transmission mechanism 35. Motor M3 is linked together.

It should be noted that, as shown in FIG. 1, the reversing machine main body 1 uses a photoelectric switch that detects the free end of the cloth body at an intermediate position between the end of the first belt conveyor 7 and the start of the second belt conveyor 8. A detector S2 and a detector S3 using a photoelectric switch for detecting the free end of the cloth body fed out for a predetermined length from the feeding roller 9 are provided, and the turntable 5 has a first roller.
A detector S4 using a photoelectric switch for detecting the presence / absence of a cloth body is provided in the cloth body movement path from 12 to the first belt conveyor 7. Further, M4 is a motor for driving the first belt conveyor 7, and M5 is a motor for driving the second belt conveyor 8 and the feeding roller 9.

As shown in FIG. 7, the original roll R has a direction in which the cloth T of the original roll R can be brought out from the lower side of the original roll R by contacting the first roller 12 and pulling the core shaft C upward. Although it is supported on the inclined support rails 13 via the cloth, the cloth of the original roll R is attached to the surface of the cloth T exposed on the peripheral surface of the original roll R as shown in FIGS. 6 and 7. The free end Te is the second
The fabric body is spaced from the free end of the fabric body T by a constant distance 1 in the fabric body length direction and is detected from one side edge of the body body T of the unit so that the fabric body T can be detected by the detector S1 when it is in a position facing the roller 14. A detected mark K using a light-reflecting tape is attached in advance at a position separated by a constant distance 12 in the width direction.

On the other hand, as shown in FIG. 7, regarding the unraveling work, the motor is controlled by the control means 36 such as a microcomputer.
M1, M2, M4 and rotary solenoid RS1 etc. are the detector S
It is automatically controlled based on the detection signals from 1 and S2.

When the original fabric roll R is transferred on the inclined support rail 13 in a predetermined direction as described above, one end of the original fabric roll R is close to the fixed guide plate 25 of the positioning means 17 as shown in FIG. In this state, the motor M3 is energized to rotate the rotating screw shaft.
31 is rotated in the forward direction to move the movable guide plate 26 laterally to a position where it abuts on the other end of the original fabric roll R. An overload resulting from the contact of the movable guide plate 26 with the other end of the original roll R is detected by a torque limiter interposed in the transmission mechanism between the motor M3 and the rotary screw shaft 31, and the motor is detected. The movable guide plate 26 can be automatically stopped by cutting off the power supply to M3.

Next, the unraveling method of the present invention performed by the automatic control by the control means 36 will be specifically described with reference to the flowchart of FIG.

As described above, if the original roll R is transferred in a predetermined direction on the inclined support rail 13 and the axial position of the original roll R is regulated by the positioning means 17, the first roller 12 is reversed by the motor M1. Driven and first by motor M4
The belt conveyor 7 is driven in a predetermined direction. As a result, the original roll R contacting the first roller 12 rotates in the direction in which the cloth body free end portion Te extends rearward as shown in FIG. The detector S1 detects the detected mark K when it reaches a position facing the two rollers 14, and the reverse rotation drive of the first roller 12 by the motor M1 is automatically stopped in conjunction with this detection operation.

Next, the rotary solenoid RS1 and the motor M2 are energized, and the drive lever 20 swings the swing arm 18a through the link 21 against the biasing force of the spring 19 to move the second roller.
14 is switched from the standby position B to the operating position A, and the second roller 14 is rotationally driven in the direction opposite to the normal rotation direction of the first roller 12 (the cloth feeding direction). Therefore, as shown in FIG. 8, the rotating second roller 14 contacts the free end Te of the fabric body of the original roll R, so that the free end Te of the fabric is transferred to the first roller 12 by the second roller 14. Pulled up.

When the set time t1 elapses after the second roller 14 is switched from the standby position B to the action position A, the rotary solenoid RS1 and the motor M2 are de-energized, and the swing arm 18a is retracted by the urging force of the spring 19. The second roller 14 swings to return from the operating position A to the standby position B, and the second roller 14 stops. After this, the motor
The first roller 12 is driven to rotate in the normal direction by M1, and as shown in FIG. 9, the original fabric roll R abutting on the first roller 12 is contact-rotated in the regular cloth feeding direction and is rotated by the first roller 12 to make the cloth T. Is pulled out from the original roll R and is fed downward through the upper side of the first roller 12.

The cloth T fed out by the first roller 12 is supplied onto the first belt conveyor 7 driven by the motor M4 as shown in FIG. It is detected by the detector S2 in the process of being sent to the start end of the belt conveyor 8, and the motors M1, M4 are interlocked with the detection (ON) operation of the detector S2.
The power supply to the first roller 12 and the first belt conveyor 7 is automatically stopped and the unraveling is completed. For example, from the detection operation of the detector S1, or when the first roller 12 is in the normal state. The set time t2, which is slightly longer than the time required for the cloth T to reach the position detected by the detector S2 after the roll driving, is set in advance.
When this set time t2 elapses before is turned on, all of them are immediately stopped as an unsuccessful solution, and a buzzer or a lamp notifies the unsuccessful solution.

As shown in FIG. 1, when the first roller 12 is located above the end portion of the first belt conveyor 7, the cloth T of the original fabric roll R is placed inside the original fabric roll R. Is conveyed by the first belt conveyor 7 so that the surface thereof becomes the front side, but when the surface of the cloth body T on the outer side of the original roll R is conveyed by the first belt conveyor 7 so as to become the front side, After setting the original roll R on the inclined support rail 13, the turntable 5 is turned over 180 degrees. in this case,
As shown by the phantom line in FIG. 1, the cloth T fed from the first roller 12 is supplied to a position near the starting end of the first belt conveyor 7 and is conveyed over substantially the entire length of the first belt conveyor 7. The time required for the cloth T to be detected by the detector S2 becomes long. Therefore, when the tune table 5 is inverted as described above, the detector S1
Setting time that is slightly longer than the time required for the cloth body T to reach the position detected by the detector S2 from the time when the first roller 12 is driven to rotate normally.
When t3 is also set in advance and the turntable 5 is turned over, when the set time t3 elapses before the detector S2 is turned on, all of them are immediately stopped as an unresolved failure, and a buzzer or a lamp is used. Informs you of anti-defect.

As described above, the unraveling device 6 automatically performs the unraveling, but when the unraveling is completed, the driving means of the traverse table 3 is actuated, and the traverse table 3 traverses in a predetermined direction as is well known in the art. Then, the edge aligning action of aligning one side edge of the cloth body T at a predetermined position is performed. After that, the motors M1, M4, M5 are energized, the first roller 12, the first belt conveyor 7, the second belt conveyor 8 and the feeding roller 9 are driven to rotate in the normal direction, and the cloth fed from the original roll R. T is sent out to the position detected by the detector S3 via the first belt conveyor 7, the second belt conveyor 8 and the feeding roller 9. And the motor is interlocked with the detection operation of the detector S3.
The power supply to M1, M4, M5 was cut off, and the 1st roller 12 and 1st
The belt conveyor 7, the second belt conveyor 8, and the payout roller 9 are stopped, and the spreading preparation work is completed.
Incidentally, when the cloth body T passes over the delivery roller 9,
By the widthwise wrinkle spreading device 10, both side portions of the cloth T are stretched outward and wrinkles are removed.

The spreading operation is performed by a conventionally known method, and after the spreading operation is completed, the cloth T remaining in the cloth moving path from the original roll R to the cloth front-back separation and cutting device 11 is removed. ,
The first roller 12, the first belt conveyor 7, the second belt conveyor 8, and the payout roller 9 are respectively driven to rotate in reverse and rewound onto the original roll R. In this case, the cloth body T is wound onto the turntable 5. A set time has passed since the detector S4 was turned off and the detector S4 was turned off, that is, a set time slightly longer than the time required for the cloth T to be completely rewound from the position of the detector S4 to the original roll R. Later each motor M1, M
It is possible to automatically stop the first roller 12, the first belt conveyor 7, the second belt conveyor 8, and the feeding roller 9 by cutting off the power supply to 4, M5.

The length of the second belt conveyor 8 is made long enough to cover the transport area of the first belt conveyor 7, the first belt conveyor 7 is omitted, and the cloth T fed from the first roller 12 of the disentangling device 6 is removed. May be directly delivered to the second belt conveyor 8. In this case, the detectors S2 must be arranged on the side of the hanging position of the cloth T when the turntable 5 is not inverted and on the side of the hanging position of the cloth T when the turntable 5 is inverted. It is necessary to control the turntable 5 at the set time t2 regardless of whether the turntable 5 is inverted.

Of course, even when the first belt conveyor 7 is used as in the above embodiment, the detector S2 detects the cloth T at a position before the cloth T is transferred onto the first belt conveyor 7, Whether or not the reaction is correct may be determined depending on whether or not the detection of the cloth body is performed within the set time. In this case, if the detector S2 is provided on the turntable 5, it is possible to control the turntable 5 at the set time t2 regardless of whether the turntable 5 is inverted while using one detector. Of course, the detector
The function of detector S2 may be combined with S4.

Further, in the above-described embodiment, the cloth free end stop position (intermediate transfer point between the first belt conveyor 7 and the second belt conveyor 8) for performing the edge aligning operation of the cloth T and the correctness of the reaction reaction are set for a set time. Together with the fixed position for distinguishing,
Although it is configured to use the common detector S2, apart from the cloth free end stop position for performing the edge aligning operation of the cloth T, the reaction of the reaction is performed on the side closer to the defusing device 6 than the position. It is also possible to set a fixed position for discriminating the correctness with the set time, and install a detector at each position. In this case, when the detector for determining whether the reaction is correct or not with the set time detects the cloth within the set time, the control for stopping the cloth at the detector position is not performed.

(Effect of the invention) As described above, according to the unraveling method of the present invention, it is reliably detected that the unraveling device that pulls out the fabric from the original roll and sends it out does not function normally, Since the device can be stopped in an emergency, it is possible to prevent the entire incoupling machine from operating with the unsolving failure still occurring, and to quickly perform the recovery work for removing the cause of the unsolving failure. In addition to simply detecting that the fabric has been sent to the fixed position, it also determines the correctness of the reaction by combining the time elements until it reaches the fixed position. Even if it takes a long time to unravel, it is possible to reliably detect the unraveling failure, and it is possible to detect the unraveling failure with high accuracy.

[Brief description of drawings]

FIG. 1 is a schematic side view of the entire rewinding machine, FIG. 2 is a plan view of a resolving device portion, FIG. 3 is a plan view of an axial positioning means of a raw roll, and FIG. Vertical section left side view, No. 5
FIG. 6 is a right side view of the same longitudinal section, FIG. 6 is a perspective view of an original fabric roll, and FIGS. 7 to 9 are side views of essential parts for explaining the unraveling method.
The figure is a flowchart for explaining the procedure of the unraveling method. 1 ... Spreading machine main body, 2 ... Spreading work bench, 3 ... Traverse table,
5 ... Turntable, 6 ... Unraveling device, 7 ... 1st belt conveyor, 8 ... 2nd belt conveyor, 9 ... Delivery roller, 10 ... Width direction wrinkle spreading device, 11 ... Cloth front-back separating and cutting device, 12 ... 1st roller for contact drive of original roll, 13
... a pair of left and right inclined support rails, 14 ... second roller for unwinding, 15 ... second roller position switching means, 16 ... second roller rotation driving means, 17 ... original roll axial direction positioning means, S1
~ S4 ... Detector, M1 ~ M5 ... Motor, RS1 ... Rotary solenoid, R ... Original roll, C ... Original roll core shaft, T ...
Cloth, Te ... Free end of cloth, K ... Detected mark.

Claims (1)

[Claims] 1. A detector is provided for detecting that the cloth has reached a fixed position on a moving path of the cloth from the unwinding device for pulling out the cloth from the original roll and sending it downward. A time that is slightly longer than the time required for the delivered fabric to reach the fixed position is set in advance, and when the set time has elapsed before the detector detects the fabric, it is considered as an undefective failure. A method of unraveling in a spreading machine characterized by stopping.