JPH0635297B2 - Unraveling method and unraveling device in 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 pulling out a cloth from a supplied original roll in a spreading machine that performs spreading work such as folding and folding, and a unwinding device for performing the unwinding method. .

(Prior Art and Problems Thereof) In the above-described spreading machine, as is well known in the art, a horizontally driven roller for driving a raw fabric roll and a roller for contacting the raw fabric roll in 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 in which the free end of the fabric body is pulled out from the anti-roll and laid over the original roll contact drive roller 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.

(Means for Solving Problems) In view of the conventional problems as described above, the present invention proposes an effective resolving method for automatically performing the resolving work, and its features Is a first roller for horizontally driving the original fabric roll contact drive, and an inclined support rail for supporting both ends of the core shaft of the original fabric roll so that the original fabric roll comes into contact with the first roller substantially in parallel. In a spreading machine equipped with, a second roll for unraveling is provided on the upper side of the first roller so as to come into contact with and separate from the peripheral surface of the original roll, and the original roll is supported on the inclined support rail. Is reversely driven by the reverse rotation of the first roller, and the first roller is driven in a state where the free end of the cloth body extends upward from a position where it contacts the first roller to a position that faces the second roller. Stop the second roller in such a state, the free end of the cloth body The first end of the cloth body by rotating the second roller.
By pulling to the upper side of the roller and then separating the second roller and then rotating the first roller in the forward direction, the original roll is driven to rotate in the forward direction so that the cloth body is passed through the upper side of the second roller. There is a point to let out.

The present invention also proposes a resolving apparatus suitable for implementing the above-mentioned resolving method. The feature of this defibrating device is that the first roll for contact drive of the original roll which is horizontally supported and can be driven to rotate in any forward and reverse directions, and the original roll comes into contact with the first roller substantially in parallel. An inclined support rail that supports both ends of the core axis of the original roll, a second roller for disengagement capable of contacting the original roll on the upper side of the first roller, and a second roller that abuts the peripheral surface of the original roll. Position switching means for moving between a contacting position and a standby position separated from the original roll peripheral surface; a rotation driving means for rotationally driving the second roller in a direction opposite to the normal direction of rotation of the first roller; A detector for detecting a detected mark formed on the cloth surface of the original roll when the free end of the cloth of the original roll is located at a position facing the second roller, and the detection operation of the detector Stops reverse rotation of the first roller in conjunction with A second roller that rotates together thereby lies in having a control unit for switching into the operating position.

(Operation of the invention) The original roll is placed on the inclined support rail in such a direction that the free end of the fabric body pulled out from the lower side of the original roll can be hung over the upper side of the original roll contact drive roller. Reprinted in. Thus, when the original fabric roll is transferred onto the inclined support rail and the peripheral surface of the original fabric roll is brought into contact with the first roller, the position of the cloth free end of the original fabric roll is constant. Absent. Therefore, even if the first roller is rotated in the normal cloth feeding direction (normal rotation direction) in this state, it is hardly expected that the free end of the cloth is pulled out onto the first roller. That is, in order to reliably pull out the free end of the cloth body from the original roll by the forward rotation of the first roller,
It is necessary to draw out the free end of the cloth body so as to cover the first roller in advance.

Conventionally, this work was performed manually, but according to the method of the present invention described above, positioning of the free end of the cloth body by reverse rotation driving of the first roller for driving the original fabric roll and positioning of the second roller By the contact rotation with respect to the free end of the cloth, the free end of the cloth can be pulled out from the original roll so as to be covered on the first roller. In this manner, when the free end of the cloth body is pulled out onto the first roller, by rotating the first roller in the forward direction, the original cloth roll is continuously rotated while being contact-rotated in the cloth feeding direction. The body can be pulled out by the first roller and sent out downward.

In the above-mentioned device of the present invention, the cloth surface of the original roll is previously in a state in which the free end of the cloth extends above the position facing the second roller from the contact position with the first roller. By forming a mark to be detected at a position facing the detector at a certain time by an appropriate method such as sticking a mark sheet, the control means interlocks with the detection operation of the detector and the first roller. Since the reverse rotation of the first roller is stopped and the rotating second roller is switched to the operating position, the reverse rotation of the first roller and the subsequent position switching of the second roller can be automatically performed.

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

In FIG. 1, reference numeral 1 denotes a reversing machine main body, which can reciprocate on the retraction workbench 2 in the length direction of the workbench 2 and can move laterally in the upper and left directions. A horizontal moving table 3 is provided, and on the horizontal moving table 3, a turntable 5 capable of reversing 180 degrees in the normal and reverse directions 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 pay-out roller, which is axially supported adjacently to the end of the conveyor 8 and is interlocked with the second belt conveyor 8, is a widthwise wrinkle-rolling device provided in parallel with the pay-out roller 9, and 11 is a rear part of the spreader 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 figure, the first roll 12 for driving and driving the raw roll which is horizontally supported and interlocked with the motor M1, and the raw roll R so that the raw roll R abuts the first roller 12 substantially in parallel. A pair of right and left inclined support rails 13 for supporting both ends of the core shaft C, a second roller 14 for disengagement capable of contacting the original roll R on the upper side of the first roller 12,
Position switching means 15 for moving the second roller 14 between an operating position A where it abuts the peripheral surface of the original roll and a standby position B which is separated from the peripheral surface of the original roll, the second roller 14
Is provided with a rotation driving means 16 for rotationally driving the first roller 12 in a direction opposite to the normal rotation direction, an axial positioning means 17 for the original roll R, and a detector S1 using a retroreflective photoelectric switch.

The second roller 14 is supported between the upper ends of a pair of left and right swing arms 18a and 18b that are swingably fitted and supported on both end support shafts 12a of the first roller 12 via the support shaft 14a. . As shown in FIG. 5, the position switching means 15 includes a tension coil spring 1 that is stretched between the lower end of one swing arm 18a and the turntable side frame 5a.
9, a rotary solenoid RS1 attached to the turntable side frame 5a, and a link 21 connecting the drive lever 20 of the rotary solenoid RS1 and the lower end of the swing arm 18a. or,
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 the second roller support shaft 1.
4a, and a belt (or chain) transmission mechanism 22 for interlocking connection with one end of the 4a. Reference numeral 23 is a plurality of belt guide wheels pivotally supported by the swing arm 18b, and 24 is a cover 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. The fixed guide plate 25 is externally fitted to a square shaft 28 fixedly installed in parallel with the first roller 12 between the one turntable side frame 5 a and the intermediate bearing 27 so as to be movable only in the axial direction, and fixed by a fixing screw 29. The boss 30 is fixed at an arbitrary position, and is fixed after adjusting the position in the axial direction of the original roll. The movable guide plate 26 is parallel to the first roller 12 and a boss 32 that is screwed into a rotary screw shaft 31 that is supported in parallel with the first roller 12 between the other turntable side frame 5a and the intermediate bearing 27. A slide boss 34 that is loosely fitted to a guide rod 33 fixedly installed between the turntable side frames 5a, and the rotary screw shaft 31 has a belt (or chain) transmission mechanism 3
A motor M3 is interlocked and coupled via 5.

It should be noted that, as shown in FIG. 1, the spreader main body 1 uses a photoelectric switch for detecting 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 S using a photoelectric switch for detecting the free end of the cloth body fed out by a predetermined length from the delivery roller 9.
3 is provided, and the turntable 5 is provided with a detector S4 using a photoelectric switch for detecting the presence or absence of a cloth body in the cloth movement path from the first roller 12 to the first belt conveyor 7. There is. Further, M4 is a motor for driving the first belt conveyor 7, and M5 is a second belt conveyor 8
And a motor for driving the feeding roller 9.

As shown in FIG. 7, the original fabric roll R has a direction in which the cloth body T of the original fabric roll R can be brought into contact with the first roller 12 from the lower side of the original fabric roll R and pulled out upward. It is supported on the inclined support rail 13 via the
As shown in the figure, on the surface of the cloth T exposed on the peripheral surface of the original roll R, when the free end Te of the cloth of the original roll R is in a position facing the second roller 14, As detected by the detector S1, a position separated from the free end of the cloth T by a constant distance l1 in the cloth length direction and from a side edge of the unit body T by a constant distance 12 in the cloth width direction. A detection mark K using a light-reflecting tape is attached in advance.

On the other hand, as shown in FIG. 7, regarding the unraveling work, the motors M1, M2, M4 and the rotary solenoid RS1 are automatically controlled by the control means 36 such as a microcomputer based on the detection signals from the detectors S1, S2. Controlled.

When the original fabric roll R is transferred onto the inclined support rail 13 in a predetermined direction as described above, one end of the original fabric roll R is fixed to the fixed guide plate 2 of the positioning means 17 as shown in FIG.
In this state, the motor M3 is energized to rotate the rotary screw shaft 31 in the forward direction to move the movable guide plate 26 laterally to a position where it abuts against the other end of the original 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 the 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, which is 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 on the inclined support rail 13 in a predetermined direction 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. It is driven and the first belt conveyor 7 is driven in a predetermined direction by the motor M4.
As a result, the original roll R contacting the first roller 12 rotates in a direction in which the cloth body free end portion Te extends rearward as shown in FIG. 2 When it reaches the position facing the roller 14, the detected mark K
Is detected by the detector S1, 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,
The second roller 14 is switched from the standby position B to the action position A, and the second roller 14 is rotationally driven in the direction opposite to the normal rotation direction (cloth body feeding direction) of the first roller 12. Therefore, as shown in FIG.
Since the roller 14 contacts the free end Te of the cloth body Te of the original roll R, the free end Te of the cloth body is pulled by the second roller 14 to the upper side of the first roller 12.

When the set time t1 elapses after the second roller 14 is switched from the standby position B to the operating 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 move from the operating position A to the standby position B.
And the second roller 14 stops.
After that, the first roller 12 is driven to rotate in the normal direction by the motor M1, and as shown in FIG. 9, the original roll R contacting the first roller 12 makes contact with the original cloth feeding direction and rotates while rotating in contact with the normal roller 12. Thus, the cloth body T is pulled out from the original fabric roll R, and is sent out downward via the upper side of the first roller 12.

The cloth T fed by the first roller 12 is the first
First driven by motor M4 as shown
It is detected by the detector S2 in the process of being supplied onto the belt conveyor 7 and being sent out to the start end of the second belt conveyor 8 by the end of the first belt conveyor 7, and the detection of this detector S2 ( ON) operation, the power supply to the motors M1 and M4 is cut off, and the first roller 12
Further, the driving of the first belt conveyor 7 is automatically stopped and the unwinding is completed. For example, the cloth T is detected from the detection operation of the detector S1 or the normal rotation of the first roller 12. A set time t2 that is slightly longer than the time required to reach the position detected by the detector S2 is set, and this set time t2 is set before the detector S2 is turned on.
Immediately after the elapse, the emergency stop of all is determined as the unsolving failure, and the unsolving failure is notified by a buzzer or a lamp.

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 conveyed over substantially the entire length of the first belt conveyor 7. Therefore, the time required until the cloth T is detected by the detector S2 becomes long. Therefore,
When the turntable 5 is turned over like this,
From the detection operation of the detector S1 or the first roller 12
Is set in advance for a time t3 slightly longer than the time required for the cloth T to reach the position detected by the detector S2 from when the turntable 5 is reversed. When the set time t3 elapses before the detector S2 is turned on, all of them are immediately stopped as an unsolving failure, and the unsolving failure is notified by a buzzer or a lamp.

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 this, the motors M1, M4, M5
The first roller 12, the first belt conveyor 7, the second belt conveyor 8 and the feeding roller 9 are driven to rotate normally, and the cloth T fed from the original roll R is fed to the first belt conveyor 7 It is sent out to the position detected by the detector S3 via the two-belt conveyor 8 and the feeding roller 9. Then, the motors M1, M4, M5 are de-energized in conjunction with the detection operation of the detector S3, and the first roller 12, the first belt conveyor 7, the second belt conveyor 8 and the feeding roller 9 are stopped and extended. Preparation work is completed. When the fabric body T passes over the payout roller 9, the widthwise wrinkle stretching device 10 stretches both side portions of the fabric body T outwardly to remove wrinkles.

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.
Of the first roller 12, the first belt conveyor 7, the second belt conveyor 8 and the payout roller 9 in reverse rotation to rewind them to the original roll R. In this case, the cloth T
Is rewound onto the turntable 5 and the detector S4 is OF
After a lapse of a set time from the time of becoming F, 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, each motor M1, M4, By energizing M5, the first roller 12, the first belt conveyor 7, the second belt conveyor 8, and the feeding roller 9 can be automatically stopped.

It should be noted that the total 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 should 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. However, regardless of whether the turntable 5 is inverted, the set time t
It can be controlled by 2.

(Effect of the invention) As described above, according to the unraveling method of the present invention, as long as the original roll is transferred on the inclined support rail in a predetermined direction, the cloth on the original roll at the time of transfer is transferred. The cloth free end can be pulled out regardless of the position of the free end of the body and without requiring manpower, and the efficiency of the unraveling work can be improved and rationalized. Particularly, according to the unraveling apparatus of the present invention shown in the embodiments, the above-described unraveling method of the present invention can be carried out fully automatically.

[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.
Is a flowchart for explaining the procedure of the unraveling method. 1 ... Spreading machine main body, 2 ... Spreading workbench, 3 ... Traverse table, 5 ... Turntable, 6 ... Dismantling device, 7 ...
First belt conveyor, 8 ... Second belt conveyor, 9 ...
… Supply roller, 10 …… Width direction wrinkle spreading device,
11 ... Cloth front-back separation and cutting device, 12 ... first roller for driving contact of original fabric roll, 13 ... pair of left and right inclined support rails, 14 ... second roller for unraveling, 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 ... Cloth free end, K ...
Detected mark.

Claims (2)

[Claims] 1. A horizontal roller-supported first roller for driving a raw fabric roll, and an inclination for supporting both ends of a core shaft of the raw fabric roll so that the raw fabric roll contacts the first roller substantially in parallel. In a spreading machine equipped with a support rail, a defusing second roller which is freely contactable with and separable from the peripheral surface of the original roll is provided above the first roller, and is supported on the inclined support rail. The original roll is reversely driven by the reverse rotation of the first roller, and the free end of the cloth body is extended from a position where it contacts the first roller to a position higher than a position facing the second roller. 1 roller is stopped, the second roller is brought into contact with the cloth free end portion in such a state, and the cloth free end portion is drawn to the upper side of the first roller by the rotation of the second roller. After the second roller is separated from the first roller, By forward rotation of the color, in the solution reaction method in the cloth spreading machine for causing unwound the master roll by a positive rotational drive to the fabric body by way of an upper side of the second roller. 2. A first roll for contact drive of a raw roll which is horizontally supported and rotatable in any forward and reverse directions, and a raw roll so that the raw roll comes into contact with the first roller substantially in parallel. Support rails for supporting both ends of the core shaft of the core, a second roller for disengagement capable of abutting the original roll on the upper side of the first roller, and an operating position for abutting the second roller on the peripheral surface of the original roll. And a standby position separated from the peripheral surface of the original roll, a position switching means, a rotation drive means for rotationally driving the second roller in a direction opposite to the normal rotation direction of the first roller, and an original roll. The free end of the cloth body is the second
A detector that detects a detected mark formed on the cloth surface of the original roll when the roller is at a position facing the roller is provided, and the reverse rotation of the first roller is stopped in conjunction with the detection operation of the detector. A defibrating device in a retraction machine, which is provided with a control means for switching a second roller that rotates together with the second roller to the working position.