JPH02175550A - Recovering device in spreading machine - Google Patents

Abstract

PURPOSE:To improve efficiency by stopping the rotation of an original cloth roll on detecting an undetected mark in a cloth free-edge portion and rotating a recovering roller in the same direction as the delivery direction of the roll to operate a self-running carriage to the roll side. CONSTITUTION:When an undetected mark formed beforehand on the surface of a cloth both T is detected by a detecting means S1 under the conditions where an original cloth roll 9 is supported by a supporting rotation driving means 10 and a cloth free-edge portion is at an opposed position to a recovering roller 16 on a carriage 15 mobile far and near against the roll 9 along an inclined driving area, the rotation of the roll 9 by the supporting rotation driving means 10 is stopped. At the same time, by driving the roller 16, it is rotated in the same direction as the delivery direction of the roll 9 and the mobile carriage 15 is made to run itself to the side of the roll 9, and the roller 16 is made to come in contact with the outer periphery of the roll 9, so that the cloth free-edge portion is drawn out automatically. This provides the improved efficiency and rationalization of resuming work.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a method for cutting solid objects unwound from a roll of raw material from a loom into required lengths and stacking them on a workbench for processing such as cutting. The present invention relates to a unfolding device for pulling out material from a supplied roll of raw fabric in a spreading machine that folds and folds the fabric.

(Prior art and its problems) Generally, a spreading machine has an inclined support rail that horizontally supports a roll of material at a desired height, and a support rail that supports the material roll supported by this rail and supports the material roll in contact with the material roll. A contact drive roller for rotationally driving the contact drive roller is provided.

However, during the dismantling work, it is necessary to
Place the fabric roll in such a direction that the free end of the fabric pulled out from the bottom of the fabric roll can be passed over the contact drive roller, and then pull out the free edge of the fabric from the fabric roll. The hook is passed over the contact drive roller, and by rotating the contact drive roller, the object is pulled out and sent downward.

However, in the past, the unraveling work was done manually by pulling out the free end of the fabric from the roll and passing it onto the contact drive roller, which required a great deal of time and effort. Ta.

An object of the present invention is to provide a dissolving device that can automatically perform the above-mentioned dissolving work.

(Technical means for solving the problem) The unraveling device of the present invention capable of achieving the above object has a support rotation drive that supports the raw roll at an arbitrary height and contacts and rotates it in the feeding direction. means, a self-propelled cart capable of traveling near and far relative to the roll of material along a track provided in an inclined manner above the supporting rotation driving means; a unraveling roller that is driven and can come into contact with the original fabric roll; and a unraveling roller provided on the fabric surface of the original fabric roll when the free end of the fabric roll of the original fabric roll is in a position facing the unraveling roller. A detection means for detecting a mark to be detected, and in conjunction with the detection operation of the detection means, stops the rotation of the web roll by the support rotation drive means and rotates the unraveling roller in the same direction as the unwinding direction of the web roll. and a control means for rotating the self-propelled cart so as to travel toward the raw roll.

(Operation of the invention) When the original fabric roll is supported by the support rotation drive means,
The position of the free end of the fabric roll is not constant.

Therefore, in the present invention, when the free end of the fabric is in a position facing the unraveling roller on the cart, which can move toward and near the fabric roll by itself along an inclined drive, the fabric roll is The detection means detects a detection mark provided in advance on the surface of the heavy body, and the control means, in conjunction with the detection operation of the detection means, stops the rotation of the web roll by the support rotation drive means, and also unravels the roll. The self-propelled cart is driven toward the roll of raw material by driving the rollers. In this way, when the self-propelled cart approaches the fabric roll and the unraveling roll comes into contact with the outer peripheral surface of the fabric roll while rotating in the same direction as the rotation direction of the fabric roll by the support rotation drive means, the heavy body @ end part It is automatically pulled out from the original roll.

Further, the unrolling roller reliably contacts the outer circumferential surface of the raw fabric roll regardless of the diameter of the raw fabric roll, that is, regardless of the tangible winding thickness.

(Example) An example will be described with reference to the drawings. In FIG. is provided with a lateral movement table 3 that is movable in left and right directions. 4
5 is a first heel conveyor provided below the unraveling device 4, and 6 is connected to one end of the first heel conveyor 5 to the spreading machine main body 1. A second belt conveyor 7 is provided as shown in FIG. This is a well-known heavy body handling and cutting device installed at the lower part of the rear end.

As shown in FIGS. 1 to 6, the unwinding device 4 includes a pair of front and rear inclined heald conveyors 11 and 12 arranged in an inverted shape so as to sandwich the web roll 9 from below. A pair of left and right tracks 13 and 14 are provided in an inclined manner above both left and right end portions of an inclined heald conveyor 12 on one side of the support rotation drive means 10.
A self-propelled trolley 15 that can freely move near and far with respect to the web roll 9 along The unraveling roller 16 can come into contact with the unraveling roller 16, and the free end Te of the tangible T forming the original fabric roll 9 is the unraveling roller 16.
and a detector S1 using a retroreflective photoelectric switch for detecting that the sensor is located at a position opposite to the sensor.

The pair of front and rear inclined belt conveyors 11 and 12 constituting the support rotation drive means 10 each have a single wide conveyor helt 19 (or a heald width direction A drive motor M2 is connected to the rotating shaft of the large-diameter drum 18 of one heald conveyor 12, l-
The rotating shaft of the ram 18 and the rotating shaft of the large-diameter drum 18 of the other heat conveyor 11 are interlocked by a transmission bolt 20, and the rotation of the motor M2 causes both heat conveyors 1L12 to move as shown by the arrows in FIG. It is driven to travel in the direction shown.

The pair of tracks 13 and 14 are connected to a roller chain ( or rank).

Self-propelled trolleys 15 that run along these tracks 13.14
is a pair of left and right car frames 24.24, and these car frames 24.2.
4, a wheel set 25 supported by a bearing 32 between the wheels, a sprocket 26, 27 fixed to both ends of the wheel set 25 and meshing with the roller chain of the track 13, 14, and each wheel frame 24, Support rollers 28 and 29 are rotatably mounted on both upper and lower surfaces of the base plate 23, and a wheel shaft 25
It is composed of a motor M3 which is capable of forward and reverse rotation and is interlocked with one end of the motor M3 via an electromagnetic clutch MC. Therefore, this trolley 15 moves along the outer peripheral surface of the material roll 9 along the track 13.14 by the normal rotation of the motor M3. It travels from the standby position A (see Figures 7 and 8) which is the farthest away from the machine, towards the working position B where it comes into contact with the outer peripheral surface of the web roll 9, and from the working position B to the waiting position A by reversing the rotation of the motor M3. It is possible to return and run.

Incidentally, a detector 33 (see FIG. 1) consisting of a limit switch is provided at the upper end of the track 13, 14 to detect the position when the self-propelled cart 15 returns to the standby position.

A torsion coil spring 30 is fitted on both end sides of the wheel axle 25, and one end 30a of each torsion coil spring 30 is fixed to each vehicle frame 24, and the other end 30b is at the center of the wheel axle 25. The flange portion 3 protrudes from the
1, and the coil spring 30 is torsioned by the rotation of the wheel set 25 when the self-propelled trolley 15 travels from the standby position to the operating position.

Therefore, when the self-propelled cart 15 is driven toward the operating position by normal rotation of the motor M3 and the rotation transmission from the motor M3 to the wheel set 25 is cut off at the operating position, the torsion coil spring 30 accumulates The wheel axle 25 rotates in the opposite direction due to the restoring force due to the elastic energy, and the truck 15 travels in the opposite direction.

The unraveling roller 16 has a long roller body 16.
a and a plurality of short cylindrical peeling roller parts 16b made of sponge concentrically fixed at intervals in the axial direction, and both ends 16c, 16 of the roller main body 16a.
c is pivotally supported via bearings 33 to the pair of left and right vehicle frames 24 and 24. Further, one of the car frames 24 is equipped with a motor M1 as a means for rotating a dissolving roller.
A drive shaft 35 directly connected to the output shaft of the motor Ml and supported by a bearing 34 and the roller main body 16a are connected to a swimming pulley 36, 37 and a timing heald 3.
8, and the normal rotation of the motor M1 rotates the unraveling roller 16, and each peeling roller part 1
6b comes into rotational contact with the outer circumferential surface of the original fabric col 9 and can peel off the free end portion Te of the heavy body.

As described above, the unraveling roller 16 descends to the working position together with the self-propelled cart 15, and at that position, each peeling roller part 16a comes into rotational contact with the outer peripheral surface of the raw roll 9 and peels off the heavy free end Te. However, in this operating position, the running driving force of the self-propelled cart 15 acts as a pushing force on the raw fabric roll 9 via each peeling roller part 16a, so that the peeling roller When the part 16a contacts and rotates to a certain extent, the contact friction force between the two becomes large and the rotation of the unraveling roller 16 is decelerated or stopped, and the detector S2 for detecting such a state is activated. It is provided. That is, as is clear from FIG. 5, this detector S2 is attached to one of the vehicle frames 24 of the self-propelled truck 15, and is connected to an operating lever 39 that opens and closes the Mitsutwitch LS.
A detection roller 40 is pivotally attached to the tip of this lever 39 and rolls into contact with the outer peripheral surface of the timing heald 38, and the timing heald 38 is always curved inward so that the detection roller 40 comes into contact with it. It consists of a tension coil spring 41 for holding, and an unraveling roller 16.
is subjected to a predetermined frictional force and its rotation is decelerated or stopped, the curved timing heald 38 on the side that comes into contact with the detection roller 40 due to rotation of only the drive shaft 35 side
The portion is pulled outward as shown by the dashed line in FIG. 5, and the operating lever 39 is thereby rotated in the direction of the arrow to turn on the limit switch LS, and the frictional force is released. When the unraveling roller 16 returns to its original rotational speed, the timing belt 38 also returns to the state shown by the solid line in FIG. and limit switch LS
to operate on Kano F. In addition, limit switch LS is ON.
As a result of the operation, the electromagnetic clutch MC that connects the motor M3 for driving the self-propelled bogie and the wheel axle 25 is disconnected, cutting off the rotation transmission from the motor M3 to the wheel axle 25, and the OFF operation engages the electromagnetic clutch MC, which connects the motor M3 and the wheel axle 25. M1 and wheel set 25 are interlocked and connected. 42 in Figure 5 is the timing heald 38
This is a tension roller disposed on the opposite side to the detection roller 40, and can be provided as necessary.

As is clear with reference to FIGS. 1 and 2, pressurized air is injected from a required height above almost the boundary between the web roll 9 and the unrolling roller 16 that comes into contact with it. An air injection means 43 is provided for effectively pulling out the free end Te of the fabric from the raw fabric roll 2 by the unraveling roller 16, and this air injection means 43
A rectangular cylindrical air injection pipe 44 horizontally suspended from support columns 46 and 46 erected at the center of each of the side frames 21 and 22.
A blower 45° 45 is attached to both ends of the air supply pipe 44 to supply air thereto, and a large number of air injection holes (not shown) are provided on the lower surface of the air injection pipe 44 in the longitudinal direction. ] L holes are drilled at the required pitch.

According to this air injection means 43, when air is injected from the air injection pipe 44 to the boundary part, the tip edge of the free end Te of the fabric body which is in close contact with the lower surface of the heavy body of the fabric roll 9 is The cloth is loosened by the air, and the free end of the cloth can be easily and reliably peeled off by the unraveling roller 16. Note that air injection by the air injection means 43 is performed continuously during the unraveling operation.

As shown in FIGS. 1 and 7, the raw fabric roll 9 is
On the pair of inclined heald conveyors 11.12 constituting the support rotation driving means 10, the free end portion Te of the cloth comes out from below the unraveling roller 16 and can face the unraveling roller 16. As shown in FIG. A position spaced a certain distance 12 lees from the free end of the heavy body T in the body length direction and a certain distance 12 from one side edge of the heavy body T in the body width direction, so as to be detected by the detector S1 when the body is in the heavy body T position. , mark K to be detected using a light reflecting tape in advance.
is attached.

Further, the raw roll 9 is positioned in the axial direction by positioning means comprising a fixed guide plate 47 and a movable guide plate 48 rotatably abutted on both end surfaces of the shaft core 9a. As shown in FIG. 2, the movable guide plate 48 is connected to the rotating shaft 46, 46 (see FIG.
A fixed guide shaft 50 is threaded onto the threaded shaft portion 49a of No. 9 and is horizontally suspended between the same supports in parallel with the rotating shaft 49.
The rotating shaft 49 is operatively connected to the motor M6. Therefore, this motor M
The movable guide 48 can be moved in the axial direction by the rotation of the rotary shaft 49 caused by the operation of the movable guide 48.

In FIG. 1, M4 is a motor that drives the first heald conveyor 5, and M5 is a motor that drives the second heald conveyor 6 and delivery roller 7. Also 51
is the intermediate support roller.

On the other hand, regarding the unraveling work, the motors M1, M2, . M3
．． M4. M5, electromagnetic clutch MC, etc. are connected to the detector Sl.
, 32. It is automatically controlled based on the detection signal etc. from 33.

Next, the unraveling work that is automatically controlled by the control means 52 will be explained.

Once the axial position of the web roll 9 has been regulated by the pair of positioning means of the support rotation drive means 10, both helt conveyors 11 and 12 are driven to run in the directions shown by the arrows in FIG. 1 by the motor M2, As a result, the raw fabric roll 9 rotates in the direction without letting out the tangible T. and the seventh
As shown in the figure, when the free end Te of the fabric roll 9 reaches the position facing the unraveling roller 16, the detector S1 detects the mark K to be detected, and is linked to this detection operation. The inclined conveyor belt 11.12 is driven by the motor M2.
stops running.

Next, the motors Ml and M3 are energized, and the self-propelled trolley 15 travels from the standby position A toward the operating position B.
The unraveling roller 16 is connected to the heel conveyor 11. +2
It is rotationally driven in the same direction as the rotation in the feeding direction of the original fabric roll 9 which is rotationally driven by. And self-propelled trolley 15
When the unraveling roller 16 travels to the action position B and comes into contact with the cloth free end Te of the raw fabric roll 9, the cloth The body free end Te is gradually peeled off in the direction away from the original fabric roll 9. While the unraveling roller 16 rotates in contact with the cloth free end Te to a certain extent, the contact friction force of the unraveling roller 16 with respect to the original fabric roll 9 increases, and the rotation of the unraveling roller 16 increases. When the vehicle is decelerated or stopped, the detector S2 detects such a state, and in conjunction with this detection operation, the electromagnetic clutch MC that connects the motor M3 for driving the self-propelled bogie and the wheel axle 25 is disconnected, and the motor M
The transmission of the rotational force from 3 to the wheel shaft 25 is cut off, and as a result, the self-propelled cart 15 becomes free and moves in the opposite direction, that is, in the direction away from the material roll 9, due to the elastic restoring force of the torsion coil spring 30. do. In this way, self-propelled trolley 15
When the unrolling roller 16 moves in the opposite direction to, for example, the position B' in FIG. The self-propelled cart 15 travels to the operating position where the unraveling roller 16 comes into contact with the raw fabric roll 9, and at that operating position, the unraveling roller 16 performs a peeling operation of the tangible loose ends T and Q. be exposed. In this way, while the self-propelled cart 15 is reciprocating several times between the working position B and the position B' which is further away from the working position B and repeating the peeling operation,
The cloth free end Te is transferred onto the inclined belt conveyor 12 of the support rotation driving means 10 from the state shown in FIG. Note that this repeated peeling operation by the unraveling roller 16 is performed for a predetermined time set in advance by a timer.

On the other hand, during the peeling operation using the unraveling roller 16,
Since pressurized air is injected from the injection pipe 44 of the air injection means 43 to the boundary between the unraveling roller 16 and the raw fabric roll 9, the free end of the fabric that is in close contact with the surface of the heavy body T is The tip edge of part Te is fully loosened,
Thereby, the free end Te of the cloth body can be effectively peeled off.

If the set time of the peeling operation has elapsed, motor M2.
M4. M5 is energized and the inclined conveyor is applied! , 12 again run in the direction of the arrow in FIG. 1, the raw fabric roll 9 is rotationally driven in the direction of feeding out the material, and the free end portion Te of the rare material transferred onto the inclined helt conveyor 12 is as shown in FIG. From the end of the conveyor belt to the guide 53 → intermediate roller 51 → first heald conveyor 5 → second heald conveyor 6 →
A cutting device 8 for sorting the heavy body back and forth via the feeding roller 7
On the other hand, the motor M3 is reversely supplied to the self-propelled trolley 15.
The motor M3 returns to the standby position A and is stopped at the standby position A when the motor M3 is detected by the detector S3.

In the embodiment described above, the self-propelled cart is reciprocated several times between the operating position and a position slightly further away by the torsion spring means provided on the self-propelled cart. The peeling operation of the free end of the fabric is repeated several times, but this is to ensure that the peeling operation of the free edge of the fabric is performed more reliably by rotation of the unraveling roller in contact with the original roll. Therefore, the free end portion of the fabric can be sufficiently peeled off from the raw fabric roll even by one peeling operation of the unraveling roller by one reciprocation of the self-propelled cart.

It is a side view explaining unraveling work by position.

(Effects of the Invention) According to the unraveling device of the present invention, during unraveling work, as long as the raw roll is supported on the support rotation drive means,
The free end of the fabric can be pulled out regardless of the position of the free end of the fabric on the roll of fabric at that time, and without the need for human labor, increasing the efficiency and streamlining of the unraveling work. .

In addition, since the unrolling roller is installed on a self-propelled cart that can approach and approach the roll of raw material along an inclined track, it is independent of the diameter of the roll of raw material, that is, the thickness of the tangible roll. It comes into contact with the outer circumferential surface of the original roll and can be unrolled accurately.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of the entire spreader, Figure 2 is a plan view of the unraveling device, and Figure 3 is an enlarged view of the main parts of the unraveling device, viewed from a direction perpendicular to the track surface of the self-propelled cart. 4 is a partially sectional front view of the unraveling device shown in FIG. 3, FIG. 5 is an enlarged vertical sectional view of the self-propelled cart, FIG. 6 is a perspective view of the raw fabric roll, and FIGS. Figure 9 shows a belt conveyor in the form of unraveling, 13. 14... Track, 15... Self-propelled cart, 16... Roller for unraveling, T
...Tangible, Te...Fabric body free end, Ml-M5...
Motor, MC...electromagnetic clutch, 31-S3...detector, K...detected Mac.

Claims (1)

[Claims] A support rotation drive means for supporting the raw fabric roll at a desired height and contacting and rotationally driving it in the feeding direction; A self-propelled cart capable of traveling near and far, a unraveling roller that is rotatably supported by the self-propelled cart and rotationally driven by a rotational drive means and capable of abutting against the fabric roll, and a free end of the fabric roll of the fabric roll. a detecting means for detecting a mark to be detected provided on the fabric surface of the raw roll when the part is in a position facing the unraveling roller; and a supporting rotation driving means in conjunction with the detection operation of the detecting means. A control means for stopping the rotation of the raw fabric roll and rotating the unraveling roller in the same direction as the rotation of the unwinding direction of the raw fabric roll to cause the self-propelled cart to travel toward the raw fabric roll. Unraveling device in the reversing machine.